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EP4142963B1 - Cartouche de matériau et procédé de fabrication d'une cartouche de matériau - Google Patents

Cartouche de matériau et procédé de fabrication d'une cartouche de matériau Download PDF

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Publication number
EP4142963B1
EP4142963B1 EP21721475.8A EP21721475A EP4142963B1 EP 4142963 B1 EP4142963 B1 EP 4142963B1 EP 21721475 A EP21721475 A EP 21721475A EP 4142963 B1 EP4142963 B1 EP 4142963B1
Authority
EP
European Patent Office
Prior art keywords
container
material mixture
opening
heating
molten metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21721475.8A
Other languages
German (de)
English (en)
Other versions
EP4142963C0 (fr
EP4142963A1 (fr
Inventor
Fabian DOBMEIER
Wolfram Volk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP4142963A1 publication Critical patent/EP4142963A1/fr
Application granted granted Critical
Publication of EP4142963C0 publication Critical patent/EP4142963C0/fr
Publication of EP4142963B1 publication Critical patent/EP4142963B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/08—Controlling, supervising, e.g. for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
    • B22D37/005—Shielding the molten metal stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/06—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal

Definitions

  • the present application relates to a method for producing a material cartridge for preserving a material mixture susceptible to corrosion by air, in particular a metal melt or one or more metal solids.
  • the present application relates to a container for use in such a method for producing a material cartridge and to the produced material cartridge comprising the container.
  • the application relates to a method for producing a cast product using the material cartridge and to a corresponding cast product.
  • US 2002/000303 A1 relates to the production of light metal castings made of magnesium or magnesium alloys.
  • the production comprises feeding a liquid metal first into a dosing chamber; pumping gas under pressure into the dosing chamber in order to press the liquid metal into a previously evacuated mold cavity; carrying out a production process within a system that is pressure-tight from the outside; heating the liquid metal in a lower part of a melting device that is connected to a feed system; superheating the liquid metal from a melting state with a temperature of about 630° C to a solidification state on a tool side to a lower region of a valve seat; and feeding and removing a protective gas through a differential pressure system.
  • EP 3 246 114 A1 relates to a low pressure casting apparatus comprising a core which together with a mold forms a cavity, and a reduced pressure dryer configured to dry the core under reduced pressure.
  • the core is placed in the mold, the mold is closed, the core is dried under reduced pressure, and then the cavity is filled with molten metal.
  • CN 107 866 546 A relates to a method for differential pressure casting comprising the steps of designing a hollow structure with a wall thickness of 4 mm, subjecting an aluminum alloy to a two-stage treatment, casting a sand core into a sand core mold.
  • the cast sand core is placed in a vacuum differential pressure casting mold, a metamorphic aluminum alloy liquid is molded by a vacuum differential pressure casting process, the sand core is removed after molding, and a semi-finished product of a hollow vehicle frame is obtained.
  • the semi-finished product is subjected to a heat treatment with increasing temperature.
  • material mixtures are used that react with air.
  • defined material mixtures such as alloys, are essential. Reactions of the defined material mixtures with components of the air lead to changing Compositions of the material mixtures, which results in a loss of quality.
  • the processes here are typically designed for precisely defined alloys with predetermined material proportions.
  • This defined alloy is then produced in several process steps that are linked to transport steps.
  • the solid alloy components are preheated, the main alloy component is melted in a melting furnace and the alloy is precisely adjusted in a liquid state in an alloy furnace by mixing in the individual alloy components, for example by diffusion or active mixing.
  • the liquid alloy is then transferred to transport containers and taken to a casting facility. There, it is typically transferred further to a holding furnace, which keeps the alloy melt at a desired casting temperature.
  • the alloy melt is now taken in batches from the holding furnace, for example by means of a pouring spoon, transported to a casting mold, for example with a robot arm, and then poured into the casting mold provided, for example a metallic permanent mold with inserted sand cores.
  • Adjusting the alloy composition therefore requires a large number of measuring and testing equipment, and foundries must make costly purchases of plant technology in the form of furnaces, transport containers, casting systems and logistics areas.
  • the present application therefore has the object of at least partially solving the problems described above and of proposing a material cartridge and a corresponding method for producing the material cartridge for corrosion-prone material mixtures, in particular metal melts or one or more metal solids. Furthermore, the object of the present application can be to propose a container for use in the corresponding production process and a method for producing an improved cast product.
  • the method for producing a material cartridge for preserving a material mixture susceptible to corrosion by air, in particular a metal melt or one or more metal solids can comprise the following steps.
  • a container with an opening to hold the material mixture is provided.
  • the container Before a material mixture is poured into the container, the container is flushed with a protective gas.
  • a material mixture in particular a melt, is poured in through the opening of the container.
  • the material mixture is preferably poured into the container in the absence of air, in particular in a protective gas atmosphere.
  • the opening of the container is sealed gas-tight after the material mixture has been filled in.
  • a material mixture is understood to mean both a mixture of different components and a material in its pure form.
  • the material mixture is a defined mixture of different components.
  • the material mixture is an alloy.
  • the alloy preferably comprises metallic and/or non-metallic substances.
  • the alloy can have a main component.
  • the minimum weight proportion of the main component is typically material-dependent.
  • the main component can comprise at least 40 percent by weight, preferably at least 45 percent by weight, particularly preferably at least 50 percent by weight of the material mixture, particularly in the case of nickel-based alloys.
  • the main component can comprise at least 45 percent by weight, preferably at least 50 percent by weight, particularly preferably at least 60 percent by weight of the material mixture, particularly in the case of bronze-based alloys.
  • the main component can comprise at least 60 percent by weight, preferably at least 70 percent by weight, particularly preferably at least 80 percent by weight of the material mixture, particularly in the case of iron- or aluminum-based mixtures.
  • the components of the material mixtures are typically metallic in nature. Additionally or alternatively, the material mixture can comprise transition metals.
  • the material mixture can comprise, for example, aluminum, tin, steel, manganese, lithium, scandium, magnesium, cobalt and/or vanadium, but this is not an exhaustive list.
  • Aluminum-based material mixtures typically have at least silicon as a non-metallic component in addition to the main component aluminum. These material mixtures are typically susceptible to contamination by nitrogen or oxides.
  • Iron-based material mixtures typically have at least carbon as a non-metallic component in addition to the main component aluminum.
  • Material mixtures are typically susceptible to contamination by oxides and/or nitrate and/or nitrites.
  • Material mixtures comprising sand/binder mixtures typically comprise quartz sand and/or organic binder components, for example hydrocarbon-based resins.
  • the material mixture as a whole or components of the material mixture typically react with components of the air when they come into contact with ambient air, i.e. they corrode and/or typically change their composition. In the case of a material mixture in the form of an alloy, this typically degrades when it comes into contact with ambient air.
  • the material mixture can be in both solid and liquid form.
  • the material mixture is typically introduced into the container in liquid form.
  • the material mixture is cooled in the container Z so that it solidifies in solid form.
  • the material mixture can be in liquid form, in particular in the form of a melt, preferably in the form of a metal melt.
  • the temperatures of the melt can be defined by the material properties of the material mixture components, in particular their melting temperatures.
  • the material mixture can, for example, comprise a solid powder, for example comprising calcium.
  • this material mixture can, for example, have a temperature of at least -196°C, preferably at least -78°C, particularly preferably 20°C, or can be heated and/or cooled to this temperature in the container.
  • this material mixture can, for example, have a temperature of at most 1000°C, preferably at most 100°C, particularly preferably at most 40°C, or can be heated and/or cooled to this temperature in the container.
  • the material mixture can alternatively be in a solid state when being filled, for example as a solid body or as a bed of solid bodies.
  • the material mixture can be in the form of a cylindrical "press bolt" made of aluminum.
  • the solid bodies can be cut to size and then sealed in the container. This can simplify the filling process considerably, as only a one-time change of aggregate from solid to liquid would take place in the material cartridge.
  • the material mixture can, for example, comprise a molding material/binder mixture, for example comprising quartz sand with an organic binder.
  • this material mixture can, for example, have a temperature of at least -196°C, preferably at least -78°C, particularly preferably 20°C, or can be heated and/or cooled to this temperature in the container.
  • this material mixture can, for example, have a temperature of at most 100°C, preferably at most 60°C, particularly preferably at most 25°C, or can be heated and/or cooled to this temperature in the container.
  • the material mixture can comprise, for example, a tin alloy.
  • this material mixture can, for example, have a temperature of at least 250°C, preferably at least 280°C, particularly preferably 300°C, or can be heated and/or cooled to this temperature in the container.
  • this material mixture can, for example, have a temperature of at most 750°C, preferably at most 700°C, particularly preferably at most 680°C, or can be heated and/or cooled to this temperature in the container.
  • the material mixture can comprise, for example, a magnesium alloy.
  • this material mixture can, for example, have a temperature of at least 600°C, preferably at least 620°C, particularly preferably 650°C, or can be heated and/or cooled to this temperature in the container.
  • this material mixture can, for example, have a temperature of at most 750°C, preferably at most 700°C, particularly preferably at most 680°C, or can be heated and/or cooled to this temperature in the container.
  • the material mixture can comprise, for example, an aluminum alloy.
  • This material mixture can, for example, have a temperature of at least 665°C, preferably at least 680°C, particularly preferably 700°C when introduced into the container, or can be heated and/or cooled to this temperature in the container.
  • This material mixture can, when When introduced into the container, for example, they have a temperature of at most 1000°C, preferably at most 800°C, particularly preferably at most 750°C, or they are heated and/or cooled to this temperature in the container.
  • the material mixture can comprise, for example, a copper alloy.
  • this material mixture can have, for example, a temperature of at least 800°C, preferably at least 1000°C, particularly preferably 1100°C.
  • this material mixture can, for example, have a temperature of at most 1400°C, preferably at most 1300°C, particularly preferably at most 1150°C.
  • the material mixture can comprise, for example, an iron alloy.
  • this material mixture can, for example, have a temperature of at least 1150°C, preferably at least 1200°C, particularly preferably 1250°C, or can be heated and/or cooled to this temperature in the container.
  • this material mixture can, for example, have a temperature of at most 1400°C, preferably at most 1350°C, particularly preferably at most 1300°C, or can be heated and/or cooled to this temperature in the container.
  • the material mixture can, for example, comprise an iron alloy, in particular steel.
  • this material mixture can, for example, have a temperature of at least 1500°C, preferably at least 1550°C, particularly preferably 1590°C, or can be heated and/or cooled to this temperature in the container.
  • this material mixture can, for example, have a temperature of at most 1700°C, preferably at most 1650°C, particularly preferably at most 1600°C, or can be heated and/or cooled to this temperature in the container.
  • the material mixture can, for example, comprise high-melting materials such as tungsten.
  • This material mixture can, when introduced into the container, have a temperature of at least 2000°C, preferably at least 2500°C, particularly preferably 3480°C or can be heated and/or cooled to this temperature in the container.
  • This material mixture can, for example, have a temperature of at most 3600°C, preferably at most 3550°C, particularly preferably at most 3500°C when introduced into the container or can be heated and/or cooled to this temperature in the container.
  • the filling of the material mixture can be carried out in a filling room.
  • the filling room can have a protective gas atmosphere.
  • the filling room can be hermetically or essentially hermetically sealed from the environment, and a material mixture arranged in the filling room does not come into contact with air or essentially does not come into contact with air. In this way, for example, filling can be made possible in the absence of air. This has the advantage that a reaction of the material mixture with the air can be reduced, preferably prevented.
  • the previously introduced protective gas can be displaced when the material mixture is filled in.
  • the previously introduced protective gas can be completely displaced, in particular at least 95% displaced, preferably at least 99% displaced, particularly preferably 99.9% displaced.
  • the container interior is essentially exclusively filled with material mixture after gas-tight sealing, with at least 95% of the container interior, preferably at least 99%, particularly preferably at least 99.9% of the container interior being filled with material mixture.
  • a filling device with at least one material tank can be arranged in the filling room.
  • the filling device can contain an already defined material mixture in the material tank.
  • the defined material mixture can then be filled into the container by the filling device.
  • the filling device it is also possible for the filling device to have various material tanks and for the material mixture to be defined by filling defined amounts of the respective material from the corresponding material tank into the container. In this way, the materials of the material mixture can only be filled into the container be mixed.
  • the filling device can also be arranged in a filling room that contains air.
  • the material tank(s) can be hermetically sealed.
  • the interior of the container can be connected to the material tank(s) via lines of the filling device. It can be provided that the material tanks, the lines and the container form a room that is hermetically sealed from the environment.
  • a protective gas atmosphere can be set in the essentially hermetically sealed room.
  • an airtight or gas-tight bell encloses the filling device and/or the container.
  • a protective gas atmosphere can be set in the bell.
  • a protective gas atmosphere can be understood to mean that a protective gas is predominant in an environment and has essentially displaced the ambient air.
  • a protective gas atmosphere can be understood as a gaseous environment that is essentially non-reactive/inert to the material mixture, with reactive components only being present in an insignificant proportion, in particular less than 0.1 percent by volume, particularly preferably less than 0.005 percent by volume, very particularly preferably 0.001 percent by volume.
  • a protective gas atmosphere can also represent a vacuum.
  • the shielding gas may comprise argon, helium, xenon, nitrogen, hydrogen and/or mixtures of nitrogen and hydrogen.
  • the shielding gas may also consist of argon, helium, xenon, nitrogen, hydrogen and/or mixtures of nitrogen and hydrogen.
  • an oxide layer and/or impurities on the container can be cleaned off. Cleaning preferably takes place under a protective gas atmosphere or in a vacuum.
  • the container can be flushed with the protective gas.
  • protective gas can be introduced into the container, for example by injection.
  • the air present in the container can be displaced from the container.
  • the container can then be sealed essentially gas-tight or airtight.
  • the opening of the container can be sealed, for example, with a gas-tight plug and/or lid. This ensures that no or essentially no air penetrates into the container.
  • the lid and/or plug can be opened to pour the material mixture into the container. It can also be provided that the container is not sealed between flushing with protective gas and filling with the material mixture.
  • the material mixture and the protective gas can be filled through the same opening in the container. However, several openings can also be provided through which the protective gas or the molten material is filled.
  • an overpressure can prevail in the container.
  • the overpressure can be at least 1 bar, preferably at least 2 bar, particularly preferably at least 3 bar.
  • the overpressure can be at most 10 bar, preferably at most 8 bar, particularly preferably at most 6 bar.
  • An overpressure in the container can have the advantage that the container can be emptied to the environment simply by equalizing the pressure.
  • an ambient pressure prevails in the container during gas-tight sealing.
  • the container and/or the interior of the container can be cooled after sealing. This can lead to a negative pressure in the container.
  • the material mixture can be filled using a metallostatic pressure difference.
  • the filling using a metallostatic pressure difference can be done against gravity.
  • the filling can be done in the removal area of an alloy furnace.
  • the material mixture can be filled into the container passively by gravity.
  • the pressure prevailing in the container can be reduced. a pressure difference can be generated, through which the material mixture is introduced into the container, in particular injected.
  • the pressure in the container can be reduced compared to a pressure in a tank in which the material mixture to be filled is arranged before it is filled into the container.
  • the pressure of the protective gas contained in the container can be reduced. It is also conceivable to reduce the pressure of the already filled, liquid material mixture, preferably the molten metal.
  • a vacuum can also be generated in the container.
  • the pressure in the alloying furnace can be increased so that there is a pressure gradient compared to the pressure inside the container. This allows material mixture to be poured from the alloying furnace into the container.
  • a negative pressure can be created during filling and maintained until the gas-tight seal is achieved. It is also possible to create a negative pressure after the gas-tight seal, for example using a valve. This can ensure that a negative pressure prevails in the sealed container. This can further reduce degradation of the material mixture.
  • protective gas is introduced into the container in order to displace air contained in the container, for example in the form of a protective gas burst.
  • the protective gas can preferably be introduced at an overpressure of at least 1 bar, particularly preferably at least 2 bar, very particularly preferably at least 4 bar, compared to the pressure prevailing in the container.
  • the protective gas can be introduced at an overpressure of at most 20 bar, particularly preferably at most 10 bar, very particularly preferably at most 6 bar overpressure. Introducing protective gas into the container at increased pressure can reduce or substantially prevent evaporation of components of the material mixture, in particular evaporation of alloy elements, due to the counterpressure of the protective gas.
  • the container can be sealed gas-tight after filling with the material mixture, in particular the molten metal or the metal solid(s).
  • the opening of the container can be closed by means of a positive fit and/or frictional fit and/or material fit.
  • the opening can be closed, for example, by placing a lid on it.
  • the lid and/or the container can have sealing elements.
  • the sealing elements are preferably heat-resistant, particularly preferably up to temperatures that the introduced molten material can have.
  • the lid can be detachably attached to the container, for example by means of clamps and/or clips and/or presses and/or by means of locking pins.
  • the lid can be detachably and frictionally attached to the container, for example by means of screws and/or by pressing in a plug.
  • the lid can close the opening by means of a positive fit, for example similar to a crown cap.
  • the materials can be selected to be so heat-resistant that they can withstand the above-mentioned temperatures that the molten material can assume.
  • the lid can be designed as a put-on lid that closes the opening gas-tight by means of flanging.
  • the lid can also be designed as a plug that is pressed into the opening so that a frictional connection is created.
  • the lid can be welded to the container in such a way that the opening is sealed gas-tight.
  • the at least essentially gas-tight sealing of the opening can take place under a protective gas atmosphere or in ambient air.
  • the introduction of protective gas after filling in the material mixture can take place before and/or after the gas-tight sealing.
  • a valve can be provided on the container through which protective gas can be introduced.
  • the container can be closed within a maximum of 60 seconds, preferably a maximum of 20 seconds, particularly preferably a maximum of 5 seconds.
  • Air can be pumped out of the container. This can be done through the opening before closing the opening.
  • An additional A valve for pumping out air can be provided on the container.
  • the valve can be designed additionally or alternatively for introducing protective gas. Air is preferably pumped out after the material mixture, in particular the molten metal, has been poured into the container and before the container is closed. Air can also be pumped in via the valve after the container has been closed. After the air has been pumped out, protective gas can be introduced into the container again, for example via the additional valve. In order to avoid a negative pressure, protective gas can be poured into a previously evacuated container.
  • the container and/or the contents of the container can be cooled.
  • the container and/or the contents of the container can be cooled gradually.
  • Air can flow around the container.
  • the air flow can be natural or forced.
  • the air flowing around can in particular have been cooled for this purpose and/or have a temperature that is lower than the container and/or the interior of the container and the material mixture therein, in particular the molten metal therein.
  • the container can be immersed in a heat exchange medium for cooling, for example in water.
  • the container can comprise an integrated heat exchange system, in particular a heating/cooling system for cooling and/or heating the container and/or the interior of the container.
  • the heating/cooling system can have lines that are filled with a heat exchange medium or can be filled with a heat exchange medium.
  • the heat exchange medium can be, for example, water or an oil.
  • the heat exchange medium can comprise at least one gas, for example helium, CO2, nitrogen and/or air, whereby these have preferably each been compressed to 10 bar or more.
  • the heat exchange medium can comprise solid or liquid metal, for example lead and/or sodium and/or solid or liquid salts, for example sodium chloride, and/or hydrocarbon-based heat agents of different compositions, for example HC, HFC, CFC, HFC, HCFC.
  • the heat exchange medium can be or comprise water.
  • the heating/cooling system can be connected to an external heating and/or cooling source which cools or heats a heat exchange medium and introduces the heat exchange medium into the lines provided on the container. and removes it again after the heat exchange medium has passed through the lines.
  • a heating/cooling system can comprise an inlet connection and an outlet connection.
  • the heating/cooling system can additionally or alternatively comprise a cooling device and/or heating device arranged on the container for heating and/or cooling the heat exchange medium and/or the container and/or the container interior.
  • the container and/or the container interior can be cooled in such a way that the liquid material mixture contained therein, in particular the hot molten metal contained therein, solidifies.
  • the container and/or the container interior can in particular be cooled to room temperature, for example around 21 degrees Celsius.
  • the container and/or the container interior can be cooled to a temperature of at most 300 degrees Celsius, preferably at most 100 degrees Celsius, particularly preferably at most 20 degrees Celsius.
  • the container and/or the interior of the container can be cooled to a minimum temperature of -196 degrees Celsius, preferably to a minimum temperature of -78 degrees Celsius, particularly preferably to a minimum temperature of 20 degrees Celsius.
  • the heat dissipated can be recovered. As described above, cooling can be carried out in stages. This can be advantageous for recovering heat at different temperature levels.
  • three-stage cooling can be carried out. This is described below as an example for a container that is at least partially filled with a liquid aluminum alloy.
  • the first stage of cooling can take place from around 700°C to 500°C in a closed cooling section with an air stream. Hot air with temperatures of up to 600°C, or even higher, can be generated. This can be used to drive a gas turbine, for example.
  • a second stage of cooling can also take place with air or steam.
  • the container can be cooled from 500°C to 200°C, for example.
  • the resulting heated air stream can be used to operate a low-pressure steam turbine or to preheat melting material.
  • the container can then be cooled to below 200°C using an air stream. This can be used to dry the melting material or to generate steam for the second cooling stage.
  • the thermal energy during cooling can be used to operate heat pumps, which mean increased efficiency for heating applications, for example for buildings or a.
  • Possible designs of a container that can be used in the process are described in more detail below.
  • the container comprises a support structure.
  • the support structure forms an interior space.
  • the interior space is designed to accommodate a material mixture with a temperature of up to 3500 degrees Celsius.
  • the interior space can therefore comprise protective layers that line the interior space at least in parts.
  • the support structure can be cylindrical and hollow, wherein the upper base surface of the cylinder can be at least partially designed as a filling opening.
  • the support structure can be pot-shaped.
  • the container and/or the support structure can be made of metal and/or ceramic.
  • the container and/or the support structure can be made of boron nitride.
  • the container comprises a first opening for filling and/or emptying the material mixture, preferably a molten metal, into or from the interior of the container.
  • the container is preferably designed in such a way that it can withstand a hot material mixture, preferably a molten metal, when filled in. Withstanding is to be understood as meaning that the container can hold a material mixture, preferably a molten metal, with a temperature of up to 800 degrees Celsius, preferably up to 1000 degrees Celsius, particularly preferably up to 1600 degrees Celsius for at least 3 minutes, preferably at least 15 minutes, particularly preferably at least 60 minutes, without being destroyed or damaged to such an extent that the protective gas and/or material mixture contained therein escapes and/or the container can no longer be sealed gas-tight.
  • the material mixture, preferably the molten metal comprises aluminum
  • the container preferably withstands a temperature of at least 800° C.
  • the material mixture, preferably the molten metal comprises steel
  • the container shall preferably withstand a temperature of at least 1600° C.
  • the material mixture preferably the molten metal
  • the container is preferably designed to withstand the stress caused by cooling and the associated expansion of the material mixture, preferably the molten metal.
  • the container can be designed such that after the material mixture, preferably the molten metal, has solidified, it can withstand reheating of the material mixture, preferably the molten metal, so that it assumes a liquid state again.
  • the container can comprise a support structure comprising metal, for example tinplate, steel, in particular structural steel, stainless steel, iron, in particular iron-based materials and/or nickel-based materials and/or tungsten, in particular formed using powder metallurgy, and/or ceramic, for example graphite, aluminum oxide, zirconium oxide and/or boron nitride, and/or glass, for example silicate glass, borate glass, borosilicate and/or phosphate glasses.
  • metal for example tinplate, steel, in particular structural steel, stainless steel, iron, in particular iron-based materials and/or nickel-based materials and/or tungsten, in particular formed using powder metallurgy, and/or ceramic, for example graphite, aluminum oxide, zirconium oxide and/or boron nitride, and/or glass, for example silicate glass, borate glass, borosilicate and/or phosphate glasses.
  • the container can comprise corrosion protection.
  • the container material can be inert to ambient air.
  • the corrosion protection can be applied to an outer wall of the container so that the container does not react or reacts only insignificantly with ambient air.
  • the corrosion protection can be designed in such a way that it protects against corrosion at high temperatures, particularly preferably at temperatures that are required to melt the material mixture in the interior of the container.
  • a sprayed and dried layer comprising boron nitride or made of boron nitride can be used as corrosion protection. This can be particularly advantageous when using molten aluminum as a material mixture.
  • the container interior can, at least in regions, be provided with a separating layer, preferably a ceramic separating layer, for example comprising a ceramic coating.
  • the separating layer can have an insulating effect and, for example, protect the support structure from a hot material mixture that can be introduced into the container.
  • the separating layer can additionally or alternatively be designed in such a way that it comprises materials that react little or not at all chemically with a material mixture that can be filled in.
  • the separating layer can be made of boron nitride, for example.
  • the boron nitride can, for example, be sprayed onto an inner surface of the container. This can be particularly advantageous when using molten aluminum as the material mixture.
  • the container can be made of a commercially available steel sheet.
  • the sheet thickness can be, for example, at least 0.3 mm, preferably at least 0.4 mm, particularly preferably at least 0.6 mm and/or, for example, at most 1.4 mm, preferably at most 1.2 mm, particularly preferably at most 0.8 mm, very particularly preferably 0.6 mm.
  • the container itself can be made of boron nitride, so that an additional boron nitride separating layer is not necessary.
  • the container can have additional thermal insulation.
  • the thermal insulation can be designed as an insulating layer that lines the interior of the container at least in some areas or is arranged between the interior of the container and the separating layer.
  • the thermal insulation can be arranged on the outside of the support structure.
  • the thermal insulation in the form of an insulating layer can cover an outer wall of the container at least in some areas.
  • the insulating layer can comprise glass wool and/or insulating foams and/or gases and/or vacuum. Additionally or alternatively, thermal insulation can be designed as an intermediate layer. Additionally or alternatively, thermal insulation can be arranged in an intermediate layer between a separating layer and the support structure.
  • the container may be made from a material already coated with a separating layer and/or an insulating layer and/or a corrosion protection agent and then formed into a container shape and/or the container may first be formed into the container shape and then coated with the separating layer and/or the insulating layer and/or the corrosion protection agent.
  • the first opening of the container can be sealed gas-tight.
  • the opening can be designed such that a material mixture, in particular a hot metal melt, can be poured in through the opening.
  • the opening can be sealed gas-tight by means of a lid.
  • the container has a container lid for sealing the first opening gas-tight.
  • the container lid can comprise sealing elements for sealing the container opening gas-tight.
  • the lid can comprise a clamp closure and/or screws and/or clamps and/or similar closure mechanisms that are common to those skilled in the art.
  • the opening can be covered with a lid.
  • the lid can be welded to the container in this way.
  • the lid can be designed as a plug that seals the opening with friction.
  • the lid and the support structure are typically thicker than with welding. With welding, the lid can be thinner. If the lid is closed with a flange onto the container, the material thickness can be less than with welding. It is possible for the container to have a shoulder so that the lid can be pressed onto the container with clamps.
  • the seal can be made using metal and/or a sealing ring, preferably a copper sealing ring.
  • the lid may comprise one or more of the described separating layers and/or thermal insulation layers and/or chemical insulation layers.
  • the container can have at least one further opening.
  • the container can have an opening for emptying and an opening for filling the container.
  • the openings can be sealed gas-tight.
  • the container can have at least one one-way valve and/or at least one two-way valve for controlling a gas pressure in the container interior. For example, air can be sucked out of the container through the one-way valve.
  • the one-way valve can alternatively be designed such that protective gas can be introduced into the container interior through the one-way valve.
  • the two-way valve can be designed to suck air from the interior of the container.
  • the two-way valve can be designed to be able to introduce protective gas into the interior of the container.
  • a one-way valve and/or a two-way valve can be arranged on a top side of the container.
  • a one-way valve and/or a two-way valve can be arranged on the lid.
  • the container can have a slide that allows the interior of the container to be enlarged or reduced. By reducing the interior of the container, the pressure in the interior of the container can be increased. This can be advantageous in order to discharge a material mixture contained in the container, in particular a metal melt, from the interior of the container in a defined manner when the opening is open.
  • the container can comprise a thermocouple for monitoring the temperature in the container interior.
  • the thermocouple can be arranged in a protective tube.
  • the protective tube can protrude into the container interior.
  • the thermocouple can additionally or alternatively be arranged on the bottom of the container interior and/or on a container interior wall.
  • the container can have a predetermined breaking point for destructive opening of the container.
  • the predetermined breaking point can be arranged in an area of the support structure with a low wall thickness.
  • the support structure can have a wall thickness of at most 10 mm there, preferably at most 2 mm, particularly preferably at most 0.5 mm.
  • the support structure can comprise a different material and/or a different composition than the rest of the support structure.
  • the support structure can comprise one or more of the materials listed above with regard to the support structure.
  • the support structure can have a wall thickness of at least 0.1 mm, preferably at least 0.2 mm, particularly preferably at least 0.4 mm.
  • the selection of the wall thickness depends on the material of the support structure, is familiar to a person skilled in the art, and can deviate from these values.
  • the predetermined breaking point can be designed as a push-in opening and/or as a pull opening.
  • the predetermined breaking point can have a circular shape so that it can be pierced.
  • the predetermined breaking point can also have an elongated Shape, or the shape of an imperfect ellipse or a circular arc, so that it can be pulled open like a can from the food industry.
  • the predetermined breaking point can be made of a material that can be melted locally, for example with an oxygen lance.
  • the predetermined breaking point and/or the second opening for emptying the container can be arranged on an underside of the container.
  • a molten material in the container can close the second opening or can cover the predetermined breaking point.
  • the second opening or the predetermined breaking point can be designed in such a way that a molten material in the container is held in the container by its surface tension, even if the second opening is open or even if the predetermined breaking point is destroyed.
  • the molten material can preferably only emerge from the second opening or the destroyed predetermined breaking point when a further opening in the container is opened, for example the first opening described above is opened by loosening the lid or for example by opening a valve arranged on the container.
  • a gas for example air or a protective gas
  • a gas can flow into the container through the further opening and/or by opening the valve and the molten material can emerge from the second opening or the destroyed predetermined breaking point.
  • a second opening and/or predetermined breaking point designed in this way can have the advantage that the location and/or the time of emptying can differ from the location and/or the time of opening the second opening, for example by opening a second lid and/or destroying the predetermined breaking point.
  • a further advantage can be that any chips/fragments created during the (destructive) opening cannot fall into a casting mold.
  • a valve can in particular enable and/or improve dosing of the material melt discharge.
  • the second opening and/or the predetermined breaking point can have an opening area of at least 0.5 cm 2 , preferably at least 0.7 cm 2 , particularly preferably at least 1 cm 2 and/or of at most 5 cm 2 , preferably at most 3 cm 2 , particularly preferably at most 1.5 cm 2 , for example about 1 cm 2 .
  • the valve and/or the first opening can be arranged on an upper side of the container.
  • a top side is that side of the container which, in a container filled with molten material, is above a molten material level lies, while the bottom of a container filled with molten material lies particularly below the molten material level.
  • the container may comprise a heating and/or cooling system for heating and/or cooling the container interior.
  • the container can comprise an integrated heat exchanger system, in particular a heating/cooling system for cooling and/or heating the container and/or the container interior.
  • the heating/cooling system can be designed as a line system for receiving a heat exchanger medium, in particular in the form of a heat exchanger tube protruding into the container interior and/or in the form of lines that lie in a container wall, on the support structure and/or are embedded in the support or separating structure.
  • the heat exchanger tube can be arranged centrally in the container.
  • the container can have connections that can be arranged in particular on an outside of the container.
  • An external cooling and/or heating device can be connected to these connections for transporting a heat exchange medium through the heat exchanger tube.
  • a material that conducts heat well for example aluminum and/or copper and/or hot-work steel with a high thermal conductivity coefficient, can be attached to the heat exchanger tube.
  • the surface of the heat exchanger tube can have a meandering shape or the shape of a snow crystal, at least in some areas. In this way, the surface can be increased so that cooling and/or heating speeds can be increased.
  • the heating/cooling system lines can have lines that are filled with a heat exchange medium or can be filled with a heat exchange medium.
  • the heating/cooling system can be connected to an external heating and/or cooling source for this purpose.
  • the external heating and/or cooling source can cool or heat a heat exchange medium and introduce the heat exchange medium into the lines provided on the container and remove the heat exchange medium again after the heat exchange medium has passed through the lines.
  • the heating/cooling system can have an inlet connection for this purpose. and an output connection.
  • the heating/cooling system can additionally or alternatively comprise a cooling device and/or heating device arranged on the container for heating and/or cooling the heat exchange medium and/or the container and/or the container interior.
  • the heating/cooling system can be designed such that the container and/or the container interior is heated or cooled such that a material mixture that can be filled into it can be brought from a solid state into a liquid state by heating and/or can be brought from a liquid state into a solid state by cooling.
  • the heating/cooling system can be designed such that the container and/or the container interior can be heated or cooled to a temperature that corresponds to the temperatures specified above, in particular those dependent on the material.
  • the heating and/or cooling system can comprise heating elements for heating the interior of the container by means of induction or microwaves.
  • the heating elements can be coupled in electromagnetically by means of induction or microwaves.
  • the heating elements can also be designed as a layer that can be coupled in magnetically. Heating elements can be arranged between the support structure and the separating layer. The heating elements can be arranged in the separating layer.
  • the heating and/or cooling system can be designed as an electrical heating system with heating wires.
  • the heating wires can run between a separating layer and the support structure and/or run in the support structure and/or lie against it and/or run in the separating layer and/or lie against it.
  • the container may have a battery or accumulator connected to the heating wires.
  • the heating and/or cooling system can be designed as a chemical heating medium.
  • the heating and/or cooling system can in particular be designed as a heating powder or heating gel, which is used to heat the container interior by means of a exothermic reaction.
  • the heating and/or cooling system can be arranged in an intermediate layer between the support structure and the separating layer or in the separating layer and/or in a thermal insulation layer.
  • the container can have at least one receiving device for automatic material flow systems.
  • the container can have a receiving device for receiving in magazines for die casting.
  • the receiving device can be arranged on an outside of the container, preferably on the support structure. Additionally or alternatively, the container can have stacking feet for stacking in transport racks. The container can also have one or more receiving devices for manual or robot-assisted, safe lifting of individual or multiple containers and/or for safe transport on pallets. The container preferably has a substantially flat and/or level top and/or bottom for simplified stacking. The container can also have lashing eyes for safe transport and/or hooks and/or eyes for locking into transport systems.
  • the application also relates to a material cartridge for preserving a material mixture.
  • the material cartridge can be produced in particular by a method as described above.
  • the material cartridge is suitable both for a material mixture in the form of a hot metal melt and for the solid form of the material mixture, in the form of a cooled, solidified metal melt.
  • the material cartridge comprises a container according to an embodiment described above.
  • the material cartridge further comprises a material mixture, preferably in liquid or solid form, in particular a liquid or solidified metal melt, and preferably a protective gas arranged in the container.
  • a material mixture preferably in liquid or solid form, in particular a liquid or solidified metal melt, and preferably a protective gas arranged in the container.
  • the material cartridge can be designed such that the container interior is completely filled with material mixture, in particular at least 95% of the container interior, preferably at least 99% of the container interior, particularly preferably at least 99.9% of the container interior is filled with material mixture.
  • a material cartridge can be understood as a closed container filled with a solid or liquid pure substance and/or a solid and/or at least partially liquid material mixture.
  • a material cartridge can be an alloy cartridge.
  • An alloy cartridge typically comprises a container and a metallic alloy contained therein. The alloy can be in a liquid and/or solid state.
  • the material cartridge can also be a molding material/binder cartridge.
  • a molding material/binder cartridge comprises a container and a non-metallic mixture of molding materials with binder filled therein.
  • the present application furthermore includes a method for producing a cast product from a material mixture.
  • the material mixture is taken in particular from at least one material cartridge according to the above description.
  • the material mixture preferably a metal melt, can be poured from the material cartridge into a casting mold.
  • the container can be emptied at least partially, preferably into a casting mold, by increasing the pressure in the container, preferably by introducing protective gas into the container and/or by minimizing the receiving volume of the container, for example by means of a slide valve.
  • the container can also or preferably alternatively be opened destructively. For example, a predetermined breaking point can be created, a hole can be pierced or the container can be locally melted. There can be excess pressure in the container. The container can then empty when it is opened due to pressure equalization.
  • the mold into which the material mixture is poured can be filled with protective gas and/or flushed.
  • the gas pressure in the mold can be reduced, preferably in such a way that a vacuum of preferably a maximum of 100 mbar, particularly preferably a maximum of 10 mbar, very particularly preferably a maximum of 1 mbar, prevails in the mold.
  • the mold can also be first flushed with a protective gas and then a vacuum can be set.
  • the material mixture of a single material cartridge is used per casting cycle.
  • the material mixture of a single material cartridge can also be used per cast part.
  • several cast products can be cast from one material cartridge. For this purpose, an opening in the container can be closed between the castings.
  • multiple containers can be used for serial casting by using a pouring basin or in parallel by using multiple pouring openings.
  • the pouring basin can form a reservoir on the top of the mold from which the melt flows into the mold. This means that several transport containers can be emptied into the basin one after the other without interrupting the mold filling process, as the basin acts as a buffer while the transport containers are being changed.
  • several filling openings can be provided so that, for example, two pouring spoons can be emptied into the mold at the same time.
  • the material cartridge can be heated before casting, preferably by radiation, convection, conduction, microwave, induction and/or electrical heating systems. For this purpose, it can be placed in an external heating device and/or heated by a heating system integrated in the material cartridge
  • the warming device can heat the container from the outside via radiation, for example by means of heating coils.
  • the container can be heated from the outside through the container by means of convection (hot gas).
  • the container can be designed in such a way that it conducts heat well, in particular by using materials that conduct heat well, such as copper, aluminum, steels (in particular hot-work steels).
  • the container is preferably designed in such a way that it can withstand temperatures of up to 1600 degrees Celsius, at least up to 750 degrees Celsius, at least until the end of an emptying process.
  • the heating device can heat the container and its interior via conduction (heat bath).
  • the container can be designed in such a way that it conducts heat well, in particular by using materials that conduct heat well, such as copper, aluminum, steels (in particular hot-work steels).
  • the container is preferably designed in such a way that it can withstand temperatures of up to ... degrees Celsius at least until the end of an emptying process.
  • the heating device can heat the container and/or the interior of the container using electromagnetic fields (microwaves or induction).
  • the container can be permeable to electromagnetic fields or, in the case of a poorly coupling alloy to be melted, can have a well-coupling inner coating which heats the alloy to be melted via thermal conduction and, once the alloy to be melted is liquid, via convection.
  • the present application further relates to a cast product that was produced according to a method described above.
  • the features described above can be transferred to the cast product.
  • the container of the material cartridge can be reused.
  • the container can be returned after casting so that it can be refilled with the material mixture, preferably the same material mixture.
  • the parts that have come into contact with the material mixture can be Parts of the container can be exchanged so that the container can be used for a different alloy. Wear parts damaged by contact can be replaced and reused.
  • the inner separating layer can be at least partially removed after the material cartridge has been used.
  • a new separating layer can be at least partially reinserted into the container.
  • the area of the opening can also be repaired and/or replaced.
  • an area can be provided that has been destructively opened. This area can be removed and provided with a new lid. Parts of the at least destroyed lid can be reused.
  • valves can be reused.
  • the support structure can be separated from an inner, wear insert for reuse.
  • the wear insert can be provided in the interior of the container.
  • a heating/cooling device if the container comprises one, can be separated from the container and reused.
  • the heating/cooling device is preferably modular.
  • the heating/cooling device can be detachably connected to the container.
  • a destroyed opening in the container can be repaired, for example by replacing a broken opening unit with a new unit with an intact opening.
  • destructive opening systems can also be used in the reusable system.
  • the container can be crushed to a small volume and then disposed of/recycled.
  • alloys can represent a defined mixture of different metals and non-metals.
  • the described embodiments of the invention can therefore be transferred analogously to the use of defined mixed sand-binder systems, as used in the foundry industry. These also degrade under certain conditions and are therefore mixed in many cases shortly before use.
  • the use of sand-binder mixtures with controlled properties can offer process-related advantages by avoiding degradation.
  • the described embodiments can also be applied to additives in the foundry industry, which usually have to be mixed on site in the foundry shortly before use, since they are subject to temporal degradation due to contact with the ambient air.
  • the container can be arranged in an automated manner, for example by means of an industrial robot, in a bell of a filling device.
  • a lid to be described in more detail, can be arranged next to the filling device.
  • the bell can be sealed gas-tight after the container and lid have been positioned.
  • the bell can have a line for introducing protective gas. In this way, a protective gas atmosphere can be set in the bell.
  • the container can be flushed with protective gas.
  • the bell can comprise a further line via which the material mixture, preferably a defined molten metal, can be introduced into the container. After the material mixture has been filled in, the container can be sealed gas-tight with the lid. The protective gas atmosphere in the bell can then be removed.
  • the container can be arranged under a gas nozzle. Inert gas can be introduced into the container through the gas nozzle, at least partially displacing any air contained in the container.
  • the container is then arranged at a material mixing tank, for example under an alloy tank, so that the material mixture can be filled into the container.
  • the container can then be arranged at another station where the container is sealed gas-tight.
  • FIG 1 A possible embodiment of a material cartridge 1 is shown.
  • the material cartridge comprises a container 10 with a pot-shaped support structure 101, which forms a container interior 102.
  • the support structure 101 of the Figure 1 has a circular base surface 103 and side walls that are curved outwards accordingly, so that the support structure has the shape of a hollow cylinder that is open at the top.
  • the support structure 101 comprises, for example, graphite, aluminium oxide, zirconium oxide and/or boron nitride, glass, for example silicate glass, borate glass, borosilicate and/or phosphate glasses. Additionally or alternatively, the support structure comprises tinplate, steel (structural steel), stainless steel, iron, iron-based materials and/or nickel-based materials and/or tungsten (formed using powder metallurgy).
  • the container comprises a lid 105 which has an upwardly facing container opening 106 is sealed gas-tight.
  • the lid 105 is designed as a plug that seals the container opening 106 with friction.
  • the container lid 105 has the shape of a truncated cone that tapers downwards.
  • the container opening has a side wall 107 that is inclined relative to the vertical L and corresponds to the shape of the container opening 106.
  • the lid 105 seals the container opening 106 by means of a press fit.
  • the container interior 102 is lined with a separating layer 104.
  • the separating layer is designed as a ceramic separating layer and comprises boron nitride, Teflon, titanium nitride, graphite, silicone-containing separating agents, mineral oil-containing agents, wax-containing agents and/or separating substances comprising R-polysiloxanes.
  • the separating layer 104 is heat and cold resistant and protects the support structure 101 from thermal influences.
  • the container 10 is partially filled with a material mixture 108, in the present example with a steel alloy. Furthermore, a protective gas 109, in the present case argon, is arranged in the container interior 102.
  • a predetermined breaking point 110 is provided in the area of the bottom surface 103 of the container 10.
  • a material thickness of the support structure is reduced, so that the predetermined breaking point 110 has a thickness that is at least 20 percent reduced, preferably at least 30 percent reduced, particularly preferably at least 50 percent reduced, compared to the side wall and/or the further bottom surface.
  • the container can be opened destructively at the predetermined breaking point 110, for example by piercing.
  • the area of the predetermined breaking point is essentially circular.
  • the material thickness of the predetermined breaking point 110 decreases continuously from an outer circular area to a circular center 111 of the predetermined breaking point 110, so that the circular center 111 forms the area of the smallest material thickness.
  • the predetermined breaking point 110 can have a different shape.
  • a sudden decrease in the material thickness can be provided.
  • the support structure 101 has, except in the area of the predetermined breaking point 110, a material thickness of at least 1 mm, preferably at least 2 mm, particularly preferably at least 5 mm.
  • the support structure 101 has, except in the area of the predetermined breaking point 110, a material thickness of at most 20 mm, preferably at most 10 mm, particularly preferably at most 6 mm. In the area of the predetermined breaking point 110, in particular in the area of the smallest material thickness of the predetermined breaking point 110, i.e.
  • the support structure has a material thickness of at least 0.5 mm, preferably at least 1 mm, particularly preferably at least 2.5 mm and/or a material thickness of at most 10 mm, preferably at most 5 mm, particularly preferably at most 3 mm.
  • the container 10 may include a heating and/or cooling system for heating and/or cooling the container interior 102.
  • the material cartridge is in accordance with Fig. 1 (a) shown, wherein the separating layer 104 comprises heating elements 112 for heating the interior of the container by means of induction or microwaves.
  • the heating elements 112 can be coupled electromagnetically by means of induction or microwaves.
  • the heating elements 112 are shown as an example in an enlargement of a section of the separating layer 104.
  • the material cartridge is in accordance with Fig. 1 (a) shown, wherein the material cartridge comprises a line system.
  • lines 113 are integrated into the support structure 101, here into the container wall and the container base 103.
  • the lines 113 have connections (not shown) via which a heat exchange medium can be pumped into the lines 113 and pumped out again.
  • the material cartridge can further comprise a heating-cooling device.
  • the heating-cooling device can comprise the heat exchange medium.
  • the heating-cooling device can be designed such that it can heat and/or cool the heat exchange medium, for example by means of gas or electricity.
  • the heating-cooling device can have a pump to convey the heat exchange medium through the lines 113.
  • the material cartridge is in accordance with Fig. 1 (a) shown, wherein the material cartridge comprises a line system in the form of a heat exchanger tube 114 protruding into the container interior 102.
  • the heat exchanger tube 114 has connections (not shown) via which a heat exchanger medium can be pumped into the heat exchanger tube 114 and pumped out again.
  • the material cartridge can further comprise a heating-cooling device.
  • the heating-cooling device can comprise the heat exchanger medium.
  • the heating-cooling device can be designed such that it can heat and/or cool the heat exchanger medium, for example by means of gas or electricity.
  • the heating-cooling device can have a pump to convey the heat exchanger medium through the heat exchanger tube 114.
  • the material cartridge is in accordance with Fig. 1 (c) shown, wherein the line system further comprises a heat exchanger tube 114 projecting into the container interior 102 according to Figure 1 (d)
  • Line system 113,114 has connections (not shown) via which a heat exchange medium can be pumped into the lines 113 and the heat exchanger tube 114 and pumped out again.
  • the material cartridge can further comprise a heating-cooling device.
  • the heating-cooling device can comprise the heat exchange medium.
  • the heating-cooling device can be designed such that it can heat and/or cool the heat exchange medium, for example by means of gas or electricity.
  • the heating-cooling device can have a pump to convey the heat exchange medium through the heat exchanger tube 114 and the lines 113.
  • Fig. 1 (f) the material cartridge is in accordance with Fig. 1 (a) shown, wherein the container 10 comprises a heating and/or cooling system for heating and/or cooling the container interior 102.
  • the heating and/or cooling system is designed as an electrical heating system with heating wires 115 which are embedded in the support structure.
  • the heating wires can additionally or alternatively run between the separating layer 104 and the support structure 101 and/or be embedded in the separating layer.
  • the material cartridge according to Fig. 1 (f) can be connected to an external power supply, for example by having a power plug, or can include a battery and/or a rechargeable battery (not shown) with which the heating/cooling system can be operated.
  • the material cartridges of the Figs. 1 (a) to 1 (f) can have a chemical heating medium in addition to or as an alternative to the heating-cooling systems described.
  • This can be designed in particular as a heating powder or heating gel and can be activated to heat the interior of the container by means of an exothermic reaction.
  • the chemical heating medium is preferably arranged in an intermediate layer between the support structure 101 and the separating layer 104.
  • the material cartridges of the Figs. 1 (a) to 1 (f) may comprise a thermocouple arranged in a protective tube for monitoring the temperature inside the container.
  • the thermocouple may also be arranged in the separating layer.
  • the containers 10 of the Figures 1 (a) to 1 (f) can have at least one receiving device for automatic material flow systems.
  • the respective container 10 can have a receiving device for receiving in magazines for die casting.
  • the receiving device can be arranged on an outside of the container, preferably on the support structure 101. Additionally or alternatively, the container can have stacking feet for stacking in transport positions.
  • the container 10 can also have one or more receiving devices for the manual or robot-assisted, safe lifting of individual or multiple containers 10 and/or for safe transport on pallets.
  • the container 10 preferably has a substantially flat and/or level top and/or bottom for simplified stacking.
  • the container can also have lashing eyes for safe transport and/or hooks and/or eyes for locking into transport systems.
  • the Figures 2 (a) and 2 B) each show a material cartridge 1, which essentially corresponds to the material cartridge of the Figure 1 (a)
  • the material cartridge of the Figure 2 may also include some or all of the features, in particular the features relating to the heating/cooling systems, of the Figures 1 (b) - 1 (f) exhibit.
  • the lid 105 of the container 10 of the Figure 2 (a) comprises a valve 201, preferably designed as a gas valve.
  • Protective gas can be introduced into the container interior 102 and/or discharged via the valve 201.
  • Air can be pumped out of the container interior 102 through the valve 201.
  • the valve 201 has a valve actuator 202 and is designed as a cylinder valve for rotation. Other valves can also be provided to introduce protective gas and/or air into the container 10 and/or remove it.
  • the container of the Figure 2 (b) comprises a lid 105 which is attached to the container by means of knurling and thus closes the container opening 106 in a gas-tight manner.
  • the lid 105 has a two-way valve 203.
  • Protective gas can be introduced into the container interior 102 and/or discharged via the valve 203.
  • air can be pumped out of the container interior 102 via the valve 201.
  • the support structure of the container comprises holding devices 204 as a receiving device in order to improve the transportability of the container or the material cartridge.
  • the Figure 3 shows a material cartridge comprising a container 10 with a lid 105.
  • the essential features of the container 10 of the Figure 3 correspond to those of the previous figures.
  • the lid 105 and a container base 105' are attached to the container side walls by means of flanging.
  • the support structure 101 of the container as well as the lid 105 and the base 105' are made of sheet metal.
  • the lid 105 and the base 105' have gas-tight joints 301 with respect to the container side walls.
  • the material mixture 108 fills at least 95%, preferably at least 99%, particularly preferably 99.9% of the container interior 102.
  • the container interior 102 comprises a protective gas residue which fills a maximum of 5%, preferably a maximum of 1%, particularly preferably a maximum of 0.1% of the container interior volume.
  • the Figure 4 shows a material cartridge comprising a container 10 with a lid 105.
  • the essential features of the container 10 of the Figure 4 correspond to those Figure 1 to 2 , wherein the lid 105 of the container of the Figure 4 the opening 106 of the container 10 is closed with a material bond.
  • the support structure 101 and the lid 105 are made of steel.
  • the lid 105 has a centering shoulder 401 which rests against the outer wall of the container.
  • the lid 105 can be centered on the opening when placed on the container opening 106 to close the container.
  • the lid 106 is welded to the support structure 101 in such a way that the opening 106 of the container 10 is closed by the Weld seam 402 is sealed gas-tight.
  • the Figure 5 shows a material cartridge 1 with a container according to Figure 4 .
  • the material cartridge of the Figure 5 further comprises an outer pot 501, which is hollow-cylindrical in shape and has an opening 502 on its upper side for receiving the container according to Fig.4
  • the outer pot 501 comprises an intermediate layer 503, which is arranged in the side walls of the hollow cylinder of the outer pot 501.
  • the intermediate layer can be designed as a heat insulation layer.
  • the intermediate layer can comprise a heating powder for heating the container.
  • the heating powder can carry out an exothermic reaction after activation, so that the container 10 is heated.
  • An opening 504 is provided on an underside of the outer pot 501.
  • This lower opening 504 of the outer pot 501 can be closed with a lid 505.
  • the lid 505 can, for example, be screwed into the opening 504.
  • the lid serves in particular as a protective lid to protect the predetermined breaking point 110 from damage and/or as protection against heat/thermal stress caused by hot material
  • Figure 6 shows a single casting process with a material cartridge 1 according to Figure 2 (a).
  • the material cartridge 1 is placed in a piercing device 601 in a direction indicated by the arrow 603.
  • the piercing device 601 comprises a piercing mandrel 602 which pierces the predetermined breaking point 110 of the material cartridge.
  • a protective gas source is connected to the valve 201 so that protective gas, indicated by the arrow 604, is injected into the container interior 102 via the valve 201.
  • This increases the pressure in the direction 605 in the container 10 so that the material mixture 109 contained in the material cartridge 1 is introduced through an opening in the piercing mandrel 602 into a sprue 607 of a casting mold 606.
  • the controlled injection of the protective gas means that the material cartridge is emptied evenly, and air turbulence at the sprue is reduced or even prevented.
  • the direction of flow of the material mixture is shown schematically by the arrow 611.
  • the piercing mandrel preferably seals gas-tight with the pierced opening in the container, so that the material mixture does not come into contact with the ambient air when it is introduced into the mold, or only comes into contact with it to a small extent.
  • the piercing device is connected as tightly as possible to the casting mold so that the material mixture does not come into contact with ambient air or only comes into contact to a small extent.
  • the protective gas injected via the valve 201 causes the material mixture to be transported through a pouring runner 608 of the casting mold 606 into a casting cavity 609 of the casting mold 606. Air contained in the casting cavity, or in the case of a casting mold flushed with protective gas, the protective gas contained therein, shown by the arrows 612, can escape through degassing holes 610.
  • the casting cavity 609 can thus be filled in a controlled manner with material mixture 109 from the material cartridge 1 by controlled injection of the protective gas via the valve 201.
  • Fig.7 shows a single casting process, which in its essential features is similar to that of the Fig.6 , whereby a pouring basin 701 enables a serial application of material cartridges 1.
  • the piercing device 603 of the Fig.7 has a compared to the piercing device of the Figure 6 higher lateral guidance. This allows the material cartridge 1 to be better supported along its side surface.
  • Above the sprue 607 the mold 606 of the Figure 7 a pouring basin 701 for buffering the material mixture. In this way, a material cartridge 1 can be changed without air getting into the pouring runner 608 during a pouring process and thus affecting the quality of the cast part.
  • the required amount of material mixture for casting a cast part i.e.
  • the material cartridge 1 is compressed by means of a slide 702 in the direction of the arrow 703.
  • the volume in the container interior 102 is thus reduced and material mixture 109 is pressed through the opening in the piercing mandrel 602 into the pouring basin.
  • the material mixture 109 flows from the pouring basin through the pouring runner 608 into the pouring cavity 609, from which contained gases can escape through degassing holes 610, as already explained with regard to Figure 6 described.
  • Figure 8 shows a material cartridge magazine 801 for holding several material cartridges 1.
  • four material cartridges 1 are arranged in the material cartridge magazine 801, of course, depending on the mold and application, different numbers of material cartridges 1 are possible.
  • the material cartridges 1 correspond to a material cartridge 1 described above.
  • the material cartridge magazine 801 comprises vertically movable Separating floors 802 on which material cartridges can be arranged and transported in a vertical direction.
  • the material cartridges 1 of the above drawings are rotated 90 degrees anti-clockwise so that the predetermined breaking point 110 points to the right.
  • the material cartridges are arranged one above the other, one per movable floor 802 in the material cartridge magazine 801.
  • a material cartridge 1 which is located at the level of a pouring opening 803, is pushed by a pressure stamp 804 in a horizontal direction to the right against a stop.
  • the pressure stamp 804 preferably runs in a guide 805. After the material cartridge 1 has stopped on a projection of the material cartridge magazine 801 or an emptying device, the pressure stamp 804 is moved further to the right so that the material cartridge is compressed. By compressing the material cartridge, the volume inside the cartridge is reduced, so that the internal pressure increases and the predetermined breaking point 110 is broken open.
  • a piercing mandrel 602 or a similar piercing device 601 can be provided to open the predetermined breaking point 110.
  • an ejection flap 806 can be opened so that the material cartridge falls out of the emptying device 807.
  • the pressure stamp 804 moves back to the left starting position.
  • the vertically movable bases 802 move another material cartridge down to the height of the pouring opening 803 so that the pressure stamp 804 can move it to the right again at night for emptying and then compress it.
  • Automated casting can be simplified in this way.
  • Figure 9 shows a casting process in which material mixtures are taken from two material cartridges in parallel in order to introduce them into a single casting cavity 609 of a casting mold 606.
  • the material cartridges 1 correspond to those of the Figure 2 (a) .
  • the features of the casting device of the Figure 6 and the corresponding process sequence are analogous to the casting device of the Figure 9 transferable, whereby two material cartridges 1 are emptied at the same time.
  • FIG 10 shows a filling device 901 and a closing station 912.
  • the Filling device 901 is movable in the vertical direction.
  • the filling device 901 comprises a material mixing tank 902 in which material mixture 109, for example a metal alloy, is arranged.
  • the material mixture 109 is in liquid form.
  • the material mixing tank 902 of the Figure 10 has a lid 903 that seals an interior of the material mixing tank 902 in a gas-tight manner. This ensures that the material mixture 109 contained therein comes into contact with ambient air as little as possible and thus reduces degradation.
  • the material mixing tank 902 can alternatively have no lid 903 or a lid 903 that is not or cannot be closed in a gas-tight manner.
  • the filling device 901 is moved to an upper position so that a container can be arranged under the filling device 901.
  • a container 10 according to one of the above embodiments is arranged under the material mixing tank 902.
  • the filling device 901 is moved to a lower position.
  • the container opening 106 points upwards towards the material mixing tank 902.
  • a filling pipe 904 of the material mixing tank 902 extends into the container interior 102 and connects the material mixing tank interior to the container interior 102.
  • the filling device 901 comprises a bell 905 which seals a space 906 between the container 10 and the material mixing tank 902 in a gas-tight manner.
  • Protective gas shown by the arrow 908 as an example, is introduced via a gas line 907 which runs through a side wall of the bell 905 and extends into the container 10, so that the container interior 102 is flushed with protective gas. Air can be displaced and/or pumped out in the direction of the arrow 908' via another or the same line 907. A protective gas atmosphere can thus be set in the interior 906 of the bell 905.
  • a vertically movable plug 909 closes an outlet opening 910 of the material mixture tank 902. If the plug 909 is moved upwards, the outlet opening 910 is released and the liquid material mixture 109 exits through the filling pipe 904 and is introduced into the container interior 102. In this way, a filling process can be controlled by the plug movement.
  • the filling device is moved upwards.
  • the container filled with material mixture 109 is brought, for example via a conveyor belt 911, to a closing station 912, shown by the arrow 913.
  • the closing station 912 comprises a vertically movable holding device 914 for a lid 105.
  • a lid 105 is arranged in the holding device 914.
  • the container 10 filled with material mixture 109 is arranged under the holding device 914.
  • the holding device 914 is moved downwards and the opening 106 of the container 10 is closed gas-tight with the lid 105.
  • the closing station 912 can, for example, comprise a press-in stamp 915 which presses the lid 105 into the container opening 106.
  • the lid 105 can be otherwise connected gas-tight to the container opening 106 at the closing station.
  • the lid 105 can be welded or clamped. Particular reference is made to the above statements in the general description section.
  • protective gas can be injected into the material cartridge again and/or air can be pumped out.
  • the material cartridge 1 is cooled so that the material mixture 109 solidifies in it.
  • the material cartridge 1 can be stored.
  • the material cartridge 1 can also be taken directly to a casting station.
  • the filling device and the closure station can be arranged in a gas-tight sealable space 916.
  • a protective gas atmosphere can be set in the space 916 so that degradation of the material mixture during transport to the closure station is avoided or even prevented.
  • the Figures 11 to 13 show further embodiments of material cartridges 1.
  • the material cartridges 1 described therein can, for example, be produced in a single casting process according to Figure 6 or 7 , in a material cartridge magazine according to Figure 8 , a casting process according to Figure 9 or in a filling facility in accordance with Figure 10 be used.
  • Figure 11 shows a material cartridge 1, which in its essential features corresponds to the material cartridges 1 described above.
  • the cover 105 of the material cartridge 1 of the Figure 11 is connected to the support structure by means of clamps 1001 in order to seal the container interior 102, in particular the container opening 106, in a gas-tight manner.
  • the material cartridge 1 of Figure 11 (a) is almost completely filled with a material mixture 109.
  • the material cartridge 1 comprises a vertically movable inner slide 1002 with an actuator rod. In the Fig. 11 (a) the inner slide 1002 is arranged in an uppermost position. In Fig. 11(b) The inner slide 1002 is opposite the Fig. 11 (a) shown in a downward shifted position.
  • the material cartridge 1 is immersed with an opening 1003 in a liquid material mixture 109 or placed on a filling nozzle directly above the liquid material mixture 109.
  • the inner slide 1002 is then pulled upwards from a lowest position. This creates a negative pressure in the container interior 10 and the material cartridge 1 is filled with material mixture 109. the material cartridge 1 fills.
  • the material cartridge 1 can be closed with a locking slide 1004. To empty it, the locking slide 1004 is moved horizontally so that the opening 1003 is opened again.
  • the inner slide 1002 can be pressed downwards from the uppermost position so that the material mixture 109 is pressed through the opening 1003.
  • Figure 12 shows a material cartridge 1, which in the essential features of the material cartridge 1 of the Figure 1 (a) or one of the following material cartridges 1.
  • the material cartridge 1 of the Figure 12 a lower opening 1003, which in the Figure 12 (a) is closed by a melting plate 1101.
  • the lower opening 1003 is open.
  • the melting plate comprises the same material as the material mixture 109 or a higher-melting material mixture of the same base material (for example, high-melting aluminum alloy as melting plate 1101 with a low-melting aluminum alloy as content) or another base material (Iron base in aluminum material mixture).
  • the melting plate 1101 melts at a melting temperature and becomes soft or liquid.
  • the melting plate is destroyed by the internal pressure of the cartridge, so that the opening 1003 is virtually pressed open. Melting/opening when the material mixture 109 is filled into the material cartridge 1 can be prevented or reduced by actively cooling the cartridge in this area or by quickly cooling the entire cartridge. Sealing in the solid state is achieved by internal pressure.
  • the internal pressure can correspond to the values described above for filling using overpressure.
  • the material cartridge 1 can be cleaned by melting out material residues and then reused.
  • the melting plate 1101 can be inserted before filling.
  • the production of the material cartridge 1 corresponds to the production of one of the material cartridges described above.
  • a melting plate as in Figure 12 described can be combined with the material cartridges 1 or features thereof described above.
  • Figure 13 shows a material cartridge 1, which can be designed analogously to the material cartridges 1 described above.
  • the material cartridge 1 of the Figure 13 comprises a lower opening 1003 with a plate closure 1201.
  • the plate closure 1201 has two plates 1201' and 1201" arranged one above the other.
  • the plate closure 1201 can have a different number of plates, preferably a maximum of ten, particularly preferably a maximum of five plates, very particularly preferably a maximum of one plate.
  • the closure plates 1201' and 1201" are inserted before the container 10 is filled with a material mixture 109.
  • the filling process with material mixture 109 corresponds to one of the filling processes described above with regard to the other material cartridges 1.
  • the uppermost closure plate, here 1201' typically has a separating layer analogous to the separating layer 104 in the container interior. on.
  • the material cartridge 1 can be placed on a pressing device 601. As in Figure 13 (b) As shown, a piercing mandrel moves the plates 1201' and 1201", so that the opening 1003 is released and material mixture 109 can exit.
  • the material cartridge 1 By melting out material residues, the material cartridge 1 can be cleaned and then reused.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Details (AREA)
  • Packages (AREA)

Claims (15)

  1. Procédé de fabrication d'une cartouche de matériau (1) pour conserver un mélange de matériaux (109) sensible à la corrosion à l'air, comprenant les étapes suivantes
    - fournir un récipient (10) comprenant une structure de support formant un espace intérieur, dans lequel l'intérieur est conçu pour recevoir un métal fondu ayant une température allant jusqu'à 3500 degrés Celsius, et comprenant une ouverture (106) pour recevoir le mélange de matériaux (109) et un couvercle de récipient (105) pour fermer l'ouverture (106) de manière étanche aux gaz,
    - verser le mélange de matériaux (109) sous forme de métal fondu, en particulier en l'absence d'air, par l'ouverture du récipient (10),
    - fermer l'ouverture du récipient (10) de manière étanche aux gaz,
    dans lequel le récipient (10) est rincé avec un gaz protecteur avant que le mélange de matériaux (109) ne soit versé dans le récipient (10),
    dans lequel après avoir versé le mélange de matériaux, un gaz protecteur est introduit dans le récipient (10) afin d'éliminer l'air contenu dans le récipient (10),
    dans lequel le métal fondu est refroidi dans le récipient de sorte qu'il se solidifie sous forme solide.
  2. Procédé selon la revendication 1, dans lequel le métal fondu solidifié est réchauffé après le refroidissement de sorte qu'il prend à nouveau un état liquide.
  3. Procédé selon l'une quelconque des revendications précédentes, dans lequel le gaz protecteur comprend de l'argon et/ou du xénon et/ou de l'hélium et/ou de l'azote et/ou de l'hydrogène.
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel le versement du métal fondu s'effectue au moyen d'une différence de pression métallostatique ou par abaissement d'une pression régnant dans le récipient (10).
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel lors du versement du métal fondu, le gaz protecteur introduit précédemment est éliminé, en particulier au moins 95 %, de préférence au moins 99 %, de manière particulièrement préférée 99,9 %.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel lors de l'introduction d'un gaz protecteur dans le récipient (10) après le versement du mélange de matériaux (109), afin d'éliminer l'air contenu dans le récipient (10), le gaz protecteur est introduit avec une surpression d'au moins 1 bars ou de préférence d'au moins 2 bars, de manière plus préférée d'au moins 4 bars, et/ou le gaz protecteur est introduit avec une surpression d'au plus 20 bars, de préférence d'au plus 10 bars, de manière particulièrement préférée d'au plus 6 bars.
  7. Procédé selon l'une quelconque des revendications précédentes, dans lequel le récipient (10) est fermé de manière étanche aux gaz au moyen d'un verrouillage par complémentarité de formes et/ou d'un verrouillage par friction et/ou d'un verrouillage par matériau après le versement du métal fondu.
  8. Procédé selon l'une quelconque des revendications précédentes, dans lequel après le remplissage du métal fondu dans le récipient (10) et/ou avant la fermeture du récipient (10), de l'air est pompé hors du récipient (10).
  9. Procédé selon l'une quelconque des revendications précédentes, dans lequel le récipient (10) et/ou le contenu du récipient (10) est/sont refroidi(s) progressivement.
  10. Cartouche de matériau (1) pour conserver un mélange de matériaux (109), sous la forme d'un métal fondu, comprenant un récipient (10) destiné à être utilisé dans un procédé selon l'une quelconque des revendications 1 à 8, un métal fondu agencé dans le récipient (10) et un gaz protecteur agencé dans le récipient (10), le récipient comprenant
    - une structure de support formant un espace intérieur, dans laquelle l'intérieur est conçu pour recevoir un métal fondu ayant une température allant jusqu'à 3500 degrés Celsius, de préférence jusqu'à 1600 degrés Celsius, de manière particulièrement préférée jusqu'à 900 degrés Celsius,
    - une première ouverture pour verser et/ou vider le métal fondu vers/depuis l'intérieur du récipient (10),
    un couvercle de récipient (105) qui ferme la première ouverture (106) de manière étanche aux gaz,
    caractérisée en ce que le métal fondu est refroidi et solidifié.
  11. Cartouche de matériau (1) selon la revendication 10, dans laquelle l'espace intérieur de récipient (102) est revêtu au moins partiellement d'une couche de séparation (104), de préférence une couche de séparation en céramique, et/ou caractérisée par une isolation thermique qui est agencée à l'extérieur de la structure de support (101) et/ou dans une couche intermédiaire entre une couche de séparation (104) et la structure de support (101).
  12. Cartouche de matériau (1) selon l'une quelconque des revendications 10 ou 11, dans laquelle le récipient (10) comprend un système de chauffage pour chauffer l'intérieur de récipient (102), dans laquelle le système de chauffage est conçu sous la forme d'un élément chauffant chimique, en particulier sous forme de poudre chauffante ou de gel chauffant, qui peut être activé pour chauffer l'intérieur de récipient (102) au moyen d'une réaction exothermique et est de préférence agencé dans une couche intermédiaire entre la structure de support (101) et la couche de séparation (104).
  13. Cartouche de matériau (1) selon l'une quelconque des revendications 10 à 12, comprenant une vanne unidirectionnelle et/ou une vanne bidirectionnelle pour commander une pression de gaz à l'intérieur du récipient (102) et/ou
    pour surveiller la température à l'intérieur du récipient (102) par l'intermédiaire d'un thermoélément agencé dans un tube de protection.
  14. Cartouche de matériau (1) selon l'une quelconque des revendications 10 à 13, comprenant un point de rupture prédéterminé (110) d'une épaisseur réduite d'au moins 20 pour cent par rapport à la paroi latérale et/ou par rapport à la surface inférieure supplémentaire pour une ouverture destructrice du récipient (10).
  15. Cartouche de matériau (1) selon l'une quelconque des revendications 10 à 14, comprenant au moins un dispositif de réception (204) pour systèmes automatiques d'écoulement de matériau, en particulier pour la réception dans des magasins de coulée sous pression.
EP21721475.8A 2020-04-30 2021-04-22 Cartouche de matériau et procédé de fabrication d'une cartouche de matériau Active EP4142963B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020205545.9A DE102020205545A1 (de) 2020-04-30 2020-04-30 Verfahren zum Herstellen einer Materialpatrone, Behälter zur Anwendung in einem entsprechenden Verfahren, Materialpatrone sowie Verfahren zum Herstellen eines Gussproduktes unter Verwendung der Materialpatrone, sowie entsprechendes Gussprodukt
PCT/EP2021/060493 WO2021219478A1 (fr) 2020-04-30 2021-04-22 Procédé de fabrication d'une cartouche de matériau, récipient destiné à être utilisé dans un procédé correspondant, cartouche de matériau et procédé de production d'un produit coulé à l'aide de la cartouche de matériau, et produit coulé correspondant

Publications (3)

Publication Number Publication Date
EP4142963A1 EP4142963A1 (fr) 2023-03-08
EP4142963C0 EP4142963C0 (fr) 2024-08-07
EP4142963B1 true EP4142963B1 (fr) 2024-08-07

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EP (1) EP4142963B1 (fr)
DE (1) DE102020205545A1 (fr)
WO (1) WO2021219478A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN116851700B (zh) * 2023-07-06 2024-04-05 东莞市铭能五金有限公司 一种铝合金压铸结构部件成型模具
DE102024107167A1 (de) 2024-03-13 2025-09-18 Scherer Metalltechnik GmbH Ballasttrog für Batterien, Herstellverfahren und mobile Arbeitsmaschine

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Publication number Priority date Publication date Assignee Title
AU3006601A (en) 1999-12-10 2001-06-18 Henkel Kommanditgesellschaft Auf Aktien Packing drum with a melt adhesive and charging with adhesive
DE10025014C2 (de) * 2000-05-22 2003-07-24 Kern Gmbh Leichtmetall Giestec Vorrichtung zur Herstellung von Leichtmetallgußerzeugnissen, insbesondere von Teilen aus Magnesium bzw. Magnesiumlegierungen
EP2407260A1 (fr) 2010-07-14 2012-01-18 MELTEC Industrieofenbau GmbH Dispositif et procédé de dosage de masses fondues et machine de coulée
KR101870591B1 (ko) * 2015-01-15 2018-06-22 닛산 지도우샤 가부시키가이샤 저압 주조 방법 및 저압 주조 장치
CN105057634B (zh) 2015-07-20 2017-07-14 广东科达洁能股份有限公司 一种真空汲取定量金属液的方法及装置
CN107866546B (zh) * 2017-12-18 2021-02-23 广东鸿泰科技股份有限公司 一种空心车架设计与差压铸造方法

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DE102020205545A1 (de) 2021-11-04
EP4142963C0 (fr) 2024-08-07
EP4142963A1 (fr) 2023-03-08
WO2021219478A1 (fr) 2021-11-04

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