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EP3171999A1 - Équipement de fusion pour fusion de matériaux de fonte ainsi que procédé de production d'une fonte pour le coulage - Google Patents

Équipement de fusion pour fusion de matériaux de fonte ainsi que procédé de production d'une fonte pour le coulage

Info

Publication number
EP3171999A1
EP3171999A1 EP15735928.2A EP15735928A EP3171999A1 EP 3171999 A1 EP3171999 A1 EP 3171999A1 EP 15735928 A EP15735928 A EP 15735928A EP 3171999 A1 EP3171999 A1 EP 3171999A1
Authority
EP
European Patent Office
Prior art keywords
furnace vessel
melt
furnace
casting
melting
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.)
Withdrawn
Application number
EP15735928.2A
Other languages
German (de)
English (en)
Inventor
Stephan Schwenkel
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3171999A1 publication Critical patent/EP3171999A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B22D41/01—Heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details specially adapted for crucible or pot furnaces
    • F27B14/14—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B2014/002—Smelting process, e.g. sequences to melt a specific material
    • F27B2014/004—Process involving a smelting step, e.g. vaporisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a melting unit for melting
  • a solid body of the casting material is formed from the melt of a cast material after it has solidified in a casting mold.
  • Cast materials are especially based on iron as well as
  • Non-ferrous metals known. Common cast iron is cast iron, an iron-carbon compound, and cast steel.
  • the casting of cast materials takes place in foundries.
  • foundries in melting furnaces, for example in cupola furnaces, a mixture of various raw materials is first melted in the form of the desired casting material
  • This melt can then be cast either directly or in a process-related downstream Verg cordofen be transferred, which serves for storing and / or treatment and / or keeping warm the melt until it is fed to the downstream Gus forms, in which from the melt, a solid body or a casting is formed.
  • a process-related downstream Verg cordofen be transferred, which serves for storing and / or treatment and / or keeping warm the melt until it is fed to the downstream Gus forms, in which from the melt, a solid body or a casting is formed.
  • melt can lead to performance problems in the process if too little melt is made available to the casting furnace from the melting furnace.
  • quality problems with respect to the melt may occur if the supply of melt from the casting furnace to the casting molds falters; because in this case it can come in the lingering for a long time in the casting furnace melt by burning to a change in the chemical composition of the melt.
  • the transport of the melt from the furnace to the casting furnace can be problematic. Because usually the melt is this purpose in suitable vessels, for example by means of a forklift, transported, which may be associated with the risk of personal injury in the event of an accident.
  • the melting and casting furnace must have a high sorption capacity, so that a sufficient buffer of the melt of the cast material is available. For example, at a typical throughput of about 10 tons of cast material per hour, furnaces have about 10 tons Fas sungshunt for the casting material or the
  • the inventive idea is therefore to provide a technology with which a decoupling of furnace and
  • the invention is based on the object of providing a smelting unit for melting cast iron materials and a
  • a melting unit for melting casting materials with the following features:
  • the first furnace vessel is designed for the melting of cast iron materials and for receiving the melt formed by the melting;
  • the second furnace vessel is connected downstream of the first furnace vessel in such a process that it is possible to conduct melt formed in the first furnace vessel made of cast materials into the second furnace vessel;
  • the second furnace vessel is designed to receive the melt which can be conducted from the first furnace vessel into the second furnace vessel, and to raise the temperature of the received melt to its casting temperature.
  • Melting according to the invention is understood to mean the production of a melt from a solid material, in particular a solid cast material.
  • a cast material can be any casting material for casting, in particular a cast iron material in the form of cast iron or cast iron.
  • the casting temperature is the temperature of the melt of the casting material, which is desired in the furnace unit for the purpose
  • this casting temperature is overheated by a few degrees Celsius above the optimum temperature during subsequent casting, so that the casting temperature as well
  • Melting unit a complete decoupling of the preparation of a melt of Gus serkstoffes from the raw materials on the one hand and the provision of such a melt for their casting in Gus forms on the other hand is possible. Because the melting unit according to the invention allows both the Melting a solid cast material and the treatment of
  • the melting unit according to the invention has a first furnace vessel in which first of all a melt of the casting material can be produced from the solid cast material. For the treatment of this melt such that it is present in a desired shape for casting, in particular the desired
  • the inventive melting unit the second furnace vessel.
  • a particular feature of the melting unit according to the invention is in particular also that the second furnace vessel is not only used for keeping the first furnace vessel warm
  • the first and second furnace vessels are preferably formed with a relatively small volume for receiving casting material or a melt formed therefrom, since it has been recognized according to the invention that this brings numerous advantages.
  • a relatively small volume of the second furnace vessel only a smaller amount of melt in the furnace assembly liquid is kept ready and consumed faster at the typical throughputs than in the state-of-the-art units. This results in a short residence time of the melt in the
  • furnace assembly according to the invention, in particular in the second furnace vessel.
  • the first furnace vessel has an inlet s for the entry of solid
  • This inlet s may, for example, be an opening in the first furnace vessel.
  • the inlet s can be closed, for example.
  • the inlet s of the first furnace vessel is formed in the upper region of the first furnace vessel.
  • the first furnace vessel has a device for heating solid casting material in the first furnace vessel above its melting temperature.
  • this device can be any device known from the prior art for
  • the first furnace vessel is particularly preferably heated inductively.
  • the first furnace vessel as means for melting located in the first furnace vessel Gus serkstoff an induction device, in particular an induction coil, through which the first furnace vessel is heated inductively or by induction.
  • the first furnace vessel can be designed in this respect, for example, in the form of an induction furnace.
  • the particular advantage of such an inductively heatable first furnace vessel lies in particular in the fact that solid cast iron material contained in the first furnace vessel can be melted particularly quickly, so that the first furnace vessel can be used very flexibly for melting cast iron of desired different compositions.
  • the first furnace vessel is designed overall such that the casting material located in the first furnace vessel can be heated to a temperature in which it melts or is present as a melt.
  • the first furnace vessel need not be formed so as to be in the first furnace vessel
  • formable melt is heated to casting temperature.
  • This may be advantageous insofar as the device for heating cast material in the first furnace vessel does not have to be dimensioned in such a way that it heats the material out of the casting in the first furnace vessel
  • located melt is necessary at casting temperature.
  • the first furnace vessel - based on a throughput of one ton of cast iron per hour - means for heating or melting of in the first furnace vessel
  • the first furnace vessel is designed to receive a Gus serkerk material in the form of cast iron , As far as the first
  • Furnace vessel for receiving a cast material in the form of cast steel is designed, for example, be provided that the first furnace vessel - based on a throughput of one ton of cast iron per hour - a device for heating or melting of located in the first furnace vessel Gus sstahl with a benefit of not more than
  • 500 kW that is, for example, not more than 450 kW
  • the power of the heating means may vary linearly with throughput, eg twice as high at a throughput of 2 tons per hour and half as high as the above performances at a throughput of 0.5 tons per hour.
  • the first furnace vessel is designed to receive a cast material in the form of cast iron, it may preferably be provided that the cast iron or a melt formed therefrom be in the first furnace vessel at a temperature in the range from 1 .000 ° C. to 1. 300 ° C is heated,
  • the molten steel content of a melt formed therefrom in the first furnace vessel can be heated to a temperature in the range from 1,400 ° C. to 1,600 ° C., in particular So for example, to a temperature of at least 1 .450 ° C or, for example, at most also to a temperature of 1 .550 ° C.
  • the first furnace vessel preferably has an outlet s for discharging the melt formed in the first furnace vessel.
  • the first furnace vessel preferably has such an outlet on the bottom side, so that the first furnace vessel does not have to be tilted in order to discharge the melt from the first furnace vessel.
  • Furnace vessel is continuously used for melting of cast materials.
  • A, in particular bottom-side outlet of the first furnace vessel may preferably be closable, for example by a stopper or
  • the first furnace vessel may be provided on the inside at least partially by a refractory lining, in particular in the areas in which a melt from the casting material is present. According to a preferred embodiment, it is provided that the first furnace vessel has regions, in which it is not delivered on the inside by a refractory lining, in particular, for example, in the areas where no melt from the.
  • Casting material is present.
  • Areas can be acted upon much more effectively with heating energy than at such areas that are delivered through a refractory lining, in particular, as far as the first furnace vessel is inductively heated.
  • the second furnace vessel has an inlet s for receiving the melt of the casting material which can be conducted from the first furnace vessel into the second furnace vessel.
  • Such an inlet s may, for example, be an opening which, for example, may also be closable.
  • the opening is arranged at the top of the second furnace vessel.
  • the second furnace vessel has a means for heating this melt.
  • this device can be any device known from the prior art for melting cast iron materials in a furnace vessel, for example a gas burner.
  • the second furnace vessel can be heated inductively.
  • the second furnace vessel as a means for heating located in the second furnace vessel melt of Gus serkstoffes one
  • the second furnace vessel can be designed in this respect, for example in the form of an induction furnace, for example in the form of a crucible furnace, wherein the melt is inductively heated to the casting temperature.
  • an inductively heatable second furnace vessel lies in particular in the fact that the melt of the casting material located in the second furnace vessel can be heated particularly rapidly to its casting temperature.
  • the second furnace vessel preferably a
  • the second furnace vessel has, for example, a capacity for a cast iron melt of not more than 20% of the throughput of the furnace assembly according to the invention per hour, that is to say for example not more than 15. 10 % or 5% of throughput per hour.
  • Cast iron melt is formed in the aforementioned scope, the
  • Means - based on a throughput of one ton of cast iron per hour - for heating the melt located in the second furnace vessel have a power of, for example, at most 200 kW, ie
  • the device - based on a throughput of one ton of cast steel per hour - for heating the in the second furnace vessel melt have a power of, for example, at most 250 kW, so for example, not more than 200 kW, 150 kW, 100 kW or 50 kW at most.
  • Cast iron melt is formed at casting temperature, the second
  • Oven vessel be designed such that the cast iron melt on a
  • Temperature can be heated in the range of 1 .400 ° C to 1 .600 ° C, ie
  • the second furnace vessel for increasing the temperature of a cast steel melt is formed to casting temperature
  • the second furnace vessel may be formed such that s the casting molten steel is heated to a temperature in the range of 1 .600 ° C to 1 .700 ° C, ie for example, to a temperature of at least 1 .620 ° and for example to a temperature of
  • the second furnace vessel has an outlet s for Auslas sen of the melt formed from the second furnace vessel.
  • the second furnace vessel On the inside, the second furnace vessel is delivered through a refractory lining, which surrounds the furnace chamber for receiving the melt.
  • the melt formed in the first furnace vessel is basically any means known in the art for conducting
  • melt via channels, pipes or combinations thereof from the first furnace vessel in the second furnace vessel can be conducted.
  • These means for conducting the melt may be formed, for example, of a refractory material.
  • the melting unit is designed in such a way that the melt is guided by gravity from the first furnace vessel into the second furnace vessel.
  • the outlet s for discharging the melt from the first furnace vessel above, that is vertically higher than the highest bath level of the melt in the second furnace vessel is arranged, ie above the inlet of the second furnace vessel, as far as the inlet s of the second Oven vessel above the highest B mirror of the melt in the second furnace vessel is arranged. This makes it possible for the melt to flow from the first furnace vessel into the second furnace vessel by gravity.
  • outlet s of the first furnace vessel is arranged above the inlet ses of the second furnace vessel, the s from the Auslas s of the first furnace vessel effluent melt
  • Melting unit several first furnace vessels. These may each be formed as described herein.
  • the advantage of a melting unit with a plurality of first furnace vessels lies in particular in the fact that the latter can be charged with solid cast materials of a different composition, so that the melts formed therefrom can be combined in the second furnace vessel to form a pourable melt, which can be used as a melt represents a combination of the compositions of the melts from the first furnace vessels.
  • Melting unit according to the invention has a plurality of second furnace vessels. These may each be formed as described herein.
  • the advantage of a melting unit with several second furnace vessels is
  • liquid casting materials of a different composition in each case can be, for example, the different Verg cord Marie Marie, can be supplied.
  • the second furnace vessel is preferred for conducting the in the second
  • a treatment device is herein a
  • Casting understood which includes one or more molds stas.
  • the melting unit is designed such that the s in the second furnace vessel heated to casting temperature melt without
  • a Verg screen Marie is zuleitbar.
  • the melt heated in the second furnace vessel to the casting temperature can be fed by gravity to the casting device, for example via grooves or pipes. As a result, a - possibly dangerous - transport of the melt to the casting molds is not necessary.
  • the second furnace vessel preferably has an outlet s.
  • This outlet is preferably closable, for example via a plug or a Schieberverschlus s, which may be formed according to a Schieberverschlus s or a plug for a pan or a tundish from steel production. This allows the melt from the outlet of second furnace vessel are discharged, without the melting process would have to be interrupted in the second furnace vessel.
  • Melt from the second furnace vessel is not necessary, so that s the continuous melting operation in the second casting operation must not be interrupted s.
  • the inventive method for producing a melt for casting with a melting unit according to the invention has the following features:
  • the casting material used for the process according to the invention and the melt formed therefrom can, as stated hereinbefore, be characterized by
  • Be treated according to the invention melt aggregate.
  • the solid cast iron may preferably be in the form of cast iron or cast steel, which is initially heated in the first furnace vessel, for example, to 1 .000 ° C to 1 .300 ° C or to 1 .400 ° C to 1 .600 ° C , then in the second furnace vessel to 1 .400 ° C to 1 .600 ° C or 1 .600 ° C heated to 1 .700 ° C and finally can be forwarded from the second furnace vessel to a downstream treatment or Verg cashmaschine.
  • the process according to the invention can be part of a further process for producing the pourable melt.
  • a central inventive idea of this further, fiction, contemporary method is that the melt - in contrast to the known from the prior art method - between the first melting of the casting material from the raw materials and the provision of a moldable melt thereof is cooled, so that s from the initially formed melt a solid cast material is formed.
  • a Gus seisen- or cast steel melt created a desired composition that is either immediately shed or in liquid-state then fed to a downstream Verg tellofen, from where it is fed to the Verg automateen. According to the state of the art, therefore, the melt formed from the raw materials always remains in a molten state between its melting and pouring.
  • Composition is decoupled.
  • the solid Gus serkerkstoffe with which the inventive melting unit is equipped, for example, be pre-produced to any extent, so s s if necessary, the invention
  • Melting unit can be supplied without delay.
  • the invention allows the production of a solid
  • Gus serkschers a desired composition on the one hand from the melting of this Gus serkstoffes in the invention
  • the melting unit according to the invention can be dimensioned relatively small.
  • Figure 1 shows an inventive melting unit in a lateral
  • Melting unit is shown in a highly schematic embodiment in a side sectional view.
  • the melting unit 1 comprises a first furnace vessel 3 and a second furnace vessel 5.
  • the first furnace vessel 3 is designed as an induction furnace.
  • the first furnace vessel 3 comprises a metal jacket jacket 7, which is supplied on the inside bottom side and in the, adjacent to the bottom portions of the side walls by a refractory material 9.
  • the upper region of the side walls of the first furnace vessel 3 is not delivered by refractory material 9.
  • the refractory material 9 encloses the furnace chamber 13 of the first furnace vessel 3 so that only on the bottom side.
  • Induction coil 1 1 includes stas, so that in the oven chamber 13 befindaki
  • the first furnace vessel 3 On the upper side, the first furnace vessel 3 has an inlet 12, via which solid cast material can be introduced into the furnace chamber 13. The Einlas s 13 is closed by a flap 15. On the bottom side, the first furnace vessel 3 has an outlet 17 for discharging melt formed in the furnace chamber 13 of the first furnace vessel 3 from the casting material. The outlet s 17 is closed by a plug 19.
  • the furnace chamber 13 of the first furnace vessel 3 is designed such that in this a melt of cast material up to a bath height 21st
  • the throughput of the first furnace vessel 3 is about 10 tons of cast iron per hour. To be able to melt this amount of solid cast iron per hour, the furnace chamber 13 or in the furnace chamber 13
  • the second furnace vessel 5 is arranged below the first furnace vessel 3.
  • the second furnace vessel 5 substantially corresponds to the first furnace vessel 3.
  • the second furnace vessel 5 has a
  • Sheet metal jacket 23 which is delivered on the inside with its refractory material 25.
  • the refractory material 25 encloses the furnace chamber 27 of the second furnace vessel 5.
  • the located melt is the metal jacket 23 of the second furnace vessel 5 by an induction coil 29 includes stas through which the furnace chamber 27 is inductively heated.
  • the second furnace vessel 5 an inlet s 3 1, via the melt formed in the first furnace vessel 3 in the furnace chamber 27 of the second furnace vessel 5 is conductive.
  • the inlet s 3 1 of the second furnace vessel 5 is arranged vertically below the outlet 17 of the first furnace vessel 3, so the s from the first furnace vessel 3 effluent melt by gravity in free fall through the inlet s 3 1 of the second
  • Oven vessel 5 in the sen furnace chamber 27 flows.
  • the second furnace vessel 5 has an outlet 33, which can be closed by a stopper 35 is.
  • About the outlet s 33 is from the furnace chamber 27 of the second furnace vessel 5 outflowing melt a distributor trough 37 zuleitbar, which directs the melt directly to a process Stechnisch downstream Verg deniser (not shown).
  • the Fas sungshunt the second furnace vessel 5 is about 1 t
  • the inventive method can be carried out with the melting unit 1 shown in the embodiment as follows:
  • a solid cast material in the form of solid cast iron is introduced through the inlet 12 into the furnace chamber 13 of the first furnace vessel 3.
  • the first fixed cast iron is through the
  • Induction coil 1 1 so energized that this melts and the melt sen a temperature of about 1. 120 ° C has.
  • melt formed accordingly is laused by opening the outlet 17 of the first furnace vessel 3 by means of the plug 19 from the outlet 17, so that the melt due to gravity through the inlet s 3 1 of the second furnace vessel 5 in the sen furnace chamber 27 flows.
  • the melt is energized by the induction coil 29 in such a way that the melt is heated to a temperature of about 1 .500 ° C.
  • the temperature of 1 .500 ° C corresponds to the casting temperature of the melt, so that s after reaching this temperature by opening the Auslass ses 33 of the second furnace vessel 5 by means of the plug 35 from the outlet s 33 flows into the distribution channel 37, from where the melt is fed to the molds of the Verg machine.
  • This cast material was obtained by the extended process according to the invention, wherein initially a melt of the casting material was prepared by melting raw materials into a melt of the casting material of a desired composition. The corresponding melt was then allowed to cool. The then formed, cold casting material was then provided to enter this Gus serkstoffes in the first furnace vessel available.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Furnace Details (AREA)

Abstract

L'invention concerne un équipement de fusion pour la fusion de matériaux de fonte, ainsi qu'un procédé de production d'une fonte pour le coulage.
EP15735928.2A 2014-07-21 2015-07-06 Équipement de fusion pour fusion de matériaux de fonte ainsi que procédé de production d'une fonte pour le coulage Withdrawn EP3171999A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014110251.7A DE102014110251A1 (de) 2014-07-21 2014-07-21 Schmelzaggregat zum Einschmelzen von Gusswerkstoffen sowie ein Verfahren zur Herstellung einer Schmelze für das Gießen
PCT/EP2015/065391 WO2016012225A1 (fr) 2014-07-21 2015-07-06 Équipement de fusion pour fusion de matériaux de fonte ainsi que procédé de production d'une fonte pour le coulage

Publications (1)

Publication Number Publication Date
EP3171999A1 true EP3171999A1 (fr) 2017-05-31

Family

ID=53539703

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EP15735928.2A Withdrawn EP3171999A1 (fr) 2014-07-21 2015-07-06 Équipement de fusion pour fusion de matériaux de fonte ainsi que procédé de production d'une fonte pour le coulage

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US (1) US20170113270A1 (fr)
EP (1) EP3171999A1 (fr)
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JP7043217B2 (ja) * 2016-12-13 2022-03-29 株式会社神戸製鋼所 活性金属の鋳造方法

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US20080267251A1 (en) * 2007-04-30 2008-10-30 Gerszewski Charles C Stacked induction furnace system

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WO2016012225A1 (fr) 2016-01-28
DE102014110251A1 (de) 2016-01-21
US20170113270A1 (en) 2017-04-27

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