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WO2007048260A1 - Procédé de coulée sous pression et dispositif de coulée sous pression - Google Patents

Procédé de coulée sous pression et dispositif de coulée sous pression Download PDF

Info

Publication number
WO2007048260A1
WO2007048260A1 PCT/CH2006/000562 CH2006000562W WO2007048260A1 WO 2007048260 A1 WO2007048260 A1 WO 2007048260A1 CH 2006000562 W CH2006000562 W CH 2006000562W WO 2007048260 A1 WO2007048260 A1 WO 2007048260A1
Authority
WO
WIPO (PCT)
Prior art keywords
casting
opening
casting chamber
filling
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.)
Ceased
Application number
PCT/CH2006/000562
Other languages
German (de)
English (en)
Inventor
Gilbert Moret
Bernhard Fritsche
Bernd Watzinger
Werner Hanselmann
Johannes Studer
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.)
Buehler Druckguss AG
Original Assignee
Buehler Druckguss AG
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
Priority claimed from DE102005051169A external-priority patent/DE102005051169A1/de
Application filed by Buehler Druckguss AG filed Critical Buehler Druckguss AG
Priority to CA002623158A priority Critical patent/CA2623158A1/fr
Priority to EP06790941A priority patent/EP1940573A1/fr
Priority to JP2008536899A priority patent/JP2009512558A/ja
Priority to US12/091,158 priority patent/US20090211724A1/en
Publication of WO2007048260A1 publication Critical patent/WO2007048260A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
    • B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels
    • B22D17/2281—Sprue channels closure devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/30—Accessories for supplying molten metal, e.g. in rations

Definitions

  • the invention relates to a method for diecasting, in particular for die casting of parts made of metal alloys, in particular of aluminum materials, magnesium or zinc materials and a device for die casting of such parts.
  • DE-A-4326325 discloses a method for selectively discharging a metallurgical vessel.
  • the vessel has a drain port in the bottom area, in which a part of the vessel contents is solidified, so that a plug is formed.
  • the thus closed drainage nozzle can be opened by causing the plug to melt.
  • the discharge nozzle is associated with an induction heater.
  • EP-B-1 165 274 discloses a die-casting mold, in particular for vacuum pressure casting, with a device for evacuating the mold cavity and the casting chamber, wherein a face opening of the casting chamber to the mold through a valve can be closed, wherein the valve has a throttle channel.
  • the casting chamber can be vented while the molten metal is already being moved in the direction of this opening.
  • the invention has for its object to develop a die casting, with which the cycle time for die cast parts of aluminum, magnesium or zinc materials or higher melting metals such as copper or steel per shot can be significantly reduced.
  • the object is achieved by the features of claims 1 or 2.
  • the casting chamber is partially or completely filled with melt, without interrupting the working cycle of the casting machine.
  • the casting chamber is preferably part of a horizontal cold chamber die casting machine.
  • the filling of the casting chamber can be done 100%.
  • the closure is formed by mechanically moving closure elements, in particular independently acting elements.
  • an opening of the casting chamber to the mold resp. formed to the sprue by a material closure is preferably a plug, which may also be disc-shaped from at least partially solidified material (casting material), the material being at a liquidus temperature has cooled. Before the next shot, this plug is to be at least partially melted, for which purpose the energy of the melt replenished in the casting chamber and / or a heating device is used.
  • a material closure is preferably a plug, which may also be disc-shaped from at least partially solidified material (casting material), the material being at a liquidus temperature has cooled. Before the next shot, this plug is to be at least partially melted, for which purpose the energy of the melt replenished in the casting chamber and / or a heating device is used.
  • the casting piston must stop at the current shot in front of the stopper to be formed.
  • the procedure contains the steps:
  • Another object is to provide a die casting apparatus which allows a significant reduction in the cycle time of a shot. This object is achieved with the features of claim 11.
  • the device is characterized in that an opening of a casting chamber of a die casting machine can be closed to a mold by means of a movable closure.
  • closure element could also be a "plug" of melt to be cast, and a closure in the form of a magnetic field is also possible.
  • the closure element is preferably located on the fixed mold half and at least partially closes the casting chamber with respect to the opening size.
  • the closure element can thus remain in this position when shooting, which also causes a time saving.
  • a flow front sensor according to DE-A-10011529 can be arranged to determine the degree of filling in the casting chamber. Likewise, an optimal starting point for a shot could be recalculated with the machine control, even with interrogation of a closing signal of the mold.
  • the closure element may be suitably coated and include heating or cooling.
  • non-productive time is the expiration time of an activity which is exempted from the cycle and performed in parallel with other activities without altering the process.
  • Fig. 1 Filling of the casting chamber and simultaneous closure of the mold
  • Fig. 2 Casting with closed slide
  • Fig. 3 Process Scheme.
  • a die casting machine has a casting chamber 4 with a filling opening 6 for molten metal and a casting piston 5.
  • the casting chamber 4 is fixed Mold half 1 connected, which in turn corresponds to a movable mold half 2.
  • the movable mold half 2 is moved in the direction of the arrow 7, the cavity 3 is formed.
  • a vertically movable slide 8 is arranged in front of an opening 9 of the casting chamber 4 to form.
  • the opening 9 is part of the sprue, the upper part of the slider 8 may be formed so that it forms the beginning of the sprue with.
  • the slide 8 can also completely close the opening 9.
  • the movable mold half is moved in the direction of the arrow 7 and the mold is closed. Shortly before the beginning of the filling process or at the latest with this, the slider 8 is moved upward to at least partially close the opening 9.
  • the casting piston 5 is moved in the direction of the opening 9 and the molten metal 10 is pressed into the cavity 3.
  • the dosage in the casting chamber 4 can be made from above or from below.
  • An opening for metering from above can also be used as a counter hole for venting the casting chamber 4 (reduction of counterpressure waves).
  • the mold can be vented.
  • a casting piston 5 opposite the frontal opening to a runner of the cavity 3 of a mold is completely sealed.
  • This sealing of the opening is achieved by a plug of the material to be cast.
  • This plug is formed by "excess" molten metal by the casting piston 5 is moved so far in the direction of the opening after a filling of the casting chamber 4, that the mold cavity is completely filled with molten metal and a Schmelzerest remains in the casting chamber 4 in front of the opening
  • the stopper when ancestor of the casting piston 5 is at least partially heated by means of a heater. wisely melted again. Possibly.
  • the heat of the molten metal can also be used.
  • the mold is opened and the slider 8 moves simultaneously (with the mold) down.
  • the casting piston 5 ejects the press rest and the mold is sprayed for the next shot.
  • the slider 8 may consist of different materials which are suitable for insulation, cooling or melt resistance.
  • the opening 9 during filling of the molten metal 10 also completely close and the opening 9 is only fully or partially opened for pressing the molten metal 10 (depending on the degree of filling of the casting chamber 4).
  • the slide 8 could also be arranged horizontally movable. Likewise, a valve-like design of the slide 8 is conceivable.
  • the slide 8 is displaced parallel to the opening 9 of the casting chamber 4, wherein the slide 8 can then be arranged even at an angle movable guide levers.
  • the slider may also include an opening for the passage of the melt.
  • the slider may further include an additional vent.
  • the solid mold half 1 may also contain ejectors or the like.
  • the closed casting chamber 4 can already be filled with the required amount of melt during a spraying process. To minimize air pockets hold, can be waited for a settling time after filling the casting chamber 4.
  • the casting piston 5 moves as far as from until the casting chamber 4 is filled to almost 100%.
  • said operations can be carried out in the open mold during the spraying in the off-peak time.
  • the cycle time is significantly reduced.
  • the slider 8 When opening the mold, the slider 8 can be kept closed to separate casting and tablet from each other. The solidification time of the tablet can thus also be shifted to the off-peak time.
  • the casting chamber 4 is also thermally insulated, its heat loss can also be reduced. Alternatively, the casting chamber could also be cooled.
  • Pre-solidification can be reduced and the casting quality can be increased.
  • the casting chamber 4 may consist of a steel, be coated with a ceramic material, be lined with a ceramic sleeve or consist entirely of ceramic or a metal matrix composite or a fully effetnitrator, powder metallurgy produced material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un procédé de coulée sous pression et un dispositif de coulée sous pression. Le but est un raccourcissement du temps de cycle et donc d’obtenir simultanément la fermeture de la forme et le remplissage de métal fondu dans une chambre de coulée (4).
PCT/CH2006/000562 2005-10-24 2006-10-11 Procédé de coulée sous pression et dispositif de coulée sous pression Ceased WO2007048260A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002623158A CA2623158A1 (fr) 2005-10-24 2006-10-11 Procede de coulee sous pression et dispositif de coulee sous pression
EP06790941A EP1940573A1 (fr) 2005-10-24 2006-10-11 Procédé de coulée sous pression et dispositif de coulée sous pression
JP2008536899A JP2009512558A (ja) 2005-10-24 2006-10-11 ダイカスト方法及びダイカスト装置
US12/091,158 US20090211724A1 (en) 2005-10-24 2006-10-11 Diecasting method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005051169A DE102005051169A1 (de) 2004-11-03 2005-10-24 Druckgießverfahren und Vorrichtung zum Druckgießen
DE102005051169.4 2005-10-25

Publications (1)

Publication Number Publication Date
WO2007048260A1 true WO2007048260A1 (fr) 2007-05-03

Family

ID=37461576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2006/000562 Ceased WO2007048260A1 (fr) 2005-10-24 2006-10-11 Procédé de coulée sous pression et dispositif de coulée sous pression

Country Status (7)

Country Link
US (1) US20090211724A1 (fr)
EP (1) EP1940573A1 (fr)
JP (1) JP2009512558A (fr)
KR (1) KR20080059563A (fr)
CN (1) CN101296769A (fr)
CA (1) CA2623158A1 (fr)
WO (1) WO2007048260A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111545724A (zh) * 2020-05-19 2020-08-18 金雅豪精密金属科技（深圳）股份有限公司 一种压铸成型的排气方法及使用该方法的排气机构

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101698228A (zh) * 2009-10-22 2010-04-28 苏州市永创金属科技有限公司 一种压铸模具
CN101700566B (zh) * 2009-11-25 2011-09-07 北京有色金属研究总院 流变压铸用压室及压铸方法
JP5754700B2 (ja) * 2010-10-07 2015-07-29 東芝機械株式会社 成形機
WO2013141866A1 (fr) * 2012-03-22 2013-09-26 Crucible Intellectual Property Llc Procédés et systèmes pour le piégeage de fond de poche
DE112014004304T5 (de) * 2013-09-19 2016-09-01 Magna International Inc. Hochdruckgussvorrichtung und Hochdruckgussverfahren
CN105499536B (zh) * 2015-12-24 2017-05-17 北京有色金属研究总院 用于流变压铸过程的浆料自动化输送装置及其工作方式
CN105880510A (zh) * 2016-04-27 2016-08-24 唐汇龙 压铸入料筒及该压铸入料筒的排气方法
CN107838392A (zh) * 2017-11-28 2018-03-27 湖南汉星机械制造有限公司 一种压铸系统
EP3827913A1 (fr) * 2019-11-29 2021-06-02 Heraeus Deutschland GmbH & Co KG Système de moulage par injection pour moulage par injection de métaux amorphes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH668014A5 (de) * 1984-07-26 1988-11-30 Mueller Weingarten Maschf Verfahren zum einfuellen der dosiermenge in eine druckgiessmaschine sowie druckgiessmaschine zur durchfuehrung des verfahrens.
WO1997021509A1 (fr) * 1995-12-12 1997-06-19 Thixomat, Inc. Appareil pour produire des pates metalliques thixotropes semi-solides
DE10039591A1 (de) * 2000-08-12 2002-02-21 Krauss Maffei Kunststofftech Verfahren und Vorrichtung zum Druckgießen von metallischen Formkörpern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH668014A5 (de) * 1984-07-26 1988-11-30 Mueller Weingarten Maschf Verfahren zum einfuellen der dosiermenge in eine druckgiessmaschine sowie druckgiessmaschine zur durchfuehrung des verfahrens.
WO1997021509A1 (fr) * 1995-12-12 1997-06-19 Thixomat, Inc. Appareil pour produire des pates metalliques thixotropes semi-solides
DE10039591A1 (de) * 2000-08-12 2002-02-21 Krauss Maffei Kunststofftech Verfahren und Vorrichtung zum Druckgießen von metallischen Formkörpern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111545724A (zh) * 2020-05-19 2020-08-18 金雅豪精密金属科技（深圳）股份有限公司 一种压铸成型的排气方法及使用该方法的排气机构

Also Published As

Publication number Publication date
JP2009512558A (ja) 2009-03-26
KR20080059563A (ko) 2008-06-30
CN101296769A (zh) 2008-10-29
US20090211724A1 (en) 2009-08-27
CA2623158A1 (fr) 2007-05-03
EP1940573A1 (fr) 2008-07-09

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