US20030173053A1 - Device for producing castings that comprises a wall can be guided into the casting mold - Google Patents

Device for producing castings that comprises a wall can be guided into the casting mold Download PDF

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Publication number
US20030173053A1
US20030173053A1 US10/070,565 US7056502A US2003173053A1 US 20030173053 A1 US20030173053 A1 US 20030173053A1 US 7056502 A US7056502 A US 7056502A US 2003173053 A1 US2003173053 A1 US 2003173053A1
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US
United States
Prior art keywords
mold
chamber
movable
walls
wall
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.)
Abandoned
Application number
US10/070,565
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English (en)
Inventor
Christian Boehnke
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.)
Ing Walter Hengst GmbH and Co KG
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
Assigned to ING. WALTER HENGST GMBH & CO. KG reassignment ING. WALTER HENGST GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOEHNKE, CHRISTIAN
Publication of US20030173053A1 publication Critical patent/US20030173053A1/en
Abandoned legal-status Critical Current

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    • 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
    • B22D17/2015—Means for forcing the molten metal into the die
    • 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
    • B22D17/007—Semi-solid pressure die casting

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • European Patent 1 046 444 A1 discloses a device of this type according to the species.
  • Three pistons are used to create a variable-volume chamber for the injection material.
  • two pistons are axially movable within a tubular cavity, and a third piston can be moved perpendicularly to the longitudinal axis of the chamber between the two above-mentioned pistons so as to convey the material into the mold cavity.
  • the requirement here is that there be a precise seal between the three pistons relative to one another and to the chamber. Because of the space requirement and the demands on the seal, the device according to the species is very expensive to produce.
  • German Patent 43 10 755 A1 describes a device in which two walls, one designed as a nondriven movable clamping disk and the other as a driven piston, are axially movable within a tubular cavity. They adjoin a runner through which the injection material enters the actual mold cavity.
  • the goal of the present invention is to improve a device according to the species so that it is as efficient as possible, has compact dimensions, and can be operated as inexpensively as possible.
  • the invention proposes an approach in which the movable chamber walls are located not exclusively outside the mold but are disposed to allow displacement of the chamber contents into the mold.
  • This approach results in a savings in material since the sprue can be avoided or considerably reduced.
  • a reduction can be made in the quantity of material in circulation which must be re-cooled and re-melted for each cycle, with the possible ensuing melting loss in expensive alloy elements, this melting loss having to be continually replaced.
  • One of the two movable walls of the injection unit chamber may be advantageously designed as the section of the wall of the mold cavity which is designed to be movable for the purpose of opening the mold. This approach avoids complex multi-axial movements and ensures that, when the mold is opened, this injection unit wall, which is movable into the casting mold, is moved together with the section of the mold to he opened—thereby allowing the access to the casting when the mold is opened to remain unchanged and allowing optimal access to the casting for its removal.
  • Reference 1 in FIG. 1 designates a device for producing castings in a pressure die-casting process.
  • a conveying unit 4 conveys the molten or at least partially molten material into a chamber 5 of injection unit 3 .
  • the chamber walls are formed by a round tube 6 , an injection piston 7 , and a sealing piston 8 .
  • the volume of chamber 5 is comparatively small.
  • the chamber volume can be kept to an extreme minimum by moving the two pistons 7 and 8 very close together. There is assurance at all times that even oxidation-prone material can be readily processed since any contact with ambient air is essentially precluded.
  • the material is conveyed by conveying unit 4 into chamber 5 , while sealing piston 8 is increasingly moved away from injection piston 7 to adjust for the quantity of admitted material, as FIG. 2 shows.
  • FIG. 2 shows injection unit 3 in an end phase of filling when injection unit 3 is essentially filled with the casting material.
  • the volume of chamber 5 has increased accordingly, and injection piston 7 continues to be situated at a position in which the access for conveying unit 4 into chamber 5 is open.
  • Sealing piston 8 is moved out of tube 6 and into mold 2 . This action opens tube 6 and thus, chamber 5 . A further movement of injection piston 7 causes the material to be injected from chamber 5 into mold 2 .
  • mold 2 is open.
  • mold 2 consists of a fixed mold section 10 and another movable mold section 11 .
  • Sealing piston 8 is supported within the movable mold section 11 and is movable together with or separately from movable mold section 11 such that, after mold 2 is opened, the casting can be removed easily and with the same accessibility as with a conventional injection unit in which all the components are located outside mold 2 .
  • mold 2 is closed, i.e., the movable section 11 is moved completely against fixed mold section 10 after which the backplates of mold 2 are locked so that it is ready to receive the injection pressures.
  • sealing piston 8 is allowed to rest against movable mold section 11 during the injection procedure—with the result that, advantageously, no expensive and design-specific provision has to be made in terms of a separate support for sealing piston 8 since the injection pressures acting on sealing piston 8 are accommodated by mold 2 or its backplates.
  • chamber 5 is displaced by a movement of the same direction and speed effected by pistons 7 and 8 until chamber 5 is situated in front of the opening of conveying unit 4 so that a new operating cycle can take place.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
US10/070,565 2000-07-07 2001-06-30 Device for producing castings that comprises a wall can be guided into the casting mold Abandoned US20030173053A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033166.1 2000-07-07
DE10033166A DE10033166A1 (de) 2000-07-07 2000-07-07 Vorrichtung zum Herstellen von Gußstücken, mit in die Gießform führbarer Wandung

Publications (1)

Publication Number Publication Date
US20030173053A1 true US20030173053A1 (en) 2003-09-18

Family

ID=7648201

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/070,565 Abandoned US20030173053A1 (en) 2000-07-07 2001-06-30 Device for producing castings that comprises a wall can be guided into the casting mold

Country Status (8)

Country Link
US (1) US20030173053A1 (de)
EP (1) EP1301301A1 (de)
JP (1) JP2004502549A (de)
KR (1) KR20020064281A (de)
BR (1) BR0106937A (de)
DE (1) DE10033166A1 (de)
TW (1) TW558467B (de)
WO (1) WO2002004147A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050279479A1 (en) * 2004-06-17 2005-12-22 Qingyou Han Method and apparatus for semi-solid material processing
US20070170103A1 (en) * 2006-01-25 2007-07-26 Baldwin Filters, Inc. Fluid filter
JP2013071156A (ja) * 2011-09-28 2013-04-22 Ube Machinery Corporation Ltd 射出成形装置及び射出成形方法
CN116851700A (zh) * 2023-07-06 2023-10-10 东莞汇鸿鑫精密机械有限公司 一种铝合金压铸结构部件成型模具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102445096B1 (ko) 2022-04-06 2022-09-20 주식회사 처음부터재테크 컴퓨터의 성능 업그레이드를 위한 디스크 착탈 장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611387A (en) * 1992-07-23 1997-03-18 Hi-Tec Metals Limited Moulding device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH661883A5 (en) * 1982-10-20 1987-08-31 Inst Po Metalloznanie I Tekno Submerged-plunger (hot-chamber piston) die-casting method and a machine for carrying out the method
FR2665654B1 (fr) * 1990-08-09 1994-06-24 Armines Machine de coulee sous pression d'un alliage metallique a l'etat thixotropique.
DE4310755C2 (de) * 1993-04-01 1996-04-25 Druckgusswerk Moessner Gmbh We Druckgießvorrichtung
CH690753A5 (de) * 1996-10-29 2001-01-15 Buehler Ag Patentabteilung Vorrichtung und Verfahren zum Verarbeiten Thixotropen Metalls.
DE19914830A1 (de) * 1999-04-01 2000-10-05 Buehler Druckguss Ag Uzwil Verfahren zum Vakuum-Druckgiessen und Druckgiessform
EP1046444B1 (de) * 1999-04-20 2002-03-06 Ritter Aluminium Giesserei Gmbh Druckgiessverfahren

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611387A (en) * 1992-07-23 1997-03-18 Hi-Tec Metals Limited Moulding device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050279479A1 (en) * 2004-06-17 2005-12-22 Qingyou Han Method and apparatus for semi-solid material processing
US7216690B2 (en) * 2004-06-17 2007-05-15 Ut-Battelle Llc Method and apparatus for semi-solid material processing
US20070187060A1 (en) * 2004-06-17 2007-08-16 Qingyou Han Method and apparatus for semi-solid material processing
US7493934B2 (en) 2004-06-17 2009-02-24 Ut-Battelle, Llc Method and apparatus for semi-solid material processing
US7621315B2 (en) 2004-06-17 2009-11-24 Ut-Battelle, Llc Method and apparatus for semi-solid material processing
US20070170103A1 (en) * 2006-01-25 2007-07-26 Baldwin Filters, Inc. Fluid filter
US7897046B2 (en) 2006-01-25 2011-03-01 Baldwin Filters, Inc. Fluid filter
JP2013071156A (ja) * 2011-09-28 2013-04-22 Ube Machinery Corporation Ltd 射出成形装置及び射出成形方法
CN116851700A (zh) * 2023-07-06 2023-10-10 东莞汇鸿鑫精密机械有限公司 一种铝合金压铸结构部件成型模具

Also Published As

Publication number Publication date
EP1301301A1 (de) 2003-04-16
KR20020064281A (ko) 2002-08-07
JP2004502549A (ja) 2004-01-29
DE10033166A1 (de) 2002-01-24
WO2002004147A1 (de) 2002-01-17
TW558467B (en) 2003-10-21
BR0106937A (pt) 2002-05-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ING. WALTER HENGST GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOEHNKE, CHRISTIAN;REEL/FRAME:013087/0470

Effective date: 20020515

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION