EP0805725A1 - Verfahren und vorrichtung zum pressgissen - Google Patents

Verfahren und vorrichtung zum pressgissen

Info

Publication number: EP0805725A1
Authority: EP; European Patent Office
Prior art keywords: mould cavity; metal; mould; molten metal; die
Prior art date: 1995-01-23
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.): Granted

Application number

EP96900650A

Other languages

English (en)

French (fr)

Other versions

EP0805725B1 (de

Inventor

Geoffrey Allan Chadwick

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.)

Papervision Ltd

Original Assignee

Hi Tec Metals Ltd

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.)

1995-01-23

Filing date

1996-01-23

Publication date

1997-11-12

1996-01-23 Application filed by Hi Tec Metals Ltd filed Critical Hi Tec Metals Ltd

1997-11-12 Publication of EP0805725A1 publication Critical patent/EP0805725A1/de

2000-10-04 Application granted granted Critical

2000-10-04 Publication of EP0805725B1 publication Critical patent/EP0805725B1/de

2016-01-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging

Definitions

indirect squeeze casting processes use a closed die to define the casting cavity. Opposing die halves are locked together rigidly by hydraulic cylinders and large toggles during the injection of metal from the shot sleeve and during the metal pressurisation period from the plunger. The only moving part of the equipment during casting is the plunger, which moves to inject metal into the fixed volume die cavity. Side cores may be used in the die to increase the complexity of the casting shape. Although the external form of the cast article may be accurately controlled, indirect squeeze castings may not be one hundred percent dense due to the presence of microporosity, particularly in regions of the casting remote from the plunger.
the lower die part is encased in a steel bolster.
Metering of the correct amount of liquid metal into the mould is effected through having the top half of the die 6 situated within the lower half of the die 5 so defining the mould cavity 11 but raised on, preferably adjustable, compressible separators 19 by an amount which just compensates for the volume contraction of the liquid metal on solidification and compaction by the squeezing forces of the hydraulic press 1.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Molds, Cores, And Manufacturing Methods Thereof (AREA)

EP96900650A 1995-01-23 1996-01-23 Verfahren und vorrichtung zum pressgissen Expired - Lifetime EP0805725B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
GBGB9501261.3A GB9501261D0 (en)	1995-01-23	1995-01-23	Apparatus and method for squeeze casting
GB9501261		1995-01-23
PCT/GB1996/000137 WO1996022851A1 (en)	1995-01-23	1996-01-23	Apparatus and method for squeeze casting

Publications (2)

Publication Number	Publication Date
EP0805725A1 true EP0805725A1 (de)	1997-11-12
EP0805725B1 EP0805725B1 (de)	2000-10-04

Family

ID=10768406

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96900650A Expired - Lifetime EP0805725B1 (de)	1995-01-23	1996-01-23	Verfahren und vorrichtung zum pressgissen

Country Status (7)

Country	Link
EP (1)	EP0805725B1 (de)
JP (1)	JPH10512811A (de)
AU (1)	AU708985B2 (de)
CA (1)	CA2211140A1 (de)
DE (1)	DE69610550T2 (de)
GB (1)	GB9501261D0 (de)
WO (1)	WO1996022851A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8899624B2 (en)	2005-05-19	2014-12-02	Magna International Inc.	Controlled pressure casting
US8496258B2 (en)	2003-10-20	2013-07-30	Magna International Inc.	Hybrid component
CA2608168C (en) *	2005-05-19	2014-08-12	Magna International Inc.	Controlled pressure casting
DE102005025768A1 (de) *	2005-06-04	2006-12-07	Almecon Entwicklungs-, Beratungs- Und Beschaffungsgesellschaft Mbh	Verfahren zur Herstellung von Formteilen aus Metall mittels einer Pressvorrichtung und Pressvorrichtung zur Durchführung des Verfahrens
DE102008027682B4 (de) *	2008-06-10	2011-03-17	Eduard Heidt	Verfahren zum Herstellen von dünnwandigen und hochfesten Bauteilen
DE102008054718B4 (de) *	2008-12-16	2012-11-22	Federal-Mogul Nürnberg GmbH	Gießform für den Schwerkraftguss und Schwerkraftgießverfahren
DE102016123496A1 (de) *	2016-12-05	2018-06-07	Schuler Pressen Gmbh	Werkzeug zum Gießen und/oder Umformen eines Formteils, Gießvorrichtung, Presse und Verfahren zum Kompensieren einer thermischen Belastung eines Formteils
DE102016123491B4 (de) *	2016-12-05	2019-12-24	Schuler Pressen Gmbh	Gießvorrichtung, Presse und Verfahren zum Gießen eines Bauteils
DE102016123495A1 (de)	2016-12-05	2018-06-07	Schuler Pressen Gmbh	Werkzeug zum Gießen und/oder Umformen eines Bauteils, Gießvorrichtung, Presse und Verfahren zur Spaltkompensation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2255738A (en) *	1991-05-16	1992-11-18	Frys Metals Ltd	Dispensing molten metal for casting
JPH06210426A (ja) *	1992-03-04	1994-08-02	Mitsubishi Electric Corp	鋳物の製造方法及び製造装置

1995
- 1995-01-23 GB GBGB9501261.3A patent/GB9501261D0/en active Pending
1996
- 1996-01-23 AU AU44552/96A patent/AU708985B2/en not_active Ceased
- 1996-01-23 JP JP8522716A patent/JPH10512811A/ja active Pending
- 1996-01-23 EP EP96900650A patent/EP0805725B1/de not_active Expired - Lifetime
- 1996-01-23 DE DE69610550T patent/DE69610550T2/de not_active Expired - Fee Related
- 1996-01-23 CA CA 2211140 patent/CA2211140A1/en not_active Abandoned
- 1996-01-23 WO PCT/GB1996/000137 patent/WO1996022851A1/en active IP Right Grant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9622851A1 *

Also Published As

Publication number	Publication date
EP0805725B1 (de)	2000-10-04
DE69610550T2 (de)	2001-05-10
GB9501261D0 (en)	1995-03-15
JPH10512811A (ja)	1998-12-08
AU708985B2 (en)	1999-08-19
DE69610550D1 (de)	2000-11-09
AU4455296A (en)	1996-08-14
CA2211140A1 (en)	1996-08-01
WO1996022851A1 (en)	1996-08-01

Legal Events

Date	Code	Title	Description
1997-09-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1997-11-12	17P	Request for examination filed	Effective date: 19970821
1997-11-12	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): CH DE DK ES FR GB IT LI SE
1998-01-14	17Q	First examination report despatched	Effective date: 19971126
1998-12-17	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1999-09-15	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: PAPERVISION LIMITED
1999-10-18	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1999-10-27	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2000-02-17	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2000-08-18	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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2000-12-28	ITF	It: translation for a ep patent filed	Owner name: INTERPATENT ST.TECN. BREV.
2001-01-04	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20010104 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20010104
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Publication	Publication Date	Title
US5908065A (en)	1999-06-01	Apparatus and method for squeeze casting
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