Global Patent Index - EP 1086765 A1

EP 1086765 A1 2001-03-28 - Method for improving a magnesium pressure casting process

Title (en)

Method for improving a magnesium pressure casting process

Title (de)

Verfahren zur Verbesserung des Magnesium-Druckgussprozesses

Title (fr)

Procédé d'amélioration de la coulée sous pression de magnésium

Publication

EP 1086765 A1 (DE)

Application

EP 00120551 A

Priority

DE 19945461 A

Abstract (en)

Production of cast parts using a magnesium die casting process comprises coating the inner surface of a hollow mold having an opening with a separating agent which contains no hydrogen atoms. Preferred Features: The separating agent is a carbon material produced by burning a hydrocarbon gas, preferably acetylene, on the inner surface of the hollow mold. The separating agent may also be boron nitride.

Abstract (de)

Die Erfindung betrifft ein Verfahren zur Herstellung von Gußteilen mit einem Magnesium-Druckgußprozeß, wobei die Innenfläche einer mit einer Öffnung versehenen Hohlform mit einem Trennmittel beschichtet wird. Erfindungsgemäß werden Trennmittel ohne Wasserstoffatomanteil verwendet.

IPC 1-7 (main, further and additional classification)

B22D 17/20

IPC 8 full level (invention and additional information)

B22D 17/20 (2006.01)

CPC (invention and additional information)

B22D 17/2007 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1086765 A1 20010328; DE 19945461 A1 20010419

INPADOC legal status


2004-11-03 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040430

2004-02-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031219

2002-02-06 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: LINDE AG

2001-12-19 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-11-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010911

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-03-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI