EP 0293960 A1 19881207 - Process and apparatus for metal casting.
Title (en)
Process and apparatus for metal casting.
Title (de)
Verfahren und Vorrichtung zum Metallgiessen.
Title (fr)
Procédé et dispositif pour la coulée du métal.
Publication
Application
Priority
GB 8712742 A 19870530
Abstract (en)
A process and apparatus are described for the production of cast components having reduced porosity levels. The process comprises the steps of at least partially melting a metal charge, pouring the melted metal into a mould (14) which is in a first chamber (11), withdrawing the filled mould (14) into a second chamber (30), isolating the second chamber (30) from the first chamber (10) with regard to pressure and then pressurising the second chamber with a fluid up to a maximum pressure of 7 MPa for at least part of the time required for solidification of the metal in the mould. The pressure is preferably applied within 40 seconds from the finish of pouring of the molten metal and more preferably within 20 seconds.
IPC 1-7
IPC 8 full level
B22D 27/13 (2006.01)
CPC (source: EP)
B22D 27/13 (2013.01)
Citation (search report)
- [XP] DE 3603310 A1 19870806 - LEYBOLD HERAEUS GMBH & CO KG [DE]
- [X] DE 3220744 A1 19831208 - LEYBOLD HERAEUS GMBH & CO KG [DE]
- [Y] GB 1356890 A 19740619 - LEYBOLD HERAEUS VERWALTUNG
- [X] FR 2255983 A1 19750725 - UNITED AIRCRAFT CORP [US]
- [Y] GB 2163684 A 19860305 - METALOZNANIE I TECHNOLOGIA NA
- [A] DE 1483645 A1 19690925 - SUEDWESTFALEN AG STAHLWERKE
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0293960 A1 19881207; EP 0293960 B1 19920826; DE 3873994 D1 19921001; DE 3873994 T2 19930408; GB 2206512 A 19890111; GB 2206512 B 19910619; GB 8712742 D0 19870701; GB 8810846 D0 19880608
DOCDB simple family (application)
EP 88200894 A 19880506; DE 3873994 T 19880506; GB 8712742 A 19870530; GB 8810846 A 19880506