EP 0793554 B1 20000223 - METHOD OF PRODUCING LIGHT METAL CASTINGS AND CASTING MOULD FOR CARRYING OUT THE METHOD
Title (en)
METHOD OF PRODUCING LIGHT METAL CASTINGS AND CASTING MOULD FOR CARRYING OUT THE METHOD
Title (de)
VERFAHREN ZUM HERSTELLEN VON GUSSSTÜCKEN AUS LEICHTMETALL UND GIESSFORM ZUR DURCHFÜHRUNG DES VERFAHRENS
Title (fr)
PROCEDE DE PRODUCTION DE PIECES COULEES EN METAL LEGER ET MOULE APPROPRIE POUR METTRE LEDIT PROCEDE EN OEUVRE
Publication
Application
Priority
- DE 19531551 A 19950828
- EP 9603691 W 19960822
Abstract (en)
[origin: DE19531551A1] The invention concerns a method of producing light metal castings, in particular cylinder heads, cylinder blocks and/or crankcases for internal combustion engines, using a sand-based dead mould which forms a moulding cavity (2) for the casting. The casting mould comprises outer parts (3), at least one core (7) and at least one pressure pig-forming feeder. The casting mould is provided with a gate for molten metal which fills the mould cavity (2) under the effect of gravity. A covering core (5), which comprises at least one feeder (6) and is impermeable to gases at least in partial areas, is placed on the casting mould. Immediately after the filling operation, the feeder (6) filled with molten metal is subjected to pressure by a pressurized gas.
IPC 1-7
IPC 8 full level
B22C 9/08 (2006.01); B22D 27/09 (2006.01); B22D 27/13 (2006.01)
CPC (source: EP US)
B22C 9/082 (2013.01 - EP US); B22D 27/09 (2013.01 - EP US)
Citation (examination)
- JP H03142056 A 19910617 - ASAHI TEC CORP
- JP S6152978 A 19860315 - DAIDO STEEL CO LTD
Designated contracting state (EPC)
AT DE ES FR GB IT
DOCDB simple family (publication)
US 5954113 A 19990921; AT E189867 T1 20000315; CN 1164837 A 19971112; DE 19531551 A1 19970306; DE 59604490 D1 20000330; EP 0793554 A1 19970910; EP 0793554 B1 20000223; ES 2146016 T3 20000716; WO 9707914 A1 19970306
DOCDB simple family (application)
US 81798097 A 19970425; AT 96930074 T 19960822; CN 96190969 A 19960822; DE 19531551 A 19950828; DE 59604490 T 19960822; EP 9603691 W 19960822; EP 96930074 A 19960822; ES 96930074 T 19960822