EP 0461052 A1 19911211 - Lost foam low-pressure casting of aluminium-alloy pieces.
Title (en)
Lost foam low-pressure casting of aluminium-alloy pieces.
Title (de)
Niederdruck-Vollformgiessverfahren von Gegenstände aus Aluminiumlegierung.
Title (fr)
Procédé de moulage à mousse perdue et sous basse pression de pièces en alliage d'aluminium.
Publication
Application
Priority
FR 9007736 A 19900607
Abstract (en)
The invention relates to lost-foam casting of metal pieces, particularly from aluminium alloy. <??>It relates to aluminium-alloy pieces having a wide solidification range (gap) and having a high ratio of length to modulus over the path between the point where the contraction cavity forms and the riser (feeder) and consists in applying a gaseous pressure to the mould of between 0.1 and 0.5 MPa. <??>It permits the production, in particular, of motor-vehicle cylinder heads having no pinholes (pitting) or porous (spongy) contraction cavity, and of all pieces with high-performance mechanical properties. <IMAGE>
IPC 1-7
IPC 8 full level
B22D 18/00 (2006.01); B22C 9/04 (2006.01); B22C 9/08 (2006.01); B22D 27/13 (2006.01); C22C 21/00 (2006.01)
CPC (source: EP KR US)
B22C 9/046 (2013.01 - EP US); B22C 9/08 (2013.01 - EP US); B22D 18/04 (2013.01 - KR); B22D 27/13 (2013.01 - EP US)
Citation (search report)
- [A] EP 0274964 A1 19880720 - PECHINEY ALUMINIUM [FR]
- [A] FR 887120 A 19431104 - SILUMIN GES M B H
Designated contracting state (EPC)
AT BE CH DE DK ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0461052 A1 19911211; EP 0461052 B1 19940727; AT E109046 T1 19940815; AU 632935 B2 19930114; AU 7607391 A 19911212; BG 94584 A 19931224; BR 9102233 A 19920107; CA 2041682 A1 19911208; CA 2041682 C 19960116; CN 1021304 C 19930623; CN 1057981 A 19920122; CS 173091 A3 19920219; DE 69103095 D1 19940901; DE 69103095 T2 19941117; ES 2056608 T3 19941001; FI 912724 A0 19910606; FI 912724 A 19911208; HU 208270 B 19930928; HU T57108 A 19911128; IE 911935 A1 19911218; JP H04251633 A 19920908; JP H0732947 B2 19950412; KR 920000413 A 19920129; MX 171021 B 19930924; NO 911985 D0 19910523; NO 911985 L 19911209; PL 290532 A1 19911216; PT 97874 A 19930831; RU 1838042 C 19930830; US 5161595 A 19921110; YU 47535 B 19951003; YU 99691 A 19940610
DOCDB simple family (application)
EP 91420178 A 19910605; AT 91420178 T 19910605; AU 7607391 A 19910429; BG 9458491 A 19910606; BR 9102233 A 19910531; CA 2041682 A 19910502; CN 91104632 A 19910607; CS 173091 A 19910606; DE 69103095 T 19910605; ES 91420178 T 19910605; FI 912724 A 19910606; HU 149491 A 19910503; IE 193591 A 19910606; JP 23368691 A 19910607; KR 910009442 A 19910605; MX 2591691 A 19910524; NO 911985 A 19910523; PL 29053291 A 19910604; PT 9787491 A 19910605; SU 4895536 A 19910606; US 69064591 A 19910424; YU 99691 A 19910605