EP 0073294 A2 19830309 - Method of manufacturing a shell mold.
Title (en)
Method of manufacturing a shell mold.
Title (de)
Verfahren zum Herstellen einer Schalenform.
Title (fr)
Procédé de fabrication d'un moule carapace.
Publication
Application
Priority
JP 13309681 A 19810825
Abstract (en)
The present application discloses a method of manufacturing a shell mold in which, with the peripheral portion of an elastic member in the sheet or film form adsorbed to a mold, a negative pressure is provided in a space between the mold and the elastic member, the elastic member is deformed by the outside pressure, molding material put on the elastic member is unflowingly compressed into a shell shape along the forming surface of the mold by the mold and the elastic member and is then solidified to produce a shell according to a suitable process in a cold or warm atmosphere, and the shell is taken out from the mold.
IPC 1-7
IPC 8 full level
B22C 9/02 (2006.01); B22C 13/08 (2006.01); B22C 15/08 (2006.01); B28B 3/00 (2006.01); B28B 7/34 (2006.01)
CPC (source: EP)
B22C 13/08 (2013.01); B28B 3/003 (2013.01); B28B 3/006 (2013.01); B28B 7/346 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0073294 A2 19830309; EP 0073294 A3 19830727; EP 0073294 B1 19860813; DE 3272547 D1 19860918; JP H0153143 B2 19891113; JP S5835041 A 19830301
DOCDB simple family (application)
EP 82104085 A 19820511; DE 3272547 T 19820511; JP 13309681 A 19810825