EP 0020373 B1 19830608 - METHOD OF MAKING AND USING A CERAMIC SHELL MOLD
Title (en)
METHOD OF MAKING AND USING A CERAMIC SHELL MOLD
Publication
Application
Priority
- EP 79900983 A 19781204
- US 7800187 W 19781204
Abstract (en)
[origin: WO8001146A1] A method of making a shell mold (6) includes alternately applying a ceramic coating composition (8) and a stucco composition (10) to an expendable pattern, the presence of graphite being substantially avoided therein, and applying a barrier coating (16) thereto including a ceramic powder, a binder, and a preselected amount of graphite. A preferred range of graphite of about 13 to 17 Wt.% in the barrier coating (16) minimizes decarburization of a ferrous article formed in the cavity of the shell mold (6).
IPC 1-7
IPC 8 full level
B22C 1/04 (2006.01); B22C 1/16 (2006.01); B22C 3/00 (2006.01); B22C 9/00 (2006.01); B22C 9/04 (2006.01); C04B 35/00 (2006.01)
CPC (source: EP)
B22C 1/165 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8001146 A1 19800612; CA 1119771 A 19820316; DE 2862282 D1 19830714; EP 0020373 A1 19810107; EP 0020373 A4 19800929; EP 0020373 B1 19830608; JP S55500934 A 19801113
DOCDB simple family (application)
US 7800187 W 19781204; CA 336269 A 19790925; DE 2862282 T 19781204; EP 79900983 A 19781204; JP 50131178 A 19781204