Metal mold having a ceramic coating for forming sintered part

Details Metal mold having a ceramic coating for forming sintered part Metal mold having a ceramic coating for forming sintered part

1990-08-13

1992-03-03

Housel, James C.

Static molds

Including coating or adherent layer

249135, 264338, 427135, B22F 300, B29C 3356

Patent

active

050925580

ABSTRACT:
Ceramic coated metal mold having a constant ceramic film thickness, which is superior in adhesion resistance and abrasion resistance, prepared by coating the inside and outside walls of a metal mold with ceramics, by the physical vapor deposition method. The ceramic coating is selected from one of TiC, TiN, and TiCN. The mold surfaces to which the coating is applied has a surface roughness of 1 S or less and the end corners have a radius R of 0.1-0.3 mm, to provide adhesion between the metal mold and the ceramic coating.

REFERENCES:
patent: 4120930 (1978-10-01), Lemelson
patent: 4142888 (1979-03-01), Rozmus
patent: 4546951 (1985-10-01), Boschman
patent: 4721518 (1988-01-01), Monji et al.

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