| 摘要 |
PROBLEM TO BE SOLVED: To increase the toughness of a spray deposit of a molding die used for plastic working of metals, injection molding of resin/metal, powder molding of ceramics/metal, or the like, and to prolong the life of the molding die. SOLUTION: The spray deposit is formed on the molding die by thermally spraying the surface of the molding die with a thermal spraying material composed of carbides and metals or alloys thereof. The spray deposit has a mixed structure of a phase of a carbide cermet composed of one or more carbides selected from WC, Cr<SB>3</SB>C<SB>2</SB>, B<SB>4</SB>C, TiC, ZrC and NbC and one or more metals selected from Ni, Cr, Co and Mo or an alloy thereof and a phase of one or more metals selected from Ni, Cr, Co and Mo or an alloy thereof. COPYRIGHT: (C)2004,JPO
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