| 摘要 |
PROBLEM TO BE SOLVED: To realize a metal composite sintered compact having high joining strength and satisfactory joint since it has not been realized by the separation in the joining faces on sintering in the metal composite sintered compact having both of hard and soft functions though, in metal powder injection molding, sintering and joining are simultaneously performed, and the production of the metal composite sintered compact consisting of a plurality of materials is tried. SOLUTION: As the result of considering that the separation in the joining faces on sintering is caused because, between a molding comprising hard metal powder and a molding comprising soft metal powder, the respective optimum sintering temperatures and the respective shrinkage behavior are different, and investigating the combination in which the optimum sintering temperatures and shrinkage behavior on sintering in both the hard and soft metals are similar, the fact that the combination between SUS3420J2 as the hard metal and SUS316L as the soft metal is optimum is found. The metal composite sintered compact having both the functions of the hard and soft metals having high joining strength and satisfactory joined can be realized by the combination. COPYRIGHT: (C)2005,JPO&NCIPI
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