| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a W-Cu alloy sintered body excellent in mass-productivity by which a miniaturized W-Cu sintered body having a complicated shape can inexpensively be obtained while its high sintered body density and thermal conductivity are maintained. SOLUTION: W powder having <=40μm average grain size is kneaded with an organic binder, next, the obtd. kneaded substance is subjected to injection molding, then, the binder is removed from the obtd. injection molded body, thereafter it is sintered at 1400 to 1600 deg.C preferably in a hydrogen atmosphere, and the obtd. W sintered body is infiltrated with Cu at 1100 to 1300 deg.C preferably in a hydrogen atmosphere so as to regulate the content thereof to 5 to 30wt.% to the obtd. W-Cu alloy sintered body.
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