METHOD FOR MANUFACTURING INJECTION-MOLDED BODY, METHOD FOR MANUFACTURING SINTERED BODY, INJECTION-MOLDED BODY, AND SINTERED BODY

摘要

PROBLEM TO BE SOLVED: To improve strength of a sintered body when an injection-molded body and its sintered body are obtained by an injection molding method utilizing a gel forming substance.

SOLUTION: A raw material for injection molding comprising a mixture comprising a powder for molding, the gel forming substance and a solvent is injection-molded under a molten state to manufacture the injection-molded body 21. This injection-molded body 21 is sintered. The strength of the sintered body is remarkably improved by making a ratio of unmelted parts 23 in the injection-molded body 21 at most 0.2%.

COPYRIGHT: (C)2003,JPO