| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding die for metallic powder injection molding (MIM) which adopts a submarine system dispensing with gate treatment, and a metallic powder injection molding method. SOLUTION: In the submarine system molding die for metallic powder injection molding, a rotary top constituting the back surface of the submarine gate in the injection and supporting the submarine gate at the lower part after the injection and being turned to release the submarine gate to evade the part of the molding die is provided. In the submarine system molding method for metallic powder injection molding, the submarine gate is released to evade the part of the molding die by allowing the rotary top to form the back surface of the submarine gate in the injection, supporting the back surface of the submarine gate at the lower part after injection and turning.
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