| 摘要 |
PROBLEM TO BE SOLVED: To charge a molten metal as even as possile by devising a position and a shape of a gate part when the molten metal is injected under a semi- molten condition or a molten condition near the melting point so as to obtain a metallic member having an opening inside. SOLUTION: By this injection molding device of a metallic member, a molten metal is injected and charged in a molding cavity Qw3 of a mold R3 from an injection nozzle 3 under a semi-molten condition or a molten condition near the melting point, so as to obtain a molding product having an opening inside. The injection position from the injection nozzle is set at a portion corresponding to the opening of the molding product, and an approximately annular gate part Qg3 is installed in a way to expand towards a surrounding molding cavity from the injection position.
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