METHOD AND DEVICE FOR INJECTION MOLDING OF METALLIC MOLDING PRODUCTS
Document Type and Number:
Japanese Patent JP3546154
PROBLEM TO BE SOLVED: To provide an injection molding method of a metallic molding product, wherein an injection molding device is compact, inexpensive, and superior in dimension and weight accuracy, and metallic molding products can be molded safely under a good working circumstance at low costs.
SOLUTION: Such an injection molding device is used which is equipped with an injection plunger 10, a molten metal supplying valve 20 and a compression plunger 30 in an injection cylinder 1. A metallic raw material KG is supplied into the injection cylinder 1, and is dissolved by the heat applied from a heater under a condition that it is compressed by the compression plunger 30 in the injection cylinder 1. The metallic raw material KY dissolved by the compression plunger 30 is pressure-transferred to a measuring chamber K through the molten metal supplying valve 20. Then, a reverse flow is avoided by the molten metal supplying valve 20, and injected to molds 40, 41 by the injection plunger 10.
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