| 摘要 |
PROBLEM TO BE SOLVED: To obtain a foamed injection-molded product not generating a problem from an aspect of appearance such that large air bubbles are generated and a large number of foamed parts appear on the surface of the product. SOLUTION: In a mold for obtaining the foamed injection-molded product by injection-molding a resin composition prepared by impregnating a resin with a foaming agent in a supercritical state, the effective diameter Lm of a sprue excepting a gate and a runner satisfies the formula: Ln<=Lm<=Ln×1.7 (wherein, Ln is the nozzle diameter of an injection molding machine unit). |
