MOLD FOR FOAM MOLDING OF THERMOPLASTIC RESIN AND MOLDING METHOD USING THE MOLD

摘要

PROBLEM TO BE SOLVED: To relatively inexpensively provide a mold for in-mold foam molding of thermoplastic resin prefoamed particles, for reducing quality irregularity such as the lowering of the filling density or surface properties of the outer edge part with respect to the central part of a product generated in a conventional compression filling molding method to mold a molded article having uniform quality. SOLUTION: In the mold for the in-mold foam molding of thermoplastic resin prefoamed particles, an air hole communicating with the back surface of the mold or a vapor chamber is provided to a mold registering joint part or the space part between molds along with the core vent or core vent hole formed to the surface of the mold to also perform service exhaustion from a parting part. COPYRIGHT: (C)2004,JPO