MOLD FOR INJECTION MOLDING

摘要

PROBLEM TO BE SOLVED: To obtain a molded article with few burrs by ensuring strength of a mold and holding flatness of a cavity face in a mold for injection molding for a thermosetting resin. SOLUTION: By enlarging size of a plate 7 for a manifold to the same size as that of a cavity mold plate 8 and discontinuing a spacer block and an air insulation layer which are provided on the outer periphery of the manifold in the conventional apparatus and arranging a heat insulation plate 11 on the whole face receiving molding pressure, strength of a mold is improved and difference in thermal expansion caused by difference in structure in the mold is eliminated to hold flatness of the cavity face and to obtain a molded article with few flash.