INJECTION MOLD APPARATUS AND MANUFACTURE OF RESIN MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a mold apparatus for injection molding or injection compression molding for improving the transferability of the surface shape of a molding and a method for injection molding. SOLUTION: This mold apparatus comprises a metal layer formed on the cavity surface of an injection mold via a heat insulator layer. The thickness of the metal layer is 0.1 to 5mm, the thermal conductivity of the heat insulator is 1.0×10<-4> to 9.0×10<-4> cal/sec.cm.degree and the thickness of the insulator layer is 10 to 130μm in the mold apparatus. This method for manufacturing a resin molding is one whereby the molding is obtained by injection molding or injection compression molding resin by using the apparatus.