METHOD FOR MANUFACTURING RESIN FOAMED MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a resin foamed molded product of which cost is reduced by simplifying and miniaturizing equipment by separating a vacuum device from a foaming mold when foam molding is performed under vacuum in order to reduce the density and weight of the resin foamed molded product. SOLUTION: In the method for manufacturing the resin foamed molded product by injecting a resin foamable stock solution 15 in the cavity 8 of the foaming mold 3 placed on a conveyor 1 to foam the same and curing the foamed one to demold the same, an exhaust duct 11 is arranged on a conveyor line 1 after the resin foamable stock solution is injected so as to cover the through-holes 5a provided to the upper part 5 of the moving mold and the gas in the cavity of the mold is sucked by the vacuum device 13 connected to the exhaust duct to evacuate the cavity. COPYRIGHT: (C)2004,JPO