INJECTION APPARATUS FOR GAS DISSOLVED RESIN AND INJECTION MOLDING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an injection apparatus having a novel structure preventing the clogging of a gas supply port caused by the penetration of a molten resin and capable of stably molding a resin molded article of target quality by efficiently bringing inert gas into contact with the molten resin. SOLUTION: A porous gas discharging member 92 is arranged to the outer peripheral surface of the screw 14 in a metering zone cut off from a resin storage part 52 by a check valve 44 at the time of injection operation and inert gas is supplied into a heating cylinder 12 through the gas discharging member 92.