Injection molding apparatus , an injection molding method and the injection screw for injection molding equipment

摘要

PROBLEM TO BE SOLVED: To provide an injection molding machine, capable of preventing remaining of resin in the groove or the like of an injection screw of the injection molding apparatus, and also capable of preventing the occurrence of the oxidation degradation of the resin, the back flow of a molten resin in a gas discharge port and clogging of the gas discharge port.;SOLUTION: The injection molding machine for heating and melting a resin to inject the melted resin into a mold for molding has a heating cylinder 10 for heating and melting the resin and the injection screw 12 having an inert gas discharge unit formed of a porous metal at least in part of the groove 22 and for injecting the heated and melted resin in the heating cylinder 10.;COPYRIGHT: (C)2012,JPO&INPIT