PRESSURE CONTROL METHOD OF INJECTION MOLDING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a pressure control method of an injection molding machine capable of preventing the occurrence of dripping or a flow mark and not causing voids (bubbles) or jetting (or silver streams). SOLUTION: In the control method of the injection molding machine for injecting a plasticized molding material in a mold 4 by a plunger 21, low pressure control for holding the pressure in a storage part 2C for allowing a next molding material to stand by to a preset pressure value or below is performed in a process for allowing the next molding material after metering to stand by during a period from the cooling of the molded product in the mold 4 to the taking-out of the molded product after mold opening. COPYRIGHT: (C)2005,JPO&NCIPI