| 摘要 |
A control method of injection molding includes the steps of: filling molten resin in an injection molding die by velocity control until a detection value of a filling pressure of the molten resin reaches a first set pressure value; filling the molten resin by switching control from the velocity control to pressure control by which the control is performed at the first set pressure value at a time point when the detection value of the filling pressure reaches or exceeds the first set pressure value; and switching the control to holding pressure control by which the control is performed at a second set pressure value at a time point when the filling velocity drops to or below a set velocity while filling is performed by the pressure control.
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