| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding method and an injection molding apparatus, in each of which a silver fault and a gate cut fault in an injection-molded article of a resin are prevented.SOLUTION: The injection molding apparatus, in which the molten resin is injected into a cavity 13 through a gate 14 and gate-cut by a valve pin 44, includes: a temperature detection means 46 for detecting the temperature of the valve pin 44; and a control means for controlling the temperature of the molten resin or a flow rate of the molten resin when passing through the gate. The temperature detection means 46 comprises a thermocouple buried in the valve pin 44. The temperature or the flow rate of the molten resin when passing through the gate 14 is controlled so that the valve pin 44 is controlled to have predetermined temperature and the silver fault and the gate cut fault are prevented. |
