what is the Injection molding process

The time required to complete an injection molding process is called the molding cycle, including injection time, pressure retention time and cooling time.The injection time and cooling time were the most important, and the size accuracy of the plastic parts was determined. The injection time was directly inversely proportional to the mold filling speed.The time of holding pressure is the compaction time of the plastic in the cavity. Before the melting of the gate, the pressure protection time will have an effect on the size accuracy of the plastic parts. If it is in the future, it will have no effect.The pressure protection time depends on the material temperature, mold temperature and the size of the main channel and gate.If the main channel and gate size and process conditions are normal, the position of the plastic characteristic point is to be injected into the process state 1: the hydraulic pressure rises and the screw is pushed forward.