Generally speaking, this injection molding has a short cycle, high productivity, complex shape, high size requirements and plastic parts with various inserts, which is better than other processes to some extent. At the same time, attention should be paid to the operation:
1: temperature control
Cylinder temperature: the temperature of the injection molding process of this metal powder injection molding needs to be controlled including cylinder temperature, nozzle temperature and mold temperature. The first two temperatures mainly affect the plasticization and flow of plastics, and the last one mainly affects the flow and cooling of plastics.
2. Nozzle temperature:
Nozzle temperature is usually slightly lower than the barrel ^ high temperature, this is to prevent the molten material in the straight nozzle may occur "salivation phenomenon". The nozzle temperature should not be too low, otherwise it will cause the early solidification of the molten material and the nozzle will be blocked, or because of the early solidification material injected into the mold cavity and affect the performance of the product.