According to the principle of injection molding processing, if the ideal injection products are obtained, in addition to the formulation of raw materials and the mold design is reasonable, the operator must strictly control the operating conditions (temperature, pressure, time, etc.), and adjust and improve in time due to changes in process conditions during the production process. .
When the performance and requirements of a product are proposed, the most appropriate raw materials, production methods, production equipment and mold structure should first be selected under the principle of "economic and reasonable, technically feasible". After these conditions are determined, the selection and control of process conditions becomes the most important factor.
The most important process conditions for injection molding are temperature, pressure and corresponding time, etc., which are described as follows:
(1) Temperature
Injection molding process needs to control the temperature, including cylinder temperature, nozzle temperature and mold temperature. The first two are related to the plasticization process of plastics, and the latter is related to the formation of Pump Bottles plastics
