Industry News

Factors affecting the speed of injection molding work hardening

Update:28-02-2019
Summary:

Nowadays, the application of injection molded parts is […]

Nowadays, the application of injection molded parts is quite extensive, and more and more companies are engaged in injection molding processing. When we are processing injection molded parts, we often need to pay attention to the hardening speed of the injection molded parts. The hardening speed will affect the efficiency of injection molding. Then, what factors are affected by the work hardening speed of injection molded parts?

The hardening speed of injection molded parts is closely related to the type of materials processed by the injection molded parts, the shape of the plastic parts, the wall thickness, the molding temperature, and whether preheating and preloading, such as pressing, preheating, increasing the molding temperature and increasing the pressing time. Measures can significantly accelerate the hardening speed. In addition, the hardening speed of injection molded parts processing should also be suitable for the requirements of the molding method. For example, when injecting or injection molding, it is required to have a slow chemical reaction during plasticization and filling, a slow hardening, and a long-term flow state.

In addition, after filling the cavity, it should be hardened quickly under high temperature and high pressure. Plastics with slow curing speed in injection molding will make the molding cycle longer and the productivity will decrease. Plastics with fast curing speed cannot be formed into complex injection molded parts. Therefore, the hardening speed of the injection molded parts must be strictly controlled during the processing of the injection molded parts.