When customizing the injection mold, the method of controlling the injection processing temperature also needs to be understood. So what are the specific methods?

1. Barrel temperature:

The temperatures that need to be controlled for custom injection molds include barrel temperature, nozzle temperature, and mold temperature. The first two temperatures mainly affect the plasticization and flow of plastics, while the latter temperature mainly affects the flow and cooling of plastics. Each plastic has a different flow temperature. The same plastic has different flow temperatures and decomposition temperatures due to different sources or grades. This is due to the difference in average molecular weight and molecular weight distribution. Plastics are injected in different types. The plasticizing process in the machine is also different, so the barrel temperature is also different.

2. Nozzle temperature:

The nozzle temperature is usually slightly lower than the high temperature of the barrel. This is to prevent the "salting" of the melt in the straight-through nozzle. The temperature of the nozzle should not be too low, otherwise it will cause the early setting of the melt and block the nozzle, or affect the performance of the product because the early setting material is injected into the mold cavity.

3. Mold temperature:

The mold temperature has a great influence on the intrinsic properties and apparent quality of the product. The temperature of the custom injection mold depends on the crystallinity of the plastic, the size and structure of the product, performance requirements, and other process conditions (melt temperature, injection speed and injection pressure, molding cycle, etc.).
 

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