What Does The Temperature Of The Dustbin Mould Depend On?
1. Mould temperature: The temperature of the Dustbin Mould has a great influence on the internal performance and apparent quality of products. The mould temperature depends on the presence or absence of plastic crystallinity, product size and structure, performance requirements, and other process conditions (melt temperature, injection speed, injection pressure, moulding cycle, etc.).
2. Barrel temperature: The temperature to be controlled in the injection moulding process includes barrel temperature, nozzle temperature, mould temperature, etc. 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. For the same plastic, its flow temperature and decomposition temperature are different due to different sources or brands. This is due to different average molecular weight and molecular weight distribution. The plasticizing process of plastic in different types of injection machines is also different, so the temperature of the selected cylinder is also different.
3. Nozzle temperature: The nozzle temperature is usually slightly lower than the high temperature of the charging barrel, which is to prevent "salivation" of molten material in the through the nozzle. The temperature of the nozzle should not be too low, otherwise, the nozzle will be blocked due to the early solidification of the melt, or the performance of the product will be affected due to the injection of the early solidification material into the mould cavity.
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