Temperature Control in injection Molding process

Tube temperature: injection molding process to control the temperature of the barrel temperature, nozzle temperature and mold temperature.The first two kinds of temperature mainly affect the plasticization and flow of plastics, and the latter one mainly affects the flow and cooling of plastics.Each plastic has a different flow temperature, and the flow temperature and decomposition temperature of the same plastic vary depending on the source or brand, due to the difference in average molecular weight and molecular weight distribution.The plasticizing process of plastics in different types of injection machines is also different, so the temperature of the selected cartridge is different. 2 nozzle temperature: nozzle temperature is usually slightly lower than the maximum temperature of the cylinder,This is to prevent the melt in the straight-through nozzle may occur in the "salivation phenomenon."The nozzle temperature should not be too low, otherwise, the nozzle will be blocked by the early solidification of the melt, or the properties of the product will be affected by the injection of the early solidification into the die cavity. 3 the mold temperature: the mold temperature has a great influence on the intrinsic properties and apparent quality of the product.The mold temperature depends on the crystallinity of the plastics, the size and structure of the products, the performance requirements, and other technological conditions.