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If the temperature of the plastic mold is too high, the cooling time will be extended, the product will not cool enough, and the shrinkage rate will be high after the mold is released, which is prone to shrinkage marks and small dimensions. If the mold temperature is too low, it will also affect the fluidity of the material. If the cooling is too fast, it will not be easy to fill the mold, and the appearance of the product will not look good, resulting in an increase in internal stress. If the Injection Molding size can be successfully achieved, it will be relatively stable.
If the temperature of the plastic mold is too high, it can cause deformation of the product during and after demolding, resulting in a decrease in its shape and dimensional accuracy. For crystalline plastics, high temperatures in plastic molds are beneficial for the crystallization process, avoiding dimensional changes during storage or use. For flexible plastics, using plastic molds at low temperatures can reduce molding shrinkage, improve product dimensional accuracy, shorten molding cycles, and improve production efficiency.
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