In the injection molding process, the temperature of the mold directly affects the quality of the mold and the molding quality and production efficiency of the mold, according to the requirements of the plastic, the raw material temperature injected into the mold is about 2000C, and the temperature of the mold removed from the mold is about 600C, the temperature drop is due to the cooling water into the mold, resulting in a decrease in temperature, usually the mold cooling with regular warm water can be. Sometimes the temperature of the mold can be adjusted by regulating the flow of water.<br>The material used in the CD box is polypropylene (PP). It needs a higher mold temperature, if the mold temperature is too low will affect the fluidity of the plastic, increase shear resistance, so that the internal stress of the plastic parts is greater, and even there will be cold flow marks, silver wire, can not be filled and other defects. Therefore, heat hot water or mold at the beginning of the injection to prevent underfilling.<br>In short, in order to achieve high quality and efficient production, the mold must be temperature-regulated.
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