Views: 0 Author: Site Editor Publish Time: 2020-02-16 Origin: Site
When molding with engineering plastics (such as POM, PA, PBT, and PET), the correct mold surface temperature plays a very important role. After the mold design meets the basic product requirements, injection molding operators can only produce high-quality products with the help of mold temperature controllers. But what are the adverse effects of improper mold temperature?
1) If the surface temperature of the mold is too low, it is easy to cause defects in the appearance of the molded product and easy to identify defects. In addition, if the mold surface temperature is too low, the product will shrink in size when used under high temperature conditions. If the mold surface temperature is too low, the shrinkage of the mold will decrease, but the shrinkage of the molded product will increase.
2) The shrinkage of engineering plastic molds and molded products is closely related to mold temperature and product wall thickness. The uneven heat distribution in the mold will lead to different shrinkage rates, which will lead to oversized products.
3) If the dimensional stability of the product requires a long cooling time, it means that the temperature control of the mold is invalid. This is because the time required for the mold temperature to rise and reach equilibrium is too long.
4) The uneven heat distribution on the mold surface will prolong the molding cycle, which will reduce production efficiency and increase molding costs.
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Tuofang company is specialized in designing and manufacturing Plastic Injection.
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