Molding plastic products
Injection mold factory shrinkage force form calculation thermoplastic molding shrinkage As mentioned above, the factors that affect thermoplastic molding are as follows: plastic variety injection mold In the thermoplastic molding process, the plastic products molded by the injection mold factory have strong internal stress and residual stress frozen in the molecular orientation of the plastic parts. Therefore, compared with thermosetting plastics, the shrinkage force is greater, the shrinkage rate range is wider, and the orientation is obvious. In addition, the shrinkage after molding or the shrinkage after debugging is processed.
Injection mold factory: plastic properties of injection molded plastic products. When the injection molded product is molded, the molten material contacts the surface of the mold cavity, and the outer layer is immediately cooled to form a low-density solid shell. Due to the poor thermal properties of the plastic, the plastic inner layer of the plastic products molded by the injection mold factory cools slowly, forming a high-density solid layer, and the shrinkage is large, so the wall thickness and cooling speed are slow, and the high-density layer thickness shrinks greatly. The characteristics of the plastic parts of the injection molded products of the injection molding factory have a great influence on the shrinkage direction.