In order to make the metal workpiece have the required mechanical properties, physical properties and chemical properties, in addition to the reasonable selection of materials and various forming processes, heat treatment processes are often indispensable. Steel is the most widely used material in t

When the molten plastic parison falls on the open mold, the electrostatic charge will cause the following problems:1. When there is more than one parison on each mold, the static charge always has the same polarity. This way the parisons will repel each other. In this case, it is usually impossible

The screw speed directly affects the output of the blow molding machine and the quality of the product parison, and its value is determined by the size and shape of the screw and the extruded product, and the type of raw materials. Increasing the speed of the screw can significantly increase the out

Many children's plastic toys are blow-molded, such as ocean balls, wooden horses, motorcycles, slides, and seats. Toys made by blow molding process are different from rotomolding, the difference lies in:1. The toys made by blow molding process are more delicate and smooth, suitable for children to p

Hollow blow molding equipment should be maintained regularly at intervals of time. Usually, the equipment management personnel will guide the blow molding equipment. There are mainly 10 steps in the regular maintenance of blow molding equipment.

(1) Factors affecting the sagging of the parisonIn the process of parison extrusion, the parison is prone to sag due to its own weight, resulting in uneven wall thickness of the parison. The more severe the sagging, the greater the unevenness of the parison wall thickness. Therefore, during the mold