The basis for setting the speed segment must take into account the mold geometry, other flow constraints and instability factors. The speed setting must have a clear understanding of the injection molding process and material knowledge, otherwise, the product quality will be difficult to control. Because the melt flow rate is difficult to measure directly, it can be calculated indirectly by measuring the screw forward speed, or the cavity pressure (to determine that the check valve does not leak).

The polishing in the plastic mold processing is very different from the surface polishing required in other industries, and strictly speaking, the polishing of the mold should be called mirror processing. It not only has high requirements for polishing itself but also has high standards for surface smoothness, smoothness and geometric accuracy. Surface polishing generally requires only a bright surface.

The development of plastic injection molding equipment and technology is of great significance to the promotion of plastic injection molding industry. This paper will be elaborated from two aspects of equipment and technology.

This article will give you a detailed analysis of the plastic injection molding process and key links to help you better understand this field.

Plastic injection molding refers to the process of injecting the molten plastic raw materials into the mold through the injection cylinder, and obtaining the desired shape products after cooling and curing. Plastic injection molding has the advantages of high production efficiency, high product accuracy and low cost, and is widely used in electronics, automobiles, home appliances, medical equipment and other fields.