News

Basic knowledge and technical application of plastic mold

update:11-06-2020
abstract:

The processing quality and precision of the mold also d […]

The processing quality and precision of the mold also determine the quality of these products. Because of the different materials, appearance, specifications and uses of various products, the molds are divided into non-plastic molds such as casting molds, forging molds, die casting molds, stamping molds, and plastic molds.

General definition of mold: In industrial production, various presses and special tools installed on the press are used to make metal or non-metallic materials to produce parts or products of the required shape through pressure. Such special tools are collectively called molds.

SMC mould

In recent years, with the rapid development of the plastic industry and the continuous improvement of strength and precision of general and engineering plastics, the application range of plastic products is also expanding, such as: household appliances, instruments, construction equipment, automotive industry, Japan In many fields such as hardware, the proportion of plastic products is rapidly increasing. A properly designed plastic part can often replace multiple traditional metal parts. The trend of plasticizing industrial products and daily-use products is increasing.

Description of the injection process: The mold is a tool for producing plastic products. It consists of several groups of parts, and there is a molding cavity in this combination. During injection, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding cavity, and cooled and shaped in the cavity, then the upper and lower molds are separated, and the product is ejected from the cavity through the ejection system to leave the mold, and finally the mold is closed. For the next injection, the entire injection process is cyclic.