Precision injection molding VS ordinary injection molding

2020-12-07 21:30:05

An important method to ensure the precise size of injection molded parts in the process of precision injection molding is to control the shrinkage of injection molded parts, including: heat shrinkage, disguised phase shrinkage, orientation shrinkage, compression shrinkage and elastic recovery of injection molded parts.

The characteristic of ordinary injection molding is that it does not require high dimensional accuracy of injection molded parts. Generally, it can be assembled as a standard. The appearance requirements of injection molded parts are relatively high. If necessary, a second processing (such as oil injection) may be used. Improve appearance defects.

Ordinary injection molding does not require a particularly precise injection molding machine, nor does it require specially designated materials. Generally, commonly used thermoplastics can be used for production. Therefore, ordinary injection molding processes are widely used in modern plastics industry.