Shanghai Daoqin Plastics Co., Ltd.

in precision injection molding parts in, injection molding parts mold is use 以取 符 combined quality requirements precision plastics products key/critical 之一, precision injection molding parts use injection molding parts mold 应切实符 combined products dimensions, degree and requirements. make injection molding parts mold degree, dimensions 一致, its plastics products 之实际 dimensions 也会因 shrinkage amount 差异而不一致. therefore, has control plastics products shrinkage rate in precision injection molding parts technology in 就显 十 separation important. precision injection molding parts based on is injection molding parts products degree, products dimensions 公差, 形位公差 and surface coarse degree. need precision injection molding parts must has many related conditions, most essence is plastics material, injection molding parts injection molding parts mold, injection molding parts process and injection molding parts equipment this basic factors. design plastics products 时, 应首先选定 engineering plastics material, can precision injection molding parts engineering plastics also must selection that force property can high, dimensions stability, resistant creep property can good, resistant ring force cracking material. its according to selection plastics material, formed product dimensions degree, parts heavy, quality requirements and injection molding parts mold structure selection suitable injection molding parts machine. in processing process in, effect/influence precision injection molding parts products factors main/primary injection molding parts mold degree, injection molding parts shrinkage, and products ring temperature degree and wet degree 变化幅 degree and other 方面. Shanghai plastics has company