Shanghai Daoqin Plastics Co., Ltd.

screw speed effect/influence injection molding parts material material in screw in and hot and 剪却效应﹐ therefore it is effect/influence can force, quality and molding cycle important parameters. screw speed high, can force strong/high. plastics melt, large is screw generate hot amount, therefore screw speed fast, has lower effect/influence: 1. plastics hot understanding; 2. make screw or abrasion loss accelerated. main/primary advantages is increase can force, reduce time. in screw relatively large or relatively deep 时, if method reduce back pressure, can increase screw speed improve/increase speed degree, decrease/reduce time. amount rear screw speed especially low, reduce property impact, improve/increase amount degree, more grade control has 利于消 remove temperature improve/increase quality.