Shanghai Daoqin Plastics Co., Ltd.

injection shot speed degree setting is control 熔胶充填 injection molding parts mold time and flow 模式, is flow process in most important conditions. injection shot speed degree adjustment positive and for product appearance quality has for 支配. injection shot speed degree setting basic is combined plastics in inner flow 时, its flow formed 之断面 large small rise drop, and 遵守﹝ slow → fast → slow ﹞而尽 amount fast ﹝确认 appearance has 无瑕疵﹞ need 领. § make plastics flow 时, temperature degree reduce relatively slow, flow easy. § pressure loss relatively small, inner pressure distribution decrease/reduce. § increase formed product surface gloss, reduce combined obvious degree and improve/increase its strong/high degree; increase surface flow marks, gas and flash/burrs machine 会. § decrease/reduce 充填时, thin relatively easy 充填, thick can can easy 于凹陷 phenomenon § increase plastics separation structure uniform property or crystallization degree. ※初期 slow speed 充填 效果 § decrease/reduce and gate 部位 焦痕, and other 瑕疵. § can make more formed relatively easy obtain flow balanced. ※末期 decrease speed 充填 效果 § increase gas 体逃逸 machine and for its generate hot pressure shrink, can decrease/reduce 流路末端 short or 烧焦. § holding pressure relatively 准确, mold cavity inner pressure high or degree 充填; formed quality ﹝精 degree and deformation amount ﹞也 can relatively stability Shanghai plastics has company