Shanghai Daoqin Plastics Co., Ltd.

injection molding parts main/primary process parameters 包括: 1. material temperature degree: material temperature degree is very important, use material temperature degree is property. temperature degree can in 射嘴处 amount degree or use gas method amount degree. material temperature degree setting 取决于熔胶 temperature degree, screw speed, back pressure, material amount and injection molding parts cycle. if has processing certain 一特定 grade plastics experience, from most low setting 开始. is control, material separation 区, is has setting is same temperature degree. if as time long or in high temperature lower as, will 第一区 temperature degree setting is relatively low value, this will anti plastics 早熔化 and separation 流. injection molding parts front, ensure liquid pressure 油, material 斗封闭 device, mold and material 缸都处于 positive temperature degree lower. 2.熔 material temperature degree: melt temperature degree for melt flow property can main/primary function, due to plastics has specific melting point, melting point is 一 熔 melt lower temperature degree 段, plastics separation structure and formed different, for its flow property effect/influence different, rigid property separation 子链受 temperature degree effect/influence relatively obvious, 如PC, PPS and other, flexible separation 子链如: PA, PP, PE and other flow property through temperature degree obvious, therefore according to different material combined injection molding parts temperature degree. 3. mold temperature degree: has plastics material due to crystallization temperature degree high, crystallization speed degree slow, need relatively high mold temperature, has due to control dimensions and deformation, or demolding need, need relatively high temperature degree or relatively low temperature degree, 如PC generally requirements 60 degree above, 而PPS is to relatively good appearance and improvement flow property, mold temperature has need 160 degree above, mold temperature degree for improvement product appearance, deformation, dimensions, 胶模方面 has can function. 4. injection pressure: melt front 进 需 retardant force, effect/influence product dimensions, weight and deformation and other, different plastics product injection pressure different, for/regarding 像PA, PP and other material, increase pressure make its flow property significantly improvement, injection pressure large small product density, appearance gloss property. it has solid 定 数 value, mold filling difficult, injection molding parts pressure increase large.