Shanghai Daoqin Plastics Co., Ltd.

injection molding parts molding di color or mixed color plastics products is will types raw materials separation mixed combined made formed types different color, 并由两台 same structure, same specifications injection molding parts machine separation 别塑化 injection types color material, rear 经由一 nozzle molding injection molding parts mold inner. molding plastics products has separation color, mixed color or is random 则花纹, its appearance is injection molding parts molding and surface 修饰 无 method to. same specifications injection molding parts machine in 塑化熔 material 交替经 nozzle injection formed, 由塑化 machine and nozzle 间 程序 control as control. this type of di color injection molding parts machine structure, 如图 2－3 示. if in 图2－3 in injection molding parts machine nozzle inner add can 够旋转 芯 rod, injection 时, 两 塑化 injection plant/unit can time, material amount, pressure force, injection speed degree types different color material, 经由同一 旋转芯 rod nozzle to molding injection molding parts mold inner, this 样, can made different 花纹图案 injection molding parts products. 图2－4 is types molding injection molding parts mold can in 心轴旋转换位 injection molding parts machine structure 示意. it sleeve/set specifications same, structure 形式也 same injection plant/unit and injection molding parts mold plant/unit formed. this type of structure injection molding parts machine as methods lower. Formosa Plastics injection plant/unit meanwhile formed one-time injection rear, sleeve/set same structure molding injection molding parts mold in 心轴旋转180℃换, rear again 第二次 separation 别由两 sleeve/set injection plant/unit different color material molding injection molding parts mold inner. through this type of separation 两次完 formed different color material 注入同一 molding injection molding parts mold inner as, can to di color injection molding parts products. injection molding parts molding di color products production process features lower. ① di color injection molding parts machine sleeve/set structure, specifications full same injection plant/unit formed. nozzle production methods need tool has structure, or has can 旋转换位 structure full same molding injection molding parts mold. injection 时, requirements sleeve/set injection plant/unit in material temperature degree, injection pressure, injection material amount and other process parameters same, need amount shrink small sleeve/set plant/unit in process parameters 波动差. ② di color injection molding parts molding plastics products and injection molding parts molding plastics products comparison, its injection 时 熔 material temperature degree and injection pressure need using/adopting relatively high parameters value. main/primary causes is di color injection molding parts molding in injection molding parts mold runner comparison long, structure comparison complex, injection material flow retardant force relatively large. ③ di color injection molding parts molding plastics products need selection heat stabilized property good, melt degree low raw materials, 以避免因熔 material temperature degree high, in runner inner time relatively long separation understanding. application relatively more plastics is polyolefin type resin, polystyrene (PS) and ABS material and other. ④ di color plastics products in injection molding parts molding 时, is make types different color material in molding can very good in injection molding parts mold in 熔接, ensure injection molding parts products molding quality, using/adopting relatively high material temperature degree, relatively high injection molding parts mold temperature degree, relatively high injection pressure and injection speed rate.