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injection molding parts quality control method
in recent years injection molding processing market automotive, home appliances field/area development, 也跟 火爆起 但 injection molding processing quality control formed enterprise difficult 题.
检验 injection molding processing product can lower 几点:
(1) color 点: and color different or mixed resin in 杂点暴露 in surface upper.
(2) gas filament: due to types types causes, gas in product surface lower and color different 并发亮, belt/tape has flow 样.
(3) 塌坑: due to material shrinkage, make product local overall surface lower 陷.
(4) 熔接缝: product in molding process in, above melt material versus combined 接线, and 手感都 has 感觉.
(5) material: product certain 部位不 saturated 满.
(6) 白印: due to internal stress, in product surface generate and natural color different white 痕迹.
(7) 滋边: （毛刺） due to types types causes, product non structure separation generate more material
(8) 封堵: 应该通透 方 due to 滋边造 formed 不通.
(9) fracture: plastics local rear defect.
(10) 拉毛: scratch generate fine 皮, in plastics surface phenomenon.
(11) filament: 油痕, add types types causes, 油污（包括 demolding agent
