Shanghai Daoqin Plastics Co., Ltd.

PC polycarbonate (PC) chemical and material features PC is types non engineering material, tool has especially good impact resistant strong/high degree, heat stabilized property, gloss degree, made fine features, flame retardant features and resistant property. PC 缺口伊估德 impact strong/high degree （otched Izod impact stregth） non high, and shrinkage rate very low, generally is 0.1%~0.2%. PC has very good machine features, flow features relatively 差, therefore this type of material injection molding parts process relatively difficult. in selection types quality PC材 material 时, need product most 终期望 is 基准. if parts requirements has relatively high impact resistant property, that use low flow rate PC材 material; 反之, can use high flow rate PC材 material, this can optimization injection molding parts process. injection molding parts process conditions drying 处理: PC材 material tool has wet property, processing front drying very important. drying conditions is 100C to 200C, 3~4 small 时. processing front wet degree must small 于0.02%. temperature degree: 260~340C. injection molding parts mold temperature degree: 70~120C. injection pressure: can can use high injection pressure. injection speed degree: for/regarding relatively small gate use low speed injection, for its it type type gate use high speed injection. type applications electrical and equipment （计算 machine parts, connectors and other ）, device tool （ food processing machine, electrical 冰箱抽屉 and other ）, 交通运输 industry （车辆 front rear 灯, table/sheet sheet/plate and other ）.