塑件第1部分Part 1 Plastic Parts1.塑料材料Plasticmaterial聚合物状态与塑料成型Polymerstateandplasticmoulding塑料分类Classificationofplastics2.结构工艺性Plasticpartmanufacturability*尺寸精度Dimensionalaccuracy壁厚WallthicknessRib加强肋支承面Support surfaceDraft脱模斜度*孔Hole*螺纹Screw齿轮Gear*嵌件Insert表面标记Surface marking
第1部分 塑件 Part 1 Plastic Parts 1. 塑料材料 Plastic material ❖聚合物状态与塑料成型 Polymer state and plastic moulding ❖塑料分类 Classification of plastics 2. 结构工艺性 Plastic part manufacturability ❖尺寸精度 Dimensional accuracy ❖壁厚 Wall thickness ❖加强肋 Rib ❖支承面 Support surface ❖脱模斜度 Draft ❖孔 Hole ❖螺纹 Screw ❖齿轮 Gear ❖嵌件 Insert ❖表面标记 Surface marking
塑料材料Plasticmaterial聚合物状态与塑料成型Relationship between polymer state and plasticmoulding加工与成型方法的适应性加工与成型温度T.(或Tm)TaTg熔融纺丝注射成型薄膜吹塑(%)人率挤出成型压延成型中空吹塑成型真空和压力成型薄膜和纤维热拉伸薄膜和纤维冷拉伸玻璃态黏流态高弹态坚硬固体橡皮状弹性体粘性流体
聚合物状态与塑料成型 Relationship between polymer state and plastic moulding 塑料材料 Plastic material
模塑压力温度曲线1Relationship between plastic moulding pressureandtemperatureVCTemperatureA.成形区域mouldingarea;a.表面不良线badlineofsurface;b.溢料线materialoverflowline;c.分解线decompositionline;d.缺料线materialshortageline
A.成形区域 moulding area; a.表面不良线 bad line of surface; b.溢料线 material overflow line; c.分解线 decomposition line; d.缺料线 material shortage line 模塑压力 - 温度曲线 Relationship between plastic moulding pressure and temperature
塑料分类Classification of plastics1.热塑性塑料Thermoplastic Plastics聚氯乙烯Polyvinyl chloride(PVC)(PS)聚笨乙烯PolystyreneABS(ABS)■ABS树脂(PC)聚碳酸Polycarbonate丙烯酸Acrylic(PMMA)聚丙烯(PP)Polypropylene聚甲醛Acetal(POM)2.热固性塑料ThermosetPlastics(EP)■环氧树脂Epoxy resins
塑料分类 Classification of plastics 1. 热塑性塑料 Thermoplastic Plastics ◼聚氯乙烯 Polyvinyl chloride (PVC) ◼聚笨乙烯 Polystyrene (PS) ◼ABS树脂 ABS (ABS) ◼聚碳酸 Polycarbonate (PC) ◼丙烯酸 Acrylic (PMMA) ◼聚丙烯 Polypropylene (PP) ◼聚甲醛 Acetal (POM) 2. 热固性塑料 Thermoset Plastics ◼环氧树脂 Epoxy resins (EP)
塑料的注塑温度Plastic Injection moulding temperature料筒温度℃热变形温度塑料种类（未经改性）前段中段后段200 ~200 ~150~PS85160280260220 ~190~150 ~86ABS160270260190 ~175~160 ~98POM210210180140 ~220 ~220 ~PP102290325180170 ~170~140 ~150200200150硬PVC软PVC70~100170.~140~130.~
塑料的注塑温度 Plastic Injection moulding temperature 塑料种类 热变形温度 (未经改性) 料筒温度℃ 前段 中段 后段 PS 85 200～ 280 200～ 260 150～ 160 ABS 86 220～ 270 190～ 260 150～ 160 POM 98 190～ 210 175～ 210 160～ 180 PP 102 220～ 325 220～ 290 140～ 180 硬PVC 软PVC 150 70～100 170～ 200 170～ 170～ 200 140～ 140～ 150 130～