精品文档---下载后可任意编辑目 录....................................................................................................................1摘 要......................................................................................................................1第一部分 综述....................................................................................................21.1 制品原材料的选择..................................................................................21.1.1 聚苯乙烯 PS..................................................................................21.1.2 聚乙烯 PE......................................................................................21.1.3 聚氯乙烯 PVC...............................................................................21.1.4 聚丙烯 PP......................................................................................2第二部分 设计过程............................................................................................32.1 塑料水杯尺寸的确定.............................................................................32.2 成型零部件的设计.................................................................................32.2.1 型腔、型芯工作部位尺寸的确定...............................................32.3 选用标准模架.........................................................................................42.4 注射机的选定.........................................................................................52.4.1 初步选定注射机...........................................................................52.5 浇注系统的设计......................................................................................62.5.1 直浇口（主流道）设计要点......................................................62.5.2 直浇口尺寸计算..........................................................................62.5.3 浇口套的设计................................................................................
