课程设计说明书塑料罩壳模具设计学生姓名冯德贤指导教师麻向军学院机械与汽车工程学院专业材料成型及控制工程班级2008级学号200830070048提交日期目录一塑件成型工艺性分析............................................................................................31．塑件的分析.....................................................................................................32．聚丙烯（PP）材料的性能分析......................................................................33．聚丙烯（PP）的注射过程及工艺参数..........................................................4二拟定模具的结构形式和初选注射机.....................................................................41．分型面位置的确定.........................................................................................42．型腔数量和排位方式的确定..........................................................................53．注射机型号的确定.........................................................................................6三浇注系统的设计....................................................................................................91．主流倒的设计.................................................................................................92．分流道设计.....................................................................................................93．冷料穴的设计...............................................................................................114．浇口设计.......................................................................................................115．浇注系统的平衡...........................................................................................126．浇注系统凝料体积计算...............................................................................127．浇注系统各截面流过的熔体体积计算........................................................138．普通浇注系统截面尺寸的计算与校核........................................................13四模具成型零部件结构设计和计算.......................................................................141．成型零件结构设计.......................................................................................142．成型零件材料选用.......................................................................................153．成型零件的工作尺寸计算...........................................................................154．成型零件尺寸及动模板的厚度的计算........................................................18五脱模推出机构的设计..........................................................................................191．脱模机构.......................................................................................................192．脱模力的计算...............................................................................................20六模架的确定..........................................................................................................221．各模板尺寸的确定.......................................................................................232．模架各尺寸的校核.......................................................................................23七排气槽的设计......................................................................................................24八冷却系统的设计....................................................
