塑料模设计与制造指导手册（内部讲义）编著：李兆飞审核：模具教研室广州铁路职业技术学院机械与电子工程学院模具教研室目 录第一单元 热塑料制品设计原则...................................................................................................................4一、尺寸、精度及表面粗糙度.............................................................................................................41、尺寸...........................................................................................................................................42、精度...........................................................................................................................................53、表面粗糙度...............................................................................................................................6二、形状.................................................................................................................................................6三、脱模斜度.........................................................................................................................................7四、壁厚.................................................................................................................................................8五、加强筋.............................................................................................................................................9六、支承面.............................................................................................................................................9七、圆角...............................................................................................................................................10八、孔（槽）.......................................................................................................................................10九、螺纹...............................................................................................
