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...............................................................................................................................................11十、嵌件...............................................................................................................................................13十一、标记、符号、图案、文字.......................................................................................................15第二单元塑料模设计原则与查验.............................................................................................................17一、塑料模具设计原则.......................................................................................................................171、模具设计上应与热交换器相似.............................................................................................172、采用平衡式流道系统.............................................................................................................183、模具设计标准化.....................................................................................................................184、足够的排气装置.....................................................................................................................185、确保快速修模,设计时预留修模量.....................................................................................186、以容易组立,不易出错为原则............................................