注塑模具锁模力计算.doc

.塑料零件锁模力计算方法一、 经验法：锁模力=制品投影面积面积常数面积常数的选用如下：序号塑料类型面积常数1一般塑料1.52ton/in(0.2330.31kg/cm)2工程塑料34ton/in(0.4650.62kg/cm)3加纤工程塑料46ton/in(0.620.93kg/cm)优点：简单、方便；缺点：过于粗略、随意性大、准确度差；必需建立在丰富的经验基础上，才懂判断如何选择比较合适的常数。二、 常数法：锁模力=投影面积常数1.2常数的选用如下：序号塑料类型面积常数1PE1.01.5ton/in(0.1550.233kg/cm)2软PVC1.52.0ton/in(0.2330.31kg/cm)3PS/PP1.52.5ton/in(0.2330.387kg/cm)4PA2.02.5ton/in(0.310.387kg/cm)5ABS2.03.0ton/in(0.3