3~1.8% 以上是常用塑料的收縮率.PS-0.5% PBT-1.產(chǎn)品模具尺寸-（模具尺寸*收縮率）=實(shí)際產(chǎn)品尺寸3.要計(jì)算產(chǎn)品的收縮就要清楚各種塑料的收縮率.模具尺寸=產(chǎn)品實(shí)際尺寸+產(chǎn)品實(shí)際尺寸X材料收縮率2.5% PVC-1.5% PA66-2.5~2% CA-0.25% PA12-0.5% PMMA-0.8~1.5% PVC-0。2。1.1~0.4% ABS-01.5~5% HDPE-2~5% PP-1~2.5% POM-2% PA6-0.5% PC-0.6% LDPE-1