知识贝壳
知识贝壳
所属栏目：聚合物科学与工程
Blowmoldingisaprocessusedtoproducethin-wallhollowthermoplasticparts.Acylinderortubeofplastic,calledaPARISON,isplacedbetweenthejawsofamold.Themoldisclosedtopinchofftheendsoftheheatedplasticandcompressedairpressureisusedtoforcethematerialagainstthemoldfaces ......（本文共 9763 字 ） [阅读本文]>>