摘要
介绍了聚乙烯(PE)注塑管件的压扁试验测试方法,并通过实际测试管件熔接线强度对比研究了压扁试验与静液压强度试验(165h、80℃)的测试结果及规律。结果表明,压扁试验检测熔接线无裂缝则静液压强度试验也合格,而静液压强度试验合格,压扁试验中熔接线则存在有裂缝或无裂缝2种情况;压扁试验发现可以快速、有效地检验出PE注塑管件的熔接线强度是否满足要求,可及时调整工艺或改进模具等方案来改善与提高产品品质。
This paper introduced the flattening test method for polyethylene（PE）pipe fittings and presented a comparative investigation on the experimental results and variation trends between the flattening test and hydrostatic strength test at 165 h and 80℃ through exact tests for the weldline strength of pipe fittings.The results indicated that there was no crack found in the flattening test of weld line,while the specimen was confirmed to be qualified in the hydrostatic strength test.However,when the specimen was determined as a qualified product in the hydrostatic strength test,there are two cases for the flattening test,i.e.with cracks and without crack.The flattening test was found to detect the weldline strength of PE pipe fittings quickly and effectively,and it could meet the requirement for injection molding so as to improve the product quality by adjusting the processing technology and modifying the mold schemes.
作者
吴出华
王文笔
WU Chuhua;WANG Wenbi(Nam Sok Building Material ＆ Plastic Products（Shenzhen）Co,Ltd,Shenzhen 518111,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2018年第5期126-129,共4页
China Plastics
关键词
聚乙烯
注塑
管件
熔接线
静液压强度
压扁试验
polyethylene
injection molding
plastic pipe fittings
weldline
hydrostatic strength testing
flattening test
作者简介
联系人:吴出华,379515158@qq.com
