摘要
测试和分析了聚乙烯管道热熔对接焊接头的结晶度、硬度、拉伸性能和冲击性能 ,并与基材的性能进行了比较。结果发现 ,焊接接头区域内的结晶度高于基材部分的结晶度。焊缝的拉伸强度和硬度也均高于基材 。
Crystallinity,hardness,tensile strength and impact toughness of fusion welding joint of polyethylene pipes are tested and analyzed.And a comparison is made between the welded joint and matrix.It is found that the crystallinity in the joint area is higher than that of the matrix,the tensile strength and hardness of the joint weld are also higher,but its impact strength is lower than that of the matrix.
出处
《中国塑料》
CAS
CSCD
北大核心
2003年第2期73-77,共5页
China Plastics
