摘要
简述了聚乙烯(PE)管道热熔焊接接头的影响因素,对国内外热熔接头可靠性测试方法的研究进展进行了综述。总结了焊接参数对接头质量的影响规律,并分析了接头的失效机理。焊接参数的改变能显著影响热熔接头的性能,选择最优焊接参数能提高接头乃至整个管道系统的可靠性。分别从力学性能、有限元模拟和无损检测3个方面总结了热熔接头相关研究,期待未来建立一种全面的热熔焊接接头力学性能评价标准,能减少实验时间、降低测试成本。随着材料的创新和科技手段的发展,未来有限元模拟和无损检测技术有望代替力学实验,成为热熔接头可靠性检测的主要方法。
In this review paper,the influencing factors of the hot-melt welded joints of polyethylene pipes were briefly described,and the research progress in the reliability testing methods of hot-melt joints at home and abroad was reviewed.The influence of welding parameters on the quality of the joint was summarized,and the failure mechanisms of the joint were analyzed.The change of welding parameters can significantly affect the performance of hot-melt joints,and the selection of optimal welding parameters can improve their reliability even across the whole piping system.The related research on the hot-melt joints was summarized from three aspects:mechanical properties,finite element simulation and nondestructive testing.It is expected that a comprehensive evaluation standard will be established for the mechanical properties of hot-melt welded joints in the future.This can reduce the experimental time and test cost.With the innovation of materials and the development of scientific and technological means,the finite element simulation and non-destructive testing technology are expected to replace mechanical experiments,and it will become the main method for reliability testing of hot-melt joints in the future.
作者
李兆璞
武立文
乔亮
范峻铭
张毅
LI Zhaopu;WU Liwen;QIAO Liang;FAN Junming;ZHANG Yi(College of Pipeline and Civil Engineering,China University of Petroleum(East China),Qingdao 266580,China;Shenzhen Gas Co,Ltd,Shenzhen 518000,China;Shenzhen Engineering Research Center for Gas Distribution and Efficient Utilization,Shenzhen 518000,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2022年第10期104-116,共13页
China Plastics
基金
国家自然科学基金资助项目(11802343)
江苏省特种设备安全监督检测研究院项目(KJ(Y)2020011)。
关键词
聚乙烯
热熔焊接接头
可靠性评价
有限元模拟
无损检测
polyethylene
hot melt welded joint
reliability evaluation
finite element simulation
non-destructive testing
