聚乙烯管道焊接技术和评价方法

Welding Technology and Evaluation Method of Polyethylene Pipes

综述了聚乙烯管道焊接技术和评价方法的国内外研究现状,较详细地阐述了聚乙烯管道热熔焊接和电熔焊接的焊接原理、焊接技术、焊接方法、工艺条件以及焊接质量的控制方法,介绍了几种聚乙烯管道焊接质量的评价方法,包括破坏性焊接性能评价方法、非破坏性焊接性能评价方法、长期性能评价方法等。最后,指出聚乙烯管道焊接技术和评价方法应受到质量检验部门的重视。

The development of welding technology, quality control and assessment of polyethylene pipes were reviewed. Principles, technology, method and quality control of butt fusion and electro fusion were described in details. Several evaluation systems of welding of pressure pipes were summarized and compared, including breaking, non destructive test, long term property analysis,etc. It was pointed out that welding technology of polyethylene pipes and quality evaluation should be paid more attention to.