论文部分内容阅读
本文首先将PE管的热熔焊接与金属焊接进行了区别,并介绍了其工艺过程;其次对PE管热熔对接接头的断口特征进行了分类,并分析了PE管热熔对接接头中可能产生的缺陷,虚(焊)粘、假(焊)粘是PE管存在的主要缺陷,对对接接头的强度影响较大。可以采取超声波检测方法控制PE管热熔(焊接)粘接接头的内部质量,以保证工程应用安全。
In this paper, the difference between hot-melt welding and metal welding of PE pipe is introduced firstly, and the process of PE pipe is introduced. Secondly, the fracture characteristics of PE pipe hot-melt butt joint are classified, and the possible causes of PE pipe hot-melt butt joint Of the defects, virtual (welding) sticky, fake (welding) sticky is the main drawback PE pipe, the strength of the butt joint greater impact. Ultrasonic testing methods can be used to control the PE tube hot-melt (welding) the internal quality of adhesive joints to ensure engineering safety.