基于ASMIXE的阀门堆焊工艺评定试验

Valve overlaying procedure qualification test based on the ASME Ⅸ code

为了生产满足ASMEⅨ规范的零件,焊接工程师必须充分理解该规范的内容。从焊接工艺评定的重要性及流程入手,阐述了预备焊接工艺规程(PWPS)的观念,提出试件的尺寸选择应综合考虑规范的最低要求、产品的重要性及焊接工艺评定数量最少化三个方面,描述了试验中堆焊操作细节及焊后应做的检测试验。

In order to manufacture qualified components in accordance with the ASMEⅨcode, the welding engineers must fully understand the content of the specification. Begin with the importance and process for welding qualification, the concept of PWPS （Prior Welding Process Specification） is presented, the minimum requirements, the importance grade of the product and minimizing the number of procedure qualification tests should be considered comprehensively, the operation details and type of tests required at post weld are overlayed.