钢结构焊接工艺评定标准认可范围对比分析

Comparison and analysis of the approval scope of welding procedurequalification standards for steel structures

对于大型产品或项目而言,焊评的全覆盖至关重要,其既可以保证工作的安全,又可以减少后期因焊评缺项而耽误工期。通过对不同标准中焊接方法、材质、厚度、接头形式、焊接位置等方面认可范围的对比,可为焊接技术人员制定覆盖全项目的焊接工艺评定计划提供参考。重点对GB 50661—2011与CCS—2022两个焊接工艺评定标准进行对比。对比结果表明,两个标准对于焊接方法、材质、厚度、接头形式及焊接位置等方面的覆盖原则有着很大差异。据此指出,在进行产品设计时应综合结构特点进行标准选择;另外,由于在实际生产项目中对于标准的组合使用越来越多,焊接技术人员在运用标准时需要注意各标准之间的融会贯通,避免重复工作。

For large-scale products or projects,the full coverage of welding procedure qualification(WPQ)is essential.It can not only ensure the safety of work,but also reduce the delay of construction period due to missing items of WPQ.By comparing the approval scope of welding method,material,thickness,joint form,welding position and other aspects in different standards,it can provide reference for welding technicians to develop a WPQ plan covering the whole project.This paper focuses on the comparison between the two WPQ standards GB 50661-2011 and CCS-2022.The comparison shows that there are great differences between the two standards in terms of the principles covering welding method,material,thickness,joint form and welding position.It is pointed out that the standard selection should be based on the structural characteristics during product design.In addition,due to the increasing use of standard combinations in actual production projects,welding technicians need to pay attention to the mastery of various standards so as to avoid duplication of efforts.