JB／T4730．3焊接接头质量分级表的细分建议

摘要

This paper made the analysis for the difficulties faced by common UT inspectors during study of welded joint＇s quality classification method of standard JB/T 4730. 3 firstly, then proposed classifying method by chart form, made detailed classifications of the welded joint＇s quality classifying table in JB/T 4730.3, in order to easily understand welded seam quality classifications by UT inspectors.%分析了在学习JB／T4730．3标准中焊接接头质量分级方法时的困惑。提出用图表形式的分级方法，将JB／T4730．3焊接接头质量分级表细分，使超声检测人员对焊缝质量分级更容易理解。