焊缝分类和RT比例有没有关系

elonliu

ASME的焊缝分类 仅仅是个位置而已。。与探伤 无直接必然关系。

1csss

再顶一下，等待高手解答！！！

cjpcewh

1.ASME的焊缝分类 仅和焊缝位置有关；
2.GB150的焊缝分类，除了位置有关外还与焊接接头型式有关（比如嵌入式接管和带直边的法兰环）；
3.ASME和GB150中的焊接接头系数均取决于焊接接头型式和无损检测比例。
以上为个人理解，望高手指点……

AS730060

焊缝分类和RT比例没有关系。

wanderer1997

再顶一下，等待高手解答！！！

我爱爬山

ASME VIII-II卷,无损检测要求是根据检验组确定,条款如下,
7.4.2 EXAMINATION GROUPS FOR PRESSURE VESSELS
7.4.2.1 Definition of Examination Groups.
(a) Table 7.1 defines the Examination Groups assigned to welded joints based on the manufacturing complexity of the material group, the maximum thickness, the welding process, and the selected joint efficiency. Nondestructive examination of welded joints shall be performed as indicated for each Examination Group. Each of the Examination Groups are further subdivided into sub-groups "a" and "b" to reflect the crack sensitivity of the material.
(b) Table 7.2 indicates the required NDE, joint category designation, joint efficiency, and acceptable joint types for each Examination Group.

我爱爬山

按ASME VIII-2中表7.2,NDE检查根据检验组确定.

pby1209

cjpcewh 发表于 2014-7-7 11:25
1.ASME的焊缝分类 仅和焊缝位置有关；
2.GB150的焊缝分类，除了位置有关外还与焊接接头型式有关（比如嵌入 ...

正解……
二者几乎没啥必然直接联系；
只不过，多数情况下，焊缝的位置一定程度上会对NDT方法的选择和技术要求有影响

xinggr666

确实没有半毛钱关系

gax168

RT比例取决于焊缝系数和设计的选择