圆筒面纵向焊缝TOFD检测缺陷定位
Flaw Localization of the Cylinder Surface Longitudinal Weld by TOFD Examination
摘 要
在圆筒面纵向焊缝TOFD检测时需要对超标缺陷进行定位.缺陷的尺寸由长度和高度表征,缺陷的位置由深度和水平距离表征.采用将主声束聚焦于所检测分区的2/3深度处的思路,探讨了基于平板焊缝缺陷深度的计算公式,帮助检测人员在实际圆筒面纵向焊缝TOFD检测中精准判定缺陷位置,在保证检测精度的同时提高检测效率.
纵向焊缝
TOFD检测
缺陷定位
Cylinder surface
Longitudinal welds
TOFD examination
Flaw localization
Abstract
It is needed to localize the flaw position for echoes over the gate on TOFD longitudinal welds testing.The size of the defect was characterized by the length and height, and the location of the defect was characterized by its depth and horizontal distance.It was considered to make the main beam focusing on about two-thirds of the partition of the weld under test and the defect depth calculation formula was based on planar weld.The above-mentioned method can help inspection personnel to accurately judge defect position in the cylinder surface longitudinal weld TOFD test, and to improve the efficiency of inspection while ensuring accuracy.
中图分类号 TG115.28
所属栏目 试验研究
基金项目
收稿日期 2014/5/4
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备注康宝杰(1984-),男,助理工程师,主要从事无损检测工作.
引用该论文: KANG Bao-jie,HUI Zhao-xiang. Flaw Localization of the Cylinder Surface Longitudinal Weld by TOFD Examination[J]. Nondestructive Testing, 2015, 37(4): 60～65
康宝杰,惠兆祥. 圆筒面纵向焊缝TOFD检测缺陷定位[J]. 无损检测, 2015, 37(4): 60～65
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参考文献
【1】邓燕燕,程俊.Y型管节点焊缝超声波检测缺陷的计算机辅助定位[J].无损检测,2014,36(2):32-35.
【2】NB/T47013.10-2010承压设备无损检测第10部分衍射时差法超声检测[S].
【3】安保华,冯继忠.圆柱面周向超声检测缺陷定位估算[J].无损检测,2014,36(1):60-63.
【2】NB/T47013.10-2010承压设备无损检测第10部分衍射时差法超声检测[S].
【3】安保华,冯继忠.圆柱面周向超声检测缺陷定位估算[J].无损检测,2014,36(1):60-63.
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