压力容器Issue(4)：70-74,5.DOI:10.3969/j.issn.1001-4837.2014.04.013
交流电磁场技术在储油罐角焊缝无损检测中的应用
Application of Alternating Current Field Measurement Technique in Nondestructive Testing Fillet Welds of Storage Tanks
摘要
Abstract
A new nondestructive testing method using alternating current field measurement has been pro-posed fillet welds.The detection principle of alternating current field measurement(ACFM)method is first introduced,and the abnormal magnetic signals induced by crack defects are simulated based on ANSYS software.On the basis of the ACFMdetection system,the ACFMsignal is tested and analyzed by virtue of the standard test plate,and the method is applied successfully to nondestructively inspect fillet welds of a storage tank,accomplishing the evaluation of crack defects qualitatively and quantitatively.The experi-mental test and application result have validated that the ACFM method has a high sensitivity to detect surface or subsurface cracks,providing a reference for other structural defect detection.关键词
交流电磁场检测/角焊缝/储油罐/裂纹缺陷Key words
alternating current field measurement(ACFM)/fillet weld/storage tank/crack defect分类
机械制造引用本文复制引用
冷建成,周国强,吴海涛,吴泽民..交流电磁场技术在储油罐角焊缝无损检测中的应用[J].压力容器,2014,(4):70-74,5.基金项目
中国博士后科学基金资助项目（2013M541337）；中国石油天然气集团公司十二五项目 （）
