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管道内外壁缺陷的漏磁检测

戴光, 吴忠义, 朱祥军, 杨志军, 刘玉琢

戴光, 吴忠义, 朱祥军, 杨志军, 刘玉琢. 管道内外壁缺陷的漏磁检测[J]. 无损检测, 2018, 40(3): 19-23,28. DOI: 10.11973/wsjc201803005
引用本文: 戴光, 吴忠义, 朱祥军, 杨志军, 刘玉琢. 管道内外壁缺陷的漏磁检测[J]. 无损检测, 2018, 40(3): 19-23,28. DOI: 10.11973/wsjc201803005
DAI Guang, WU Zhongyi, ZHU Xiangjun, YANG Zhijun, LIU Yuzhuo. Magnetic Flux Leakage Testing of Inner and Outer Wall Defects of Pipeline[J]. Nondestructive Testing, 2018, 40(3): 19-23,28. DOI: 10.11973/wsjc201803005
Citation: DAI Guang, WU Zhongyi, ZHU Xiangjun, YANG Zhijun, LIU Yuzhuo. Magnetic Flux Leakage Testing of Inner and Outer Wall Defects of Pipeline[J]. Nondestructive Testing, 2018, 40(3): 19-23,28. DOI: 10.11973/wsjc201803005

管道内外壁缺陷的漏磁检测

基金项目: 

国家质检总局科技计划资助项目(2014QK158);浙江省质监系统科研计划资助项目(20150236)

详细信息
    作者简介:

    戴光(1954-),男,教授,博士生导师,主要从事化工设备设计、声发射检测理论与评定方法以及结构完整性评价等研究工作

    通讯作者:

    杨志军, E-mail:yangzjzj@163.com

  • 中图分类号: TG115.28

Magnetic Flux Leakage Testing of Inner and Outer Wall Defects of Pipeline

  • 摘要: 为了更好地进行现场检测及缺陷定量分析,并探究缺陷类型及深度对漏磁场信号的影响,根据标准NB/T 47013.12-2015制备管件校准试件、对比试件和裂纹试件。利用可变径管道外壁的漏磁检测仪器对存在点蚀、裂纹等缺陷的38.1,50.8,76.2,101.6 mm共4种管径的试件进行漏磁检测。结果表明,管外壁缺陷漏磁场信号强于内壁缺陷信号,内外壁漏磁场信号均随缺陷深度的增加而增强,槽形缺陷的漏磁场信号强于球形缺陷的漏磁场信号。
    Abstract: In order to better undertake field detection and quantitative analysis of defects, it is urgent to explore the effect of the type and depth of defects on the leakage magnetic field signal. According to the standard of NB/T 47013.12-2015, the pipeline calibration specimen and the contrast specimen and the crack specimen were prepared. The diameter-variable magnetic flux leakage testing device outside pipeline was carried out on the pipe diameter of 38.1, 50.8,76.2,101.6 mm, which were small defects such as pitting and crack. The experimental results show that the leakage magnetic field signal of the outer wall defect is stronger than that of the inner wall; the leakage magnetic field signal of the inner and outer wall is enhanced with the increase of the defect depth; the leakage magnetic field signal of the groove defect is stronger than that of the spherical defect.
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  • 被引次数: 0
出版历程
  • 收稿日期:  2017-10-15
  • 刊出日期:  2018-03-09

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