|
|
Analysis on influence of defect length on magnetic flux leakage test results of round rod |
HU Baishang |
Baowu Jfe Special Steel Co., Ltd., Shaoguan 512123, China |
|
|
Abstract The relationship between the reliable detection length of artificial groove damage on the surface of round rod and the width of magnetic flux leakage detection channel was analyzed. Moreover, the detection and determination of the defect signal under the condition of defect signal length suppression was also investigated. The formation of the detection signal caused by the depth variation of the natural defect and the application conditions of the length suppression of the defect signal were analyzed. The "uncertainty principle" of magnetic flux leakage detection of round rod was obtained, and the detection of natural defects on round rod was a probability event. Finally, the empirical measures to improve the reliability of magnetic flux leakage for surface defects of round rods were proposed.
|
Received: 20 July 2022
|
|
|
|
[1] |
胡柏上.改善钢棒漏磁检测可靠性方法的探讨[J].物理测试,2017,35(3):30.
|
[2] |
李路明,黄松岭,杨海青,等.缺陷长度对漏磁场的影响[J].科学技术与工程,2002,2(4):52.
|
[3] |
冶金无损检测人员资格鉴定与认证委员会.铁磁金属材料的漏磁检测[M].北京:中国科学技术出版公司,2016.
|
[4] |
吴德会,游德海,柳振凉,等.交流漏磁检测法趋肤深度的机理与实验研究[J].仪器仪表学报,2014,35(2):327.
|
[5] |
周忠贺,许皆乐,古玉祺.缺陷特征对漏磁场检测的影响规律[J].化工机械,2021(5):711.
|
[6] |
张华明,康宜华,张武翔,等.钢棒纵向裂纹漏磁检测方法[J].机械与电子,2004(12):40.
|
[7] |
吴德会,刘志天,王晓红,等.表面缺陷的方向性对漏磁场分布的影响[J].物理学报,2017,66(4):266.
|
[8] |
中华人民共和国工业和信息化部. YB/T 4289—2020 钢管、钢棒自动漏磁检测系统综合性能测试方法[S]. 2020.
|
[1] |
HU Bai-shang. Discussion on improving the reliability of the magnetic flux leakage testing of steel bars[J]. Chinese Journal of Iron and Steel, 2017, 35(3): 30-34. |
[2] |
FAN Hong. Application of the electromagnetic NDT in metallurgical industry[J]. Chinese Journal of Iron and Steel, 2017, 35(1): 1-7. |
[3] |
CHEN Chang-hua,HUA Feng,QIAN Jian-qing,WANG Si-nan. Defect dissection analysis of 1Cr13 forging by ultrasonic flaw detector[J]. Chinese Journal of Iron and Steel, 2016, 34(6): 37-41. |
[4] |
FAN Hong, JIA Hui-ming. Exploration on the steel rods AC magnetic flux leakage testing technique[J]. Chinese Journal of Iron and Steel, 2015, 33(6): 1-5. |
[5] |
CHEN Zhengge;WANG Changlong;JI Fengzhu;ZUO Xianzhang. Application of Multisensors Information Fusion in Fault Diagnosis[J]. Chinese Journal of Iron and Steel, 2006, 24(5): 0-19. |
|
|
|
|