便携式电磁轭不跨焊缝的磁粉检测  

Magnetic Particle Inspection of Portable Electromagnetic Yoke Without Crossing the Weld

作　　者：黄旭 林晓政 陈浩 Huang Xu;Lin Xiaozheng;Chen Hao

机构地区：[1]福建省建研工程检测有限公司,福建福州350001

出　　处：《江苏建材》2022年第1期43-45,共3页Jiangsu Building Materials

摘　　要：焊缝在位置及角度满足仪器放置条件和标准要求时,跨焊缝磁化的方式进行磁粉检测能够很好地保障缺陷检出率。但在工程实施中,常常由于焊缝的位置、工件形状等条件限制,从而影响了磁粉检测的可信度。通过建立磁场模型,利用磁轭头处的磁场特性,运用不跨焊缝的磁化方式对焊缝进行检测,并在实验室模拟现场牛腿的角焊缝,取得了一定的效果,降低了缺陷的漏检率,为相关磁粉检测人员提供参考。When the position and angle of the weld meet the instrument placement conditions and standard requirements,the magnetic particle testing by cross weld magnetization can well ensure the defect detection rate.However,in the project implementation,the position of weld and the shape of workpiece affect the reliability of magnetic particle testing.By establishing the magnetic field model,this paper uses the magnetic field characteristics at the yoke head to detect the weld by magnetization without crossing the weld.This study simulates the fillet weld of steel corbel in the laboratory,reduces the missed detection rate of defects,and provides reference for magnetic particle inspectors.

关 键 词：磁粉检测 便携式磁轭 有效磁化区域 不跨焊缝 

分 类 号：TG115.62[金属学及工艺—物理冶金]