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结合JB/T4730.4-2005中的有关规定,深入分析在役设备定期检验过程中焊缝及原材料、零部件表面磁粉检测的工艺及实际操作,以提高表面缺陷的检出率。
Combined with the relevant provisions of JB / T4730.4-2005, in-depth analysis of the equipment during the regular inspection of welds and raw materials, parts and components of the magnetic particle testing technology and practical operation to improve the detection rate of surface defects.