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当前我国对在用工业管道进行的定期检验的重点是焊缝检测,对管道母材检验的重视程度略显不足。《在用工业管道定期检验规程(试行)》中对管道母材检验的相关规定提及很少,仅对宏观检查存在问题和重要部位进行表面无损检测。通过在实际工作中发现,在管道母材表面缺陷中,主要是管道表面腐蚀和表面裂纹。表面腐蚀可以用肉眼直接检查,便于发现和处理;但表面裂纹难以发现且危害极大。因此,在用工业管道定期检验中对管道母材
At present, our country focuses on regular inspection of industrial pipelines for the inspection of weld seams, with a slight lack of emphasis on the inspection of the pipe base metal. “In the regular inspection procedures for industrial pipes (Trial)” on the pipe base metal inspection related provisions mentioned in the few, only macro-inspection problems and important parts of the surface non-destructive testing. Through the actual work found in the pipe base metal surface defects, mainly pipe surface corrosion and surface cracks. Surface corrosion can be directly checked with the naked eye for easy detection and handling; however, surface cracks are hard to detect and are extremely damaging. Therefore, in the regular inspection of industrial pipes in the pipe base metal