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盾构机主体结构包括刀盘体和盾体,其表面缺陷的无损检测主要采用磁粉检测和渗透检测,本文介绍了两种检测方法的原理和常用方法及检测要点。
The main structure of the shield machine includes the cutter body and the shield body. The non-destructive testing of the surface defects mainly uses the magnetic particle testing and the penetration testing. This paper introduces the principle, common methods and testing points of the two testing methods.