曲轴表面及本体的缺陷，对发动机的可靠性有重要影响，对锻钢和球墨铸铁曲轴的探伤技术进行探讨。

Defects of crankshaft surface and body will produce important effect on engine reliability. This paper probes into flaw detection technology of forging steel and nodular cast iron of crankshaft.

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在拆除这些附件后，对表面进行打磨并进行磁粉探伤。

After removing these attachments, the surface shall be ground flush and examined by magnetic particle method.

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荧光磁粉探伤是一种常用的无损检测方法，是控制产品质量的重要手段，用于检测钢制零件的表面及近表面的裂纹缺陷。

Fluorescent magnetic particle detection is a NDT method that often is used for testing trivial flaws on the surface of some steel workpiece and for controlling qualities of product.

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