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电、磁检验法与某些无损检验法相比其有效检验深度最大为10毫米,因此仅适用于检验近表面区域或薄壁制件。但由于下述特点,电、磁检验法仍得到广泛应用:(1)漏磁法对缺陷鉴别力高,方法简单,费用低;(2)感应法检验速度高达100米/秒,容易自动化,特别适用于连续生产流程。其缺点是:(1)漏磁法中常用的磁粉检验还存在鉴别的客观性和重复性问题;(2)
Electrical, magnetic test method compared with some non-destructive testing of its effective depth up to 10 mm, it is only suitable for testing near-surface area or thin-walled parts. However, due to the following characteristics, electrical and magnetic testing methods are still widely used: (1) magnetic flux leakage method for the identification of defects high, simple, low cost; (2) induction test speed of up to 100 m / s, easy to automate, Especially suitable for continuous production process. The disadvantages are: (1) Magnetic particle testing commonly used in MFL still has the problem of objectivity and repeatability of identification; (2)