磁性和非磁性基体上电沉积镍镀层 镀层厚度的测量 磁性方法

[中文适用范围]： 本文件规定了通过磁性电沉积镍镀层（也称为“e-镍”）在磁性或非磁性基材上的非破坏性厚度测量方法。该方法可能不适用于自催化（化学镀）镍镀层，因为这些镀层由于其化学成分通常为非磁性。根据本文件的目的，基材分为两种类型：a) 磁性基材上的镍镀层（A型镀层）；b) 非磁性基材上的镍镀层（B型镀层）。并非所有仪器都适用于这两种镀层。使用磁吸引力原理的仪器，其有效测量范围对于A型镀层可达50微米，对于B型镀层可达25微米。而使用磁阻原理的仪器，其有效测量范围则大得多，可达1毫米甚至更大。该方法适用于这两种镀层。 [外文原描述]： This document specifies the method for non-destructive thickness measurement via the magnetic type of electrodeposited nickel coatings, also called “e-nickel”, on magnetic or non-magnetic substrates. It is possible that the method is not applicable to autocatalytic (electroless) nickel coatings, since these coatings are often non-magnetic due to their chemical composition. For the purposes of this document, two types of substrates are distinguished: a) nickel coatings on magnetic substrates (type A coatings); b) nickel coatings on non-magnetic substrates (type B coatings). Not all instruments are applicable to both types of coating. The effective measuring ranges of instruments using the principle of magnetic attraction are up to 50 µm for type A coatings and up to 25 µm for type B coatings. For instruments using the principle of reluctance, the effective ranges are much greater, up to 1 mm or even more. This method is applicable to both types of coatings.