Non-conductive coatings on non-magnetic electrically conductive base metals. Measurement of coating thickness. Amplitude-sensitive eddy-current method
非磁性导电基底金属上的非导电涂层 涂层厚度的测量 振幅敏感涡流法
发布日期:
2017-09-15
BS EN ISO 2360:2017规定了非导电材料厚度的无损测量方法
使用振幅敏感涡流在非磁性导电基底金属上的涂层
仪器。在本文件中,术语“涂层”用于油漆和清漆等材料,
电镀涂层、搪瓷涂层、塑料涂层、覆层和粉末涂层。这种方法
特别适用于测量由以下设备生产的大多数氧化物涂层的厚度:
阳极氧化,但不适用于所有转化膜,其中一些太薄,无法通过测量
这种方法(见第6条)。
该方法也可用于测量非导电基底上的非磁性金属涂层
材料。然而,ISO 21968中规定的相敏涡流法尤其适用
可用于该应用,并可提供更高精度的厚度结果(见附录a)。该方法不适用于测量导电基底金属上的非磁性金属涂层。ISO 21968中规定的相敏涡流法在这方面特别有用
应用然而,在导电性非常小的非常薄的涂层的特殊情况下
振幅敏感涡流法也可用于该应用(见附录A)。
虽然该方法可用于测量磁性基底上的涂层厚度
金属,不建议将其用于此应用。在这种情况下,应使用规定的磁性方法
在ISO 2178中可以使用。只有在厚度超过约1 mm的涂层非常厚的情况下,振幅才是敏感的
涡流法也可用于该应用(见附录A)。交叉引用:GUM:1995ISO 20643:2005 Ed 1ISO/IEC指南98-3:2008 Ed 1ISO 4618:2014 Ed 2ISO 2808:2007 Ed 4(R10)ISO 21968:2005(R09)Ed 1ISO 23611-1:2006(R09)Ed 1ISO/TR 22971:2005 Ed 1ISO 5725-1:1994ISO/IEC指南99:2007购买本文件时提供的所有当前修订版。
BS EN ISO 2360:2017 specifies a method for non-destructive measurements of the thickness of non-conductive
coatings on non-magnetic electrically conductive base metals, using amplitude-sensitive eddy-current
instruments.In this document, the term "coating" is used for materials such as, for example, paints and varnishes,
electroplated coatings, enamel coatings, plastic coatings, claddings and powder coatings. This method
is particularly applicable to measurements of the thickness of most oxide coatings produced by
anodizing, but is not applicable to all conversion coatings, some of which are too thin to be measured by
this method (see Clause 6).This method can also be used to measure non-magnetic metallic coatings on non-conductive base
materials. However, the phase-sensitive eddy-current method specified in ISO 21968 is particularly
usable to this application and can provide thickness results with a higher accuracy (see Annex A).This method is not applicable to measure non-magnetic metallic coatings on conductive base metals.The phase-sensitive eddy-current method specified in ISO 21968 is particularly useful for this
application. However, in the special case of very thin coatings with a very small conductivity, the
amplitude-sensitive eddy-current method can also be used for this application (see Annex A).Although the method can be used for measurements of the thickness of coatings on magnetic base
metals, its use for this application is not recommended. In such cases, the magnetic method specified
in ISO 2178 can be used. Only in case of very thick coatings above approximately 1 mm, the amplitudesensitive
eddy-current method can also be used for this application (see Annex A).Cross References:GUM: 1995ISO 20643:2005 Ed 1ISO/IEC GUIDE 98-3:2008 Ed 1ISO 4618:2014 ED2ISO 2808:2007 Ed 4 (R10)ISO 21968:2005 (R09) Ed 1ISO 23611-1:2006 (R09) Ed 1ISO/TR 22971:2005 Ed 1ISO 5725-1:1994ISO/IEC Guide 99:2007All current amendments available at time of purchase are included with the purchase of this document.