metallic covering layer thickness -j9九游会登录入口

metallic covering layer thickness

purposes：

the thickness of the metal covering layer and its uniformity are an important quality marks of coating, it largely influences the reliability and service life of products. detecting the thickness of the metal covering layer on the material surface and its uniformity helps to monitor the product quality, improve technology, and improve business efficiency.

applications:

mainly used in protecting the small and precision instrument parts and anti-abrasion shaft repair, as well as beautifying, decorating the material appearance or conductive, anticorrosion performance etc.

tested flow:

sampling→cleaning→inlaying→grinding→polishing→etching(if necessary)→vacuum coating(if necessary)→observeing

reference standard:

gb/t 6462-2005 metallic and oxide coatings—measurement of coating thickness—microscopical method

gb/t16921-2005 metalliccoatings—measurementofcoatingthickness—x-rayspectrometric methods

jb/t 7503-1994 thickness of cross section of metal coatings scanning electron microscope measuring method

astm b487-1985(2007) standard test method for measurement of metal and oxide coating thickness by microscopical examination of a cross section

astm b748-1990(2010) standard test method for measurement of thickness of metallic coatings by measurement of cross section with a scanning slectron microscope

classic photos:

copper substrate plateing cu and ag	metal parts plateing ni and sn