Plating Thickness Gauge | Measuring Coating Thickness

From:Linshang Time:2020/03/26 10:30:00 Browse:19
There are many types of coatings and the performance of different coatings is different. We usually use a plating thickness gauge to check the thickness of the metal coating.

1. What is the coating thickness?

       The thickness of the plating layer is actually the surface covering layer. In order to make the surface of the material have a certain degree of strengthening, protection (such as oxidation and corrosion protection) decoration or special functions (such as electrical conduction, insulation, invisibility, etc.), using physical or chemical and other methods to form layers on the surface of a metal or non-metal substrate with a certain thickness.
       The cover layer includes a coating layer, a non-metallic coating, a cladding layer, a chemically generated film to apply a cover layer to the material surface to achieve the special function and performance of the material. 

2. Significance of coating product thickness test

       Plating is actually a metal-based composite material, which means that a thin layer of this precious metal is plated on the common metal surface in order to store or look better with a layer of plastic. The production of a composite plating layer refers to a process in which one or more insoluble solid particles are added to a plating solution. The solid particles and metal ions are deposited together.
       In industrial production, if the cover layer thickness is too thin, it will be difficult to exert the special functions and performance of the material. If the coating thickness is too thick, it will cause economic waste. The cover layer thickness is uneven or does not meet the required requirements. Therefore, the thickness uniformity of the surface cover layer is one of the most important product quality indicators.
       Testing the surface coating of materials has become the most important process necessary for the material processing industry and users to perform product quality testing. It is an essential means for products to reach high quality standards.

3. Coating thickness measurement method

       The country has clear requirements for the metal coating thickness, we must use metal plating thickness gauges to measure the coating thickness. Linshang LS220H metal plating thickness gauge can be used to measure the thickness of various coating on the metal substrates. For the measurement of layer thickness, the metal plating thickness gauge uses the non-destructive measurement principle of magnetic thickness measurement method and eddy current thickness measurement method, which will not cause damage to the metal coating surface when measuring the coating surface.

plating thickness gauge

       The LS220H plating thickness gauge is an integrated high-precision plating thickness gauge, which combines the Hall effect and eddy current thickness measurement principles. It can be used for coating thickness on various metal substrates. There are only four types of ferromagnetic metal elements at room temperature: iron, cobalt, nickel and thorium. Common non-ferromagnetic metals: copper, aluminum, magnesium, zinc, chromium, etc. Hall effect: It can be used for the measurement of non-ferromagnetic coatings on ferromagnetic metal substrates. Eddy current: the eddy current thickness gauge can be used for the measurement of non-conductive coatings on non-magnetic metal substrates.

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