Significance and Coating Thickness Measurement
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.) Physical or chemical and other methods are used to form a layer on the surface of a metal or non-metal substrate with a certain thickness and different from the base material to meet product design and use requirements.
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 surface of a common metal 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 it is too thick, it will cause economic waste. The cover layer thickness is uneven or does not meet the required requirements. Mechanical and physical properties have an adverse effect. Therefore, the thickness uniformity of the material 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
Because the country has clear requirements for the thickness of metal coatings, we must use metal coating thickness gauges to measure the coating thickness. Linshang LS220H metal coating thickness gauge can be used not only to measure the thickness of various metal coatings, but also to measure coatings such as plastic, paint, enamel, etc. For the measurement of layer thickness, the metal coating 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.
The Linshang LS220H is an integrated high-precision coating thickness gauge, which combines the Hall effect and eddy current thickness measurement principles. It can be used for coating thickness on various metal substrates. Hall effect: It can be used for the measurement of non-ferromagnetic coatings on ferromagnetic metal substrates. Eddy current principle can be used for the measurement of non-conductive coatings on non-magnetic metal substrates
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