What are the advantages of coating thickness gauge compared with coating thickness gauge?
The coating thickness gauge is a newly developed product. Compared with previous coating thickness gauges, it has the following main advantages:
1. Fast measurement speed: The measurement speed is 6 times faster than other TT series;
2. High accuracy: The accuracy of the product can reach 1-2% after simple calibration. It is currently the only product on the market that can reach Class A. Its accuracy is much higher than similar domestic products such as Era. It is also more accurate than imported products such as EPK;
3. Stability: The stability of measurement values and use stability are better than imported products;
4. Functions, data, operations, and displays are all in Chinese;
The covering layer formed to protect and decorate the surface of the material, such as coating, plating, coating, lamination, chemically formed film, etc., is called coating in relevant national and international standards. Coating thickness measurement has become an important part of quality inspection in the processing industry and surface engineering, and is an essential means for products to meet excellent quality standards. In order to internationalize products, my country's export commodities and foreign-related projects have clear requirements for the thickness of the coating.
The main methods for measuring coating thickness include: wedge cutting method, light interception method, electrolysis method, thickness difference measurement method, weighing method, X-ray fluorescence method, β-ray backscattering method, capacitance method, magnetic measurement method and eddy current measurement Law etc. The first five of these methods are destructive testing. The measurement methods are cumbersome and slow, and they are mostly suitable for sampling inspection.
X-ray and β-ray methods are non-contact and non-destructive measurements, but the devices are complex and expensive, and the measurement range is small. Due to the presence of radioactive sources, users must comply with radiation protection regulations. The X-ray method can measure extremely thin coatings, double coatings, and alloy coatings. The β-ray method is suitable for measurement of coatings and coatings with substrate atomic numbers greater than 3. The capacitance method is only used when measuring the thickness of insulating coatings on thin conductors.
