Color coated steel plate (referred to as color coated plate), appeared in 1927, it is based on metal strip steel, the surface is pre-coated with various color polymer coatings, so it is also known as pre-coated steel sheet.
Color-coated products are widely used in the fields of construction, home appliances, automobiles, etc. China's research and production of color-coated plates started relatively late. Compared with the world level, there are still large gaps in product quality and new technology development in China. The performance of the color-coated plate of Yumakou Tieliang processing forming bending tester depends to a large extent on the adhesion of the coating (adhesion) [2]. Therefore, studying the influencing factors of the adhesion of color-coated plates to improve the adhesion of coatings has become a focus of current research on color-coated plates. On this basis, the influence of the roughness of the coated substrate on the adhesion of the coating was studied in detail, and the mechanism of the influence of the roughness on the adhesion of the coating was discussed. The final conclusion is as follows: tinplate
1) The unevenness of the surface of the substrate causes the phenomenon that the paint film is intertwined when it is attached thereto. The greater the roughness of the conductivity meter, the stronger the bite force and the greater the adhesion.
2) The greater the surface roughness of the substrate, the larger the actual surface area, and the stronger the adsorption of the paint film and the substrate.
3) The corrosion products generated when the substrate having a large roughness is corroded are not easily diffused, thereby reducing the influence of the generated corrosion products on the adhesion reduction.
For product information of the roughness meter, please refer to: http://://news.chinawj.com.cn Edit: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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