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Roughness effect for prepainted steel adhesive force

August 28, 2017No CommentsCAMELSTEEL

Rely on its excellent processibility, the color coated steel coil has been widely applied in some areas. Such as building, home appliances, automobile and son on. Its excellent processibility can largely depends on the size of the prepainted steel adhesive force.

Therefore, researching the influence factor of prepainted steel adhesive force to improve the coating adhesive force has become a research emphasis of current color coated board technology.On this basis, the product development department of CAMELSTEEL studied in detail the influence rule of the roughness of the color coated substrate on the coating adhesion.

And the mechanism of the influence of the roughness on the coating adhesion is discussed as follows:

1. The unevenness of the substrate surface causes the interlocking phenomenon that film adhere to the substrate. The greater the roughness, the stronger the bite force, and the greater the adhesion.

2. The larger the surface roughness of the substrate, the greater the true surface area, and the stronger the adsorption of the film and the substrate.

3. The corrosion products produced when the substrate with biggish roughness is corroded are not easily diffused, thereby reducing the effect of the resulting corrosion products on the decrease in adhesion.

About Us

Zibo Camel Material Co., Ltd. was created in 2009 and focus on creating famous steel coil brand – CAMELSTEEL. We are professional manufacturer and trading company of steel coils. Our main products include prepainted galvanized steel coil, prepainted galvalume steel coil, galvanized steel coil , galvalume steel sheet and corrugated roofing sheet etc. .And they are widely applied in the area of building, household appliances, light industry and decoration etc. , both domestic and foreign markets. We adopt advanced production technology in produce process. And there are two color coated steel line, two galvanized line and one galvalume line.

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