熱門關鍵詞：濟南彩鋼板 | 濟南復合板 | 濟南彩鋼瓦 | 濟南c型鋼 | 濟南鋼結構 |
We all know that the color of color coated galvanized sheet is diverse. The color problem and how to control the color difference of color coated galvanized sheet are the problems that our manufacturers need to overcome and the key to ensure the quality of products.
Different sizes of zinc flowers on the substrate form many small pits of different sizes at the grain boundary, which have an impact on the formation of color difference on the surface of the board, especially on the light color. It is better to choose the substrate without zinc flower or small zinc flower.
How to control the color difference of color coated galvanized sheet? We use natural gas to supply the oven temperature for our production equipment, so that the oven temperature is balanced, there will be no temperature difference in time period, and the paint must be evenly adjusted before production.
The stability of film thickness has great influence on the color difference of color coated plate. The adjustment of film thickness mainly includes: coating viscosity, adjusting the gap between the sticking roller and the coating roller, changing the roller speed of the coating roller and the sticking roller, adjusting the pressure between the coating roller and the strip support roller.
As for the missing coating of color coated galvanized sheet, the missing coating is caused by the factors such as floating, deformation and oxidation of the base plate. Of course, controlling the color difference is the key factor to ensure the quality of the product, so we must pay attention to it, so as to ensure the availability of the product more effectively.
Due to the uneven mixing of the coating or the high viscosity of the coating in different barrels, the coating extends from one side of the feed port to the reflux port in the material tray, showing a color difference band. In addition, to change the color of the paint, especially the color contrast is large, because the cleaning is not clean, pollution forms color difference.
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