How to choose and clean color-coated rolls

December 13, 2023
Latest company news about How to choose and clean color-coated rolls

Color-coated rolls have long been widely used, and their applicability is very good. Many manufacturers have also paid attention to the development prospects of this product, and a variety of products have appeared. Then customers will appear when choosing color-coated rolls. Doubts, then how to properly choose color-coated rolls? Here is a brief introduction:
For the product category of color-coated coils, the transformation has been quite rapid in recent years. The demand for this product will increase every year, but there is a lack of high-quality substrates such as zinc-free flat sheets and die-cast aluminum alloy coated coils. The type and quality of domestic industrial paints cannot fully meet the requirements. The high price of imported industrial paints reduces competitiveness. The plastic molds required for applying tempered film colorful boards need to rely on imported materials and lack coating thickness, structure, high toughness, and flowers. A wide range of high-end color coated rolls. Therefore, when choosing a product, everyone must pay attention to the relevant characteristics of the product, which will be helpful for people to buy color-coated rolls.
Most coatings can be used as solid lubricants and can meet the lubrication requirements of most molding processes. Some industrial paints can develop the wettability of the coating by adjusting the recipe. If the wettability of the coating is insufficient, the wettability can be improved by applying oil, waxing, or covering with a film that can be separated from the original film. However, it should be noted that wet lubricating fluid easily absorbs dirt and should be removed before equipment. The original detachable film should also be removed as soon as possible after the renovation project is completed. Here’s how to clean the painted roll?
During the cleaning process of color-coated rolls, attention must be paid to the solubility and temperature of the cleaning fluid used. If the solubility of the cleaning solution is too low, the oil stains on the surface of the plate will not be cleaned, resulting in defects in the subsequent chemical coating treatment and subsequently affecting the quality of the coating; if the solubility is too high, the zinc and aluminum contained in the galvanized steel plate will be classified as amphoteric alloys and will not react in hot alkali conditions. Octanoates are easily formed on the surface of the zinc and aluminum layers in the liquid, causing serious corrosion and subsequently affecting the subsequent biological coating effect.
Chemical cleaners usually contain surfactants, and various surfactants have different optimal temperatures for establishing effectiveness. If the temperature is too high, the stability of the surfactant will be reduced, which will reduce the ability of the cleaning solution to remove oil stains; if the temperature is too low, the saponification reaction rate will be too slow to completely remove the oil stains, and at the same time, more foam will affect the cleaning effect. In addition, if the temperature of the cleaning fluid is too high, it will accelerate the corrosion of the zinc and aluminum layers when adding or subtracting the volumetric fluid.