What should be paid attention to in the cold rolling production of pre-painted coils

The advantages of color-coated rolls, such as light weight, beautiful appearance, and good anti-corrosion performance, have gradually become known to people. Because of their wide application and superior product performance, they have become the first products that everyone is rushing to buy. The market development prospects are broad, and the production technology has been constantly improving. But we still need to pay attention to some special methods of operation.

Color-coated coils are generally in the cold rolling process. Because of the conflict and rolling between the roller and the surface of the aluminum plate, the surface will produce fine oxide powders that fall off and adsorb, and the rolling oil and incidental suspended components will remain on the aluminum plate. The processing of finished products such as compounding and painting will cause unfavorable influence. At this time, it needs to be cleaned by special cleaning equipment. The cleaning method is mainly to pressurize the cleaning medium through a pressure pump, and perform non-contact scrubbing on the surface of the color-coated roll to dissolve and peel off the aluminum powder and oil on the surface. Then it is squeezed dry by a squeezing roller, blown by high-pressure air, and even dried by high-temperature air to obtain a clean and smooth color coated coil.