The production of color coated plate adopts the production process of two coating and two drying

The production of color coated plate adopts the production process of two coating and two drying. In order to ensure the coating quality of color-coated products, the quotation of color-coated plates requires the preliminary treatment of oil removal, dust removal, rust removal, etc. on the substrate surface before coating. This is the first step to ensure the coating process, and also the basic work to ensure the quality of color-coated plates. The purpose of the treatment is to remove the antirust oil, rust spots, dust, etc. attached to the surface of the substrate, and then carry out chemical coating treatment on the clean substrate surface to form a network chemical conversion film with Cr6+and Cr3+as the basic skeleton, so as to increase the adhesion between the substrate and the coating, and improve the corrosion resistance of the substrate and the durability of the coating. The work quality determines the quality of the coating, and directly affects the physical indicators such as the flexibility and impact resistance of the coating. It determines the coating adhesion of color coated plate products. The purpose of initial coating, fine coating and curing is to apply the coating to the surface of the substrate and volatilize the organic solvent of the coating by heating, so as to make the organic coating and the substrate closely combined.

The product quality of color coated plate is not only determined by the basic properties of the substrate and coating, but also depends on the production process and operation control technology. Operation control technology has a great impact on the physical properties and surface quality of color coated plate products. From the perspective of production process, the key points of production control technology should include cleaning treatment, chemical coating treatment, coating (including initial coating and fine coating), and curing.