What is the production process of aluminum-plastic panels

There are many production processes of aluminum-plastic panels, according to the composite process of plastic core board and two-sided aluminum plate, it can be divided into cold composite method and hot composite method; It can also be divided into continuous composite method and batch composite method. The process of producing aluminum-plastic panels is first to clean the aluminum coil. Aluminum coil in the production due to the needs of the process, the surface is coated with lubricants and antioxidants, and some dirt will be attached during transportation, which will affect its adhesion, so it must be cleaned.
After the aluminum coil is cleaned and chemically treated, a dense chemical protective film will be produced on the surface; This layer of chemical film can improve the oxidation resistance of aluminum coil and extend the life of the paint film. The general process of cleaning is as follows: aluminum coil →spray degreasing→ water washing→ neutralization→ chemical treatment→ water washing→ drying→ cooling → winding.
The cleaned aluminum coil is sent to the coater to coat the outer surface of the aluminum coil with high-performance fluorocarbon resin. The process flow is as follows: aluminum coil → feeding→ coating fluorocarbon coating→ hot air circulation baking paint→ cooling → lamination→ cutting → winding. The panels of the exterior aluminum-plastic panels should be coated with two layers of paint and primer.