Process performance of coated steel plate

At present, color steel plates can be divided into two series of pre-coated plates (PCM) and film-coated plates (VCM) according to the different compounding methods of the products. The difference between the two lies in the fact that the metal sheet is used as the base material and the surface composite material is different. The surface of VCM conforms to polymer film, and the surface of PCM is coated with polymer coating.
The process of the laminating unit is thermal lamination. The coating is made by transferring the color film through the coating belt, heating it at a high temperature to a certain degree, and then pasting the color film on the steel plate, and then cooling it. This method has fast speed and high production efficiency; no waste gas is produced, and the efficiency is close; the thickness of the color film can be adjusted within a certain range by adjusting the roller gap, pressure and roller speed; you can choose single-layer film or composite multi-layer film layer film.
The performance requirements of the coated steel plate mainly include the mechanical properties of the material (tensile strength, yield strength, elongation), coating performance (coating type, coating thickness and coating adhesion) and color film performance (color film type, color, gloss, durability, etc.) performance, processability, etc.). Among them, wind, impact, snow, earthquake, etc. are all related to the mechanical properties of the material, and of course they are also related to the waveform of the colored profiled steel plate, the thickness of the steel plate, the span, and the purlin distance. If the selected coated steel plate is matched with the appropriate profiled steel plate design , It can not only reduce the coefficient of the building but also reduce the construction cost. The durability, processing performance and appearance retention of the material are mostly determined by the durability of the film and coating.