What is the surface smoothing function of Galvanized Steel Sheet?

　　(1) Improves the surface flatness of the Galvanized Steel Sheet. After smoothing, the flatness of the galvanised sheet is improved to a certain extent and the waveform of the galvanised sheet is partially eliminated. At the same time, slag or other uneven spots on the surface can be flattened out, making the surface smooth.

　　(2) Adjusting the surface roughness of the galvanised sheet. By controlling the surface roughness of the finishing machine’s work rollers, the original uneven roughness of the galvanised sheet surface can be unified to within a certain range. This improves the paintability of the product and the lubricity of the process.

　　(3) Improving the surface colour of galvanised sheet. For both shiny and non-shiny products, smoothing allows the galvanised sheet to achieve a more uniform glossy surface.

　　For some private companies using large flake products as colour coated sheets, the flake bumps and different gloss levels formed by the large flake crystallisation can be smoothed and unified and the flake will become blurred, facilitating the covering of the flake in the painting process.

　　(4) Improve the processing performance of galvanised sheet. Through the smoothing process, the yield plateau of the galvanised sheet can disappear or become inconspicuous, thus preventing metal slip lines from appearing in subsequent processing.