(1) Improve the surface flatness of galvanized sheet. After smoothing, the flatness of the galvanized sheet is improved to a certain extent, and the wave shape of the galvanized sheet is partially eliminated. At the same time, the slag particles or other uneven points on the surface can be flattened to make the surface smooth and flat.
(2) Adjust the surface roughness of the galvanized sheet. By controlling the roughness of the work roll surface of the light finishing machine, the original uneven roughness of the galvanized sheet surface can be unified to a certain range. This can improve product paintability and lubricity during processing.
(3) Improve the surface color of galvanized sheet. For small zinc flower and non-zinc flower products, galvanized sheet can obtain a more uniform and uniform surface by smoothing. For some private enterprises to use large zinc flower products as color-coated substrates, the zinc flower bumps and different glossiness formed by large zinc flower crystals can be flattened and unified, making the zinc flower blurred and conducive Cover zinc flowers during painting.
(4) Improve the processing performance of galvanized sheet. By smoothing, the yield platform of the galvanized sheet can be disappeared or inconspicuous, and the metal slip line can be prevented from being generated in the subsequent processing.
一 、 Large zinc flower galvanized sheet
锌 Galvanized sheet, cold rolled sheet
添加 The zinc flower is added to the zinc solution, so the beautiful zinc flower will appear when the coating is solidified. In the early use, the appearance performance will be better, but coarse grains will also appear, and there will also be slight unevenness.
二 、 Small zinc flower galvanized sheet
Actually, the products of small zinc flower are not strictly defined. Generally, the small products of zinc flower are called small zinc flower products. In fact, the main components of small zinc flower products are the same as those of large zinc flower products, but in order to overcome the defect of poor coating performance of large zinc flower products, various methods are used to suppress the growth of zinc flowers during cooling. Large, ****** forms small zinc flowers. Because it does not have the smooth surface like a large zinc flower with a mirror surface, and it is not as smooth as a zinc free product, it has a good coating performance.
III.Galvanized zinc plated
Zinc-polished zinc flower is a zinc-plated product that has been tempered again on the surface of zinc-free flower or small zinc flower, so that its surface is more flat and more suitable for the needs of modern industrial products.
4. Galvanized sheet without zinc flower
加入 In the zinc solution, the promotion element of zinc flower is added, but the zinc layer does not appear when the zinc layer is condensed, and the grains are very small, smooth and flat, so it is called a zinc-free product. It also has excellent corrosion resistance and better coating performance.