Smooth hot dip galvanized steel sheet

With the increasing use of the hot galvanized plate, the following purpose can be achieved in the modern strip continuous hot galvanized unit: ①improves the smoothness and flatness of the thin plate, but also can flatten the zinc particles on the surface to smooth the strip surface, which is especially beneficial for future deep flushing and other occasions with high use precision; ②The finishing roller used has been pre shot peened, so the surface of the finished plated plate has a certain roughness. It can improve the adhesion of the coating and store a certain amount of grease, which is beneficial to the lubrication of the die during deep drawing; ③For later painted plates, small zinc flowers can still be exposed through the paint layer, although the surface is controlled into small zinc flowers.Therefore, for some high requirements of galvanized plates, the small zinc flower surface needs to be further optical treatment.This allows the galvanized plate to obtain a more uniform silvery white appearance; ④Through optical integration, the lower yield point can be reduced, make the yield platform disappears or less obvious, can prevent the slip line in later stretching or deep flushing processing, and improve the possibility of deep flushing.

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