Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
ASK:
ANSWER:The hot rolled steel plate coils produced by the hot rolling plant are rolled and taken. The oxide scale generated on the surface of the steel strip under corresponding conditions can firmly cover the surface of the steel strip and cover up the defects on the surface of the steel strip.
From the perspective of steel rolling, if these strips with oxidized iron scales are directly sent to the cold rolling mill for rolling, it will bring many problems: firstly, under a large amount of downward pressure, the oxidized iron scales will be pressed into the substrate of the strip steel, affecting the surface quality and processing performance of the cold-rolled plate, and even causing waste; Secondly, the broken iron oxide scale entering the emulsion system of the cooling and lubrication rolling mill will damage the circulation equipment and shorten the service life of the emulsion; Thirdly, it damages the expensive cold rolling rolls with high surface smoothness and processing accuracy. Therefore, before cold rolling, the surface oxide scale of the strip steel must be removed to ensure the surface quality of the produced cold rolled strip steel.
