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Cold rolling application
Apr 17, 2018

Cold-rolled, hot-rolled steel coil for raw material, after acid pickling to remove oxide skin for cold rolling, the finished product is hard, because of cold work hardening caused by deformation of continuous cold rolling hard roll strength, increase hardness, toughness and plastic index decreased, so the stamping performance will deteriorate, can only be used for simple deformation of the parts. Hard roll can be used as raw material of hot galvanizing plant, because the hot galvanizing unit is set with annealing line.

Cold-rolled steel plate with the target thickness of the steel plate under the recrystallization temperature at room temperature. Compared with hot rolled steel plate, cold rolled steel plate thickness is more accurate, and the surface is smooth, beautiful.

Cold rolled strip is widely used, such as automobile manufacturing, electric products, locomotive and rolling stock, aviation, precision instrument, food can, etc. Cold rolled sheet steel plate is the abbreviation of common carbon structural steel cold rolling plate, also known as cold rolled plate, commonly known as cold plate, sometimes mistakenly written as a cold plate. The cold plate is made of ordinary carbon structural steel hot rolled strip, which is made of steel plate with thickness less than 4mm after further cold rolling. Due to rolling at room temperature, do not produce iron oxide, therefore, the surface of cold plate is of good quality and size precision is high, coupled with annealing treatment, the mechanical performance and the performance is better than that of the hot rolled sheet steel, in many fields, especially in home appliance manufacturing areas, has been gradually replace the hot rolled steel sheet with it.