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Cold rolling
Nov 12, 2016

After annealing, the cold-rolled steel coil must be finished, including head, tail, trimming, straightening, flat, heavy volume, longitudinal or shear panels. Cold rolled products are widely used in automobile manufacturing, household appliances, instrument switching, construction and furniture industries.

Cold rolling hot rolling volume as raw material, descaling by pickling. Finished product rolling hard volume, due to the continuous deformation of cold-hardening rolling hard volume strength plastic index, increase hardness, toughness, so press performance will deteriorate, can only be used for simple deformations of parts. Rolling hard rolls can be used as raw material for hot dip galvanizing plant, set for hot galvanizing annealing line.

Cold rolling Board, volume should be subject to continuous annealing (CAPL units) or Bell-type annealing furnace to eliminate cold-rolled hardened and rolling year stress and reach the standard of mechanical properties.

Cold-rolled steel sheet surface quality, appearance, accuracy is better than hot-rolled plate, and their products can be thin to about 0.18MM.

Steel rolled products for substrate processing, high value-added products. Electric galvanized, hot-dipped galvanized, and fingerprint zinc plating, color coated steel coil and reduce vibration damping laminated steel sheet, PVC laminating steel, these products have the qualities of beauty, high resistance to corrosion.