Some Information about Cold Rolling

cold rolling
With hot rolled steel coils as 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 coil can be used as a raw material, hot dip galvanized factory for hot dip galvanizing unit Settings are annealed wire. Hard coil weight generally in June to 13.5 tons, coil diameter is 610 mm.
General cold rolling plate, coil shall be continuous annealing unit (CAPL) or bell type annealing furnace eliminate cold work hardening and rolling stress, corresponding mechanics performance index prescribed by the standard.
Cold rolled steel plate surface quality, appearance, dimension precision are better than that of the hot rolled plate, and its products right rolling thin thickness to 0.18 mm or so, so favored by the users.
For the substrate to cold rolled steel coils products deep processing, become the high value-added products. Such as electric galvanized, hot dip galvanized, electric galvanized fingerprint resistant steel plate and vibration compound steel plate, belt, PVC compound steel plate, etc., make the product is beautiful and fine qualities such as high corrosion, has been widely applied.
Must be annealed cold rolled steel coils for finishing, including cutting head, tail, trimming, leveling, leveling, heavy volume, or longitudinal shear plate, etc. Cold-rolled products are widely used in automotive, home appliances, instrument switch, building, office furniture and other industries. Steel strapping after each bag is 3 ~ 5 tons in weight. Flat volume classification is commonly 3 ~ 10 tons/volume. Coil diameter 610 mm.

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