Cold-rolled steel coil is a kind of steel product made from hot-rolled steel plate by cold rolling many times. This process is like a piece of cake repeatedly rolled thin, and then rolled thin, the final product is uniform thickness, high surface finish.

Cold-rolled steel coil is an important metal product, widely used in construction, automobile manufacturing, home appliances and other fields. It is manufactured by cold rolling process and has a series of manufacturing process flow and product characteristics.

The manufacturing of cold rolled steel coil first needs to prepare raw materials, mainly including hot rolled steel coil, cold rolled raw materials, coating materials and so on. Hot-rolled steel coil as a raw material needs to be pickled, rust removal and other treatment to remove surface oxides and impurities. Cold rolling raw materials need to be cut, flat and other processes to obtain the width and thickness suitable for cold rolling.

The manufacturing process of cold rolled steel coil mainly includes rolling, annealing and surface treatment. The raw material is gradually thinned by multiple passes of the mill, and the required width and thickness are obtained through the continuous rolling process. Then, through the annealing process, the grain of the steel is refined to improve its plasticity and toughness. Surface treatment, such as pickling, galvanizing, etc., to improve the corrosion resistance and surface quality of the steel coil.

Cold-rolled steel coil manufacturing process compared to hot-rolled steel coil, lower energy consumption, less impact on the environment. Cold rolled steel coil can be recycled, reduce waste of resources, in line with the requirements of sustainable development.The manufacturing process and product characteristics of cold rolled steel coil make it an important metal product. It has excellent surface quality, high dimensional accuracy, excellent mechanical properties, good corrosion resistance, good machinability and environmental protection and energy saving characteristics, widely used in various fields, to promote the development and progress of industry.