What difference between cold treatment with steel and heat treatment of steel

Cold treatment steel belt and heat treatment of steel belt belongs to a kind of steel band, but because of its production process and use of different raw materials, both in nature and there is a big difference. Linyi Oriental steel strip co. , LTD. Then detailed introduction for you down the differences between two kinds of steel belt. Heat treatment of steel strip on slab as raw material, after heat made strip roughing and finishing mill group. From finishing to hot steel strip mill out through laminar flow cooling to the set temperature, which consists of the winder coil, steel coil after cooling, according to the different needs of users, after different finishing line processing and become a steel plate, flat roll and longitudinal cutting steel strip products. Cold treatment steel strip is to use hot rolled steel coils as the 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. Hot galvanizing unit and all Settings are annealed wire, must pass through annealing to restore its mechanical properties, without annealing is hard. Hard coil is commonly used to do without bending, stretching products,. The thickness of hard luck good or quadrilateral bending on both sides. In addition to the different technology means, on the performance of the two also have very big difference. Cold treatment steel belt with a certain degree of strain hardening, toughness is low, can achieve better showed, used for cold bending spring piece parts, such as surface also has a certain luster, feel is smooth, high hardness, processing is relatively difficult, but it is not easy deformation, high strength. And heat treatment of steel belt with high strength, good toughness, easy to processing molding and good weldability and other excellent properties, and widely used in ship, automobile, Bridges, buildings, machinery, pressure vessels and other manufacturing industries. A: spring steel band performance by which heat treatment. 。 。 Next article: hot rolling strip production process