The cold rolled grain oriented steel coil is also called coil steel when it is used. To some extent, the steel is hot-pressed and cold-pressed into a roll shape, which is convenient for various processing in order to facilitate storage and transportation. Processing into steel, steel, etc.). The coils are mainly hot rolled coils and cold rolled coils. Hot rolled coil is a processed product before recrystallization of the slab. Cold rolled coil is the subsequent processing of hot rolled coil. The steel coil generally has a weight of about 15-30T.
The finishing train of the cold rolled grain oriented steel coil is made of strip steel. The hot steel strip from the last rolling mill of the finishing mill is cooled to a set temperature by laminar flow, rolled into a steel coil by a coiler, and the cooled steel coil is subjected to different finishing operations according to different needs of users. Lines (flat, straight, cross-cut or slit, inspection, weighing, packaging and marking) are processed into steel, flat and slit steel strips. Since hot-rolled steel sheet products have high strength, good toughness, easy processing and good weldability, they are widely used in shipbuilding, automobiles, bridges, construction, machinery, pressure vessels and other manufacturing industries.
With the increasing maturity of new technologies such as hot-rolling dimensional accuracy, plate shape and surface quality, and the advent of new products, hot-rolled steel sheets and strip products have become more and more widely used and are becoming more and more powerful in the market. Competitiveness.