What Is Cold Rolled Coil Used For
Cold Rolled Titanium Coil is the abbreviation of ordinary carbon structural steel cold-rolled sheet, also known as cold-rolled sheet, commonly known as cold sheet, and sometimes mistakenly written as cold-rolled sheet. The cold plate is a hot-rolled steel strip of ordinary carbon structural steel, which is further cold-rolled into a steel plate with a thickness of less than 4mm. Due to rolling at room temperature, no scale is produced. Therefore, the cold plate has good surface quality and high dimensional accuracy. Coupled with annealing treatment, its mechanical properties and process properties are superior to those of hot-rolled steel sheets. In many fields, especially In the field of home appliance manufacturing, it has gradually replaced hot-rolled sheet steel.
Cold-rolled coils have good properties, that is, cold-rolled strips and steel sheets with thinner thickness and higher precision can be obtained by cold-rolling, with high flatness, high surface finish, clean and bright surface of cold-rolled sheets, and easy to coat. Plating processing, variety, wide range of uses, and at the same time have the characteristics of high stamping performance, no aging, low yield point, so cold-rolled sheets have a wide range of uses, mainly used in automobiles, printed iron drums, construction, building materials, bicycles and other industries , and is also the best choice for the production of organic coated steel sheets
Features
Because it has not been annealed, its hardness is very high (HRB is greater than 90), and its machinability is extremely poor. Only simple directional bending of less than 90 degrees (perpendicular to the coiling direction) can be performed. In simple terms, cold rolling is processed and rolled on the basis of hot rolled coils. Generally speaking, it is a processing process of hot rolling → pickling → cold rolling.
Cold rolling is processed from hot-rolled sheets at room temperature. Although the temperature of the steel sheet will be heated up during the processing, it is still called cold rolling. Cold-rolled coils formed by continuous cold deformation of hot-rolling have poor mechanical properties and high hardness. They must be annealed to restore their mechanical properties. Those without annealing are called hard-rolled coils. Hard-rolled coils are generally used to make products that do not require bending or stretching, and those with a thickness of less than 1.0 are rolled on both sides or four sides with good luck.
Main industries and uses
Cold-rolled coil products can be used in various manufacturing industries with high surface requirements or requiring stamping: such as light industrial product manufacturing, machinery manufacturing, stationery manufacturing, home appliance industry, automobile industry, construction industry, metal processing industry, etc. Electrical accessories, air conditioners, refrigerators, freezers, washing machines, microwave ovens, water heaters, electric fans, water dispensers, computer casings, motor casings, VCD casings, electric heaters, lamps, satellite antennas, speakers; filing cabinets, folders, tool boxes , whiteboards, steel handicrafts, steel office furniture, enamel products, umbrellas, etc.; security doors, electric doors, steel floors, supermarket shelves, leisure furniture, kitchen utensils, stoves, sewing machine accessories, oil drums; auto body, auto parts , motorcycle accessories, fuel tanks, bicycle accessories, chain covers; machinery manufacturing, machinery accessories, electrical and electrical cabinets, instrumentation cabinets, fire equipment boxes, safe cabinets, small containers, fans, filters, radiators, sieves, etc.; The base material of galvanized and color coated manufacturers and others.
