Steel rolling, for example, is a useful material steel rolled by steel mills.
Rolling mill is a kind of machine that rolls hot metal repeatedly.
A roll is a collection of two or more related rolls in a rolling mill.
Rolling is to roll metal into plates, bars or special-shaped materials with different cross sections with a rolling mill.
Multi-roll mill is a new type of mill, which has four rolls, six rolls, twelve rolls and twenty rolls, of which two rolls directly used for rolling are working rolls and the rest are backup rolls. Multi-high rolling mills are usually used for cold rolling thin plates, strips and foils.
The six-high mill was developed by Hitachi in Japan in 1972. This machine has unique functions of shape control and crown control. A series of hydraulic and electrical feedback control systems and detection systems, such as Sichuan AGC device, __E roller and indoor roller transverse work transfer, are adopted in the structure. 1983, Japan has 37 sets of this equipment. As a patent of Japanese wood, it has already spread to the United States, West Germany, Canada, East Germany, Brazil, South Korea, Mexico, Sweden, Spain, Finland, France, Italy and other countries. Up to 1986, more than 300 such rolling mills have been manufactured. Among them, the original HC rolling mill has developed into various six-high rolling mills such as HCM, HCMW, UC and its variants C-C, HVC and 6MB.