Long History of Cold-Rolled Steel Sheet Production and Technology

- Feb 02, 2016-

We'll probably know the history of cold rolling mill. The first production of the mill began in Germany, because it was only for technical reasons the production of cold rolled steel strip width 20-25mm. However the United States in 1859 produced a 25mm of cold rolling machine, to the year 1887, after 28 years they produced the width of 150mm low-carbon cold-rolled machine. As time developed, who need the product of width expanded, gradually developed an attached device, such as straightening and flattening, cutting and heat treatment equipment, product quality has been greatly improved.