Trends in Process Control of Metal Rolling Mills

Determination of Particular Relative Reduction in Cold Rolling of Thin and Extra Thin Strips to Implement the Process with the Least Force

“…Mass production of thin hot-rolled steel strips with a thickness of 1.2-1.5 mm or less, up to 0.8-1.0 mm, which, due to cheaper price, in many cases, are used instead of cold-rolled products of similar thickness [1], has been mastered in recent years. However, thin and extra thin cold-rolled steel strips with a thickness of less than 0.8-1.5 mm up to 0.25-0.4 mm [2][3][4][5][6] and tinplate with a thickness of 0.12-0.20 mm [4,[7][8][9], due to high quality indicators at a relatively low price, continue to remain one of the most effective and demanded types of metal products, with their stock expanding and output increasing [2,3,8,10]. The technology for the production of thin and extra thin cold-rolled strips is distinguished by its multistage and long technological cycle, high level of technological loads, and high specific consumption of electrical energy caused by a high yield strength of the deformable metal and the features of elastic-plastic interaction of a thin strip with rolls, as well as by unresolved problems in this regard.…”