ROLL PROFILING METHOD IN FINISH GROUP OF STANDS OF STRIP HOT ROLLING MILL

摘要

FIELD: processes for reducing non-planeness, thickness difference of rolled products and metal consumption factor at rolling in finish quarto stands. ^ SUBSTANCE: method comprises steps of imparting to barrels of backup and rolling rolls normalized shape of their generatrix. Uniform deformation along thickness of strip is provided due to imparting to upper and lower backup rolls of the same stand similar shape of generatrix with zero convexity in last stand, with convexity 0.1 - 0.3 mm in last but one stand and previous to it stand and 0.3 - 0.5 mm in remaining stands and imparting to generatrix of rolling rolls of finish group of stand concavity lowering along rolling process direction from value 0.34 - 0.36 mm in first stand till 0.1 - 0.2 mm in last stand of finish stand group. ^ EFFECT: lowered thickness difference and non-planeness of rolled products. ^ 1 tbl, 1 ex