METHOD FOR EXPLOITATION OF ROLLS IN SHEET ROLLING FOUR-HIGH STAND Russian patent published in 2002 - IPC

FIELD: rolled stock production, possibly hot rolling of sheet steel in four-high stands. SUBSTANCE: method comprises steps of alternating operation with pressed one to another rolling roll and backup roll and regrinding of rolls for removing damaged layer; sustaining relation of rigidity values of rolling and backup rolls in range 1.02-2.35 at effort of their mutual pressing in range (0.4-1.7)t/mm. In variant of invention removed value along diameter of rolling and backup rolls at regrinding is set in range (0.3-0.6)mm and (2.5-7.5)mm respectively. EFFECT: lowered consumption of rolling and backup rolls. 2 cl, 1 tbl, 1 ex