METHOD OF OPERATION OF ROLL OF SHEET ROLLING STAND Russian patent published in 1998 - IPC

FIELD: rolling equipment, namely operation of working and backup steel rolls of sheet rolling stands. SUBSTANCE: method comprises steps of alternating working periods of roll and periods of regrinding it by means of rotary grinding wheel having cylindrical grinding surface and moving along roll axis at constant rate. In order to increase roll strength and to enhance quality of rolled sheets, regrinding is realized by means of grinding wheel whose cylindrical working surface at least at its one end is joined with taper portion inclined relative to axis of grinding wheel by angle 6-58′. Grinding wheel is moved at rate 0.05-0.354 m/min in direction of its taper portion for providing grinding depth 0.1-0.4 mm. At operation roll load equal to 0.5-0.9 t/mm is sustained. EFFECT: enhanced roll strength, high quality of rolled stock. 2 dwg, 1 tbl, 2 expe