METHOD OF ROLLING MILL OPERATION AT MAKING ROLLED STRIP Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: method of rolling mill operation for making, for example a rolled strip, with use of working rolls with curvilinear contour, narrowing to one end of a barrel of the roll and widening to its other end, the rolls being mounted in such a way, that they rest on reciprocal surfaces of backup rolls and (or) intermediate rolls and backup rolls with possibility of relative axial motion of all rolls in mutually opposite directions, comprises steps of setting the narrowing end of the working roll between an edge of the strip and an end of the backup roll in order to roll the strip mainly between convex portions of the working rolls; setting the end of the working roll directly according to the edge of the strip to be rolled and fixing it; shifting a respective end of the intermediate roll to a zone of the edge of the strip being rolled, and fixing it; setting mutually engaging working and intermediate rolls directly according to opposite edges of the strip, being rolled, and fixing them. EFFECT: enhanced uniformity of rolled strip thickness, compensation of working roll bending by action of rolling efforts. 4 cl, 3 dwg