FIELD: technological processes.
SUBSTANCE: invention relates to the treatment of metals by pressure and can be used for aligning by stretch bending metal strips made of high-strength steel strips. Strip is passed through an inlet tension roller set to create a strip tension and an outlet tension roller set to reduce a strip tension. Wherein the strip between the inlet tension roller set and the outlet tension roller set is first alternately bent around separately supported aligning rollers to increase the draw ratio. Next, the strip is passed through a multi-roller correct set located behind the last aligning roller with a lot of correct rollers, around which, in order to reduce the strip curvature and/or the residual stress, the strip is alternately bent. Drawing is carried by aligning rollers and partly by the first correct roller of the multi-roller correct set. Wherein the last of the aligning rollers is made with the possibility of regulation.
EFFECT: quality of the straightened strips is increased, by providing the draw ratio by means of aligning and correct rollers.
21 cl, 3 dwg
