COLD ROLLED BAND TENSION STRAIGHTENING METHOD AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2006 - IPC B21D1/02 

FIELD: plastic working of metals, possibly tension straightening of cold rolled bands.

SUBSTANCE: method comprises steps of passing band through groups of braking and tensioning rollers; subjecting band at process of tensioning it to elongation between two groups of rollers; subjecting band to bending with tension in additional group of rollers arranged between said groups of braking and tensioning rollers. Main elongation degree of band is created by means of group of additional rollers. Apparatus for performing the method includes groups of braking and tensioning rollers. Group of additional rollers mounted between said two groups of rollers includes tension rollers for bending and tensioning band, namely it includes four tension rollers for providing sign-variable bending of band and for tensioning it.

EFFECT: enhanced quality of band surface.

8 cl, 2 dwg