METHOD AND ROLLING MILL FOR IMPROVEMENT OF ROLLED METAL STRIP OUTPUT, END OF WHICH COMES OUT WITH ROLLING SPEED Russian patent published in 2009 - IPC B21B37/58 

FIELD: technological processes; metallurgy.

SUBSTANCE: method includes rolling of metal strip, end of which comes out of appropriate last mill of multistand rolling mill with rolling speed, at that in time of rolling strip tension is provided between two following mills for stabilisation of strip traveling. Strip end divergence in process of rolling is eliminated since shortly before its exit from mill, produced differential forces are measured between drive side and control side of rolling mill separately for every mill, and they are used to produce turn value and to determine turn direction to generate correcting value for installation of rollers, and installation is corrected. Rolling mill comprises several mills, working rollers and support rollers of which are set to motion on appropriate drive side and has devices for measurement of rolling force on drive side and control side, at that rolling mill is provided with evaluator unit for differential force of metal strip end rolling and computer unit for calculation of rollers turn value in time of metal strip end passage.

EFFECT: improvement of strip end rolling conditions.

9 cl, 3 dwg