Optimization of the cambering of the roll unit in an 800 reversing mill

Abstract

The cambering of the backup rolls in a reversing 800 mill is optimized. The calculations are performed with a refined technique, in which a flexure shape is described by a trigonometric series and the metal pressure distribution over a work roll is taken into account. An initial roll profile is described by a vector. The Winkler hypothesis about proportionality between the roll interaxial distance and the interroll pressure is used. The potential energy of a roll is calculated. This technique is applied to develop new cambering of the roll unit in an 800 mill, which ensures the required high-precision accuracy of rolled products. This accuracy is supported by the results of industrial tests.