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Abstract

The design of shape-control systems is an area of current interest in the steel industry. The object of shape control is to adjust the mill so that the rolled strip is free from internal stresses. Both static and dynamic mill models are requiredfor this purpose. A static model enables shape profiles to be calculatedfor a given set of actuator positions, and is used to generate the steady-state mill gains. Such a model is presented in this paper. The method of calculation of shape profiles is discussed. These shape profiles are plotted against the distance across the strip. Linearized mill gains are calculated about a given shape-operating point and these relate the shape changes to the actuator changes. A mill gain matrix, obtained by measuring shape at eight points across the strip, is presented.

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Static model for Sendzimir cold-rolling mill

Abstract

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