A Method for Predicting Rolling Force of Hot Rolling Mill with Secondary Control

Abstract

The invention provides a method for predicting the rolling force of a hot rolling mill with secondary control. The method is suitable for rolling of various incoming materials and various regulations, and uses the historical data of the rolling process to predict the rolling force of each pass of the subsequent incoming materials. For the rolling of the same material and the same specification, the prediction method is designed based on the rolling results of the previous strip, that is, the deviation between the actual exit thickness of the last pass and the set target exit thickness. It assigns the thickness difference to each pass in turn according to a certain set of weight coefficients, and then determines the adjustment amount of the rolling force on each pass, and eliminates the deviation by adjusting the rolling force forecast value of all passes. Then, a reasonable prediction value of rolling force is given. The method of the invention simply and effectively solves the problem of rolling force setting in the secondary control system under the existing rolling conditions and levels.

Description

technical field [0001] The invention relates to a method for forecasting the rolling force of the secondary control of a hot rolling mill, which is used to solve the problem of setting the rolling force in the rolling secondary control system. Background technique [0002] In the metal processing industry, at present, in the production of aluminum hot rolling mills in many manufacturers, under the given regulations and given the thickness reduction of each pass, the rolling force prediction value is either not set, or it is given by manual experience or Set by the rolling force model, these values ​​are inaccurate, resulting in great difficulty and pressure for the first-level thickness control, the rolled strip cannot reach the preset result, and the quality of the product cannot be obtained. ensure. [0003] In fact, in order to achieve the preset results, in modern rolling, several aspects of cooperation are needed, namely, the rolled piece model, such as deformation res...

AI Technical Summary

Problems solved by technology

At present, the existing situation cannot meet this requirement, so in the face of such a complex system, it is of great significance to design a simple and effective rolling force prediction method

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