Targeted adjusting of the contour using corresponding specifications

Abstract

A rolling line for rolling a flat rolling material (2) comprises a number of roll stands (1). Prior to the rolling of the flat rolling material (2), a control system (3) of the rolling line receives actual variables (I) of the flat rolling material (2) before the rolling of the flat rolling material (2), and said control system receives target variables (Z) of the flat rolling material (2) after the rolling of the flat rolling material (2). The control system (3) determines desired values (S*) for control variables (S) for the roll stands (1), based on the actual variables (I) and the target variables (Z), in combination with a description (B) of the rolling line, using a model (10) of the rolling line. The control system (3) determines the desired values (S*) in such a way that variables(E1) that are expected for the flat rolling material (2) after the rolling of the flat rolling material (2) in the rolling line are aligned as far as possible with the target variables (Z). The control system (3) transfers the desired values (S*) to the roll stands (1) such that the flat rolling material (2) is rolled in the rolling line according to the transfered desired values (S*). The targetvariables (Z) comprise at least one freely selectable, discrete characteristic variable (K1 to K5, K2' to K4', K2" to K4") defining the contour (K) of the flat rolling material (2).

Description

technical field [0001] The invention is based on a method for operating a rolling mill train for rolling flat rolled products and comprising a number of rolling stands, [0002] - wherein the control device of the rolling train acquires the actual variables of the flat rolling stock before the rolling of the flat rolling stock in the rolling mill train and the the target variable of the flat rolling stock after rolling the flat rolling stock in the rolling train train, [0003] - wherein the control means uses a model of the rolling train to determine the values ​​for the rolling mill train based on the actual variables of the flat rolling stock and the target variables of the flat rolling stock, in conjunction with the description of the rolling mill train the setpoint value of the manipulated variable of the rolling stand, [0004] - wherein the control device determines the setpoint value of the manipulated variable such that the desired variable of the flat rolled produc...

AI Technical Summary

Problems solved by technology

In other cases, the flat rolled product cannot be fed to the desired further processing, but has to be fed to other uses (often lower-value ones)

In some cases, the flat rolled parts cannot even be used anymore and are therefore scrap

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