A kind of production method of high flatness cold-rolled strip steel

Abstract

In the production method of the high-flatness cold-rolled strip steel of the present invention, the shape meter measuring rolls are arranged at the exits of the first rolling mill and the last rolling mill, so as to realize the precise detection of the cold-rolled flatness control, and invest in all rolling mills. The plate shape adjustment creates conditions, breaks the shackles of the traditional technical idea of ​​controlling the end plate shape with the end rolling mill in the existing technology, and eliminates the drawbacks of the lag in plate shape detection and adjustment. In this method, all rolling mills are used to participate in the shape adjustment, the efficiency of the rolling mill is brought into play, the ability of shape control is improved, and the dependence of the quality of the cold rolled shape on the shape of the incoming material is eliminated.

Description

technical field [0001] The invention belongs to the technical field of cold-rolled strip steel quality control, and relates to a production method of high-flatness cold-rolled strip steel. Background technique [0002] In the prior art, the quality control method of cold-rolled strip steel is mainly by setting up a shape meter to measure the shape of the incoming material at the exit of the last rolling mill, and transmit the detection signal to the controller, and the controller returns the The signal controls the final stand rolling mill for tilt adjustment, bending roll adjustment or segment cooling adjustment. This form of feedback control has the problem of control time lag. And because the front rolling mill does not participate in the shape adjustment, the strip steel has been hardened and set after being rolled by the front rolling mill, and it is difficult to change after adjustment by the last rolling mill, and there is a problem of insufficient adjustment ability...

AI Technical Summary

Problems solved by technology

This form of feedback control has the problem of control time lag

And because the front rolling mill does not participate in the shape adjustment, the strip steel has been hardened and fixed after being rolled by the front rolling mill, and it is difficult to change it after adjustment by the last rolling mill, so there is a problem of insufficient adjustment ability

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