A method for adjusting a finish rolling stand and a rolling line control system

Abstract

The invention discloses a finishing mill stand adjustment method and a rolling line control system. The technical problem that in the prior art, the calculated effective unit crown of each stand inlet and the calculated roll gap crown of a mill do not conform to the actual conditions of a production site is solved. The method includes the steps that in response to addition operation, first correction coefficients are added into a first shape product rolling practice (SPRP) table of the rolling line control system to form a plurality of second SPRP tables; a third SPRP table matched with at least one steel parameter of an intermediate blank is determined from the second SPRP tables; the first correction coefficients in the third SPRP table are corrected according to the wave form performance of the steel parameters at the outlet of each finishing mill stand to obtain corrected coefficient values; and the original unit crown distribution amount of at least one finishing mill stand is corrected according to the corrected coefficient values, and the corresponding finishing mill stands are adjusted based on the corrected unit crown distribution amount. In this way, the calculated roll shifting position and roll bending force of each finishing mill stand are more suitable for various types and specifications.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method for adjusting a finish rolling stand and a rolling line control system. Background technique [0002] As an important quality index of hot-rolled strip products, plate shape mainly includes two aspects: cross-sectional crown and flatness. The main task of the hot-rolled strip shape control model is to meet the requirements of the hot-rolled strip products by setting the two parameters of the strip shape adjustment mechanism, the roll shifting position and the roll bending force of each finishing mill, before the intermediate billet enters the finish rolling. Target convexity and flatness requirements. The flatness model in the prior art is based on the rolling force calculated by the finishing rolling model and transmitted to the flatness model, the wear and thermal expansion of the roll calculated by the roll model and transmitted to the flatness model, and the i...

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Problems solved by technology

[0005] The embodiment of the present invention solves the problem that the calculated effective proportional convexity at the entrance of each stand and the calculated rolling mill roll gap convexity in the prior art do not conform to the actual conditions of the production site by providing a method for adjusting the finishing stand and a rolling line control system. technical issues

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