Pressing load distribution method for double-stander medium plate production line

Abstract

The invention relates to a pressing load distribution method for a double-stander medium plate production line, which belongs to the field of optimization control for a production process of a medium plate rolling production line. Based on meeting the holding condition, according to the basic thought of solving a belt restraint problem by a penalty function, an optimization function using highest rolling line production efficiency as an optimization target is constructed; and iteration optimization is carried out by adopting a golden section method so as to realize the load distribution of total pressing quantity between double standers and effectively improve the production efficiency of a rolling line.

Description

technical field [0001] The invention relates to a method for distributing the pressing load of a double-stand medium-thick plate production line, which belongs to the field of optimization control of the production process of the medium-thick plate rolling production line. Background technique [0002] The production process of medium and heavy plates includes heating the billet to a suitable temperature before rolling, controlling the deformation amount and deformation temperature during rolling, and cooling the rolled piece according to the process requirements after rolling, so that the rolled piece finally meets the requirements of the finished product size and performance indicators . [0003] The plate rolling process usually includes three rolling stages: simultaneous deformation and austenite recrystallization stage, low temperature austenite deformation stage, and austenite and ferrite two-phase region deformation stage. Generally, the rolling process of medium and...

AI Technical Summary

Problems solved by technology

However, for the medium and heavy plate rolling production line, the distance between the two rolling mills is generally greater than 70 meters, so the two rolling mills usually cannot realize the continuous rolling process; In the process, after the steel plate is rolled to a certain temperature, it needs to be subjected to temperature treatment, so the serial rolling process cannot be used.

In short, in the medium and heavy plate double-stand production line, the method of "rough rolling reversible rolling mill tandem rolling process" proposed by Liu Xiandong et al. cannot be applied to actual production

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