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 highestrolling 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 reduction load distribution method for a double-stand medium and heavy plate production line, which belongs to the field of optimization control of the production process of a medium and heavy plate rolling production line. Background technique [0002] The production process of medium and heavy plates includes heating the billet to an appropriate temperature before rolling, controlling the amount of deformation and 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 rolling process of medium and heavy plates usually includes three rolling stages: the stage of simultaneous deformation and recrystallization of austenite, the stage of low-temperature austenite deformation, and the stage of two-phase austenite and ferrite deformation. Generally, the rol...

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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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