Comprehensive optimization setting method for rolling schedule of ultrahigh-strength steel of six-rack cold continuous rolling unit

Abstract

The invention discloses a comprehensive optimization setting method for a rolling schedule of ultrahigh-strength steel of a six-rack cold continuous rolling unit, and the method comprises the following steps: firstly, collecting basic equipment parameters of the six-rack cold continuous rolling unit and related parameters of ultrahigh-strength steel to be rolled; then calculating a reduction distribution result X gamma, a reduction distribution fine adjustment result XZ, a reduction distribution optimal solution Xy and a tension system optimal solution XT based on capability input ratio homogenization of each rack device; and finally, completing the comprehensive setting of the rolling schedule according to the obtained optimal data. When the method disclosed by the invention is applied, the capability of rolling mill equipment of each rack is ensured to be in a relatively uniform state, and the respective advantages and characteristics of a small-roller-diameter rolling mill and a conventional rolling mill are fully exerted, so that the pressing distribution and tension system stable complementary type rolling schedule comprehensive optimization setting method in the ultra-high-strength steel cold continuous rolling process is formed, the utilization optimization of the comprehensive rolling capacity of the unit is realized, and the rolling stability and the finished product quality in the cold continuous rolling process of the ultrahigh-strength steel are guaranteed.

Description

Technical field [0001] The present invention relates to the field of cold rolling technology, and in particular, a comprehensive optimization setting method for ultra-high strong steel rolling procedures for a six-machine cold rolling unit. Background technique [0002] At present, with the rapid development of the automobile industry, the automobile is lightweight into the inevitable trend of national economic development. In order to reduce the weight of the car, reduce energy consumption, improve the safety performance of the car, the market prospect of high-intensity automobile steel has become more and more broad, gradually Become a new favorite of the car board. Generally, the tensile strength of the general automotive plate is 350 MPa to 1180 MPa. Since the thin size of ultra-high strong steel is always in the ordinary five-rack cold and rolling unit, there is always a problem of overrunning the rolling force, and it has to be carried out in the single-frame small roller r...

AI Technical Summary

Problems solved by technology

Moreover, the comprehensive rolling capacity of the small-diameter rolling mill and the conventional rolling mill is different, and the setting of the rolling schedule will also affect the comprehensive rolling capacity of the two types of rolling mills in the process of continuous cold rolling of ultra-high-strength steel.

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