A thickness control compensation method for acceleration and deceleration process of cold continuous rolling of ultra-high strength steel

By establishing an evaluation model to optimize the tension setting values ​​before and after rolling, and considering multiple factors, the problem of thickness control accuracy during the acceleration and deceleration process of ultra-high strength steel cold continuous rolling was solved, achieving higher production efficiency and quality.

CN117619899BActive Publication Date: 2026-05-19BAOSHAN IRON & STEEL CO LTD
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Patent Information

Application Number
CN202210966272.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-12
Publication Date
2026-05-19
Estimated Expiration
2042-08-12

AI Technical Summary

Technical Problem

In the current technology for cold continuous rolling of ultra-high strength steel, the thickness control method only considers a single factor during acceleration and deceleration, resulting in large differences in thickness between the beginning and end, making it difficult to meet the requirements for high-precision thickness.

Method used

By establishing an evaluation model based on the strip exit thickness deviation rate, and combining historical actual values ​​of rolling force, inlet speed, exit speed, inlet thickness, and exit thickness for each stand, the front and rear tension settings are optimized to achieve thickness control.

Benefits of technology

It improved the thickness accuracy of strip steel exit, enhanced production efficiency and quality, and brought economic benefits to the ultra-high strength steel unit on site.

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Abstract

A kind of thickness control compensation method for ultra-high strength steel cold continuous rolling acceleration and deceleration process, by the evaluation model based on strip outlet thickness out-of-tolerance rate set, in combination with the actual value of each rack rolling force, each rack inlet speed, each rack outlet speed, each rack inlet thickness, each rack outlet thickness, the optimization evaluation of set front tension and set rear tension is completed, according to the evaluation result, the optimization of front tension and rear tension set value is completed, and the thickness control compensation of ultra-high strength steel cold continuous rolling acceleration and deceleration process is completed accordingly.A kind of thickness control compensation method for ultra-high strength steel cold continuous rolling acceleration and deceleration process according to actual multidimensional data and in combination with the evaluation model set, establishes the thickness control compensation optimization based on multiple factors.
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