Universal variable crown technology for strip profile control in wide strip rolling mills

被引：0
|
作者：
Cao J. [1 ,2 ,3 ,4 ]
Huang X. [1 ,2 ,3 ]
Zhao Q. [1 ,2 ,3 ,4 ]
Xiong H. [1 ,2 ,3 ]
Wang T. [1 ,2 ,3 ]
Zhang Z. [1 ,2 ,3 ]
机构：
[1] School of Mechanical Engineering, University of Science and Technology Beijing, Beijing
[2] Institute of Artificial Intelligence, University of Science and Technology Beijing, Beijing
[3] National Engineering Research Center of Flat Rolling Equipment, University of Science and Technology Beijing, Beijing
[4] Shunde Graduate School of University of Science and Technology Beijing, Foshan
来源：
Cao, Jianguo (geocao@ustb.edu.cn) | 1600年 / Central South University of Technology卷 / 51期
基金：
中央高校基本科研业务费专项资金资助;
关键词：
Electrical steel; Mathematic model; Profile and flatness control; Roll; Wide strip rolling mills;
D O I：
10.11817/j.issn.1672-7207.2020.10.009
中图分类号：
学科分类号：
摘要：
For solving the problem that the strip profile control ability declines fast in wide width range and the problem of insufficient profile control ability for narrow strip in variable crown strip profile control technology, the patented universal variable crown(UVC) roll contour design mathematical model was established, the roll contour design method that enhances strip profile control ability in a wide width range was proposed, and the roll gap crown control characteristics for different widths of strip were studied. Then, the UVC technology was applied to the industrial experiment by using 1450 hot strip mills. The results show that compared with the CVC technology widely used in strip rolling mills, the profile control ability of the UVC technology with the same roll gap crown control range increases by 91.71% in the range of 400 mm strip width change(950~1 350 mm), and the crown control range of the narrow strip increases by 142.99%. The stable UVC strip profile control technology can enhance profile and flatness controllability, effectively solve the problem that when the hydraulic bending force that is too large or even exceeds the limit, it is difficult to satisfy the need of SFR(schedule free rolling) for electrical steels and high precision of strip profile quality. After that, the UVC technology has applied to the stable industrial production of electrical steels and extended to the ordinary steel successfully. It provides the basis for the integration design of wide strip rolling mill type and improvement of integrated profile and flatness controllability of hot strip mills and tandem cold rolling mills. © 2020, Central South University Press. All right reserved.
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页码：2772 / 2781
页数：9
相关论文
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