东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (10): 1424-1428.DOI: -

• 论著 • 上一篇    下一篇

梅钢1422精轧机组工作辊辊型优化与应用

夏小明;邸洪双;卞皓;张永雪;   

  1. 东北大学轧制技术及连轧自动化国家重点实验室;梅山钢铁公司热轧厂;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-10-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家重点基础研究发展规划项目(2006CB605208-1)

Optimization of work roll profile on finishing stands for 1422 hot-rolled strip in Meisteel

Xia, Xiao-Ming (1); Di, Hong-Shuang (1); Bian, Hao (2); Zhang, Yong-Xue (2)   

  1. (1) The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China; (2) The Hot Strip Mill, Meishan Iron and Steel Corporation, Nanjing 210039, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-10-15 Published:2013-06-20
  • Contact: Xia, X.-M.
  • About author:-
  • Supported by:
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摘要： 梅钢1422轧机经改造后,板形控制水平有了明显提高,但轧制到计划的中尾部便出现不稳定,产品的凸度和平直度不能满足市场要求,尤其是供冷轧基板的大凸度要求,而且板形模型也无法正常工作.为解决这一问题,在理论分析的基础上,通过对精轧机组F1～F3机架CVC工作辊辊型曲线优化以及F4～F6机架工作辊辊型的优化,使得带钢凸度命中率由原来的87%左右提高到98%,而且降低了工作辊的辊耗,提高了一个计划的同宽公里数与总公里数.同时由于提高了轧制稳定性,稳定批量生产出1.6mm×1185mm的箱板.

关键词: 平直度, 凸度, 工作辊, 辊型, 优化, CVC

Abstract: In Meisteel the control of strip shape has been improved obviously after reforming the finishing mill for hot-rolled strip. However, the middle part and tail of the strip become instable if the rolling process is in accordance to the rolling schedule, thus making the strip crown and flatness unsatisfiable to market demand especially the high-crown requirement of workpiece for cold rolling, with the strip shape model unable to work normally. To solve the problem, the CVC work roll profiles on the finishing stands F1~F3 and the work roll profiles on the stands F4~F6 are both optimized on the basis of theoretical analysis. Then, the hit ratio of target crown is increased from 87% to about 98% with the work roll wear-off reduced. As a result, the wearability of work rolls of the same width is scheduled in terms of kilometers, and the strip for containers(1.6 mm×1185 mm) is therefore supplied by Meisteel in batches because of its improved rolling stability.

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