东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (10): 1431-1435.DOI: 10.3969/j.issn.1005-3026.2015.10.014

• 材料与冶金 • 上一篇    下一篇

热轧带钢X80超快冷出口温度高精度控制方法

李旭东1, 袁国1, 江潇2, 王国栋1   

  1. (1. 东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳110819; 2. 首钢迁钢公司, 河北 迁安064400)
  • 收稿日期:2014-03-07 修回日期:2014-03-07 出版日期:2015-10-15 发布日期:2015-09-29
  • 通讯作者: 李旭东
  • 作者简介:李旭东(1987-),男,河北唐山人,东北大学博士研究生; 王国栋(1942-),男,辽宁大连人,东北大学教授,博士生导师,中国工程院院士.
  • 基金资助:
    “十二五”国家科技支撑计划项目(2012BAF04B01).

High Precision Outlet Temperature Control Methods of Ultra Fast Cooling for X80 Hot-Rolled Strips

LI Xu-dong1, YUAN Guo1, JIANG Xiao2, WANG Guo-dong1   

  1. 1. State Key Laboratory of Rolling & Automation, Northeastern University, Shenyang 110819, China; 2. Shougang Qiangang Company, Qianan 064400, China.
  • Received:2014-03-07 Revised:2014-03-07 Online:2015-10-15 Published:2015-09-29
  • Contact: LI Xu-dong
  • About author:-
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摘要: 针对X80管线钢超快冷生产过程,基于传热学基本理论,建立了超快冷温度控制模型.通过对带钢超快冷过程温度场模拟,开发了X80管线钢超快冷控制策略,得出超快冷以均匀模式开启初始组态并采用正向增开策略有利于超快冷精度的提高及带钢芯表温差的减小.针对工艺条件波动对控制精度的影响,开发了超快冷自适应系统,实现了带钢超快冷出口温度实时及卷间修正.现场应用取得良好效果,为控冷工艺的实施提供支撑.

关键词: 温度控制精度, 热轧带钢, 超快冷, 控制策略, 自适应系统

Abstract: According to the rolling process of X80 pipeline steels and the basic theories of heat transfer, a cooling control model of ultra-fast cooling (UFC) was established. A UFC control strategy of X80 pipeline steel was developed by simulating the temperature field of UFC process for the steel strip. The results showed that the uniform mode starting initial configuration and the use of forward additional strategies were benefited for the high UFC control precision and low temperature deviation between the steel centre and surface. To deal with influences of the technological condition fluctuations, an adaptive system of UFC was developed to correct temperature deviation in real-time and that between steel coils at UFC outlet. A satisfied result was achieved in field practice, which provided technology supports for the implementation of controlled cooling process.

Key words: control precision of temperature, hot-rolled strips, ultra-fast cooling (UFC), control strategy, adaptive system

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