东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (4): 528-531.DOI: -

• 材料与冶金 • 上一篇    下一篇

基于稳态误差的热连轧弹跳方程优化算法

彭文1，张殿华1，曹剑钊1，刘子英2   

  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.钢铁研究总院，北京100081)
  • 收稿日期:2012-11-08 修回日期:2012-11-08 出版日期:2013-04-15 发布日期:2013-06-19
  • 通讯作者: 彭文
  • 作者简介:彭文(1987-)，男，山东青州人，东北大学博士研究生；张殿华(1963-)，男，内蒙古赤峰人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51074051)；中央高校基本科研业务费专项资金资助项目(N110307001).

Optimization Algorithm of Spring Equation in Tandem Hot Rolling Based on Static Errors

PENG Wen1， ZHANG Dianhua1， CAO Jianzhao1， LIU Ziying2   

  1. 1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China; 2. Central Iron and Steel Research Institute， Beijing 100081， China.
  • Received:2012-11-08 Revised:2012-11-08 Online:2013-04-15 Published:2013-06-19
  • Contact: PENG Wen
  • About author:-
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摘要： 热连轧带钢生产过程中，在停轧、换辊后会出现带钢厚度精度低的情况，影响到带材的成材率.为解决此问题，提出了新的轧辊磨损和热膨胀模型，并引入模型稳态误差量的概念，对弹跳方程进行优化改进.现场实际应用效果表明:换辊后首块钢的厚度偏差在40μm范围内达到90%以上，长时间停轧之后厚度偏差提高到30μm以内，满足自动厚度控制系统(AGC)的控制要求，提高了产品的成材率.并给出了弹跳方程稳态误差的普遍求解方案，模型在线使用效果良好，适于工业推广.

关键词: 模型计算, 厚度精度, 轧辊磨损, 热膨胀, 稳态误差

Abstract: In the hot strip steel continuous rolling process， when rolling suspended or roll changed， the thickness of the following strip steel was out of the precise control level which affected the yield of the strip. To solve the problem， the roll wear model and thermal expansion model were proposed， and the steady state error was put into the models to improve the spring equation. Practical application results showed that the first piece strip steel of the thickness deviation within 40μm range after changing rolls was up to 90%， and the thickness accuracy reached within 30μm under different rolling intervals， which met the requirement of the automatic gauge control system and improve the product yield. The generic solution of the steady state error in the spring equation was provided. The proposed model was online used properly for a long time， and it was suitable for the industrial production.

Key words: model calculation, thickness precision, roll wear, thermal expansion, static error

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