Volume 12 Number 6
December 2015
Article Contents
Chao-Chao Chen, Jian Shao, An-Rui He and Nan-Feng Zhang. Comprehensive Shape Control Technology for CSP Hot Strip Mills. International Journal of Automation and Computing, vol. 12, no. 6, pp. 611-619, 2015. doi: 10.1007/s11633-015-0939-1
Cite as: Chao-Chao Chen, Jian Shao, An-Rui He and Nan-Feng Zhang. Comprehensive Shape Control Technology for CSP Hot Strip Mills. International Journal of Automation and Computing, vol. 12, no. 6, pp. 611-619, 2015. doi: 10.1007/s11633-015-0939-1

Comprehensive Shape Control Technology for CSP Hot Strip Mills

  • Received: 2014-03-06
Fund Project:

This work was supported by Program for New Century Excellent Talents in University of Ministry of Education of China (No.NCET-10-0223), the Fundamental Research Funds for the Central Universities of China (No. FRF-TP-11-003A), and the 2012 National Science and Technology Support Program of China (No. 2012BAF09B04).

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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Comprehensive Shape Control Technology for CSP Hot Strip Mills

Fund Project:

This work was supported by Program for New Century Excellent Talents in University of Ministry of Education of China (No.NCET-10-0223), the Fundamental Research Funds for the Central Universities of China (No. FRF-TP-11-003A), and the 2012 National Science and Technology Support Program of China (No. 2012BAF09B04).

Abstract: With the increasing demand on higher strip quality, the profile and flatness of hot rolling strips have become subjects of concern, particularly for compact strip product (CSP) hot strip mills. Based on the roll contour, control model, and rolling process, a comprehensive shape control technology is proposed and applied to CSP hot strip mill of Lianyuan steel, which includes optimization and design of the work roll contour and varying contact back-up roll (VCR) plus backup roll contour, analysis of the flatness feedback control model, as well as improvement of the rolling process control system. The application of the technology has significantly improved the shape control performance. The roll wear is improved and the general roll consumption of the finishing mill is reduced by 29.86%. The percentages that satisfy the control target ranges of the average strip flatness and crown are increased by approximately 15.40% and 14.82%, respectively. The rejection rate of grade Q235 due to shape quality problem is reduced monthly by 39.69%, which creates significant economic benefits for the plant.

Chao-Chao Chen, Jian Shao, An-Rui He and Nan-Feng Zhang. Comprehensive Shape Control Technology for CSP Hot Strip Mills. International Journal of Automation and Computing, vol. 12, no. 6, pp. 611-619, 2015. doi: 10.1007/s11633-015-0939-1
Citation: Chao-Chao Chen, Jian Shao, An-Rui He and Nan-Feng Zhang. Comprehensive Shape Control Technology for CSP Hot Strip Mills. International Journal of Automation and Computing, vol. 12, no. 6, pp. 611-619, 2015. doi: 10.1007/s11633-015-0939-1
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