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| Rectangular Section Control Technology for Silicon Steel Rolling |
| Xiao-chen WANG,Quan YANG,You-zhao SUN |
| National Engineering Research Center of Flat Rolling Equipment, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract Rectangular section control technology (RSCT) was introduced to achieve high-precision profile control during silicon steel rolling. The RSCT principle and method were designed, and the whole RSCT control strategy was developed. Specifically, RSCT included roll contour design, rolling technology optimization, and control strategy development, aiming at both hot strip mills (HSMs) and cold strip mills (CSMs). Firstly, through the high-performance variable crown (HVC) work roll optimization design in the upper-stream stands and the limited shifting technology for schedule-free rolling in the downstream stands of HSMs, a hot strip with a stable crown and limited wedge, local spot, and single wave was obtained, which was suitable for cold rolling. Secondly, an approximately rectangular section was obtained by edge varying contact (EVC) work roll contour design, edge-drop setting control, and closed loop control in the upper-stream stands of CSMs. Moreover, complex-mode flatness control was realized by coordinating multiple shape-control methods in the downstream stands of CSMs. In addition, the RSCT approach was applied in several silicon-steel production plants, where an outstanding performance and remarkable economic benefits were observed.
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Received: 13 November 2014
Published: 06 March 2015
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| Fund:National Natural Science Foundation of China;National Key Technology R&D Program of the 12th Five-year Plan of China;the Fundamental Research Funds for the Central Universities |
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| [1] |
Si-qian Bao,,*,Yang Xu,Gang Zhao,,Xiang-bin Huang,Huan Xiao,Chuan-long Ye, Na-na Song,Qing-ming Chang. Microstructure, texture and precipitates of grain-oriented silicon steel produced by thin slab casting and rolling process[J]. Chinese Journal of Iron and Steel, 2017, 24(1): 91-96. |
| [2] |
Bing FU,,Hai-jun WANG,Jian-xin YAN,,Li XIANG,Sheng-tao QIU,Guo-guang CHENG. Effects of Temperature and Alloying Elements on �� Phase Fraction of Grain-oriented Silicon Steel[J]. Chinese Journal of Iron and Steel, 2016, 23(6): 573-579. |
| [3] |
Jos�� Angel BARRIOS,C��sar VILLANUEVA,Alberto CAVAZOS,Rafael COL��S. Fuzzy C-means Rule Generation for Fuzzy Entry Temperature Prediction in a Hot Strip Mill[J]. Chinese Journal of Iron and Steel, 2016, 23(2): 116-123. |
| [4] |
Wei-gang LI,Chao LIU,Ning FENG,Xi CHEN,Xiang-hua LIU. Friction Estimation and Roll Force Prediction during Hot Strip Rolling[J]. Chinese Journal of Iron and Steel, 2016, 23(12): 1268-1276. |
| [5] |
Gong-tao LIU,Zhi-qiao LIU,Ping YANG,Wei-min MAO. Correlation between Primary and Secondary Recrystallization Texture Components in Low-temperature Reheated Grain-oriented Silicon Steel[J]. Chinese Journal of Iron and Steel, 2016, 23(11): 1234-1242. |
| [6] |
Zhen LI, , Cheng-jun LIU , Qun SUN , Mao-fa JIANG. Effect of Deoxidation Process on Distribution Characteristics of Inclusions in Silicon Steel Slabs[J]. Chinese Journal of Iron and Steel, 2015, 22(Supplement 1): 104-110. |
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2015, Vol. 22 
