|
|
|
| Comprehensive Shape Control Technologies of High Strength Low-Alloy Steel in Hot Strip Mills |
| CHEN Chao-chao1,HE An-rui1,SHAO Jian1,LIU Jian-hua2,ZHOU Jie2 |
1. National Engineering Research Center for Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China
2. 2250 Hot Strip Mill, Hunan Valin Lianyuan Iron and Steel Co., Ltd., Loudi 417009, Hunan, China |
|
|
|
|
Abstract With the wide use of high strength low-alloy steel, the profile and flatness of HSLA steel becomes a subject of concern, especially for the problem of lager profile. Based on roll shape, control model and roll process, comprehensive shape control technologies including the optimization and design of work roll contour and VCRplus backup roll contour, the digestion and research of crown feedback control model and the optimization of finisher load distribution were put forward and applied to production on the 2250 mm hot strip mill at Lianyuan. The application of such technologies significantly improved the shape control effects of HSLA steel. The percentage satisfying the control target range of average strip crown of HSLA steel had about 37.98% increase, especially for the heavy gauge, the hit rate of average strip crown was increased from 25.48% to 95.89%. And the roll wear was improved and the general roll consume of finishing mill was reduced by 23.29%, which prolonged the rolls’ service lives and created great economic benefits for the enterprise.
|
|
Received: 17 June 2013
Published: 28 April 2014
|
|
|
|
| [1] |
陈先霖, 张杰, 张清东, 等. 宽带钢热连轧机板形控制系统的开发[J]. 钢铁, 2000, 35(7): 28-33.
|
| [1] |
陈先霖, 张杰, 张清东, 等. 宽带钢热连轧机板形控制系统的开发[J]. 钢铁, 2000, 35(7): 28-33.
|
| [2] |
徐建忠, 龚殿尧, 刘相华, 等. 单位宽度轧制力对热轧带钢凸度的影响规律[J]. 东北大学学报(自然科学版), 2003, 24(3): 280-283.
|
| [2] |
徐建忠, 龚殿尧, 刘相华, 等. 单位宽度轧制力对热轧带钢凸度的影响规律[J]. 东北大学学报(自然科学版), 2003, 24(3): 280-283.
|
| [3] |
Klockner J. CVC Technology for Hot Rolling Mills [J]. Metallurgical Plant and Technology International, 1988, 65(5): 24.
|
| [3] |
Klockner J. CVC Technology for Hot Rolling Mills [J]. Metallurgical Plant and Technology International, 1988, 65(5): 24.
|
| [4] |
何安瑞, 黄涛, 杨荃, 等. 热带钢轧机板形综合控制技术开发[J]. 北京科技大学学报, 2007, 29(5): 519-522.
|
| [4] |
何安瑞, 黄涛, 杨荃, 等. 热带钢轧机板形综合控制技术开发[J]. 北京科技大学学报, 2007, 29(5): 519-522.
|
| [5] |
HE An-rui, YANG Quan, CHEN Xian-lin, et al. Profile and flatness control system in 1700 mm hot strip mills of ansteel. Chinese Journal of Mechanical Engineering (English Edition), 2008, 21(3): 103-107.
|
| [5] |
HE An-rui, YANG Quan, CHEN Xian-lin, et al. Profile and flatness control system in 1700 mm hot strip mills of ansteel. Chinese Journal of Mechanical Engineering (English Edition), 2008, 21(3): 103-107.
|
| [6] |
邵健, 何安瑞, 杨荃, 等. 热轧宽带钢自由规程轧制中负荷分配优化研究[J]. 冶金自动化, 2010, 34(3): 19-24.
|
| [6] |
邵健, 何安瑞, 杨荃, 等. 热轧宽带钢自由规程轧制中负荷分配优化研究[J]. 冶金自动化, 2010, 34(3): 19-24.
|
| [1] |
CHEN Deng-fu, XU Pei, LONG Mu-jun, DUAN Hua-mei, YANG Jie, WU Shi-xin. Development and investigation of advanced process model for secondary cooling in continuous casting of molten steel[J]. Iron and Steel, 2020, 55(3): 40-49. |
| [2] |
YUAN Guo,CHEN Dong,KANG Jian,LI Zhen- lei,WANG Guo- dong. Development and application of NG- TMCP technology based on ultra- fast cooling for large scale hot rolled strip lines[J]. , 2019, 31(2): 150-158. |
| [3] |
ZHANG Dian- hua,SUN Jie,CHEN Shu- zong,LI Xu. Intelligent optimization control of tandem cold rolling process for high precision thin strip[J]. , 2019, 31(2): 180-189. |
| [4] |
LI Bo-qun1， FAN Xuan1， LI Wei-hong1,ZHANG Da-qing1， FAN Chui-lin2. Parameter optimization of shape setting model and application of control technology[J]. Iron and Steel, 2019, 54(2): 41-47. |
| [5] |
XIA Xiao-ming,ZHANG Feng-xian,ZHANG Cui,WANG Ning-ning. Development and application of variable gauge rolling for a slab in traditional hot strip mill[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(11): 976-981. |
| [6] |
LI Guang-hui. EVC-Plus technique of transverse thickness deviation control of non-oriented silicon steel during cold rolling[J]. Iron and Steel, 2018, 53(8): 68-72. |
|
|
|
|
2014, Vol. 49 
