|
|
Development of New Generation Cooling Control System After Rolling in Hot Rolled Strip Based on UFC |
LI Hai-jun,LI Zhen-lei,YUAN Guo,WANG Zhao-dong,WANG Guo-dong |
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China |
|
|
Abstract Ultra-fast cooling (UFC) is an advanced technology in hot rolling field. Through this technology, great changes on the run-out table are produced in the strip cooling process. In order to adapt to these changes, a new generation of hot strip cooling control system after rolling was developed based on the UFC basic principle. The system can not only accomplish temperature of UFC delivery side, coiling temperature, cooling rate, etc, and multi-objective accuracy control, but also offer more flexibility and new attractive possibilities in terms of cooling pattern on the run-out table, which could be of prime importance for the production of some difficult steels. In addition, through the time-velocity-distance (TVD) profile prediction combined with speed feed-forward control and coiling temperature feedback control, the coiling temperature control precision can be effectively improved during accelerative rolling in the system. At present, the system has been successfully used in the conventional strip production line and CSP short process production line, and its application effect is perfect.
|
Received: 12 December 2011
Published: 16 July 2013
|
Corresponding Authors:
LI Hai-Jun
E-mail: lihj@ral.neu.edu.cn
|
|
|
|
[1] |
LI Wei- gang��,DENG Ken,LIU Ao,LIU Bin,LIU Xiang- hua. Intelligent setting method of strip profile in PC mill based on case study[J]. Chinese Journal of Iron and Steel, 2017, 29(8): 654-659. |
[2] |
LI Wei-gang����FENG Ning��WANG Shen-de��YAN Bao-kang. Research and development of deformation desistance model for phase transformation process of hot-rolled strips[J]. Chinese Journal of Iron and Steel, 2017, 52(6): 61-66. |
[3] |
SUN Yan��kun,ZHANG Wei,,WU Di. Industrial experiment of ultra��fast cooling for large��section bearing steel bar[J]. Chinese Journal of Iron and Steel, 2017, 29(3): 180-184. |
[4] |
XU Xiao-qing,,HAO Xiao-dong,FU Song-lin��ZHOU Shi-guang ,LIU Chang-sheng,ZHANG Qi-fu. Cooling route control based on temperature observer for laminar cooling process[J]. Chinese Journal of Iron and Steel, 2017, 29(1): 81-86. |
[5] |
WEI Bing��HAN Bin��YANG Yi��LIU Yang��TAN Wen��WANG Shui-ze. Cause analysis of typical surface defect of hot-rolled ultra-low carbon steel[J]. Chinese Journal of Iron and Steel, 2016, 34(2): 42-46. |
[6] |
YANG Geng-wei,MAO Xin-ping,,ZHAO Gang,GAN Xiao-long,,DA Chuan-li,HE Xian-ling. Microstructure, mechanical properties and strengthening mechanisms of Ti microalloyed high strength hot strip steel[J]. Chinese Journal of Iron and Steel, 2016, 28(12): 75-79. |
|
|
|
|