Abstract
In order to meet the severe requirements of market and reduce production costs of high quality steels, advanced run-out table cooling based on ultra fast cooling (UFC) and laminar cooling (LC) was proposed and applied to industrial production. Cooling mechanism of UFC and LC was introduced first, and then the control system and control models were described. By using UFC and LC, low-cost Q345B strips had been produced in a large scale, and industrial trials of producing low-cost dual phase strips were completed successfully. Application results show that the ultra fast cooling is uniform along the strip width and length, and does not affect the flatness of strips. The run-out table cooling system runs stably with a high precision, and makes it possible for the user to develop more high quality steels with low costs.
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SHIKANAI N, MITAO S, ENDO S. Recent development in microstructural control technologies through the thermo-mechanical control process (TMCP) with JFE steel’s high-performance plates [J]. JFE Technical Report, 2008, 11: 1–6.
OMATA K, YOSHIMURA H, YAMAMOTO S. Leading high performance steel plates with advanced manufacturing technologies [J]. NKK Technical Review, 2003, 88: 73–80.
WANG Guo-dong. New generation TMCP and innovative hot rolling process [J]. Journal of Northeastern University: Natural Science, 2009, 30(7): 913–922. (in Chinese)
WANG Guo-dong. The new generation TMCP with the key technology of ultra fast cooling [J]. Shanghai Metals, 2008, 30(2): 1–5. (in Chinese)
SIMON P, RICHE P. Ultra fast cooling in the hot strip mill [C]// Proceedings of 6th International Rolling Conference, Düsseldorf: VDEh, 1994: 179–183.
HOUYOUX C, HERMAN J C, SIMON P, de BEEK M O, RICHE P. Metallurgical aspects of ultra fast cooling on a hot strip mill [J]. Revue de Metallurgie, 1997, 97: 58–59.
SIMON P, FISCHBACH J P, RICHE P. Ultra fast cooling on the run-out table of the hot strip mill [J]. Revue de Metallurgie, 1996, 93(3): 409–415.
Super-OLAC H introduced at hot strip mill for automotive steel sheet production [EB/OL]. [2002-06]. http://www.jfe-holdings.co.jp/en/release/nkk/42-5/art06.html.
KAGECHIKA H. Production and technology of iron and steel in Japan during 2005 [J]. ISIJ International, 2006, 46(7): 939–958.
WANG Guo-dong, LIU Xiang-hua, SUN Li-gang, LIU Zhe, LIU De-qin. Ultra fast cooling on Baotou CSP line and development of 590 MPa grade C-Mn low-cost hot-rolled dual phase steel [J]. Iron and Steel, 2008, 43(3): 49–52. (in Chinese)
ZUMBRUNNEN D A, INCROPERA F P, VISKANTA R. Convective heat transfer distributions on a plate cooled by planar water jets [J]. Journal of Heat Transfer, 1989, 111(4): 889–896.
GUO R M. Heat transfer of laminar flow cooling during strip acceleration on hot strip mill run-out tables [J]. Trans ISS-AIME, 1993, 8: 49–59.
FILIPOVIC J, VISKANTA R, INCROPERA F P, VESLOCKI T A. Cooling of a moving steel strip by an array of round jets [J]. Steel research, 1994, 65(12): 541–547.
COX S D, HARDY S J, PARKER D J. Influence of run-out table operation setup on hot strip quality, subject to initial strip condition: Heat transfer issues [J]. Ironmaking and Steelmaking, 2001, 28(5): 363–372.
FUJIBAYASHI A, OMATA K. JFE steel’s advanced manufacturing technologies for high performance steel plates [J]. JFE Technical Report, 2005, 5: 10–15.
XIE Hai-bo, ZHANG Zhong-ping, LIU Xiang-hua, WANG Guo-dong. System optimization and self-adaptation of model parameters in laminar cooling of hot rolling strip [J]. Journal of Central South University: Science and Technology, 2006, 37(2): 317–323. (in Chinese)
LIU En-yang, PENG Liang-gui, ZHANG Dian-hua, CHEN Hua-xin, WANG Feng-xiang, GUO Hong-wei, YANG Gui-ling, WU Zong-liang. Research and application of laminar cooling control system under non-constant speed rolling [C]// Proceedings of the 10th International Conference on Steel Rolling. Beijing: Metallurgical Industry Press, 2010: 513–517.
KARLEKAR B V, DESMOND R M. Engineering heat transfer [M]. New York: West Publishing Company, 1977: 215–247.
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Foundation item: Project(50634030) supported by the National Natural Science Foundation of China
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Liu, Ey., Peng, Lg., Yuan, G. et al. Advanced run-out table cooling technology based on ultra fast cooling and laminar cooling in hot strip mill. J. Cent. South Univ. Technol. 19, 1341–1345 (2012). https://doi.org/10.1007/s11771-012-1147-6
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DOI: https://doi.org/10.1007/s11771-012-1147-6