Abstract
To implement SFR (Schedule-free Rolling) is an effective way to organize production flexibly and maximize production efficiency in hot rolling. In order to meet the increasingly stringent requirements of PCFC (Profile Contour and Flatness Control) of multiple-width electrical steel strips in hot rolling, the innovative ASR (asymmetry self-compensating rolling) technology is developed that has crown control, edge drop control, and wear control abilities simultaneously. Based on the ASR principle for multiple-width electrical steel, the ASR work rolls, the ASR shifting strategy, and the arranged SFR plan with a width group scheme are developed for SFR of multiple-width electrical steel strips. A comparative study on the strip profile and flatness control performance of CVC, K-WRS, and ASR technologies with work roll wear contours variation within the entire rolling campaign is carried out. The ASR technology of multiple-width electrical steel strips has been industrially tested and applied on the production hot strip mills with the high-quality crown hit rate increased and work roll wear contours improved significantly, which provides an innovative way to new generation high-tech PAI (PCFC All-in-one Integrated, “π” briefly) hot strip mills.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Chen, X.L.: Development trend of a new generation of high-tech cold strip rolling mill. Shanghai Metal 17(4), 1–8 (1995)
Wang, G.D.: Discussion on the innovation direction of whole process and integrated process technology in steel. J. Iron Steel Res. 30(01), 1–7 (2018)
Cao, J.G., Chai, X.T., Li, Y.L., Kong, N., Jia, S.H., Zeng, W.: Integrated design of roll contours for strip edge drop and crown control in tandem cold rolling mills. J. Mater. Process. Technol. 252, 432–439 (2017)
Klamma, K.: CVC Technology in cold rolling mills. MPT Metall. Plant Technol. 8(3), 60–62 (1985)
Kitahama, M., Yarita, I., Abe, H., Awazuhara, H.: Profile control of hot rolled strip by working roll shifting (k-WRS) mill. Iron Steel Eng. 64(11), 34–43 (1987)
Naganuma, Y., Ogai, H., Masuda, S.: Shape and profile control for hot strip rolling. Nippon Steel Techno. Rep. 27, 43–49 (1985)
Seilinger, A., Mayrhofer, A., Kainz, A.: SmartCrown-a new system for improved profile and flatness control in rolling mills. Rev. Met. Paris 100, 43–48 (2003)
Berger, S., Hoen, K., Hof, H., Krmer, S., Seidel, J., Sudau, P.: Evolution of CVC plus technology in hot rolling mills. Revue de Metallurgie 105(1), 44–49 (2008)
Ikuo, Y., Masanori, K., Toshiki, H., Kenmochi, K., Tateno, J.: Transverse thickness profile control in hot and cold strip rolling by tapered-crown work roll shifting(K-WRS) mill. SEAISI Quar. 27(3), 26–34 (1998)
Cao, J.G., Liu, S.J., Zhang, J., Song, P., Yan, T.L., Zhou, Y.Z.: ASR work roll shifting strategy for schedule-free rolling in hot wide strip mills. J. Mater. Process. Technol. 211(11), 1768–1775 (2011)
John, S., Mukhopadhyay, A., Sikdar, S.: Optimisation of work roll shifting and bending to roll thinner gauge HR coils using genetic algorithm. Ironmak. Steelmak. 33(1), 67–73 (2006)
Shinya, Y., Masaru, M., Keisuke, K., Tatsuya, J.: Work roll shifting method by optimum calculation of work roll profile in hot strip rolling. Procedia Eng. 207, 1320–1325 (2017)
Cao, J.G., Xiong, H.T., Huang, X.H., Zhao, Q.F., Li, Y.L., Liu, S.Q.: Work roll shifting strategy of uneven “Cat Ear” wear control for profile and flatness of electrical steel in schedule-free rolling. Steel Res. Int. 91(9), 1–11 (2020)
Acknowledgements
This work was supported by the Scientific and Technological Innovation Foundation of Foshan (BK22BE019), the University Teachers Characteristic Innovation Research Project of Foshan (2021DZXX20), the National Major Science and Technology Project of China (2019ZX06002001-004), and the Innovation Method Fund of China (2016IM010300).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Cao, J., Song, C., Wang, L., Zhao, Q., Xiao, J., Sun, L. (2024). Innovative ASR Technology for Profile Contour and Flatness Control of Electrical Steel in Multiple-Width Schedule Free Rolling. In: Mocellin, K., Bouchard, PO., Bigot, R., Balan, T. (eds) Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity. ICTP 2023. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-41023-9_25
Download citation
DOI: https://doi.org/10.1007/978-3-031-41023-9_25
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-41022-2
Online ISBN: 978-3-031-41023-9
eBook Packages: EngineeringEngineering (R0)