Building the Mathmatical Model of Elastic Deformation for Rolls System by Four-High Mill Strip Rolling with a Composite Back-Up Roll

Abstract:

For buliding the mathmatical model of elastic deformation for rolls system with a composite back-up roll assemblled by the shrinkage fit, the roll sleeve and roll mandrel was studied individually, the bending force was acted on the working roll and the load acted on the contact zone was discreted segment by segment, then the deflection model of the working roll and the roll sleeve and roll mandrel was put forward based on the influence function method. According to the force equilibrim function and the deformation compatibility function between the roll sleeve, the roll mandrel and working roll, the solution matrix was listed and the solving programe was compiled to solve the deflection of working roll and composite back-up roll, the pressure between the working roll and the roll sleeve and the cross-section thickness of rolled strip. Therefore, it is an important theoretical foundation to improve the manufacturing technology and practical application of the composite back-up roll.

• Periodical: Advanced Materials Research (Volume 413)
• Pages: 320-325
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.413.320
• Online since: December 2011
• Authors: Yong Gang Dong, Ming Jia Wang, Yu Long Su
• Keywords: Back-Up Roll, Composite, Discrete, Elastic Deformation, Influence Function Method

References

[1] FU Han-guang , XING Jian-dong , ZHAO Ai-min , et al. Centrifugal Casting of High Speed Steel/ Nodular Cast Iron Compound Roll Collar[J]. Journal of Iron and Steel Research, International, 2002, 9 (1): 32-35.

[2] H.Y. Kima, C. Kimb, W.B. Bae, et al. Development of optimization technique of warm shrink fitting process for automotive transmission parts(3D FE analysis)[J]. Journal of Materials Processing Technology, 2007, (187-188): 458-462.

DOI: 10.1016/j.jmatprotec.2006.11.107

[3] Shimizu M, Shitamura O, Matsuo S, et al. Development of high performance new composite roll[J]. ISIJ International, 1992, 32(11): 1244−1249.

DOI: 10.2355/isijinternational.32.1244

[4] Kamamoto S, FujiwaraY, Hayashi Y, et al. Analysis of shrinking-fitting for sleeved back-up rolls[J]. Research and Development Kobe Steel Engineering Reports, 1985, 35(1): 73-76.

[5] X. Chen, R. Balendra, and Y. Qin. A new approach for the optimization of the shrink-fitting of cold-forging dies[J]. Journal of Materials Processing Technology, 2004, 145(2): 215-223.

DOI: 10.1016/s0924-0136(03)00672-1

[6] Abdelkhalek, S., Montmitonnet, P., Potier-Ferry, M., et. al. Strip flatness modelling including buckling phenomena during thin strip cold rolling[J]. Ironmaking and Steelmaking, 2010, 37 (4): 290-297.

DOI: 10.1179/030192310x12646889255708

[7] Abdelkhalek, S., Montmitonnet, P., Potier-Ferry, M., et. al. Coupled approach for flatness prediction in cold rolling of thin strip[J]. International Journal of Mechanical Sciences, 2011, 53(9): 661-675.

DOI: 10.1016/j.ijmecsci.2011.04.001

[8] Yu Meng , Zhang Qingdong, Wang, Bo, et. al. Research on rolling model based on non-circular contact arc for cold strip temper rolling[J]. Advanced Materials Research, 2011, 145: 223-229.

DOI: 10.4028/www.scientific.net/amr.145.223

[9] Cao Jian Guo, Zhang Yong, Yang Guatng Hui, et. al. Intermediate roll contour of 6-hi UCM cold rolling mill[J]. Journal of Central South University (Science and Technology), 2011, 42 (4): 966-971 (In Chinese).

[10] Vladimir B Ginzburg. High quality Steel Rolling: Theorery and Practice[M]. Translated by Jiang Mingdong and Wang Guodong. Beijing: Metallurgical Industry Press, 2000: 293-299(in Chinese).

[11] The Iron and Steel Institute of Japan. Theorery and Practice in strip or plate rolling[M]. Translated by Wang Guodong and Wu Guoliang. Beijing: Chinese Railway Press. 1990: 115-119(in Chinese).