ENG  Vol.3 No.9 , September 2011
Research on Single-Side Long Edge of Hot Rolled Strip Caused by Asymmetrical Stiffness of Mill Stand
Abstract
To analyze and solve the problem of single-side long edge of hot rolled strip in certain domestic factory, the asymmetrical deformation of rolls and strip in asymmetrical stiffness mill stand based on slit beam model, the strip profile and rolling force distribution at the exit of asymmetric stiffness stand mill were calculated using influence function method. Considering the character of in-site equipment and technology, a scheme of adjusting load distribution in finishing mill was made and the experiment was applied. Comparison of strip profile between new load distribution and the old one shows that the method can solve single-side long edge problem well.

Cite this paper
nullD. Gong, J. Xu, D. Zhang, Z. Guo and C. Yang, "Research on Single-Side Long Edge of Hot Rolled Strip Caused by Asymmetrical Stiffness of Mill Stand," Engineering, Vol. 3 No. 9, 2011, pp. 900-904. doi: 10.4236/eng.2011.39110.
References

[1]   P. M. Lugt and W. E. Tennapel, “The Influence of Elas-tic-Deformation of the Roll and the Sheet in a Hydrodynami-cally Lubricated Cold-Rolling Process,” Journal of Tribol-ogy-Transactions of the Asme, Vol. 117, No. 3, 1995, pp. 468-475.

[2]   D. X. Luo, Q. A. Chen and L. W. Liu, “Finite Element Analysis for Effect of Roll Radius on Metal Deforma-tion of Hot Rolling Plate,” Journal of Iron and Steel Research International, Vol. 12, No. 1, 2005, pp. 17-21.

[3]   V. Sal-ganik, “Mathematical Modelling of Roll Load and Deformation in a Four-High Strip Mill,” Journal of Materials Processing Technology, Vol. 125, 2002, pp. 695- 699. doi:10.1016/S0924-0136(02)00355-2

[4]   J. N. Sun, F. S. Du and X. T. Li, “FEM Simulation of the Roll Deformation of Six-high CVC Mill in Cold Strip Rolling,” Proceedings of 2008 International Workshop on Modelling, Simulation and Optimization, 27-28 December 2009, pp. 412-415.

[5]   V. B. Ginzburg, “High-Quality Steel Rolling: Theory and Practice,” Marcel Dekker, Inc. New York, 1993, pp. 26-27.

[6]   K. N. Shohet and N. A. Townsend, “Roll Bending Methods of Crown Control in Four-High Plate Mills,” Journal of Iron and Steel Institute, No. 11, 1969, pp. 11088-1098.

[7]   G. D. Wang, “Shape Control and Shape Theory,” Metallurgical Industry Press, Beijing, 1986, p. 11.

[8]   J. Xu, F. Zhang, D. Gong, et al., “Development of Calculation Module about Rolls Elasticity Deformation in 4 High Mill,” in Chinese, Steel Rolling, Vol. 20, No. 2, 2003, pp. 8-11.

[9]   J. Xu, D. Gong, D, W. Zhang, et al., “Model Building of the Initial Crown Effect Rate in 4-High Mill,” Journal of Materials Science and Technology, Vol. 21, No. 2, 2005, pp. 165-169.

[10]   D. Gong, J. Xu, Z. Jiang, et al., “Setup Models of Finishing Temperature and Rolling Speed for Hot Strip Mill,” Steel Research International, Vol. 81, No. 9, 2010, pp. 62-65.

 
 
Top