A New Approach of Combined Shape and Gauge Control

Abstract:

Due to the coupled function of shape and gauge control in rolling process, mutual effects must be considered when shape control or gauge control is carried out. Traditional shape and gauge control theories are of independent and the control systems are also separated, so it is difficult to ensure the quality of shape and gauge simultaneously. Based on the updated shape theory and a single parameter model of load distribution method, a combined shape and gauge control method was developed, which can adjust rolling regulations on-line according to the deviation of strip crown measured at the exit of the rolling mill. The method can ensure gauge precision while strip crown is adjusted and the purpose of combined shape and gauge control is reached.

• Periodical: Advanced Materials Research (Volume 145)
• Pages: 123-127
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.145.123
• Online since: October 2010
• Authors: Xiao Ping Zhang, Chang Jian Zhi, Bao Sun, Xiao Zhong Du, Jin Zhi Zhang
• Keywords: Continuous Hot Plate and Strip Rolling, Function Φ, Gauge Control, Load Distribution, Rolling Regulations, Shape Control

References

[1] G.Y. Zhou: Mechanization and Automation of Wide Steel Strip Tandem Mill (Metallurgical Industry Press, China 1998) (In Chinese).

[2] J.G. Wistreich: in: BISRA Open Report, UK, No. EG/-/20/70.

[3] M. Tarokh: in: Proc. of Con. on Measurement and Control (London, UK, 1972), p.42.

[4] A.M. Bai: Steel Rolling, Vol. 18 (2001), No. 1, p.10 (In Chinese).

[5] J.Z. Zhang: Metallurgical Equipment, Vol. 123 (2000), No. 5, p.6 (In Chinese).

[6] H.B. Yu: Study on Integrated Optimum Control for Shape and Gauge Control of Four-high Cold Reversing Rolling (MS., Northeastern University, China 1986) (In Chinese).

[7] D.J. Fapiano: Iron and Steel Engineer, Vol. 65 (1988), No. 4, p.24.

[8] S. Burras: Steel Times, (1995), No. 4, p.40.

[9] D.K. Zhu, Q.D. Zhang, G.C. Wei, et al: Steel Rolling, Vol. 18 (2001), No. 2, p.9 (In Chinese).

[10] J.G. Cao, J. Zhang, X.L. Chen, et al: Journal of University of Science and Technology Beijing, Vol. 22 (2000), No. 6, p.551 (In Chinese).

[11] J.G. Cao, G.C. Wei, X.L. Chen, et al: Journal of University of Science and Technology Beijing, Vol. 23 (2001), No. 5, p.452 (In Chinese).

[12] Y.L. Yao: Study on Adaptive Decoupling Control and Its Application in Integrated Shape and Gauge Control (Ph.D., Shanghai University, China 2007) (In Chinese).

[13] G. Wu: Multivariable Fuzzy Controller and Its Application in Integrated Shape and Gauge Control System Based on Genetic Algorithm (Ph.D., University of Science and Technology Beijing, China 2001) (In Chinese).

[14] X.P. Zhang: Study of Plate Shape and Its Influence Factors (Ph.D., Beihang University, China 2008) (In Chinese).

[15] L. Xu: On Integrated Control for Flatness and Gauge (Ph.D., Northeastern University, China 2006) (In Chinese).

[16] J.Z. Zhang: Science in China, Vol. 30 (2000), No. 2, p.187 (In Chinese).

[17] I. Imai: Journal of Materials Processing Technology, Vol. 5 (1964), No. 44, p.573.