The automatic tension control system of the three-stand continuous roughing train of the 2000 hot-rolling mill at the Magnitogorsk Metallurgical Combine is analyzed. Deviations in interstand tension that are several-fold higher than the set values and inadmissible compression are detected. The causes of poor tension control are determined, such as a large error in measured roll pressure and short response time of the system. An improved method for automatic tension control is developed. It involves combining speed-difference tension control during free rolling and static-current tension control during multi-stand rolling on three stands. A functional block diagram of the system implementing the method is considered. Experimental data obtained on the 2000 mill are presented. The basic advantages of the system that demonstrate its efficiency are indicated.
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References
A. A. Voskan’yants, Automated C ontrol of Rolling Processes, MGTU im. Baumana, Moscow (2010).
V. R. Khramshin, A. S. Karandaev, S. A. Evdokimov, et al., “Reduction of the dynamic loads in the universal stands of a rolling mill,” Metallurgist, 59, No. 3–4, 315–323 (2015), doi https://doi.org/10.1007/s11015-015-0103-8.
A. S. Karandaev, V. R. Khramshin, V. V. Galkin, and A. N. Gostev, “Improving the algorithm of matching the motor speeds of the roughing train of a hot-rolling mill,” Vest. Yuzh.-Ural. Gos. Univ., Ser. Energet., 16, No. 34 (251), 35–41 (2011).
A. S. Karandaev, V. R. Khramshin, A. A. Radionov, et al., “Matching the motor speeds of the continuous roughing train of a rolling mill,” Vest. Ivanov. Gos. Energ. Univ., No. 1, 98–103 (2013).
V. P. Bychkov, Electric Drive and Automation of Metallurgical Production, Vyssh. Shkola, Moscow (1977).
V. V. Bur’kov and athe speeds of the continuous train of stands of a hot-rolling mill to provide minimum interstand tension,” subm. 03.22.2002, publ. 02.20.2003, Byull., No. 5, http://ru-patent.info/21/95-99/2198753.html.
V. V. Galkin, S. A. Petryakov, A. S. Karandaev, and V. R. Khramshin, “Automatic correction of the thickness of the strip head section in the Hydraulic AGCS of a wide-strip hot-rolling mill,” Izv. VUZ., Elektromekh., No. 4, 46–50 (2011).
A. S. Karandaev, V. R. Khramshin, I. Yu. Andryushin, et al., “Method for correction of gauge interference of the head-strip section in a system for automated controlling of the thickness of a broad-strip hot-rolling mill,” Russ. Electr. Eng., No. 84 (8), 441–445 (2013).
V. R. Khramshin, S. A. Evdokimov, A. S. Karandaev, et al., “Algorithm of no-pull control in the continuous mill train,” in: Proc. Int. Siberian Conf. on Control and Communications, SIBCON-2015, Omsk State Techn. Univ., Omsk (2015), doi https://doi.org/10.1109/SIBCON.2015.7147263.
A. S. Karandaev, V. R. Khramshin, I. Yu. Andryushin, et al., “Mathematical simulation of coupled electromechanical systems in the interstand section of a wide-strip hot-rolling mill,” Izv. VUZ., Elektromekh., No. 1, 12–20 (2009).
A. A. Radionov, A. S. Karandaev, A. S. Evdokimov, et al., “Mathematical simulation of coupled electromechanical systems of the continuous train of a rolling mill. Part 1: Development of a mathematical model,” Vest. Yuzh. Ural. Gos. Univ., Ser. Energet., 15, No. 1, 59–73 (2015).
A. A. Radionov, A. S. Karandaev, A. S. Evdokimov, et al., “Mathematical simulation of coupled electromechanical systems of the continuous train of a rolling mill. Part 2: Study of dynamic loads in universal stands,” Vest. Yuzh. Ural. Gos. Univ., Ser. Energet., 15, No. 2, 67–76 (2015).
A. A. Radionov, A. S. Karandaev, A. S. Evdokimov, et al., “Mathematical simulation of coupled electromechanical systems of the continuous train of a rolling mill. Part 3: Study of a method for matching the linear speeds of the vertical and horizontal rolls,” Vest. Yuzh. Ural. Gos. Univ., Ser. Energet., 16, No. 1, 47–55 (2016).
V. R. Khramshin, A. S. Karandaev, A. A. Radionov, et al., “Dynamic loads reduction of mechanical and electrical equipment of the hot rolling mill roughing train,” Mashinostr.: Set. Elektron. Nauch. Zh., No. 2, 69–77 (2013).
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Translated from Metallurg, No. 5, pp. 28–36, May, 2017.
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Andryushin, I.Y., Shubin, A.G., Gostev, A.N. et al. Automatic Tension Control in the Continuous Roughing Train of a Wide-Strip Hot-Rolling Mill. Metallurgist 61, 366–374 (2017). https://doi.org/10.1007/s11015-017-0502-0
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DOI: https://doi.org/10.1007/s11015-017-0502-0