DOI: 10.52150/2522-9117-2023-37-316-323

Verenov Valentyn Volodymyrovych, D. Sc. (Tech.), Senior Researcher, Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova Square, 1, Dnipro, 49107, Ukraine. ORCID: 0000-0002-2561-5365. E-mail: office.isi@nas.gov.ua

PROSPECTS FOR THE DEVELOPMENT OF DIAGNOSTIC METHODS
IN TRANSIENT OPERATING CONDITIONS OF ROLLING MILLS

Abstract. The issue of using the parameters of vibrodynamic processes in rolling mills, primarily during the gripping of the strip by rolls, to determine the technical condition of the equipment is considered. Examples of typical transient processes of the moment of elastic forces on the spindles and the motor shaft and vibration of the equipment along the drive line are noted. Examples of developed methods of diagnosing the actual technical condition of rolling cage equipment are provided. In particular, with the use of such a new indicator as the time delay of the reaction of the areas to the impact load in the cage. On the basis of the obtained industrial measurements and mathematical modeling, the directions for the search and development of new methods and methods are proposed and substantiated. It is recommended to use the correlation fields constant moment – the maximum moment of elastic forces during strip capture, coefficients of variation, purposeful creation of special modes of rolling and operation of equipment and installation of continuously operating strain gauges and use of regular sensors.

Key words: rolling mill, equipment, diagnostics, transitional process, gap, impact load, strip gripping, lag, correlation field.

DOI: https://doi.org/10.52150/2522-9117-2023-37-316-323

For citation: Verenev, V. V. (2023). Prospects for the development of diagnostic methods in transient operating conditions of rolling mills. Fundamental and applied problems of ferrous metallurgy, 37, 316-323. https://doi.org/10.52150/2522-9117-2023-37-316-323

References

1. Verenev, V. V., Bolshakov, V. I., & Putnoki, A. Yu. et al. (2007). Diagnostics and dynamics of rolling mills. IMA-PRES
2. Verenev, V. V. (2014). Reduction of dynamic loads and diagnostics of wide-band mills in transient modes. SPD Heldman O.O.
3. Verenev, V. V., Putnoki, A. Yu., & Podobedov, N. I. (2017). Transient processes during continuous rolling. Litograf
4. Verenev, V. V. (2018). Dynamic processes in wide-band hot rolling mills. Lithographer.
5. Verenev, V. V., & Podobedov, N. I. (2021). Statistical modeling of dynamic loads in broadband mills. LIRA
6. Verenеv, V. V., Yunakov, O. M., Dalichuk, A. P. et al. (2004). Application Patent of Ukraine No. 70137А. The method of determining the technical condition of the equipment of the torsion system of the main drive line of the rolling cage. Bul., 19
7. Verenеv, V. V., Podobedov, M. I., Putnoki, O. Yu. et al. (2009). Patent No. 87827 Ukraine. The method of determining the change in the technical state of articulation of the working rolls – the spindle of the main drive line of the rolling mill. Bul., 16
8. Verenеv, V.V., Dalichuk, A.P., Korennoi, V.V. et al. (2029). Patent No. 86640 Ukraine. The method of determining the technical condition of the gearing of the reducer of the rolling mill drive line. Bul., 9
9. Verenеv, V. V., Korennoi, V. V., Matsko, S. V. et al. (2009). Patent No. 87575 Ukraine. The method of determining the technical condition of sections of the main drive line of the first cage during continuous rolling of the workpiece in two adjacent cages. Bul., 14
10. Verenеv, V. V., Baglai, A. V., & Podobedov, M. I. (2021). Patent No. 124756 Ukraine. The method of diagnosis of the main drive line of cage rolls with multi-filament rolling. Bul., 45