Nosov Magnitogorsk State Technical University (Magnitogorsk, Russia):

A. B. Moller, Dr. Eng., Prof., Head of the Dept. of Materials Processing Technologies, e-mail: amoller@mail.ru
O. N. Tulupov, Dr. Eng., Prof., Dept. of Materials Processing Technologies, Vice-Rector for Research and Innovation
S. A. Levandovskiy, Cand. Eng., Associate Prof., Dept. of Materials Processing Technologies, e-mail: levandovskiy@mail.ru
D. A. Nazarov, Postgraduate Student, Dept. of Materials Processing Technologies

In 2019, the air-cooling line of Mill 170 of PJSC MMK (Magnitogorsk Iron and Steel Works) was upgraded. The main task of modernization was to obtain wire rod sorbitized in the initial state. The use of such products makes it possible to abandon one intermediate heat treatment operation in the wire production process, and should also ensure the stability of the mechanical properties of the finished wire of the entire size range of OJSC MMK-METIZ. On the part of OJSC MMK-METIZ, the following high requirements were imposed on the uniformity of the mechanical properties of the wire rod obtained at the mill - no more than 40 N/mm² along the length of the convolution, 50 N/mm² along the length of the coil, 60 N/mm² within the melt. When analyzing samples of rolled products from steel grades 70-75 with a diameter of 5.5-6.5 mm, it was found that compliance with the requirements in the modes operating at the mill is difficult. By the order of PJSC MMK, as part of scientific research on the development of wire rod production technology using a digital twin of an air cooling line, a mathematical model was developed, the adequacy of which was proved by developing rolling modes based on it, followed by evaluation of the resulting product. Upon further analysis of the obtained rolled products, it was found that the products manufactured according to the new modes meet the requirements for uneven mechanical properties along the length of the convolution and the coil to a greater extent.

1. Sychkov A. B., Parusov E. V., Zavalishin A. N., Kozlov A. V. Inherent effect of the crystal structure of continuous cast steel billets on the formation of structure of high carbon wire rod in coils. Journal of Chemical Technology and Metallurgy. 2018. Vol. 53. No. 5. pp. 977-985.
2. Wollschlaeger M, Sauter T., Jasperneite J. The Future of Industrial Communication: Automation Networks in the Era of the Internet of Things and Industry 4.0. Institute of Electrical and Electronics Engineers Industrial Electronics Magazine. 2017. No. 11. pp. 17–27.
3. Lu Y., Xu X. Resource virtualization: A core technology for developing cyber-physical production systems. Journal of Manufacturing Systems. 2018. Vol. 47. pp. 128–140.
4. Levchenko G. V., Borisenko A. Yu., Mospan V. V. et al. Production of wire rod for various purposes from sectional and bloom continuously cast billets. Stal. 2018. No. 8. pp. 48-53.
5. Nefedov D. V., Telegin V. E., Miyanov A. G. et al. Aspects of quality and technology for the production of patented high-strength packaging tape. Stal. 2019. No. 6. pp. 30-33.
6. Gorbanev A. A., Filippov V. V., Zhuchkov S. M. et al. Increasing the uniformity of cooling of coils of wire rod on a roller conveyor of a modern wire mill. Metallurgicheskaya i gornorudnaya promyshlennost. 2002. No. 3. pp. 44-47.
7. Evteev E. A., Klekovkin A. A., Podol'skii B. G. Reconstruction of section for air cooling of wire rod in the 150 mill. Steel in Translation. 2010. Vol. 3 (40). pp. 273-276.
8. Sarancha S. Yu., Levandovsky S. A., Moller A. B., Kinzin D. I., Podolsky B. G. Improving the efficiency of section rolling production: modeling the process of cooling wire rod. Modelirovanie i razvitie protsessov OMD. 2016. No. 22. pp. 50-56.
9. Talapov V. V. BIM technology. The essence and features of the implementation of building information modeling. DMK Press, 2015. 410 p.
10. Dantzig J. A., Pappaz M. Solidification. Lausanne : Efpl. Press, 2009. 621 p.
11. Moller A. B., Shcherbak A. V., Levandovsky S. A., Sarancha S. Yu. Modeling of the process of air cooling of rolled stock on smallsection wire mills. Certificate of registration of the computer program 2021681688, 12/24/2021. Application No. 2021680953 dated 12/20/2021.
12. Tulupov O. N., Moller A. B., Kinzin D. I., Levandovskiy S. A., Ruchinskaya N. A., Nalivaiko A. V., Rychkov S. S., Ishmetyev E. N. Structural-matrix models for long product rolling processes: modeling production traceability and forming consumer properties of products. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta. 2013. Vol. 5 (45). pp. 46-50.
13. Parusov E. V., Parusov V. V., Sychkov A. B. Theoretical and technological foundations for the production of highly efficient types of wire rod. Dnepropetrovsk : Art-Press. 2012. 376 p.
14. Rumyantsev M. I., Tulupov O. N. Further developments in simulation of metal forming processes. CIS Iron and Steel Review. 2018. Vol. 16. pp. 21-24.
15. GOST 1497-84. Metals tensile test methods. Date of introduction: 01.01.1986.