Preview

Izvestiya. Ferrous Metallurgy

Advanced search

Simulation of a new method for supplying and stirring liquid metal in a CCM mold

https://doi.org/10.17073/0368-0797-2021-3-237-243

Abstract

A significant influence on stability of the process of filling the CCM mold with liquid metal is exerted by the structural and technological schemes and designs of used devices, modes and parameters of filling the mold with the melt. All this is due to the features of the devices used and the improvement of their design. The high requirements for such devices have determined the need to create new devices designs to reduce the time spent on preparation for work and maintenance and to improve the quality of resulting metal billets. In scientific literature, including patents, more and more articles and materials are devoted to the development of new and improvement of the existing methods of supplying and stirring liquid metal in CCM and devices for their implementation. Experimental studies of liquid metal flow in CCM are a long, complex and laborious process. Therefore, mathematical modeling by numerical methods is increasingly used for this purpose. The authors have proposed a new technology for pouring liquid metal into a mold and a device for its implementation due to the use of effect of a deep-bottom submersible nozzle rotating in the mold with eccentric outlet holes. The purpose of this work is to simulate by proven numerical method a new process of filling a rectangular CCM mold with liquid steel and stirring it. Based on the developed numerical schemes and algorithms, a calculation program was compiled. The article describes an example of calculating the steel casting into a mold of rectangular cross-section and flow diagrams of liquid metal in it.

About the Authors

V. I. Odinokov
Komsomolsk-on-Amur State University
Russian Federation

Valerii I. Odinokov, Dr. Sci. (Eng.), Prof. – Consultant, Chief Researcher of the Department of Research Activities

27 Lenina ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013



E. A. Dmitriev
Komsomolsk-on-Amur State University
Russian Federation

Eduard A. Dmitriev, Dr. Sci. (Eng.), Assist. Prof., Rector

27 Lenina ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013



A. I. Evstigneev
Komsomolsk-on-Amur State University
Russian Federation

Aleksei I. Evstigneev, Dr. Sci. (Eng.), Dr. Sci. (Eng.), Prof.-Consultant,
Chief Researcher of the Department of Research Activities

27 Lenina ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013



S. Yu. Aleksandrov
Komsomolsk-on-Amur State University
Russian Federation

Sergei Yu. Aleksandrov, Senior Lecturer

27 Lenina ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013



References

1. Dyudkin D.A., Kisilenko V.V., Smirnov A.P. Steel Production. Vol. 4: Continuous Casting of Metal. Moscow: Teplotekhnik, 528 p. (In Russ.).

2. Efimov V.A. Casting and Crystallization of Steel. Moscow: Metallurgiya, 1976, 552 p. (In Russ.).

3. Akimenko A.D., Girskii V.E., Gus’kov A.I. Influence of methods of metal supplying into a mold on axial zone formation in a square ingot. Stal’. 1973, no. 5, pp. 408–409. (In Russ.).

4. Odinokov V.I., Dmitriev E.A., Evstigneev A.I. Numerical modeling of the process of filling the CCM mold with metal. Izvestiya. Ferrous Metallurgy. 2017, vol. 60, no. 6, pp. 493-498. (In Russ.). https://doi.org/10.17073/0368-0797-2017-6-493-499

5. Intern. Symposium on Electromagnetic Processing of Materials. October 25-28, 1994. Nagoya, Japan: ISIJ, 1994, 580 p.

6. Stulov V.V., Matysik V.A., Novikov T.V., Shcherbakov S.V., Chistyakov I.V., Plotnikov A.P. Development of a new method for casting slab billets in CCM. Vladivostok: Dal’nauka, 2008, 156 p. (In Russ.).

7. Odinokov V.I., Dmitriev E.A., Evstigneev A.I. Mathematical modeling of metal flow in crystallizer at its supply from submersible nozzle with eccentric holes. Izvestiya. Ferrous Metallurgy. 2018, vol. 61, no. 8, pp. 606–612. (In Russ.). https://doi.org/10.17073/0368-07972018-8-606-612

8. Kuberskii S.V., Semiryagin S.O., Fedorov O.V. Calculations of CCM Technological and Design Parameters: Textbook. Alchevsk: DONSTU, 2006, 146 p. (In Russ.).

9. Smirnov A.A., Niskovskikh V.M., Kulikov V.I. Investigation of electromagnetic metal mixing in slab CCM by modeling method. In: Improvement of Design, Research and Calculation of Continuous Casting Machines: Proceedings. Moscow: VNIIMETMASh, 1987, pp. 85–90. (In Russ.).

10. Odinokov V.I., Evstigneev A.I., Dmitriev E.A. Numerical modeling of metal filling in CCM mold completed with deflector. Izvestiya. Ferrous Metallurgy. 2019, vol. 62, no. 10, pp. 747–755. (In Russ.). https://doi.org/10.17073/0368-0797-2019-10-747-755

11. Ho K., Pehlke R. Modeling of steel solidification using the general finite difference method. 5th Int. Iron and Steel. Congr. Proc. 6th Process Technol. Conf. (Apr. 6 – 9, 1986). Warrendale. 1986, vol. 6, pp. 853–866.

12. Kohn A., Morillon Y. Etndemathematique de la solidification des lingotsenacier mi-dur. Revue de Metallurgie. 1966, vol. 63, no. 10, pp. 779–790. (In Fr.).

13. Mizikar E. Mathematical heat transfer model for solidification of continuous cast steel slabs. Transactions of the Metallurgical Society of AIME. 1967, vol. 239, no. 11, pp. 1747.

14. Szekely J., Stanek V. On heat transfer and liquid mixing in the continuous casting of steel. Metallurgical Transactions. 1970, vol. 1, no. 1, pp. 119.

15. Ozava M., Okano S., Matsuno J. Influence des contitions du jet de coulee sur la formation de la peau solidifiee eulingotiere de brames de colee continue. Tetsu-to-Hagane. 1976, vol. 62, no. 4, pp. 86. (In Fr.).

16. Larreq M., Sagues C., Wanin M. Vodele mathematique de la solidification eu coulee continue tenant compte de la solidificationeu al`interfacesolide-liquide. Revue de Metallurgie. 1978, vol. 75, no. 6, pp. 337–352. (In Fr.).

17. Yuan Q., Shi T., Vanka S.P., Thomas B.G. Simulation of turbulent flow and particle transport in the continuous casting of steel. Computational Modeling of Materials Minerals and Metals. Warrendale, PA, 2002, pp. 491–500.

18. Thomas B.G., Zhang L. Mathematical modeling of fluid flow in continuous casting. ISIJ International. 2001, vol. 41, no. 10, pp. 1181–1193. http://doi.org/10.2355/isijinternational.41.1181

19. Thomas B.G., Mika L.J., Najjar F.M. Simulation of fluid flow inside a continuous slab casting machine. Metallurgical Transactions B. 1990, vol. 21, no. 2, pp. 387–400. http://doi.org/10.1007/BF02664206

20. Nartst Kh.-P., Kellerer S., Shtakhel’berger K., Merval’d K., Federshpil’ K., Val’ G. Innovative solutions and practical results of continuous slab casting technology. Chernye metally. 2003, no. 11, pp. 34–38. (In Russ.).

21. Vimmer F., Tene X., Pekshtainer L. High-speed casting of small-cell billets on continuous casting machine with “Diamould” mold. Stal’, 1999, no. 6, pp. 22–26. (In Russ.).

22. Davidson P.A., Boysan F. The importance of secondary flow in the rotary electromagnetic stirring of steel during continuous casting. Applied Scientific Research. 1987, vol. 44, no. 1-2, pp. 241–259. http://doi.org/10.1007/BF00412016

23. Oler K., Odental’ Kh.-Yu., Pfaifer G., Lemanovich I. Digital modeling of the processes of metal flow and solidification in continuous casting machine for casting thin slabs. Chernye metally. 2002, no. 8, pp. 22–30. (In Russ.).

24. Aikhinger A., Frauenkhuber K., Khedl’ X., Merval’d K. State-ofthe-art equipment for high-performance continuous casting. Stal’. 2000, no. 3, pp. 25-28.

25. Odinokov V.I., Kaplunov B.G., Peskov A.V., Bakov A.V. Mathematical Modeling of Complex Technological Processes. Moscow: Nauka, 2008, 176 p. (In Russ.).

26. Odinokov V.I., Gornakov A.I. Mathematical modeling of melt hydrodynamics in a continuous casting machine. Certificate of state registration of computer programs no. 201261228. Publ. 22.05.2012. (In Russ.).

27. Kim W.S., Chair T.S. A simplified phenomenological theory of viscosity for liquid metals. Bulletin of the Korean Chemical Society. 2001, vol. 22, no. 1, pp. 43–45.

28. Odinokov V.I., Dmitriev E.A., Evstigneev A.I., etc. A device for supplying and mixing steel in CCM mold. Patent RF 2741611. Byulleten’ izobretenii. 2021, no. 3. (In Russ.).


Review

For citations:


Odinokov V.I., Dmitriev E.A., Evstigneev A.I., Aleksandrov S.Yu. Simulation of a new method for supplying and stirring liquid metal in a CCM mold. Izvestiya. Ferrous Metallurgy. 2021;64(3):237-243. (In Russ.) https://doi.org/10.17073/0368-0797-2021-3-237-243

Views: 665


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 0368-0797 (Print)
ISSN 2410-2091 (Online)