DEVELOPMENT OF THE STUDY OF MECHANISM OF “HEALING” DEFECTS OF CONTINUOUS CAST BILLET AXIAL ZONE ON A PHYSICAL MODEL
https://doi.org/10.17073/0368-0797-2016-5-322-327
Abstract
The concept of metal construction minimization of finished products requires an increasing set of requirements for steels as structural materials. In this context, issues related to the study of the continuous casting defects macrostructure behavior (shrinkage, gas holes, axial porosity) during deformation are very actual. This work presents further development of metal forming processes research methods with layered physical models use. Layered models usage in conjunction with the proposed method of defects application on the surface of n-th layer and processing information method concerning the nature of its forming allows to evaluate the rate deformation influence during the process of “healing”. The initial adaptation of the proposed method applying to the conditions of the deformation process simulation of continuous casting in the first three rectangular breakdown stand calibers of linear mill 500/370 of PJSC “DMPZ” has been performed. Obtained experimental data allow to clarify the existing mechanism of “healing” of axial discontinuities defects in metal depending on the overall elongation and schemes of deformation application.
About the Authors
E. N. Smirnov
Stary Oskol Technological Institute of National University of Science and Technology “MISiS”, Stary Oskol, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Metallurgy and Metal Science”
V. A. Sklyar
Stary Oskol Technological Institute of National University of Science and Technology “MISiS”, Stary Oskol, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metal- lurgy and Metal Science”
V. A. Belevitin
Chelyabinsk State Pedagogical University, Chelyabinsk, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Head of the Laboratory “Technology of solution and protection of authoring”
R. A. Shmyglya
National Technical University of Donetsk, Donetsk
Russian Federation
Russian Federation
MA Student
O. E. Smirnov
CJSC “OskolTelecom”, Stary Oskol, Russia
Russian Federation
Russian Federation
Engineer
References
1. Parusov V.V., Belitchenko A.K., Bogdanov N.A. etc. Termomekhanicheskaya obrabotka prokata iz nepreryvnolitoi zagotovki malogo secheniya [Thermomechanical rolling process of continuous casting billet of small section]. Zaporizhia: ZGU, 2000, 142 p. (In Russ.).
2. Park J.J. Prediction of void closure in a slab during various deformation processes. Journal of Mechanical and Technology. 2011, no. 25 (11). pp. 2871–2876.
3. Yur’ev A.B., Godik L.A., Nugumanov R.F. etc. Transformation of defects in continuous-cast billet during rail production. Steel in Translation. 2009, vol. 39, Issue 2, pp. 125–126.
4. Sychkov A.B., Zhigarev M.A., Perchatnik A.V. etc. The transformation of defects in continuous-cast semifinished products into surface defects on rolled products. Metallurgist. 2006, vol. 50, Issue 1, pp. 83–90.
5. Koksharev Yu.M., Lubyanoi O.A. Research of brewing of internal defects in the billets produced on the CCM of JSC “ZSMK”. In: Metallurgiya: tekhnologii, upravlenie, innovatsii, kachestvo: Trudy Vserossiiskoi nauchno-prakticheskoi konferentsii [Metallurgy: technology, management, innovation, quality: Proceedings of the AllRussian Scientific-Practical Conf.]. Novokuznetsk, SibGFU, 2010, pp. 73–77. (In Russ.).
6. Rolling of rails from continuous casting billet: inf. head. Byull. Chernaya metallurgiya. OAO “Chermetinformatsiya”. 2003, no. 10, 38 p. (In Russ.).
7. Mіnaev O.A., Smirnov Є.M., Mіt’єv A.P., Grigor’єv M.V., Demіdova І.A., Slugіn O.O., Myagkov V.M. Sposіb fіzichnogo modelyuvannya protsesіv proroblennya strukturi v bezperervnolitikh zlivkakh pri plastichnіi deformatsії [Method of physical modeling of the behavior of the prior structure in continuously cast ingots at plastic deformation]. Patent no. 77283 UA. Byul. 2006, no. 11. (In Ukr.).
8. Tirosh J., Shrizby A., Rubinski I. Evolution of anisotropy in the compliances of porous materials during plastic stretching or rolling – analysis and experiments. Mechanics of Materials. July 1999, vol. 31, Issue 7, pp. 449–460.
9. Tripathy P.K., Das S., Jha M.K. etc. Migration of slab defects during hot rolling. Iron making and Steelmaking. 2006, vol. 33, no. 6, pp. 447–483.
10. Zav’yalov A.A., Logvinov A.V., Tulupov O.N. Laboratory modeling methods of segregation during deformation of continuous cast billet. In.: Obrabotka sploshnykh i sloistykh materialov: Mezhvuzovskii sbornik nauchnykh trudov [Treatment of solid and laminates materials: Int. collection of sci. works]. Magnitogorsk: MGTU, 2001, pp. 66–71. (In Russ.).
11. Loginov Yu.N., Eremeeva K.V. Behavior of defect of pore type, adjoining to strip surface, during rolling. Proizvodstvo prokata. 2008, no. 10, pp. 2–6. (In Russ.).
12. Loginov Yu.N., Eremeeva K.V. Changes in shape of single pore situated in a round billet during the drawing process. Kuznechnoshtampovochnoe proizvodstvo. 2009, no. 4, pp. 3–8. (In Russ.).
13. Loginov Yu.N., Eremeeva K.V. Rolling of billet with single pore located in volume. Zagotovitel’noe proizvodstvo v mashinostroenii. 2009, no. 11, pp. 33–37. (In Russ.).
14. Loginov Yu.N., Eremeeva K.V. Deformation of pores in the central part of the rod at initial pressing stage. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2009, no. 9, pp. 46–51. (In Russ).
15. Tarnovskii I.Ya., Pozdeev A.A., Lyashkov V.B. Deformatsiya metalla pri prokatke [Metal deformation during rolling]. Sverdlovsk: Metallurgizdat, 1956, 287 p. (In Russ.).
16. Anikeev V.V. Structural heredity of carbon steel in the “ingot rolled” system at different manufacturing plants. In: Genezis, teoriya i tekhnologiya litykh materialov: Materialy mezhdunarodnoi nauchno–tekhnicheskoi konferentsii [Genesis, theory and technology of cast materials: Materials of Int. Sci.-Tech. Conf.]. Vladimir, 2002, pp. 221–222. (In Russ.).
17. Smirnov E.N., Leirikh I.V., Zub V.V. Investigation of structure formation dynamics and properties of high-quality welding wire of continuously cast 07G1NMA steel. Metall i lit’e Ukrainy. 2006, no. 3–4, pp. 43–47. (In Russ.).
18. Shubin I.G., Tulupov S.A. Improving the calibration of rolls for manufacturing mill which helps to reduce the size of surface defects. MGMI, Magnitogorsk. 1990. 10 p. (In Russ.).
Review
For citations:
Smirnov E.N., Sklyar V.A., Belevitin V.A., Shmyglya R.A., Smirnov O.E. DEVELOPMENT OF THE STUDY OF MECHANISM OF “HEALING” DEFECTS OF CONTINUOUS CAST BILLET AXIAL ZONE ON A PHYSICAL MODEL. Izvestiya. Ferrous Metallurgy. 2016;59(5):322-327. (In Russ.) https://doi.org/10.17073/0368-0797-2016-5-322-327
Views:
641
Email this article 