Eng
Ukr
Rus
Print

2024 №04 (02) DOI of Article
10.37434/sem2024.04.03
2024 №04 (04)

Electrometallurgy Today 2024 #04
Electrometallurgy Today (Suchasna Elektrometallurgiya), 2024, #4, 18-23 pages

Increase of cost effectiveness of producing an ESR ingot of 800 mm diameter and six ton weight due to application of a cast electrode with larger variable cross-section

S.G. Kiyko, I.M. Logozyn’sky, S.V. Davydchenko, O.G. Fedkov, M.S. Mosievych, Yu.V. Rohovska

PJSC «Electrometallurgical Plant «Dniprospetsstal». 81 Pivdenne Highway, 69008, Zaporizhzhzya, Ukraine. E-mail: info@dss.com.ua

Abstract
Design and manufacturing of a casting mold for casting electrodes of a larger variable cross-section for melting an ESR ingot of 800 mm dia. and six ton weight were performed. The technological scheme for manufacturing a cast consumable electrode of a variable cross-section and technology of its ESR into an 800 mm dia. crucible with an increased crucible filling factor were optimized. Results on power consumption at ESR of a cast electrode and lowering of the ESR ingot cost by 10…15 % are given. Technology of casting larger diameter electrodes for production of ESR ingots of 800 mm cross-section and six ton weight of ledeburite type of Kh12MF-Ш and other steel grades, namely 40Kh13-Ш, and 15Kh12N2MVFAB-Sh (EP517-Ш), was developed. An optimal geometrical shape of the electrode and electroslag remelting mode with an increased crucible filling factor were determined, which ensure the quality of ESR ingot surface for deformation processing. 8 Ref., 4 Tabl., 12 Fig.
Keywords: cost, electroslag remelting, electrode, ESR ingot, mold, crucible, forging

Received: 28.10.2024
Received in revised form:19.12.2024
Accepted: 23.12.2024

References

1. Medovar, B.I., Tsykulenko, A.K., Dyachenko, D.M. (1990) Quality of electroslag metal. Ed. by B.E. Paton, B.I. Medovar. Kyiv, Naukova Dumka [in Russian].
2. Medovar, B.I. (2006) Selected transactions of the NANU, PWI. Kyiv, Naukova Dumka [in Ukrainian].
3. In: Proc. of 5th Inter. Symp. on Tekhnology of Electroslag Remelting, Pittsburg, USA, Issue 4: Electroslag remelting. Ed. by B.I. Medovar.
4. Svenchansky, A.D., Zherdev, I.T., Kruchinin, A.M. et al. (1981) Electric industrial furnaces. Arc furnaces and installations of special heating: Manual for higher education institutions. Ed. by A.D. Svenchansky. 2nd Ed. Moscow, Energoizdat [in Russian].
5. Shulte, Yu.A., Tsivirko, E.I., Ulitenko, A.N. et al. (1990) Quality of surface of metal products from structural steel. Kyiv, Tekhnika [in Russian].
6. Sorokin, V.G., Volosnikova, A.V., Vyatkin, S.A. et al. (1979) Database of steels and alloys. Ed. by V.G. Sorokin. Moscow, Mashinostroenie [in Russian].
7. Rauzin, Ya.R. (1963) Heat treatment of the chromium steel. Moscow, State Sci.-Tekhn. Publishing House of Mechanical Engineering Literature [in Russian].
8. Volkov, S.E., Volkov, A.E., Zabaluev, Yu.I., Buryakobsky, G.A. (1979) Nonmetallic inclusions and defects in electroslag ingot [in Russian]. Moscow, Metallurgiya.

Advertising in this issue: