Electrometallurgy Today, 2025, №02

2025 №02 (03)

DOI of Article 10.37434/sem2025.02.04

2025 №02 (05)

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"Suchasna Elektrometallurgiya" (Electrometallurgy Today), 2025, #2, 26-29 pages

Electrical processes in a current-carrying crystallizer with a square cross-section

Yu.M. Kuskov, I.P. Lentiugov, A.V. Netyaga

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: netyaga_av@ukr.net

Abstract
Experimental electroslag surfacing was carried out in current-carrying crystallizers of square cross-sectional dimensions of 200×200 and 250×250 mm with or without a protective graphite lining on the working surface of the current- carrying section of the crystallizer. It has been established that surfacing in a small cross-section crystallizer can be carried out without the use of a lining in the case of a current with a density of less than 0.01 A/cm2 passing through the section. This results in a high resistance of the section metal to electrical erosion wear. Surfacing in a large cross-section crystallizer with a partially protected working surface is accompanied by the manifestation of electrical erosion processes only on the graphite lining, mostly in its end part, which confirms the passage of the maximum operating current in this zone. 3 Ref., 3 Fig.
Keywords: electroslag surfacing, current-carrying crystalliser of square cross-section, current-carrying section, graphite lining, electroerosion

Received: 17.03.2025
Received in revised form: 30.04.2025
Accepted: 29.05.2025

References

1. Kuskov, Yu.M., Proskudin, V.M., Zhdanov, V.A., Okopnyk, L.L. (2022) Current-supplying mould in electroslag technologies. The Paton Welding J., 7, 35–38. DOI: https://doi.org/10.37434/tpwj2022.07.06
2. Kuskov, Yu.M., Proskudin, V.M., Netyaga, A.V. (2024) Increasing the resource of current-supplying mould at electroslag melting of cast iron. Avtomatychne Zvaryuvannya, 5, 60–62 [in Ukrainian]. DOI: https://doi.org/10.37434/as2024.05.08
3. Artamonov, V.L., Medovar, B.I., Martyn, V.M., Giser, E.M. (1972) To the question of anodic destruction in slag during ESR of current-supporting metallic elements. Spetsialnaya Elektrometallurgiya, 17, 3–10 [in Russian].
4. Artamonov, V.L., Kamensky, Y.M., Tolstev, V.I. et al. (1981) Electrical erosion of molds at ESR and their restoration by cladding. Problemy Spets. Elektrometallurgii, 45, 52‒55 [in Russian].
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6. Ageev, P.A., Kalmykov, V.A., Sveshnikov, Y.V. (1970) Dielectric permeability and specific resistance of fluxes for ESR. Problemy Spets. Elektrometallurgii, 7, 26‒29 [in Russian].
7. Palti, A.M., Yurchenko, D.D. (2006) Computer modeling of electroslag surfacing in a water-cooled mold. Svarochnoe Proizvodstvo, 9, 12‒15 [in Russian].

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