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2021 №01 (03) DOI of Article
10.37434/sem2021.01.04
2021 №01 (05)

Electrometallurgy Today 2021 #01
SEM, 2021, #1, 35-38 pages

Plasma-arc remelting of ShKh15 bearing steel

Authors
V.O. Shapovalov, V.R. Burnashev, T.I. Grishchenko, Yu.O. Nikitenko, V.V. Yakusha
E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., Kyiv, 03150, Ukraine. E-mail: office@paton.kiev.ua

Abstract
It is shown that owing to inert atmosphere (argon) in the furnace chamber, plasma-arc remelting of ShKh15 steel promotes considerable cleaning from nonmetallic inclusions and gas impurities that points to a high refining ability of plasma-arc processing of metal. Ref. 8, Tabl. 3, Fig. 5.
Keywords: ShKh15 bearing steel; plasma-arc remelting; remelting modes; nonmetallic inclusions; argon; mould; ingot

Received 05.02.2021

References

1. Petrov, A.K., Shults, Yu.A. (1973) Problems of quality improvement of bearing steels and increase in service life of rolling bearings. In: Tool and bearing steels. Issue 1. Moscow, Metallurgiya [in Russian].
2. Gromov, V.I., Voznesenskaya, N.M., Leonov, A.V. (2019) New bearing steel VKS241 and steels with super-equilibrium content of nitrogen. In: Proc. of All-Union Sci.-Tekh. Conf. on High-Strength Steels for Aerospace Engineering and Technologies of their Manufacture (06.09.2019, Moscow). Moscow, VIAM, 39–45 [in Russian].
3. Ma F., Song M. (2012) Опыт производства подшипниковой стали ШХ15 повышенной чистоты. Металлург, 5, 54–56.
4. Lakomsky, V.I. (1974) Plasma-arc remelting. Ed. by B.E. Paton. Kyiv, Tekhnika [in Russian].
5. Paton, B.E., Grygorenko, G.M., Shejko, I.V. et al. (2013) Plasma technologies and equipment in metallurgy and foundry. Kyiv, Naukova Dumka [in Ukrainian].
6. Slyshankova, V.A., Lakomsky, V.I., Dzykovich, I.Ya. (1977) Crystallization and properties of steel ShKh15 produced by PAR method. Problemy Spets. Elektrometallurgii, 6, 75–81 [in Russian].
7. Zhdanovsky, A.A., Lakomsky, V.I. (1975) Regularities of evaporation and change of chemical composition of slags in plasma-slag remelting. In: Refining remeltings. Issue 5, Kiev, Naukova Dumka, 183–191 [in Russian].
8. Zhdanovsky, A.A., Lakomsky, V.I. (1974) Behavior of nonmetallic inclusions in plasma-slag remelting. Ibid., Kiev, Naukova Dumka, 231–239 [in Russian].

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