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2020 №03 (08) DOI of Article
10.37434/sem2020.03.01
2020 №03 (02)

Electrometallurgy Today 2020 #03
SEM, 2020, #3, 11-17 pages

Investigation of manufacturability and effectiveness of the new slag for electrosdlag remelting

Authors
G.P. Stovpchenko2, S.V. Davidchenko3, L.O. Lisova1, Ya.V. Gusev1, L.B. Medovar1
1E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
2Engineering Company «ELMET-ROLL». P.o. 259, 03150, Kyiv. E-mail: office@elmet-roll.com.ua
3PJSC A.M.Kuzmin «Electrometallurgical Plant «Dniprospetsstal». 81 Pivdenne Highway, 69008, Zaporizhzhya. E-mail: info@dss.com.ua

Abstract
Pilot trials testified that by the main characteristics of chemical composition, micro- and macrostructure, and mechanical properties of the manufactured bars, the metal of ingots from 15Х11МФ (15Cr11MoV) steel, melted under the developed slag ANF-39 (32CaF2/31Al2O3/30CaO/4MgO/3SiO2), is highly competitive with the products, remelted using slag ANF-6 (70CaF2/30Al2O3), which is applied in batch production by the current technology. Compared to slag ANF-39, application of slag ANF-6 allowed reducing oxide inclusion content by 0.5 points and power consumption at electroslag remelting by 17 %; the slag is more eco-friendly due to lowering calcium fluoride content more than 2 times; the cost of materials for slag production was reduced by 23…25 %. Slag ANF-39 is recommended for replacement of ANF-6 for ESR of alloyed and high-alloyed steels in stationary and short-collar molds. Ref. 8, Tabl. 5, Fig. 4.
Keywords: new slag; electroslag remelting; energy effectiveness; high-alloyed steel; macro- ad microstructure; nonmetallic inclusions

Received 03.08.2020

References

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8. Lisova, L.O., Stovpchenko, G.P., Goncharov, I.O. et al. (2020) Thermodynamics of interaction and physical properties of 30CaF2/30CaO/30Al2O3 system slags with addition of SiO2 and MgO in different ratios in electroslag remelting. Suchasna elektrometalurgiya, 1, 8-13 [in Ukrainian]. https://doi.org/10.37434/sem2020.01.01

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