Electrometallurgy Today, 2020, №03



2020 №03 (08)

DOI of Article 10.37434/sem2020.03.01

2020 №03 (02)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2020, #3, 11-17 pages

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

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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