Electrometallurgy Today, 2019, №04



2019 №04 (05)

DOI of Article 10.15407/sem2019.04.06

2019 №04 (07)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2019, #4, 38-43 pages

Journal                    SEM
Publisher                International Association «Welding»
ISSN                      2415-8445 (print)
Issue                       № 4, 2019 (November)
Pages                      38-43

Restoration of end part of copper gas-oxygen chambers of arc steel-melting furnaces

V.M. Ilyushenko¹, T.B. Maidanchuk¹, A.N. Bondarenko¹, E.P. Lukianchenko¹, T.E. Udartseva², D.I. Andreichuk³

¹E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
²National Avaition University. 1 Kosmonaut Komarov Prosp., 03058, Kyiv, Ukraine. E-mail: post@nau.edu.ua
³«MZ Dneprostal». 4 Dneprostalevskaya Str., 49051, Dnepr, Ukraine. E-mail: dmitriy.andreychuk@ips.interpipe.biz

The copper gas-oxygen chambers, applied for intensification of the process of metal melting in electric furnaces often fail, because of highly complex operating conditions. A set of investigations of the degraded metal of copper chambers was performed, which allowed determination of the possible causes for copper cracking in the end portion of the part. Basic technology of restoration of worn copper parts by helium-arc surfacing using special metal-cored filler wire was selected. The restored parts have passed laboratory and plants testing. This repair technology ensures extension of the operating life of chambers of arc steel-melting furnace by 75…85 %. Ref. 8, Tabl. 3, 6 Fig.
Key words: arc steel-melting furnace; copper gas-oxygen chambers; defects; restoration; arc surfacing; welding consumables
 
Received:                30.07.19
Published:               23.09.19
 

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