SEM, 2019, #4, 38-43 pages
Publisher International Association «Welding»
ISSN 2415-8445 (print)
Issue № 4, 2019 (November)
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
E.O. Paton Electric Welding Institute of the NAS of Ukraine.
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: email@example.com
National Avaition University. 1 Kosmonaut Komarov Prosp., 03058, Kyiv, Ukraine. E-mail: firstname.lastname@example.org
«MZ Dneprostal». 4 Dneprostalevskaya Str., 49051, Dnepr, Ukraine. E-mail: email@example.com
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
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