Abstract:
An efficient low-temperature plasma generator with direct arc for plasma remelting was developed and studied with direct and reverse polarity. It has an expanding nozzle channel and the remelted metal acts as a second electrode. An efficiency of ≈90% and a long service life with a current strength of up to 200 A were obtained. It is shown that the nozzle increases arc stability at an opening angle of 12∘. It is established that a super-equilibrium nitrogen content (up to 0.22%) in the molten metal can be obtained.
Citation:
M. Kh. Gadzhiev, M. V. Il'ichev, A. S. Tyuftyaev, M. A. Sargsyan, “Low-temperature plasma generator with direct arc for plasma remelting”, TVT, 58:4 (2020), 584–589; High Temperature, 58:4 (2020), 539–544
\Bibitem{GadIliTyu20}
\by M.~Kh.~Gadzhiev, M.~V.~Il'ichev, A.~S.~Tyuftyaev, M.~A.~Sargsyan
\paper Low-temperature plasma generator with direct arc for plasma remelting
\jour TVT
\yr 2020
\vol 58
\issue 4
\pages 584--589
\mathnet{http://mi.mathnet.ru/tvt11359}
\crossref{https://doi.org/10.31857/S0040364420040031}
\elib{https://elibrary.ru/item.asp?id=43824018}
\transl
\jour High Temperature
\yr 2020
\vol 58
\issue 4
\pages 539--544
\crossref{https://doi.org/10.1134/S0018151X20040033}
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Linking options:
https://www.mathnet.ru/eng/tvt11359
https://www.mathnet.ru/eng/tvt/v58/i4/p584
This publication is cited in the following 1 articles:
M. Kh. Gadzhiev, M. V. Il'ichev, D. I. Yusupov, A. S. Tyuftyaev, “Application of low-temperature atmospheric-pressure plasma in metallurgy”, Russ. Metall., 2021:12 (2021), 1504–1509