The Paton Welding Journal, 2009, №04



2009 №04 (04)

2009 №04 (06)

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TPWJ, 2009, #4, 27-31 pages  
EFFECT OF THE COMPOSITION OF PLASMA AIR-GAS MIXTURE ON PARAMETERS OF THE PLASMATRON JET


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 4, 2009 (April)
Pages                       27-31
 
 
Authors
V.N. PASHCHENKO
National Technical University of Ukraine «Kiev Polytechnic Institute», Kiev, Ukraine
 
 
Abstract
The possibility of controlling energy parameters of plasmatrons with a combined energy supply is studied. It is shown that changing the content of a hydrocarbon component in the initial plasma mixture allows changing over a wide range the absolute value of the plasmatron power and its specific energy parameters during operation, as well as influencing the oxidation-reduction potential of a working medium and conditions of electrode operation. Several possible modes of operation of plasmatrons with the hydrocarbon component in the initial plasma mixture are proposed, allowing changing conditions of the technological process by using the same unchanged design.
 
 
Keywords: deposition of coatings, surface treatment, plasmatrons, combined energy supply, control of plasmatron power, oxidation-reduction potential of environment
 
 
Received:                02.09.08
Published:               28.04.09
 
 
References
1. Pashchenko, V.M. (1998) Investigation of jets of the plasmatron functioning with plasma-forming mixtures of the C-N-O-H system for deposition of coatings. In: Proc. of Int. Conf. on Advanced Engineering and Technology of Machine-Building, Instrument-Making and Welding Production (Kyiv, 25-28 May, 1998). Vol. IV. Kyiv: NTUU KPI, 333-337.
2. Pashchenko, V.M. (2001) Equipment for thermal deposition of coatings: Manual. Kyiv: Politekhnika.
3. Pashchenko, V.N. (1998) Particularities of application of multi-component gas mixtures in plasmatrons for coating deposition. Avtomatich. Svarka, 6, 23-26.
4. Petrov, S.V., Karp, I.N. (1993) Plasma air-gas spraying. Kiev: Naukova Dumka.
5. Pashchenko, V.M., Solodky, S.P. (2003) Influence of hydrocarbon component on energy parameters of plasma sprayers functioning with mixtures of air with hydrocarbon. Visnyk Skhidnoukr. Nats. Un-tu im. V. Dalya, Issue 11(69), 64-68.
6. (1979) Principles of calculation of linear-scheme plasmatrons: Operative-inform. document. Ed. by M.F. Zhukov. Novosibirsk: ITF.
7. Donskoj, A.V., Klubnikin, V.S. (1979) Electric-plasma processes and units in machine-building. Leningrad: Mashinostroenie.
8. Borisov, Yu.S., Borisova, A.L. (1986) Plasma powder coatings. Kiev: Tekhnika.

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Suggested Citation

V.N. PASHCHENKO (2009) EFFECT OF THE COMPOSITION OF PLASMA AIR-GAS MIXTURE ON PARAMETERS OF THE PLASMATRON JET. The Paton Welding J., 04, 27-31.

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