Dynamic Model of the Wire Dispersion Process in Plasma-Arc Spraying

The dynamic mathematical model is suggested, describing the jet flow of a molten wire material and formation of droplets, i.e. spraying particles, under conditions of plasma-arc wire spraying. Numerical analysis of the processes of formation and detachment of droplets was carried out, and the effect...

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Veröffentlicht in:Journal of thermal spray technology 2014-02, Vol.23 (3), p.420-430
Hauptverfasser: Kharlamov, M. Yu, Krivtsun, I. V., Korzhyk, V. N.
Format: Artikel
Sprache:eng
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Zusammenfassung:The dynamic mathematical model is suggested, describing the jet flow of a molten wire material and formation of droplets, i.e. spraying particles, under conditions of plasma-arc wire spraying. Numerical analysis of the processes of formation and detachment of droplets was carried out, and the effect of spraying parameters on the above processes was investigated. It was shown that the size and interval of detachment of the droplets strongly depend on the diameter and feed speed of the anode wire being sprayed, as well as on the plasmatron operation mode.
ISSN:1059-9630
1544-1016
DOI:10.1007/s11666-013-0027-4