2015 №04 (03) DOI of Article
2015 №04 (05)

The Paton Welding Journal 2015 #04
TPWJ, 2015, #3/4, 36-41 pages

Experimental investigation of process of plasma-arc wire spraying

Journal                   The Paton Welding Journal
Publisher                International Association «Welding»
ISSN                      0957-798X (print)
Issue                      № 3/4, 2015 (March/April)
Pages                     36-41
I.P. Gulyaev1, 2, P.Yu. Gulyaev2, V.N. Korzhik3, A.V. Dolmatov2, V.I. Iordan1, 4, I.V. Krivtsun3, M.Yu. Kharlamov3 And A.I. Demianov3
1S.A. Khristianovich Institute of Theoretical and Applied Mechanics, SB RAS. 4/1 Institutskaya Str., 630090, Novosibirsk, RF. E-mail: admin@utam.nsc.ru
2State University, Yugra. 16 Chekhov Str., 628012, Khanty-Mansiysk, Tyumen region, RF. E-mail: ugrasu@ugrasu.ru
3E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
4AltaiStateUniversity. 61 Lenin Ave., 656049, Barnaul, Altai region, RF
Application of current diagnostic systems becomes very important in development of fundamental concepts in area of thermal spraying and obtaining of new experimental data, in particular, on plasma-arc wire spraying. Firmware complex based on machine vision camera and digital spectrometer was proposed for experimental study of process of plasma-arc wire spraying of coatings. Procedure for experimental investigations of given process was developed. Results of measurements of velocity and temperature of dispersed phase particles as well as video of the most typical steps of plasma-arc spraying, including detachment of droplets from wire being sprayed and their breaking in plasma flow, were represented. Distribution of particles being sprayed in size was investigated and its effect on possibilities of temperature changes was analyzed. Experimental data obtained verified theoretical representations on types of flow and decomposition of jet of wire molten metal as well as droplet breaking in plasma jet. 18 Ref., 11 Figures.
Keywords: thermal spraying, plasma-arc wire spraying, firmware complex, plasma flow, dispersed phase, formation of drops of liquid metal, measurement of particle temperature, process visualization, spectral analysis
Received:               03.03.15
Published:               21.05.15
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