Analysis of high-frequency processes in an electric-discharge chamber of a three-phase plasma torch at high working gas pressure

The paper deals with electrophysical processes in an electric-discharge chamber of a three-phase AC plasma torch with nitrogen as working gas. The frequency characteristics of voltage pulsations depending on current, gas mass flow rate, power, and pressure are obtained. Photos of arc burning process...

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Bibliographic Details
Published inHigh temperature Vol. 55; no. 5; pp. 638 - 642
Main Authors Safronov, A. A., Vasil’eva, O. B., Dudnik, Yu. D., Kuznetsov, V. E., Shiryaev, V. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2017
Springer Nature B.V
Subjects
Alternating current
Atoms and Molecules in Strong Fields
Burning rate
Classical and Continuum Physics
Electric arcs
Electric discharges
Flow velocity
Gas pressure
Gases
Industrial Chemistry/Chemical Engineering
Laser Matter Interaction
Mass flow rate
Materials Science
Physical Chemistry
Physics
Physics and Astronomy
Plasma
Plasma Investigations
Plasma torches
Plasmas (physics)
Rare gases
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Summary:The paper deals with electrophysical processes in an electric-discharge chamber of a three-phase AC plasma torch with nitrogen as working gas. The frequency characteristics of voltage pulsations depending on current, gas mass flow rate, power, and pressure are obtained. Photos of arc burning processes in the plasma torch discharge chamber at different parameters are presented. It is shown that two arcs burn simultaneously in the plasma torch chamber and the third one either extinguishes or arises. These investigations might be useful when creating various technological processes by applying three-phase AC plasma torches operating on inert gases.
ISSN:0018-151X
1608-3156
DOI:10.1134/S0018151X17050157