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Thermophysics and Aeromechanics

2009 year, number 4

Investigation of the high-current arc in helium

A.S. An'shakov, E.K. Urbakh, S.P. Vashchenko, B.A. Pozdnyakov, A.E. Urbakh, V.A. Faleev, V.S. Cherednichenko
Keywords: arc discharge, plasmatorch, electrode erosion, arc current and voltage
Pages: 687-689

Abstract

The secondary and erosion characteristics of the electric-arc plasmatorch were studied experimentally. Formulas for arc voltage calculation depending on helium flow rate, diameter of the inner cavity of cylindrical copper anode, arc current, and distance from the nozzle to metal melt were derived.