Erosion of tube electrodes in vortex plasmatorches
B.I. Mikhailov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Pages: 429–438
Abstract
The stationary modes of the end-face tube electrodes operation are under consideration. The formation of cathode and anode jets which cause dramatic increase in the electrode erosion at the arc current growth has been explained. We have considered the ways to increase the life-time of the continuous operation of tube electrodes. The analysis of the thermophysical interaction of the arc spot and electrode surface has enabled us to choose the optimum metal for the electrode.
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