Electric heating – Metal heating – By arc
Patent
1981-09-30
1984-03-27
Paschall, M. H.
Electric heating
Metal heating
By arc
219121PQ, 219121PU, B23K 900
Patent
active
044396627
ABSTRACT:
Disclosed is a method of operating a plasma generating apparatus including at least one multi-bushed torch unit. The ratio of inside gas flow rate-to-outside gas flow rate in the channels of the torch unit are experimentally determined so as to assure the alignment of the electric arc in the torch unit, and the plasma generating apparatus is operated with the gases flowing at the so-determined flow rates.
REFERENCES:
patent: 3770935 (1973-11-01), Tateno
patent: 3949188 (1976-04-01), Tateno
Paschall M. H.
Rikagaku Kenkyusho
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