Electric heating – Metal heating – By arc
Patent
1991-05-29
1992-09-15
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912152, 21912148, 21912151, 219 75, B23K 900
Patent
active
051479982
ABSTRACT:
A plasma torch comprises a torch housing, rear and front tubular electrodes coaxially mounted within such housing with a gap therebetween, both electrodes being fabricated from copper having tubular inserts of refractory material, a vortex generator for introducing a tangential flow of gas in opposite direction into the tubular electrodes through the gap between the two electrodes, and a cooling system for cooling the tubular electrodes.
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patent: 4625092 (1986-11-01), Camacho et al.
patent: 4882465 (1989-11-01), Smith et al.
patent: 4891490 (1990-01-01), Labrot et al.
Hehshaw Bruce
Lachance Raynald
Mavropoulos Lakis T.
Tsantrizos Peter
Noranda Inc.
Paschall Mark H.
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