Plasma torch and a method of producing a plasma

Details Plasma torch and a method of producing a plasma Plasma torch and a method of producing a plasma

1979-03-21

1981-06-23

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

219121PA, 219123PP, 219125PQ, B23K 900

Patent

active

042752876

ABSTRACT:
A plasma torch includes an annular cathode having an annular peripheral edge from which an arc is discharged. A pair of annular nozzle elements are coaxially disposed on the opposite sides of the cathode. Each nozzle element has an annular edge hanging over the annular peripheral edge of the cathode, and the annular edges of the nozzle elements define therebetween an annular outlet opening for the torch. Gas is introduced between the cathode and the nozzle elements and emitted through the annular outlet opening in a plasma jet. A magnetic field is developed across the annular outlet opening to cause the plasma jet to rotate along the annular peripheral edge of the cathode for its uniform emission from the entire perimeter of the annular outlet opening.

REFERENCES:
patent: 3361927 (1968-01-01), Buhler
patent: 3403277 (1968-09-01), Way et al.
patent: 3445191 (1969-05-01), Brunning et al.
patent: 3521106 (1970-07-01), Hess

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