Process of striking an arc for a plasma beam inside an enclosure

Details Process of striking an arc for a plasma beam inside an enclosure Process of striking an arc for a plasma beam inside an enclosure

1974-09-03

1976-02-10

Envall, Jr., R. N.

Electric heating

Microwave heating

Tunnel furnace

219121P, H05H 126

Patent

active

039378667

ABSTRACT:
A striking process for a plasma beam at high temperature which includes an enclosure between two torches located at opposite sides of the enclosure and outside the enclosure, a stick-electrode introduced lengthwise through a window of one of the torches and brought near the opposite torch until the plasma flame hooks to the stick-electrode, thereby closing between the nozzle and the stick-electrode the circuit of a superimposed current, then pulling the stick-electrode progressively from the enclosure, carrying with it the plasma beam until it meets a second torch which is energized at the very moment of extraction of the stick-electrode, and then disconnecting the stick and closing the laminar plasma flow circuit.

REFERENCES:
patent: 3520977 (1970-07-01), Petersen
patent: 3749802 (1973-07-01), Camacho
patent: 3749803 (1973-07-01), Camacho
patent: 3830950 (1974-08-01), Schoumaker et al.

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