Method and torch for sustaining multiple coaxial arcs

Details Method and torch for sustaining multiple coaxial arcs Method and torch for sustaining multiple coaxial arcs

1975-12-01

1977-09-13

Truhe, J. V.

Electric heating

Metal heating

By arc

B23K 900

Patent

active

040484653

ABSTRACT:
A torch having a first non-constricting arc electrode disposed within the longitudinal bore of a second non-constricting arc electrode with the ac attachment end of the second arc electrode being annular in cross-section and extending a predetermined distance from the current transfer means for the first arc electrode. An arc is established from the arc attachment end of each arc electrode from at least one source of power. Both arcs are shielded in common with a single common shielding medium.

REFERENCES:
patent: 3064114 (1962-11-01), Cresswell et al.
patent: 3153133 (1964-10-01), Ducati
patent: 3484575 (1969-12-01), Cunningham
patent: 3612807 (1971-10-01), Liefkens et al.

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