Plasma torch front electrode

Details Plasma torch front electrode Plasma torch front electrode

1991-06-25

1993-05-25

Paschall, Mark H.

Electric heating

Metal heating

By arc

219119, 21912152, B23K 900

Patent

active

052142647

ABSTRACT:
An enlarged and generally cup-shaped front section of the central passageway of the main body of the electrode has a rearwardly and inwardly sloping wall that extends at an angle within the range of approximately twenty to forty degrees relative to a plane perpendicular to the central axis of the electrode. The front section of the passageway has a readily replaceable and forwardly disclosed choke member having a central opening of a diameter within the range of 1.25 to 1.9 times the diameter of a rear section of the passageway. The rear section of the electrode passageway increases in diameter along a forward part of its length. The choke member comprises one of a set of similar choke members that differ from each other in the diameter of their central openings and/or in the electrically conductive material of which they are formed.

REFERENCES:
patent: 3097292 (1963-07-01), Kugler et al.
patent: 3825718 (1974-07-01), Moslashvili et al.
patent: 4463245 (1984-07-01), McNeil
patent: 4540868 (1985-09-01), Liebing
patent: 4549065 (1985-10-01), Camacho et al.
patent: 4587397 (1986-05-01), Camacho et al.
patent: 4620080 (1986-10-01), Arata et al.
patent: 4841114 (1989-06-01), Browning
patent: 4861962 (1989-08-01), Sanders et al.

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