Electrode for use in plasma arc working torch

Details Electrode for use in plasma arc working torch Electrode for use in plasma arc working torch

1991-06-26

1993-04-06

Paschall, Mark H.

Electric heating

Metal heating

By arc

219119, 21912149, B23K 900

Patent

active

052005941

ABSTRACT:
An electrode for use in a plasma arc working torch having an insert of refractory metal inserted in the hollow formed in a base electrode is disclosed wherein the insert has a nickel film electroplated and a noble metal film plated thereon and is mounted in a pressed state. It is also disclosed that a metal having a low melting point is filled in a space defined by the hollow of the base electrode and the end face of the insert.

REFERENCES:
patent: 3198932 (1965-08-01), Weatherly
patent: 3597649 (1971-08-01), Bykhovsky et al.
patent: 3930139 (1975-12-01), Bykhovsky et al.
patent: 3944778 (1976-03-01), Bykhovsky et al.
patent: 4766349 (1988-08-01), Johansson et al.
patent: 4769524 (1988-09-01), Hardwick
patent: 5023425 (1991-06-01), Severance Jr.
Patent Abstracts of Japan, vol. 10, No. 118 (M-475) (2175) May 2, 1986 (English Abstract of JP 60/247,491).
E. Luder, "Handbuch der Lottechnik", 1952, Verlag Technik Berlin, Berlin, DE, pp. 347-348.

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