Plasma burner with replaceable consumable electrodes

Details Plasma burner with replaceable consumable electrodes Plasma burner with replaceable consumable electrodes

1986-05-06

1987-12-01

Paschall, M. H.

Electric heating

Metal heating

By arc

219121PR, 219121PM, 219119, 373 18, 373 22, 373 24, B23K 900

Patent

active

047106077

ABSTRACT:
A plasma burner comprises an electrode holder which carries a tubular outer electrode and a coaxially arranged central electrode, and an electrical current supply source, which can be coupled via current feeders to the outer and central electrodes respectively. Also a device is provided for feeding gas into the region of the electrodes, between which an arc is produced for plasma formation. The tubular outer electrode has a first cooled, arc-inactive tube section, consisting of electrically conductive metal, and an adjoining second arc-active uncooled tube section, which consists of heat-resistant and electrically conductive material, and which is releasably connected to the first tube section. The arc passes between the second tube section and the neighboring arc-active section of the coaxial central electrode.

REFERENCES:
patent: 3369067 (1968-02-01), De Corso
patent: 3558791 (1971-01-01), Gracnev
patent: 3615924 (1971-10-01), Swobodu et al.
patent: 4289949 (1981-09-01), Raaness et al.
patent: 4390773 (1983-06-01), Esser et al.

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