Plasma torch

Details Plasma torch Plasma torch

1987-12-23

1989-06-27

Paschall, M. H.

Electric heating

Metal heating

By arc

21912148, 21912151, 21912152, 219 75, B23K 900

Patent

active

048432083

ABSTRACT:
A plasma torch head adapted to cut longitudinal slots in tubes from the interior is disclosed. The plasma torch head includes an outer body made of reinforced fiberglass. An adhesive is used to affix fiberglass components of the torch head together to form a gas tight seal. As a cut is made, the outer body of the torch becomes charred. At the end of each cut the torch head is either replaced or rebuilt. Gas to support the plasma and electric power is supplied to the torch head via an electrically conductive tube concentric with the major axis of the torch head.

REFERENCES:
patent: 4423304 (1983-12-01), Bass et al.
patent: 4531043 (1985-07-01), Zverina et al.
patent: 4555609 (1985-11-01), Marhic et al.
patent: 4558201 (1985-12-01), Hatch
patent: 4661682 (1987-04-01), Gruner et al.
patent: 4748312 (1988-05-01), Hatch et al.

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