Powder-fan plasma torch

Details Powder-fan plasma torch Powder-fan plasma torch

1998-06-11

2000-07-04

Walberg, Teresa

Electric heating

Metal heating

By arc

21912146, B23K 900

Patent

active

060841974

ABSTRACT:
A plasma arc torch includes a housing having a nozzle at one end with a central orifice. An electrode extends into the orifice for producing a plasma arc. A port is disposed in the nozzle adjacent the orifice for injecting powder into the arc. The port includes an outlet, an inlet, and a reniform manifold extending therebetween for laterally distributing the powder about the nozzle orifice. In this way, the powder may be carried to the torch underwater and is distributed circumferentially about the plasma arc while simultaneously diffusing its carrier gas.

REFERENCES:
patent: 3707615 (1972-12-01), Rotolico et al.
patent: 4029930 (1977-06-01), Sagara et al.
patent: 4390772 (1983-06-01), Hiratake
patent: 4790887 (1988-12-01), Niinivaara
patent: 4866240 (1989-09-01), Webber
patent: 5043548 (1991-08-01), Whitney et al.
patent: 5393949 (1995-02-01), Stricklen
patent: 5690844 (1997-11-01), White et al.
patent: 5730637 (1998-03-01), Suzuki et al.
patent: 5780804 (1998-07-01), White et al.

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