Nozzle for use in a torch head of a plasma torch apparatus

Details Nozzle for use in a torch head of a plasma torch apparatus Nozzle for use in a torch head of a plasma torch apparatus

1999-06-01

2000-10-24

Walberg, Teresa

Electric heating

Metal heating

By arc

21912147, B23K 900

Patent

active

061370789

ABSTRACT:
The nozzle is provided with a plurality of cooling channels running from an annular channel located in an inlet region of the nozzle through the nozzle in longitudinal direction up to an outlet region of the nozzle. The powder supply channels provided for the supply of coating material are led between the cooling channels. A nozzle support member adapted for receiving the nozzle is provided with cooling ducts that are hydraulically connected to the cooling channels of the nozzle and constitute therewith a nozzle cooling circulation system. The advantages of this design can be seen in the facts that the nozzle is homogeneously and efficiently cooled up to its outlet end and that the danger of building-up molten deposits within the nozzle is substantially avoided.

REFERENCES:
patent: 3183337 (1965-05-01), Winzeler et al.
patent: 3197605 (1965-07-01), Sunnen
patent: 3823302 (1974-07-01), Muehlberger
patent: 4125754 (1978-11-01), Wasserman et al.
patent: 4389559 (1983-06-01), Rotolico et al.
patent: 4549065 (1985-10-01), Camacho et al.
patent: 4851254 (1989-07-01), Yamamoto et al.
patent: 5043548 (1991-08-01), Whitney et al.
patent: 5099788 (1992-03-01), Ito et al.
patent: 5328516 (1994-07-01), Dietiker

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