Gas control system for a plasma arc welding apparatus

Details Gas control system for a plasma arc welding apparatus Gas control system for a plasma arc welding apparatus

1985-11-29

1987-09-08

Paschall, M. H.

Electric heating

Metal heating

By arc

219121PT, 219121PR, B23K 904

Patent

active

046925848

ABSTRACT:
Plasma arc welding apparatus including a plasma torch having a body defining a flow passage for plasma gas an orifice through which plasma gas exits the torch as a high-temperature jet stream utilizes an actuatable slope control valve operatively connected in relatively close flow proximity with the torch orifice. By controlling the adjustment of the actuatable valve, the flow of plasma gas through the torch orifice is accurately controlled.

REFERENCES:
patent: 3004189 (1961-10-01), Giannini
patent: 3803380 (1974-04-01), Ragaller
patent: 3988566 (1976-10-01), Vogts et al.
patent: 4195216 (1980-03-01), Beauchamp et al.
patent: 4580032 (1986-04-01), Carkhuff

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