Plasma arc welding apparatus

Details Plasma arc welding apparatus Plasma arc welding apparatus

1987-09-04

1988-10-04

Paschall, M. H.

Electric heating

Metal heating

By arc

21912151, 21912154, B23K 900

Patent

active

047757744

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), Regaller
patent: 4023006 (1977-05-01), West et al.
patent: 4175225 (1979-11-01), Holko et al.
patent: 4195216 (1980-03-01), Beauchamp et al.

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