Plasma torch with improved cooling

Details Plasma torch with improved cooling Plasma torch with improved cooling

1991-02-25

1993-09-21

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912148, 21912159, 219 75, B23K 900

Patent

active

052471527

ABSTRACT:
A plasma torch and the method of cooling the torch wherein specified heated surfaces and in particular the heated tip portion of an electrode within the torch have a low volume of liquid coolant directed thereagainst. The volume of the liquid coolant is controlled so that the liquid coolant evaporates into vapor as it contacts the specified heated surfaces.

REFERENCES:
patent: 2906857 (1959-09-01), Nestor
patent: 3450926 (1969-06-01), Kierman
patent: 3597649 (1971-08-01), Bykhovsky et al.
patent: 3731047 (1973-05-01), Mullen et al.
patent: 4024373 (1977-05-01), Bykhovsky et al.
patent: 4125754 (1978-11-01), Wasserman et al.
patent: 4477711 (1984-10-01), Mihara et al.
patent: 4505945 (1985-03-01), Dubust et al.
patent: 4558201 (1985-12-01), Hatch

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