Plasma arc torch head

Details Plasma arc torch head Plasma arc torch head

1978-08-02

1980-12-30

Reynolds, B. A.

Electric heating

Metal heating

By arc

219 75, 219123, B23K 900

Patent

active

042425620

ABSTRACT:
In the body of a plasma arc torch head coolant inlet ducts extend normally to the portions of the nozzle surface subject to maximum heating. The rate of cooling and a permissible power of the plasma arc torch are markedly increased by directing the flow of incoming coolant directly against the surface being cooled. Where the nozzle lateral surface is exposed to the effect of a plasma-forming arc, the coolant inlet ducts are arranged so as to open radially into said lateral surfaces. If electromagnetic coils are provided to allow control over the plasma jet, a coolant is supplied to effect intensive cooling of the nozzle end face.

REFERENCES:
patent: 3370148 (1968-02-01), Von Ardenne
patent: 3390292 (1968-06-01), Perugini
patent: 3450926 (1969-06-01), Kiernan
patent: 3452239 (1969-06-01), Wolf et al.
patent: 3760145 (1973-09-01), Wolf et al.
patent: 3851140 (1974-11-01), Coucher
patent: 3924092 (1975-12-01), Lessmann et al.
patent: 3953705 (1976-04-01), Painter
patent: 4127760 (1978-11-01), Meyer

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