Method for the arc cutting of metal

Details Method for the arc cutting of metal Method for the arc cutting of metal

1981-07-24

1983-07-12

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

219 70, 219 68, 219 72, 2191451, B23K 900, B23K 3500

Patent

active

043932975

ABSTRACT:
Disclosed is an improved method for arc cutting of metal, more specifically a method in which an electric arc is formed between the metal and a cutting torch and gas is blown into the cut during the cutting process. According to the invention a paste is injected through the torch into the region of the arc, said paste containing a finely-divided electrically conducting substance mixed with a carrier and acting as an electrode which causes the electric arc to be struck. The conducting substance may contain e.g. metal powder, such as powder of aluminium or of an aluminium alloy, to which also carbon and phosphorus may be added.

REFERENCES:
patent: 1412656 (1922-04-01), Jenkins
patent: 3424054 (1969-01-01), Cook et al.
patent: 4319116 (1982-03-01), Kauppi et al.

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