Method of plasma treatment of materials

Details Method of plasma treatment of materials Method of plasma treatment of materials

1979-07-09

1982-03-02

Rubinson, Gene Z.

Electric heating

Metal heating

By arc

219121PY, 219121PW, 219 75, 219137R, B23K 900

Patent

active

043179843

ABSTRACT:
Disclosed is a method of plasma treatment of materials comprising introducing a plasma-forming mixture including carbon-containing compounds chosen from the class of hydrocarbons or carbon monoxide into the space between the electrodes of an electric arc device to provide deposition of carbon at least on one of the electrodes of an electric arc device in the course of arc burning, striking an electric arc, and introducing an oxidizing agent into said space between the electrodes to improve the stability of arc burning, the oxidizing agent being introduced into said space between the electrodes over a time interval between the instant when a heat flow into the electrode whereon carbon is deposited reaches its maximum value and the instant when said heat flow drops down to a steady value.

REFERENCES:
patent: 2952706 (1960-09-01), Lipscomb
patent: 3246115 (1966-04-01), Johnson
patent: 3307011 (1967-02-01), Baird
patent: 3671655 (1972-06-01), Adachi et al.
patent: 3828162 (1974-08-01), Holder
patent: 4141694 (1979-02-01), Camacho

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