Thermochemical treatment system and process

Details Thermochemical treatment system and process Thermochemical treatment system and process

1978-02-07

1980-01-01

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

148 16, 204164, 204177, C23C 1112, C23C 1302, C23C 1312

Patent

active

041815416

ABSTRACT:
Thermochemical Treatment System and Process for the treatment of steel or steel alloys by ionic bombardment. Two successive stages of operation are involved in which during the first stage, a DC voltage is applied across the electrodes of a furnace so that the furnace operates at a point far enough away from the arc formation zone to prevent formation of an arc and lies in the zone of abnormal discharge. During the second stage, a succession of pulses of voltage pulses of high voltage but of limited energy is applied to the furnace electrodes, and the operating point of the furnace moves along the voltage-intensity curve to a limit point far enough away from the arc formation zone, so that no arc formation takes place.

REFERENCES:
patent: Re28918 (1976-07-01), Humbert
patent: 3035205 (1962-05-01), Berghaus et al.
patent: 3190772 (1965-06-01), Berghaus et al.
patent: 3571558 (1971-03-01), Hogan, Jr.

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