Apparatus for thermochemical treatments of metals by ionic bomba

Details Apparatus for thermochemical treatments of metals by ionic bomba Apparatus for thermochemical treatments of metals by ionic bomba

1984-10-04

1987-06-09

Paschall, M. H.

Electric heating

Metal heating

By arc

219121P, 219121EB, 219121PD, 20419231, B23K 1500

Patent

active

046721703

ABSTRACT:
Apparatus for thermochemical treatment of metals with accurate control of the treatment temperature in a furnace having a structure similar to that of a classic furnace for thermal or thermochemical treatment in a rarified atmosphere, equipped with a controlled heater, and possibly a cooler, an anode, and a cathode supporting the pieces to be treated. A cold plasma is generated around the pieces to be treated by applying between the anode and the cathode a pulse train at a relatively high frequency and of very short pulse width in relation to pulse repetition rate.

REFERENCES:
patent: 4094764 (1978-06-01), Boucher
patent: 4116791 (1978-09-01), Zega
patent: 4253907 (1981-03-01), Parry et al.
patent: 4297387 (1981-10-01), Beale
patent: 4342631 (1982-08-01), White et al.
patent: 4348577 (1982-09-01), Toyoda et al.

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