Heat treatment method and apparatus using thermal plasma, and he

Electric heating – Metal heating – By arc

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Details

21912137, 21912148, 21912143, 21912151, B23K 1000

Patent

active

061569933

ABSTRACT:
In the method, apparatus and the substance produced thereby: a plasma flame 1 is produced by a plasma torch 11; the plasma flame 1 is passed through a plasma flame furnace 21 which controls the heat of the plasma flame 1; then, the plasma flame 1 is injected into a reactor column 31 to heat the substance. The substance may be a particle. The plasma flame 1 has a wide flame area in which a temperature of flame is uniform.

REFERENCES:
patent: 5066125 (1991-11-01), Rogers et al.
patent: 5222448 (1993-06-01), Morgenthaler et al.
patent: 5340023 (1994-08-01), Itoh et al.
patent: 5560844 (1996-10-01), Boulos et al.
patent: 5749937 (1998-05-01), Detering et al.
patent: 5908566 (1999-06-01), Seltzer

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