Process for increasing the life of carbon crucibles in plasma fu

Details Process for increasing the life of carbon crucibles in plasma fu Process for increasing the life of carbon crucibles in plasma fu

1990-04-23

1991-02-05

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266275, 266280, 373 72, C22B 400

Patent

active

049901796

ABSTRACT:
The excessive wear and formation of ring-like cavities in carbon crucibles used to contain iron-based compositions that are heated in a plasma furnace to a temperature of from about 2000.degree. C. to aboout 2700.degree. C. are reduced or eliminated by adding carbon particles to the crucible in amounts of at least about 6 weight percent of the melt, and preferably in amounts exceeding the solubility of carbon in the heated melt.

REFERENCES:
patent: 1274479 (1918-08-01), Wenman
patent: 1836618 (1931-12-01), Pokorny
patent: 3002824 (1961-10-01), Francois
patent: 3699213 (1972-10-01), Cosman et al.
patent: 3783167 (1974-01-01), Tylko
patent: 4093190 (1978-06-01), Sprunck et al.
patent: 4466824 (1984-08-01), Gauvin et al.
patent: 4806325 (1989-02-01), Munday et al.
patent: 4883258 (1989-11-01), Foster

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