Refractory porous plug

Details Refractory porous plug Refractory porous plug

1983-07-01

1987-04-28

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266 46, 266220, 266270, C22B 1514

Patent

active

046611533

ABSTRACT:
In an in-line refining vessel (50) having submerged porous plugs (20) for bubbling oxygen through the molten metal, a shroud device (52) to circulate nitrogen around the porous plug (20) and oxygen supply pipe (25).

REFERENCES:
patent: 2811346 (1957-10-01), Spire
patent: 3343829 (1967-09-01), Coates
patent: 3850620 (1974-11-01), Themelis et al.
patent: 4326701 (1982-04-01), Hayden, Jr. et al.
patent: 4435211 (1984-03-01), Schwartz et al.

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