Molten aluminum refining apparatus

Details Molten aluminum refining apparatus Molten aluminum refining apparatus

1997-05-02

1998-12-08

Kastler, Scott

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By means introducing treating material

266235, 266216, C21C 700

Patent

active

058464816

ABSTRACT:
An improved molten aluminum refining apparatus in which the refining gas passageway is defined by a helical groove in the rotor shaft and sleeve for heating gas by contact with the sleeve as it flows toward the rotor to generally the temperature of the melt; which comprises a stator surrounding the sleeve and occupying a portion of the surface of the molten aluminum, and wherein the vessel comprises side walls that diverge upwardly at an angle of from about 5 degrees to about 16 degrees for permitting the gas bubbles to expand without substantial coalescence as the bubbles move upwardly in the melt reducing the metallostatic pressure on the respective bubbles.

REFERENCES:
patent: 3645520 (1972-02-01), Acre et al.
patent: 3743263 (1973-07-01), Szekely
patent: 5234202 (1993-08-01), Pelton
patent: 5364078 (1994-11-01), Pelton

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