Apparatus for inline degassing and filtration of molten metal

Details Apparatus for inline degassing and filtration of molten metal Apparatus for inline degassing and filtration of molten metal

1979-01-15

1981-11-03

Rosenberg, P. D.

Metallurgical apparatus

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

By means introducing treating material

75 67R, 75 68R, C21C 700

Patent

active

042981875

ABSTRACT:
The disclosure teaches an improvement in the degassing and filtration of molten metal, especially aluminum, using an apparatus which employs a pair of sequentially placed, removable filter-type plates and at least one fluxing gas inlet positioned therebetween. The first of said filter-type plates is characterized by a plurality of holes which provide a preferential path through which the fluxing gas flows upwardly through the first of said filter plates in counter-current contact with the melt. Said plate serves to break up said fluxing gas into a fine dispersion to assure its intimate and extensive contact with the melt. Dissolved gases and non-metallic inclusions are thereby abstracted and removed from the melt.

REFERENCES:
patent: 23123 (1859-03-01), Stewart
patent: 3490897 (1970-01-01), Dore
patent: 4052198 (1977-10-01), Yarwood
patent: 4159104 (1979-06-01), Dantzig

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