Filter for molten ferrous metal

Details Filter for molten ferrous metal Filter for molten ferrous metal

1989-03-14

1991-07-02

Andres, Melvyn J.

Metallurgical apparatus

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

By separating metal in a molten mass from undesired...

75407, 2105101, B01D 2901

Patent

active

050280368

ABSTRACT:
The filtration of molten ferrous metal is accomplished by providing a porous ceramic filter preferably comprising particles of alumina and partially stabilized zirconia that are spaced by interconnected cells to form circuitous and tortuous pathways throughout the ceramic body. The filter is a disc-like structure that can have different surface configuration such as corrugations or a waffle design. The filter can be flat-surfaced with an array of cylindrical openings or counterbored openings extending completely through the filter, or with openings extending partially into the filter from the upper and lower sides of the filter. Several relatively thin filters can be arranged in tandem, if desired.

REFERENCES:
patent: 3963504 (1976-06-01), Lundsager
patent: 4573664 (1986-03-01), Prendergast
patent: 4667939 (1987-05-01), Luyckx
patent: 4681624 (1987-07-01), DeAngelis et al.
patent: 4713180 (1987-12-01), Hofmann et al.

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