Filtering and inline degassing of molten metal

Details Filtering and inline degassing of molten metal Filtering and inline degassing of molten metal

1977-07-29

1979-05-15

Sever, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

75 20F, 75222, 210510, B01D 2702, B01D 2704

Patent

active

041546890

ABSTRACT:
The disclosure teaches an improvement in the filtration of molten metal especially aluminum using a removable vertically disposed filter plate and at least one fluxing gas inlet positioned in such a manner so as to introduce fluxing gas into the filter plate. The filter plate is provided with a bevelled peripheral surface mating with a like bevelled surface in a filter chamber so that the filter plate can be conveniently inserted in the chamber and removed therefrom. Fluxing gas is provided to the melt through the inlet and flows through the filter plate so as to assure extensive contact with the melt. Dissolved gases and non-metallic inclusions are thereby abstracted and removed from the melt.

REFERENCES:
patent: 1152875 (1915-09-01), Brockbank
patent: 3574646 (1971-04-01), Wismer et al.
patent: 3610421 (1970-01-01), Gurney
patent: 3897336 (1975-07-01), Bydalek et al.

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