Molten metal filter

Details Molten metal filter Molten metal filter

1975-07-18

1977-02-15

Lake, Roy

Metallurgical apparatus

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

By means introducing treating material

210 69, 266227, C21C 700

Patent

active

040079236

ABSTRACT:
A method of and apparatus for treating molten aluminum and aluminum alloys to remove solid and gaseous impurities therefrom are disclosed. Molten metal is flowed through an integrated series of successively arranged purification stages including a deslagging stage wherein relatively large particulate impurities are removed from the molten metal by filtering the same through a woven refractory filter, a fluxing stage for removing entrapped and dissolved hydrogen from the molten metal, an adsorption stage wherein the molten metal is passed over a plurality of impurity-adsorbing refractory plates and a final filtration stage wherein the finer particulate impurities are removed by filtering the molten metal through a rigid, porous refractory filter medium.

REFERENCES:
patent: 2863558 (1958-12-01), Brondyke et al.
patent: 3006473 (1961-10-01), Gamber
patent: 3436213 (1969-04-01), Norris
patent: 3490897 (1970-01-01), Dore et al.
patent: 3654150 (1972-04-01), Eccles
patent: 3743263 (1973-07-01), Szekely
patent: 3815754 (1974-06-01), Rosenberg
patent: 3904180 (1975-09-01), Bass et al.
patent: 3917242 (1975-11-01), Bass et al.

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