FIELD: metallurgy.
SUBSTANCE: meshed foam material is taken, and oxygen is supplied inside it. Molten aluminium or aluminium alloy is passed through meshed foam material; besides, partial oxygen pressure is maintained equal at least to 2.51×10-35 atm during filtration process. Device includes mesh filter from foam material containing aggregate phase and binding phase, at least one of which includes silicon dioxide, and source for creation of partial oxygen pressure in the above meshed filter at increased temperature.
EFFECT: providing the possibility of excluding the reaction between material of filter and molten metal.
18 cl, 6 dwg
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