FIELD: metallurgy.
SUBSTANCE: method includes purging with aluminium melt gas in a vessel with formation of hardening particles. Purging with gas is carried out by means of a nozzle unit which is in the bottom part of the vessel, at that gas containing at least 20% of oxygen volume is supplied, and the time and rate of gas supply are chosen from the condition of aluminium melt saturation with specified number of strengthening particles of aluminium oxide.
EFFECT: increased strength and wear resistance of aluminium alloys.
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