METHOD FOR PURIFYING AL-TI-B ALLOY MELT

摘要

A method for purifying Al -Ti -B) alloy includes putting and melting industrial aluminum ingot in an electromagnetic induction smelting furnace, the melt of Al being covered by a high-temperature covering agent, and its temperature up to at about 670~900°C ; adding material of K 2 TiF 6 and KBF 4 into the smelting furnace and then stirring the compounds therein to react; adding compound comprising Mg, L, Na and F to the evenly stirred K 2 TiF 6 and KBF 4 , the compound having an amount about 0.01%~1% of a sum weight of total K 2 TiF 6 and KBF 4 , and uniformly stirring for about 15~60 minutes under a reaction temperature being constantly at about 670~900°C, the dregs being removed, the Al alloy being casting molded.