| 摘要 |
Molten aluminum-silicon alloys or aluminum base alloys containing substantial amounts of silicon which contain deleterious amounts of titanium are refined by treatment with a fluoride flux less dense than the alloy and having a boiling point above the liquidus temperature of the alloy. The alloy is first prepared or formed in a suitable furnace. The molten alloy formed therein is transferred to a ladle via a tap hole in the furnace. While the molten alloy is in the ladle at the tap hole area, solid granular flux is added thereto in a sufficient amount to reduce but not entirely eliminate the titanium content of the alloy. Subsequently, the alloy and flux are separated. A second fluxing treatment may be performed after the ladle has been removed from the tapping area.
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