Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefrom
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United States of America Patent
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-
Dec 3, 1985
Grant Date -
N/A
app pub date -
Oct 19, 1984
filing date -
Oct 21, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Hydrogen gas and non-metallic inclusions are removed from molten aluminum by a process comprising the steps of maintaining an atmosphere containing BF.sub.3 gas in a treating vessel above the surface of molten aluminum placed therein, introducing a treating gas into the molten aluminum, and removing floating non-metallic inclusions and treating gas containing hydrogen gas from the surface of the molten aluminum.
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