| 摘要 |
Aluminum and aluminum alloy melts are purified by removing entrained gaseous impurities and solid particulate impurities, primarily aluminum oxides, by bubbling a non-corrosive intimate mixture of sulfur hexafluoride in an inert gas. Magnesium levels, if present, are not significantly reduced. The process is reliable and the gas mixture safe for aluminum purifying operations and procedures.
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