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Method for refining an aluminium scrap smelt
Method for refining an aluminium scrap smelt
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机译:精炼铝废料的方法
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摘要
A method of refining a melt of aluminum scrap material which comprises metallic aluminum and impurities including iron, in order to obtain a target iron level. The method includes the steps of determining the initial amounts in the melt of Mn, Fe and Si, adding a quantity of Mn to the melt so as to obtain in the melt, after refining of the melt a ratio of Mn in the melt to a desired target level of Fe. Thereafter, the method includes the steps of homogenizing the melt by heating, cooling the melt and maintaining it at a super-eutectic holding temperature so that solid intermetallic compounds form and finally separating the solid intermetallic compounds from the melt.
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