The influence of online purification device on the slag content of a certain 7 ××× series aluminum alloy melt
A certain 7 ×××-aluminum-alloy slag samples from the outlet of the holding furnace,the online degasser and the filter were measured with the off-line slag analyzer based on the PoDFA method.The slag content and type were determined and the source was analyzed.The results show that the slags typically contain alumina,magnesium oxide,met-allurgical spinel and decrease grain refiner.Slags decrease slightly after degassing and great-ly after filtering.
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