Abstract
本文配置了含不同混合稀土成分的精练熔剂，以及熔剂和铝粉的混合物。研究精炼熔剂对铝熔体的精炼效果的影响，通过金相分析、熔体当中气杂含量的测定、熔剂的差示热扫描(DSC)以及动力学曲线拟合。研究结果表明含混合稀土4 g的混合精炼剂具有较低的熔点621℃，并且具有较好的精炼效果，当混合稀土添加量增加时，精炼效果降低。精炼剂中的硫酸盐对精炼效果有促进作用。 A refined flux containing different mixed rare earth elements and a mixture of flux and aluminum powder were arranged in this paper. The effect of refining agent on the refining of aluminum melt was studied by metallographic analysis, determination of gas miscellaneous content in melt, dif-ferential thermal scanning (DSC) and kinetic curve fitting of flux. The results show that the mixed refining agent with 4 g of mixed rare earth has a lower melting point of 621℃, which has a good refining effect. When the amount of mixed rare earth is increased, the refining effect is reduced. The sulphate in the refining agent has a catalytic effect on the refining effect.
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