| With low density, relatively high intensity and stiffness, easier cutting processing capability and good shielding properties,magnesium alloy is recently used in most of industries, such as, automobile, electronics, navigation, etc. With more and more wide in use , quickening the speed of update new products, so bring a lot of scraps. So that how to deal with and recycle of these used magnesium products and scraps is the key problem for wide use and continuance developing of magnesium alloys .The majority of the surface of the magnesium alloy scraps have all painted many kinds of covers, for example lacquer or oil coating etc., which become the main metal or nonmetal inclusions in magnesium alloys when magnesium alloy scraps are remelted. In the process of recycle of magnesium alloy, those inclusions qua hangover in the alloy influence the machine capability badly. Therefore, reducing the content of inclusions in the magnesium alloys is a difficulty for the callback of magnesium alloy scraps and refining processing turns into the important method to get high-purity degree magnesium alloys liquid.The rare-earths have comprehensive application in many fields, for example, metallurgy, machine, glass, chinaware and petroleum, etc. Whereas, the research about appending the rare-earths to refining flux in the magnesium alloys smelting field is appeared less. According to the benchmark and calcium flux,the original flux is manufactured. Basing on the environmental pollution and the refining effect, different masses of RE and RE oxide is appended to the original flux and the refining effect is investigated for refined magnesium alloy which applied by the refining flux of RE and RE oxide. The invention of the two kinds of refining flux extends the domain of application RE and RE oxide for refined magnesium alloy. The research material is the Am60 Mg alloy which is being applied widly in the world. The effect of the refined flux is researched from the shape,size,amount,...
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