The effect of JGJ-3 refining agent containing RE on refining A1-Cu alloy has been studied. The results show that this smokeless,smellless and nonpoisonous refining agent can replace hex- achloroethane to be used in Al-alloy effectuately,and the casting with grade-1 pinhole can be obtained.
Rare-Earth;
Al-Cu Alloy;
Refining
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