The invention discloses an aluminum
alloy refining agent containing a
rare earth element and a preparation method thereof, and belongs to the technical field of aluminum
alloy processing. The aluminumalloy refining agent containing the
rare earth element comprises the following components of, by weight, 30-50 parts of NaCl, 15-30 parts of CaS, 6-14 parts of CaSO4, 5-10 parts of MgF2, 3-11 parts of Na3AlF6, 4-8 parts of Na2SiF6, 0.5-1.0 part of C2Cl6, 15-25 parts of
graphite, 20-30 parts of
plant ash, 2-3 parts of
ytterbium, 0.5-1.5 part of
dysprosium and 1-3 parts of
cerium. According to thealuminum
alloy refining agent containing the
rare earth element and the preparation method thereof, the raw materials of the refining agent contain the
graphite, the
plant ash and a rare-earth compound, the degassing and
slag removing capacity of the refining agent can be improved, the
hydrogen content of the aluminum alloy melt is low, and the
slag removal rate is high; and the aluminum alloy preparation method is simple, good in degassing and
slag removing effects and suitable for industrial production.