Magnesium alloy containing rare earth element and preparation method thereof
A technology of magnesium alloy and rare earth magnesium, which is applied in the field of magnesium alloy containing rare earth and its manufacture, can solve the problems of poor surface quality and unsuitable surface decoration coating, etc., and achieve the effect of excellent casting performance
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Embodiment 1
[0030] A method for manufacturing a magnesium alloy containing beryllium, comprising the steps of:
[0031] (1) Prepare the first magnesium alloy molten solution that does not contain rare earths, adopt a crucible resistance furnace, melt the pure magnesium ingot containing Mg99.95% under the protection of flux, and add the aluminum ingot containing 99.90% Al and Zinc ingots containing 99.99% of Zn and electrolytic manganese powder containing 99.78% of Mn are refined and slag removed after melting according to the metering ratio to obtain the first magnesium alloy molten solution not containing rare earth, wherein the first magnesium alloy The weight percentage of the alloy is: aluminum 3.0%, zinc 12%, manganese 0.15%, the rest is magnesium and unavoidable impurities;
[0032] (2) Preparation of rare earth magnesium master alloy, in the electrolytic furnace, with potassium chloride, magnesium chloride and lanthanum praseodymium neodymium cerium chloride as electrolyte, with gr...
Embodiment 2
[0038] The manufacturing method is the same as in Example 1. Wherein, the weight percentage of the first magnesium alloy in the preparation method is: aluminum 4.5%, zinc 14%, manganese 0.40%, the rest is magnesium and unavoidable impurities; the content of mixed rare earth in the rare earth magnesium master alloy is 22.0%, The rest is magnesium and unavoidable impurities; the weight percentage of aluminum-beryllium alloy is: beryllium 1.0%, and the rest is aluminum and unavoidable impurities.
[0039] Among them, the weight percentage of the rare earth magnesium master alloy is: the total rare earth content is 22.0%, the content of each element of Cu, Si, Mn, Ti, Ni, Cr, Zr, Fe, Zn, Pb, Sn is not more than 0.1%, and the rest for magnesium.
[0040] The weight percentage of the final magnesium alloy is composed of: Al5.0%, Zn15%, Mn0.50%, Be0.0013%, mixed rare earth RE2.0%, Cu≤0.030%, Fe≤0.005%, Si≤0.10 %, Ni≤0.002%, and the rest is Mg. RE is a mixed rare earth with a ceriu...
Embodiment 3
[0042] A method for manufacturing a magnesium alloy not containing beryllium, the method comprising the following steps:
[0043] (1) Prepare the first magnesium alloy molten solution that does not contain rare earths, adopt a crucible resistance furnace, melt the pure magnesium ingot containing Mg99.95% under the protection of flux, and add the aluminum ingot containing 99.90% Al and Zinc ingots containing 99.99% of Zn and electrolytic manganese powder containing 99.78% of Mn are refined and slag removed after melting according to the metering ratio to obtain the first magnesium alloy molten solution not containing rare earth, wherein the first magnesium alloy The weight percentage of the alloy is: aluminum 3.5%, zinc 13%, manganese 0.35%, the rest is magnesium and unavoidable impurities;
[0044] (2) Preparation of rare earth magnesium master alloy, in the electrolytic furnace, with potassium chloride, magnesium chloride and lanthanum praseodymium neodymium cerium chloride a...
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