A kind of aluminum alloy conductive wire core with high scandium content for cables and preparation method thereof
A conductive wire core, aluminum alloy technology, applied in the direction of metal/alloy conductors, rods/rods/wires/strip conductors, etc., can solve the problems of few insulated wire cores, the strength and elongation of aluminum cannot meet the requirements, difficulties, etc. , to reduce creep, improve ductility and improve tensile strength
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Embodiment 1
[0025] The composition of the aluminum alloy conductive wire core with high scandium content for the cable of this embodiment is constituted by mass percentage as follows:
[0026] Sc0.6wt%, Fe0.01wt%, cerium-rich rare earth 0.04wt% (lanthanum 0.01wt%, cerium 0.03wt%), aluminum 99.35%.
[0027] The preparation method of the aluminum alloy conductive wire core with high scandium content for the cable of this embodiment is as follows:
[0028] According to the ratio, industrial pure aluminum with a purity of 99.80%, iron-aluminum master alloy (20%Fe+80%Al), cerium-rich rare earth master alloy (20% cerium-rich rare earth+80%Al) and scandium-aluminum master alloy (20% %Sc+80%Al) into the shaft furnace and heated up to 750-770°C, after melting, the alloy melt is obtained, the alloy melt flows into the holding furnace (or refining furnace), and the alloy is added to the holding furnace in a nitrogen atmosphere The refining agent with 0.05% of the melt mass is refined at 740-760°C f...
Embodiment 2
[0031] The composition of the aluminum alloy conductive wire core with high scandium content for the cable of this embodiment is constituted by mass percentage as follows:
[0032] Sc0.5wt%, Fe0.01wt%, cerium-rich rare earth 0.04wt% (lanthanum 0.01wt%, cerium 0.03wt%), aluminum 99.45%.
[0033] The preparation method of the aluminum alloy conductive wire core with high scandium content for the cable of this embodiment is as follows:
[0034] According to the ratio, industrial pure aluminum with a purity of 99.80%, iron-aluminum master alloy (20%Fe+80%Al), cerium-rich rare earth master alloy (20% cerium-rich rare earth+80%Al) and scandium-aluminum master alloy (20% %Sc+80%Al) into the shaft furnace and heated up to 750-770°C, after melting, the alloy melt is obtained, the alloy melt flows into the holding furnace (or refining furnace), and the alloy is added to the holding furnace in a nitrogen atmosphere The refining agent with 0.08% of the melt mass is refined at 740-760°C f...
Embodiment 3
[0037] The composition of the aluminum alloy conductive wire core with high scandium content for the cable of this embodiment is constituted by mass percentage as follows:
[0038] Sc0.4wt%, Fe0.01wt%, cerium-rich rare earth 0.04wt% (lanthanum 0.01wt%, cerium 0.03wt%), aluminum 99.55%.
[0039] The preparation method of the aluminum alloy conductive wire core with high scandium content for the cable of this embodiment is as follows:
[0040] According to the ratio, industrial pure aluminum with a purity of 99.80%, iron-aluminum master alloy (20%Fe+80%Al), cerium-rich rare earth master alloy (20% cerium-rich rare earth+80%Al) and scandium-aluminum master alloy (20% %Sc+80%Al) into the shaft furnace and heated up to 750-770°C, after melting, the alloy melt is obtained, the alloy melt flows into the holding furnace (or refining furnace), and the alloy is added to the holding furnace in a nitrogen atmosphere The refining agent with 0.1% of the melt mass is refined at 740-760°C fo...
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