Al-Fe-Pt-RE aluminum alloy, and preparation method and power cable thereof
An al-fe-pt-re, power cable technology, applied in the field of alloys, can solve problems such as poor comprehensive performance, poor fatigue resistance, and quality problems of aluminum alloy power cables
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[0073] The present invention also provides a method for preparing an Al-Fe-Pt-RE aluminum alloy, comprising the following steps:
[0074] a) Cast the raw materials of the following composition to obtain an aluminum alloy ingot: 0.01~1.6wt% Fe, 0.001~0.3wt% Cu, 0.001~0.3wt% Mg, 0.001~0.3wt% Co, 0.001~0.2 wt% Be, 0.001~0.3wt% Ca, 0.001~0.2wt% Zn, 0.001~0.3wt% Sr, 0.001~0.3wt% Zr, 0.002~0.25wt% Li, 0.001~0.2wt% Na, 0.002~0.25wt% K, 0.001~0.2wt% Ti, 0.001~0.15wt% V, 0.001~0.12wt% Cr, 0.001~0.12wt% Mn, 0.001~0.15wt% Ni , 0.001~0.2wt% of Ga, 0.003~0.2wt% of Ge, 0.001~0.2wt% of Rb, 0.001~0.15wt% of Nb, 0.001~0.2wt% of Mo, 0.001~0.25wt% of Tc, 0.001 ~0.15wt% Ru, 0.002~0.1wt% Rh, 0.001~0.12wt% Pd, 0.001~0.1wt% Ag, 0.002~0.13wt% Cd, 0.003~0.18wt% In, 0.001~0.08 wt% Sn, 0.001~0.3wt% Sb, 0.001~0.2wt% Cs, 0.001~0.08wt% Ba, 0.001~0.22wt% Hf, 0.002~0.16wt% Ta, 0.001~0.08wt% W, 0.002~0.18wt% Re, 0.002~0.08wt% Os, 0.001~0.15wt% Ir, 0.002~0.08wt% Pt, 0.01~3.0wt% RE, greater than zero and les...
Embodiment 1
[0087] (1) Put the aluminum ingot into the furnace, heat it to melt and keep it warm at 720°C. The melting process is completed in a sealed environment; first add Al-Fe, Al-Cu, Al-Mg, Al-Co, Al-Be , Al-Ca, Al-Zn, Zn-Sr, Al-Zr, Al-Si, Al-B, Al-Li, Al-Na, Al-K, Al-Ti, Al-V, Al-Cr, Al -Mn, Al-Ni, Al-Ga, Al-Ge, Al-Rb, Al-Nb, Al-Mo, Al-Tc, Al-Ru, Al-Rh, Al-Pd, Al-Ag, Al-Cd , Al-In, Al-Sn, Al-Sb, Al-Cs, Al-Ba, Al-Hf, Al-Ta, Al-W, Al-Re, Al-Os, Al-Ir and Al-Pt master alloys , stir evenly, then add rare earth RE and stir for 20 minutes until it is fully stirred evenly, and then keep it for 30 minutes; Melt refining is operated in a sealed environment; after refining, the slag is removed, the temperature is adjusted to 650°C, the alloy liquid is poured out of the furnace, and after degassing and slag removal, it enters the casting machine for casting to obtain aluminum alloy ingots. The ingot composition is listed in Table 1;
[0088] (2) Heat up the aluminum alloy ingot obtained in...
Embodiment 2
[0093] (1) Put the aluminum ingot into the furnace, heat it to melt and keep it warm at 740°C. The melting process is completed in a sealed environment; first add Fe, Cu, Mg, Co, Be, Ca, Zn, Sr, Zr, Si , B, Li, Na, K, Ti, V, Cr, Mn, Ni, Ga, Ge, Rb, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Cs, Ba , Hf, Ta, W, Re, Os, Ir and Pt, stir evenly, then add rare earth RE and stir for 20 minutes until fully stirred evenly, and keep it for 30 minutes; then refine the above alloy melt in the furnace; in the alloy melt Add refining agent, stir evenly, and then stand for 30 minutes to keep warm. Melt refining is operated in a sealed environment; after refining, slag is removed, let stand, and the temperature is adjusted to 720°C. The alloy liquid is poured out of the furnace, and then degassed and slag-removed. After that, enter the casting machine for casting to obtain an aluminum alloy ingot, and the ingot composition is listed in Table 1;
[0094] (2) Heat up the aluminum alloy ingot...
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Abstract
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