Al-Fe-C-RE aluminium alloy, preparation method thereof and power cable
An al-fe-c-re, power cable technology, applied in the field of alloys, can solve problems such as poor fatigue resistance, quality problems, and affecting the service life of aluminum alloy materials
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[0078] The present invention also provides a method for preparing an Al-Fe-C-RE aluminum alloy, comprising the following steps:
[0079] 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, 0.001~0.05wt% Au, 0.002~0.15wt% Tl , 0.00...
Embodiment 1
[0092] (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 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, Pt, Au, Tl, Pb, Bi and C, after stirring evenly, add rare earth RE and stir for 20 minutes until fully stirred evenly, and keep it for 30 minutes; Carry out refining in the furnace; add refining agent to the alloy melt, stir evenly, and then keep it for 30 minutes, and operate the melt refining in a sealed environment; After being out of the furnace, after degassing and slag removal, it enters the casting machine for casting to obtain aluminum alloy ingots. The composition of the ingots is listed in Table 1;
[0093] (2) Heat up the aluminum alloy ingot obtained in step (1) at a rate of 5°C / min to 450°C, hold it for 6 hours, and then roll it into a rod;
...
Embodiment 2
[0098](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, Pt, Au, Tl, Pb, Bi and C, after stirring evenly, add rare earth RE and stir for 20 minutes until fully stirred evenly, and keep it for 30 minutes; Carry out refining in the furnace; add refining agent to the alloy melt, stir evenly, and then let it stand for 30 minutes, and operate the melt refining in a sealed environment; After being out of the furnace, after degassing and slag removal, it enters the casting machine for casting to obtain aluminum alloy ingots. The composition of the ingots is listed in Table 1;
[0099] (2) Heat up the aluminum alloy ingot obtained in step (1) at a rate of 3°C / min to 550°C, hold it for 16 hours and then roll it into a rod;...
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