Al-Fe-Cu aluminum alloy for coal mine cable and aluminum alloy cable
An al-fe-cu, aluminum alloy technology, used in metal/alloy conductors, cable/conductor manufacturing, circuits, etc., can solve the problem that electrical conductivity and mechanical strength cannot meet the requirements of coal mine cables, poor mechanical properties and corrosion resistance and other problems, to achieve the effect of improving age hardening characteristics, improving fatigue resistance and improving various performances
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[0038] In the present invention, the preparation method of the aluminum alloy conductor wire core used in the aluminum alloy cable for coal mine comprises the following steps:
[0039]a. Obtain casting materials by casting molten aluminum alloys: add the aluminum alloy components mentioned in the present invention in proportion, carry out the smelting process at 700-800°C, and then cast at 650-680°C to obtain cast ingot;
[0040] b. Solid solution treating the ingot obtained in step a for 2-6 hours in the range of 460-550°C, and then rapidly quenching in cooling water at 20-100°C;
[0041] c. aging the ingot obtained in step b for 6-10 hours in the range of 150-250°C, then heating up to 300-400°C, and rolling it into an alloy rod;
[0042] d. In the range of 280-300 ° C, the alloy rod rolled in step c is subjected to drawing treatment, so that the cross-sectional area is reduced to 50-60% of the cross-sectional area of the alloy rod in step c, and an aluminum alloy wire is ...
Embodiment 1
[0048] A kind of Al-Fe-Cu series aluminum alloy for coal mine cable, components and the weight percent of each component are as follows (total weight: 1T):
[0049]
[0050] In the above aluminum alloy material, two trace elements Zr and Mn are added, and the alloy has excellent fatigue resistance.
[0051] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:
[0052] a. Obtain casting material by casting molten aluminum alloy: add the above-mentioned aluminum alloy components according to the above-mentioned ratio, carry out the melting process at 730°C, and then carry out casting at 655°C to obtain an ingot;
[0053] b. Solid solution treating the ingot obtained in step a for 4 hours at 480°C, and then rapidly quenching in cooling water at 80°C;
[0054] c. aging the ingot obtained in step b for 7 hours at 200° C., then raising the temperature to 320° C., and rolling it into an alloy...
Embodiment 2
[0064] A kind of Al-Fe-Cu series aluminum alloy for coal mine cable, components and the weight percent of each component are as follows (total weight: 1T):
[0065]
[0066] In the above aluminum alloy material, the added trace elements consist of Zr, Mn and Ag; the rare earth elements RE include Ce, La, Er and Nd, wherein the content of Ce and La accounts for 50% of the total amount of rare earth elements.
[0067] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:
[0068] a. Obtain the casting material by casting the molten aluminum alloy: add the above aluminum alloy components according to the above ratio, carry out the melting process at 756°C, and then cast at 664°C to obtain the ingot;
[0069] b. Solid solution treating the ingot obtained in step a for 4 hours at 530°C, and then rapidly quenching in cooling water at 40°C;
[0070] c. aging the ingot obtained in step b for 8 ...
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