A kind of aluminum alloy with high conductivity and corrosion resistance and preparation method thereof
An aluminum alloy and corrosion-resistant technology, applied in the field of aluminum alloys, can solve the problems such as the lack of corrosion resistance, increase the cost of material production control, and poor product quality uniformity, and achieve improved strength, dense and uniform microstructure, and good strength. Effect
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Embodiment 1
[0035] A highly conductive and corrosion-resistant aluminum alloy consisting of the following elements by weight percentage:
[0036] Si:0.4%;Mg:0.8%;B:0.02%;Ti:0.015%;Sr:0.0075%;Pr:0.003%;Er:0.06%;Fe:0.3%;Mn:0.005%;Cr:0.05%; Zr: 0.01%; Cu: 0.035%; Zn: 0.05%; the remainder is aluminum and unavoidable impurities.
[0037]Wherein, the unavoidable impurities are not more than 0.1wt%, and each element in the unavoidable impurities is not more than 0.03wt%.
[0038] A method for preparing a highly conductive and corrosion-resistant aluminum alloy as described above comprises the following steps:
[0039] (1) Heat the aluminum ingot to 700°C to form aluminum liquid, and add Al-Si master alloy, Al-B master alloy, Al-Ti master alloy, Al-Sr master alloy, Al- Pr master alloy, Al-Er master alloy, Al-Fe master alloy, Al-Mn master alloy, Al-Cr master alloy, Al-Zr master alloy, Al-Cu master alloy, Al-Zn master alloy and Mg are mixed, Prepare alloy liquid;
[0040] (2) heating the alloy ...
Embodiment 2
[0050] A highly conductive and corrosion-resistant aluminum alloy consisting of the following elements by weight percentage:
[0051] Si: 0.3%; Mg: 0.6%; B:0.01%; Ti: 0.01%; Sr: 0.005%; Pr: 0.001%; Er: 0.02%; Fe: 0.2%; Mn: 0.01%; Cr: 0.01%; Zr: 0.005%; Cu: 0.02%; Zn: 0.03%; the remainder is aluminum and unavoidable impurities.
[0052] Wherein, the unavoidable impurities are not more than 0.1wt%, and each element in the unavoidable impurities is not more than 0.03wt%.
[0053] A method for preparing a highly conductive and corrosion-resistant aluminum alloy as described above comprises the following steps:
[0054] (1) Heat the aluminum ingot to 700°C to form aluminum liquid, and add Al-Si master alloy, Al-B master alloy, Al-Ti master alloy, Al-Sr master alloy, Al- Pr master alloy, Al-Er master alloy, Al-Fe master alloy, Al-Mn master alloy, Al-Cr master alloy, Al-Zr master alloy, Al-Cu master alloy, Al-Zn master alloy and Mg are mixed, Prepare alloy liquid;
[0055] (2) ...
Embodiment 3
[0065] A highly conductive and corrosion-resistant aluminum alloy consisting of the following elements by weight percentage:
[0066] Si: 0.6%; Mg: 0.9%; B: 0.04%; Ti: 0.02%; Sr: 0.01%; Pr: 0.005%; Er: 0.1%; Fe: 0.4%; Mn: 0.02%; Cr: 0.02%; Zr: 0.015%; Cu: 0.05%; Zn: 0.07%; the remainder is aluminum and unavoidable impurities.
[0067] Wherein, the unavoidable impurities are not more than 0.1wt%, and each element in the unavoidable impurities is not more than 0.03wt%.
[0068] A method for preparing a highly conductive and corrosion-resistant aluminum alloy as described above comprises the following steps:
[0069] (1) Heat the aluminum ingot to 680°C to form molten aluminum, and add Al-Si master alloy, Al-B master alloy, Al-Ti master alloy, Al-Sr master alloy, Al- Pr master alloy, Al-Er master alloy, Al-Fe master alloy, Al-Mn master alloy, Al-Cr master alloy, Al-Zr master alloy, Al-Cu master alloy, Al-Zn master alloy and Mg are mixed, Prepare alloy liquid;
[0070] (2) hea...
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