A kind of ultra-high thermal conductivity, high plasticity, medium-strength aluminum alloy and preparation method thereof
An aluminum alloy and high plasticity technology, applied in the field of aluminum alloy, can solve the problems of low thermal conductivity and reduce the thermal conductivity of the alloy, and achieve the effect of enhancing the casting and flow properties of the alloy, improving the strength and toughness of the alloy, and matching the strength and plasticity of the alloy.
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Embodiment 1
[0038] An ultra-high thermal conductivity and high plasticity medium-strength aluminum alloy of this embodiment consists of the following specific components and mass percentages: Cu 1.0%, Fe 1.5%, Mg 0.05wt.%, Si 0.1wt.%, Ni 0.01%, Ti 0.002 %, Zn 0.01%, Mn 0.01%, Fe / Cu mass ratio is 1.5, the Si+Ni+Mn+Zn mass fraction is 0.13%, the rest is Al and unavoidable impurities, the total amount of impurity elements is 0.14%;
[0039] The present invention provides a method for preparing the above-mentioned ultra-high thermal conductivity and high plasticity medium-strength aluminum alloy, comprising the following steps:
[0040] (1) Melting: Heat the melting furnace to 720°C, put the aluminum ingot into the melting furnace to melt, after the aluminum ingot is completely melted, add Cu and Fe pure metals or their intermediate alloys into the aluminum melt according to the composition ratio, After it dissolves, add instant silicon, Al-Ni master alloy, Al-Ti master alloy, Al-Mn master al...
Embodiment 2
[0045] An ultra-high thermal conductivity and high plasticity medium-strength aluminum alloy of this embodiment consists of the following specific components and mass percentages: Cu 1.5%, Fe 2.0%, Mg 0.1wt.%, Si 0.15wt.%, Ti 0.002%, Zn 0.03 %, Mn 0.02%, Fe / Cu mass ratio is 1.3, the Si+Ni+Mn+Zn mass fraction is 0.2%, the rest is Al and unavoidable impurities, the total amount of impurity elements is 0.16%;
[0046]The present invention provides a method for preparing the above-mentioned ultra-high thermal conductivity and high plasticity medium-strength aluminum alloy, comprising the following steps:
[0047] (1) Melting: Heat the melting furnace to 720°C, put the aluminum ingot into the melting furnace to melt, after the aluminum ingot is completely melted, add Cu and Fe pure metals or their intermediate alloys into the aluminum melt according to the composition ratio, After it dissolves, add instant silicon, Al-Ti master alloy, Al-Mn master alloy, pure Zn and pure Mg accordi...
Embodiment 3
[0052] An ultra-high thermal conductivity and high plasticity medium-strength aluminum alloy of this embodiment consists of the following specific components and mass percentages: Cu 0.6%, Fe 2.4%, Mg 0.05wt.%, Si 0.2wt.%, Ni 0.02%, Zn 0.02 %, Mn 0.02%, Fe / Cu mass ratio is 4, the Si+Ni+Mn+Zn mass fraction is 0.26%, the rest is Al and unavoidable impurities, the total amount of impurity elements is 0.16%;
[0053] The present invention provides a method for preparing the above-mentioned ultra-high thermal conductivity and high plasticity medium-strength aluminum alloy, comprising the following steps:
[0054] (1) Melting: Heat the melting furnace to 740°C, put the aluminum ingot into the melting furnace to melt, after the aluminum ingot is completely melted, add Cu and Fe pure metals or their intermediate alloys into the aluminum melt according to the composition ratio, After it dissolves, add instant silicon, Al-Ni master alloy, Al-Mn master alloy, pure Zn and pure Mg accordin...
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