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Aluminum alloy material for air conditioner pipe and preparation method
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An aluminum alloy material and aluminum alloy technology, applied in the field of metal materials, can solve the problems of low ductility of aluminum alloy, easy cracking or leakage, and less than required corrosion resistance performance, and achieve high corrosion resistance performance
Inactive Publication Date: 2013-04-03
NINGBO FUSHI AUTOMOBILE COMPONENTS
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Problems solved by technology
However, when the existing aluminum alloys are finally processed into thin-walled pipes, because the ductility of aluminum alloys is lower than that of copper, cracks or leakage are prone to occur, and the corrosion resistance of existing aluminum alloy materials is not satisfactory.
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Embodiment 1
[0019] Aluminum alloy materials for air-conditioning pipes, its composition includes, by weight percentage, 0.3% manganese, 1% iron, 0.5% magnesium, 0.5% zinc, 0.1% copper, 0.01% titanium, 0.03% zirconium, 0.2 % of nickel, 0.01% of cobalt, 0.001% of rare earths containing yttrium and dysprosium and the balance of aluminum.
Embodiment 2
[0021] Aluminum alloy materials for air-conditioning pipes, its composition includes, by weight percentage, 0.5% manganese, 1.2% iron, 1% magnesium, 1% zinc, 0.15% copper, 0.03% titanium, 0.05% zirconium, 0.5% % of nickel, 0.03% of cobalt, 0.003% of rare earths containing yttrium and dysprosium and the balance of aluminum.
Embodiment 3
[0023] Aluminum alloy materials for air-conditioning pipes, its composition includes, by weight percentage, 0.4% manganese, 1.1% iron, 0.8% magnesium, 0.8% zinc, 0.13% copper, 0.02% titanium, 0.04% zirconium, 0.3% % of nickel, 0.02% of cobalt, 0.002% of rare earths containing yttrium and dysprosium and the balance of aluminum.
[0024] Its preparation method is:
[0025] The calculated aluminum, zinc, magnesium, cobalt-nickel-aluminum alloy, manganese-aluminum alloy and iron-aluminum alloy are mixed and smelted into liquid, then titanium-aluminum alloy, zirconium-aluminum alloy, rare earth aluminum alloy are added in turn, and then refined, cast and rolled .
[0026] The smelting temperature is 750±20°C; the refining temperature is 700-730°C, and the refining time is 1-2 hours; then the temperature is maintained at 700-720°C for casting, and the constant temperature is cooled to 500±20°C for rolling. Maintain constant temperature cooling during the manufacturing process, and...
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Abstract
The invention relates to an aluminum alloy material for an air conditioner pipe and a preparation method. The aluminum alloy material consists of the following components in percentage by weight: 0.3-0.5% of manganese, 1-1.2% of iron, 0.5-1% of magnesium, 0.5-1% of zinc, 0.1-0.15% of copper, 0.2-0.5% of nickel, 0.01-0.03% of titanium, 0.03-0.05% of zirconium, 0.01-0.03% of cobalt, 0.001-0.003% of rare earth containing yttrium and dysprosium and the balance of aluminum.
Description
technical field [0001] The invention belongs to the field of metal materials, and relates to an aluminum alloy material, in particular to an aluminum alloy material for an air-conditioning pipe and a preparation method thereof. Background technique [0002] At present, the material of heat exchange tubes for air conditioners is mainly iron alloy or copper alloy, but because the thermal conductivity of iron alloy tubes is not high, the thermal conductivity of copper tubes is high, but the cost of copper is also high, and the proportion of copper is large, increasing The overall weight of the air conditioner. [0003] Although the thermal conductivity of aluminum is lower than that of copper, it is much higher than that of iron, and the specific gravity of aluminum is low. Using aluminum alloy to replace copper or iron to manufacture air-conditioning heat exchange tubes has many advantages. However, when the existing aluminum alloys are finally processed into thin-walled pipe...
Claims
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Application Information
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