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Aluminium alloy air conditioner pipe material and preparation method

A technology for aluminum alloys and air-conditioning pipes, applied in the field of metal materials, can solve problems such as low ductility of aluminum alloys, easy cracks or leaks, and unsatisfactory anti-corrosion performance, and achieve high corrosion resistance and high strength.

Inactive Publication Date: 2013-03-27
NINGBO FUSHI AUTOMOBILE COMPONENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An aluminum alloy air conditioning pipe material, its composition includes 0.3% manganese, 1% iron, 0.5% magnesium, 0.5% zinc, 0.1% copper, 0.01% titanium, 0.03% zirconium , 0.001% of yttrium and the balance of aluminum.

Embodiment 2

[0020] An aluminum alloy air conditioning pipe material, its composition includes 0.5% manganese, 1.2% iron, 1% magnesium, 1% zinc, 0.15% copper, 0.03% titanium, 0.05% zirconium , 0.003% of yttrium and the balance of aluminum.

Embodiment 3

[0022] An aluminum alloy air-conditioning pipe material, its composition includes, by weight percentage, 0.4% manganese, 1.1% iron, 0.8% magnesium, 0.8% zinc, 0.13% copper, 0.02% titanium, and 0.04% zirconium , 0.002% of yttrium and the balance of aluminum.

[0023] Its preparation method is:

[0024] The calculated aluminum, zinc, magnesium, manganese-aluminum alloy and iron-aluminum alloy are mixed and smelted into liquid, then titanium-aluminum alloy, zirconium-aluminum alloy and yttrium-aluminum alloy are added in sequence, and then refined, cast and rolled.

[0025] 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 finally roll forming; the temperature drop rate of the constant temperature cooling is kept at 1.5...

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Abstract

The invention relates to an aluminium alloy air conditioner pipe material and a preparation method. The aluminium alloy air conditioner pipe material comprises the following components in percentage by weight: 0.3-0.5% of manganese, 1-1.2% of ferrum, 0.5-1% of magnesium, 0.5-1% of zinc, 0.1-0.15% of copper, 0.01-0.03% of titanium, 0.03-0.05% of zirconium, 0.001-0.003% of yttrium and the balance of aluminium.

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 air-conditioning pipe material and a preparation method. 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 pipes, because the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/06C22C21/10C22C1/03C22F1/04C22F1/047C22F1/053
Inventor 董阿能毛再娜白永洁
Owner NINGBO FUSHI AUTOMOBILE COMPONENTS
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