Aluminum alloy for radiator fin of air conditioner and manufacturing method thereof

A manufacturing method and heat sink technology, applied in the field of aluminum alloys, can solve the problems of easy deformation, poor fluidity and castability, low thermal conductivity, etc., and achieve the effect of high strength characteristics

Inactive Publication Date: 2013-10-16
ANHUI TIANXIANG AIR CONDITIONING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of aluminum alloy castings is low, but the thermal conductivity of generally cast aluminum alloy structural parts is not high, usually around 90 W / m·K, so that the thermal conductivity is poor. Currently, pure aluminum (purity > 99% or more) is commonly used ), although the thermal conductivity is high (> 220 W / m K), its fluidity and castability are not good, and it is too soft, difficult to process, and easy to deform

Method used

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Embodiment Construction

[0010] Aluminum alloy for air-conditioning radiator fins, the weight percentage of its constituent elements is: Si5.3-5.6, Fe1.2-1.4, Cu0.8-1.0, Mn2.1-2.3, Mg1.4-1.6, Cr4 .5-4.8, Zn0.2-0.4, Nb0.06-0.08, V0.5-0.6, Zr0.16-0.19, Li0.2-0.4, and the balance is aluminum.

[0011] A method for manufacturing aluminum alloys for air-conditioning radiator fins, including smelting, slag removal, alloy composition detection and adjustment, refining with refining agent, casting, including smelting, slag removal, alloy composition detection and adjustment, refining, and casting, characterized in that : After casting, cool down to 480-540°C at a rate of 110-120°C / hour and store for 1-2 hours; then cool down to 260-270°C at a rate of 130-150°C / hour and keep warm for 2-3 hours; Heat at 50-70°C / hour to 480-520°C and hold for 2-3 hours; then cool at 40-60°C / hour to 120-140°C and hold for 14-16 hours; then heat at 120-140°C / hour Heat up to 280-310°C at a rate of 2-3 hours; then cool to room temp...

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PUM

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Abstract

The invention provides an aluminum alloy for a radiator fin of an air conditioner. The aluminum alloy is characterized by comprising the following components: on the basis of weight percentage, 5.3 to 5.6 of Si, 1.2 to 1.4 of Fe, 0.8 to 1.0 of Cu, 2.1 to 2.3 of Mn, 1.4 to 1.6 of Mg, 4.5 to 4.8 of Cr, 0.2 to 0.4 of Zn, 0.06 to 0.08 of Nb, 0.5 to 0.6 of V, 0.16 to 0.19 of Zr and 0.2 to 0.4 of Li, with the balance being Al. The aluminum alloy provided by the invention has high strength characteristics, solderability, excellent corrosion resistance and good machinability and is especially applicable as the radiator fin.

Description

technical field [0001] The invention belongs to an aluminum alloy, in particular to an aluminum alloy material for an air-conditioning radiator. Background technique [0002] Most of the heat dissipation structural parts of air conditioners are made of aluminum alloy, including castings, extruded parts, stamping parts and forging parts. The cost of aluminum alloy castings is low, but the thermal conductivity of generally cast aluminum alloy structural parts is not high, usually around 90 W / m·K, so that the thermal conductivity is poor. Currently, pure aluminum (purity > 99% or more) is commonly used ), although the thermal conductivity is high (> 220 W / m·K), its fluidity and castability are not good, and it is too soft, difficult to process, and easy to deform. At present, the study of casting aluminum alloys with high thermal conductivity and high strength is very important for air-conditioning radiators. Contents of the invention [0003] The object of the presen...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/06C22F1/043F28F21/08
Inventor 骆宣佐
Owner ANHUI TIANXIANG AIR CONDITIONING SCI & TECH CO LTD
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