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High-thermal conduction aluminum alloy for radiator of air-conditioner and manufacturing method thereof

A technology with high heat conduction and manufacturing method, which is applied in the field of aluminum alloy, can solve the problems of low thermal conductivity, poor thermal conductivity, and low cost, and achieve the effects of good corrosion resistance, good heat dissipation performance, and good processing performance

Active 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] High heat conduction air-conditioning radiator aluminum alloy, the weight percentage of its constituent elements is: silicon 1.2-1.4, magnesium 3.2-3.5, copper 1.0-1,2, manganese 5.3-5.5, As0.05-0.08, Hf0.08- 0.12, Bi0.5-0.8, Te0.14-0.18, Cr2.6-3.0, Pr0.02-0.04, and the balance is aluminum.

[0011] The manufacturing method of high heat conduction air-conditioning radiator aluminum alloy, including smelting, slag removal, detection and adjustment of alloy composition, refining with refining agent, casting: after casting, cool down to room temperature at a rate of 130-150°C / hour, and store for 24-36 hours; Then, heat up to 320-350°C at a rate of 90-100°C / hour and keep warm for 3-4 hours; then heat up to 480-510°C at a rate of 110-130°C / hour and keep warm for 2-3 hours; Cool down to 180-210°C at a rate of 60°C / hour, keep warm for 2-3 hours; then heat up to 380-410°C at a rate of 70-90°C / hour, keep warm for 20-3 hours; then cool at a rate of 70-90°C / hour to room temperatu...

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Abstract

The invention provides a high-thermal conduction aluminum alloy for a radiator of an air-conditioner. The aluminum alloy is characterized by comprising the following components by weight: 1.2 to 1.4% of Si, 3.2 to 3.5% of Mg, 1.0 to 1.2% of Cu, 5.3 to 5.5% of Mn, 0.05 to 0.08% of As, 0.08 to 0.12% of Hf, 0.5 to 0.8% of Bi, 0.14 to 0.18% of Te, 2.6 to 3.0% of Cr and 0.02 to 0.04% of Pr, with the balance being Al. The aluminum alloy provided by the invention has a high heat conductivity coefficient of 175 to 205 W / m.K, good heat dissipation performance, high strength, good corrosion resistance, good extensibility, good processability, no defects and high quality and is applicable to the radiator of the air conditioner.

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): C22C21/00C22C1/06C22F1/04F28F21/08
Inventor 骆宣佐
Owner ANHUI TIANXIANG AIR CONDITIONING SCI & TECH CO LTD
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