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Aluminum alloy with good processability for radiator and manufacturing method thereof

A manufacturing method and radiator technology, applied in the field of aluminum alloys, can solve the problems of poor thermal conductivity, difficult processing, low thermal conductivity, etc., and achieve the effects of good yield strength and elongation, difficult sintering, and excellent thermal conductivity.

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

[0009] The heat sink aluminum alloy with good processability, the weight percentage of its constituent elements is: silicon 5.5-6.0, magnesium 1.2-1.5, copper 0.3-0.4, iron 0.4-0.6, chromium 2.3-2.4, Nb1-1.2, V3. 5-3.6, Zr0.6-0.9, Be0.1-0.3, La0.06-0.08, Ho0.16-0.19, Li0.1-0.15, Ba0.06-0.08, and the balance is aluminum.

[0010] The manufacturing method of radiator aluminum alloy with good processability includes smelting, slag removal, detection and adjustment of alloy composition, adding refining agent for refining, casting, cooling down to 110-135°C at a rate of 80-95°C / hour after casting, and holding for 40 -60 hours; then, heat up to 520-545°C at a rate of 135-155°C / hour, and keep warm for 4-5 hours; then cool down to 360-380°C at a rate of 70-90°C / hour, and keep warm for 2-3 hours; Then cool down to 160-180°C at a rate of 40-50°C / hour, keep warm for 2-3 hours; then put it in ice water at 0°C for 3-4 hours;

[0011] The refining agent is formed by mixing and briquetting ...

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PUM

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Abstract

The invention provides an aluminum alloy with good processability for a radiator. The aluminum alloy is characterized by comprising the following components: on the basis of weight percentage, 5.5 to 6.0 of Si, 1.2 to 1.5 of Mg, 0.3 to 0.4 of Cu, 0.4 to 0.6 of Fe, 2.3 to 2.4 of Cr, 1 to 1.2 of Nb, 3.5 to 3.6 of V, 0.6 to 0.9 of Zr, 0.1 to 0.3 of Be, 0.06 to 0.08 of La, 0.16 to 0.19 of Ho, 0.1 to 0.15 of Li and 0.06 to 0.08 of Ba, with the balance being Al. The invention further discloses a manufacturing method for the aluminum alloy. The aluminum alloy provided by the invention has the advantages of good yield strength and elongation percentage, excellent heat conductivity and uneasy sintering.

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, high strength and good processability is very important for air-conditioning radiators. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/02C22C1/06
Inventor 骆宣佐
Owner ANHUI TIANXIANG AIR CONDITIONING SCI & TECH CO LTD
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