High-plasticity aluminum alloy for radiator of air-conditioner 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, easy deformation, etc., and achieve the effects of good machinability, good casting performance, and small linear shrinkage

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Air-conditioning radiator aluminum alloy with high plasticity, the weight percentage of its constituent elements is: tin 6-7, magnesium 1.2-1.5, silicon 6-6.5, copper 0.4-0.6, manganese 1.2-1.4, vanadium 0.1-0.15, Ta0 .4-0.6, Zn1.8-2.4, Ni0.4-0.6, W0.14-0.18, Sc0.1-0.14, Tb0.05-0.08, and the balance is aluminum.

[0010] The manufacturing method includes smelting, slag removal, detection and adjustment of alloy composition, refining, and casting, which is characterized in that: after casting, the temperature is lowered to 560-615°C at a rate of 120-135°C / hour, and the temperature is kept for 4-6 hours; then, Then heat up to 510-545°C at a rate of 35-55°C / hour and keep warm for 2-3 hours; then cool down to 160-180°C at a rate of 110-130°C / hour and keep warm for 2-3 hours; then heat at 60-80°C Heat up to 360-380°C at a rate of / hour, keep warm for 2-3 hours; then put it in 180-210°C solvent oil and cool to room temperature;

[0011] The refining agent is formed by mixin...

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Abstract

The invention provides a high-plasticity aluminum alloy for a radiator of an air-conditioner. The aluminum alloy is characterized by comprising the following components: on the basis of weight percentage, 6 to 7 of Sn, 1.2 to 1.5 of Mg, 6 to 6.5 of Si, 0.4 to 0.6 of Cu, 1.2 to 1.4 of Mn, 0.1 to 0.15 of V, 0.4 to 0.6 of Ta, 1.8 to 2.4 of Zn, 0.4 to 0.6 of Ni, 0.14 to 0.18 of W, 0.1 to 0.14 of Sc and 0.05 to 0.08 of Tb, with the balance being Al. The aluminum alloy obtained in the invention has the advantages of good castability, no hot cracking tendency, small linear contraction, high airtightness, high corrosion resistance, weathering performance, high strength and plasticity and good machinability.

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 plasticity is very important for air-conditioning radiators. Contents of the invention [0003] The obj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02C22C1/06F28F21/08
Inventor 骆宣佐
Owner ANHUI TIANXIANG AIR CONDITIONING SCI & TECH CO LTD
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