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

A technology for automotive air conditioners and manufacturing methods, applied in the field of aluminum alloys, can solve problems such as poor fluidity and castability, easy deformation, poor thermal conductivity, etc., to improve quality and processing performance, excellent mechanical processing performance, and increase crystal grains the refinement effect

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

[0009] Aluminum alloy fin material for automobile air-conditioning radiator, the weight percentage of its constituent elements is: silicon 8-8.6, copper 1.2-1.5, magnesium 0.8-1.0, manganese 3.2-3.5, iron 1.2-1.5, Be0.1-0.3 , La0.4-0.6, Ho0.06-0.09, Sc0.15-0.20, Ta0.32-0.36, V0.08-0.12, Ta0.04-0.06, and the balance is aluminum.

[0010] The manufacturing method includes smelting, slag removal, detection and adjustment of alloy composition, adding refining agent for refining, and casting. After casting, the temperature is lowered to 520-545°C at a rate of 110-130°C / hour, and the temperature is kept for 4-6 hours; Cool down to 260-285°C at a rate of -115°C / hour and keep warm for 7-8 hours; then raise the temperature to 440-480°C at a rate of 70-90°C / hour and keep warm for 2-3 hours; then heat at a rate of 80-100°C / hour Cool down to 160-180°C, keep warm for 2-3 hours; then cool to room temperature at a rate of 50-60°C / hour; then put it in liquid nitrogen for 2-3 hours;

[0011] ...

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PUM

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Abstract

The invention provides an aluminum alloy fin material for a radiator of an automobile air conditioner. The aluminum alloy fin material comprises, on the basis of weight percentage, 8 to 8.6 of Si, 1.2 to 1.5 of Cu, 0.8 to 1.0 of Mg, 3.2 to 3.5 of Mn, 1.2 to 1.5 of Fe, 0.1 to 0.3 of Be, 0.4 to 0.6 of La, 0.06 to 0.09 of Ho, 0.15 to 0.20 of Sc, 0.32 to 0.36 of Ta, 0.08 to 0.12 of V and 0.04 to 0.06 of Ta, with the balance being Al. According to the invention, a formula for an aluminum alloy is further optimized, which is beneficial for improving comprehensive properties of the aluminum alloy material; a step of heat treatment improves uniformity of the internal structure of the aluminum alloy material and refinement of grains, so quality and processability of an aluminum alloy section are substantially improved. The aluminum alloy fin material provided by the invention has excellent machining properties as a radiator material.

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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Patent Type & Authority Applications(China)
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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