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High erosion-resistant radiator fin aluminum alloy and manufacture method thereof

A manufacturing method and radiator technology, applied in the field of aluminum alloy, can solve the problems of being too soft, easy to deform, difficult to process, etc.

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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Experimental program
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Embodiment Construction

[0009] Good corrosion resistance radiator fin aluminum alloy, the weight percentage of its constituent elements is: copper 4.5-5.0, barium 0.1-0.15, manganese 4.5-4.8, titanium 0.6-0.9, boron 0.12-0.15, Mo0.2- 0.3, V0.9-1.2, Bi0.04-0.08, Sb0.20-0.25, Zr0.06-0.09, Li1.2-1.4, Pd0.1-0.15, and the balance is aluminum.

[0010] The manufacturing method of radiator fin aluminum alloy with good corrosion resistance includes smelting, slag removal, alloy composition detection and adjustment, refining, casting, cooling down to 510-535°C at a rate of 210-230°C / hour after casting, and heat preservation for 4- 6 hours; then, heat up to 560-585°C at a rate of 35-55°C / hour and keep warm for 1-2 hours; then cool down to 320-340°C at a rate of 170-190°C / hour and keep warm for 2-3 hours; Cool down to 60-80°C at a rate of 40-70°C / hour, keep warm for 2-3 hours; then put it in liquid nitrogen for 2-3 hours;

[0011] The refining agent is formed by mixing and briquetting the following raw materia...

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Abstract

Provided are a high erosion-resistant radiator fin aluminum alloy and a manufacture method thereof. The aluminum alloy is characterized in that the aluminum alloy is composed of the following components by weight percentage: 4.5 to 5.0% of copper, 0.1 to 0.15% of barium, 4.5 to 4.8% of manganese, 0.6 to 0.9% of titanium, 0.12 to 0.15% of boron, 0.2 to 0.3% of Mo, 0.9 to 1.2% of V, 0.04 to 0.08% of Bi, 0.20 to 0.25% of Sb, 0.06 to 0.09% of Zr, 1.2 to 1.4% of Li, 0.1 to 0.15% of Pd, and the balance being aluminum. The tensile strength of the aluminum alloy cast according to the method reaches 405 MPA when the elongation rate is 12.5%. The corrosion behavior of the alloy materials may be tested by adopting an SWAAT experiment and the test shows substantial improvements of the erosion-resistance of the aluminum alloy.

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): C22C21/12C22C1/02C22C1/06F28F21/08
Inventor 骆宣佐
Owner ANHUI TIANXIANG AIR CONDITIONING SCI & TECH CO LTD
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