Aluminum alloy, microchannel aluminum flat tube and preparation method thereof, heat exchanger, electrical appliance

An aluminum flat tube and micro-channel technology, applied in the field of aluminum alloy materials, can solve the problems of low alloying degree, corrosion resistance, mechanical properties and extrusion processing performance, etc., and achieve low alloying degree and extrusion performance Good, high yield effect

Active Publication Date: 2016-12-28
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the embodiments of the present invention is to provide an aluminum alloy, which aims to solve the problems of low alloying degree, poor corrosion resistance, mechanical properties and extrusion processability of existing aluminum alloy materials

Method used

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  • Aluminum alloy, microchannel aluminum flat tube and preparation method thereof, heat exchanger, electrical appliance
  • Aluminum alloy, microchannel aluminum flat tube and preparation method thereof, heat exchanger, electrical appliance
  • Aluminum alloy, microchannel aluminum flat tube and preparation method thereof, heat exchanger, electrical appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] An aluminum alloy material, including Al, Fe, Si, Mn, Cu, Zr, Cr and unavoidable traces of other elements; based on the total weight of the aluminum alloy as 100%, the following alloy elements of the aluminum alloy The weight percentage is as follows:

[0075] Fe 0.10%

[0076] Si 0.06%

[0077] Mn 0.21%

[0078] Cu 0.25%

[0079] Zr 0.08%

[0080] Cr 0.08%.

Embodiment 2

[0082] An aluminum alloy material, comprising Al, Fe, Si, Mn, Cu, Cr, Sc; based on the total weight of the aluminum alloy being 100%, the weight percentages of the following alloying elements of the aluminum alloy are as follows:

[0083] Fe 0.12%,

[0084] Si 0.04%,

[0085] Mn 0.12%,

[0086] Cu 0.35%,

[0087] Cr 0.08%,

[0088] Sc 0.08%.

Embodiment 3

[0090] An aluminum alloy material, including Al, Fe, Si, Mn, Cu, B, Cr and unavoidable traces of other elements; based on the total weight of the aluminum alloy as 100%, the following alloy elements of the aluminum alloy The weight percentage is as follows:

[0091] Fe 0.08%,

[0092] Si 0.05%,

[0093] Mn 0.23%,

[0094] Cu 0.20%,

[0095] B 0.08%,

[0096] Cr 0.09%.

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Abstract

The invention discloses an aluminum alloy, a microchannel aluminum flat tube and a preparation method thereof, a heat exchanger and an electrical appliance provided with the heat exchanger. The aluminum alloy includes Al element and inevitable elements, and the inevitable elements include Fe element and Si element. Based on the total weight of the aluminum alloy as 100%, the weight percentage of Fe and Si elements is 0<Fe≤0.2% , 0<Si≤0.15%; the aluminum alloy also includes the following elements by weight percentage: 0.1%≤Mn≤0.5%, 0.15%≤Cu≤0.45%, the total amount of at least two of Zr, B, Cr, RE The content is 0.05% to 0.5%; RE is rare earth element. The aluminum alloy has low alloying degree, good extrusion performance and high corrosion resistance, and the microchannel aluminum flat tube prepared with the aluminum alloy has excellent corrosion resistance without any additional coating. Heat exchangers and electrical appliances containing the micro-channel aluminum flat tubes have strong corrosion resistance and long service life.

Description

technical field [0001] The invention belongs to the field of aluminum alloy materials, and in particular relates to an aluminum alloy, a microchannel aluminum flat tube and a preparation method thereof, a heat exchanger and an electric appliance provided with the heat exchanger. Background technique [0002] The parallel flow heat exchanger is a new type of high-efficiency and compact heat exchanger developed in the process of replacing the working medium of automobile air conditioners. The material is all aluminum. The application of parallel flow heat exchangers in household air conditioners has become the most promising substitute for copper tube heat exchangers. High efficiency, miniaturization, light weight, and low cost are the development directions of parallel flow heat exchanger air conditioners. [0003] As the core component of the parallel flow heat exchanger, the parallel flow flat tube is also continuously optimized and improved with the structural design of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22F1/04C21D8/10F28F21/08F28F1/02
Inventor 黄凤勇
Owner MIDEA GRP CO LTD
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