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Aluminum alloy for air conditioner tube and method for manufacturing same

A manufacturing method and an aluminum alloy technology are applied to the aluminum alloy for air-conditioning pipes and the manufacturing field thereof, which can solve the problems of high price of copper air-conditioning pipes and poor performance of iron air-conditioning pipes, and achieve high tensile strength and excellent corrosion resistance. , the effect of high elongation

Active Publication Date: 2008-08-27
ZHEJIANG KANGSHENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention mainly aims at the problems of poor performance of iron air-conditioning pipes and high price of copper air-conditioning pipes in the prior art, and provides an aluminum alloy for air-conditioning pipes with excellent corrosion resistance, high tensile strength and high elongation and its manufacturing method

Method used

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  • Aluminum alloy for air conditioner tube and method for manufacturing same
  • Aluminum alloy for air conditioner tube and method for manufacturing same

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The raw materials are: primary aluminum ingot, pure magnesium ingot, pure zinc ingot, Al-10%Mn, Al-20%Fe, Al-40%Cu, Al-4%Zr, Al-10%Sr, Al-10%Ti , Al-5%Ti-1%B, Al-RE master alloy, the RE element is La-80%Ce mixed rare earth elements.

[0019] Select several kinds of raw material alloys, according to the ratio of each element in Table 1, and make aluminum alloys according to the general methods of aluminum alloy manufacturing such as smelting, refining, casting, advancing rolling, and finishing rolling.

[0020] The melting temperature is 720°C-730°C, the refining temperature is 700°C-710°C, the casting temperature is 690°C-700°C, the rolling temperature is 480°C-490°C, and the final rolling temperature is 280°C-290°C.

Embodiment 2

[0022] The raw materials are: primary aluminum ingot, pure magnesium ingot, pure zinc ingot, Al-10%Mn, Al-20%Fe, Al-40%Cu, Al-4%Zr, Al-10%Sr, Al-10%Ti , Al-5%Ti-1%B, Al-RE master alloy, the RE element is La-80%Ce mixed rare earth elements.

[0023] Select several kinds of raw material alloys, according to the ratio of each element in Table 1, and make aluminum alloys according to the general methods of aluminum alloy manufacturing such as smelting, refining, casting, advancing rolling, and finishing rolling.

[0024] The melting temperature is 720°C, the refining temperature is 700°C, the casting temperature is 690°C, the rolling temperature is 480°C, and the final rolling temperature is 280°C.

Embodiment 3

[0026] The raw materials are: primary aluminum ingot, pure magnesium ingot, pure zinc ingot, Al-10%Mn, Al-20%Fe, Al-40%Cu, Al-4%Zr, Al-10%Sr, Al-10%Ti , Al-5%Ti-1%B, Al-RE master alloy, the RE element is La-80%Ce mixed rare earth elements.

[0027] Select several kinds of raw material alloys, according to the ratio of each element in Table 1, and make aluminum alloys according to the general methods of aluminum alloy manufacturing such as smelting, refining, casting, advancing rolling, and finishing rolling.

[0028] The melting temperature is 750°C-760°C, the refining temperature is 720°C-730°C, the casting temperature is 710°C-720°C, the rolling temperature is 510°C-520°C, and the final rolling temperature is 310°C-320°C.

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Abstract

The invention relates to an aluminum alloy and the manufacturing method, which particularly relates to aluminum alloy for air-conditioning ducts and the manufacturing method. The invention mainly aims at the problem of the existing technique which has the disadvantages of bad property of iron air-conditioning duct and over-high cost of copper air-conditioning ducts and the like, which provides an aluminum alloy for air-conditioning ducts which has the advantages of excellent corrosion resisting property, high tensile strength and high percentage of elongation and the manufacturing method. The proposition of components of the invention comprises 0.7wt%-0.9wt%Mn,0.1wt%-0.4wt%Si,0.2wt%-0.7wt%Fe, 0.05wt%-0.6wt%Mg, Zn<=0.2wt%, 0.05wt%-0.25wt%Cu, Ti<=0.2wt%, 0.01wt%-0.2wt%Sc, 0.01wt%-0.1wt%Zr, 0.05wt%-0.2wt%RE, and others are Al.

Description

technical field [0001] The invention relates to an aluminum alloy and a manufacturing method thereof, in particular to an aluminum alloy for an air-conditioning pipe and a manufacturing method thereof. Background technique [0002] At present, most of the materials of air-conditioning heat exchange pipes are iron alloys or copper alloys, but the performance of iron pipes is not good at present, while the price of copper pipes is relatively high. [0003] For example, a Chinese patent No. is the copper alloy for air-conditioning pipes of CN200510060388.5, which contains copper (Cu), phosphorus (P), and mixed rare earth metals ( Re), the composition of each component by weight percentage is: copper (Cu) 99.9%, phosphorus (P) 0.001 ~ 0.099%, mainly mixed with light rare earth elements such as lanthanum (La) and cerium (Ce) Rare earth metal (Re) 0.001-0.099%. Phosphorus is preferably 0.015-0.040% and 0.004-0.012%. [0004] Another example is a Chinese patent No. CN20071007494...

Claims

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Application Information

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IPC IPC(8): C22C21/00
Inventor 陈汉康韩建文朱建娟袁金慧王伊娜
Owner ZHEJIANG KANGSHENG CO LTD
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