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Aluminum alloy material and preparation method and application thereof

An aluminum alloy material and aluminum alloy technology, applied in the field of aluminum materials, can solve problems such as inability to meet the requirements of strength and conductivity, achieve the effect of solving the difficulty of having both high conductivity and high strength, and improving tensile strength and yield strength

Active Publication Date: 2022-02-15
HUNAN RARE EARTH METAL MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of industry, traditional aluminum alloys cannot meet the requirements of strength and electrical conductivity at the same time, so it is necessary to develop an aluminum alloy material with higher strength and excellent electrical conductivity.

Method used

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  • Aluminum alloy material and preparation method and application thereof
  • Aluminum alloy material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] (1) Ingredients

[0086] Prepare raw material aluminum ingots, magnesium ingots and aluminum master alloys (Al-20%Si, Al-5%Zr, Al-2%Sc, Al-10%Er, Al-10%Y, Al-10% Yb, Al-1% Fe):

[0087] Mg: 0.75wt%, Si: 0.63wt%, Sc: 0.14wt%, Er: 0.020wt%, Y: 0.16wt%, Yb: 0.030wt%, Zr: 0.050wt%, Fe: 0.050wt%, balance Al and unavoidable impurities; among them, Al-20%Si in the aluminum master alloy means that Si accounts for 20% of the total mass of the Al-Si alloy, and Al-5%Zr means that Zr accounts for 5% of the total mass of the Al-Zr alloy , Al-2%Sc means that Sc accounts for 2% of the total mass of the Al-Sc alloy.

[0088] (2) Melting, refining and casting

[0089] Add aluminum ingots, magnesium ingots and aluminum intermediate alloys at 700°C. After the raw materials are completely melted, the motor stirs the melt at a stirring speed of 100r / min; then heats up to 740°C for refining. The refining agent is hexachloroethane. Refining The amount of the additive added is 0.50wt% of t...

Embodiment 2

[0097] (1) Ingredients

[0098] Prepare raw material aluminum ingots, magnesium ingots and aluminum master alloys (Al-20%Si, Al-5%Zr, Al-2%Sc, Al-10%Er, Al-10%Y, Al-10% Yb, Al-1% Fe):

[0099]Mg: 0.79wt%, Si: 0.67wt%, Sc: 0.13wt%, Er: 0.050wt%, Y: 0.15wt%, Yb: 0.015wt%, Zr: 0.030wt%, Fe: 0.030wt%, balance For Al and unavoidable impurities.

[0100] (2) Melting, refining and casting

[0101] Add aluminum ingots, magnesium ingots and aluminum intermediate alloys at 700°C. After the raw materials are completely melted, the motor stirs the melt at a stirring speed of 180r / min; then heats up to 740°C for refining. The refining agent is hexachloroethane. Refining The amount of additive added is 0.50wt% of the total alloy mass; then the porous degassing device is filled with argon for degassing and slag removal, wherein the rotating speed of the porous degassing device is 400r / min, and the high-purity argon flow rate is 5L / min, and the time is 6 min; then the melt was left to st...

Embodiment 3

[0109] (1) Ingredients

[0110] Prepare raw material aluminum ingots, magnesium ingots and aluminum master alloys (Al-20%Si, Al-5%Zr, Al-2%Sc, Al-10%Er, Al-10%Y, Al-10% Yb, Al-1% Fe):

[0111] Mg: 0.78wt%, Si: 0.56wt%, Sc: 0.10wt%, Er: 0.080wt%, Y: 0.14wt%, Yb: 0.030wt%, Zr: 0.050wt%, Fe: 0.080wt%, balance For Al and unavoidable impurities.

[0112] (2) Melting, refining and casting

[0113] Add aluminum ingots, magnesium ingots and aluminum intermediate alloys at 700°C. After the raw materials are completely melted, the motor stirs the melt at a stirring speed of 180r / min; then heats up to 740°C for refining. The refining agent is hexachloroethane. Refining The amount of additive added is 0.50wt% of the total alloy mass; then the porous degassing device is filled with argon to perform degassing and slag removal. min, and the time is 4 min; the melt is then left to stand at 740°C for 50 minutes, and then cast into a water-cooled mold to obtain an alloy ingot.

[0114] (3)...

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Abstract

The invention relates to an aluminum alloy material which comprises the following components in percentage by mass: 0.45 wt% to 0.85 wt% of Mg, 0.30 wt% to 0.70 wt% of Si, 0.010 wt% to 0.20 wt% of Sc, 0.010 wt% to 0.15 wt% of Er, 0.010 wt% to 0.20 wt% of Y, 0.010 wt% to 0.20 wt% of Yb, 0.010 wt% to 0.20 wt% of Zr, 0.010 wt% to 0.080 wt% of Fe and the balance of Al. The components of the aluminum alloy material have a synergistic effect, so that the tensile strength and the yield strength of the aluminum alloy material are effectively improved on the basis of keeping relatively good conductivity, and the problem that high conductivity and high strength of a traditional aluminum alloy are difficult to integrate is solved.

Description

technical field [0001] The invention relates to the technical field of aluminum materials, in particular to an aluminum alloy material and its preparation method and application. Background technique [0002] Aluminum alloy has the characteristics of low price, light weight, high strength, good processing performance, excellent electrical conductivity and corrosion resistance, and is widely used in wire and cable, rail profiles, electrodes and other fields. However, with the development of industry, traditional aluminum alloys cannot meet the requirements of strength and electrical conductivity at the same time, so it is necessary to develop an aluminum alloy material with higher strength and excellent electrical conductivity. Contents of the invention [0003] Based on this, the present invention provides an aluminum alloy material and its preparation method and application, which have high tensile strength, yield strength and high electrical conductivity. [0004] The t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C21/02C22C1/02C22F1/043C22F1/047B22D7/00C21D9/00
CPCC22C21/08C22C21/02C22C1/026C22F1/047C22F1/043B22D7/005C21D9/0075
Inventor 罗天纵姚茂海吕晶李杰王志坚熊爱虎童璨瑜
Owner HUNAN RARE EARTH METAL MATERIAL RES INST