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A kind of high-strength aluminum alloy and its manufacturing process

A production process and technology of aluminum alloy, applied in the field of aluminum alloy, can solve the problems of unsatisfactory processing and forming, surface quality and heat treatment, use restrictions of high-strength aluminum alloy materials, etc., and achieve good anti-aging stability effect

Active Publication Date: 2017-10-03
贵州航天风华精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the number and scope of high-strength aluminum alloys used in the industrial field are increasing, but there are many problems in the alloy aluminum in the prior art, which cannot meet the requirements of processing and forming, surface quality and heat treatment, which makes the high-strength aluminum alloy materials Use in industrial fields is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-strength aluminum alloy provided by the present invention, the aluminum alloy material is composed of the following components in weight percentage: Zn: 1.5%, Mg: 0.8%, Mn: 0.01%, Zr: 1.0%, W: 0.1% , V: 0.1%, B: 0.01%, Ti: 2%, Si: 0.1%, Ni: 0.01%, Sr: 0.05%, Bi: 0.15%, Fe: 0.1%, Pb: 0.01%, Cr: 0.08% ; The rest are Al.

[0020] Its manufacturing process includes the following steps:

[0021] (1) Preheat the melting furnace for 15 minutes, put pure aluminum ingots into the furnace, heat to 700 ° C, and keep the temperature of the melted aluminum liquid at a constant temperature for 20 minutes; fully melt the pure aluminum ingots, then add silicon and manganese to the aluminum liquid to melt in turn, Then lower the temperature to 660°C and completely press the magnesium into the alloy liquid;

[0022] (2) Add the remaining alloy components into the alloy liquid, keep it warm for 20 minutes, then raise the temperature to 750°C, add the refining agent into the alloy...

Embodiment 2

[0028] A high-strength aluminum alloy provided by the present invention, the aluminum alloy material is composed of the following components in weight percentage: Zn: 2.5%, Mg: 1.5%, Mn: 0.1%, Zr: 2.2%, W: 0.3% , V: 0.3%, B: 0.03%, Ti: 4%, Si: 0.5%, Ni: 0.03%, Sr: 0.08%, Bi: 0.35%, Fe: 0.4%, Pb: 0.1%, Cr: 0.15% ; The rest are Al.

[0029] Its manufacturing process includes the following steps:

[0030] (1) Preheat the melting furnace for 25 minutes, put pure aluminum ingots into the furnace, heat to 730 ° C, and keep the temperature of the melted aluminum liquid for 30 minutes; fully melt the pure aluminum ingots, then add silicon and manganese to the aluminum liquid to melt in turn , and then lower the temperature to 700°C to completely press the magnesium into the alloy liquid;

[0031] (2) Add the remaining alloy components into the alloy solution, keep it warm for 30 minutes, then raise the temperature to 800°C, add the refining agent into the alloy solution, and keep it...

Embodiment 3

[0037] A high-strength aluminum alloy provided by the present invention, the aluminum alloy material is composed of the following components in weight percentage: Zn: 2%, Mg: 1%, Mn: 0.07%, Zr: 1.8%, W: 0.2% , V: 0.2%, B: 0.02%, Ti: 3%, Si: 0.3%, Ni: 0.02%, Sr: 0.06%, Bi: 0.25%, Fe: 0.2%, Pb: 0.06%, Cr: 0.1% ; The rest are Al. .

[0038] Its manufacturing process includes the following steps:

[0039] (1) Preheat the melting furnace for 20 minutes, put pure aluminum ingots into the furnace, heat to 720 ° C, and keep the temperature of the melted aluminum liquid for 25 minutes; fully melt the pure aluminum ingots, then add silicon and manganese to the aluminum liquid to melt in turn , and then lower the temperature to 680°C to completely press the magnesium into the alloy liquid;

[0040] (2) Add the remaining alloy components into the alloy solution, keep it warm for 25 minutes, then raise the temperature to 780°C, add the refining agent into the alloy solution, and keep it...

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Abstract

The invention provides a high-strength aluminum alloy and belongs to the technical field of aluminum alloys. The material of the aluminum alloy is composed of the following components including, by weight, 1.5%-2.5% of Zn, 0.8%-1.5% of Mg, 0.01%-0.1% of Mn, 1.0%-2.2% of Zr, 0.1%-0.3% of W, 0.1%-0.3% of V, 0.01%-0.03% of B, 2%-4% of Ti, 0.1%-0.5% of Si, 0.01%-0.03% of Ni, 0.05%-0.08% of Sr, 0.15%-0.35% of Bi, 0.1%-0.4% of Fe, 0.01%-0.1% of Pb, 0.08%-0.15% of Cr, and the balance Al. The high-strength aluminum alloy prepared through match of the raw materials, proportion and manufacturing process is high in strength property; a test shows that the yield strength of the high-strength aluminum alloy can reach 780 Mpa, the tensile strength of the aluminum alloy reaches 1000 Mpa or above, and the elongation of the aluminum alloy is about 20%; and the high-strength aluminum alloy is good in anti-aging stability, ductility and comprehensive toughness.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a high-strength aluminum alloy and a manufacturing process thereof. Background technique [0002] Aluminum alloy is an alloy composed of aluminum and other elements. It is the most commonly used material in structural engineering. It has small specific gravity, good heat transfer, good electrical conductivity, environmental protection, and recyclable recycling. It is widely used in 3C, automobiles, etc. Various fields such as transportation, home furnishing, aerospace, chemical industry, rocket, etc. At present, the number and scope of high-strength aluminum alloys used in the industrial field are increasing, but there are many problems in the alloy aluminum in the prior art, which cannot meet the requirements of processing and forming, surface quality and heat treatment, which makes the high-strength aluminum alloy materials Use in industrial fields is limit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C21/10C22C1/02C22C1/06C22F1/04C22F1/053
CPCC22C1/026C22C1/06C22C21/00C22C21/10C22F1/04C22F1/053
Inventor 李翔光王德细俞开升陈春喜于丹敖四海王昌明程国栋李伟梁益龙
Owner 贵州航天风华精密设备有限公司
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