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Aluminum alloy with high zinc content and preparing method of aluminum alloy

A technology of aluminum alloy and content, applied in the field of material processing, can solve the problems of limited comprehensive mechanical properties of alloys, inability to meet the standard requirements of ultra-high strength aluminum alloys, etc., and achieve the effect of excellent surface quality

Active Publication Date: 2016-03-30
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is very limited in improving the comprehensive mechanical properties of the alloy, and cannot meet the standard requirements of ultra-high-strength aluminum alloys.

Method used

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  • Aluminum alloy with high zinc content and preparing method of aluminum alloy
  • Aluminum alloy with high zinc content and preparing method of aluminum alloy
  • Aluminum alloy with high zinc content and preparing method of aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Alloy composition ratio

[0023]

[0024]

[0025] 2. Preparation materials

[0026] 1. Melting refined Al ingots, Zn ingots, Mg ingots and master alloys Al-Cu, Al-Zr, Al-Be at 720°C;

[0027] 2. After the alloy is completely melted and the temperature is stabilized, it is processed by multi-layer ceramic melt filtration technology and chlorine-argon mixed gas refining technology, and the billet is made by semi-continuous casting with hot top water cooling at the same level within the temperature range of 675-685 °C;

[0028] 3. After the billet is homogenized, it is extruded into a round bar of Φ15mm at 400-420°C.

[0029] 3. Performance test

[0030] The mechanical properties of the finally obtained extruded rods were tested. The result is:

[0031] mechanical properties

Embodiment 2

[0033] 1. Alloy composition ratio

[0034] the element

Zn

Mg

Cu

Zr

be

Al

Content (wt.%)

12

3.0

2.3

0.12

0.001

Bal.

[0035] 2. Preparation materials

[0036] 1. Melting refined Al ingots, Zn ingots, Mg ingots and master alloys Al-Cu, Al-Zr, Al-Be at 720°C;

[0037] 2. After the alloy is completely melted and the temperature is stabilized, it is processed by multi-layer ceramic melt filtration technology and chlorine-argon mixed gas refining technology, and the billet is made by semi-continuous casting with hot top water cooling at the same level within the temperature range of 675-685 °C;

[0038] 3. After the billet is homogenized, it is extruded into a round bar of Φ15mm at 400-420°C.

[0039] 3. Performance test

[0040] The mechanical properties of the finally obtained extruded rods were tested. The result is:

[0041] mechanical properties

Embodiment 3

[0043] 1. Alloy composition ratio

[0044] the element

Zn

Mg

Cu

Zr

be

Al

Content (wt.%)

13.5

3.5

2.5

0.08

0.0005

Bal.

[0045] 2. Preparation materials

[0046] 1. Melting refined Al ingots, Zn ingots, Mg ingots and master alloys Al-Cu, Al-Zr, Al-Be at 720°C;

[0047] 2. After the alloy is completely melted and the temperature is stabilized, it is processed by multi-layer ceramic melt filtration technology and chlorine-argon mixed gas refining technology, and the billet is made by semi-continuous casting with hot top water cooling at the same level within the temperature range of 675-685 °C;

[0048] 3. After the billet is homogenized, it is extruded into a round bar of Φ15mm at 400-420°C.

[0049] 3. Performance test

[0050] The mechanical properties of the finally obtained extruded rods were tested. The result is:

[0051]

[0052]

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Abstract

The invention relates to an aluminum alloy with the high zinc content and a preparing method of the aluminum alloy, and belongs to the material processing field. The standard requirements of various industries for materials are gradually converted into the requirements for ultra-high strength and ultra-low weight, and the demand is particularly obvious in the aerospace and other military fields. Under the condition that the same bearing capability is provided, the higher the strength of the materials is, the fewer the needed supporting materials is, and therefore the total mass is reduced. Due to the fact that the heat transferring, mass transferring, fluid flowing and the like of melt are decided through a casting technology, the casting technology becomes the important factor for deciding the final microscopic structure of the melt. Same level hot-top water-cooling semi-continuous casting is adopted, the multi-layer ceramic melt filtering technology and the chlorine and argon mixed gas refining technology are combined, the ultra-high-strength aluminum alloy with the Zn content of 11.5-13.5 % is prepared, forming of an aluminum alloy ingot casting with the high zinc content is smoothly achieved while the superior interior quality is guaranteed, and the excellent surface quality is achieved.

Description

technical field [0001] The invention relates to an aluminum alloy with high zinc content and a preparation method thereof, belonging to the field of material processing. Background technique [0002] In recent years, green and sustainable development has been deeply rooted in the hearts of the people. How to save energy, improve efficiency, shorten the process flow, and reduce energy consumption and pollution in industrial production has increasingly become the focus of attention. Therefore, the standard requirements for materials in various industries are gradually changing to the direction of ultra-high strength and ultra-light weight. This demand is especially prominent in military fields such as aerospace. Under the condition of providing the same load-carrying capacity, the higher the strength of the material, the less supporting material is needed, so that the overall mass is reduced. Therefore, the strengthening, toughness and lightweight of materials have become the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/03C22F1/053
Inventor 杨守杰于海军王玉灵戴圣龙
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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