High-strength bending-resistant aluminum alloy and preparation process thereof

A preparation process and aluminum alloy technology, which is applied in the field of aluminum alloy preparation, can solve the problems of thick aluminum alloy workpieces and non-light weight, and achieve the effects of improving profile performance, improving tensile strength, and prolonging service life

Pending Publication Date: 2021-12-21
GUANGZHOU GOLDEN ALUMINUM ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the lack of strength and bending resistance of aluminum alloys in the prior art, resulting in the problem being solved by strengthening the thickness of the aluminum alloy during production, resulting in thick aluminum alloy workpieces that are not lightweight technical flaw

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a high-strength and bending-resistant aluminum alloy. The raw materials for the preparation of the aluminum alloy include the following components (by mass percentage): Cu: 3.5%, Mg: 0.13%, Zn: 0.15%, Mn: 0.5% , Cr: 0.25%, Zr: 0.22%, Si: 0.21%, Fe: 0.15%, Ti: 0.4%, Ni: 0.2%, Sr: 0.05%, V: 0.1%, modified rare earth: 2.6%, and the rest are Al.

[0026] This embodiment provides a modified rare earth and its preparation method. The raw materials for the preparation of the modified rare earth include the following components: Y: 40%, Gd: 30%, Lu: 30%, wherein the preparation method of the modified rare earth element Including the following steps:

[0027] 1. Grinding and sieving silicon carbide ceramics to obtain nano silicon carbide particles;

[0028] 2. Get Y, Gd and Lu in the beaker according to the weight ratio, add an appropriate amount of hydrochloric acid in the beaker, stir to make it mix evenly, then add the nano-silicon carbide particles...

Embodiment 2

[0038] This embodiment provides a high-strength and bending-resistant aluminum alloy. The raw materials for the preparation of the aluminum alloy include the following components (by mass percentage): Cu: 3.2%, Mg: 0.14%, Zn: 0.16%, Mn: 0.6% , Cr: 0.27%, Zr: 0.25%, Si: 0.22%, Fe: 0.2%, Ti: 0.3%, Ni: 0.22%, Sr: 0.06%, V: 0.2%, modified rare earth: 2.8%, and the rest are Al.

[0039] This embodiment provides a modified rare earth and its preparation method. The raw materials for the preparation of the modified rare earth include the following components: Y: 45%, Gd: 25%, Lu: 30%, wherein the preparation method of the modified rare earth element Including the following steps:

[0040] 1. Grinding and sieving silicon carbide ceramics to obtain nano silicon carbide particles;

[0041] 2. Get Y, Gd and Lu in the beaker according to the weight ratio, add an appropriate amount of hydrochloric acid in the beaker, stir to make it mix evenly, then add the nano-silicon carbide particles...

Embodiment 3

[0051] This embodiment provides a high-strength and bending-resistant aluminum alloy, the raw materials for the preparation of the aluminum alloy include the following components (by mass percentage): Cu: 4%, Mg: 0.15%, Zn: 0.16%, Mn: 0.6% , Cr: 0.3%, Zr: 0.25%, Si: 0.22%, Fe: 0.2%, Ti: 0.3%, Ni: 0.22%, Sr: 0.06%, V: 0.2%, modified rare earth: 3%, and the rest are Al.

[0052] This embodiment provides a modified rare earth and its preparation method. The raw materials for the preparation of the modified rare earth include the following components: Y: 50%, Gd: 25%, Lu: 25%, wherein the preparation method of the modified rare earth element Including the following steps:

[0053] 1. Grinding and sieving silicon carbide ceramics to obtain nano silicon carbide particles;

[0054] 2. Get Y, Gd and Lu in the beaker according to the weight ratio, add an appropriate amount of hydrochloric acid in the beaker, stir to make it mix evenly, then add the nano-silicon carbide particles prep...

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Abstract

The invention relates to a high-strength bending-resistant aluminum alloy and a preparation process thereof. The high-strength bending-resistant aluminum alloy is characterized in that the aluminum alloy is prepared from the following raw materials in percentage: 3%-4.2% of Cu, 0.12%-0.15% of Mg, 0.1%-0.18% of Zn, 0.4%-0.65% of Mn, 0.2%-0.3% of Cr, 0.15%-0.3% of Zr, 0.15%-0.24% of Si, 0.08%-0.2% of Fe, 0.25%-0.4% of Ti, 0.16%-0.24% of Ni, 0.02%-0.08% of Sr, 0.08%-0.2% of V, 2.4%-3.2% of modified rare earth and the balance of Al. By reasonably setting the content of each component, an aluminum alloy section has high strength and excellent bending resistance, and the service life of the section can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy preparation, in particular to a high-strength bending-resistant aluminum alloy and a preparation process thereof. Background technique [0002] Because aluminum alloy has the characteristics of low density, good mechanical properties, good processing performance, non-toxic, easy to recycle, good electrical conductivity, heat transfer and corrosion resistance, it is widely used in marine industry, chemical industry, aerospace, metal packaging, transportation, etc. It is widely used in transportation and other fields. With the rapid development of aluminum alloys, aluminum alloys have been widely used in the manufacture of doors and windows, because many doors and windows are exposed to the air, and also need to bear a certain pressure, but the strength and bending resistance of the current aluminum alloys are insufficient. As a result, during production, the problem is solved by strengtheni...

Claims

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Application Information

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IPC IPC(8): C22C21/18C22C1/02C22F1/057
CPCC22C21/18C22C1/026C22F1/057
Inventor 李智略薛健信赵明楷刘庆华罗朝晖胡志坚赖慧芳孙家富李勃
Owner GUANGZHOU GOLDEN ALUMINUM ALUMINUM
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