Waste aluminum regenerated high-strength and high-toughness aluminum alloy and preparation method thereof

An aluminum alloy and aluminum regeneration technology, applied in the field of aluminum alloy, can solve the problems of high production cost of cast aluminum alloy, restrict the application of cast aluminum alloy, low strength, etc., and achieve the effects of improving strength and plasticity, reducing production cost and high strength

Active Publication Date: 2021-06-04
GUANGDONG ENG POLYTECHNIC COLLEGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing cast aluminum alloys, such as ADC10, ADC12, etc., have good casting fluidity and machining performance, but generally have the problems of low strength and poor plasticity, which seriously restrict the application of cast aluminum alloys on auto parts. application
In addition, the existing cast aluminum alloys are mainly prepared with pure aluminum as the main raw material, and alloy elements such as silicon and magnesium are added during the smelting process, resulting in high production costs of cast aluminum alloys
Therefore, the existing cast aluminum alloys and their preparation methods still need to be improved and developed.

Method used

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  • Waste aluminum regenerated high-strength and high-toughness aluminum alloy and preparation method thereof
  • Waste aluminum regenerated high-strength and high-toughness aluminum alloy and preparation method thereof
  • Waste aluminum regenerated high-strength and high-toughness aluminum alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The aluminum alloy consists of the following mass percentage of ingredients: Si 8.74%, Mg 0.36%, Fe 0.64%, CR0.037%, Ti 0.030%, BA 0.030%, C 0.004%, B 0.005% The balance is Al and impurity elements, and the monocity of impurity elements is ≤0.05%, and the total amount is ≤0.15%.

[0071] The aluminum alloy is used to regenerate, including the following steps:

[0072] (1) Select waste car motor shell, waste motorcycle wheel, waste ship aluminum plate, waste mobile shell, aluminum nickel carbon alloy, barium barium alloy and aluminum boron alloy as raw materials;

[0073] (2) Waste automotive motor shells will account for 68% of the total amount of raw materials, 22% of the waste motorcycle hub, 6% waste ship aluminum plate and 3.2% of the waste mobile shell are heated into an aluminum alloy liquid at 740 ° C;

[0074] (3) Adding an aluminum nickel-carbon alloy having a total amount of 0.4% of the total weight of the raw material, 0.3% aluminum barium alloy and 0.1% aluminum...

Embodiment 2

[0080] Aluminum alloy consists of the following mass percentage of ingredients: Si 8.52%, Mg 0.37%, Fe 0.63%, CR0.043%, Ti 0.04%, Ni 0.030%, BA 0.040%, C 0.006%, B 0.010% The balance is Al and impurity elements, and the monocity of impurity elements is ≤0.05%, and the total amount is ≤0.15%.

[0081] The aluminum alloy is used to regenerate, including the following steps:

[0082] (1) Select waste car motor shell, waste motorcycle wheel, waste ship aluminum plate, waste mobile shell, aluminum nickel carbon alloy, barium barium alloy and aluminum boron alloy as raw materials;

[0083] (2) Waste automotive motor shells that will account for 67% of the total amount of raw materials, 21% of the waste motorcycle hub, 7% used ship aluminum plate and 3.8% waste mobile shell are heated to aluminum alloy fluids at 750 ° C;

[0084] (3) Adding an aluminum nickel carbon alloy having a total amount of raw material, 0.4% aluminum barium alloy, and 0.2% aluminum boron alloy in the aluminum allo...

Embodiment 3

[0090] Aluminum alloy consists of the following mass percentage of ingredients: Si 8.74%, Mg 0.35%, Fe 0.64%, CR0.037%, Ti 0.025%, BA 0.035%, C 0.005%, B 0.007% The balance is Al and impurity elements, and the monocity of impurity elements is ≤0.05%, and the total amount is ≤0.15%.

[0091] The aluminum alloy is used to regenerate, including the following steps:

[0092] (1) Select waste car motor shell, waste motorcycle wheel, waste ship aluminum plate, waste mobile shell, aluminum nickel carbon alloy, barium barium alloy and aluminum boron alloy as raw materials;

[0093] (2) Waste automotive motor shells that will account for 68% of the total amount of raw materials, 22% of used motorcycle hub, 6% used ship aluminum plate and 3% used mobile phone case were heated to aluminum alloy fluids at 745 ° C;

[0094] (3) Adding an aluminum nickel-carbon alloy having a total amount of 0.5% of the total amount of raw material, 0.35% aluminum barium alloy and 0.15% aluminum boron alloy are...

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Abstract

The invention discloses a waste aluminum regenerated high-strength and high-toughness aluminum alloy and a preparation method thereof, and belongs to the technical field of aluminum alloy preparation. The aluminum alloy is prepared from, by mass, 8.52-8.74% of Si, 0.35-0.38% of Mg, 0.63-0.64% of Fe, 0.037-0.043% of Cr, 0.012-0.016% of Ti, 0.034-0.035% of Mn, 0.020-0.030% of Ni, 0.030-0.040% of Ba, 0.004-0.006% of C, 0.005-0.010% of B, and the balance Al and impurity elements. According to the waste aluminum regenerated high-strength and high-toughness aluminum alloy and the preparation method thereof, the high-strength and high-toughness aluminum alloy is regenerated by taking waste aluminum as the main raw material, so that recycling of metal resources such as Al, Si and Mg is realized, the use value of the waste aluminum is improved, and the production cost of the aluminum alloy is reduced. The prepared aluminum alloy is high in strength, good in plasticity and suitable for casting and forming various stress structural parts with high requirements for strength and plasticity.

Description

Technical field [0001] The present invention belongs to the field of aluminum alloy, and more particularly to a high-strength aluminum alloy of waste aluminum and its preparation method thereof. Background technique [0002] The cast aluminum alloy has good casting properties, machining performance and wear resistance, widely used in automotive, motorcycles, electronic appliances, mechanical equipment and other fields. With a lightweight development, a large amount of parts, such as automotive steering sides, damping tower, suspension bracket, airbag support arm, control arm, brake caliper, etc., it requires "aluminum steel", which has arrived lightly. purpose. These components belong to the power structure of the safety system in the automobile, so the development of the car is lightweight on these aluminum alloy components requires increasingly high strength, such as high strength and excellent plasticity. Improve the safety and service life of the car. [0003] The existing ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/04C22C1/03C22C1/06C22F1/043
CPCC22C1/026C22C1/03C22C1/06C22C21/04C22F1/002C22F1/043
Inventor 陈学文王顺成邝治全付亚城
Owner GUANGDONG ENG POLYTECHNIC COLLEGE
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