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Scrap aluminum regeneration type heat-resistant aluminum alloy and preparation method thereof

A technology for aluminum alloy and aluminum regeneration, applied in the field of aluminum alloy preparation, can solve the problems of waste of resources, not being effectively utilized, etc., and achieve the effects of slowing down the decomposition speed, small size and large quantity

Active Publication Date: 2017-01-11
广东省科学院工业分析检测中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the scrap aluminum in my country is currently mainly used to regenerate low-value-added cast aluminum alloys. A large number of alloying elements such as copper, magnesium, manganese, and zirconium contained in scrap aluminum have not been effectively utilized, resulting in a huge waste of resources.

Method used

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  • Scrap aluminum regeneration type heat-resistant aluminum alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The raw material composition of heat-resistant aluminum alloy is: 60.5% waste aluminum profiles (chemical composition and mass percentage are: Mg 1.2%, Si 0.8%, Fe 0.5%, Cu 0.6%, Mn 0.4%, Zn 0.3%, The balance is Al), 10.5% waste aluminum castings (chemical composition and mass percentage: Si 3.5%, Mn 1.5%, Cu 0.2%, Fe 0.9%, Cr 0.45%, Zn 0.3%, the balance is Al), 7.5% waste aluminum plate (chemical composition and mass percentage: Mg 7.5%, Mn 0.7%, Cr 0.05%, Si0.4%, Fe 0.6%, Cu 0.2%, the balance is Al), 16.0% waste aluminum wire (Chemical composition and mass percentage: Zr1.5%, Fe 0.3%, Mg 0.4%, Si 0.25%, Ti 0.015%, B 0.006%, the balance is Al) and 5.5% waste copper wire (chemical composition and quality The percentages are: Bi 0.009%, Sb 0.007%, Fe 0.01%, Ni 0.04%, Pb 0.002%, Sn 0.001%, and the balance is Cu). The preparation steps of the heat-resistant aluminum alloy are as follows:

[0026] (1) Heat and melt waste aluminum profiles, waste aluminum castings, waste a...

Embodiment 2

[0031] The raw material composition of heat-resistant aluminum alloy is: 63.0% waste aluminum profiles (chemical composition and mass percentage are: Mg 0.9%, Si 0.6%, Fe 0.7%, Cu 0.2%, Mn 0.5%, Zn 0.1%, The balance is Al), 10.5% waste aluminum castings (chemical composition and mass percentage: Si 4.0%, Mn 1.9%, Cu 0.3%, Fe 0.5%, Cr 0.4%, Zn 0.2%, the balance is Al), 7.0% waste aluminum plate (chemical composition and mass percentage: Mg 6.5%, Mn 0.7%, Cr 0.45%, Si0.34%, Fe 0.6%, Cu 0.2%, the balance is Al), 15.0% waste aluminum wire (Chemical composition and mass percentage: Zr0.5%, Fe 0.2%, Mg 0.2%, Si 0.5%, Ti 0.01%, B 0.005%, the balance is Al) and 4.5% waste copper wire (chemical composition and quality The percentages are: Bi 0.001%, Sb 0.009%, Fe 0.01%, Ni 0.02%, Pb 0.02%, Sn 0.01%, and the balance is Cu). The preparation steps of the heat-resistant aluminum alloy are as follows:

[0032] (1) Heat and melt waste aluminum profiles, waste aluminum castings, waste alumi...

Embodiment 3

[0037]The raw material composition of heat-resistant aluminum alloy is: 61.5% waste aluminum profiles (chemical composition and mass percentage are: Mg 0.3%, Si 0.3%, Fe 0.2%, Cu 0.8%, Mn 0.55%, Zn 0.2%, The balance is Al), 11.0% waste aluminum castings (chemical composition and mass percentage: Si 5.5%, Mn 3.5%, Cu 0.1%, Fe 0.1%, Cr 0.4%, Zn 0.3%, the balance is Al), 7.5% waste aluminum plate (chemical composition and mass percentage: Mg 4.5%, Mn 0.4%, Cr 0.45%, Si0.4%, Fe 0.2%, Cu 0.4%, the balance is Al), 15.0% waste aluminum wire (Chemical composition and mass percentage: Zr0.5%, Fe 0.2%, Mg 0.7%, Si 0.15%, Ti 0.005%, B 0.001%, the balance is Al) and 5.0% waste copper wire (chemical composition and quality The percentages are: Bi 0.03%, Sb 0.01%, Fe 0.04%, Ni 0.04%, Pb 0.01%, Sn 0.001%, and the balance is Cu). The preparation steps of the heat-resistant aluminum alloy are as follows:

[0038] (1) Heat and melt the above-mentioned waste aluminum profiles, waste aluminum c...

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Abstract

The invention discloses a scrap aluminum regeneration type heat-resistant aluminum alloy and a preparation method of the scrap aluminum regeneration type heat-resistant aluminum alloy. The raw materials of the heat-resistant aluminum alloy comprise, by mass, 60.5%-63.0% of scrap aluminum profiles, 10.5%-11.0% of scrap aluminum castings, 7.0%-7.5% of scrap aluminum plates, 15.0%-16.0% of waste aluminum wires and 4.5%-5.5% of scrap copper wires. According to the scrap aluminum regeneration type heat-resistant aluminum alloy and the preparation method of the scrap aluminum regeneration type heat-resistant aluminum alloy, scrap aluminum is used as the raw material to be directly regenerated for production of the heat-resistant aluminum alloy, the use value of the scrap aluminum is improved, the production cost of the heat-resistant aluminum alloy is lowered, and the produced heat-resistant aluminum alloy has excellent indoor-temperature strength and high-temperature strength, can be applied to the automobile field, the rail transit field, the maritime work facility field, the aerospace field and the like and has broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy preparation, and in particular relates to a regenerated heat-resistant aluminum alloy from waste aluminum and a preparation method thereof. Background technique [0002] Heat-resistant aluminum alloys refer to aluminum alloys that can be used at higher temperatures without softening. Heat-resistant aluminum alloys are widely used in automotive engine blocks, cylinder heads, pistons, gearbox housings, turbine compressor blades, transportation tool connectors, oil drill pipes, aircraft bulkheads, spars, rivets, missile casings, etc. With the rapid development of automobiles, rail transit, marine engineering equipment, aerospace, and weaponry, there is an increasing demand for heat-resistant aluminum alloys. [0003] Literature search found that the existing technology mainly uses primary aluminum as raw material, and then adds copper, magnesium, manganese, zirconium and other alloying elemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C1/02C22F1/04
CPCC22C1/026C22C1/06C22F1/002C22F1/04
Inventor 牛艳萍唐维学杨勇王顺成
Owner 广东省科学院工业分析检测中心
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