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High-strength aluminum alloy and production method thereof
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A production method and aluminum alloy technology, which is applied in the field of alloy processing technology, can solve problems such as poor mechanical properties of aluminum alloys, and achieve the effects of favorable mechanical properties, high strength, and refined grains
Inactive Publication Date: 2020-04-17
SHANDONG NANSHAN ALUMINUM
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[0003] In order to solve the deficiencies of the prior art, the present invention provides a high-strength aluminum alloy and a production method thereof, which can improve the existing problems of poor mechanical properties of the aluminum alloy, and the aluminum alloy product has good plasticity, high strength, and a simple preparation method Easy to implement, strong process portability
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Embodiment 1
[0038] A high-strength aluminum alloy produced by the following production method:
[0039] (1) Configure raw materials
[0040] According to the weight percentage content of Cu5.5%, Mg0.6%, Ag0.4%, Y0.2%, the balance is Al and unavoidable impurities, the proportion of alloys, the raw materials of elements Al and Mg are pure aluminum and magnesium , The raw materials of elements Cu, Ag, and Y are Al-50Cu, Al-10Ag, and Al-30Y master alloys.
[0041] (2)
[0042]S1. Smelting the prepared materials: Preheat pure aluminum, magnesium and Al-50Cu, Al-10Ag, Al-30Y master alloys at 280°C; melt the preheated pure aluminum and magnesium, and heat to Add master alloys Al-50Cu, Al-10Ag, Al-30Y at 710-720°C.
[0043] S2: Refining: heat the routine obtained in step S1 until the alloy is completely melted, remove surface scum, then raise the temperature to 740°C, stir, then cool down to 700°C and keep warm to obtain alloy liquid.
[0044] S3: Casting: pour the alloy liquid obtained in st...
Embodiment 2
[0048] A high-strength aluminum alloy, its composition is calculated by mass percentage, including: Cu6%, Mg0.7%, Ag0.5%, Y0.3%, the balance is Al and unavoidable impurities.
[0049] The preparation method of the high-strength aluminum alloy is the same as in Example 1.
Embodiment 3
[0051] A high-strength aluminum alloy, its composition is calculated by mass percentage, including: Cu6.5%, Mg0.8%, Ag0.6%, Y0.4%, the balance is Al and unavoidable impurities.
[0052] The preparation method of the high-strength aluminum alloy is the same as in Example 1.
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Abstract
The invention provides a high-strength aluminum alloy and a production method thereof, and mainly relates to the field of alloymachining technology. The high-strength aluminum alloy is characterizedby comprising the following elements in percentage by mass: 5.5%-6.5% of Cu, 0.6%-0.8% of Mg, 0.4%-0.6% of Ag, 0.2%-0.4% of Y and the balance of Al and inevitable impurities. The production method ofthe high-strength aluminum alloy comprises the steps that materials are sequentially subjected to smelting, refining, casting, homogenizing treatment and aging treatment, and the high-strength aluminum alloy composed of the alloy elements is obtained. The high-strength aluminum alloy and the production method of the high-strength aluminum alloy have the beneficial effects that the problem of poormechanical properties of an existing aluminum alloy is solved, aluminum alloy products have good plasticity and high strength, the preparation method is simple and easy, and the technology portabilityis high.
Description
technical field [0001] The invention mainly relates to the field of alloy processing technology, in particular to a high-strength aluminum alloy and a production method thereof. Background technique [0002] In the development of modern industries such as aerospace, rail transit and new energy vehicles, there are urgent requirements for lightweight structures. As a commonly used lightweight metalstructural material, aluminum alloy has received more and more attention, and has been applied to a certain extent in the fields of national defense, aerospace, high-speed rail transit, and electronic communications. At present, commercial aluminum alloys can be basically divided into two categories: cast aluminum alloys and deformed aluminum alloys. 2-series aluminum alloys are widely used due to their low price and good casting process, mainly including 2A12, 2024, and 2A70 aluminum alloys. Among them, the ultimate tensile strength of 2A12-T6 aluminum alloy is 415-435MPa, the ul...
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