Aircraft rotor cross beam aluminum alloy profile and preparation method thereof

A technology of aluminum alloy profiles and rotors, which is applied in the field of aircraft rotor beam aluminum alloy profiles and its preparation, to achieve strong solid solution strengthening, simple smelting and heat treatment processes, and improved high-temperature performance

Inactive Publication Date: 2021-01-08
SHANDONG NANSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Al-Mg-RE, Al-Si-RE, Al-Mg-Si-RE, Al-Zn-Mg-RE and other series of heat-resistant aluminum alloys have been developed successively. However, the various grades of heat-resistant aluminum alloys developed above There are very few actually applied in it. Therefore, it is necessary to develop new heat-resistant aluminum alloys with high economy and good mechanical properties at room temperature and high temperature, which can greatly expand the application range of aluminum alloys.

Method used

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  • Aircraft rotor cross beam aluminum alloy profile and preparation method thereof
  • Aircraft rotor cross beam aluminum alloy profile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1: Accurately weigh AL, Mg, master alloy Al- Cu, master alloy Al-Ag, master alloy Al-Mn and master alloy Al-Zr are fed into the preheating kettle for preheating;

[0027] Step 2: Send aluminum and magnesium into the melting kettle for melting, heat up to 730°C after melting, add master alloy Al-Cu, master alloy Al-Ag, master alloy Al-Mn and master alloy Al-Zr, keep warm for 8 minute;

[0028] Step 3: After all the metals are melted, remove impurities, raise the temperature to 775°C, stir evenly, then lower the temperature, and let it stand for 5 minutes to obtain the alloy liquid;

[0029] Step 4: Casting, pour the alloy liquid into the mold for casting, and naturally cool to cast aluminum alloy block;

[0030] Step 5: Perform solid solution treatment and effect treatment on the cast aluminum alloy in sequence.

Embodiment 2

[0032] Step 1: Accurately weigh AL, Mg, master alloy Al- Cu, master alloy Al-Ag, master alloy Al-Mn and master alloy Al-Zr are fed into the preheating kettle for preheating;

[0033] Step 2: Send aluminum and magnesium into the melting kettle for melting, heat up to 730°C after melting, add master alloy Al-Cu, master alloy Al-Ag, master alloy Al-Mn and master alloy Al-Zr, keep warm for 8 minute;

[0034] Step 3: After all the metals are melted, remove impurities, raise the temperature to 775°C, stir evenly, then lower the temperature, and let it stand for 5 minutes to obtain the alloy liquid;

[0035] Step 4: Casting, pour the alloy liquid into the mold for casting, and naturally cool to cast aluminum alloy block;

[0036] Step 5: Perform solid solution treatment and effect treatment on the cast aluminum alloy in sequence.

Embodiment 3

[0038] Step 1: Accurately weigh AL, Mg, master alloy Al- Cu, master alloy Al-Ag, master alloy Al-Mn and master alloy Al-Zr are fed into the preheating kettle for preheating;

[0039] Step 2: Send aluminum and magnesium into the melting kettle for melting, heat up to 730°C after melting, add master alloy Al-Cu, master alloy Al-Ag, master alloy Al-Mn and master alloy Al-Zr, keep warm for 8 minute;

[0040] Step 3: After all the metals are melted, remove impurities, raise the temperature to 775°C, stir evenly, then lower the temperature, and let it stand for 5 minutes to obtain the alloy liquid;

[0041] Step 4: Casting, pour the alloy liquid into the mold for casting, and naturally cool to cast aluminum alloy block;

[0042] Step 5: Perform solid solution treatment and effect treatment on the cast aluminum alloy in sequence.

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Abstract

The invention relates to an aircraft rotor cross beam aluminum alloy profile and a preparation method thereof, and belongs to the field of aircraft rotor cross beam aluminum alloy profile manufacturing. The aircraft rotor cross beam aluminum alloy profile is prepared from the following substances in percentage by mass: 5.0-8.0% of Cu, 1.5-2.5% of Mg, 0.5-1.5% of Ag, 0.3-0.6% of Mn, 0.2-0.5% of Zr,and the balance of Al and inevitable impurities. By introducing a proper amount of cheap alloy elements such as Cu, Mg, Ag, Mn and Zr, the high-temperature performance of the aluminum alloy can be remarkably improved, and the application range of the aluminum alloy is expanded; and the aluminum alloy is low in cost, simple in smelting and heat treatment process and uniform in microstructure, andthe mechanical property and heat resistance of the alloy are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy profiles of aircraft rotor beams, in particular to an aluminum alloy profile of aircraft rotor beams and a preparation method thereof. Background technique [0002] The rotor beam structure is an indispensable part of the fuselage structure of civil aircraft, and generally consists of beams, longitudinal beams (including slide rails), pillars and lateral pressure relief structures. Among them, the beam bears the load of the rotor and needs to be connected with the longitudinal beam, pillar and fuselage frame respectively, which is a relatively critical structure. Compared with other parts of the fuselage, the rotor spar has clear structural functions and clear forces, and there are fewer related structures around it, so it usually does not cause catastrophic accidents. However, for the rotor beam structure, especially the rotor beam structure, the cross-sectional shape of the parts is basi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/16C22C1/03C22F1/057
CPCC22C1/026C22C1/03C22C21/16C22F1/057
Inventor 隋来智马旭程仁寨孟凡林王兴瑞张小刚隋信磊任阁
Owner SHANDONG NANSHAN ALUMINUM
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