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Aluminium alloy section for high speed train body and manufacturing method of aluminium alloy section

A technology for aluminum alloy profiles and high-speed trains, applied in the field of aluminum alloy profile manufacturing, can solve the problems of insufficient strength, plasticity, corrosion resistance and welding performance of aluminum alloy profiles, and achieve broad market application prospects, good welding performance, and high strength. Effect

Active Publication Date: 2017-05-10
佛山市三水凤铝铝业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide an aluminum alloy profile for a high-speed train body and a manufacturing method thereof, aiming at solving the problems of strength, plasticity, corrosion resistance and welding of the aluminum alloy profile in the prior art. Insufficient performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The mass percentage of the production components of an aluminum alloy profile for a high-speed train body: Zn 5.5%, Mg 1.5%, Si0.5%, Ru 0.1%, V 0.1%, Ti 0.03%, and the rest are Al and unavoidable impurities , wherein the content of a single impurity is less than 0.05%, and the total amount of impurities is less than 0.15%.

[0041] The manufacturing method of the aluminum alloy profile for the high-speed train car body comprises the following steps:

[0042] Step 1: Select aluminum ingots, zinc ingots, magnesium ingots, crystalline silicon, Al-20Ru alloys, Al-10V alloys and Al-20Ti alloys with a purity greater than 99.9% as raw materials;

[0043] The second step: heating and melting the aluminum ingot at 720°C, and then adding 5.5% zinc ingot, 1.5% magnesium ingot, 0.5% crystalline silicon, 0.5% Al-20Ru alloy, 1% Al- 10V alloy and 0.15% Al-20Ti alloy are stirred and melted into aluminum alloy liquid;

[0044] The third step: using No. 2 refining agent accounting for ...

Embodiment 2

[0051] The mass percentage of the production components of an aluminum alloy profile for a high-speed train body: Zn 6.0%, Mg 2.0%, Si0.2%, Ru 0.15%, V 0.2%, Ti 0.04%, the rest is Al and unavoidable impurities , wherein the content of a single impurity is less than 0.05%, and the total amount of impurities is less than 0.15%.

[0052] The manufacturing method of the aluminum alloy profile for the high-speed train car body comprises the following steps:

[0053] Step 1: Select aluminum ingots, zinc ingots, magnesium ingots, crystalline silicon, Al-20Ru alloys, Al-10V alloys and Al-20Ti alloys with a purity greater than 99.9% as raw materials;

[0054] The second step: heating and melting the aluminum ingot at 760°C, and then adding 6.0% zinc ingot, 2.0% magnesium ingot, 0.7% crystalline silicon, 1% Al-20Ru alloy, 2.0% Al- 10V alloy and 0.2% Al-20Ti alloy are stirred and melted into aluminum alloy liquid;

[0055] The third step: using No. 2 refining agent accounting for 0.7% ...

Embodiment 3

[0062] The mass percentage of the production components of an aluminum alloy profile for a rail transit vehicle: Zn 6.5%, Mg 2.5%, Si 1.0%, Ru 0.3%, V 0.3%, Ti 0.05%, the rest are Al and unavoidable impurities, Among them, the content of a single impurity is less than 0.05%, and the total amount of impurities is less than 0.15%.

[0063] The manufacturing method of the aluminum alloy profile for the high-speed train car body comprises the following steps:

[0064] The first step: select aluminum ingots, zinc ingots, magnesium ingots, crystalline silicon, Al-20Ru alloys, Al-10V alloys and Al-20Ti alloys with a purity greater than 99.9% as raw materials; RuV

[0065] The second step: heating and melting the aluminum ingot at 780°C, and then adding 6.5% zinc ingot, 2.5% magnesium ingot, 1% crystalline silicon, 1.5% Al-20Ru alloy, 3% Al- 10V alloy and 0.25% Al-20Ti alloy are stirred and melted into aluminum alloy liquid;

[0066] The third step: using No. 2 refining agent accoun...

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Abstract

The invention provides an aluminium alloy section for a high speed train body and a manufacturing method of the aluminium alloy section. The aluminium alloy section comprises the following components in percentage by mass: 5.5-6.5 percent of Zn, 1.5-2.5 percent of Mg, 0.5-1.0 percent of Si, 0.1-0.3 percent of Ru, 0.1-0.3 percent of V, 0.03-0.05 percent of Ti, and the balance of Al and inevitable impurities, wherein the content of single impurities is lower than 0.05%, and the total content of the impurities is lower than 0.15%. The aluminium alloy section has the advantages of being high in strength, high in plasticity, high in corrosion resistance and high in welding performance, the tensile strength of the aluminium alloy section is higher than 450 MPa, the yield strength of the aluminium alloy section is higher than 380 MPa, the elongation of the aluminium alloy section is higher than 10%, and the aluminium alloy section is suitable for manufacturing a center sill, a sleeper beam and an end beam of an underframe of the high speed train body and a bottom panel, a top panel, a side wall and an end wall of a carriage; and the aluminium alloy section has a wide market prospect.

Description

technical field [0001] The invention relates to the field of manufacturing aluminum alloy profiles, in particular to an aluminum alloy profile for a high-speed train body and a manufacturing method thereof. Background technique [0002] my country is currently the country with the longest mileage of high-speed railways in the world, including high-speed railways, bullet trains, subways, urban light rail, maglev and other rail transit. The highest test speed of high-speed railways has reached 486.1 km / h. Lightweight structure of high-speed train body is an effective way to improve the running speed and carrying capacity of high-speed train body. Aluminum alloy has the advantages of light weight, high specific strength, corrosion resistance, good thermal conductivity, easy processing and easy surface protection treatment, etc. It is the material of choice for lightweight high-speed train body structure. At present, most of the high-speed train bodies running in my country, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/03
CPCC22C1/026C22C1/03C22C21/10
Inventor 胡权王顺成黄志其鲁炎卿
Owner 佛山市三水凤铝铝业有限公司
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