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Aluminum profile with improved fatigue resistance and casting technology thereof

A technology of fatigue performance and casting process, applied in the field of aluminum alloy processing, can solve the problems of low fatigue resistance and can not meet the requirements of high fatigue performance of aluminum alloy materials, and achieve improved fatigue resistance, fatigue resistance and high strength. Effect

Inactive Publication Date: 2020-08-14
郑州明泰交通新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing 6005A aluminum alloy material chemical composition ratio produces profiles with low fatigue resistance, which cannot meet the high fatigue performance requirements of rail transit for aluminum alloy materials

Method used

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  • Aluminum profile with improved fatigue resistance and casting technology thereof
  • Aluminum profile with improved fatigue resistance and casting technology thereof
  • Aluminum profile with improved fatigue resistance and casting technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An aluminum profile for improving fatigue performance, comprising the following components (mass percentage): Si: 0.65%, Fe: 0.14%, Cu: 0.08%, Mn: 0.16%, Mg: 0.54%, Cr: 0.14%, Zn: 0.015%, Ti: 0.03%, the total content of other impurity elements ≤ 0.15%, and the balance is Al.

[0026] Wherein, the mass percentage of Mn+Cr is: 0.3%, and the hydrogen content is 0.15ml / 100gAl.

Embodiment 2

[0028] An aluminum profile for improving fatigue performance, comprising the following components (mass percentage): Si: 0.65%, Fe: 0.14%, Cu: 0.08%, Mn: 0.15%, Mg: 0.54%, Cr: 0.15%, Zn: 0.015%, Ti: 0.03%, the total content of other impurity elements ≤ 0.15%, and the balance is Al.

[0029] Wherein, the mass percentage of Mn+Cr is: 0.3%, and the hydrogen content is 0.15ml / 100gAl.

Embodiment 3

[0031] An aluminum profile for improving fatigue performance, comprising the following components (mass percentage): Si: 0.65%, Fe: 0.14%, Cu: 0.08%, Mn: 0.19%, Mg: 0.54%, Cr: 0.14%, Zn: 0.015%, Ti: 0.03%, the total content of other impurity elements ≤ 0.15%, and the balance is Al.

[0032] Wherein, the mass percentage of Mn+Cr is: 0.33%, and the hydrogen content is 0.15ml / 100gAl.

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PUM

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Abstract

The invention discloses an aluminum profile with improved fatigue resistance and a casting technology thereof. The aluminum profile comprises the following components (percentage) of 0.65% of Si, 0.14% of Fe, 0.08% of Cu, 0.15% of Mn, 0.54% of Mg, 0.14% of Cr, 0.015% of Zn, 0.03% of Ti, other impurity elements with the total content less than or equal to 0.15 part, and the balance Al, wherein themass percent of Mn and Cr is 0.29%, and the hydrogen content is 0.15ml per 100g of Al. According to the aluminum profile and the casting technology, by reasonably adjusting the chemical component proportion and the casting technological process, the fatigue resistance of the 6005A aluminum alloy material is improved, existing domestic aluminum alloy smelting and casting equipment can be adopted for implementation easily, and the finally obtained aluminum alloy profile is high in strength and obviously improved in fatigue resistance by adopting the aluminum alloy with optimized components.

Description

Technical field: [0001] The invention relates to the field of aluminum alloy processing, in particular to a special spreader for rail vehicle floor side beams. Background technique: [0002] Aluminum alloy has low density, but relatively high strength, which is close to or exceeds high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is widely used in industry, and its usage is second only to steel. . It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. [0003] The existing 6005A aluminum alloy material chemical composition ratio produces low fatigue resistance of profiles, which cannot meet the high fatigue performance requirements of rail transit for aluminum alloy materials. Invention content: [0004] The technical problem to be solved by the present invention is: to overcome ...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/03C22C1/06
CPCC22C1/026C22C1/03C22C1/06C22C21/02
Inventor 吴亚王红良王军灿王伯琛
Owner 郑州明泰交通新材料有限公司