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Aluminum alloy, preparation method and applications thereof

A technology of aluminum alloy and silicon aluminum alloy, which is applied in the field of alloy materials, can solve the problem that the mechanical properties of 6082 aluminum alloy cannot meet the requirements of high-speed rail positioners and other problems

Active Publication Date: 2013-02-13
FOSHAN GOLDEN SOURCE ALUMINUM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the mechanical properties of the existing general 6082 aluminum alloy cannot meet the requirements of the high-speed rail positioner. In order to meet the requirements of my country's high-speed railway for new materials, the composition of the aluminum alloy in the national standard was analyzed and optimized, and the alloy composition was redesigned.

Method used

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  • Aluminum alloy, preparation method and applications thereof
  • Aluminum alloy, preparation method and applications thereof
  • Aluminum alloy, preparation method and applications thereof

Examples

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Embodiment 1

[0025] raw material

[0026] Aluminum ingots: Al99.7 aluminum ingots are used, and the mass percentage of Al in the aluminum ingots is more than 99.70%, which meets the standard GB / T1196-2008 "Aluminum Ingots for Remelting";

[0027] Magnesium ingots: Magnesium ingots with the brand Mg-2 are used, and the mass percentage of magnesium in the magnesium ingots meets the standard GB / T3499-2003 "Primary Magnesium Ingots";

[0028] Aluminum-silicon alloy: AlSi12 aluminum-silicon alloy is used, and the mass percentage of silicon in the aluminum-silicon alloy is 12±1%, which meets the standard YS / T282-2000 "Aluminum Master Alloy Ingot";

[0029] Mn additive: use brand 75# manganese agent, the mass percentage of manganese in the manganese agent is 75%, which meets the standard YS / T492-2005 "Aluminum and Aluminum Alloy Component Additives";

[0030] Cr additive: use 75# chromium agent, the mass percentage of chromium in the chromium agent is 75%, which meets the standard YS / T492-2005 "...

Embodiment 2

[0050] (1) Target setting: According to the requirements of aluminum materials for high-speed railways, set the target: the tensile strength is 3-30% higher than the European standard, the yield strength is 8-36% higher than the national standard, and the elongation is higher than the national standard 2-100%;

[0051] (2) Component analysis and determination: according to the set target, carry out component analysis, and finally determine the mass percentage of each component, see Table 1;

[0052] (3) Prepare the material and weigh: the amount of raw materials (the same as in Example 1) is as follows: the mass ratio of the aluminum in the aluminum ingot to the silicon in the aluminum-silicon alloy is 70:1; the addition of the Mn additive is the total amount of the aluminum ingot and the silicon-aluminum alloy 0.75% by weight; the addition of Cr additive is 0.27% of the total weight of aluminum ingot and silicon-aluminum alloy; the addition of magnesium ingot is 0.85% of the ...

Embodiment 3

[0064] (1) Target setting: According to the requirements of aluminum materials for high-speed railways, set the target: the tensile strength is 3-30% higher than the European standard, the yield strength is 8-36% higher than the national standard, and the elongation is higher than the national standard 2-100%;

[0065] (2) Component analysis and determination: according to the set target, carry out component analysis, and finally determine the mass percentage of each component, see Table 1;

[0066] (3) Prepare the material and weigh: the raw material (model is the same as in Example 1) consumption is as follows: the mass ratio of the aluminum in the aluminum ingot and the silicon in the aluminum-silicon alloy is 80: 1; 0.82% of the weight; the addition of Cr additive is 0.33% of the total weight of aluminum ingot and silicon-aluminum alloy; the addition of magnesium ingot is 0.95% of the total weight of aluminum ingot and silicon-aluminum alloy; the addition of electrolytic c...

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Abstract

The present invention discloses an aluminum alloy, which comprises the following components, by mass, 0.8-1.0% of Si, 0.75-0.95% of Mg, 0.01-0.09% of Cu, 0.45-0.85% of Mn, 0.10-0.24% of Cr, less than 0.25% of Fe, less than 0.15% of other impurities, and the balance of Al. A preparation method for the aluminum alloy comprises: adding raw materials to a furnace, and carrying out heating melting; adding a smelting co-solvent to carry out refinement; carrying out a pretreatment on the obtained melt; carrying out a smelting online treatment; filtering; casting; carrying out homogenization; and cooling to obtain the aluminum alloy. The high speed railway aluminum material produced by adopting the aluminum alloy has the following characteristics that: a tensile strength is 3-30% higher than the European standard, a yield strength is 8-36% higher than the national standard, elongation is 2-100% higher than the national standard, fatigue resistance can be more than 500 thousand times, and the aluminum material is suitable for high speed railway locators.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to an aluminum alloy, a preparation method thereof, and an application in preparing a high-speed rail positioner. Background technique [0002] 6082 belongs to the 6××× series (Al-Mg-Si) aluminum alloy. It is an aluminum alloy that can be strengthened by heat treatment. It has medium strength, good welding performance and corrosion resistance. It is mainly used in transportation and structural engineering industries. Such as bridges, cranes, roof structures, transport aircraft, transport ships, etc. In recent years, high-speed railway technology has been continuously upgraded, and the terminal products produced by the alloy components used in the past can only meet the technical requirements of general railway aluminum materials. Material properties must also improve. The high-speed rail locator is a positioning device used in the high-speed rail electrified railway cate...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/08C22C1/03
Inventor 杨双强徐光友朱志坚谭柳玉谭法明王顺利
Owner FOSHAN GOLDEN SOURCE ALUMINUM PROD
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