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Aluminum alloy

An aluminum alloy, weight percentage technology, applied in the field of material engineering, can solve the problems of reducing corrosion resistance, surface scratches, easy deformation, etc., to achieve the effect of improving corrosion resistance, saving production costs, and wide application

Inactive Publication Date: 2015-01-28
江苏礼德铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main alloy composition of 6063 aluminum alloy is: Si: 0.35-0.38%, Mg: 0.5-0.54%, and other trace elements 0.05%. Although 6063 aluminum alloy has the above-mentioned good properties, there are also some defects, such as The surface finish of aluminum produced by 6063 aluminum alloy is not high, only 3.2um rough, easy to be pitted, so that serious surface scratches occur, and its hardness is not high, easy to deform
In addition, in order to improve the corrosion resistance of 6063 aluminum alloy, other alloying elements can be added to it. For example, in recent years, it has been reported that the addition of mixed rare earth elements can effectively improve the corrosion resistance of 6XXX series aluminum alloys, but mixed rare earth elements often contain a variety of Rare earth elements, and the addition amount is relatively large, and the cost is high. If the types of rare earth elements are reduced or the addition amount is reduced, the corrosion resistance will be significantly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The weight percentages of the components in the aluminum alloy in this embodiment are as follows: Si: 0.40%, Mg: 0.56%, Cu: 0.05%, Fe: 0.15%, other unavoidable trace elements 0.05%, and the rest is Al.

[0014] The above components are used to prepare aluminum alloy profile products. The specific preparation method is: after mixing the components evenly, they are homogenized in the aluminum rod furnace to improve the uniformity of the overall performance, so that the material has both appropriate hardness and toughness. Then it is cooled by air, and the ingot is heated at 480-520°C, and then it is sent to the extruder for extrusion. The temperature of the extrusion cylinder is 400°C±10°C, and the extrusion speed is 3.5-4.5m / min. Water mist quenching, after cutting, cooling bed cooling, stretching, straightening, then artificial aging, the holding temperature is 200°C±10°C, and the time is 240min, to obtain the finished aluminum alloy. After testing, the hardness (HW) of...

Embodiment 2

[0016] The weight percentages of the components in the aluminum alloy in this embodiment are as follows: Si: 0.44%, Mg: 0.61%, Cu: 0.05%, Fe: 0.15%, other unavoidable trace elements 0.05%, and the rest is Al.

[0017] The above components are used to prepare aluminum alloy profile products. The specific preparation method is: after mixing the components evenly, they are homogenized in the aluminum rod furnace to improve the uniformity of the overall performance, so that the material has both appropriate hardness and toughness. Then it is cooled by air, and the ingot is heated at 480-520°C, and then it is sent to the extruder for extrusion. The temperature of the extrusion cylinder is 400°C±10°C, and the extrusion speed is 3.5-4.5m / min. Water mist quenching, after cutting, cooling bed cooling, stretching, straightening, then artificial aging, the holding temperature is 200°C±10°C, and the time is 240min, to obtain the finished aluminum alloy. After testing, the hardness (HW) of...

Embodiment 3

[0019] The weight percentages of the components in the aluminum alloy in this embodiment are as follows: Si: 0.42%, Mg: 0.58%, Cu: 0.05%, Fe: 0.15%, other unavoidable trace elements 0.05%, and the rest is Al.

[0020] The above components are used to prepare aluminum alloy profile products. The specific preparation method is: after mixing the components evenly, they are homogenized in the aluminum rod furnace to improve the uniformity of the overall performance, so that the material has both appropriate hardness and toughness. Then it is cooled by air, and the ingot is heated at 480-520°C, and then it is sent to the extruder for extrusion. The temperature of the extrusion cylinder is 400°C±10°C, and the extrusion speed is 3.5-4.5m / min. Water mist quenching, after cutting, cooling bed cooling, stretching, straightening, then artificial aging, the holding temperature is 200°C±10°C, and the time is 240min, to obtain the finished aluminum alloy. After testing, the hardness (HW) of...

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Abstract

The invention discloses aluminum alloy, which comprises the following components in percentage by weight: 0.40 to 0.44 percent of Si, 0.56 to 0.61 percent of Mg, 0.05 percent of Cu, 0.15 percent of Fe, 0.05 percent of other inevitable trace elements and the balance of Al. An aluminum product produced from the aluminum alloy is free of obvious surface recess and wider in hardness range, and has a smooth surface.

Description

technical field [0001] The invention relates to the field of material engineering, in particular to a novel aluminum alloy improved on the basis of 6063 aluminum alloy. Background technique [0002] 6063 aluminum alloy is widely used in the frame of aluminum doors, windows and curtain walls in buildings. In order to ensure that doors, windows and curtain walls have high wind pressure resistance, assembly performance, corrosion resistance and decorative performance, the requirements for the comprehensive performance of aluminum alloy profiles are much higher than those of industrial Profile standard. The main alloy composition of 6063 aluminum alloy is: Si: 0.35-0.38%, Mg: 0.5-0.54%, and other trace elements 0.05%. Although 6063 aluminum alloy has the above-mentioned good properties, there are also some defects, such as The surface finish of aluminum produced by 6063 aluminum alloy is not high, only 3.2um rough, easy to be pitted, so that serious surface scratches occur, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08
CPCC22C21/08
Inventor 王平王海军顾慧丽顾洁云
Owner 江苏礼德铝业有限公司
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