CN102876956A - Aluminum alloy plate with high strength - Google Patents
Aluminum alloy plate with high strength Download PDFInfo
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- CN102876956A CN102876956A CN 201210321953 CN201210321953A CN102876956A CN 102876956 A CN102876956 A CN 102876956A CN 201210321953 CN201210321953 CN 201210321953 CN 201210321953 A CN201210321953 A CN 201210321953A CN 102876956 A CN102876956 A CN 102876956A
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Abstract
The invention discloses an aluminum alloy plate with high strength. The aluminum alloy plate comprises elements in percentage by weight as follows: 33.8-40.9 percent of aluminum, 7-8 percent of silicon, 4.6-5 percent of copper, 10.8-12.7 percent of zinc, 6.3-7.9 percent of magnesium, 30.3-32.3 percent of gold and 0.1-0.3 percent of other impurities. The aluminum alloy plate provided by the invention has the beneficial effects of high strength, good heat resistance and high corrosion resistance.
Description
Technical field
The present invention relates to a kind of aluminium alloy, be specifically related to a kind of high-intensity aluminium alloy plate.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structured material in the industry, in Aeronautics and Astronautics, automobile, machinofacture, boats and ships and chemical industry, widely apply, along with the in recent years develop rapidly of science and technology and industrial economy, demand to the Welded structural part is increasing, makes the Research on Weldability of aluminium alloy also thereupon deeply.The widespread use of aluminium alloy has promoted the development of aluminum alloy solder technology, and the Application Areas of aluminium alloy has been expanded again in the simultaneously development of welding technique, so the welding technique of aluminium alloy is just becoming one of focus of research.
The density of fine aluminium is little, and (aluminium is face-centred cubic structure for ρ=2.7g/cm3), approximately be 1/3 of iron, fusing point low (660 ℃), therefore have very high plasticity (δ: 32 ~ 40%, ψ: 70 ~ 90%), be easy to processing, can be made into various section bars, sheet material.Corrosion resistance is good; But the intensity of fine aluminium is very low, and as-annealed condition σ b value is about 8kgf/mm2, therefore should not make the structure material.By long-term production practice and scientific experiment, people come reinforced aluminum to add the methods such as alloying element and utilization thermal treatment gradually, and this has just obtained a series of aluminium alloy.The alloy that adds certain element formation can also have higher intensity in the advantages such as maintenance fine aluminium light weight, σ b value can reach 24～60kgf/mm2 respectively.Like this so that its " specific tenacity " (ratio σ b/ ρ of intensity and proportion) surpasses a lot of steel alloys, become desirable structured material, be widely used in the aspects such as machinofacture, Transport Machinery, power machine and aircraft industry, the fuselage of aircraft, covering, pneumatic plant etc. are often with the aluminium alloy manufacturing, to alleviate deadweight.Adopt aluminium alloy to replace the welding of steel plate materials, structural weight can alleviate more than 50%.Aluminium alloy density is low, but strength ratio is higher, approaches or surpasses the high-quality steel, and plasticity is good, can be processed into various section bars, has good electroconductibility, thermal conductivity and corrosion stability, industrial being widely used, and usage quantity is only second to steel.
Summary of the invention
The object of the present invention is to provide and make that the high-intensity aluminium alloy plate that makes has that intensity is high, a kind of high-intensity aluminium alloy plate of good heat resistance and the high effect of solidity to corrosion.
Technical scheme of the present invention is: a kind of high-intensity aluminium alloy plate, comprise the elements such as aluminium, silicon, copper, zinc, magnesium, gold and other impurity, each element wt proportioning is that aluminium accounts for 33.8%-40.9%, silicon accounts for 7%-8%, copper accounts for 4.6%-5%, and zinc accounts for 10.8%-12.7%, and magnesium accounts for 6.3%-7.9%, gold accounts for 30.3%-32.3%, and other impurity account for 0.1%-0.3%.
In a preferred embodiment of the present invention, described other impurity comprise steel and iron.
In a preferred embodiment of the present invention, each composition weight proportion of described high-intensity aluminium alloy plate is that aluminium accounts for 36.9%, and silicon accounts for 7.5%, and copper accounts for 4.8%, and zinc accounts for 11.8%, and magnesium accounts for 7.2%, and gold accounts for 31.6%, and other impurity account for 0.2%.
A kind of high-intensity aluminium alloy plate of the present invention has that intensity is high, good heat resistance and a high effect of solidity to corrosion.
Embodiment
Below in conjunction with preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
In one embodiment, a kind of high-intensity aluminium alloy plate, comprise the elements such as aluminium, silicon, copper, zinc, magnesium, gold and other impurity, each element wt proportioning is that aluminium accounts for 33.8%-40.9%, and silicon accounts for 7%-8%, copper accounts for 4.6%-5%, zinc accounts for 10.8%-12.7%, and magnesium accounts for 6.3%-7.9%, and gold accounts for 30.3%-32.3%, other impurity account for 0.1%-0.3%, and described other impurity comprise steel and iron.
Further specify, each composition weight proportion of described high-intensity aluminium alloy plate is that aluminium accounts for 36.9%, and silicon accounts for 7.5%, and copper accounts for 4.8%, and zinc accounts for 11.8%, and magnesium accounts for 7.2%, and gold accounts for 31.6%, and other impurity account for 0.2%.
Can debug according to different ratios according to different demands, thereby reach different results of use, aluminium alloy density is different and different according to the alloying element that adds, generally between 2.5-2.88, iron and steel density is divided into cast iron and steel, between 6.6-7.7, the density of steel is different and different according to the alloying element that adds, generally between 7.8-8.7 greatly for general cast iron.Aluminium is by atomic building, and the aluminium atom combines with the aluminium atom and forms the chemical combination key; The aluminium atom combines with other atoms and forms the chemical combination key for aluminium alloy, the latter's chemical combination key is than the former more difficult destruction, the latter need to absorb the chemical combination key that more heat is broken the aluminium alloy atom, so fusing point is just high, analyze mutually from alloy strengthening, contain S phase and the alloys mutually such as CuAl2, generally adopt natural aging, and need at high temperature to use or when putting forward heavy alloyed yield strength, just need to adopt artificial aging to strengthen.Such as LY11 and LY12, the following natural aging of 40 degree can obtain high intensity and solidity to corrosion, then needs people's timeliness for the LY12 of the above work of 150 degree and the LY6 rivet of 125-250 degree work with alloy.Containing main strengthening phase is MgSi, and the alloy of the T phase of MgZn2 only has the artificial aging of employing to strengthen, and just can reach its maximum intensity.For general aluminium alloy, during natural aging, yield strength is slightly low and solidity to corrosion is better, and when adopting people's timeliness, the alloy yield strength is higher and elongation and solidity to corrosion all reduce.Enter LC4 for aluminium-zinc-magnesium-copper series alloy then opposite, when adopting artificial aging, alloy corrosion resistance is better than natural aging.The invention provides a kind of high-intensity aluminium alloy plate, have that intensity is high, good heat resistance and a high effect of solidity to corrosion.
The specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (3)
1. high-intensity aluminium alloy plate, it is characterized in that: comprise the elements such as aluminium, silicon, copper, zinc, magnesium, gold and other impurity, each element wt proportioning is that aluminium accounts for 33.8%-40.9%, silicon accounts for 7%-8%, copper accounts for 4.6%-5%, and zinc accounts for 10.8%-12.7%, and magnesium accounts for 6.3%-7.9%, gold accounts for 30.3%-32.3%, and other impurity account for 0.1%-0.3%.
2. high-intensity aluminium alloy plate according to claim 1, it is characterized in that: described other impurity comprise steel and iron.
3. high-intensity aluminium alloy plate according to claim 1, it is characterized in that: each composition weight proportion of described high-intensity aluminium alloy plate is that aluminium accounts for 36.9%, and silicon accounts for 7.5%, and copper accounts for 4.8%, and zinc accounts for 11.8%, and magnesium accounts for 7.2%, and gold accounts for 31.6%, and other impurity account for 0.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210321953 CN102876956A (en) | 2012-09-04 | 2012-09-04 | Aluminum alloy plate with high strength |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210321953 CN102876956A (en) | 2012-09-04 | 2012-09-04 | Aluminum alloy plate with high strength |
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| CN102876956A true CN102876956A (en) | 2013-01-16 |
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| CN 201210321953 Pending CN102876956A (en) | 2012-09-04 | 2012-09-04 | Aluminum alloy plate with high strength |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048381A (en) * | 2016-07-15 | 2016-10-26 | 南通纺都置业有限公司 | Aluminum alloy |
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2012
- 2012-09-04 CN CN 201210321953 patent/CN102876956A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048381A (en) * | 2016-07-15 | 2016-10-26 | 南通纺都置业有限公司 | Aluminum alloy |
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Application publication date: 20130116 |