CN105002405A - Wear-resisting aluminum profile containing elements of chromium and tungsten - Google Patents
Wear-resisting aluminum profile containing elements of chromium and tungsten Download PDFInfo
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- CN105002405A CN105002405A CN201510525469.1A CN201510525469A CN105002405A CN 105002405 A CN105002405 A CN 105002405A CN 201510525469 A CN201510525469 A CN 201510525469A CN 105002405 A CN105002405 A CN 105002405A
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Abstract
The invention discloses a wear-resisting aluminum profile containing elements of chromium and tungsten. The wear-resisting aluminum profile contains the following components in percentage by mass: 4 to 8 percent of chromium, 1 to 2 percent of copper, 0.2 to 0.4 percent of magnesium, 0.4 to 0.8 percent of zinc, 1 to 2 percent of molybdenum, 0.2 to 0.3 percent of vanadium, 0.02 to 0.03 percent of bismuth, 0.5 to 0.6 percent of silicon, 0.2 to 0.4 percent of tin, 0.5 to 1 percent of iron and the balance of aluminum and impurities. According to the aluminum alloy provided by the invention, through adding the elements of the chromium, the vanadium, the molybdenum, the tungsten and the like, the mechanical property of the alloy is greatly improved, and the profile has that advantages of high strength, good toughness, super wear resistance, good corrosion resistance and the like.
Description
Technical field
The present invention relates to a kind of aluminium section bar, be specifically related to a kind of wear-resisting aluminium section bar containing chromium W elements.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structured material in industry, widely applies in Aeronautics and Astronautics, automobile, machinofacture, boats and ships and chemical industry.The density of aluminium alloy is low, but its strength ratio is higher, close to or exceed high-quality steel, plasticity is good, can be processed into various section bar, has excellent electroconductibility, thermal conductivity and corrosion stability, industrially widely uses, and usage quantity is only second to steel.But, mostly be exposed at present the intensity of outdoor aluminum product, wear resisting property, corrosion resistance be not all very desirable, especially the aluminum door and window used in people's daily life, the aluminum railing, handrail etc. of public place to be in all the time in the environment of exposing to the weather and drenching with rain and often to run into shock, thus the situation of fracture damage is very serious, greatly shortens its work-ing life.
Summary of the invention
The object of the invention is to the some shortcomings for existing in prior art, provide a kind of improve alloy mechanical property by adding the elements such as chromium, vanadium, molybdenum high strength, good toughness, super abrasive aluminium alloy.
To achieve these goals, present invention employs following technical scheme:
A kind of wear-resisting aluminium section bar containing chromium W elements, by mass percentage, should contain containing the wear-resisting aluminium section bar of chromium W elements: chromium 4 ~ 8%, tungsten 3 ~ 5%, copper 1 ~ 2%, magnesium 0.2 ~ 0.4%, zinc 0.4 ~ 0.8%, molybdenum 1 ~ 2%, vanadium 0.2 ~ 0.3%, bismuth 0.02 ~ 0.03%, silicon 0.5 ~ 0.6%, tin 0.2 ~ 0.4%, iron 0.5 ~ 1%, surplus are aluminium and impurity.
Preferred further to technical scheme of the present invention, by mass percentage, should contain containing the wear-resisting aluminium section bar of chromium W elements: chromium 6%, tungsten 4%, copper 1%, magnesium 0.3%, zinc 0.5%, molybdenum 1.5%, vanadium 0.3%, bismuth 0.02%, silicon 0.6%, tin 0.3%, iron 0.8%, surplus are aluminium and impurity.
Further illustrate, described impurity comprises carbon, phosphorus, the sulphur of trace.
Aluminium section bar of the present invention adopts conventional production process: raw material is carried out just refining by (1); (2) refining; (3) cooling forming; (4) rolling; (5) quench; (6) tempering; (7) cool.
Carry out some to the performance of some component elements that the present invention adopts below to introduce:
Chromium (Cr), chromium can improve hardenability and the tempering resistance of aluminium alloy effectively, improve the intensity of aluminium alloy, and chromium can also reduce the activity of carbon, improve the leaching carbon of aluminium alloy, and form fine carbide, the aluminium material surface decarburization in heating, rolling and heat treatment process and greying tendency can be reduced, improve toughness and wearability; But, during chromium too high levels, form the carbide of chromium on the contrary in a large number, worsen bullet subtractive energy and the toughness of aluminium alloy.Therefore, in the present invention, the content controlling Chromium in Aluminum Alloy is 4 ~ 8%(weight percent), most preferred content is 6%.
Tungsten (W), the physical features of tungsten is very strong, and in alloy, add a small amount of tungsten can greatly increase heavy alloyed intensity and wear resisting property.In the present invention, the content controlling tungsten in aluminium alloy is 3% ~ 5%, and optimum content is 4%.
Molybdenum (Mo), molybdenum is the key element of aluminum alloy corrosion resistant; Therefore, the performance of molybdenum additives on aluminium alloy has very large impact, and a small amount of molybdenum is added among aluminium alloy, and aluminium alloy can be made to have very excellent performance, greatly can increase the wear resisting property of aluminium alloy, increase the service life.Wear-resisting aluminium section bar containing chromium W elements can improve aluminium hardness, intensity and toughness containing molybdenum, and the good weldability of tool and corrosion resistance.After foundry goods adds the molybdenum of 1% ~ 2%, will greatly improve tension, bending resistance and fatigue resistance, also can improve the homogeneity of casting structure, this especially seems important to massive casting, these foundry goods are widely used in automobile making, pressure pipeline and mold etc., and in processing industry, molybdenum is used more extensive.Utilize thermal expansivity little, heat conduction be strong, molybdenum that high strength is good or molybdenum base alloy, die life significantly extends; Add the performance that alloying element just can improve them in Xiang Tie, aluminium and other metal, as hardenability, under intensity, erosion resistance and resistance to abrasive property.But during the too high levels of molybdenum, then worsen the plasticity of aluminium alloy, toughness and processing characteristics.Therefore, in the present invention, the content that contriver controls molybdenum in aluminium alloy is 1 ~ 2%(weight percent), optimum optional 1.5%.
Vanadium (V), has physicals and the chemical property of numerous excellence, and thus the purposes of vanadium is very extensive, has the title of metal " VITAMIN ".In aluminium alloy, add vanadium, can grain coarsening temperature be improved, thus play the intensity, toughness and the wear resistance that increase aluminium alloy.In the present invention, the content controlling vanadium in aluminium alloy is 0.2% ~ 0.3%, and optimum content is 0.3%.
Advantage of the present invention:
Wear-resisting aluminium section bar of the present invention is by adjusting composition and the proportioning of the composition of alloy, not only with the addition of the elements such as copper, magnesium, silicon, zinc, also added the elements such as chromium, tungsten, vanadium, molybdenum, pass through high melt, stable strengthening phase can be formed, greatly improve mechanical property and the welding property of aluminium section bar; Intensity of aluminum alloy of the present invention is higher, more wear-resisting, and work-ing life is also longer.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1:
A kind of wear-resisting aluminium section bar containing chromium W elements, by mass percentage, this wear-resisting aluminium section bar contains: chromium 4%, tungsten 3%, copper 1%, and magnesium 0.2%, zinc 0.4%, molybdenum 1%, vanadium 0.2%, bismuth 0.02%, silicon 0.5%, tin 0.2%, iron 0.5%, surplus are aluminium and impurity (comprising the carbon, phosphorus, sulphur etc. of trace).
Embodiment 2:
A kind of wear-resisting aluminium section bar containing chromium W elements, by mass percentage, this wear-resisting aluminium section bar contains: chromium 6%, tungsten 4%, copper 1%, magnesium 0.3%, zinc 0.5%, molybdenum 1.5%, vanadium 0.3%, bismuth 0.02%, silicon 0.6%, tin 0.3%, iron 0.8%, surplus are aluminium and impurity (comprising the carbon, phosphorus, sulphur etc. of trace).
Embodiment 3:
A kind of wear-resisting aluminium section bar containing chromium W elements, by mass percentage, this wear-resisting aluminium section bar contains: chromium 8%, tungsten 5%, copper 2%, and magnesium 0.4%, zinc 0.8%, molybdenum 2%, vanadium 0.3%, bismuth 0.03%, silicon 0.6%, tin 0.4%, iron 1%, surplus are aluminium and impurity (comprising the carbon, phosphorus, sulphur etc. of trace).
Embodiment 4:
A kind of wear-resisting aluminium section bar containing chromium W elements, by mass percentage, this wear-resisting aluminium section bar contains: chromium 4%, tungsten 3.5%, copper 2%, and magnesium 0.2%, zinc 0.4%, molybdenum 2%, vanadium 0.3%, bismuth 0.02%, silicon 0.6%, tin 0.3%, iron 0.6%, surplus are aluminium and impurity (comprising the carbon, phosphorus, sulphur etc. of trace).
Embodiment 5:
A kind of wear-resisting aluminium section bar containing chromium W elements, by mass percentage, this wear-resisting aluminium section bar contains: chromium 5%, tungsten 4.5%, copper 1.5%, and magnesium 0.3%, zinc 0.4%, molybdenum 1%, vanadium 0.25%, bismuth 0.03%, silicon 0.5%, tin 0.4%, iron 0.9%, surplus are aluminium and impurity (comprising the carbon, phosphorus, sulphur etc. of trace).
Claims (3)
1. the wear-resisting aluminium section bar containing chromium W elements, it is characterized in that, by mass percentage, should contain containing the wear-resisting aluminium section bar of chromium W elements: chromium 4 ~ 8%, tungsten 3 ~ 5%, copper 1 ~ 2%, magnesium 0.2 ~ 0.4%, zinc 0.4 ~ 0.8%, molybdenum 1 ~ 2%, vanadium 0.2 ~ 0.3%, bismuth 0.02 ~ 0.03%, silicon 0.5 ~ 0.6%, tin 0.2 ~ 0.4%, iron 0.5 ~ 1%, surplus are aluminium and impurity.
2. the wear-resisting aluminium section bar containing chromium W elements according to claim 1, it is characterized in that, by mass percentage, should contain containing the wear-resisting aluminium section bar of chromium W elements: chromium 6%, tungsten 4%, copper 1%, magnesium 0.3%, zinc 0.5%, molybdenum 1.5%, vanadium 0.3%, bismuth 0.02%, silicon 0.6%, tin 0.3%, iron 0.8%, surplus are aluminium and impurity.
3. the wear-resisting aluminium section bar containing chromium W elements according to claim 1 and 2, is characterized in that, described impurity comprises carbon, phosphorus, the sulphur of trace.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510525469.1A CN105002405A (en) | 2015-08-25 | 2015-08-25 | Wear-resisting aluminum profile containing elements of chromium and tungsten |
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| CN201510525469.1A CN105002405A (en) | 2015-08-25 | 2015-08-25 | Wear-resisting aluminum profile containing elements of chromium and tungsten |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267821A (en) * | 2017-05-09 | 2017-10-20 | 昆山湘北精密金属有限公司 | A kind of knife handle weld jig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267821A (en) * | 2017-05-09 | 2017-10-20 | 昆山湘北精密金属有限公司 | A kind of knife handle weld jig |
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Application publication date: 20151028 |