CN106636813A - Corrosion-resistant aluminum alloy and preparation method thereof - Google Patents
Corrosion-resistant aluminum alloy and preparation method thereof Download PDFInfo
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- CN106636813A CN106636813A CN201611141216.5A CN201611141216A CN106636813A CN 106636813 A CN106636813 A CN 106636813A CN 201611141216 A CN201611141216 A CN 201611141216A CN 106636813 A CN106636813 A CN 106636813A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
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Abstract
The invention discloses a corrosion-resistant aluminum alloy. The corrosion-resistant aluminum alloy is prepared from the following raw materials in parts by weight: 0.1-0.2 part of Fe, 2-4 parts of Cu, 0.08-0.2 part of Mn, 1-2 parts of Zn, 0.01-0.02 part of Ti, 2-3 parts of Si, 2-4 parts of Mg, 0.3-0.8 part of Sr, 0.5-2 parts of Cr, 0.5-0.8 part of B, 0.01-0.05 part of Yb, 0.02-0.09 part of Lu and 20-25 parts of Al. The invention also discloses a preparation method of the corrosion-resistant aluminum alloy. The corrosion-resistant aluminum alloy is reasonable in setting of composition, proportioning and process parameters, thereby effectively improving the mechanical property of the aluminum alloy and improving the corrosion resistance of the aluminum alloy; and by adding the heavy rare earth elements to purify the impurities in the molten aluminum alloy, the surface tension of the molten aluminum alloy can be reduced, the harm of metal and nonmetal impurity elements is eliminated, and the heat-conducting property and mechanical property of the aluminum alloy are enhanced, thereby improving the corrosion resistance of the aluminum alloy.
Description
Technical field
The present invention relates to field of aluminum alloy manufacturing, specifically a kind of corrosion resistant aluminum alloy and preparation method thereof.
Background technology
Aluminium is a kind of light metal of density low weight, and its heat-conductive characteristic is good, and easily moulding, is adding other gold
Category is obtained after aluminium alloy has very outstanding mechanical strength.Aluminium alloy is most widely used class non-ferrous metal knot in industry
Structure material, widely applies in Aeronautics and Astronautics, automobile, machine-building, ship and chemical industry.The at full speed of industrial economy is sent out
Exhibition, increasing to the demand of Welded structural member, the Research on Weldability for enabling aluminum alloy to is also therewith deeply.Current aluminium alloy
It is using most alloys.Aluminium alloy density is low, but intensity is higher, and near or above high-quality steel, plasticity is good, can be processed into each
Section bar is planted, with excellent electric conductivity, thermal conductivity, is industrially widely used, usage amount is only second to steel.Just because of these features,
Aluminum alloy materials are gradually shown up prominently in radiator field.And more people also begin to select aluminium alloy radiator.Aluminium is closed
Although gold is with higher thermal conductivity but aluminium alloy its corrosion resistance under some dark moist environment is poor, especially does harm to
Be afraid of the corrosion of alkaline water, the caliduct of aluminium alloy is easy to water leakage situation occur in the environment of long-term water logging.
The content of the invention
It is an object of the invention to provide a kind of corrosion resistant aluminum alloy and preparation method thereof, to solve above-mentioned background technology
The problem of middle proposition.
For achieving the above object, the present invention provides following technical scheme：
A kind of corrosion resistant aluminum alloy, is formed by following raw material according to parts by weight configuration：Fe 0.1-0.2 parts, Cu 2-4
Part, Mn 0.08-0.2 parts, Zn 1-2 parts, Ti 0.01-0.02 parts, Si 2-3 parts, Mg 2-4 parts, Sr 0.3-0.8 parts, Cr
0.5-2 parts, B 0.5-0.8 parts, Yb 0.01-0.05 parts, Lu 0.02-0.09 parts and Al 20-25 parts.
As further scheme of the invention：Corrosion resistant aluminum alloy is formed by following raw material according to parts by weight configuration：
Fe0.15 parts, 3 parts of Cu, 0.1 part of Mn, 1.5 parts of Zn, 0.02 part of Ti, 2.5 parts of Si, 3 parts of Mg, 0.5 part of Sr, 1 part of Cr, B
0.8 part, 0.03 part of Yb, 0.05 part and Al 22 parts of Lu.
A kind of preparation method of corrosion resistant aluminum alloy, its key step is as follows：
The first step：Proportioning as described in claim 1 takes the copper of 2-4 parts and the chromium of 0.5-2 parts is put in smelting furnace, continues
Heat up, melt to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 600-650 DEG C；
3rd step：Then melt to second step again sequentially add in the aluminium liquid that obtains silicon, magnesium, titanium and heavy rare earth element ytterbium and
Lutetium；
4th step：770-780 DEG C is warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, insulation
20-30 minutes, then raise temperature to 800 DEG C -900 DEG C and refined, stir 20-30 minutes, then skimmed, deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 660-680 DEG C, press-in is preheated to 200-250 DEG C of mould
Inside cast.
Compared with prior art, the invention has the beneficial effects as follows：
The aluminium alloy component, the setting with when technological parameter of this corrosion resistance rationally, can effectively improve the machine of aluminium alloy
Tool performance；Improve the corrosion resistance of aluminium alloy；The aluminium alloy of this corrosion resistance can be to aluminium alloy by addition heavy rare earth element
Impurity in liquid is purified, and can reduce the surface tension of aluminum alloy melt, eliminates the harm of metal and nonmetallic inclusion element,
Strengthen the heat conductivility and mechanical property of aluminium alloy, so as to improve the corrosion resistance of aluminium alloy；The aluminium alloy of this corrosion resistance adds
Plus the zinc that chemical property is active, make surface in zinc air at normal temperatures form one layer of thin and compact basic zinc carbonate film, can
To prevent further oxidation, zinc and magnesium are added in aluminium alloy can strengthen the corrosion resistance of alloy.
Specific embodiment
Technical scheme is described in more detail with reference to specific embodiment.
Embodiment 1
A kind of corrosion resistant aluminum alloy, is formed by following raw material according to parts by weight configuration：0.1 part of Fe, 2 parts of Cu, Mn
0.08 part, 1 part of Zn, 0.01 part of Ti, 2 parts of Si, 2 parts of Mg, 0.3 part of Sr, 0.5 part of Cr, 0.5 part of B, 0.01 part of Yb, Lu
0.02 part and 20 parts of Al.
A kind of preparation method of corrosion resistant aluminum alloy, its key step is as follows：
The first step：Proportioning as described in claim 1 takes 2 parts of copper and 0.5 part of chromium is put in smelting furnace, continues to rise
Temperature, melts to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 600 DEG C；
3rd step：Then melt to second step again sequentially add in the aluminium liquid that obtains silicon, magnesium, titanium and heavy rare earth element ytterbium and
Lutetium；
4th step：770 DEG C are warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, be incubated 20 points
Clock, then raises temperature to 800 DEG C and is refined, and stirs 20 minutes, is then skimmed, is deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 660 DEG C, press-in is preheated in 200 DEG C of mould is poured
Casting.
Embodiment 2
A kind of corrosion resistant aluminum alloy, is formed by following raw material according to parts by weight configuration：0.12 part of Fe, 3 parts of Cu, Mn
0.1 part, 1.2 parts of Zn, 0.03 part of Ti, 2.5 parts of Si, 2.5 parts of Mg, 0.4 part of Sr, 0.8 part of Cr, 0.6 part of B, Yb 0.03
Part, 0.05 part and Al 22 parts of Lu.
A kind of preparation method of corrosion resistant aluminum alloy, its key step is as follows：
The first step：Proportioning as described in claim 1 takes 3 parts of copper and 0.8 part of chromium is put in smelting furnace, continues to rise
Temperature, melts to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 630 DEG C；
3rd step：Then melt to second step again sequentially add in the aluminium liquid that obtains silicon, magnesium, titanium and heavy rare earth element ytterbium and
Lutetium；
4th step：750 DEG C are warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, be incubated 20 points
Clock, then raises temperature to 850 DEG C and is refined, and stirs 25 minutes, is then skimmed, is deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 660 DEG C, press-in is preheated in 220 DEG C of mould is poured
Casting.
Embodiment 3
A kind of corrosion resistant aluminum alloy, is formed by following raw material according to parts by weight configuration：0.16 part of Fe, 2.9 parts of Cu,
0.18 part of Mn, 1.8 parts of Zn, 0.01 part of Ti, 2.7 parts of Si, 2.5 parts of Mg, 0.6 part of Sr, 1.5 parts of Cr, 0.7 part of B, Yb
0.04 part, 0.06 part and Al 24 parts of Lu.
A kind of preparation method of corrosion resistant aluminum alloy, its key step is as follows：
The first step：Proportioning as described in claim 1 takes 2.9 parts of copper and 1.5 parts of chromium is put in smelting furnace, continues to rise
Temperature, melts to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 650 DEG C；
3rd step：Then melt to second step again sequentially add in the aluminium liquid that obtains silicon, magnesium, titanium and heavy rare earth element ytterbium and
Lutetium；
4th step：780 DEG C are warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, be incubated 30 points
Clock, then raises temperature to 900 DEG C and is refined, and stirs 30 minutes, is then skimmed, is deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 680 DEG C, press-in is preheated in 250 DEG C of mould is poured
Casting.
Embodiment 4
A kind of corrosion resistant aluminum alloy, is formed by following raw material according to parts by weight configuration：0.18 part of Fe, 3.5 parts of Cu,
0.1 part of Mn, 1.9 parts of Zn, 0.02 part of Ti, 2.6 parts of Si, 3.5 parts of Mg, 0.6 part of Sr, 1.5 parts of Cr, 0.7 part of B, Yb
0.04 part, 0.06 part and Al 24 parts of Lu.
A kind of preparation method of corrosion resistant aluminum alloy, its key step is as follows：
The first step：Proportioning as described in claim 1 takes 3.5 parts of copper and 1.5 parts of chromium is put in smelting furnace, continues to rise
Temperature, melts to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 645 DEG C；
3rd step：Then melt to second step again sequentially add in the aluminium liquid that obtains silicon, magnesium, titanium and heavy rare earth element ytterbium and
Lutetium；
4th step：775 DEG C are warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, be incubated 30 points
Clock, then raises temperature to 900 DEG C and is refined, and stirs 30 minutes, is then skimmed, is deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 680 DEG C, press-in is preheated in 250 DEG C of mould is poured
Casting.
Embodiment 5
A kind of corrosion resistant aluminum alloy, is formed by following raw material according to parts by weight configuration：0.2 part of Fe, 4 parts of Cu, Mn
0.2 part, 2 parts of Zn, 0.02 part of Ti, 3 parts of Si, 4 parts of Mg, 0.8 part of Sr, 2 parts of Cr, 0.8 part of B, 0.05 part of Yb, Lu
0.09 part and 25 parts of Al.
A kind of preparation method of corrosion resistant aluminum alloy, its key step is as follows：
The first step：Proportioning as described in claim 1 takes 4 parts of copper and 2 parts of chromium is put in smelting furnace, continues to heat up,
Melt to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 650 DEG C；
3rd step：Then melt to second step again sequentially add in the aluminium liquid that obtains silicon, magnesium, titanium and heavy rare earth element ytterbium and
Lutetium；
4th step：780 DEG C are warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, be incubated 30 points
Clock, then raises temperature to 900 DEG C and is refined, and stirs 30 minutes, is then skimmed, is deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 680 DEG C, press-in is preheated in 250 DEG C of mould is poured
Casting.
The better embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can be with the premise of without departing from present inventive concept
Various changes can be made.
Claims (3)
1. a kind of corrosion resistant aluminum alloy, it is characterised in that formed according to parts by weight configuration by following raw material：Fe 0.1-0.2
Part, Cu 2-4 parts, Mn 0.08-0.2 parts, Zn 1-2 parts, Ti 0.01-0.02 parts, Si 2-3 parts, Mg 2-4 parts, Sr 0.3-
0.8 part, Cr 0.5-2 parts, B 0.5-0.8 parts, Yb 0.01-0.05 parts, Lu 0.02-0.09 parts and Al 20-25 parts.
2. corrosion resistant aluminum alloy according to claim 1 and preparation method thereof, it is characterised in that by following raw material according to
Parts by weight configuration is formed：0.15 part of Fe, 3 parts of Cu, 0.1 part of Mn, 1.5 parts of Zn, 0.02 part of Ti, 2.5 parts of Si, Mg 3
Part, 0.5 part of Sr, 1 part of Cr, 0.8 part of B, 0.03 part of Yb, 0.05 part and Al 22 parts of Lu.
3. the preparation method of a kind of corrosion resistant aluminum alloy as described in claim 1-2 is arbitrary and preparation method thereof, its feature
It is that its key step is as follows：
The first step：Proportioning as described in claim 1 takes the copper of 2-4 parts and the chromium of 0.5-2 parts is put in smelting furnace, continues to rise
Temperature, melts to copper and chromium；
Second step：Then aluminium liquid is will melt into, fusion temperature is 600-650 DEG C；
3rd step：Then melt in the aluminium liquid for obtaining to second step again and sequentially add silicon, magnesium, titanium and heavy rare earth element ytterbium and lutetium；
4th step：770-780 DEG C is warmed up to, above-mentioned alloy is melted and then added other raw materials, remove scum silica frost, be incubated 20-
30 minutes, then raise temperature to 800 DEG C -900 DEG C and refined, stir 20-30 minutes, then skimmed, deaerated；
5th step：After the melt that 4th step is obtained is cooled to into 660-680 DEG C, press-in is preheated in 200-250 DEG C of mould
Row casting.
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| CN201611141216.5A CN106636813A (en) | 2016-12-12 | 2016-12-12 | Corrosion-resistant aluminum alloy and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287478A (en) * | 2017-05-26 | 2017-10-24 | 温州兴锐成科技有限公司 | A kind of aluminium Y-tooth line and preparation method thereof |
| CN112575234A (en) * | 2020-11-24 | 2021-03-30 | 南通众福新材料科技有限公司 | High-thermal-conductivity, high-toughness and corrosion-resistant aluminum alloy for 5G mobile phone and manufacturing method thereof |
| CN114134377A (en) * | 2021-12-08 | 2022-03-04 | 无锡市世达精密焊管制造有限公司 | Aluminum alloy plate for heat exchanger and preparation method thereof |
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| CN114134377A (en) * | 2021-12-08 | 2022-03-04 | 无锡市世达精密焊管制造有限公司 | Aluminum alloy plate for heat exchanger and preparation method thereof |
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Application publication date: 20170510 |