CN104313405A - Preparation method of corrosion-resistant aluminum alloy - Google Patents
Preparation method of corrosion-resistant aluminum alloy Download PDFInfo
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- CN104313405A CN104313405A CN201410543490.XA CN201410543490A CN104313405A CN 104313405 A CN104313405 A CN 104313405A CN 201410543490 A CN201410543490 A CN 201410543490A CN 104313405 A CN104313405 A CN 104313405A
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- aluminum alloy
- preparation
- aluminium
- resistant aluminum
- zirconium
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Classifications
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Abstract
The invention relates to a preparation method of a corrosion-resistant aluminum alloy. The corrosion-resistant aluminum alloy comprises the following components in percentage by weight: 1.8-2.0% of silicon, 0.5-1.0% of manganese, 0.8-1.2% of copper, 0.05-0.1% of titanium, 0.03-0.05% of niobium, 0.3-0.35% of vanadium, 0.1-0.2% of manganese, 0.01-0.03% of neodymium, 0.001-0.003% of bismuth, 0.3-0.5% of magnesium, 0.003-0.005% of boron, 0.1-0.3% of nickel, 0.1-0.3% of chromium, 0.1-0.3% of zirconium, 0.05-0.08% of tin, 0.001-0.003% of lanthanum and the balance of aluminum. In the technical scheme, by adding titanium, zirconium and niobium elements into aluminum element, grains of an aluminum alloy structure are fine and uniform; and by adding boron, nickel, vanadium, tin and copper elements, the corrosion resistance of the aluminum alloy is improved.
Description
Technical field
The invention belongs to field of aluminum alloys, refer to corrosion resistant aluminum alloy of a kind of automobile and preparation method thereof especially.
Background technology
The heat exchangers such as scatterer used on automobile, condenser, existing have used lightweight and the good aluminium alloy of heat conduction efficiency instead of the valuable and Copper and its alloy material that density is large.And in motor racing process, heat exchanger can be subject to very strong vibrations, but heat exchanger is in order to improve radiating effect, and what all adopt is that thin sheet fabrication forms, and this just requires that the aluminium alloy manufacturing heat exchanger has high strength and toughness.
In use, because outside is different with the environment that medial surface is right, in order to improve the Corrosion Protection of heat exchanger, to heat exchanger the existing technology used all superpose sacrifice corrosion-resistant coating in the tube wall inner side and outer side of heat exchanger.For the sacrifice corrosion-resistant coating of inner side, because finite thickness, after this corrosion-resistant coating is corroded, will directly in the face of aluminum alloy materials, therefore, in order to improve the work-ing life of heat exchanger, the corrosion resistance nature improving aluminum alloy materials is best selection.
Summary of the invention
The object of this invention is to provide a kind of corrosion resistant aluminum alloy material of car heat exchanger, by the technical program, the corrosion resistance nature of heat exchanger can be improved.
The present invention is achieved by the following technical solutions:
A kind of corrosion resistant aluminum alloy preparation method,
Batching;
Melting, the aluminium of other material and remainder is added after the aluminium of the gun-metal in material, nickel and chromium and half quantity is carried out being smelted into liquid, and be incubated 0.5-1 hour after being warmed up to 750 ± 20 DEG C, with at least 30 DEG C/min of coolings 100 DEG C, be incubated 0.2-0.5 hour after being warming up to 750 ± 20 DEG C again, then carry out constant temperature 700 DEG C cast and cool to 130-150 DEG C become aluminum alloy ingot;
Quenching, carries out being rolled into finished product after aluminum alloy ingot is incubated 2-4 hour in 550 ± 20 DEG C of quenching furnances.
Described batching is, be that the chromium of the boron of the bismuth of the manganese of the niobium of the copper of the silicon of 1.8-2.0%, the manganese of 0.5-1.0%, 0.8-1.2%, the titanium of 0.05-0.1%, 0.03-0.05%, the vanadium of 0.3-0.35%, 0.1-0.2%, the neodymium of 0.01-0.03%, 0.001-0.003%, the magnesium of 0.3-0.5%, 0.003-0.005%, the nickel of 0.1-0.3%, 0.1-0.3%, the zirconium of 0.1-0.3%, the tin of 0.05-0.08%, the lanthanum of 0.001-0.003% and surplus are aluminium by weight percentage.
Described temperature-fall period divides two stages, and first stage is for be at the uniform velocity cooled to 400-430 DEG C, and cooling rate is 25-30 DEG C/min; Second stage be fast cooling to 130-150 DEG C, speed is 2 DEG C/sec.
Described tin and copper add in gun-metal mode.
Described titanium, niobium, vanadium, zirconium, lanthanum are add in the mode of titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy respectively.
The present invention's beneficial effect is compared with the existing technology:
In the technical program, by adding titanium in aluminium element, zirconium, niobium element make aluminum alloy organization's uniform small grains, and by adding boron, nickel, vanadium, tin and copper, improve the corrosion resistance nature of aluminium alloy.
On the other hand, the application breeds by carrying out 0.5-1 hour constant temperature before aluminum alloy melt is cast, 100 DEG C are lowered the temperature again with at least 30 DEG C/min of speed, and then be warming up to and breed temperature and cast, aluminum alloy melt is made to organize the growth of crystal grain to be suppressed before casting, the acceleration of some grain growing is removed, and then heats up, make in aluminum alloy organization crystal grain arrangement evenly.
Embodiment
Describe technical solution of the present invention in detail by the following examples, should be understood that, following embodiment only can be used for explaining the present invention and can not being interpreted as being limitation of the present invention.
A kind of corrosion resistant aluminum alloy preparation method,
Batching; Described batching is, be that the chromium of the boron of the bismuth of the manganese of the niobium of the copper of the silicon of 1.8-2.0%, the manganese of 0.5-1.0%, 0.8-1.2%, the titanium of 0.05-0.1%, 0.03-0.05%, the vanadium of 0.3-0.35%, 0.1-0.2%, the neodymium of 0.01-0.03%, 0.001-0.003%, the magnesium of 0.3-0.5%, 0.003-0.005%, the nickel of 0.1-0.3%, 0.1-0.3%, the zirconium of 0.1-0.3%, the tin of 0.05-0.08%, the lanthanum of 0.001-0.003% and surplus are aluminium by weight percentage.Described tin and copper add in gun-metal mode.
Described titanium, niobium, vanadium, zirconium, lanthanum are add in the mode of titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy respectively.
Melting, the aluminium of other material and remainder is added after the aluminium of the gun-metal in material, nickel and chromium and half quantity is carried out being smelted into liquid, and be incubated 0.5-1 hour after being warmed up to 750 ± 20 DEG C, with at least 30 DEG C/min of coolings 100 DEG C, be incubated 0.2-0.5 hour after being warming up to 750 ± 20 DEG C again, then carry out constant temperature 700 DEG C cast and cool to 130-150 DEG C become aluminum alloy ingot;
Quenching, carries out being rolled into finished product after aluminum alloy ingot is incubated 2-4 hour in 550 ± 20 DEG C of quenching furnances.
Described temperature-fall period divides two stages, and first stage is for be at the uniform velocity cooled to 400-430 DEG C, and cooling rate is 25-30 DEG C/min; Second stage be fast cooling to 130-150 DEG C, speed is 2 DEG C/sec.Two stage coolings why are divided to be because if the too fast meeting of cooling rate started causes the tissue of aluminum alloy ingot produce layering and affect intensity, the fast cooling in later stage ensures that aluminium alloy interior tissue is even, do not reduce coarse grained appearance.
Following examples of the application are only the composition difference of aluminium alloy, and preparation method is identical, therefore, below in an example, the composition of aluminium alloy is only described, and do not carry out repeat specification to preparation method.
Embodiment 1
A kind of anticorrosion aluminium preparation method, be that the silicon of 1.8%, the manganese of 0.5%, the copper of 0.8%, titanium, the niobium of 0.03%, vanadium, the manganese of 0.1%, neodymium, the bismuth of 0.001%, magnesium, the boron of 0.003%, nickel, the chromium of 0.1%, zirconium, the tin of 0.05%, the lanthanum of 0.001% and the surplus of 0.1% of 0.1% of 0.3% of 0.01% of 0.3% of 0.05% are aluminium by weight percentage.
Embodiment 2
A kind of anticorrosion aluminium preparation method, be that the silicon of 2.0%, the manganese of 1.0%, the copper of 1.2%, titanium, the niobium of 0.05%, vanadium, the manganese of 0.2%, neodymium, the bismuth of 0.003%, magnesium, the boron of 0.005%, nickel, the chromium of 0.3%, zirconium, the tin of 0.08%, the lanthanum of 0.003% and the surplus of 0.3% of 0.3% of 0.5% of 0.03% of 0.35% of 0.1% are aluminium by weight percentage.
Embodiment 3
A kind of anticorrosion aluminium preparation method, be by weight percentage, the silicon of 1.85%, the manganese of 0.8%, 1.0% copper, 0.06% titanium, 0.035% niobium, 0.32% vanadium, 0.15% manganese, 0.022% neodymium, 0.0017% bismuth, 0.42% magnesium, 0.004% boron, 0.2% nickel, 0.2% chromium, 0.25% zirconium, 0.06% tin, 0.0015% lanthanum, the magnesium of 0.35%, the calcium of 0.1% and 0.15% iron surplus be aluminium.
Claims (5)
1. a corrosion resistant aluminum alloy preparation method, is characterized in that:
Batching;
Melting, the aluminium of other material and remainder is added after the aluminium of the gun-metal in material, nickel and chromium and half quantity is carried out being smelted into liquid, and be incubated 0.5-1 hour after being warmed up to 750 ± 20 DEG C, with at least 30 DEG C/min of coolings 100 DEG C, be incubated 0.2-0.5 hour after being warming up to 750 ± 20 DEG C again, then carry out constant temperature 700 DEG C cast and cool to 130-150 DEG C become aluminum alloy ingot;
Quenching, carries out being rolled into finished product after aluminum alloy ingot is incubated 2-4 hour in 550 ± 20 DEG C of quenching furnances.
2. corrosion resistant aluminum alloy preparation method according to claim 1, it is characterized in that: described batching is, be by weight percentage, the silicon of 1.8-2.0%, the manganese of 0.5-1.0%, the copper of 0.8-1.2%, the titanium of 0.05-0.1%, the niobium of 0.03-0.05%, the vanadium of 0.3-0.35%, the manganese of 0.1-0.2%, the neodymium of 0.01-0.03%, the bismuth of 0.001-0.003%, the magnesium of 0.3-0.5%, the boron of 0.003-0.005%, the nickel of 0.1-0.3%, the chromium of 0.1-0.3%, the zirconium of 0.1-0.3%, the tin of 0.05-0.08%, the lanthanum of 0.001-0.003% and surplus are aluminium.
3. corrosion resistant aluminum alloy preparation method according to claim 1, is characterized in that: described temperature-fall period divides two stages, and first stage is for be at the uniform velocity cooled to 400-430 DEG C, and cooling rate is 25-30 DEG C/min; Second stage be fast cooling to 130-150 DEG C, speed is 2 DEG C/sec.
4. corrosion resistant aluminum alloy preparation method according to claim 2, is characterized in that: described tin and copper add in gun-metal mode.
5. corrosion resistant aluminum alloy preparation method according to claim 2, is characterized in that: described titanium, niobium, vanadium, zirconium, lanthanum are add in the mode of titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy respectively.
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| CN201410543490.XA CN104313405A (en) | 2014-10-14 | 2014-10-14 | Preparation method of corrosion-resistant aluminum alloy |
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| CN201410543490.XA CN104313405A (en) | 2014-10-14 | 2014-10-14 | Preparation method of corrosion-resistant aluminum alloy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878265A (en) * | 2015-06-25 | 2015-09-02 | 潘应生 | Acid etching resisting alloy, processing method and surface treatment process |
| CN105401022A (en) * | 2015-11-14 | 2016-03-16 | 合肥标兵凯基新型材料有限公司 | High-toughness corrosion-resistant aluminum alloy and preparation method thereof |
| CN108220714A (en) * | 2017-12-20 | 2018-06-29 | 柳州璞智科技有限公司 | A kind of almag used for electronic packaging and preparation method thereof |
| CN111041388A (en) * | 2019-12-31 | 2020-04-21 | 安徽科蓝特铝业有限公司 | Aluminum alloy section's luggage rack for car |
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| CN101445886A (en) * | 2008-12-31 | 2009-06-03 | 东北轻合金有限责任公司 | High-strength high-toughness aluminum alloy pre-tensioned thick plate and preparation method thereof |
| CN102268575A (en) * | 2011-07-20 | 2011-12-07 | 安徽欣意电缆有限公司 | Aluminum alloy material and preparation method thereof |
| CN103103387A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-C-RE aluminium alloy, preparation method thereof and power cable |
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2014
- 2014-10-14 CN CN201410543490.XA patent/CN104313405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445886A (en) * | 2008-12-31 | 2009-06-03 | 东北轻合金有限责任公司 | High-strength high-toughness aluminum alloy pre-tensioned thick plate and preparation method thereof |
| CN102268575A (en) * | 2011-07-20 | 2011-12-07 | 安徽欣意电缆有限公司 | Aluminum alloy material and preparation method thereof |
| CN103103387A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-C-RE aluminium alloy, preparation method thereof and power cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878265A (en) * | 2015-06-25 | 2015-09-02 | 潘应生 | Acid etching resisting alloy, processing method and surface treatment process |
| CN105401022A (en) * | 2015-11-14 | 2016-03-16 | 合肥标兵凯基新型材料有限公司 | High-toughness corrosion-resistant aluminum alloy and preparation method thereof |
| CN108220714A (en) * | 2017-12-20 | 2018-06-29 | 柳州璞智科技有限公司 | A kind of almag used for electronic packaging and preparation method thereof |
| CN111041388A (en) * | 2019-12-31 | 2020-04-21 | 安徽科蓝特铝业有限公司 | Aluminum alloy section's luggage rack for car |
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Application publication date: 20150128 |