CN103014442A - Aluminum alloy for heat exchanger and method for preparing same - Google Patents
Aluminum alloy for heat exchanger and method for preparing same Download PDFInfo
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- CN103014442A CN103014442A CN2012105064551A CN201210506455A CN103014442A CN 103014442 A CN103014442 A CN 103014442A CN 2012105064551 A CN2012105064551 A CN 2012105064551A CN 201210506455 A CN201210506455 A CN 201210506455A CN 103014442 A CN103014442 A CN 103014442A
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Abstract
The invention relates to an aluminum alloy for a heat exchanger and a method for preparing the aluminum alloy. The aluminum alloy is prepared from the following components 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, 0.003-0.005% 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. According to the technical scheme in the invention, due to the addition of titanium, zirconium and niobium into the aluminium, the tissue grains of the aluminum alloy are fine and uniform, and due to the addition of boron, nickel, vanadium, tin and copper, the corrosion resistance of the aluminum alloy is improved.
Description
Technical field
The invention belongs to field of aluminum alloys, refer to especially a kind of automobile aluminium alloy of heat exchanger and preparation method thereof.
Background technology
The heat exchangers such as used scatterer, condenser on the automobile have now used lightweight and the good aluminium alloy of heat conduction efficiency to substitute copper and Cu alloy material valuable and that density is large.And in the 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 material processes, and this has high strength and toughness with regard to the aluminium alloy that requires to make heat exchanger.
Heat exchanger in use, different with the right environment of medial surface because of the outside, in order to improve the Corrosion Protection of heat exchanger, the existing technology of using is inboard at the tube wall of heat exchanger and the outside sacrifice corrosion-resistant coating that all superposes.For the sacrifice corrosion-resistant coating of inboard, because thickness is limited, after this corrosion-resistant coating is corroded, will directly face aluminum alloy materials, therefore, in order to improve the work-ing life of heat exchanger, the corrosion resistance nature that improves aluminum alloy materials is best selection.
Summary of the invention
The purpose of this invention is to provide a kind of automobile with the aluminum alloy materials of heat exchanger, by the technical program, can improve the corrosion resistance nature of heat exchanger.
The present invention is achieved by the following technical solutions:
The aluminium alloy of heat exchanger, its composition is that the chromium of the boron 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%, 0.003-0.005%, 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%, lanthanum and the surplus of 0.001-0.003% are aluminium by weight percentage.
As further improvement, described aluminum alloy materials also includes the magnesium of 0.3-0.5%, the calcium of 0.1-0.2% and the iron of 0.1-0.3%.
Described preparation method is:
Batching, be that the tin of the chromium of the boron 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%, 0.003-0.005%, the nickel of 0.1-0.3%, 0.1-0.3%, the zirconium of 0.1-0.3%, 0.05-0.08%, lanthanum and the surplus of 0.001-0.003% are that aluminium is prepared burden by weight percentage
Melting, add other material and remaining aluminium after the aluminium of the gun-metal in the above-mentioned materials, nickel and chromium and half quantity is smelted into liquid, and insulation 1-2 hour after being warmed up to 750 ± 20 ℃, carry out again 700 ℃ of constant temperature and cast and cool to 130-150 ℃ and become aluminum alloy ingot;
Quench, be rolled into finished product aluminum alloy ingot is incubated 2-4 hour in 550 ± 20 ℃ of quenching furnances after.
Described temperature-fall period divides two stages, and first stage is at the uniform velocity being cooled to 400-430 ℃, and cooling rate is 25-30 ℃/minute; Second stage be fast cooling to 130-150 ℃, speed is 2 ℃/second.
Described tin and copper are to add in the gun-metal mode.
Described titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds.
The beneficial effect that the present invention compares with prior art is:
In the technical program, so that aluminum alloy organization's crystal grain is tiny evenly, and by adding boron, nickel, vanadium, tin and copper, improved the corrosion resistance nature of aluminium alloy by in aluminium element, adding titanium, zirconium, niobium element.
Embodiment
Describe by the following examples technical solution of the present invention in detail, should be understood that, following embodiment only can be used for explaining the present invention and can not be interpreted as to be limitation of the present invention.
The aluminium alloy of heat exchanger, its composition is that the chromium of the boron 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%, 0.003-0.005%, 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%, lanthanum and the surplus of 0.001-0.003% are aluminium by weight percentage.
As further improvement, described aluminium alloy also includes the magnesium of 0.3-0.5%, the calcium of 0.1-0.2% and the iron of 0.1-0.3%.
Described tin and copper are to add in the gun-metal mode.
Described titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds.
Described preparation method is:
Batching, be that the tin of the chromium of the boron 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%, 0.003-0.005%, the nickel of 0.1-0.3%, 0.1-0.3%, the zirconium of 0.1-0.3%, 0.05-0.08%, lanthanum and the surplus of 0.001-0.003% are that aluminium is prepared burden by weight percentage; Wherein, tin and copper are to add in the gun-metal mode, and titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds;
Melting, add other material and remaining aluminium after the aluminium of the gun-metal in the above-mentioned materials, nickel and chromium and half quantity is smelted into liquid, and insulation 1-2 hour after being warmed up to 750 ± 20 ℃, carry out again 700 ℃ of constant temperature and cast and cool to 130-150 ℃ and become aluminum alloy ingot;
Quench, be rolled into finished product aluminum alloy ingot is incubated 2-4 hour in 550 ± 20 ℃ of quenching furnances after.
Described temperature-fall period divides two stages, and first stage is at the uniform velocity being cooled to 400-430 ℃, and cooling rate is 25-30 ℃/minute; Second stage be fast cooling to 130-150 ℃, speed is 2 ℃/second.Why divide the cooling of two stages to be because, produce layering and affect intensity if the too fast meeting of cooling rate of beginning causes the tissue of aluminum alloy ingot, the fast cooling in later stage is to guarantee that the aluminium alloy interior tissue is even, does not reduce coarse grained appearance.
Embodiment 1
Described preparation method is:
Batching, be that 1.8% silicon, 0.5% manganese, 0.8% copper, 0.05% titanium, 0.03% niobium, 0.3% vanadium, 0.003% boron, 0.1% nickel, 0.1% chromium, 0.1% zirconium, 0.05% tin, 0.001% lanthanum and surplus are that aluminium is prepared burden by weight percentage; Wherein, tin and copper are to add in the gun-metal mode, and titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds;
Melting, add other material and remaining aluminium after the aluminium of the gun-metal in the above-mentioned materials, nickel and chromium and half quantity is smelted into liquid, and insulation 1 hour after being warmed up to 750 ± 20 ℃, carry out again 700 ℃ of constant temperature and cast and cool to 130-150 ℃ and become aluminum alloy ingot; Temperature-fall period divides two stages, and first stage is at the uniform velocity being cooled to 400-430 ℃, and cooling rate is 25-30 ℃/minute; Second stage be fast cooling to 130-150 ℃, speed is 2 ℃/second;
Quench, be rolled into finished product aluminum alloy ingot is incubated 2.5 hours in 550 ± 20 ℃ of quenching furnances after.
Embodiment 2
Described preparation method is:
Batching, be that 2.0% silicon, 1.0% manganese, 1.2% copper, 0.1% titanium, 0.05% niobium, 0.35% vanadium, 0.005% boron, 0.3% nickel, 0.3% chromium, 0.3% zirconium, 0.08% tin, 0.003% lanthanum and surplus are that aluminium is prepared burden by weight percentage; Wherein, tin and copper are to add in the gun-metal mode, and titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds;
Melting, add other material and remaining aluminium after the aluminium of the gun-metal in the above-mentioned materials, nickel and chromium and half quantity is smelted into liquid, and insulation 2 hours after being warmed up to 750 ± 20 ℃, carry out again 700 ℃ of constant temperature and cast and cool to 130-150 ℃ and become aluminum alloy ingot;
Quench, be rolled into finished product aluminum alloy ingot is incubated 3.5 hours in 550 ± 20 ℃ of quenching furnances after.
Embodiment 3
Described preparation method is:
Batching, be that 1.85% silicon, 0.8% manganese, 1.0% copper, 0.06% titanium, 0.035% niobium, 0.32% vanadium, 0.004% boron, 0.2% nickel, 0.2% chromium, 0.25% zirconium, 0.06% tin, 0.0015% lanthanum, 0.35% magnesium, 0.1% calcium and 0.15% iron surplus are that aluminium is prepared burden by weight percentage; Wherein, tin and copper are to add in the gun-metal mode, and titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds;
Melting, add other material and remaining aluminium after the aluminium of the gun-metal in the above-mentioned materials, nickel and chromium and half quantity is smelted into liquid, and insulation 1.5 hours after being warmed up to 750 ± 20 ℃, carry out again 700 ℃ of constant temperature and cast and cool to 130-150 ℃ and become aluminum alloy ingot;
Quench, be rolled into finished product aluminum alloy ingot is incubated 3 hours in 550 ± 20 ℃ of quenching furnances after.
Claims (5)
1. the aluminium alloy of heat exchanger, it is characterized in that: its composition is that the chromium of the boron 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%, 0.003-0.005%, 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%, lanthanum and the surplus of 0.001-0.003% are aluminium by weight percentage.
2. the aluminium alloy of heat exchanger according to claim 1, it is characterized in that: described aluminum alloy materials also includes the magnesium of 0.3-0.5%, the calcium of 0.1-0.2% and the iron of 0.1-0.3%.
3. the aluminium alloy preparation method of heat exchanger is characterized in that:
Batching, be that the tin of the chromium of the boron 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%, 0.003-0.005%, the nickel of 0.1-0.3%, 0.1-0.3%, the zirconium of 0.1-0.3%, 0.05-0.08%, lanthanum and the surplus of 0.001-0.003% are that aluminium is prepared burden by weight percentage
Melting, add other material and remaining aluminium after the aluminium of the gun-metal in the above-mentioned materials, nickel and chromium and half quantity is smelted into liquid, and insulation 1-2 hour after being warmed up to 750 ± 20 ℃, carry out again 700 ℃ of constant temperature and cast and cool to 130-150 ℃ and become aluminum alloy ingot;
Quench, be rolled into finished product aluminum alloy ingot is incubated 2-4 hour in 550 ± 20 ℃ of quenching furnances after.
Described temperature-fall period divides two stages, and first stage is at the uniform velocity being cooled to 400-430 ℃, and cooling rate is 25-30 ℃/minute; Second stage be fast cooling to 130-150 ℃, speed is 2 ℃/second.
Described tin and copper are to add in the gun-metal mode.
Described titanium, niobium, vanadium, zirconium are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum and zirconium alloy adds.
4. the aluminium alloy preparation method of heat exchanger according to claim 3, it is characterized in that: described tin and copper are to add in the gun-metal mode.
5. the aluminium alloy preparation method of heat exchanger according to claim 3 is characterized in that: described titanium, niobium, vanadium, zirconium, lanthanum are respectively that the mode with titanium aluminum alloy, Nb-Al alloy, vananum, zirconium alloy and La-Al alloy adds.
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| CN2012105064551A CN103014442A (en) | 2012-11-26 | 2012-11-26 | Aluminum alloy for heat exchanger and method for preparing same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148774A (en) * | 2016-08-17 | 2016-11-23 | 任静儿 | A kind of aluminum alloy materials of heat exchanger |
| CN108396201A (en) * | 2018-04-10 | 2018-08-14 | 安徽科蓝特铝业有限公司 | One kind containing rare earth element aluminium section bar |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086812A1 (en) * | 1999-11-17 | 2003-05-08 | Wittebrood Adrianus Jacobus | Aluminium brazing alloy |
| CN1831174A (en) * | 2005-03-07 | 2006-09-13 | 东北轻合金有限责任公司 | Aluminium alloy foil used for automobile radiator and its making method |
| CN102146540A (en) * | 2010-02-08 | 2011-08-10 | 株式会社神户制钢所 | Aluminum alloy clad member adopted to heat exchanger, and core material for the same |
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- 2012-11-26 CN CN2012105064551A patent/CN103014442A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086812A1 (en) * | 1999-11-17 | 2003-05-08 | Wittebrood Adrianus Jacobus | Aluminium brazing alloy |
| CN1831174A (en) * | 2005-03-07 | 2006-09-13 | 东北轻合金有限责任公司 | Aluminium alloy foil used for automobile radiator and its making method |
| CN102146540A (en) * | 2010-02-08 | 2011-08-10 | 株式会社神户制钢所 | Aluminum alloy clad member adopted to heat exchanger, and core material for the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148774A (en) * | 2016-08-17 | 2016-11-23 | 任静儿 | A kind of aluminum alloy materials of heat exchanger |
| CN108396201A (en) * | 2018-04-10 | 2018-08-14 | 安徽科蓝特铝业有限公司 | One kind containing rare earth element aluminium section bar |
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Application publication date: 20130403 |