CN103572101A - Heat exchanger aluminum alloy radiating fin material suitable for hard brazing - Google Patents
Heat exchanger aluminum alloy radiating fin material suitable for hard brazing Download PDFInfo
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- CN103572101A CN103572101A CN201310497514.8A CN201310497514A CN103572101A CN 103572101 A CN103572101 A CN 103572101A CN 201310497514 A CN201310497514 A CN 201310497514A CN 103572101 A CN103572101 A CN 103572101A
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- heat exchanger
- brazing
- aluminum alloy
- fin material
- radiating fin
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Abstract
The invention relates to a heat exchanger aluminum alloy radiating fin material suitable for hard brazing, which comprises the following components in percentage by weight: 1.1% of silicon, 0.65% of iron, 2.4% of manganese, 1.8% of zinc, 0.065% of zirconium, 0.032% of chrome, 0.014% of titanium, 0.45% of tin, and the balance of aluminum and inevitable impurities. After using the technical scheme, the heat exchanger aluminum alloy radiating fin material subjected to hard brazing has the advantages of high strength, excellent heat transfer characteristic, excellent corrosion resistance, excellent anti-sag property, excellent sacrificial anode effect and excellent self corrosion resistance.
Description
Technical field
The invention belongs to field of aluminum alloys, specifically refer to a kind of material of aluminum alloy heat sink for the heat exchanger of brazing that is suitable for.
Background technology
The heat exchanger that existing automobile is used is to assemble by brazing by Al-Cu class alloy, Al-Mn class alloy, Al-Mn-Cu class alloy material with by the fin material that Al-Mn class alloy etc. forms.In order to prevent corroding working fluid path constituent material, require fin material to there is sacrificial anode effect, the distortion that simultaneously heat when preventing brazing causes, the infiltration of scolder, require excellent anti-sag property, erosion resistance.
Along with to the lighting of heat exchanger, the requirement that reduces costs, the wall thickness that further reduces tubing becomes the problem of consideration to manufacture the heat exchanger constituent materials such as fin material.If by fin material thinning, the sectional area that conducts heat diminishes, heat exchange performance reduces, intensity, persistence as the heat exchanger of product also have problems, the heat conductivity of therefore wishing more to increase, the intensity after brazing, anti-sag property, erosion resistance, self erosion resistance.
Summary of the invention
The object of the invention is after brazing, to there is high strength, and the heat exchanger of anti-sag property, erosion resistance, self erosion resistance, sacrificial anode effect excellence forms with aluminum alloy fin material.
The present invention is achieved by the following technical solutions:
Be suitable for the material of aluminum alloy heat sink for the heat exchanger of brazing, its composition includes by weight percentage, and 1.1% silicon, 0.65% iron, 2.4% manganese, 1.8% zinc, 0.065% zirconium, 0.032% chromium, 0.014% titanium, 0.45% tin and surplus are aluminium and inevitable impurity; Wherein, the content of magnesium is not higher than 0.05%; Tension stress before brazing is 220Mpa, the tension stress after brazing be the recrystallization particle diameter after 180MPa and brazing be 500 μ m or more than.
The invention has the beneficial effects as follows, be used for the radiator element of scatterer, vehicle heater, motorcar air conditioner etc. and the aluminum alloy fin material of the heat exchanger that pipeline constituent material engages by brazing, it is easy because the intensity before brazing is suitable so fin material is shaped, be that intensity before brazing can be not too high and make the fin material difficulty that is shaped, and the intensity after brazing is high and the heat exchanger aluminum alloy fin material of heat transfer characteristic, erosion resistance, anti-sag property, sacrificial anode effect, self excellent corrosion resistance.
Embodiment
Describe by the following examples technical scheme of the present invention in detail.
Be suitable for the material of aluminum alloy heat sink for the heat exchanger of brazing, its composition includes by weight percentage, and 1.1% silicon, 0.65% iron, 2.4% manganese, 1.8% zinc, 0.065% zirconium, 0.032% chromium, 0.014% titanium, 0.45% tin and surplus are aluminium and inevitable impurity; Wherein, the content of magnesium is not higher than 0.05%; Tension stress before brazing is 220Mpa, the tension stress after brazing be the recrystallization particle diameter after 180MPa and brazing be 500 μ m or more than.
Alloy material after melting, utilize after the thin slab that twin belt caster continuous casting thickness is 5～10mm, be cold-rolled to the thick 0.05～2.0mm of being of slab, at 475-485 ℃, implement process annealing, carry out cold rolling rate and be 10～96% cold rolling make final thickness of slab be 40～200 μ m after, keeping implementing final annealing at 355-365 ℃ of temperature as required.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification and replacement to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (1)
1. be suitable for the material of aluminum alloy heat sink for the heat exchanger of brazing, it is characterized in that: its composition includes by weight percentage, 1.1% silicon, 0.65% iron, 2.4% manganese, 1.8% zinc, 0.065% zirconium, 0.032% chromium, 0.014% titanium, 0.45% tin and surplus are aluminium and inevitable impurity; Wherein, the content of magnesium is not higher than 0.05%; Tension stress before brazing is 220Mpa, the tension stress after brazing be the recrystallization particle diameter after 180MPa and brazing be 500 μ m or more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497514.8A CN103572101A (en) | 2013-10-21 | 2013-10-21 | Heat exchanger aluminum alloy radiating fin material suitable for hard brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497514.8A CN103572101A (en) | 2013-10-21 | 2013-10-21 | Heat exchanger aluminum alloy radiating fin material suitable for hard brazing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572101A true CN103572101A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310497514.8A Pending CN103572101A (en) | 2013-10-21 | 2013-10-21 | Heat exchanger aluminum alloy radiating fin material suitable for hard brazing |
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| CN (1) | CN103572101A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08143998A (en) * | 1994-11-28 | 1996-06-04 | Mitsubishi Alum Co Ltd | Heat exchanger fin material made of aluminum alloy, having high fatigue strength after brazing |
| CN1401011A (en) * | 2000-12-13 | 2003-03-05 | 古河电气工业株式会社 | Method of manufacturing aluminum alloy fin material for brazing |
| CN1578844A (en) * | 2001-10-05 | 2005-02-09 | 克里斯有限合伙公司 | Aluminium alloy for making fin stock material |
| CN1620518A (en) * | 2001-12-21 | 2005-05-25 | 挪威海德罗技术公司 | Aluminium alloy to be used as fin material |
| JP2006250413A (en) * | 2005-03-09 | 2006-09-21 | Mitsubishi Alum Co Ltd | Aluminum alloy fin material for heat exchanger and heat exchanger |
| CN1914340A (en) * | 2004-02-03 | 2007-02-14 | 日本轻金属株式会社 | High strength aluminum alloy fin material for heat exchanger and method for production thereof |
-
2013
- 2013-10-21 CN CN201310497514.8A patent/CN103572101A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08143998A (en) * | 1994-11-28 | 1996-06-04 | Mitsubishi Alum Co Ltd | Heat exchanger fin material made of aluminum alloy, having high fatigue strength after brazing |
| CN1401011A (en) * | 2000-12-13 | 2003-03-05 | 古河电气工业株式会社 | Method of manufacturing aluminum alloy fin material for brazing |
| CN1578844A (en) * | 2001-10-05 | 2005-02-09 | 克里斯有限合伙公司 | Aluminium alloy for making fin stock material |
| CN1620518A (en) * | 2001-12-21 | 2005-05-25 | 挪威海德罗技术公司 | Aluminium alloy to be used as fin material |
| CN1914340A (en) * | 2004-02-03 | 2007-02-14 | 日本轻金属株式会社 | High strength aluminum alloy fin material for heat exchanger and method for production thereof |
| JP2006250413A (en) * | 2005-03-09 | 2006-09-21 | Mitsubishi Alum Co Ltd | Aluminum alloy fin material for heat exchanger and heat exchanger |
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Application publication date: 20140212 |