CN1359427A - Extrudable and drawable, high corrosion resistant aluminium alloy - Google Patents
Extrudable and drawable, high corrosion resistant aluminium alloy Download PDFInfo
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- CN1359427A CN1359427A CN00804031A CN00804031A CN1359427A CN 1359427 A CN1359427 A CN 1359427A CN 00804031 A CN00804031 A CN 00804031A CN 00804031 A CN00804031 A CN 00804031A CN 1359427 A CN1359427 A CN 1359427A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 22
- 230000007797 corrosion Effects 0.000 title claims abstract description 22
- 229910000838 Al alloy Inorganic materials 0.000 title description 12
- 239000000956 alloy Substances 0.000 claims abstract description 80
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 79
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 239000011701 zinc Substances 0.000 claims abstract description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 11
- 239000010936 titanium Substances 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000011572 manganese Substances 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 20
- 230000003628 erosive effect Effects 0.000 description 16
- 239000002245 particle Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000000137 annealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 241000024287 Areas Species 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000001941 electron spectroscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Extrusion Of Metal (AREA)
- Prevention Of Electric Corrosion (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Powder Metallurgy (AREA)
- Secondary Cells (AREA)
- Conductive Materials (AREA)
- Laminated Bodies (AREA)
- Cookers (AREA)
- Dowels (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Catalysts (AREA)
Abstract
An aluminium based, corrosion resistant alloy consisting of: 0,05- 0,15 % by weight of silicon, 0,06-0,35 % by weight of iron, 0,01-1,00 % by weight of manganese, 0,02-0,60 % by weight of magnesium, 0,05-0,70 % by weight of zinc, 0-0,25 % by weight of chromium, 0-0,20 % by weight of zirconium, 0-0,25 % by weight of titanium, 0-0,10 % by weight of copper, up to 0,15 % by weight of other impurities, each not greater than 0,03 % by weight and the balance aluminium.
Description
The present invention relates to high corrosion resistance aluminum alloy, particularly be intended to be used in the production of automative air conditioning pipe as heat exchanger tube or conveying pipe of refrigerant line or the alloy of conveyance fluid pipeline usually.Described alloy has extensively improved the resistivity to pitting corrosion, has strengthened mechanical property, particularly aspect crooked and terminal moulding.
It is very general to adopt aluminum alloy materials to be used for the automobile heat exchanger components, and its application comprises engine cool and air-conditioning system.In air-conditioning system, aluminium parts comprises condenser, vaporizer and refrigerant circulation lines or fluid feed line.In use, these parts can stand to comprise mechanical load, vibration, stone impacts and the condition of road chemical (as the saltwater environment under the winter transport condition).Because the aluminium alloy of AA3000 train type is in conjunction with high relatively intensity, lighter weight, erosion resistance and extrudability, they have found purposes widely in these application facet.In order to satisfy client to the ever-increasing requirement of weather resistance, be the target in 10 years the work-ing life that car manufactures has been formulated engine refrigeration agent and heat exchanger of air condition system.But when being in corrosive atmosphere, AA3000 series alloy (as AA3102, AA3003 and AA3103) is subjected to large-scale pitting corrosion, causes the trolley part fault.Have more long-life ever-increasing target/requirement in order to satisfy automotive system, developed new aluminium alloy with obvious enhanced corrosion resistance.Particularly, developed " long lifetime " alloy replacing product recently for the condenser pipeline, as at US-A-5,286,316 and WO-A-97/46726 in those disclosed.Disclosed alloy is generally standard A A3102 or the AA1100 alloy that uses in condenser tube in these publications, promptly has the substitute of the extruded tube material of relatively low physical strength.Because the raising of condenser tube corrosion resistance nature, the corrosion centrostigma is transferred to next zone and causes manifold and conveying pipe of refrigerant line fault.And along with use the more trend of multitube below vehicle, for example rear portion weather (rear climate) Controlling System owing to more seriously be exposed to road environment, requires to use improved alloy.The extruding that fluid feed line is carried out through several steps usually and finally accurately be stretched to final size is assembled.In the highest flight alloy is AA3003 and AA3103 in this application, and with AA3102 alloy phase ratio, they have higher intensity and stiffness.Therefore produced new demand: have similar or be better than the flexible and physical strength of processing of AA3003/AA3103 alloy, but have improved erosion resistance to the aluminium alloy that satisfies following requirement.
But the purpose of this invention is to provide and a kind ofly push, can stretch and the aluminium alloy of brazing, it has improved erosion resistance, and is suitable for the thin-walled fluid feed line.Another object of the present invention provides a kind of aluminium alloy that is suitable for Tube Sheet of Heat Exchanger or extruding product.Another purpose of the present invention provides a kind of aluminium alloy that is suitable as the fin material (finstock) that is used for interchanger or is used in the Foilpac application that is subjected to for example brine corrosion.Also purpose of the present invention provides the aluminium alloy that has improved formability in crooked and terminal forming operation process.
Realized the silicon of purpose of the present invention and advantage: 0.05-0.15% (weight), the iron of 0.06-0.35% (weight), the manganese of 0.01-1.00% (weight), the magnesium of 0.02-0.60% (weight), the zinc of 0.05-0.70% (weight), the chromium of 0-0.25% (weight), the zirconium of 0-0.20% (weight), the titanium of 0-0.25% (weight), the copper of 0-0.10% (weight), high other impurity to 0.15% (weight) by the aluminum base alloy of being made up of following ingredients, the content of every kind of impurity is not more than the aluminium of 0.03% (weight) and surplus.
The content of preferred manganese is between 0.50-0.70% (weight), more preferably 0.62-0.70% (weight).The adding of manganese helps to improve intensity, but key is to reduce the negative interaction that manganese produces the precipitation in final annealing stage manganese carrying phase, and this precipitation causes thicker final particle.
The preferred 0.15-0.30% of the add-on of magnesium (weight), more preferably 0.25-0.30% (weight), it has caused the refinement (being used for recrystallize owing to stored more energy in deformation process) of final particle size, and has improved the material strain hardening capacity.Generally speaking, this means in the bending of for example pipe and terminal moulding process to have improved formability.Magnesium also has favourable influence to corrosive nature by changing oxide skin.Because magnesium has very strong effect aspect the raising extrusion performance, preferably its content is lower than 0.3% (weight).Add-on more than 0.3% (weight) is incompatible with good brazing performance usually.
Because the contamination of zinc (even for example very little zinc concentration also the anodic polarization performance of negative impact AA6000 series alloy), the lower so that alloy of the level that should keep this element can recirculation, saves the cost of tapping floor.If not, the high zinc at least 0.70% (weight) of content has very strong positive effect to erosion resistance, but the preferred 0.10-0.30% of the content of zinc (weight), more preferably 0.20-0.25% (weight) for above-mentioned reasons.
According to the present invention, the content of iron is 0.06-0.22% (weight) in the preferred alloy.Usually, low iron level, preferred 0.06-0.18% (weight) is comparatively desirable to improving erosion resistance, and this is that rich iron particle can form pitting corrosion erosive position usually because it has reduced rich iron particulate amount.But from the position of tapping floor, the content of iron is crossed low then comparatively difficult, and final particle size is had disadvantageous effect (because the rich iron particle as the nucleation position is less in recrystallize).In order to offset the disadvantageous effect of iron level low relatively in the alloy, have to add the refinement that other elements are used for grain pattern.Yet preferred iron level is 0.18-0.22% (weight) in another many Application Areass, and it combines the ability of fabulous corrosion resistance nature, final particle size and tapping floor.
Silicone content is 0.05-0.12% (weight), more preferably 0.06-0.10% (weight).In order to control and to optimize AlFeSi-type particulate distribution of sizes (firsts and seconds particle), control the particle size in the finished product thus, keeping silicone content is very important within this limit.
Concerning usability again, in alloy, exist some chromium comparatively desirable.But the adding of chromium has improved extruding, the stretchiness of pipe is had negative influence, so the level of preferred chromium is 0.05-0.15% (weight).
In order to optimize erosion resistance, the content of preferred zirconium is between 0.02-0.20% (weight), more preferably between 0.10-0.18% (weight).In this scope, in fact the extruding of alloy is not subjected to the influence of any zirconium content.
By adding titanium, preferred 0.10-0.25% (weight) can obtain the further optimization to the erosion resistance of alloy.Concerning these titanium levels, not finding has remarkable influence to extruding property.
Because copper has bigger negative influence to erosion resistance, even and because a spot of adding also can be to extruding property generation negative influence, the content of copper should be maintained at alap level in the alloy, preferably is lower than 0.01% (weight).
In order to prove that aluminum base alloy of the present invention is improved than prior art alloy, a series of alloy grade have been become to carry out the research of extruding property, stretchiness, mechanical property, formability parameters and erosion resistance aspect, see Table 1.These alloys prepare with the DC casting of traditional method by extrusion ingot.The composition of attention alloy is represented with weight percent, and is considered every kind of incidental impurities that can contain high to 0.03% (weight) in these alloys.Select to form by the amount that changes different principal elements.Notice that table 1 interalloy 1 be the composition of standard A A3103 alloy, its in this research conduct with reference to alloy.
Table 1: the chemical composition of alloy (percentage by weight) alloy Fe Si Mn Mg Cr Zn Cu Zr Ti 1 0.54 0.11 1.02---0.03-0.01 2 0.24 0.08 0.67 0.29-----3 0.23 0.09 0.70 0.29 0.10----4 0.24 0.08 0.70 0.27 0.22----5 0.21 0.08 0.68 0.28-0.25---6 0.20 0.08 0.67 0.27 0.07 0.24---7 0.25 0.13 0.67 0.05 0.04 0.16--0.17 8 0.22 0.10 0.74 0.29-0.13--9 0.21 0.10 0.72 0.25 0.10 0.12-0.19 10 0.22 0.10 0.71 0.27 0.12 0.22-0.20 11 0.23 0.09 0.70 0.26 0.01 0.11 0.08-12 0.22 0.10 0.50 0.26-0.22--13 0.55 0.10 0.69 0.27-0.21--14 0.21 0.05 0.68 0.27 0.06 0.25---
Following description describes technology used in performance study in detail, is the discussion to obtaining result afterwards.
Composition with the determination of electron spectroscopy billet.In analyzing, this uses the Baird vacuscope, the testing standard that adopts Pechiney to provide.
According to standard program the extruding billet is carried out homogenize, be heated to about 600 ℃ maintenance temperature with 100 ℃/hour heating rate, air cooling is to room temperature afterwards.
Being squeezed on the industrial extrusion machine that uses following condition, physical size of homogenize billet carried out:
Billet temperature: 455-490 ℃
Extruding ratio: 63: 1
Charging ram speed: 16.5mm/ second
Die head: 3 holes
Extrudate: 28mm OD manages (extrudate water cooling)
Extruding property is relevant with die pressure and maximum squeeze pressure (peak pressure).The pressure transmitter that these parameters are fixed on the extrusion machine is noted, and can directly read these values.
The parent tube of extruding in amounting to 6 times stretching by final formpiston stretch (plug draw) be the 9.5mm OD production tube of 0.4mm to wall thickness.The each stretching reduces about 36%.After final the stretching, with pipe soft annealing in 420 ℃ batch furnace.
According to the Euronorm standard, the test of the back pipe mechanical property of annealing is carried out on the SchenkTrebel universal tensile testing machine.In test, whole test process E-modulus is fixed on 70000N/mm2.The constant airspeed of test until reaching YS (yield strength), and is the 40%Lo/ branch from YS to fissured test speed occurring at per second 10N/mm2, and Lo is initial gauge length.
According to the revision of ASTM G69 standard method of test, the GamryPC4/300 equipment that use is made reference with saturated calomel electrode (SCE) is measured corrosion potential.Before measuring the pipe sample is removed greasy dirt in acetone.The pipe sample surfaces is not filed or denuded, under no any form is stirred, measure.Continuous recording corrosion potential during 60 minutes, the mean value of the numeric representation that provides these record values during last 30 minutes of test.
Be improved than prior art alloy aspect the erosion resistance in order to prove that aluminium alloy of the present invention is formed, with so-called SWAAT testing method (acidifying synthetic sea water testing method) test erosion resistance.According to ASTM G85-85 Annex A3,30 minutes injection period and 90 minutes soak period are tested by hocketing under 98% humidity.Electrode used therein is that to be acidified with acetic acid to pH be 2.8-3.0 and forms artificial seawater according to ASTM standard D1141.Temperature in the chamber remains on 49 ℃.Test is carried out in Erichsen salt solution jet chamber (Salt SprayChamber) (number 606/1000).
In order to study the progress of corrosive nature, from the chamber, took out the sample of different-alloy every two days.Then material is cleaned in water, subsequently by the pipe sample being immersed in the pressure test leakage situation that the water neutralization applies 1 bar.Described test is identical with the method for often using in automotive industry, and wherein the acceptable performance of condenser tube is restricted to and exposes above 20 days.The data that provide in the SWAAT corrosion test are " SWAAT life-span ", and first pipe sample in 10 pipe samples (each is long for 0.5m) is in the test middle punch altogether.
Found that in the extruding of different-alloy compare with reference to alloy (equaling alloy 1) with 3103, the squeeze pressure that is used for beta alloy that obtains equals or maximum is higher than its 5-6%.This is considered to a little difference, should be noted that all alloys are all in identical billet temperature and charging ram speed (not carrying out pressure parameter optimization in this test) work down.
Surface finish after the extruding, particularly in the surface finish of inner surface of tube, particularly important in this is used, this is because pipe will be by a cold drawn less diameter and the wall thickness of reaching.Surface imperfection can hinder drawing process, and causes that the crack appears in pipe in drawing process.All alloys of studying in test all show good internal surface outward appearance.
About stretching, most of alloys are all well stretched, promptly identical with standard alloy 1 speed and productive rate.Notice also to some that other are different from alloy listed in the table 1 and test, but they can not resist the requisite number purpose and stretch, serious crack occurs, so they be excluded out the row of further considering.Basically these alloys inconvenient reason in stretching is relevant with micro-structural feature, these features with a large amount of stretch reduce (be big particle or particle mutually) incompatible.Remaining alloy is included in the row of consideration after surpassing 5 stretchings.
Table 2 has been summarized the result of tensility test.
Table 2 alloy expection trombone slide nothing is seriously split evaluation
The drawing numbers 166 good 266 good 366 good 466 good 566 good 666 good 766 good 866 of stretching the number of times seam is good; Regularly fracture 965 has been paid suitable effort and is finished last stretching 10 66 good 11 65 and paid suitable effort to finish last stretching 12 66 good in stretching the last time, and regularly fracture 13 65 Fracture 14 65 that stretches has the last time been paid suitable effort and finished last stretching in stretching the last time
The character such as the table 3 of annealing back alloy are listed.
Table 3 alloy Y S UTS Elong n-value
*Particle-SWAAT longevity corrosion potential
MPa MPa A10 (%) size
*Order first pipe mV SCE
μ m 1 48 108 41.2 0.23 141 3-730,2 51 113 36.1 0.24 82 7-769,3 52 115 36.1 0.24 56 15-755,4 53 117 37.1 0.23 66 15-760,5 46 112 36.0 0.25 88 57-769,6 51 113 36.6 0.24 79 41-782,7 42 99 43.0 0.24 92 30-830,8 49 112 37.8 0.24 83 32-797,9 57 119 33.9 0.22 48 32-814,10 51 121 36.9 0.23 59 49-819,11 51 112 37.1 0.23 48 28-812,12 63 106 37.2 0.22 59 25-745 13 that bore a hole* *156 169 2.0--21-770 14 49 116 34.6 0.24 46 50-775
*N-value representation strain-hardening index is obtained by the actual stress-strain curve that Ludwik law expression formula is fitted to zone between surrender and homogeneous strain.
*Granular size is in vertically pipe upper edge, transverse section draw direction measurement.
* * *Alloy is tested under the H14 Annealed Strip.
From the result of table 3 as can be seen, mechanical property, particle size and erosion resistance depend on alloy to a great extent.At first, for mechanical property, compare with reference alloy 1, generally speaking beta alloy shows higher slightly UTS and YS value.The n-value that records is also higher slightly, and this shows owing to improved strain distribution in moulding process to have better formability.Should notice that also the refinement of gained grain pattern has favourable influence to formability for the long lifetime beta alloy, after the extension moulding, have the danger of less " orange peel " effect.
Aspect erosion resistance (being the SWAAT life-span), all beta alloys all are better than standard alloy 1.The pipe that can see alloy 1 only promptly broke down after 3 days, and found that beta alloy all has the obviously longer life-span.Mainly in obtaining the enhanced corrosion life be characterized as iron level lower in the alloy.Additional elements such as chromium, titanium and particularly zinc have been introduced the corrosion protection of second level by changing oxide skin and conversion corrosive attack morphology.Compare with reference alloy 1, alloy 5,6,10 and 14 has obtained surpassing 10 times raising aspect erosion resistance, and this is significant a raising really.The superior erosion resistance that obtains in beta alloy is attributable to the pattern that is limited in the corrosive attack of thin slice type in this field usually.It has prolonged and has penetrated the required time of given thickness corrosion, and therefore long-life alloy is provided.
About the galvanic corrosion electromotive force, to compare with reference alloy 1 as can be seen from Table 3, beta alloy has more negative electromotive force (more anodizing) usually.Adding zinc, zirconium and/or titanium makes electromotive force more negative to a great extent.The fact that these long-life alloys have more negative electromotive force is very important information to the corrosion standard, has promptly emphasized to select in application the importance of suitable combination of materials to be that pipe is connected to (as in condenser) on fin/collector material.In order to make pipe, need to select than long lifetime pipe anodic material more not as the victim of fin/collector.
Claims (17)
1. aluminium base, corrosion resistant alloy, it is made up of following substances:
The silicon of 0.05-0.15% weight,
The iron of 0.06-0.35% weight,
The manganese of 0.01-1.00% weight,
The magnesium of 0.02-0.60% weight,
The zinc of 0.05-0.70% weight,
The chromium of 0-0.25% weight,
The zirconium of 0-0.20% weight,
The titanium of 0-0.25% weight,
The copper of 0-0.10% weight,
High other impurity to 0.15% weight, every kind of impurity is not more than the aluminium of 0.03% weight and surplus.
2. the aluminum base alloy of claim 1 is characterized in that containing the manganese of 0.50-0.70% weight.
3. the aluminum base alloy of claim 2 is characterized in that containing the manganese of 0.62-0.70% weight.
4. each aluminum base alloy among the claim 1-3 is characterized in that containing the magnesium of 0.15-0.30% weight.
5. the aluminum base alloy of claim 1-3 is characterized in that containing the magnesium of 0.25-0.30% weight.
6. each aluminium base alloy among the claim 1-5 is characterized in that containing the zinc of 0.10-0.30% weight.
7. the aluminum base alloy of claim 1-5 is characterized in that containing the zinc of 0.20-0.25% weight.
8. each aluminum base alloy among the claim 1-7 is characterized in that containing the silicon of 0.05-0.12% weight.
9. the aluminum base alloy of claim 1-7 is characterized in that containing the silicon of 0.06-0.10% weight.
10. each aluminum base alloy among the claim 1-9 is characterized in that containing the iron of 0.06-0.22% weight.
11. each aluminum base alloy among the claim 1-9 is characterized in that containing the iron of 0.06-0.18% weight.
12. each aluminum base alloy among the claim 1-9 is characterized in that containing the iron of 0.18-0.22% weight.
13. each aluminum base alloy among the claim 1-12 is characterized in that containing the chromium of 0.05-0.15% weight.
14. each aluminum base alloy among the claim 1-13 is characterized in that containing the zirconium of 0.02-0.20% weight.
15. the aluminum base alloy of claim 14 is characterized in that containing the zirconium of 0.10-0.18% weight.
16. each aluminum base alloy among the claim 1-15 is characterized in that containing the titanium of 0.10-0.25% weight.
Each aluminum base alloy during 17. aforesaid right requires, the content range of wherein said copper is lower than about 0.01% weight.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99200493 | 1999-02-22 | ||
| EP99200493.7 | 1999-02-22 | ||
| US09/291,255 US20020007881A1 (en) | 1999-02-22 | 1999-04-13 | High corrosion resistant aluminium alloy |
| US09/291,255 | 1999-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1359427A true CN1359427A (en) | 2002-07-17 |
| CN1159468C CN1159468C (en) | 2004-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008040311A Expired - Lifetime CN1159468C (en) | 1999-02-22 | 2000-02-21 | Extrudable and drawable, high corrosion resistant aluminium alloy |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20020007881A1 (en) |
| EP (1) | EP1155157B1 (en) |
| JP (1) | JP2002538296A (en) |
| KR (1) | KR100650004B1 (en) |
| CN (1) | CN1159468C (en) |
| AT (1) | ATE241709T1 (en) |
| AU (1) | AU2914400A (en) |
| BR (1) | BR0008407B1 (en) |
| CA (1) | CA2356486C (en) |
| DE (1) | DE60002990T2 (en) |
| EA (1) | EA003950B1 (en) |
| ES (1) | ES2198289T3 (en) |
| WO (1) | WO2000050656A1 (en) |
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| US3859058A (en) * | 1973-10-04 | 1975-01-07 | Alusuisse | Corrosion resistant aluminum composite material |
| JPS6041697B2 (en) * | 1980-03-31 | 1985-09-18 | 住友軽金属工業株式会社 | Brazing fin material for aluminum alloy heat exchanger |
| US5286316A (en) * | 1992-04-03 | 1994-02-15 | Reynolds Metals Company | High extrudability, high corrosion resistant aluminum-manganese-titanium type aluminum alloy and process for producing same |
| US5906689A (en) * | 1996-06-06 | 1999-05-25 | Reynolds Metals Company | Corrosion resistant aluminum alloy |
| US5976278A (en) * | 1997-10-03 | 1999-11-02 | Reynolds Metals Company | Corrosion resistant, drawable and bendable aluminum alloy, process of making aluminum alloy article and article |
-
1999
- 1999-04-13 US US09/291,255 patent/US20020007881A1/en not_active Abandoned
-
2000
- 2000-02-21 BR BRPI0008407-7A patent/BR0008407B1/en not_active IP Right Cessation
- 2000-02-21 CA CA002356486A patent/CA2356486C/en not_active Expired - Fee Related
- 2000-02-21 EA EA200100904A patent/EA003950B1/en not_active IP Right Cessation
- 2000-02-21 AU AU29144/00A patent/AU2914400A/en not_active Abandoned
- 2000-02-21 KR KR1020017009079A patent/KR100650004B1/en not_active IP Right Cessation
- 2000-02-21 DE DE60002990T patent/DE60002990T2/en not_active Expired - Lifetime
- 2000-02-21 JP JP2000601218A patent/JP2002538296A/en not_active Withdrawn
- 2000-02-21 AT AT00907618T patent/ATE241709T1/en not_active IP Right Cessation
- 2000-02-21 WO PCT/EP2000/001518 patent/WO2000050656A1/en active IP Right Grant
- 2000-02-21 CN CNB008040311A patent/CN1159468C/en not_active Expired - Lifetime
- 2000-02-21 EP EP00907618A patent/EP1155157B1/en not_active Expired - Lifetime
- 2000-02-21 ES ES00907618T patent/ES2198289T3/en not_active Expired - Lifetime
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| CN106086535A (en) * | 2016-08-17 | 2016-11-09 | 江苏亚太安信达铝业有限公司 | Air conditioning for automobiles microchannel tubing aluminium alloy and preparation method thereof |
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| CN112254563A (en) * | 2019-07-22 | 2021-01-22 | 海德鲁铝业(苏州)有限公司 | Long-life aluminum alloy having high corrosion resistance and spiral grooved tube produced from the alloy |
| CN111647774A (en) * | 2020-02-17 | 2020-09-11 | 海德鲁挤压解决方案股份有限公司 | Method for producing corrosion-resistant and high-temperature-resistant material |
| CN115052708A (en) * | 2020-02-17 | 2022-09-13 | 海德鲁挤压解决方案股份有限公司 | High corrosion and heat resistant aluminum alloy |
| CN115103922A (en) * | 2020-02-17 | 2022-09-23 | 海德鲁挤压解决方案股份有限公司 | Method for producing corrosion-resistant and high-temperature-resistant aluminum alloy extruded material |
| US11939654B2 (en) | 2020-02-17 | 2024-03-26 | Hydro Extruded Solutions As | Method for producing a corrosion and high temperature resistant aluminum alloy extrusion material |
| CN115052708B (en) * | 2020-02-17 | 2024-06-25 | 海德鲁挤压解决方案股份有限公司 | High corrosion-resistant and heat-resistant aluminum alloy |
| CN111235437A (en) * | 2020-03-18 | 2020-06-05 | 河南誉金技术服务有限公司 | Al-Mn pipe alloy for household air-conditioning heat exchanger and preparation method thereof |
| CN113481415A (en) * | 2021-06-30 | 2021-10-08 | 惠州市富的旺旺实业发展有限公司 | Aluminum extruded radiator material and forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2198289T3 (en) | 2004-02-01 |
| EP1155157B1 (en) | 2003-05-28 |
| WO2000050656A1 (en) | 2000-08-31 |
| JP2002538296A (en) | 2002-11-12 |
| DE60002990T2 (en) | 2004-02-19 |
| BR0008407B1 (en) | 2009-05-05 |
| EA200100904A1 (en) | 2002-02-28 |
| US20020007881A1 (en) | 2002-01-24 |
| KR20010089609A (en) | 2001-10-06 |
| BR0008407A (en) | 2002-01-29 |
| AU2914400A (en) | 2000-09-14 |
| KR100650004B1 (en) | 2006-11-27 |
| DE60002990D1 (en) | 2003-07-03 |
| CN1159468C (en) | 2004-07-28 |
| CA2356486A1 (en) | 2000-08-31 |
| ATE241709T1 (en) | 2003-06-15 |
| EP1155157A1 (en) | 2001-11-21 |
| EA003950B1 (en) | 2003-10-30 |
| CA2356486C (en) | 2009-09-15 |
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