CN102773626B - Corrosion-resistant aluminum alloy soldering material - Google Patents
Corrosion-resistant aluminum alloy soldering material Download PDFInfo
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- CN102773626B CN102773626B CN201210240255.6A CN201210240255A CN102773626B CN 102773626 B CN102773626 B CN 102773626B CN 201210240255 A CN201210240255 A CN 201210240255A CN 102773626 B CN102773626 B CN 102773626B
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Abstract
The invention relates to a soldering material, in particular to a corrosion-resistant aluminum alloy soldering material. The material contains, by weight, the following components: 1.0-5.0% of Si, 0.6-1.8% of Mn, 0.15-0.35% of Fe, 0.1-0.3% of Sr, 1-2% of Cu, 1.5-2.5% of Cr, 0.05-0.2% of Ti and Al in balance. The inventive corrosion-resistant aluminum alloy soldering material is excellent in corrosion resistance and good in post-soldering hardness.
Description
Technical field
The present invention relates to brazing material, especially a kind of anticorrosion aluminium brazing material.
Background technology
Soldering is generally used for the labyrinth that assembling is made by aluminum or aluminum alloy parts, heat-exchange devices such as radiator, condenser, oil cooler.These heat-exchange devices often can be subject to the Eroded of external corrosion medium; as the aluminium alloy brazing material that forms these heat-exchange device important component parts; after excellent corrosion resistance and good soldering, hardness must possess simultaneously, yet not yet occurs such aluminium alloy brazing material in prior art.
CN 100503134C discloses a kind of lithium and aluminium alloy brazing material of calcic not of not basically containing, and it has the following composition representing with % by weight: Si 5.0-14.0; Fe 0.1-0.7; Mn 0.2-1.5; Mg maximum 2.0; Zn maximum 1.0; The optional wetting agent as alloy element of 1 % by weight, and surplus Al at the most and inevitably impurity.
CN 1100889C discloses a kind of, the aluminium alloy for brazed assembly of plate or extrusion form, it has following composition (wt.%): Si < 0.15, Mn 0.7-1.5, Mg is the highest by 0.8, Cu 0.5-1.5, Fe < 0.4, Cr < 0.30, Ti < 0.30, V < 0.30, Zr < 0.30, every kind of < of other element 0.05, total amount < 0.15, surplus be aluminium and, described aluminium alloy provides with aging state.
CN 100581700C discloses a kind of aluminum alloy strip for solder brazing or sheet, and it comprises at least 80 % by weight aluminium and the yttrium of 0.01-0.5% and/or the bismuth of 0.05-0.5%, and this band or sheet are coated with hard soldering alloys at least one face.Described band or sheet are for the production of the product of fluxless welding.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and a kind of anticorrosion aluminium brazing material is provided, and it possesses hardness after splendid corrosion resistance and good soldering simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si 1.0-5.0wt%, Mn 0.6-1.8wt%, Fe 0.15-0.35wt%, Sr 0.1-0.3wt%, Cu 1-2wt%, Cr 1.5-2.5wt%, Ti 0.05-0.2wt%, surplus Al.
The amount of described Si, selects in a usual manner, to provide alloy required brazing property.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Si is 1.0-5.0wt%, for example, can be 1.0-3.0wt%, 1.2-2.5wt%, 1.5-4.0wt%, 2.0-3.5wt%, 2.7-5.0wt%, 1.0wt%, 1.1wt%, 1.5wt%, 1.8wt%, 2.0wt%, 2.3wt%, 2.5wt%, 2.75wt%, 3.0wt%, 3.05wt%, 3.4wt%, 3.5wt%, 3.64wt%, 3.9wt%, 4.0wt%, 4.4wt%, 4.5wt%, 4.68wt%, 4.8wt%, 5.0wt%; Be preferably 2.0-4.0wt%; Most preferably be 2.5-3.5wt%.
Described Mn is the main alloy element of adding for obtaining desired corrosion resistance and strength level.Too much or the very few corrosion resistance that is all unfavorable for improving brazing material of the amount of Mn.And in containing the coated or packing layer of higher Si content, for improving in brazing product the corrosivity of curing brazing material again, Mn can play significant effect.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Mn is 0.6-1.8wt%, for example, can be 0.6-1.0wt%, 0.7-1.5wt%, 0.9-1.2wt%, 1.0-1.6wt%, 1.2-1.8wt%, 0.6wt%, 0.71wt%, 0.85wt%, 0.9wt%, 1.0wt%, 1.03wt%, 1.15wt%, 1.2wt%, 1.25wt%, 1.3wt%, 1.4wt%, 1.44wt%, 1.5wt%, 1.52wt%, 1.58wt%, 1.6wt%, 1.65wt%, 1.7wt%, 1.76wt%, 1.8wt%; Be preferably 0.8-1.6wt%; Most preferably be 1.0-1.4wt%.
Described Fe exists in all known commodity aluminium alloys, and in anticorrosion aluminium brazing material according to the present invention, Fe is not a kind of desired alloying element and deliberately adding, and the amount of Fe mainly relies on alloy material source.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Fe is 0.15-0.35wt%, can be for example 0.15-0.25wt%, 0.18-0.28wt%, 0.2-0.25wt%, 0.22-0.3wt%, 0.21-0.35wt%, 0.15wt%, 0.16wt%, 0.17wt%, 0.18wt%, 0.19wt%, 0.20wt%, 0.21wt%, 0.22wt%, 0.23wt%, 0.24wt%, 0.25wt%, 0.26wt%, 0.27wt%, 0.28wt%, 0.29wt%, 0.30wt%, 0.31wt%, 0.32wt%, 0.33wt%, 0.34wt%, 0.35wt%, be preferably 0.2-0.3wt%, most preferably be 0.22-0.28wt%.
Described Sr adds in brazing material on a small quantity can improve corrosion resistance.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Sr is 0.1-0.3wt%, for example, can be 0.1-0.2wt%, 0.12-0.15wt%, 0.17-0.24wt%, 0.19-0.22wt%, 0.21-0.3wt%, 0.1wt%, 0.11wt%, 0.15wt%, 0.17wt%, 0.18wt%, 0.2wt%, 0.21wt%, 0.22wt%, 0.23wt%, 0.24wt%, 0.25wt%, 0.26wt%, 0.27wt%, 0.28wt%, 0.29wt%, 0.3wt%; Be preferably 0.15-0.25wt%; Most preferably be 0.18-0.22wt%.
Described Cu can improve the intensity after soldering when content is higher.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Cu is 1-2wt%, for example, can be 1.0-1.5wt%, 1.2-1.6wt%, 1.3-1.4wt%, 1.25-1.75wt%, 1.8-2.0wt%, 1.0wt%, 1.01wt%, 1.1wt%, 1.16wt%, 1.2wt%, 1.25wt%, 1.3wt%, 1.39wt%, 1.4wt%, 1.45wt%, 1.5wt%, 1.52wt%, 1.6wt%, 1.64wt%, 1.7wt%, 1.78wt%, 1.8wt%, 1.83wt%, 1.9wt%, 2.0wt%; Be preferably 1.2-1.8wt%; Most preferably be 1.3-1.5%.
Described Cr can improve intensity and the sagging resistance after soldering.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Cr is 1.5-2.5wt%, can be for example 1.5-2.0wt%, 1.7-2.3wt%, 1.8-2.2wt%, 1.6-1.9wt%, 2.1-3.0wt%, 1.5wt%, 1.51wt%, 1.57wt%, 1.6wt%, 1.65wt%, 1.7wt%, 1.8wt%, 1.95wt%, 2.0wt%, 2.05wt%, 2.1wt%, 2.12wt%, 2.2wt%, 2.3wt%, 2.36wt%, 2.4wt%, 2.5wt%, 2.58wt%, 2.6wt%, 2.65wt%, 2.7wt%, 2.8wt%, 2.84wt%, 2.9wt%, 2.95wt%, 3.0wt%, be preferably 1.6-2.3wt%, most preferably be 1.8-2.1wt%.
Described Ti provides tiny uniform matrix for brazing material, this not only can improve the intensity of aluminium alloy brazing material, can also guarantee that aluminium alloy carries out uniform plastic deformation, avoid stress or strain in deformation process to concentrate, be conducive to the raising of aluminium alloy toughness.
In anticorrosion aluminium brazing material of the present invention, the percentage by weight of described Ti is 0.05-0.2wt%, for example, can be 0.05-0.1wt%, 0.07-0.15wt%, 0.09-0.18wt%, 0.11-0.13wt%, 0.12-0.2wt%, 0.05wt%, 0.06wt%, 0.07wt%, 0.08wt%, 0.09wt%, 0.1wt%, 0.11wt%, 0.12wt%, 0.13wt%, 0.14wt%, 0.15wt%, 0.16wt%, 0.17wt%, 0.18wt%, 0.19wt%, 0.2wt%; Be preferably 0.08-0.18wt%; Most preferably be 0.1-0.15wt%.
In sum, the preferred technical scheme of the present invention is:
A kind of anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si 2.0-4.0wt%, Mn 0.8-1.6wt%, Fe 0.2-0.3wt%, Sr 0.15-0.25wt%, Cu 1.2-1.8wt%, Cr 1.6-2.3wt%, Ti 0.08-0.18wt%, surplus Al.
The most preferred technical scheme of the present invention is:
A kind of anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si 2.5-3.5wt%, Mn 1.0-1.4wt%, Fe 0.22-0.28wt%, Sr 0.18-0.22wt%, Cu1.3-1.5wt%, Cr 1.8-2.1wt%, Ti 0.1-0.15wt%, surplus Al.
Preferably, in anticorrosion aluminium brazing material of the present invention, do not basically contain other impurity.Term " does not basically contain " to refer to and does not have the amount of adding wittingly significant this component in alloy composition to herein, the level of < 0.005% for example, more preferably do not have, be appreciated that and in desired final products, can there is the subsidiary element of trace and/or impurity.
" comprising " of the present invention, mean it except described component, can also contain other components, these other components are given described anticorrosion aluminium brazing material with different characteristics.In addition, " comprising " of the present invention, can also replace with enclosed " being " or " by ... make ".No matter which kind of composition anticorrosion aluminium brazing material of the present invention comprises, the percentage by weight sum of described anticorrosion aluminium brazing material is 100%.
Further, the present invention also provides the product that is suitable for soldering, it has matrix (core) and the clad lower than described matrix of the fusing point on described matrix of aluminum or aluminum alloy, and wherein clad is to be made by anticorrosion aluminium brazing material of the present invention.
Compared with prior art, anticorrosion aluminium brazing material of the present invention possesses hardness after splendid corrosion resistance and good soldering simultaneously.
Below in conjunction with embodiment, the present invention is described in further detail, but each following embodiment is only simple and easy example of the present invention, does not represent or limit the scope of the present invention, interest field of the present invention is as the criterion with claims.
The specific embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1:
An anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si3.5wt%, Mn1.0wt%, Fe0.28wt%, Sr0.18wt%, Cu1.5wt%, Cr1.8wt%, Ti0.15wt%, surplus Al.
The melt temperature (beginning melting) of the anticorrosion aluminium brazing material that the present embodiment obtains is 575 ℃, is exposed in the NaCl solution of 3wt%, and 24h has no corrosion; After soldering, 0.2% yield strength is 450MPa.
Embodiment 2:
An anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si2.5wt%, Mn1.4wt%, Fe0.22wt%, Sr0.22wt%, Cu1.3wt%, Cr2.1wt%, Ti0.1wt%, surplus Al.
The melt temperature (beginning melting) of the anticorrosion aluminium brazing material that the present embodiment obtains is 576 ℃, is exposed in the NaCl solution of 3wt%, and 24h has no corrosion; After soldering, 0.2% yield strength is 445MPa.
Embodiment 3:
An anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si4.0wt, Mn0.8wt%, Fe0.3wt%, Sr0.15wt%, Cu1.8wt%, Cr1.6wt%, Ti0.18wt%, surplus Al.
The melt temperature (beginning melting) of the anticorrosion aluminium brazing material that the present embodiment obtains is 574 ℃, is exposed in the NaCl solution of 3wt%, and 24h has no corrosion; After soldering, 0.2% yield strength is 440MPa.
Embodiment 4:
An anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si2.0wt%, Mn1.6wt%, Fe0.2wt%, Sr0.25wt%, Cu1.2wt%, Cr2.3wt%, Ti0.08wt%, surplus Al.
The melt temperature (beginning melting) of the anticorrosion aluminium brazing material that the present embodiment obtains is 574.5 ℃, is exposed in the NaCl solution of 3wt%, and 24h has no corrosion; After soldering, 0.2% yield strength is 438MPa.
Embodiment 5:
An anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si 5.0wt%, Mn 0.6wt%, Fe 0.35wt%, Sr 0.1wt%, Cu 2wt%, Cr 1.5wt%, Ti 0.2wt%, surplus Al.
The melt temperature (beginning melting) of the anticorrosion aluminium brazing material that the present embodiment obtains is 575.5 ℃, is exposed in the NaCl solution of 3wt%, and 24h has no corrosion; After soldering, 0.2% yield strength is 430MPa.
Embodiment 6:
An anticorrosion aluminium brazing material, it comprises the following component representing with percentage by weight wt%: Si 1.0wt%, Mn 1.8wt%, Fe 0.15wt%, Sr 0.3wt%, Cu 1wt%, Cr 2.5wt%, Ti 0.05wt%, surplus Al.
The melt temperature (beginning melting) of the anticorrosion aluminium brazing material that the present embodiment obtains is 572 ℃, is exposed in the NaCl solution of 3wt%, and 24h has no corrosion; After soldering, 0.2% yield strength is 431MPa.
The all expression constituent contents that use in description and claims are all appreciated that the modification that adds term " about " in all cases.Therefore, unless point out on the contrary, in description and claims given numerical value can be according to the present invention the desired character obtaining difference and change.At bottom line, and be not used in the scope that the application of equivalent principle is defined as to claim, each numerical value should be at least according to the value of reported significant digits by using common rounding method to make an explanation.And all scopes in this announcement are all appreciated that starting point and the end point values that comprises scope, comprise arbitrarily and all being included in wherein among a small circle.For example, certain scope " 1-10 " should be considered to comprise any and among a small circle all of (being included) between minimum of a value 1 and maximum 10; All initial to be more than or equal to 1 minimum of a value, and to be less than or equal among a small circle all that 10 maximum finishes, 5-10 for example, 3.3-6.7, or 1.5-8.8.All lists of references of mentioning in this file are all appreciated that all and include for reference.
Should be noted that and understand, in the situation that not departing from the desired the spirit and scope of the present invention of accompanying claim, can make various modifications and improvement to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not subject to the restriction of given any specific exemplary teachings.
Applicant's statement, above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (18)
1. an anticorrosion aluminium brazing material, it is characterized in that, comprise the following component representing with percentage by weight wt%: Si 1.0-5.0wt%, Mn 0.6-1.8wt%, Fe 0.15-0.35wt%, Sr 0.1-0.3wt%, Cu 1-2wt%, Cr 1.5-2.5wt%, Ti 0.05-0.2wt%, surplus Al.
2. anticorrosion aluminium brazing material according to claim 1, is characterized in that, the percentage by weight of described Si in described brazing material is 2.0-4.0wt%.
3. anticorrosion aluminium brazing material according to claim 2, is characterized in that, the percentage by weight of described Si in described brazing material is 2.5-3.5wt%.
4. anticorrosion aluminium brazing material according to claim 1 and 2, is characterized in that, the percentage by weight of described Mn in described brazing material is 0.8-1.6wt%.
5. anticorrosion aluminium brazing material according to claim 4, is characterized in that, the weight percent of described Mn in described brazing material is 1.0-1.4wt%.
6. according to the anticorrosion aluminium brazing material one of claim 1-3 Suo Shu, it is characterized in that, the percentage by weight of described Fe in described brazing material is 0.2-0.3wt%.
7. anticorrosion aluminium brazing material according to claim 6, is characterized in that, the percentage by weight of described Fe in described brazing material is 0.22-0.28wt%.
8. according to the anticorrosion aluminium brazing material one of claim 1-3 Suo Shu, it is characterized in that, the percentage by weight of described Sr in described brazing material is 0.15-0.25wt%.
9. anticorrosion aluminium brazing material according to claim 8, is characterized in that, the percentage by weight of described Sr in described brazing material is 0.18-0.22wt%.
10. according to the anticorrosion aluminium brazing material one of claim 1-3 Suo Shu, it is characterized in that, the percentage by weight of described Cu in described brazing material is 1.2-1.8wt%.
11. anticorrosion aluminium brazing materials according to claim 10, is characterized in that, the percentage by weight of described Cu in described brazing material is 1.3-1.5wt%.
12. according to the anticorrosion aluminium brazing material one of claim 1-3 Suo Shu, it is characterized in that, the percentage by weight of described Cr in described brazing material is 1.6-2.3wt%.
13. anticorrosion aluminium brazing materials according to claim 12, is characterized in that, the percentage by weight of described Cr in described brazing material is 1.8-2.1wt%.
14. according to the anticorrosion aluminium brazing material one of claim 1-3 Suo Shu, it is characterized in that, the percentage by weight of described Ti in described brazing material is 0.08-0.18wt%.
15. anticorrosion aluminium brazing materials according to claim 14, is characterized in that, the percentage by weight of described Ti in described brazing material is 0.1-0.15wt%.
16. anticorrosion aluminium brazing materials according to claim 1, it is characterized in that, described brazing material comprises the following component representing with percentage by weight wt%: Si 2.0-4.0wt%, Mn 0.8-1.6wt%, Fe 0.2-0.3wt%, Sr 0.15-0.25wt%, Cu 1.2-1.8wt%, Cr 1.6-2.3wt%, Ti 0.08-0.18wt%, surplus Al.
17. anticorrosion aluminium brazing materials according to claim 1, it is characterized in that, described brazing material comprises the following component representing with percentage by weight wt%: Si 2.5-3.5wt%, Mn 1.0-1.4wt%, Fe 0.22-0.28wt%, Sr 0.18-0.22wt%, Cu 1.3-1.5wt%, Cr 1.8-2.1wt%, Ti 0.1-0.15wt%, surplus Al.
18. 1 kinds of products that are suitable for soldering, have matrix and the clad lower than described matrix of the fusing point on described matrix of aluminum or aluminum alloy, it is characterized in that, described clad is by making according to the anticorrosion aluminium brazing material one of claim 1-17 Suo Shu.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210240255.6A CN102773626B (en) | 2012-07-11 | 2012-07-11 | Corrosion-resistant aluminum alloy soldering material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210240255.6A CN102773626B (en) | 2012-07-11 | 2012-07-11 | Corrosion-resistant aluminum alloy soldering material |
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| CN102773626A CN102773626A (en) | 2012-11-14 |
| CN102773626B true CN102773626B (en) | 2014-12-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103264238B (en) * | 2013-05-22 | 2015-08-05 | 慈溪市宜美佳电器有限公司 | A kind of anticorrosion aluminium solder and preparation method thereof |
| CN106624441A (en) * | 2016-12-29 | 2017-05-10 | 安徽华众焊业有限公司 | High-strength aluminum-base brazing filler metal and preparing method thereof |
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|---|---|---|---|---|
| US3917151A (en) * | 1973-02-08 | 1975-11-04 | Kaiser Aluminium Chem Corp | Vacuum brazing process |
| CN1390266A (en) * | 1999-11-17 | 2003-01-08 | 克里斯铝轧制品有限公司 | Aluminium brazing alloy |
| CN1726113A (en) * | 2002-12-13 | 2006-01-25 | 克里斯铝轧制品有限公司 | Brazing sheet product and method of its manufacture |
| CN101358311A (en) * | 2007-07-19 | 2009-02-04 | 古河Sky株式会社 | Aluminum alloy brazing sheet having high-strength and production method therefore |
| CN102112269A (en) * | 2008-06-02 | 2011-06-29 | 艾尔坎国际有限公司 | Aluminum alloy strips for brazed heat exchanger tubes |
| WO2011034496A3 (en) * | 2009-09-17 | 2011-07-07 | Sapa Heat Transfer Ab | Aluminium brazing sheet |
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2012
- 2012-07-11 CN CN201210240255.6A patent/CN102773626B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917151A (en) * | 1973-02-08 | 1975-11-04 | Kaiser Aluminium Chem Corp | Vacuum brazing process |
| CN1390266A (en) * | 1999-11-17 | 2003-01-08 | 克里斯铝轧制品有限公司 | Aluminium brazing alloy |
| CN1726113A (en) * | 2002-12-13 | 2006-01-25 | 克里斯铝轧制品有限公司 | Brazing sheet product and method of its manufacture |
| CN101358311A (en) * | 2007-07-19 | 2009-02-04 | 古河Sky株式会社 | Aluminum alloy brazing sheet having high-strength and production method therefore |
| CN102112269A (en) * | 2008-06-02 | 2011-06-29 | 艾尔坎国际有限公司 | Aluminum alloy strips for brazed heat exchanger tubes |
| WO2011034496A3 (en) * | 2009-09-17 | 2011-07-07 | Sapa Heat Transfer Ab | Aluminium brazing sheet |
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