CN1970213A - Aluminum alloy intermediate temperature solder for braze welding - Google Patents
Aluminum alloy intermediate temperature solder for braze welding Download PDFInfo
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- CN1970213A CN1970213A CNA2006101704712A CN200610170471A CN1970213A CN 1970213 A CN1970213 A CN 1970213A CN A2006101704712 A CNA2006101704712 A CN A2006101704712A CN 200610170471 A CN200610170471 A CN 200610170471A CN 1970213 A CN1970213 A CN 1970213A
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Abstract
It relates to an aluminum alloy solder with its components' mass percentage 16-20%Cu,5-8%Si,0.2-2.0%Mn,0-2%Mg, and the rest being Al. Small portion of Ti and B fine grains can be added to the solder to improve processing performance. The molten temperature of solder ranges 500-540DEG C, solder welding temperature 540-570DEG C, suitable for aluminum alloy soldering with the solids line temperature below 540DEG C. The solder can be made into different types like blocks, quick condensed strips or bars, suitable for vacuum soldering, protective solder and flame solder. The solder 6A02,2A5 alloy joint has tensile strength bigger than 100MPa, joint shearing force bigger than 80Mpa, without significant reduction of the joint strength after 200h salt fog corrosion.
Description
Technical field
The present invention is a kind of aluminium alloy middle temperature brazing solder, belongs to the technical field that is welded to connect of aluminium alloy.
Background technology
Aluminium alloy has in light weight, good corrosion resistance, characteristic such as heat conduction, electric conductivity are good.In the application of dual-use industrial circles such as Aeronautics and Astronautics, electronics, automobile more and more widely.But, fusing point is lower, the solder of good combination property owing to lack, and the fusing point of ripe Al-Si series solder is more than 577 ℃, so, the soldering of aluminium alloy also is confined on fine aluminium and 3A21, the indivedual trades mark such as 6063, and the higher aluminium alloy of a large amount of intensity ranks still can't carry out soldering.On the other hand, because the light-weighted demand of product, the demand of high-strength aluminum alloy being carried out soldering is more and more urgent, only the soldering of fine aluminium and 3A21, low-intensity rank aluminium alloys such as 6063 can not have been satisfied the specification requirement to structural strength, rigidity, therefore research and develop the required low melting point solder of high strength aluminium alloy brazing, and it is put into practice become one of key technology that the aluminium alloy element manufacturing needs to be resolved hurrily.
At present, alloy systems such as Al-Ge, Al-Ge-Si, Al-Cu-Si, Ag-Al-Cu, Zn-Al have been adopted in the research of low-temperature brazing filler metal in the aluminium alloy, but there are technical problems such as the bad or joint performance difference of manufacturability mostly, still do not have a kind of solder of received good combination property.Poor as Al-Ge, Al-Ge-Si solder joint filling manufacturability, and the cost height; Al-Cu-Si brazing filler metal corrosion resistance is relatively poor, and the solder processing technology is poor; Containing the Zn solder is not suitable for vacuum brazing etc. and has different shortcomings separately.It is usually to obtain to reduce fusing point by adding units such as nickel, tin on the basis at Al-Cu-Si that the people is arranged in recent years, improves the effect of solder combination property, but all there is shortcoming separately in every kind of solder, for example preparation difficulty, corrosion resistance is poor, and manufacturability is bad etc., does not all obtain extensive use.Therefore studying the solder that a kind of brazing temperature is suitable, brazing manufacturability is good, the joint combination property is good becomes the technical problem that the aluminium alloy processing industry needs to be resolved hurrily.
Summary of the invention
The present invention is just at the problem of present technical existence and design a kind of aluminium alloy middle temperature brazing solder is provided, its objective is the soldering problem that solves heat-treatable strengthened aluminum alloy and Birmasil, guarantee good brazing manufacturability and joint combination property, brazing temperature is 540～570 ℃.
The objective of the invention is to realize by following measure:
This kind aluminium alloy middle temperature brazing solder is characterized in that: the chemical composition and the mass percent thereof of solder are: 16～20%Cu, 5～8%Si, 0.2～2.0%Mn, 0～2%Mg, all the other are Al.In addition, also can add the crystal grain thinning of a small amount of Ti, B element or add a small amount of rare earth element in the solder to improve manufacturability.The fusion temperature scope of solder is 500～540 ℃, and 540～570 ℃ of brazing temperatures can be used for the soldering of solidus temperature at the aluminium alloy more than 540 ℃.The process for soldering that this solder is fit to comprises vacuum brazing, brazing in controlled atmosphere, gas brazing etc.Because having added this solder of Mn element has the performance that good rapid solidification prepares the paper tinsel band, the employing rapid solidification method can be prepared the solder paper tinsel band about thickness 0.05mm, to make things convenient for the interpolation of solder.Adopt this solder, 6061 aluminium alloys of vacuum brazing technique soldering and 2A50 aluminum alloy joint can be avoided the burning of matrix material effectively, and soldering is after shearing strength of joint is greater than 80MPa after the T6 heat treatment, and joint tensile strength is greater than 100MPa.Soldering 6061, the 2A50 aluminum alloy joint has good corrosion resistance, joint is through 35 ℃, 200h, 5% NaCl salt air corrosion, and through 3.5% NaCl solution, 28 ℃, behind the immersion corrosion of 200h, strength of joint does not obviously reduce.
The smelting of solder is identical with the common aluminum alloy smelting process.Solder can use with forms such as block, bar-shaped, paper tinsel band, powder.Bulk can be smelted the back and be adopted mechanical means to cut apart acquisition; Bar-shaped solder can adopt hot investment casting or hot-extrusion method to obtain; The paper tinsel band adopts rotation copper roller quick setting method to obtain, and also can adopt the method for composite rolling to obtain; Powder can adopt the gas atomization method to obtain.Solder can adopt technologies such as vacuum brazing, brazing in controlled atmosphere, gas brazing to be used for the soldering of burning temperature at the heat-treatable strengthened aluminum alloy more than 540 ℃ or Birmasil and member thereof.
The specific embodiment
Below with reference to embodiment technical solution of the present invention is further described:
Embodiment 1:
Solder main chemical compositions and mass percent thereof are: 18%Cu, 7%Si, 1%Mn, 1%Mg, 0.1% (B+Ti), all the other are Al.Adopt the common aluminum alloy smelting process to smelt into ingot casting, under the argon shield environment, adopt rotation copper roller quick setting method to prepare the solder paper tinsel band of the about 0.05mm of thickness then, be used for the vacuum brazing of 2A50 alloy.Al alloy parts is removed surface contaminants and oxide-film through Chemical cleaning before the soldering, in the middle of solder folder and the brazed seam, by fixedly fed to boiler soldering of anchor clamps.Brazing process vacuum is better than 1 * 10
-2Pa, 10 ℃/min of programming rate, 550 ℃ of brazing temperatures, temperature retention time 10min.Carry out T6 heat treatment after the soldering.Joint tensile strength is greater than 100MPa, and shear strength is greater than 80MPa.Joint is through 35 ℃, 200h, and 5% NaCl salt air corrosion, and through 3.5% NaCl solution, 28 ℃, after the immersion of 200h, intensity does not obviously reduce.
Embodiment 2
Solder main chemical compositions and mass percent thereof are: 18%Cu, 7%Si, 1%Mn, 0.1% (B+Ti), trace rare-earth, all the other are Al.Adopt the common aluminum alloy smelting process to smelt into ingot casting, under the argon shield environment, adopt rotation copper roller quick setting method to prepare the solder paper tinsel band of the about 0.05mm of thickness then, be used for the vacuum brazing of 6A02 aluminium alloy impeller.Adopt reserve energy spot welding machine that two-layer solder spot welding is positioned on the faying face, the assembling back is adopted anchor clamps to step up and is fixed, and carries out soldering in vacuum brazing furnace, and brazing process parameter is identical with embodiment 1.The impeller appearance forming is good after the soldering, and joint tensile strength is greater than 100MPa.
Claims (3)
1. aluminium alloy middle temperature brazing solder, it is characterized in that: the chemical composition and the mass percent thereof of solder are: 16～20%Cu, 5～8%Si, 0.2～2.0%Mn, 0～2%Mg, all the other are Al.
2. aluminium alloy middle temperature brazing solder according to claim 1 is characterized in that: the chemical composition and the mass percent thereof of solder are: 18% ± 0.5%Cu, 7% ± 0.5%Si, 1% ± 0.5%Mn, 1% ± 0.5%Mg, all the other are Al.
3. aluminium alloy middle temperature brazing solder according to claim 1 is characterized in that: the chemical composition and the mass percent thereof of solder are: 16～20%Cu, 5～8%Si, 0.2～2.0%Mn, 0～2%Mg, 0.1% (B+Ti), all the other are Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101704712A CN100427261C (en) | 2006-12-30 | 2006-12-30 | Aluminum alloy intermediate temperature solder for braze welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101704712A CN100427261C (en) | 2006-12-30 | 2006-12-30 | Aluminum alloy intermediate temperature solder for braze welding |
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| Publication Number | Publication Date |
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| CN1970213A true CN1970213A (en) | 2007-05-30 |
| CN100427261C CN100427261C (en) | 2008-10-22 |
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| CNB2006101704712A Active CN100427261C (en) | 2006-12-30 | 2006-12-30 | Aluminum alloy intermediate temperature solder for braze welding |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152024A (en) * | 2011-04-28 | 2011-08-17 | 浙江大学 | High-strength aluminum alloy brazing filler metal with melting point being lower than 500 DEG C and preparation method thereof |
| CN102941416A (en) * | 2012-11-05 | 2013-02-27 | 芜湖沃多福新材料有限责任公司 | Alloy brazing filler metal of brazing-flux-free brazing foamed aluminum core veneer and preparation method thereof |
| CN103264238A (en) * | 2013-05-22 | 2013-08-28 | 慈溪市宜美佳电器有限公司 | Anti-corrosion aluminum alloy brazing filler metal and preparation method thereof |
| CN103567655A (en) * | 2012-07-26 | 2014-02-12 | 北京有色金属与稀土应用研究所 | Al-Si-Cu-Mg aluminum-base alloy foil solder and preparation method thereof |
| CN103624417A (en) * | 2013-11-08 | 2014-03-12 | 上海龙烁焊材有限公司 | High-strength intermediate temperature vacuum brazing filler metal and preparation method thereof |
| CN103785966A (en) * | 2013-12-02 | 2014-05-14 | 青岛蓝图文化传播有限公司市南分公司 | Aluminum and silicon-based brazing filler metal |
| CN103801854A (en) * | 2014-03-06 | 2014-05-21 | 河南晶泰航空航天高新材料科技有限公司 | Preparation method for foil-shaped aluminum-based nano-brazing material for silicon carbide particle-reinforced aluminum-based composite material |
| CN103921011A (en) * | 2014-03-31 | 2014-07-16 | 安徽维斯佳节能门窗有限公司 | American window solder and seamless welding method using same |
| CN104191104A (en) * | 2014-08-28 | 2014-12-10 | 青岛永通电梯工程有限公司 | Low-temperature brazing filler metal for Al-Si-Mg system aluminum alloy brazing |
| CN104353938A (en) * | 2014-09-22 | 2015-02-18 | 青岛蓝图文化传播有限公司市南分公司 | Aluminum-silicon brazing filler metal |
| CN104858566A (en) * | 2015-06-09 | 2015-08-26 | 中国电子科技集团公司第十四研究所 | Aluminum-base low-melting-point vacuum brazing filler and preparation method thereof |
| CN105436739A (en) * | 2015-12-02 | 2016-03-30 | 贵州理工学院 | Medium temperature aluminum alloy brazing solder and preparing 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 |
| CN108115363A (en) * | 2017-12-13 | 2018-06-05 | 北京华航无线电测量研究所 | A kind of vacuum brazing technique method of aluminium alloy heat of transformation control component |
| CN113167288A (en) * | 2018-12-10 | 2021-07-23 | 大金工业株式会社 | Closed impeller and manufacturing method thereof |
| CN113458651A (en) * | 2021-07-13 | 2021-10-01 | 广东省科学院中乌焊接研究所 | Aluminum-based interlayer alloy and preparation method and application thereof |
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| CN102764938B (en) * | 2012-07-18 | 2014-08-20 | 熊进 | Aluminum soldering paste |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05138393A (en) * | 1991-11-22 | 1993-06-01 | Showa Alum Corp | Filler metal for al-fe alloy |
| JP2859019B2 (en) * | 1992-01-30 | 1999-02-17 | 株式会社神戸製鋼所 | Aluminum alloy filler metal for molding dies and method of manufacturing the same |
| JP3398204B2 (en) * | 1994-02-15 | 2003-04-21 | 日本発条株式会社 | Brazing filler metal for aluminum alloys and aluminum alloy products |
| CN1215918C (en) * | 2002-09-27 | 2005-08-24 | 哈尔滨工业大学 | Self-drill brazing filler material of aluminium alloy and aluminium base composite and preparation method |
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2006
- 2006-12-30 CN CNB2006101704712A patent/CN100427261C/en active Active
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152024B (en) * | 2011-04-28 | 2012-10-03 | 浙江大学 | High-strength aluminum alloy brazing filler metal with melting point being lower than 500 DEG C and preparation method thereof |
| CN102152024A (en) * | 2011-04-28 | 2011-08-17 | 浙江大学 | High-strength aluminum alloy brazing filler metal with melting point being lower than 500 DEG C and preparation method thereof |
| CN103567655A (en) * | 2012-07-26 | 2014-02-12 | 北京有色金属与稀土应用研究所 | Al-Si-Cu-Mg aluminum-base alloy foil solder and preparation method thereof |
| CN102941416A (en) * | 2012-11-05 | 2013-02-27 | 芜湖沃多福新材料有限责任公司 | Alloy brazing filler metal of brazing-flux-free brazing foamed aluminum core veneer and preparation method thereof |
| CN103264238A (en) * | 2013-05-22 | 2013-08-28 | 慈溪市宜美佳电器有限公司 | Anti-corrosion aluminum alloy brazing filler metal and preparation method thereof |
| CN103624417A (en) * | 2013-11-08 | 2014-03-12 | 上海龙烁焊材有限公司 | High-strength intermediate temperature vacuum brazing filler metal and preparation method thereof |
| CN103785966A (en) * | 2013-12-02 | 2014-05-14 | 青岛蓝图文化传播有限公司市南分公司 | Aluminum and silicon-based brazing filler metal |
| CN103801854B (en) * | 2014-03-06 | 2016-01-13 | 河南晶泰航空航天高新材料科技有限公司 | A kind of preparation method of enhancing aluminum-base composite material by silicon carbide particles foil-like aluminum-base nano solder |
| CN103801854A (en) * | 2014-03-06 | 2014-05-21 | 河南晶泰航空航天高新材料科技有限公司 | Preparation method for foil-shaped aluminum-based nano-brazing material for silicon carbide particle-reinforced aluminum-based composite material |
| CN103921011A (en) * | 2014-03-31 | 2014-07-16 | 安徽维斯佳节能门窗有限公司 | American window solder and seamless welding method using same |
| CN104191104A (en) * | 2014-08-28 | 2014-12-10 | 青岛永通电梯工程有限公司 | Low-temperature brazing filler metal for Al-Si-Mg system aluminum alloy brazing |
| CN104353938A (en) * | 2014-09-22 | 2015-02-18 | 青岛蓝图文化传播有限公司市南分公司 | Aluminum-silicon brazing filler metal |
| CN104858566A (en) * | 2015-06-09 | 2015-08-26 | 中国电子科技集团公司第十四研究所 | Aluminum-base low-melting-point vacuum brazing filler and preparation method thereof |
| CN105436739A (en) * | 2015-12-02 | 2016-03-30 | 贵州理工学院 | Medium temperature aluminum alloy brazing solder and preparing 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 |
| CN108115363A (en) * | 2017-12-13 | 2018-06-05 | 北京华航无线电测量研究所 | A kind of vacuum brazing technique method of aluminium alloy heat of transformation control component |
| CN108115363B (en) * | 2017-12-13 | 2019-08-30 | 北京华航无线电测量研究所 | A kind of vacuum brazing technique method of aluminium alloy heat of transformation control component |
| CN113167288A (en) * | 2018-12-10 | 2021-07-23 | 大金工业株式会社 | Closed impeller and manufacturing method thereof |
| US11828293B2 (en) | 2018-12-10 | 2023-11-28 | Daikin Industries, Ltd | Closed impeller and method of manufacturing the same |
| CN113458651A (en) * | 2021-07-13 | 2021-10-01 | 广东省科学院中乌焊接研究所 | Aluminum-based interlayer alloy and preparation method and application thereof |
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| CN100427261C (en) | 2008-10-22 |
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