CN102581508A - Intermediate-temperature zinc-aluminum soldering wire - Google Patents
Intermediate-temperature zinc-aluminum soldering wire Download PDFInfo
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- CN102581508A CN102581508A CN2012100513412A CN201210051341A CN102581508A CN 102581508 A CN102581508 A CN 102581508A CN 2012100513412 A CN2012100513412 A CN 2012100513412A CN 201210051341 A CN201210051341 A CN 201210051341A CN 102581508 A CN102581508 A CN 102581508A
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Abstract
The invention discloses an intermediate-temperature zinc-aluminum soldering wire, which comprises the following components: by mass percentage in 100%, 5-25% of Al (aluminum), 1-3% of Cu (copper), 0.2-1% of Si (silicon), 0.2-1.5% of Ni (nickel), and the balance Zn (zinc) to prepare solder by existing smelting process. Selected soldering flux is wrapped in the solder to prepare a flux-cored soldering wire. By the intermediate-temperature zinc-aluminum soldering wire, welding of joints of the Cu/Al is effectively realized, and compared with the prior art, the intermediate-temperature zinc-aluminum soldering wire is convenient in operation, high in welding efficiency and joint strength, stable in performance and low in comprehensive cost and is a connecting material which is wide in prospect and capable of realizing connection between different materials, such as copper and aluminum.
Description
Technical field
The present invention relates to a kind of in warm zinc-aluminium soldering welding wire, belong to dissimilar metal and connect the material technology field.
Background technology
Copper and aluminium obtain extensive use owing to have favorable conductive and heat conductivility in the fields such as transmission, exchange heat and small stores of electricity.The two is compared, and the conduction of aluminium and thermal conductivity be all not as copper, and says from production cost, because the aluminium market price is 1/3 of a copper.The density of aluminium also has only 1/3 of copper.Under the condition of not considering mechanical property and electric heating property, the aluminum member material cost is 1/9 of an identical copper member.So people adopt the technology of " with aluminium for copper " to reduce production costs in a lot of industries.In addition, this technology also helps the pressure of alleviating the copper resource.
The problem that " with aluminium for copper " technology brings aluminium/copper to connect is because the needs of conduction, heat conduction and sealing adopt welding method to realize the reliable connection of aluminium/copper usually.The method that aluminum bronze connects is a lot, starts with from different aspects such as technology and materials, can adopt forms such as friction welding (FW), flash welding, cold welding, melting and soldering.Wherein, friction welding (FW), flash welding can only be accomplished the butt joint of tubing or sheet material, are not suitable for overlap joint, and bonding strength is low, and consumable material is many; The cold welding equipment investment is many, and cost is high; The melting welding of aluminum/copper sleeve fragility is big, intensity is low, be prone to crack; Method for welding is controlled in strictness under the prerequisite of solder composition and soldering processes, also the good aluminium/copper sleeve of availability.But compare with Pressure Welding, the soldering production cost is low, and is strong to the adaptability of complex part, and has the online production ability that Pressure Welding does not possess, thereby soldering is very promising aluminum bronze interconnection technique.
At present, aluminium/copper brazing method mainly contains vacuum brazing, contact reaction brazing and gas brazing.Though wherein contact reaction brazing and vacuum brazing can reach enough weld strengths, the welding equipment investment is big, and operation and maintenance cost is high, complex technical process.The gas brazing technological operation is easy, and production efficiency is high, and processing cost is low.
The solder selection is one of key issue of aluminium/copper brazing technology.The solder that aluminum current/copper brazing is selected for use usually comprises Al-Si system, Zn-Sn system and Cd-Zn brazing filler metal.Xue of Nanjing Aero-Space University pine and cypress adopt the CsF-AlF3 brazing flux add the Si powder and money base and the collocation of Al-Si base intermediate temperature solder [Xue Songbai, Dong Jian .Al/Cu pipe foreign material gas brazing connection [J]. weld 2003; 47 (12): 23-25]; The middle temperature brazing of having realized the copper aluminum pipe connects, but the strength of joint of Al-Si solder brazing aluminium/copper is not high, and fusing point is too high; Welding temperature is up to 590～610 ℃, the easy burning of aluminum mother plate during with high frequency brazing or gas brazing; Also not high, the not corrosion-resistant and easy pore that produces of reactive brazing flux that be used of the strength of joint of Zn-Sn solder brazing; Have data record Cd-Zn alloy be best copper and aluminium welding at present connect material [Zhao Yue. refrigerator pipe-line system copper one aluminum pipe brazing research [D]. Jinan: Shandong University; 2004:6-7]; Main cause is that the electrode potential and the Cu of its solder is approaching, can not quicken the electrochemical corrosion of weld seam.But this solder has severe toxicity because of Cd, and rare research and application; Therefore, be necessary to study the solder that a kind of brazing temperature is suitable, the joint combination property is good.
The Zn-Al brazing filler metal is that more promising aluminium/brazing connects and uses solder.The Zn-Al solder is a kind of middle temperature aluminium alloy brazing filler metal commonly used, and serviceability temperature is between 377～550 ℃.Because the mutual solubility of zinc-aluminium is bigger, solder can spread in mother metal with quickish speed when in brazed seam, flowing, and therefore, the common tool of gained joint is used higher-strength.
Summary of the invention
The objective of the invention is in order to solve aluminum current/copper brazing soldering welding wire strength of joint commonly used low; The problem of spreading property difference, and provide a kind of fusing point to be lower than 500 ℃, spreading property is good; Strength of joint is high; Low price, warm zinc-aluminium soldering welding wire during process is simple, with satisfy engineering use in to the needs of aluminium/copper brazing.
To achieve these goals, technical scheme of the present invention is:
Warm zinc-aluminium soldering welding wire in a kind of, content is 5%～25% by component: Al by mass percentage, and Cu is 1%～3%, and Si is 0.2%～1%, and Ni is 0.2%～1.5%, and all the other process solder for Zn, and the mass percent total content is 100%.
Above-mentioned solder adopts existing smelting technique to make, and selects QJ201 brazing flux or fluoaluminic acid caesium brazing flux for use, adopts existing solid wire Hubbing method, and said brazing flux is rolled in preparation patent medicine core soldering welding wire in the solder.
Above-mentioned solder can also be processed forms such as bulk, bar-shaped, paper tinsel band, powder.Brazing flux covers solder and uses outward during soldering.Bulk adopt mechanical means to cut apart acquisition after wherein can be smelted; Bar-shaped and paper tinsel band can adopt the method for hot investment casting or hot extrusion to obtain; Powder can adopt the gas atomization method to obtain.
Of the present invention a kind of in warm zinc-aluminium soldering the welding wire advantage and the beneficial effect that have:
1, soldering wire melting temperature range of the present invention is 415-468 ℃, and brazing temperature can be low to moderate 500 ℃.The burning of aluminium alloy mother metal when effectively having avoided soldering helps obtaining high performance soldered fitting.Brazing temperature reduces, and effectively reduces energy resource consumption;
2, soldering welding wire of the present invention has effectively been realized the welding to the Cu/Al joint, and strength of joint is good; The joint shearing strength can reach 51.80MPa to 59.20MPa; Stable performance, integrated cost is low, is very promising a kind of connection material of realizing that the copper Al dissimilar materials connects.
The specific embodiment
Below will combine embodiment that technical scheme of the present invention is done further to detail.
Embodiment 1:
Content matches component by mass percentage: Al is 5%%, and Cu is 1%%, and Si is 0.2%, and Ni is 1.5%, and all the other are Zn, and the mass percent total content is 100%.
Said components adopts existing smelting technique to make solder, selects fluoaluminic acid caesium brazing flux for use, brazing flux is rolled in is prepared into flux-cored wire in the solder.Prepared soldering welding wire is identical with the solid wire Hubbing method.
Adopt gas brazing fine copper and 6063 aluminium alloys, the joint shearing strength reaches 59.20MPa.
Embodiment 2:
Content matches component by mass percentage: Al is 22%%, and Cu is 1%%, and Si is 0.5%, and Ni is 0.2%, and all the other are Zn, and the mass percent total content is 100%.
Said components adopts existing smelting technique to make solder, selects the QJ201 brazing flux for use, brazing flux is rolled in is prepared into flux-cored wire in the solder.Prepared soldering welding wire is identical with the solid wire Hubbing method.
Adopt gas brazing fine copper and fine aluminium, the joint shearing strength reaches 51.80MPa.
Embodiment 3:
Content matches component by mass percentage: Al is 25%%, and Cu is 3%%, and Si is 1%, and Ni is 1.5%, and all the other are Zn, and the mass percent total content is 100%.
Said components adopts existing smelting technique to make solder, selects fluoaluminic acid caesium brazing flux for use, brazing flux is rolled in is prepared into flux-cored wire in the solder.Prepared soldering welding wire is identical with the solid wire Hubbing method.
Adopt gas brazing fine copper and fine aluminium, the joint shearing strength reaches 55.40MPa.
The above is merely the preferred embodiments of the present invention, is not restricted to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (2)
1. warm zinc-aluminium soldering welding wire in a kind, it is characterized in that: content is 5%～25% by component: Al by mass percentage, Cu is 1%～3%; Si is 0.2%～1%; Ni is 0.2%～1.5%, and all the other process solder for Zn, and the mass percent total content is 100%; Said solder adopts existing smelting technique to make, and the brazing flux of selecting for use is rolled in preparation patent medicine core soldering welding wire in the solder.
2. warm zinc-aluminium soldering welding wire in according to claim 1 is characterized in that: described brazing flux is any in QJ201 brazing flux or the fluoaluminic acid caesium brazing flux.
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| CN2012100513412A CN102581508A (en) | 2012-03-01 | 2012-03-01 | Intermediate-temperature zinc-aluminum soldering wire |
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| CN2012100513412A CN102581508A (en) | 2012-03-01 | 2012-03-01 | Intermediate-temperature zinc-aluminum soldering wire |
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| CN102581508A true CN102581508A (en) | 2012-07-18 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935559A (en) * | 2012-12-04 | 2013-02-20 | 郑州机械研究所 | Composite zinc-aluminum flux cored wire containing beryllium and magnesium and rubidium salt and preparation method of flux cored wire |
| CN103302417A (en) * | 2013-06-03 | 2013-09-18 | 北京科技大学 | Zn-Al-Cu-based brazing material and preparation method thereof |
| CN103639615A (en) * | 2013-11-28 | 2014-03-19 | 青岛蓝图文化传播有限公司市南分公司 | Braze solder for air conditioner and brazing flux |
| CN106392368A (en) * | 2016-11-28 | 2017-02-15 | 江苏阳明船舶装备制造技术有限公司 | High-temperature Zn-based soft solder for soldering aluminum and copper and welding method |
| CN106624440A (en) * | 2016-12-14 | 2017-05-10 | 安徽华众焊业有限公司 | Flux-cored wire for copper-aluminum welding |
| CN106624438A (en) * | 2016-11-30 | 2017-05-10 | 安徽华众焊业有限公司 | Zinc-aluminum solder |
| CN107073658A (en) * | 2015-10-29 | 2017-08-18 | 松下知识产权经营株式会社 | The joint construction of joint method and heat exchanger aluminum pipe of the heat exchanger aluminum pipe welding with solder and using its heat exchanger aluminum pipe |
| CN109940307A (en) * | 2019-05-08 | 2019-06-28 | 杭州辰卓科技有限公司 | A kind of welding material and its technique of high aluminium content zinc-aluminium damping alloy |
| CN111331278A (en) * | 2020-03-26 | 2020-06-26 | 中机智能装备创新研究院(宁波)有限公司 | High-corrosion-resistance Zn-Al solder powder, solder paste and preparation method |
| CN113523647A (en) * | 2021-07-30 | 2021-10-22 | 浙江工业职业技术学院 | Preparation method and system of copper alloy welding wire and sealing structure |
| CN113579555A (en) * | 2021-06-30 | 2021-11-02 | 郑州机械研究所有限公司 | Zinc-aluminum flux-cored brazing filler metal for copper-aluminum brazing and preparation method thereof |
| CN114346518A (en) * | 2021-12-03 | 2022-04-15 | 中车永济电机有限公司 | Application of flux-cored solder and brazing method |
| CN114789308A (en) * | 2022-04-18 | 2022-07-26 | 金华市双环钎焊材料有限公司 | High-performance seamless flux-cored wire containing rare earth elements for copper and aluminum and manufacturing method thereof |
| CN114871630A (en) * | 2022-06-27 | 2022-08-09 | 浙江亚通焊材有限公司 | Welding material for deep cooling container brazing and deep cooling container brazing process |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935559A (en) * | 2012-12-04 | 2013-02-20 | 郑州机械研究所 | Composite zinc-aluminum flux cored wire containing beryllium and magnesium and rubidium salt and preparation method of flux cored wire |
| CN102935559B (en) * | 2012-12-04 | 2015-03-04 | 郑州机械研究所 | Composite zinc-aluminum flux cored wire containing beryllium and magnesium and rubidium salt and preparation method of flux cored wire |
| CN103302417A (en) * | 2013-06-03 | 2013-09-18 | 北京科技大学 | Zn-Al-Cu-based brazing material and preparation method thereof |
| CN103302417B (en) * | 2013-06-03 | 2015-08-26 | 北京科技大学 | A kind of Zn-Al-Cu base solder and preparation method thereof |
| CN103639615A (en) * | 2013-11-28 | 2014-03-19 | 青岛蓝图文化传播有限公司市南分公司 | Braze solder for air conditioner and brazing flux |
| CN107073658A (en) * | 2015-10-29 | 2017-08-18 | 松下知识产权经营株式会社 | The joint construction of joint method and heat exchanger aluminum pipe of the heat exchanger aluminum pipe welding with solder and using its heat exchanger aluminum pipe |
| CN107073658B (en) * | 2015-10-29 | 2020-05-22 | 松下知识产权经营株式会社 | Solder for welding heat exchanger aluminum pipe, and method and structure for joining heat exchanger aluminum pipe using same |
| CN106392368A (en) * | 2016-11-28 | 2017-02-15 | 江苏阳明船舶装备制造技术有限公司 | High-temperature Zn-based soft solder for soldering aluminum and copper and welding method |
| CN106624438B (en) * | 2016-11-30 | 2019-02-19 | 安徽华众焊业有限公司 | Zinc-aluminum brazing filler metal |
| CN106624438A (en) * | 2016-11-30 | 2017-05-10 | 安徽华众焊业有限公司 | Zinc-aluminum solder |
| CN106624440A (en) * | 2016-12-14 | 2017-05-10 | 安徽华众焊业有限公司 | Flux-cored wire for copper-aluminum welding |
| CN106624440B (en) * | 2016-12-14 | 2019-02-19 | 安徽华众焊业有限公司 | The flux-cored wire of copper aluminium welding |
| CN109940307A (en) * | 2019-05-08 | 2019-06-28 | 杭州辰卓科技有限公司 | A kind of welding material and its technique of high aluminium content zinc-aluminium damping alloy |
| CN111331278A (en) * | 2020-03-26 | 2020-06-26 | 中机智能装备创新研究院(宁波)有限公司 | High-corrosion-resistance Zn-Al solder powder, solder paste and preparation method |
| CN113579555A (en) * | 2021-06-30 | 2021-11-02 | 郑州机械研究所有限公司 | Zinc-aluminum flux-cored brazing filler metal for copper-aluminum brazing and preparation method thereof |
| CN113523647A (en) * | 2021-07-30 | 2021-10-22 | 浙江工业职业技术学院 | Preparation method and system of copper alloy welding wire and sealing structure |
| CN114346518A (en) * | 2021-12-03 | 2022-04-15 | 中车永济电机有限公司 | Application of flux-cored solder and brazing method |
| CN114789308A (en) * | 2022-04-18 | 2022-07-26 | 金华市双环钎焊材料有限公司 | High-performance seamless flux-cored wire containing rare earth elements for copper and aluminum and manufacturing method thereof |
| CN114871630A (en) * | 2022-06-27 | 2022-08-09 | 浙江亚通焊材有限公司 | Welding material for deep cooling container brazing and deep cooling container brazing process |
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Application publication date: 20120718 |