CN101074130A - Method for welding aluminum-copper dissmilar metal - Google Patents
Method for welding aluminum-copper dissmilar metal Download PDFInfo
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- CN101074130A CN101074130A CN 200710122672 CN200710122672A CN101074130A CN 101074130 A CN101074130 A CN 101074130A CN 200710122672 CN200710122672 CN 200710122672 CN 200710122672 A CN200710122672 A CN 200710122672A CN 101074130 A CN101074130 A CN 101074130A
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Abstract
A method for welding aluminum-copper dissimilar metal can prevent interaction diffusion between weld internal atoms and meet high-temperature requirement. The transient silver-magnesium-nickel composite metal consists of Ag 99.4-99.5 wt%, Ni 0.26-0.30 wt% and Mg 0.24-0.30 wt%.
Description
Technical field
The present invention relates to welding technique, be specifically related to method for welding dissimilar metal.
Background technology
The different metal materials welding is the important difficult problem in the welding technology field, because dissimilar metal causes its welding process more more complex than metal of the same race in the significant difference of aspects such as physicals, chemical property, quality of weld joint is difficult to guarantee.
Aluminium and aluminium alloy and copper and copper alloy adopt diffusion welding or braze-welding to realize usually, and wherein the latter also is known as the aluminium weldering.Diffusion welding (comprising cold pressure welding and hot bonding) mainly be with copper and aluminium at a certain temperature (normal temperature or high temperature) weld is pressurizeed and keeps certain hour, realize mutually combining between atoms metal, thereby reach the purpose of welding; Braze-welding is being welded the interatomic combination of the wetting realization in metallic surface with the method for melting welding (argon tungsten-arc welding) with solder fusing, thereby reach the purpose of welding, scolder is generally the Ag-Cu-Zn alloy, the patent of domestic existing this respect, for example Chinese patent CN91106860.0.
Above-mentioned welding process can reach the purpose of welding, also can satisfy service requirements generally speaking, but for special environment for use and requirement, as under comparatively high temps (150 ℃) or life-time service condition, just misses one's aim with the aforesaid method welding.Its major cause is that above-mentioned welding process belongs to soldering and diffusion welding category in essence, with respect to melting welding or vacuum electron beam welding, its weld strength is much lower, and tissue is unstable, under comparatively high temps and long-time working conditions, diffuse to form the fragility phase mutually between the inner aluminium of weld seam, copper atom, the existence of fragility phase can make welding joint become fragile and lose efficacy.
As seen, if can find a kind of suitable transition metal material, adopt the welding process of melting welding and vacuum electron beam welding just thoroughly to stop to diffuse to form fragility mutually mutually between the inner atom of weld seam fully, prevent that joint from passing and the inefficacy that becomes fragile in time, thereby satisfy welding joint in comparatively high temps, life-time service requirement.
Summary of the invention
The object of the present invention is to provide a kind of can thoroughly stopping to diffuse to form the fragility phase mutually between the inner atom of weld seam, welding gained aluminum bronze dissimilar metal satisfies the method for welding aluminum-copper dissmilar metal of comparatively high temps, life-time service requirement.
Method for welding aluminum-copper dissmilar metal of the present invention, aluminum metal wherein to be connected is an aluminum or aluminum alloy, copper metal to be connected is copper or copper alloy, it welds aluminum metal and copper metal respectively with the transition metal two ends, described transition metal adopts silver-colored magnesium nickel composite metal material, and its composition weight percent is Ag99.4%～99.5%, Ni 0.26%～0.30%, Mg 0.24%～0.30%.
Aforesaid method for welding aluminum-copper dissmilar metal, described with aluminum metal and copper metal respectively with the welding of transition metal two ends, this welding process is melting welding or vacuum electron beam welding.
Effect of the present invention is: method for welding aluminum-copper dissmilar metal of the present invention, it adopts silver-colored magnesium nickel composite metal as transition metal, this transition metal and copper metal and aluminum metal all have good (melting welding or vacuum electron beam welding) weldability, and transition metal itself has higher intensity and toughness, thereby improved the reliability of aluminum bronze dissimilar metal welding greatly.Adopt method of the present invention, can thoroughly stop to diffuse to form the fragility phase mutually between the inner atom of weld seam, the transition metal that adopts when preventing to weld is passed and the inefficacy that becomes fragile in time, test shows, transition metal welding joint place intensity can reach more than 85% of mother metal, and welding gained aluminum bronze dissimilar metal satisfies the job requirement of comparatively high temps (working temperature can reach 150 ℃), life-time service.
Description of drawings
Fig. 1 is an aluminum bronze dissimilar metal welding synoptic diagram of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, adopt silver-colored magnesium nickel composite metal as transition metal, aluminum pipe and the copper pipe of thickness less than 2mm welded with silver-colored magnesium nickel composite metal two ends respectively, welding process is melting welding (argon tungsten-arc welding TIG).This silver magnesium nickel composite metal composition weight percent is Ag 99.4%, Ni 0.30%, Mg 0.30%, is shaped as and wall thickness, isodiametric ring-types such as soldered aluminum pipe and copper pipe.
Welding rear transition metal (silver-colored magnesium nickel composite metal) forms reliable joints with aluminum pipe, copper pipe, and the strength of welded joint coefficient is greater than 0.85, and maximum operating temperature is not less than 150 ℃.
Embodiment 2
As shown in Figure 1, adopt silver-colored magnesium nickel composite metal as transition metal, thickness is welded with silver-colored magnesium nickel composite metal two ends respectively less than aluminium alloy annular part and the copper alloy annular element of 8mm greater than 2mm, welding process is the vacuum electron beam welding.This silver magnesium nickel composite metal composition weight percent is Ag 99.5%, Ni 0.26%, Mg 0.24%, is shaped as and wall thickness, isodiametric annular elements such as soldered aluminium alloy annular part and copper alloy annular element.
Welding rear transition metal (silver-colored magnesium nickel composite metal) forms reliable joints with aluminium alloy annular part, copper alloy annular element, and the strength of welded joint coefficient is greater than 0.9, and maximum operating temperature is not less than 150 ℃.
Embodiment 3
Adopt silver-colored magnesium nickel composite metal as transition metal, thickness is welded with silver-colored magnesium nickel composite metal two ends respectively less than aluminium sheet and the copper coin of 8mm greater than 2mm, welding process is the vacuum electron beam welding.Wherein, silver-colored magnesium nickel composite metal composition weight percent is Ag 99.45%, Ni 0.28%, Mg 0.27%, is shaped as the panel-like member with soldered aluminium sheet and copper coin uniform thickness.
Welding rear transition metal (silver-colored magnesium nickel composite metal) forms reliable joints with aluminium sheet, copper coin, and the strength of welded joint coefficient is greater than 0.9, and maximum operating temperature is not less than 150 ℃.
In addition, the present invention can also be applicable to the aluminum bronze dissimilar metal welding of other structure, as the corner connection of aluminium sheet-copper coin and joint form etc.
Claims (2)
1. method for welding aluminum-copper dissmilar metal, aluminum metal wherein to be connected is an aluminum or aluminum alloy, copper metal to be connected is copper or copper alloy, it is characterized in that: aluminum metal and copper metal are welded with the transition metal two ends respectively, described transition metal adopts silver-colored magnesium nickel composite metal, and its composition weight percent is Ag99.4%～99.5%, Ni0.26%～0.30%, Mg0.24%～0.30%.
2. method for welding aluminum-copper dissmilar metal according to claim 1 is characterized in that: described with aluminum metal and copper metal respectively with the welding of transition metal two ends, this welding process is melting welding or vacuum electron beam welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710122672XA CN100509252C (en) | 2007-07-12 | 2007-07-12 | Method for welding aluminum-copper dissmilar metal |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200710122672XA CN100509252C (en) | 2007-07-12 | 2007-07-12 | Method for welding aluminum-copper dissmilar metal |
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| CN101074130A true CN101074130A (en) | 2007-11-21 |
| CN100509252C CN100509252C (en) | 2009-07-08 |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829855A (en) * | 2010-04-15 | 2010-09-15 | 上海凯利电器厂有限公司 | Method for welding aluminum foil and copper bar of transformer winding |
| CN101653863B (en) * | 2009-09-03 | 2011-03-02 | 航天材料及工艺研究所 | Method for welding dissimilar metal with beryllium aluminum interlayer structures |
| CN101653873B (en) * | 2009-09-03 | 2011-06-22 | 航天材料及工艺研究所 | Method for welding beryllium-copper dissimilar metal |
| CN102179638A (en) * | 2011-03-29 | 2011-09-14 | 西北有色金属研究院 | Method for connecting leading tapes by performing continuous heat treatment on coating conductor |
| CN102407408A (en) * | 2011-09-23 | 2012-04-11 | 南京工业大学 | Welding joint suitable for welding dissimilar metal materials and preparation method thereof |
| CN102596488A (en) * | 2009-10-26 | 2012-07-18 | 株式会社新王材料 | Aluminum-bonding alloy, clad material having bonding alloy layer formed from the alloy, and composite material including bonded aluminum |
| CN103372710A (en) * | 2012-04-14 | 2013-10-30 | 兰州理工大学 | Cold metal transition melting-brazing welding connection method for dissimilar magnesium metal and aluminum metal |
| CN105215582A (en) * | 2015-09-17 | 2016-01-06 | 芜湖三花制冷配件有限公司 | A kind of welding procedure of polylinker heterogeneous material |
| CN105689906A (en) * | 2016-05-03 | 2016-06-22 | 重庆耐德能源装备集成有限公司 | Method for welding materials with different welding characteristics |
| CN108161263A (en) * | 2018-02-24 | 2018-06-15 | 张春红 | A kind of argon-arc welding-braze welding composite welding method |
| CN109175562A (en) * | 2018-09-13 | 2019-01-11 | 湖北汽车工业学院 | A kind of copper aluminum dissimilar metal TIG soldering processes |
| CN109590574A (en) * | 2018-11-15 | 2019-04-09 | 燕卓君 | The application method of Cu-AL pipe line high-intensity welding device |
| CN109590575A (en) * | 2018-11-15 | 2019-04-09 | 燕卓君 | Cu-AL pipe wire bonding actuator and method |
| CN110493951A (en) * | 2019-09-27 | 2019-11-22 | 德胜光电股份有限公司 | Aluminium nitride ceramics board structure of circuit |
| CN110735974A (en) * | 2018-07-20 | 2020-01-31 | 新昌县四通机电有限公司 | pipe fitting connecting structure, manufacturing method thereof, liquid storage device and refrigerating system |
| CN110958928A (en) * | 2017-07-25 | 2020-04-03 | 住友电气工业株式会社 | Method for manufacturing welded structure of metal member, and welded structure of metal member |
| CN114505576A (en) * | 2022-03-05 | 2022-05-17 | 安阳工学院 | Laser welding method for nickel-based alloy/aluminum alloy or aluminum dissimilar material |
| WO2022199061A1 (en) * | 2021-03-23 | 2022-09-29 | 浙江永旺焊材制造有限公司 | Self-fluxing brazing alloy applied to welding of aluminum-copper dissimilar materials and welding method |
| CN114505576B (en) * | 2022-03-05 | 2024-06-04 | 安阳工学院 | Nickel base alloy/aluminum alloy or aluminum dissimilar material laser welding method |
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2007
- 2007-07-12 CN CNB200710122672XA patent/CN100509252C/en active Active
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653863B (en) * | 2009-09-03 | 2011-03-02 | 航天材料及工艺研究所 | Method for welding dissimilar metal with beryllium aluminum interlayer structures |
| CN101653873B (en) * | 2009-09-03 | 2011-06-22 | 航天材料及工艺研究所 | Method for welding beryllium-copper dissimilar metal |
| CN102596488B (en) * | 2009-10-26 | 2013-09-18 | 株式会社新王材料 | Aluminum-bonding alloy, clad material having bonding alloy layer formed from the alloy, and composite material including bonded aluminum |
| CN102596488A (en) * | 2009-10-26 | 2012-07-18 | 株式会社新王材料 | Aluminum-bonding alloy, clad material having bonding alloy layer formed from the alloy, and composite material including bonded aluminum |
| CN101829855A (en) * | 2010-04-15 | 2010-09-15 | 上海凯利电器厂有限公司 | Method for welding aluminum foil and copper bar of transformer winding |
| CN102179638A (en) * | 2011-03-29 | 2011-09-14 | 西北有色金属研究院 | Method for connecting leading tapes by performing continuous heat treatment on coating conductor |
| CN102407408A (en) * | 2011-09-23 | 2012-04-11 | 南京工业大学 | Welding joint suitable for welding dissimilar metal materials and preparation method thereof |
| CN103372710A (en) * | 2012-04-14 | 2013-10-30 | 兰州理工大学 | Cold metal transition melting-brazing welding connection method for dissimilar magnesium metal and aluminum metal |
| CN105215582A (en) * | 2015-09-17 | 2016-01-06 | 芜湖三花制冷配件有限公司 | A kind of welding procedure of polylinker heterogeneous material |
| CN105689906A (en) * | 2016-05-03 | 2016-06-22 | 重庆耐德能源装备集成有限公司 | Method for welding materials with different welding characteristics |
| CN110958928B (en) * | 2017-07-25 | 2022-03-29 | 住友电气工业株式会社 | Method for manufacturing welded structure of metal member, and welded structure of metal member |
| CN110958928A (en) * | 2017-07-25 | 2020-04-03 | 住友电气工业株式会社 | Method for manufacturing welded structure of metal member, and welded structure of metal member |
| CN108161263A (en) * | 2018-02-24 | 2018-06-15 | 张春红 | A kind of argon-arc welding-braze welding composite welding method |
| CN110735974B (en) * | 2018-07-20 | 2022-06-21 | 新昌县四通机电有限公司 | Pipe fitting connecting structure, manufacturing method thereof, liquid storage device and refrigerating system |
| CN110735974A (en) * | 2018-07-20 | 2020-01-31 | 新昌县四通机电有限公司 | pipe fitting connecting structure, manufacturing method thereof, liquid storage device and refrigerating system |
| CN109175562A (en) * | 2018-09-13 | 2019-01-11 | 湖北汽车工业学院 | A kind of copper aluminum dissimilar metal TIG soldering processes |
| CN109175562B (en) * | 2018-09-13 | 2020-10-30 | 湖北汽车工业学院 | TIG brazing process for copper-aluminum dissimilar metal |
| CN109590574A (en) * | 2018-11-15 | 2019-04-09 | 燕卓君 | The application method of Cu-AL pipe line high-intensity welding device |
| CN109590574B (en) * | 2018-11-15 | 2020-11-06 | 徐州融创达电子科技有限公司 | Use method of high-strength welding device for copper-aluminum pipeline |
| CN109590575A (en) * | 2018-11-15 | 2019-04-09 | 燕卓君 | Cu-AL pipe wire bonding actuator and method |
| CN110493951A (en) * | 2019-09-27 | 2019-11-22 | 德胜光电股份有限公司 | Aluminium nitride ceramics board structure of circuit |
| WO2022199061A1 (en) * | 2021-03-23 | 2022-09-29 | 浙江永旺焊材制造有限公司 | Self-fluxing brazing alloy applied to welding of aluminum-copper dissimilar materials and welding method |
| CN114505576A (en) * | 2022-03-05 | 2022-05-17 | 安阳工学院 | Laser welding method for nickel-based alloy/aluminum alloy or aluminum dissimilar material |
| CN114505576B (en) * | 2022-03-05 | 2024-06-04 | 安阳工学院 | Nickel base alloy/aluminum alloy or aluminum dissimilar material laser welding method |
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| Publication number | Publication date |
|---|---|
| CN100509252C (en) | 2009-07-08 |
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