CN105081608A - Self-fluxing silver solder containing Eu, Li, Al and nano-Mo - Google Patents
Self-fluxing silver solder containing Eu, Li, Al and nano-Mo Download PDFInfo
- Publication number
- CN105081608A CN105081608A CN201510587632.7A CN201510587632A CN105081608A CN 105081608 A CN105081608 A CN 105081608A CN 201510587632 A CN201510587632 A CN 201510587632A CN 105081608 A CN105081608 A CN 105081608A
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- China
- Prior art keywords
- solder
- self
- nanometer
- fluxing
- nano
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- Granted
Links
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 50
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 18
- 229910052693 Europium Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 10
- 230000004907 flux Effects 0.000 abstract description 8
- 238000005476 soldering Methods 0.000 abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 150000002910 rare earth metals Chemical class 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000005219 brazing Methods 0.000 description 14
- 229910001369 Brass Inorganic materials 0.000 description 10
- 239000010951 brass Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000035926 haptotaxis Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 229910017539 Cu-Li Inorganic materials 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3006—Ag as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses self-fluxing silver solder containing Eu, Li, Al and nano-Mo, and belongs to the field of metal connecting materials. The interconnecting material comprises 45.0%-62.0% of Ag, 9%-13% of Zn, 1%-5% of Li, 0.001%-0.02% of Eu, 0.001%-0.02% of Al, 0.01%-0.3% of nano-Mo and the balance Cu. By utilizing the coupling of rare earth Eu, Al and nano-Mo for modifying the performance of the Ag-Cu-Zn-Li solder, the self-fluxing performance and wettability of the solder are significantly improved, and the mechanical performance of soldered joints is significantly improved. The novel solder is good in self-fluxing performance, excellent in wettability, high in mechanical performance and especially suitable for performing tiny contact welding on pipes, tools, motors, electric appliances and the like without using soldering flux.
Description
Technical field
The present invention relates to a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo, belong to metal connecting material field.When this connecting material is mainly applicable to the small contact weld such as pipe fitting, instrument, motor, electrical equipment, does not need to use brazing flux, and have " self-fluxing performance ".Compare the high silver solder of traditional argentiferous 65%, there is good wetability and mechanical property.
Background technology
In electric manufacturing, the height of argentiferous 65% silver AgCuZn solder is the main connecting material of motor coil welding, but along with the increase gradually of silver-colored consumption, high silver adds cost burden undoubtedly.In brazed seam, find that obvious slag exists in addition, obviously reduce Joint intensity and toughness.When needing the welding of bearing repeatedly the electrical contacts such as the workpiece of oscillating load and Ag/Cu, AgW for some, the residue after soldering is difficult to cleaning, brings potential safety hazard to undoubtedly total part.
In order to realize the existence without residue after soldering, the important performance becoming brazing material from haptotaxis of solder.
Summary of the invention
The object of this invention is to provide a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo, by adding alloying element, under the prerequisite not using brazing flux, make solder have the effect of Automatic clearance residue in brazing process, this solder also has good wetability and mechanical property simultaneously.
The present invention utilizes rare earth Eu, Al and nanometer Mo three coupling, carries out modification to the performance of Ag-Cu-Zn-Li solder, can significantly improve solder from haptotaxis, the wetability of solder and the mechanical property of soldered fitting.Mainly to solve following key issue: optimize rare earth element Eu, Al, nanometer Mo, Ag, Cu, Zn and Li content, obtain high performance connecting material.
The present invention realizes with following technical scheme: a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo, its composition and mass percent are: Ag content is 45.0% ~ 62.0%, Zn content is 9% ~ 13%, Li content is 1%-5%, Eu content is 0.001% ~ 0.02%, Al content is 0.001 ~ 0.02%, nanometer Mo content is 0.01% ~ 0.3%, and all the other are Cu.
The present invention can adopt the customary preparation methods producing composite material to obtain.
The method that the present invention preferably adopts is: first prepare Cu-Li, Cu-Eu and Ag-Al intermediate alloy, then commercially available silver, cathode copper, Cu-Li, Cu-Eu and Ag-Al intermediate alloy, proportioning on demand, adopts conventional intermediate frequency smelting furnace to smelt, finally add nanometer Mo.Silver solder is cast, extrudes, drawing, obtain the self-fluxing silver solder silk material containing Eu, Al and nanometer Mo.
Mechanism of the present invention is: for one containing Eu, Li, the self-fluxing silver solder of Al and nanometer Mo, Eu, Al and nanometer Mo is high active material, element reaction preferentially and in AgCuZn solder, three's coupling containment Li and matrix constituent element react, lithium electrode is oxidizable and generate the oxide of lithium, low melting point compound can be formed with many oxides, lithia can be had an effect with the moisture in air, form lithium hydroxide (fusing point 450 DEG C), and the lithium hydroxide of molten condition almost can dissolve all oxides, ensure silver solder from haptotaxis, rare earth Eu is " vitamin " of metal material in addition, wetability and the soldered fitting mechanical property of silver solder can be significantly improved.Al element has obvious non-oxidizability to solder, ensures molten solder mobility.Nanometer Mo particle can be attracted to crystal boundary annex in solder joint inside, crystal boundary is had to the effect of pinning, can reinforcing joint, improves the mechanical property of joint.Consider the performance change of silver solder, at utmost play the effect of Ag, Cu, Zn, Li, Eu, Al and nanometer Mo, so control Ag content is 45.0% ~ 62.0%, Zn content is 9% ~ 13%, Li content is 1%-5%, Eu content be 0.001% ~ 0.02%, Al content is 0.001 ~ 0.02%, nanometer Mo content is 0.01% ~ 0.3%, and all the other are Cu.
Compared with the prior art, beneficial effect of the present invention is: the self-fluxing silver solder containing Eu, Li, Al and nanometer Mo utilizes rare earth Eu, Al and nanometer Mo three coupling, modification is carried out to the performance of Ag-Cu-Zn-Li solder, significantly improve solder from haptotaxis, the wetability of solder and the mechanical property of soldered fitting.Novel solder has preferably from haptotaxis, excellent wetability and higher mechanical property.
Detailed description of the invention
Technical scheme of the present invention and effect is further illustrated below in conjunction with embodiment.
The material that following 5 embodiments use obtains by following preparation method: first prepare Cu-Li, Cu-Eu and Ag-Al intermediate alloy, then commercially available silver, cathode copper, Cu-Li, Cu-Eu and Ag-Al intermediate alloy, proportioning on demand, adopts conventional intermediate frequency smelting furnace to smelt, finally add nanometer Mo.Silver solder is cast, extrudes, drawing, obtain the self-fluxing silver solder silk material containing Eu, Al and nanometer Mo.
Embodiment 1
Solder composition: the Ag of 45.0%, the Zn of 13.0%, the Li of 1.0%, the Eu of 0.001%, the Al of 0.001%, the nanometer Mo of 0.01%, all the other are Cu.
" a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo " that mentioned component proportioning obtains uses gas brazing mode, does not use brazing flux, red copper-brass Joint intensity: σ
b=210MPa, τ=200MPa, coordinates B102 scaling powder soldering red copper-brass soldered fitting mechanical property suitable with BAg65CuZn solder.
Embodiment 2
Solder composition: the Ag of 50.0%, the Zn of 10.0%, the Li of 2.0%, the Eu of 0.002%, the Al of 0.005%, the nanometer Mo of 0.1%, all the other are Cu.
" a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo " that mentioned component proportioning obtains uses gas brazing mode, does not use brazing flux, red copper-brass Joint intensity: σ
b=218MPa, τ=210MPa, coordinates B102 scaling powder soldering red copper-brass soldered fitting mechanical property suitable with BAg65CuZn solder.
Embodiment 3
Solder composition: the Ag of 55.0%, the Zn of 9.0%, the Li of 3.0%, the Eu of 0.003%, the Al of 0.01%, the nanometer Mo of 0.2%, all the other are Cu.
" a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo " that mentioned component proportioning obtains uses gas brazing mode, does not use brazing flux, red copper-brass Joint intensity: σ
b=225MPa, τ=220MPa, coordinates B102 scaling powder soldering red copper-brass soldered fitting mechanical property suitable with BAg65CuZn solder.
Embodiment 4
Solder composition: the Ag of 60.0%, the Zn of 12.0%, the Li of 4.0%, the Eu of 0.003%, the Al of 0.02%, the nanometer Mo of 0.4%, all the other are Cu.
" a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo " that mentioned component proportioning obtains uses gas brazing mode, does not use brazing flux, red copper-brass Joint intensity: σ
b=236MPa, τ=224MPa, coordinates B102 scaling powder soldering red copper-brass soldered fitting mechanical property higher than BAg65CuZn solder.
Embodiment 5
Solder composition: the Ag of 62.0%, the Zn of 11.0%, the Li of 5.0%, the Eu of 0.003%, the Al of 0.02%, the nanometer Mo of 0.5%, all the other are Cu.
" a kind of self-fluxing silver solder containing Eu, Li, Al and nanometer Mo " that mentioned component proportioning obtains uses gas brazing mode, does not use brazing flux, red copper-brass Joint intensity: σ
b=243MPa, τ=225MPa, coordinates B102 scaling powder soldering red copper-brass soldered fitting mechanical property higher than BAg65CuZn solder.
Claims (1)
1. one kind contains the self-fluxing silver solder of Eu, Li, Al and nanometer Mo, it is characterized in that: its composition and mass percent are: Ag content is 45.0% ~ 62.0%, Zn content is 9% ~ 13%, Li content is 1%-5%, Eu content is 0.001% ~ 0.02%, Al content is 0.001 ~ 0.02%, nanometer Mo content is 0.01% ~ 0.3%, and all the other are Cu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587632.7A CN105081608B (en) | 2015-09-15 | 2015-09-15 | Self-fluxing silver solder containing Eu, Li, Al and nano-Mo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587632.7A CN105081608B (en) | 2015-09-15 | 2015-09-15 | Self-fluxing silver solder containing Eu, Li, Al and nano-Mo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105081608A true CN105081608A (en) | 2015-11-25 |
| CN105081608B CN105081608B (en) | 2017-05-03 |
Family
ID=54563416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510587632.7A Expired - Fee Related CN105081608B (en) | 2015-09-15 | 2015-09-15 | Self-fluxing silver solder containing Eu, Li, Al and nano-Mo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105081608B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404957A (en) * | 2001-09-18 | 2003-03-26 | 北京航空材料研究院 | Cadmium-free silver-base solder |
| CN101780613A (en) * | 2010-03-25 | 2010-07-21 | 杭州华光焊料有限公司 | Special rare earth alloy silver-brazing filler metal |
| CN102240870A (en) * | 2011-05-20 | 2011-11-16 | 杭州华光焊接新材料股份有限公司 | Multielement rare-earth silver solder |
| CN102513727A (en) * | 2011-12-28 | 2012-06-27 | 南京航空航天大学 | Self-fluxing silver solder containing neodymium, zirconium and gallium |
| US20140030139A1 (en) * | 2012-07-30 | 2014-01-30 | Alcoma Metal Co., Ltd. | Cu-P-Ag-Zn BRAZING ALLOY |
-
2015
- 2015-09-15 CN CN201510587632.7A patent/CN105081608B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404957A (en) * | 2001-09-18 | 2003-03-26 | 北京航空材料研究院 | Cadmium-free silver-base solder |
| CN101780613A (en) * | 2010-03-25 | 2010-07-21 | 杭州华光焊料有限公司 | Special rare earth alloy silver-brazing filler metal |
| CN102240870A (en) * | 2011-05-20 | 2011-11-16 | 杭州华光焊接新材料股份有限公司 | Multielement rare-earth silver solder |
| CN102513727A (en) * | 2011-12-28 | 2012-06-27 | 南京航空航天大学 | Self-fluxing silver solder containing neodymium, zirconium and gallium |
| US20140030139A1 (en) * | 2012-07-30 | 2014-01-30 | Alcoma Metal Co., Ltd. | Cu-P-Ag-Zn BRAZING ALLOY |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105081608B (en) | 2017-05-03 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Yucai Road Jiawang District 221011 Jiangsu city of Xuzhou province No. 2 Applicant after: Jiangsu Normal University Address before: 221116 Shanghai Road, Copper Mt. New District, Jiangsu, No. 101, No. Applicant before: Jiangsu Normal University |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 |