CN105081607B - Self-fluxing silver solder containing Yb, Ge and nano Nb - Google Patents
Self-fluxing silver solder containing Yb, Ge and nano Nb Download PDFInfo
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- CN105081607B CN105081607B CN201510587274.XA CN201510587274A CN105081607B CN 105081607 B CN105081607 B CN 105081607B CN 201510587274 A CN201510587274 A CN 201510587274A CN 105081607 B CN105081607 B CN 105081607B
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- self
- silver solder
- fluxing
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- nanometer
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Classifications
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- 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
Abstract
The invention discloses self-fluxing silver solder containing Yb, Ge and nano Nb and belongs to the field of metal connection materials. The self-fluxing silver solder, namely an interconnection material, comprises 45.0% to 62.0% of Ag, 9% to 13% of Zn, 1% to 5% of Li, 0.001% to 0.03% of Yb, 0.001% to 0.02% of Ge, 0.01% to 0.5% of nano Nb and the balance Cu. According to the self-fluxing silver solder containing Yb, Ge and nano Nb, the coupling function of rare earth Yb, Ge and nano Nb is used for modifying the performance of the Ag-Cu-Zn-Li solder, and accordingly the self-fluxing property and the wettability of the solder and the mechanical performance of soldered joints are remarkably improved. The self-fluxing silver solder is particularly applicable to soldering of tiny contacts of pipe fittings, tools, motors, electric appliances and the like, and soldering flux is not needed.
Description
Technical field
The present invention relates to a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb, belongs to metal connecting material field.The company
Connect material and be primarily adapted for use in the small contact welding such as pipe fitting, instrument, motor, electrical equipment.Without using brazing flux, and have " from haptotaxis
Can ".The high silver solder of traditional argentiferous 65% is compared, with good wettability and mechanical property.
Background technology
In electric manufacturing, the brazed seam of motor coil is mainly welded using the high silver AgCuZn solders of argentiferous 65%
Connect, but the gradually increase of the consumption with silver solder, and height is silver-colored undoubtedly to increased cost burden.Find substantially in brazed seam in addition
Slag exist, hence it is evident that reduce Joint intensity and toughness.For some need to bear the workpiece and Ag/ of multiple oscillating load
During the welding of the electrical contacts such as Cu, AgW, the residue after soldering is difficult to clean up, and undoubtedly brings potential safety hazard to total part.
In order to realize the presence without residue after soldering, an important performance for becoming brazing material from haptotaxis of solder.
The content of the invention
The present invention provides a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb, by adding alloying element, is not using
On the premise of brazing flux, solder is made with the effect of cleaning residue automatically in brazing process, while the solder has good profit
Moist and mechanical property.Following key issue is solved mainly：Optimization rare earth element y b, Ge, nanometer Nb, Ag, Cu, Zn and Li contain
Amount, obtains high performance connecting material.
The present invention is realized with following technical scheme：A kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb, its composition
And mass percent is：It is that 9%～13%, Li contents are that 1%-5%, Yb contain that Ag contents are 45.0%～62.0%, Zn contents
It is 0.001～0.02% to measure as 0.001%～0.03%, Ge contents, and nanometer Nb content is 0.01%～0.5%, and remaining is Cu.
The present invention is obtained using the customary preparation methods of production composite material.
Present invention preferably employs method be：Cu-Li, Cu-Yb and Ag-Ge intermediate alloy is prepared first, then will be commercially available
Silver, cathode copper, Cu-Li, Cu-Yb and Ag-Ge intermediate alloy, proportioning on demand, smelted using conventional intermediate frequency smelting furnace,
It is eventually adding a nanometer Nb.Silver solder is carried out casting, is extruded, drawing, obtain the self-fluxing silver solder silk containing Yb, Ge and nanometer Nb
Material.
The present invention mechanism be：For a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb, Yb, Ge and nanometer Nb are equal
For high active material, preferentially with AgCuZn solders in element reaction, three's coupling containment Li reacted with matrix constituent element, lithium
Easily aoxidize and generate lithium oxide, can with many oxides formed low melting point complex, lithium oxide can with air in
Moisture is had an effect, and forms Lithium hydrate (450 DEG C of fusing point), and the Lithium hydrate of molten condition can almost dissolve all of oxidation
Thing, it is ensured that silver solder from haptotaxis, Rare Earth Y b is " vitamin " of metal material in addition, can significantly improve the moistening of silver solder
Property and soldered fitting mechanical property.Ge elements have obvious non-oxidizability to solder, it is ensured that molten solder mobility.Nanometer Nb
Granule can be attracted to crystal boundary adnexa inside solder joint, have the effect of pinning to crystal boundary, can improve joint with reinforcing joint
Mechanical property.In view of the performance change of silver solder, the work of Ag, Cu, Zn, Li, Yb, Ge and nanometer Nb is at utmost played
With so it is that 9%～13%, Li contents are 1%-5% to control Ag contents for 45.0%～62.0%, Zn contents, Yb contents are
0.001%～0.03%, Ge content is 0.001～0.02%, and nanometer Nb content is 0.01%～0.5%, and remaining is Cu.
Compared with the prior art, the beneficial effects of the present invention is：The present invention utilizes Rare Earth Y b, Ge and nanometer Nb three's coupling
Cooperation is used, and the performance of Ag-Cu-Zn-Li solders is modified, significantly improve solder from haptotaxis, the wettability of solder and
The mechanical property of soldered fitting；With preferably from haptotaxis, excellent wettability and higher mechanical property.
Specific embodiment
Technical scheme and effect are further illustrated below by embodiment.
Following 5 embodiment preparation methoies are：Cu-Li, Cu-Yb and Ag-Ge intermediate alloy is prepared first, then will be commercially available
Silver, cathode copper, Cu-Li, Cu-Yb and Ag-Ge intermediate alloy, proportioning on demand, smelted using conventional intermediate frequency smelting furnace,
It is eventually adding a nanometer Nb.Silver solder is carried out casting, is extruded, drawing, obtain the self-fluxing silver solder silk containing Yb, Ge and nanometer Nb
Material.
Embodiment 1
Composition proportion：45.0% Ag, 9.0% Zn, 1.0% Li, 0.001% Yb, 0.001% Ge,
0.01% nanometer Nb, remaining is Cu.
" a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb " that mentioned component proportioning is obtained is using gas brazing side
Formula, does not use brazing flux, red copper-brass Joint intensity：σb=200MPa, τ=190MPa, coordinates B102 with BAg65CuZn solders
Scaling powder soldering red copper-brass soldered fitting mechanical property is suitable.
Embodiment 2
Composition proportion：50.0% Ag, 10.0% Zn, 2.0% Li, 0.002% Yb, 0.005% Ge,
0.1% nanometer Nb, remaining is Cu.
" a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb " that mentioned component proportioning is obtained is using gas brazing side
Formula, does not use brazing flux, red copper-brass Joint intensity：σb=212MPa, τ=203MPa, coordinates B102 with BAg65CuZn solders
Scaling powder soldering red copper-brass soldered fitting mechanical property is suitable.
Embodiment 3
Composition proportion：55.0% Ag, 11.0% Zn, 3.0% Li, 0.003% Yb, 0.01% Ge, 0.2%
Nanometer Nb, remaining is Cu.
" a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb " that mentioned component proportioning is obtained is using gas brazing side
Formula, does not use brazing flux, red copper-brass Joint intensity：σb=220MPa, τ=210MPa, coordinates B102 with BAg65CuZn solders
Scaling powder soldering red copper-brass soldered fitting mechanical property is suitable.
Embodiment 4
Composition proportion：60.0% Ag, 12.0% Zn, 4.0% Li, 0.003% Yb, 0.02% Ge, 0.4%
Nanometer Nb, remaining is Cu.
" a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb " that mentioned component proportioning is obtained is using gas brazing side
Formula, does not use brazing flux, red copper-brass Joint intensity：σb=236MPa, τ=231MPa, coordinates higher than BAg65CuZn solders
B102 scaling powder soldering red copper-brass soldered fitting mechanical properties.
Embodiment 5
Composition proportion：62.0% Ag, 13.0% Zn, 5.0% Li, 0.003% Yb, 0.02% Ge, 0.5%
Nanometer Nb, remaining is Cu.
" a kind of self-fluxing silver solder containing Yb, Ge and nanometer Nb " that mentioned component proportioning is obtained is using gas brazing side
Formula, does not use brazing flux, red copper-brass Joint intensity：σb=240MPa, τ=234MPa, coordinates higher than BAg65CuZn solders
B102 scaling powder soldering red copper-brass soldered fitting mechanical properties.
Claims (1)
1. a kind of self-fluxing silver solder containing Yb, Nb and Ge, it is characterised in that：Its composition and mass percent are：Ag contents are
45.0%～62.0%, Zn content is that 9%～13%, Li contents are 1%-5%, and Yb contents contain for 0.001%～0.03%, Ge
Measure as 0.001～0.02%, nanometer Nb content is 0.01%～0.5%, and remaining is Cu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587274.XA CN105081607B (en) | 2015-09-15 | 2015-09-15 | Self-fluxing silver solder containing Yb, Ge and nano Nb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587274.XA CN105081607B (en) | 2015-09-15 | 2015-09-15 | Self-fluxing silver solder containing Yb, Ge and nano Nb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105081607A CN105081607A (en) | 2015-11-25 |
| CN105081607B true CN105081607B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510587274.XA Active CN105081607B (en) | 2015-09-15 | 2015-09-15 | Self-fluxing silver solder containing Yb, Ge and nano Nb |
Country Status (1)
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2294014A1 (en) * | 1974-12-13 | 1976-07-09 | Cerca | HOT ASSEMBLY PROCESS |
| JPS62282798A (en) * | 1986-05-30 | 1987-12-08 | Ngk Insulators Ltd | Alloy for brazing |
| CN101780613B (en) * | 2010-03-25 | 2011-11-09 | 杭州华光焊料有限公司 | Special rare earth alloy silver-brazing filler metal |
| CN102554504B (en) * | 2011-12-28 | 2013-11-06 | 常熟市华银焊料有限公司 | Self-soldering silver solder containing praseodymium, zirconium and gallium |
| CN102513727B (en) * | 2011-12-28 | 2013-07-24 | 南京航空航天大学 | Self-fluxing silver solder containing neodymium, zirconium and gallium |
| CN103056543B (en) * | 2013-01-18 | 2015-03-25 | 江苏师范大学 | Lead-free nanometer solder containing Yb, A1 and B |
| CN103056544B (en) * | 2013-01-18 | 2015-02-18 | 江苏师范大学 | Lead-free solder with high creep-resistant property |
| EP2832488A1 (en) * | 2013-07-31 | 2015-02-04 | Umicore AG & Co. KG | Brazing alloys |
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2015
- 2015-09-15 CN CN201510587274.XA patent/CN105081607B/en active Active
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| CN105081607A (en) | 2015-11-25 |
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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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