CN102581514B - Silver solder containing phosphorus, stannum and rare earth - Google Patents
Silver solder containing phosphorus, stannum and rare earth Download PDFInfo
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- CN102581514B CN102581514B CN201210070094.0A CN201210070094A CN102581514B CN 102581514 B CN102581514 B CN 102581514B CN 201210070094 A CN201210070094 A CN 201210070094A CN 102581514 B CN102581514 B CN 102581514B
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Abstract
The invention relates to welding solder, in particular to a silver solder containing phosphorous, stannum and rare earth. The silver solder is characterized in that the silver solder comprises chemical components including, by mass percentage, 46.0-60.0% of copper (Cu), 1.0-3.5% of phosphorus (P), 0.001-0.5% of stannum (Sn), 0.001-0.10% of rare earth (RE), and the balance silver (Ag). BAg72Cu28 is utilized as reference object, the temperature of solidus ranges from 650 DEG C to 670 DEG C, the temperature of liquidus ranges from 780 DEG C to 800 DEG C, resistivity ranges from 0.0426mm2/m to 0.0623 omega mm2/m, (experimental error is taken into consideration), and by combining with FB102/QJ102 soldering flux, soldering red copper, brass, nickel-base alloy and the like, wettability and spreadability of the silver solder to a base material are equal and mechanical performance of soldering seams of the silver solder to the base material is equal as well (sigma=190-260MPa, tau=190-230MPa). Silver content in the silver solder is reduced greatly, silver of precious metal is saved, performance indexes (such as the temperature of the solidus and the liquidus, and the mechanical performance of the soldering seams) of the silver solder are equal or approximate to the FB102/QJ102 soldering flux, and the silver solder can substitute for the FB102/QJ102 soldering flux and can be popularized and applied in the production industry of refrigerating parts.
Description
Technical field
The present invention relates to welding filler metal class, specifically there is good brazing property, suitable solid-liquid phase line, an alternative BAg72Cu28 solder, be applicable to the metal material solderings such as red copper, brass, nickel-base alloy and be particularly suitable for phosphorous, the tin of magnetron welding and the silver solder of rare earth.
Background technology
At present, BAg72Cu28 binary eutectic alloy solder generally selected by solder for solderings such as magnetrons, its fusing point is suitable for, conduction is good, mechanical strength, plasticity is high, in various medium, corrosion stability is also better, its all technical can meet the requirement of soldering processes substantially, but maximum shortcoming is because of its silver content high (reaching about 72%), along with international finance situation constantly changes, silver price records high repeatly, only nearly one-year age, silver price soars to 10000. yuan/kilogram from 4000 yuan/kilogram, amount of increase is up to 250%, the production costs such as magnetron are caused significantly to improve, the market competitive pressure increases.So, research and development can meet the requirement of the products such as magnetron special soldering processes, silver content relatively low, with the special solder impelling manufacturing cost to reduce, be also extremely urgent work.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, phosphorous, the tin of the alternative BAg72Cu28 silver solder that a kind of safety non-toxic, brazing property are excellent, cost is low and the silver solder of rare earth are provided.
The present invention is achieved through the following technical solutions:
The silver solder of a kind of phosphorous, tin and rare earth, it is characterized in that: chemical composition is the copper (Cu) of 46.0% ~ 60.0% by mass percent, the phosphorus (P) of 1.0% ~ 3.5%, the tin (Sn) of 0.001% ~ 0.5%, the rare earth (RE) of 0.001% ~ 0.10%, all the other are silver (Ag).
The present invention uses commercially available silver, cathode copper, tin slab, phosphor copper, rare earth, proportioning on demand, adopt conventional intermediate frequency smelting furnace to smelt, cast or adopt horizontal casting mode to obtain casting rod (ingot casting), then casting rod (ingot casting) is passed through extruding, drawing, namely obtain required solder wire material.
The present invention mainly solves following two key technical problems: 1) develop silver content low, the silver solder of alternative BAg72Cu28, by optimizing the chemical composition of " silver solder of phosphorous, tin and rare earth ", obtain, brazed seam mechanical property (σ excellent to mother metal wetability, spreadability
b, τ) good silver solder; 2) in silver solder, add appropriate tin (Sn), phosphorus (P) to reduce the fusing point of principal component alloy (Ag-Cu alloy), add appropriate tin (Sn) simultaneously and can improve the wetability of cadmium-free silver brazing alloy on red copper, brass and nickel-base alloy; Add rare earth element (RE) with the crystal grain of the neoteric silver solder of refinement, improve plasticity and the comprehensive mechanical property of silver solder.
The silver solder of phosphorous, tin of the present invention and rare earth take BAg72Cu28 as object of reference, solidus temperature at 650 DEG C ~ 670 DEG C scopes, liquidus temperature in 780 DEG C ~ 800 DEG C scopes, resistivity at 0.0426 ~ 0.0623 Ω .mm
2/ m, (considering experimental error), coordinates FB102/QJ102 brazing flux, during the combinations of materials such as soldering red copper, brass, nickel-base alloy, suitable with it to the wetability of mother metal, spreadability, brazed seam mechanical property suitable (σ with it
b=190 ~ 260MPa scope, τ=190 ~ 230MPa scope).The silver solder of phosphorous, tin of the present invention and rare earth greatly reduces silver content, save precious metal element silver, and the performance indications of solder (as solid-liquid liquidus temperature, brazed seam mechanical property) and BAg72Cu28 solder are quite or close, the substitute that can be used as BAg72Cu28 solder is applied at refrigeration part production industry.
Detailed description of the invention
According to the quality recipe ratio of " silver solder of phosphorous, tin and rare earth " of the present invention, describe specific embodiments of the invention.
Embodiment 1:
By mass percent proportioning, its composition is: 56.0% bronze medal (Cu), 3.0% phosphorus (P), 0.5% tin (Sn), 0.10% rare earth (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 650 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0623 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 72.7% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=190MPa, τ=190MPa), brass-brass (σ
b=210MPa, τ=200MPa).
Embodiment 2:
By mass percent proportioning, its composition is: 58.5% bronze medal (Cu), 1.5% phosphorus (P), 0.01% tin (Sn), 0.001% rare earth (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 660 DEG C, liquidus temperature at about 780 DEG C, resistivity is 0.0560 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 73.7% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=205MPa, τ=200MPa), brass-brass (σ
b=230MPa, τ=210MPa).
Embodiment 3:
By mass percent proportioning, its composition is: 52.3% bronze medal (Cu), 2.2% phosphorus (P), 0.01% tin (Sn), 0.01% rare earth (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 650 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0570 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 73.4% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=220MPa, τ=200MPa), brass-brass (σ
b=240MPa, τ=210MPa).
Embodiment 4:
By mass percent proportioning, its composition is: 53.2% bronze medal (Cu), 1.8% phosphorus (P), 0.05% tin (Sn), 0.03% rare earth (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 650 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0523 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 74.3% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=230MPa, τ=200MPa), brass-brass (σ
b=240MPa, τ=200MPa).
Embodiment 5:
By mass percent proportioning, its composition is: 48.5% bronze medal (Cu), 1.5% phosphorus (P), 0.5% tin (Sn), 0.01% rare earth metal (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 650 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0450 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 75.3% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=250MPa, τ=210MPa), brass-brass (σ
b=260MPa, τ=230MPa).
Embodiment 6:
By mass percent proportioning, its composition is: 48.2% bronze medal (Cu), 1.8% phosphorus (P), 0.2% tin (Sn), 0.005% rare earth metal (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 650 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0426 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 74.6% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=250MPa, τ=210MPa), brass-brass (σ
b=260MPa, τ=220MPa).
Embodiment 7:
By mass percent proportioning, its composition is: 48.7% bronze medal (Cu), 1.3% phosphorus (P), 0.03% tin (Sn), 0.05% rare earth metal (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 660 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0472 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 75.1% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=250MPa, τ=210MPa), brass-brass (σ
b=260MPa, τ=220MPa).
Embodiment 8:
By mass percent proportioning, its composition is: 53.5% bronze medal (Cu), 1.5% phosphorus (P), 0.3% tin (Sn), 0.02% rare earth metal (RE), and all the other are silver (Ag).
" silver solder of phosphorous, tin and rare earth " solidus temperature that mentioned component proportioning obtains about 660 DEG C, liquidus temperature at about 790 DEG C, resistivity is 0.0443 Ω .mm
2/ m, after soldering, the delivery efficiency of magnetron is 74.8% (considering experimental error), coordinates FB102 (QJ102) brazing flux, and Joint intensity when soldering mother metal is following combination is shown in data in bracket: red copper-brass (σ
b=230MPa, τ=200MPa), brass-brass (σ
b=240MPa, τ=200MPa).
Embodiment of the present invention 1-8 has good wettability respectively to soldering mother metal red copper, nickel-base alloy, namely when combined material (mother metal) that soldering red copper-red copper, brass-brass, red copper-nickel-base alloy, brass-nickel-base alloy etc. are different, to the combined material (mother metal) of institute's soldering, all there is good wetability, and soldered fitting has good comprehensive mechanical property.
The present invention is particularly suitable for the welding of magnetron.
Claims (1)
1. a silver solder for phosphorous, tin and rare earth, is characterized in that, by mass percent proportioning be: the copper of 46.0% ~ 60.0%, the phosphorus of 1.0% ~ 3.5%, the tin of 0.01% ~ 0.5%, the rare earth metal of 0.001% ~ 0.1%, and all the other are silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070094.0A CN102581514B (en) | 2012-03-16 | 2012-03-16 | Silver solder containing phosphorus, stannum and rare earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070094.0A CN102581514B (en) | 2012-03-16 | 2012-03-16 | Silver solder containing phosphorus, stannum and rare earth |
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| Publication Number | Publication Date |
|---|---|
| CN102581514A CN102581514A (en) | 2012-07-18 |
| CN102581514B true CN102581514B (en) | 2015-06-03 |
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| CN201210070094.0A Active CN102581514B (en) | 2012-03-16 | 2012-03-16 | Silver solder containing phosphorus, stannum and rare earth |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358048B (en) * | 2013-07-25 | 2016-08-17 | 杭州华光焊接新材料股份有限公司 | A kind of silver-bearing copper phosphorus system vacuum brazing material |
| CN111922552A (en) * | 2019-12-25 | 2020-11-13 | 金华市金钟焊接材料有限公司 | High-entropy silver solder alloy |
| CN110952017B (en) * | 2019-12-27 | 2020-10-09 | 华北水利水电大学 | High-entropy ultra-silver solder alloy and preparation method thereof |
| CN113843546A (en) * | 2021-09-23 | 2021-12-28 | 金华市金钟焊接材料有限公司 | CuPSnAg Ni-Re ultra-silver solder, preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109459A (en) * | 1985-12-28 | 1987-02-11 | 沈阳有色金属压延厂 | Copper-phosphorus-Xi-Cu-P-Sn-rare earth welding |
| CN1439480A (en) * | 2003-01-15 | 2003-09-03 | 深圳市亿铖达工业有限公司 | Oxidation-inhibited lead-free welding materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286606C (en) * | 2004-08-06 | 2006-11-29 | 宁波恒力汽配轴承有限公司 | Process for welding flange and bearing ring of linear flange bearing |
| KR20070025963A (en) * | 2006-06-15 | 2007-03-08 | 최진수 | Copper phosphorus blazing alloy containing cerium element |
| CN100463763C (en) * | 2006-12-12 | 2009-02-25 | 常熟市华银焊料有限公司 | Cu-P-Ag solder containing Ga, In and Ce |
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2012
- 2012-03-16 CN CN201210070094.0A patent/CN102581514B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109459A (en) * | 1985-12-28 | 1987-02-11 | 沈阳有色金属压延厂 | Copper-phosphorus-Xi-Cu-P-Sn-rare earth welding |
| CN1439480A (en) * | 2003-01-15 | 2003-09-03 | 深圳市亿铖达工业有限公司 | Oxidation-inhibited lead-free welding materials |
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| CN102581514A (en) | 2012-07-18 |
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Denomination of invention: Silver solder containing phosphorus, tin and rare earth Effective date of registration: 20220615 Granted publication date: 20150603 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch Pledgor: JINHUA JINZHONG WELDING MATERIALS CO.,LTD. Registration number: Y2022330000951 |