CN1887502A - No-cadmium brazing silver alloy containing Ga and ce - Google Patents
No-cadmium brazing silver alloy containing Ga and ce Download PDFInfo
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- CN1887502A CN1887502A CN 200610041024 CN200610041024A CN1887502A CN 1887502 A CN1887502 A CN 1887502A CN 200610041024 CN200610041024 CN 200610041024 CN 200610041024 A CN200610041024 A CN 200610041024A CN 1887502 A CN1887502 A CN 1887502A
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Abstract
The present invention belongs to the field of welding material, and is especially no-cadmium brazing silver alloy containing Ga and Ce. The no-cadmium brazing silver alloy consists of Cu 30.0-41.0 wt%, Zn 28.0-35.0 wt%, Sn 0.01-2.0 wt%, Ga 0.5-2.0 wt%, Ce 0.001-0.10 wt% and Ag for the rest. The no-cadmium brazing silver alloy has excellent mother material wettability, excellent spreading performance, capacity of forming brazing seam with excellent mechanical performance, low smelting point of main component alloy, ideal plasticity and comprehensive mechanical performance and no cadmium contamination.
Description
Technical field
The present invention relates to a kind of cadmium-free silver brazing alloy that contains gallium and rare earth cerium, belong to the brazing material of class of metal materials and field of metallurgy.
Background technology
The present silver solder BAg35CuZnCd that uses contains the cadmium (Cd) of 17.0%-19.0% in its chemical composition.Because the promulgation of European Union " WEEE " and " RoHS " two instructions, the material that " instruction " regulation contains cadmium will not allow to use in many household appliances, and in enforcement on July 1 in 2006, the relevant decree of Chinese Government also will be in enforcement on March 1 in 2007.Therefore, the substitute products that do not contain cadmium be must research and develop out and industry seek for and the very urgent realistic problem of needing solution badly become.Product also must satisfy following the requirement as an alternative: promptly have good brazing property, suitable solid-liquid phase line, be applicable to the soldering of metal materials such as red copper, brass, carbon steel, stainless steel and nickel-base alloy; Also must have with traditional and contain cadmium brazing silver alloy (silver content does not wait from 35%-50.0%, and cadmium content is also different) quite or approaching combination property.Though the existing report that contains cadmium brazing silver alloy that can substitute BAg50CuZnCd, BAg40CuZnCd (Ni) about the cadmium-free silver brazing alloy that contains gallium and rare earth cerium, but, still not having can be approaching at silver content and BAg35CuZnCd, combination property is also approaching with BAg35CuZnCd, can substitute the report of the cadmium-free silver brazing alloy of BAg35CuZnCd.This invention " cadmium-free silver brazing alloy that contains gallium and rare earth cerium " is promptly finished under this technical background.
Summary of the invention
The task of this invention provides does not a kind ofly have poisonous element cadmium and the good cadmium-free silver brazing alloy that contains gallium and rare earth cerium of solder performance fully to mother metal wetability, the spreadability fusing point that can effectively reduce the principal component alloy good, that the brazed seam mechanical property is good, that help improving wetability on red copper, brass, carbon steel, stainless steel and nickel-base alloy, plasticity and comprehensive mechanical property welding position desirable, in brazing process and after the soldering.
Task of the present invention is finished like this, a kind of cadmium-free silver brazing alloy that contains gallium and rare earth cerium, it is to be made of the following material of percentage proportioning by weight, 30.0%～41.0% copper (Cu), 28.0%～35.0% zinc (Zn), 0.01%～2.0% tin (Sn), 0.5%～2.0% gallium (Ga), 0.001%～0.10% cerium (Ce), all the other are silver (Ag).
The cadmium-free silver brazing alloy solidus temperature that contains gallium and rare earth cerium disclosed in this invention at 685 ℃～695 ℃ scopes, liquidus temperature in 760 ℃～775 ℃ scopes (having considered experimental error).Cooperate FB102 (QJ102) brazing flux, brazing material is following combination: when red copper-brass, brass-carbon steel, stainless steel-nickel-base alloy, the mechanical property of soldered fitting is respectively at σ
b=180～350MPa scope, τ=160～300MPa scope.Have that the good wetability to mother metal, spreadability, brazed seam mechanical property fusing point good, the principal component alloy are low, plasticity and comprehensive mechanical property ideal; No longer contain cadmium element in the composition, can guarantee operator's safety and avoid influence environment.
The specific embodiment
1), use commercially available silver, cathode copper, zinc ingot metal, tin slab, gallium, metallic cerium, proportioning on demand adopts that conventional intermediate frequency smelting furnace is smelted, casting, by extruding, drawing, promptly obtains needed solder wire material then; 2), according to producing needs, tin slab, gallium, metallic cerium can be smelted into alloy respectively in advance, add then in silver-copper-zinc alloy smelt, casting, by extruding, drawing, promptly obtain needed solder wire material again.
Adopt conventional intermediate frequency smelting furnace to smelt, cast, by extruding, drawing, promptly obtain needed solder wire material then; The cadmium-free silver brazing alloy that contains gallium and rare earth cerium of the present invention is object of reference with BAg35CuZnCd, cooperate the FB102/QJ102 brazing flux, during combinations of materials such as soldering red copper-brass, brass-carbon steel, stainless steel-nickel-base alloy, wetability, spreadability to mother metal are suitable with it, the suitable with it (σ of brazed seam mechanical property
b=180～350MPa scope, τ=160～300MPa scope).The cadmium-free silver brazing alloy that contains gallium and rare earth cerium of the present invention does not have the harmful element cadmium fully, has protected operator's health safety effectively, has eliminated the pollution to environment.The performance indications of solder (as solid-liquid phase line temperature, brazed seam mechanical property) and BAg35CuZnCd solder quite or approaching, solder of the present invention can be used as the substitute of BAg35CuZnCd solder and applies at the refrigeration part production industry.
Embodiment 1
Percentage proportioning by weight, its composition is: 30.0% bronze medal (Cu), 35.0% zinc (Zn), 2.0% tin (Sn), 0.5% gallium (Ga), 0.10% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 690 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=300 ± 15MPa, τ=230 ± 10MPa).
Embodiment 2
Percentage proportioning by weight, its composition is: 41.0% bronze medal (Cu), 28.0% zinc (Zn), 0.01% tin (Sn), 2.0% gallium (Ga), 0.001% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 685 ℃, liquidus temperature (considered experimental error) about 760 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=335 ± 15MPa, τ=290 ± 10MPa).
Embodiment 3
Percentage proportioning by weight, its composition is: 35.0% bronze medal (Cu), 30.0% zinc (Zn), 1.0% tin (Sn), 1.5% gallium (Ga), 0.03% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 685 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=300 ± 15MPa, τ=200 ± 10MPa).
Embodiment 4
Percentage proportioning by weight, its composition is: 35.0% bronze medal (Cu), 28.0% zinc (Zn), 2.0% tin (Sn), 2.0% gallium (Ga), 0.03% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 685 ℃, liquidus temperature (considered experimental error) about 760 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=320 ± 15MPa, τ=240 ± 10MPa).
Embodiment 5
Percentage proportioning by weight, its composition is: 30.0% bronze medal (Cu), 35.0% zinc (Zn), 2.0% tin (Sn), 2.0% gallium (Ga), 0.03% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 685 ℃, liquidus temperature (considered experimental error) about 760 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=305 ± 15MPa, τ=270 ± 10MPa).
Embodiment 6
Percentage proportioning by weight, its composition is: 37.0% bronze medal (Cu), 32.0% zinc (Zn), 0.01% tin (Sn), 1.0% gallium (Ga), 0.01% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 695 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=315 ± 15MPa, τ=270 ± 10MPa).
Embodiment 7
Percentage proportioning by weight, its composition is: 36.0% bronze medal (Cu), 31.0% zinc (Zn), 0.01% tin (Sn), 0.8% gallium (Ga), 0.002% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 695 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=295 ± 15MPa, τ=240 ± 10MPa).
Embodiment 8
Percentage proportioning by weight, its composition is: 39.0% bronze medal (Cu), 32.0% zinc (Zn), 0.01% tin (Sn), 1.0% gallium (Ga), 0.08% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 695 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=295 ± 15MPa, τ=240 ± 10MPa).
Embodiment 9
Percentage proportioning by weight, its composition is: 37.0% bronze medal (Cu), 32.0% zinc (Zn), 0.01% tin (Sn), 1.0% gallium (Ga), 0.01% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 695 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=285 ± 15MPa, τ=220 ± 10MPa).
Embodiment 10
Percentage proportioning by weight, its composition is: 40.0% bronze medal (Cu), 35.0% zinc (Zn), 0.01% tin (Sn), 0.5% gallium (Ga), 0.003% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 695 ℃, liquidus temperature (considered experimental error) about 775 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=305 ± 15MPa, τ=230 ± 10MPa).
Embodiment 11
Percentage proportioning by weight, its composition is: 30.0% bronze medal (Cu), 28.0% zinc (Zn), 2.0% tin (Sn), 2.0% gallium (Ga), 0.003% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 685 ℃, liquidus temperature (considered experimental error) about 760 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=310 ± 15MPa, τ=240 ± 10MPa).
Embodiment 12
Percentage proportioning by weight, its composition is: 38.0% bronze medal (Cu), 30.0% zinc (Zn), 0.02% tin (Sn), 1.0% gallium (Ga), 0.05% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 695 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=315 ± 15MPa, τ=260 ± 10MPa).
Embodiment 13
Percentage proportioning by weight, its composition is: 38.0% bronze medal (Cu), 30.0% zinc (Zn), 0.05% tin (Sn), 1.6% gallium (Ga), 0.08% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 690 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=330 ± 15MPa, τ=280 ± 10MPa).
Embodiment 14
Percentage proportioning by weight, its composition is: 36.0% bronze medal (Cu), 34.0% zinc (Zn), 0.1% tin (Sn), 1.2% gallium (Ga), 0.008% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 690 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=305 ± 15MPa, τ=210 ± 10MPa).
Embodiment 15
Percentage proportioning by weight, its composition is: 40.0% bronze medal (Cu), 34.0% zinc (Zn), 0.06% tin (Sn), 1.8% gallium (Ga), 0.04% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and rare earth cerium " solidus temperature that the mentioned component proportioning obtains about 690 ℃, liquidus temperature (considered experimental error) about 770 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=345 ± 15MPa, τ=240 ± 10MPa).
Embodiment 16
Percentage proportioning by weight, its composition is: 40.0% bronze medal (Cu), 34.0% zinc (Zn), 0.03% tin (Sn), 0.8% gallium (Ga), 0.06% cerium (Ce), all the other are silver (Ag).
" cadmium-free silver brazing alloy that contains gallium and the rare earth cerium " solidus temperature that obtains by above-mentioned proportioning components about 690 ℃, liquidus temperature (considered experimental error) about 775 ℃, cooperate FB102 (QJ102) brazing flux, the brazed seam intensity when the soldering mother metal is following the combination is seen data in the bracket: red copper-brass (σ
b=180 ± 15MPa, τ=160 ± 10MPa), brass-carbon steel (σ
b=260 ± 15MPa, τ=200 ± 10MPa), stainless steel-nickel-base alloy (σ
b=305 ± 15MPa, τ=210 ± 10MPa).
Another technical characterstic of the present invention is, because " cadmium-free silver brazing alloy that contains gallium and rare earth cerium " of the present invention is to soldering mother metal red copper, brass, carbon steel, stainless steel, nickel-base alloy all has good wettability respectively, therefore any cadmium-free silver brazing alloy that contain gallium and rare earth cerium of the above-mentioned specific embodiment one to the specific embodiment 16, in soldering red copper-red copper, red copper-brass, brass-carbon steel, brass-stainless steel, carbon steel-stainless steel, carbon steel-nickel-base alloy, stainless steel-nickel-base alloy, red copper-nickel-base alloy, during different combined material (mother metal) such as brass-nickel-base alloy, combined material (mother metal) to institute's soldering all has good wetability, and soldered fitting has good comprehensive mechanical properties.
In a word, the present invention and the existing relevant cadmium-free silver brazing alloy that contains gallium and cerium different technical characterstics can be illustrated from following table.Following table compares with the existing relevant similarities and differences that contains the cadmium-free silver brazing alloy technical indicator of gallium and cerium for the present invention.</entry></row></tbody></tgroup></table></tables>
As can be seen from the above table, the present invention with the existing relevant cadmium-free silver brazing alloy that contains gallium and cerium except that the content of rare earth element ce is close, main component is all inequality.Therefore, have different solidus temperatures and liquidus temperature, main application (promptly substituting the BAgCuZnCd silver solder of different cadmium contents) also inequality.Because the welding performance (the particularly mechanical property of soldered fitting such as tensile strength sigma b and shearing strength τ) of brazing material is closely related with the material that is welded, therefore, the mechanical property of the soldered fitting that obtains of above-mentioned three kinds of solder brazings is all in identical scope.
Claims (1)
1, a kind of cadmium-free silver brazing alloy that contains gallium and rare earth cerium, it is characterized in that it is to be made of the following material of percentage proportioning by weight, 30.0%～41.0% copper (Cu), 28.0%～35.0% zinc (Zn), 0.01%～2.0% tin (Sn), 0.5%～2.0% gallium (Ga), 0.001%～0.10% cerium (Ce), all the other are silver (Ag).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100410247A CN100457368C (en) | 2006-07-12 | 2006-07-12 | No-cadmium brazing silver alloy containing Ga and Ce |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100410247A CN100457368C (en) | 2006-07-12 | 2006-07-12 | No-cadmium brazing silver alloy containing Ga and Ce |
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| Publication Number | Publication Date |
|---|---|
| CN1887502A true CN1887502A (en) | 2007-01-03 |
| CN100457368C CN100457368C (en) | 2009-02-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211259A (en) * | 2011-05-20 | 2011-10-12 | 杭州普励精密器材有限公司 | Method for preparing environmentally-friendly copper-base compound surface skirting line |
| CN101716705B (en) * | 2009-11-26 | 2012-01-25 | 金华市三环焊接材料有限公司 | Multi-alloy cadmium-free phosphor-free copper-based solder |
| CN112518169A (en) * | 2020-12-04 | 2021-03-19 | 杭州华光焊接新材料股份有限公司 | Low-melting-point high-strength low-silver cadmium-free manganese-free multi-element silver solder and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531962A (en) * | 1992-09-02 | 1996-07-02 | Degussa Aktiengesellschaft | Cadmium-free silver alloy brazing solder, method of using said solder, and metal articles brazed with said solder |
| DE4323227C1 (en) * | 1993-07-12 | 1994-07-28 | Degussa | Cadmium-free silver alloy used as solder at temps. below 630 deg.C. |
| DE19940115A1 (en) * | 1999-08-24 | 2001-03-01 | Degussa | Cadmium-free brazing alloys |
| CN1435294A (en) * | 2002-12-03 | 2003-08-13 | 金华市金钟焊接材料有限公司 | Rareearth-silver solder and producing method thereof |
| CN100377832C (en) * | 2005-11-22 | 2008-04-02 | 南京航空航天大学 | Cd-free silver solder containing Ga and Ce |
-
2006
- 2006-07-12 CN CNB2006100410247A patent/CN100457368C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716705B (en) * | 2009-11-26 | 2012-01-25 | 金华市三环焊接材料有限公司 | Multi-alloy cadmium-free phosphor-free copper-based solder |
| CN102211259A (en) * | 2011-05-20 | 2011-10-12 | 杭州普励精密器材有限公司 | Method for preparing environmentally-friendly copper-base compound surface skirting line |
| CN102211259B (en) * | 2011-05-20 | 2013-04-24 | 杭州普励精密器材有限公司 | Method for preparing environmentally-friendly copper-base compound surface skirting line |
| CN112518169A (en) * | 2020-12-04 | 2021-03-19 | 杭州华光焊接新材料股份有限公司 | Low-melting-point high-strength low-silver cadmium-free manganese-free multi-element silver solder and preparation method thereof |
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| CN100457368C (en) | 2009-02-04 |
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