CN107475563A - One Albatra metal hot dip rare earth tin-based alloy and preparation method thereof - Google Patents
One Albatra metal hot dip rare earth tin-based alloy and preparation method thereof Download PDFInfo
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- CN107475563A CN107475563A CN201711000131.XA CN201711000131A CN107475563A CN 107475563 A CN107475563 A CN 107475563A CN 201711000131 A CN201711000131 A CN 201711000131A CN 107475563 A CN107475563 A CN 107475563A
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- rare earth
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- based alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/08—Tin or alloys based thereon
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Abstract
The present invention relates to an Albatra metal hot dip rare earth tin-based alloy, it is made up of the element of following mass fraction：0.1 2.5% Ni, 0.1 0.5% Ag, 0.05 0.35% RE, surplus are Sn and inevitable impurity element.The copper alloy plate strip hot dip rare earth tin-based alloy of the present invention has alloying component relatively easy, cost is low, hot-dip coating IMC thickness of thin and the long main trend of thickness are small, the advantages that cavity and whisker is not likely to produce in use, available for worked copper and copper alloy plate strip, particularly CuNiSi series alloys strip, the copper plate/strip product of the alloy progress hot-dip through the present invention are mainly used in the manufacture of all kinds of electric power connectors in field such as integrated circuit, electronic apparatus, intelligence equipment, auto industry and electronic connector etc..
Description
Technical field
The present invention relates to coat of metal Material Field, and in particular to Albatra metal hot dip rare earth tin-based alloy and its a system
Preparation Method.
Background technology
Tin plating copper alloy plate strip is widely used in the high-end fields such as Aero-Space, military project, automobile, communication and electronics, to the greatest extent
Pipe China copper plate/strip industry continues to develop, but copper alloy plate strip tin plating at present still can not meet the market demand.At present on
The research of the institutional framework of copper alloy plate strip tin coating, performance and production technology is concentrated mainly on the research of electrotinning, electrotinning
Major advantage is coated metal thickness uniformly and can arbitrarily controlled, but its complex production process, operation require strict, electroplating device
Price is high, electroplating bath components are complicated.
Hot-dip is that treated metal works are immersed in molten metal to a kind of method for obtaining the coat of metal, referred to as
Hot dip.Compared with plating, the advantages of hot-dip be weldability is good, plated layer compact firmly, production is simple, flow is simple, delivery
Phase is short, the simple price of equipment is low etc., and shortcoming is scruff is more, tin thickness is uneven, tin liquor is oxidizable, resting period is short etc..Mesh
Preceding China is concentrated mainly on the hot dipped tinning of steel surface, i.e., the matrix gold of most of hot dipped tinnings on the research of hot dipped tinning
Belong to for ferrous materials, and it is then more rare as the hot dipped tinning of matrix material using copper or copper alloy.
Pure tin should not be directly used in or immersion, main reason is that, the room temperature residence time is longer or hot operation holds
Hot tinning material surface is formed the whisker of electric conductivity, cause electric power connector or surface-mounted integrated circuit short circuit, thus to copper and
The research of the special kamash alloy of Cu alloy material hot dip is significant.
The content of the invention
It is an object of the invention to provide an Albatra metal hot dip rare earth tin-based alloy and preparation method thereof.
In order to solve the above technical problems, the technical solution adopted in the present invention is：One Albatra metal hot dip rare earth tin-based
Alloy, it is made up of the element of following mass fraction：0.1-2.5% Ni, 0.1-0.5% Ag, 0.05-0.35% RE, surplus are
Sn and inevitable impurity element.
Further, described RE is La, Ce, Pr and Nd in mass ratio 45:30:20:5 mixture.
Further, described RE purity is calculated as more than 99.9% with La, Ce, Pr and Nd mass fraction sum.
Further, described rare earth tin-based alloy is by pure Sn, intermediate alloy SnNi5（Refer to the matter of Ni in the intermediate alloy
It is 95% to measure the mass fraction that fraction is 5%, Sn）, intermediate alloy SnAg3.5（The mass fraction for referring to Ag in the intermediate alloy is
3.5%, Sn mass fraction are 96.5%）It is made with RE.
Further, described pure Sn purity is calculated as with mass fraction：Sn≥99.95%.
Further, described intermediate alloy SnNi5 purity is calculated as with mass fraction：Ni >=4.95%, surplus Sn.
Further, described intermediate alloy SnAg3.5 purity is calculated as with mass fraction：Ag >=3.49%, surplus are
Sn。
Further, described copper alloy is Cu-Ni-Si series alloy strips.
A kind of preparation method of rare earth tin-based alloy, comprises the following steps：By each member in rare earth tin-based alloy described above
The mass fraction of element weighs pure Sn, intermediate alloy SnNi5, intermediate alloy SnAg3.5 and RE, and pure Sn is put into intermediate frequency vacuum melting
Melting is carried out in stove, it is 0.005-0.010Pa to be evacuated to pressure in stove, is then charged with argon gas to 0.2-0.3MPa, is warming up to
600 DEG C, it is incubated to pure Sn and is completely melt；Intermediate alloy SnNi5 is added, is incubated to intermediate alloy SnNi5 and is completely melt；In addition
Between alloy SnAg3.5, be incubated to intermediate alloy SnAg3.5 and be completely melt；RE is added, is incubated to RE and is completely melt；It is cooled to 400
DEG C casting ingot-forming, that is, rare earth tin-based alloy is made.
Further, at least one of intermediate alloy SnNi5 and intermediate alloy SnAg3.5 are made with the following method：Press
Dispensing is weighed according to intermediate alloy each element mass fraction, water cooling copper sleeve vacuum non-consumable smelting furnace is put into, is evacuated to stove internal pressure
Strong is 0.005-0.010Pa, is then charged with argon gas to 0.2-0.3MPa, electric arc melting to dispensing and is completely melt, closing electric arc makes
Melt cooling is to complete solidification, and melt turn-over after solidification, that is, is made accordingly repeated melting, cooling, turn-over step 2-4 time
Intermediate alloy.
Each alloys producing and beneficial effect in the present invention：
1st, Ni main function is to form Ni3Sn、Ni3Sn2、Ni3Sn4Deng intermetallic compound, suppress interface C u6Sn5Metal
Between compound growth；The wettability of Sn alloys is improved, shortens wetting time, is effectively improved the spreading property of Sn alloys；Pin
Shape Cu6Sn5Intermetallic compound is changed into spherical or tabular；Improve the mobility of Sn alloys, suppress the molten of interface C u copper
Solution；The Sn life quantity of slag is reduced, improves antioxygenic property；
2nd, Ag effect, the addition of Trace Ag can improve the wettability of tin alloy, refine Sn primary crystal tissues, improve Sn alloys
Plasticity and creep resistance；Interface forms compound layer between composition metal（Ag3Sn+Cu6Sn5）, there is chemical combination between obstruction interface metal
The effect of nitride layer growth；
3rd, mischmetal LaCePrNd main function：With deoxidization desulfuration, the effect of alloy melt is purified；Improve alloy flow
Property, reduce alloy molten state viscosity；Prevent alloy surface from further aoxidizing, there is the formation for hindering alloy surface tin content；
4th, the performance indications of rare earth tin-based alloy of the invention are：Standard electrode potential 0.3178-0.3384V, fusing point 188.2-
217.8 DEG C, tensile strength 50.6-90.4MPa, elongation percentage 36.1-61.6%；The copper alloy plate strip hot dip rare earth tin of the present invention
Based alloy has that alloying component is relatively easy, and cost is low, hot-dip coating IMC thickness of thin and the long main trend of thickness are small, is not easy in use
The advantages that producing cavity and whisker, available for worked copper and copper alloy plate strip, particularly Cu-Ni-Si series alloys strip, wetting
Property and tack it is good, be not likely to produce dross phenomenon, through the present invention alloy carry out hot-dip copper plate/strip product be mainly used in collecting
Into the manufacture of circuit, intelligently electronic apparatus, all kinds of electric power connectors in field such as equipment, auto industry and electronic connector etc..
Embodiment
With reference to specific embodiment, the present invention will be further described in detail.
Embodiment 1
A kind of Cu-Ni-Si series alloys strip hot dip rare earth tin-based alloy, is made up of the element of following mass fraction：0.5%
Ni, 0.15% Ag, 0.05% RE, surplus is Sn and inevitable impurity element；Described RE is La, Ce, Pr and Nd
In mass ratio 45:30:20:5 mixture；Described RE purity is calculated as 99.9% with La, Ce, Pr and Nd mass fraction sum
More than；
The preparation method of the rare earth tin-based alloy comprises the following steps：
（1）The preparation of intermediate alloy：Intermediate alloy SnNi5 and intermediate alloy SnAg3.5 are made with the following method：In
Between alloy each element mass fraction weigh dispensing（By taking intermediate alloy SnNi5 as an example, according to 95:5 mass ratio weighs pure Sn and pure
Ni）, water cooling copper sleeve vacuum non-consumable smelting furnace is put into, it is 0.007Pa to be evacuated to pressure in stove, is then charged with argon gas to 0.2-
0.3MPa, electric arc melting to dispensing be completely melt, closing electric arc makes melt cooling to complete solidification, by melt turn-over after solidification,
Repeated melting, cooling, turn-over step 3 time, that is, corresponding intermediate alloy is made；Described intermediate alloy SnNi5 purity is with matter
Amount fraction is calculated as：Ni >=4.95%, surplus Sn；Described intermediate alloy SnAg3.5 purity is calculated as with mass fraction：Ag≥
3.49%, surplus Sn；
（2）The mass fraction of each element as described in claim 1 weighs pure Sn（Purity is calculated as with mass fraction：Sn≥
99.95%）, intermediate alloy SnNi5, intermediate alloy SnAg3.5 and RE, pure Sn is put into intermediate frequency vacuum melting furnace and carries out melting,
Furnace lining material is magnesia, and it is 0.008Pa to be evacuated to pressure in stove, is then charged with argon gas to 0.2-0.3MPa, is warming up to 600
DEG C, it is incubated to pure Sn and is completely melt（About 30-60min）；Add intermediate alloy SnNi5,600 DEG C of insulations to intermediate alloy SnNi5
It is completely melt（About 30-60min）；Intermediate alloy SnAg3.5 is added, 600 DEG C of insulations to intermediate alloy SnAg3.5 are completely melt
（About 30-60min）；RE is added, 600 DEG C of insulations to RE are completely melt（About 30-60min）；400 DEG C are cooled to, is made from punching block
For die casting ingot, that is, rare earth tin-based alloy is made；
The performance indications of the present embodiment rare earth tin alloy are：Standard electrode potential 0.3384V, 189.8 DEG C of fusing point, tensile strength
50.6MPa, elongation percentage 61.6%.
Embodiment 2
A kind of Cu-Ni-Si series alloys strip hot dip rare earth tin-based alloy, is made up of the element of following mass fraction：1.0%
Ni, 0.2% Ag, 0.25% RE, surplus is Sn and inevitable impurity element；Described RE is that La, Ce, Pr and Nd are pressed
Mass ratio 45:30:20:5 mixture；Described RE purity with La, Ce, Pr and Nd mass fraction sum be calculated as 99.9% with
On；
Preparation method is with embodiment 1, the performance indications of embodiment rare earth tin alloy：Standard electrode potential 0.3291V, fusing point
198.9 DEG C, tensile strength 77.8MPa, elongation percentage 45.2%.
Embodiment 3
A kind of Cu-Ni-Si series alloys strip hot dip rare earth tin-based alloy, is made up of the element of following mass fraction：1.5%
Ni, 0.3% Ag, 0.5% RE, surplus is Sn and inevitable impurity element；Described RE is that La, Ce, Pr and Nd are pressed
Mass ratio 45:30:20:5 mixture；Described RE purity with La, Ce, Pr and Nd mass fraction sum be calculated as 99.9% with
On；
Preparation method is with embodiment 1, the performance indications of embodiment rare earth tin alloy：Standard electrode potential 0.3178V, fusing point
208.9 DEG C, tensile strength 90.4MPa, elongation percentage 36.1%.
Embodiment 4
A kind of Cu-Ni-Si series alloys strip hot dip rare earth tin-based alloy, is made up of the element of following mass fraction：0.1%
Ni, 0.5% Ag, 0.1% RE, surplus is Sn and inevitable impurity element；Described RE is that La, Ce, Pr and Nd are pressed
Mass ratio 45:30:20:5 mixture；Described RE purity with La, Ce, Pr and Nd mass fraction sum be calculated as 99.9% with
On；
Preparation method is with embodiment 1, the performance indications of embodiment rare earth tin alloy：Standard electrode potential 0.3341V, fusing point
188.2 DEG C, tensile strength 55.3MPa, elongation percentage 47.2%.
Embodiment 5
A kind of Cu-Ni-Si series alloys strip hot dip rare earth tin-based alloy, is made up of the element of following mass fraction：2.5%
Ni, 0.1% Ag, 0.35% RE, surplus is Sn and inevitable impurity element；Described RE is that La, Ce, Pr and Nd are pressed
Mass ratio 45:30:20:5 mixture；Described RE purity with La, Ce, Pr and Nd mass fraction sum be calculated as 99.9% with
On；
Preparation method is with embodiment 1, the performance indications of embodiment rare earth tin alloy：Standard electrode potential 0.31898V, fusing point
217.8 DEG C, tensile strength 85.3MPa, elongation percentage 38.9%.
Embodiment 6
A kind of Cu-Ni-Si series alloys strip hot dip rare earth tin-based alloy, is made up of the element of following mass fraction：2.0%
Ni, 0.4% Ag, 0.15% RE, surplus is Sn and inevitable impurity element；Described RE is that La, Ce, Pr and Nd are pressed
Mass ratio 45:30:20:5 mixture；Described RE purity with La, Ce, Pr and Nd mass fraction sum be calculated as 99.9% with
On；
Preparation method is with embodiment 1, the performance indications of embodiment rare earth tin alloy：Collimator electrode current potential 0.3228V, fusing point
211.39 DEG C, tensile strength 72.6MPa, elongation percentage 46.5%.
Above example is only some embodiments of the present invention, in the case where not departing from basic idea of the present invention,
Any replacement and improvement all should include protection scope of the present invention.
Claims (10)
- A 1. Albatra metal hot dip rare earth tin-based alloy, it is characterised in that be made up of the element of following mass fraction：0.1- 2.5% Ni, 0.1-0.5% Ag, 0.05-0.35% RE, surplus are Sn and inevitable impurity element.
- 2. Albatra metal hot dip rare earth tin-based alloy according to claim 1, it is characterised in that：Described RE is La, Ce, Pr and Nd in mass ratio 45:30:20:5 mixture.
- 3. Albatra metal hot dip rare earth tin-based alloy according to claim 2, it is characterised in that：Described RE's is pure Degree is calculated as more than 99.9% with La, Ce, Pr and Nd mass fraction sum.
- 4. Albatra metal hot dip rare earth tin-based alloy according to claim 1, it is characterised in that：Described rare earth tin Based alloy is made up of pure Sn, intermediate alloy SnNi5, intermediate alloy SnAg3.5 and RE.
- 5. Albatra metal hot dip rare earth tin-based alloy according to claim 4, it is characterised in that：Described pure Sn's Purity is calculated as with mass fraction：Sn≥99.95%.
- 6. Albatra metal hot dip rare earth tin-based alloy according to claim 4, it is characterised in that：Conjunction among described Golden SnNi5 purity is calculated as with mass fraction：Ni >=4.95%, surplus Sn.
- 7. Albatra metal hot dip rare earth tin-based alloy according to claim 4, it is characterised in that：Conjunction among described Golden SnAg3.5 purity is calculated as with mass fraction：Ag >=3.49%, surplus Sn.
- A kind of 8. copper alloy plate strip hot dip rare earth tin-based alloy according to claim any one of 1-7, it is characterised in that： Described copper alloy is Cu-Ni-Si series alloy strips.
- 9. a kind of preparation method of rare earth tin-based alloy according to claim 4, it is characterised in that comprise the following steps： The mass fraction of each element as described in claim 1 weighs pure Sn, intermediate alloy SnNi5, intermediate alloy SnAg3.5 and RE, Pure Sn is put into intermediate frequency vacuum melting furnace and carries out melting, it is 0.005-0.010Pa to be evacuated to pressure in stove, is then charged with argon Gas is warming up to 600 DEG C, is incubated to pure Sn and is completely melt to 0.2-0.3MPa；Intermediate alloy SnNi5 is added, is incubated to centre and closes Golden SnNi5 is completely melt；Intermediate alloy SnAg3.5 is added, is incubated to intermediate alloy SnAg3.5 and is completely melt；Add RE, insulation It is completely melt to RE；400 DEG C of casting ingot-formings are cooled to, that is, rare earth tin-based alloy is made.
- A kind of 10. preparation method of rare earth tin-based alloy according to claim 9, it is characterised in that intermediate alloy SnNi5 It is made with the following method with least one of intermediate alloy SnAg3.5：Weigh and match somebody with somebody according to intermediate alloy each element mass fraction Material, is put into water cooling copper sleeve vacuum non-consumable smelting furnace, it is 0.005-0.010Pa to be evacuated to pressure in stove, is then charged with argon gas To 0.2-0.3MPa, electric arc melting to dispensing is completely melt, closing electric arc makes melt cooling to complete solidification, by melt after solidification Turn-over, repeated melting, cooling, turn-over step 2-4 times, that is, corresponding intermediate alloy is made.
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| CN201711000131.XA CN107475563B (en) | 2017-10-24 | 2017-10-24 | One Albatra metal hot dip rare earth tin-based alloy and preparation method thereof |
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| CN201711000131.XA CN107475563B (en) | 2017-10-24 | 2017-10-24 | One Albatra metal hot dip rare earth tin-based alloy and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112126879A (en) * | 2020-09-24 | 2020-12-25 | 鹰潭市众鑫成铜业有限公司 | Tinning method of copper wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262159A (en) * | 1999-01-28 | 2000-08-09 | 株式会社村田制作所 | Leadless solder and welding product |
| CN102337422A (en) * | 2010-07-21 | 2012-02-01 | 中国科学院金属研究所 | Low-ablation lead-free tin plating alloy under high temperature |
| CN103205601A (en) * | 2013-04-11 | 2013-07-17 | 广东普赛特电子科技股份有限公司 | Damping brazing alloy and preparation method thereof |
-
2017
- 2017-10-24 CN CN201711000131.XA patent/CN107475563B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262159A (en) * | 1999-01-28 | 2000-08-09 | 株式会社村田制作所 | Leadless solder and welding product |
| CN102337422A (en) * | 2010-07-21 | 2012-02-01 | 中国科学院金属研究所 | Low-ablation lead-free tin plating alloy under high temperature |
| CN103205601A (en) * | 2013-04-11 | 2013-07-17 | 广东普赛特电子科技股份有限公司 | Damping brazing alloy and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112126879A (en) * | 2020-09-24 | 2020-12-25 | 鹰潭市众鑫成铜业有限公司 | Tinning method of copper wire |
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