CN105047247A - Tin composition for wire tinning and preparation method and application thereof - Google Patents
Tin composition for wire tinning and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides a tin composition for wire tinning and a preparation method and an application thereof. The tin composition comprises the following ingredients, by weight, 0.5-1.5% of metal Bi, 0.1-1.0% of metal In, 0.1-0.5% of metal Ag, 0.3-1.5% of metal Cu, 0.5-1.5% of nano-carbon sol, 0.5-1.5% of a silicone coupling agent, 1-5% of an additive and the rest of metal Sn. By controlling ratio of metal Ag and metal Cu and their use amounts, properties of the tin composition are enhanced, and properties of a cable with the application of the tin composition are further raised. By adding nano-carbon sol and the silicone coupling agent, marginal adaptation between a coating and a core is improved. The coating and the core are more tightly combined. Thus, mechanical properties of a wire are enhanced.
Description
Technical field
The invention belongs to electric wire field, relate to the zinc-plated tin composition and method of making the same of a kind of electric wire and purposes.
Background technology
Electric wire product is widely used in national economy every field, is called " blood vessel " and " nerve " of national economy.Electric wire manufacturing industry is supporting industry maximum in national economy. its product must meet technical performance and the cost performance requirement in each use field, meets the requirement that living standards of the people improve constantly; Its development has the necessity being ahead of application development.
Now civilian, business and industrial electric wire and cable conductor, particularly civilian wiring, what mostly use is all copper conductor.In order to reduce the cost of electric wire, improving other electric properties of fine copper copper core electric wire, needing to improve traditional copper core electric wire or replace.In prior art, useful copper alloy substitutes fine copper, and this copper alloy electric wire intensity is high, but electric conductivity declines to some extent, and the conductivity of this electric wire need further raising.
Patent CN103352138A discloses a kind of preparation method of copper alloy electric wire, the alloying element mass percent of described copper alloy is: Mn0.2 ~ 0.6%, Al0.4 ~ 1.5%, Ce0.02 ~ 0.1%, Ni0.02 ~ 0.15%, surplus is Cu and inevitable impurity; By copper alloy casting ingot hot extrusion, be drawn into the wire rod of 1 ~ 8mm; Under the protection of nitrogen atmosphere, wire rod is put into heat-treatment furnace, heat treatment temperature is 1100 DEG C ~ 1250 DEG C, and the time is 1.5 ~ 2.5 hours; Wire rod sky is cooled to 40 ~ 55 DEG C, wraps up silver-plated carbon fiber shielding layer, extrude one deck protective jacket.Although the electric conductivity that the method prepares electric wire increases, mechanical performance and decay resistance unsatisfactory.
In prior art, have and take in the outside outsourcing one deck alloy of copper conductor or coating to improve the technical scheme of the performance of wire.Tin coating is a kind of good weldability and has the coating of certain anti-corrosion capability, is widely used in electronic wire, printed substrate.Tin coating can adopt the method preparation of plating, immersion plating and chemical plating.Immersion tin is easy and simple to handle, and cost is low, but thickness of coating is limited, generally only has 0.5 μm, and plating solution is easily poisoned, and cannot meet industrial requirements.Chemical plating stannum layer thickness is even, and solution dispersibility is good, and production efficiency is high, easily-controlled operation, coating surface is bright and clean smooth, compact crystallization, porosity is low, and adhesion is better than immersion tin and electrotinning, is the electroless plating technology of a kind of desirable Small electronic component and electronic wire.But because the hydrogen-evolution overpotential of tin is high, catalytic activity is low, if adopt separately the reducing agents such as formaldehyde, inferior sodium phosphate, boron hydride, all can not realize the continuously self-catalyzed deposition of tin, cannot obtain thicker coating.
Patent CN104332211A discloses a kind of zinc-plated phosphor-bronze wire, comprise core and coating, described core material is phosphor copper, described coating is 100% pure stannum layer, and it is outer that described pure stannum layer is evenly coated on described core by hot dipping method, and the straight warp of described core is 0.5mm ~ 1.2mm, and the tolerance of described diameter is ± 0.01, described thickness of coating is 6 μm ~ 9 μm, and the composition of described phosphor copper and mass percent are: phosphorus 12%-18%, copper 80%-89%, and all the other are impurity.Mainly have employed the pure stannum layer of 100% in that patent as coating, its tensile strength and conductance are not all very desirable, and the adaptation of tin coating and fibre core is also bad, easily peels off.
Summary of the invention
Undesirable for the conductance of the wire existed in above-mentioned prior art, mechanical performance and acid-resistant corrosion, the problem such as the adaptation of tin coating and fibre core is bad, the invention provides the zinc-plated tin composition and method of making the same of a kind of electric wire and purposes.The present invention improves the performance of described tin composition by the adding proportion and consumption controlling metal A g and Ni metal, improves the performance of the electric wire of this tin composition of application further; And by adding carbon Nano sol and silane coupling agent, improve the conjugation grade of coating and core, coating and core are connect tightr, thus improve the mechanical performance of wire.
For reaching this object, the present invention by the following technical solutions:
First aspect, the invention provides the zinc-plated tin composition of a kind of electric wire, it is characterized in that, described tin composition comprises following component by the mass percent shared by each component:
In described tin composition, the mass ratio of Ni metal and metal A g is 3:1.
Wherein, the mass percent of metal Bi can be 0.5%, 0.7%, 0.9%, 1.0%, 1.3% or 1.5% etc.; The mass percent of metal In can be 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% or 1.0% etc.; The mass percent of metal A g can be 0.1%, 0.2%, 0.3%, 0.4% or 0.5% etc.; The mass percent of Ni metal can be 0.3%, 0.7%, 0.9%, 1.0%, 1.3% or 1.5% etc.; The mass percent of carbon Nano sol can be 0.5%, 0.7%, 0.9%, 1.0%, 1.3% or 1.5% etc.; 0.5%, 0.7%, 0.9%, 1.0%, 1.3% or 1.5% etc. of silane coupling agent; The mass percent of additive can be 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5% etc.
Be preferably, described tin composition comprises following component by the mass percent shared by each component:
More preferably, described tin composition comprises following component by the mass percent shared by each component:
The present invention improves the performance of described tin composition by the adding proportion and consumption controlling metal A g and Ni metal.In prior art, concerning the composition of Sn, when the addition of Ag is less than 3.5wt%, in zinc-plated process, has excessive Sn formed with β-Sn, form trickle shrinkage cavity crack on Sn surface when making to solidify, affect properties of product.Meanwhile, when the content of Ag is less than 1.0wt%, the deteriorated weldability of material can be made.And the present invention is by repeatedly studying, by ratio and the content of control Ag and Cu, the two works in coordination with the performance regulating material.
Meanwhile, the present invention improves the conjugation grade of tin composition and core by interpolation carbon Nano sol and silane coupling agent.
In the present invention, described silane coupling agent is 3-metacryloxy propyl trimethoxy silicane, 2-(3, 4-epoxyhexyl) combination of any one or at least two kinds in ethyl trimethoxy silane or 3-glycidoxypropyltrime,hoxysilane, described combination typical case but limiting examples have: 3-metacryloxy propyl trimethoxy silicane and 2-(3, 4-epoxyhexyl) combination of ethyl trimethoxy silane, 2-(3, 4-epoxyhexyl) combination of ethyl trimethoxy silane and 3-glycidoxypropyltrime,hoxysilane, 3-metacryloxy propyl trimethoxy silicane, 2-(3, 4-epoxyhexyl) combination etc. of ethyl trimethoxy silane and 3-glycidoxypropyltrime,hoxysilane.
In the present invention, described additive comprises following component by mass percentage:
Reducing agent 30 ~ 40%
Non-ionic surface active agent 30 ~ 40%
Antioxidant 20 ~ 40%
In additive, the mass percent sum of each material is 100%;
Wherein, reducing agent mass percent can be 30%, 32%, 34%, 36%, 38% or 40% etc.; The mass percent of non-ionic surface active agent can be 30%, 32%, 34%, 36%, 38% or 40% etc.; The mass percent of antioxidant can be 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38% or 40% etc.
Be preferably, described additive comprises following component by mass percentage:
Reducing agent 35%
Non-ionic surface active agent 35%
Antioxidant 30%
In additive, the mass percent sum of each material is 100%.
In the present invention, described reducing agent is the combination of any one or at least two kinds in sodium hypophosphite, potassium hypophosphite, hypophosphorous acid amine or organo-borane, described combination typical case but limiting examples have: the combination of sodium hypophosphite and potassium hypophosphite, the combination of potassium hypophosphite and hypophosphorous acid amine, the combination of hypophosphorous acid amine and organo-borane, the combination etc. of sodium hypophosphite, potassium hypophosphite, hypophosphorous acid amine and organo-borane.
Preferably, described non-ionic surface active agent is polyoxyethylene alkylaryl ether, polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems, polyoxyethylene alkyl amine, the combination of any one or at least two kinds in polyoxyethylene sorbitol ester or polymine, described combination typical case but limiting examples have: the combination of polyoxyethylene alkylaryl ether and polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems, the combination of polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems and polyoxyethylene alkyl amine, the combination of polyoxyethylene sorbitol ester and polymine, polyoxyethylene alkylaryl ether, the combination of polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems and polyoxyethylene alkyl amine, polyoxyethylene alkylaryl ether, polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems, the combination of polyoxyethylene alkyl amine and polyoxyethylene sorbitol ester, polyoxyethylene alkylaryl ether, polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems, polyoxyethylene alkyl amine, the combination etc. of polyoxyethylene sorbitol ester and polymine.
Preferably, described antioxidant is the combination of any one or at least two kinds in ascorbic acid, catechol, resorcinol, hydroquinones or trimesic acid, the typical but non-limiting example of described combination has: the combination of ascorbic acid and catechol, the combination of catechol and resorcinol, the combination of resorcinol, hydroquinones and trimesic acid, the combination of ascorbic acid, catechol, resorcinol and hydroquinones, the combination etc. of ascorbic acid, catechol, resorcinol, hydroquinones and trimesic acid.
In the present invention, the consumption of reducing agent, non-ionic surface active agent and antioxidant is not arbitrarily use, and it is through repeatedly the scheme that can make material property optimum that a large amount of experiments obtains.
Second aspect, the invention provides the preparation method of above-mentioned tin composition, said method comprising the steps of:
Under protective atmosphere; the metal Sn of formula ratio is melted and is warming up to 400 ~ 450 DEG C; then the metal Bi of formula ratio, metal In, carbon Nano sol and silane coupling agent is dropped into; 300 ~ 350 DEG C are cooled to after magnetic agitation 15 ~ 30min; add the additive of formula ratio again; after magnetic agitation 15 ~ 30min; metal A g and the Ni metal of formula ratio is added after being warming up to 1100 ~ 1200 DEG C; standing 30 ~ 40min after magnetic agitation 10 ~ 20min, then carries out ingot casting and the air cooling demoulding obtains required product.
Wherein, metal Sn melted and be warming up to 400 ~ 450 DEG C and can be 400 DEG C, 405 DEG C, 410 DEG C, 415 DEG C, 420 DEG C, 425 DEG C, 430 DEG C, 435 DEG C, 440 DEG C, 445 DEG C or 450 DEG C etc.;
Be cooled to 300 ~ 350 DEG C after magnetic agitation 15 ~ 30min, wherein the magnetic agitation time can be 15min, 20min, 25min or 30min etc., and cooling temperature can be 300 DEG C, 310 DEG C, 320 DEG C, 330 DEG C, 340 DEG C or 350 DEG C etc.;
Add the additive of formula ratio, after magnetic agitation 15 ~ 30min, be warming up to 1100 ~ 1200 DEG C, the magnetic agitation time can be 15min, 20min, 25min or 30min etc. herein, and warming temperature can be 1100 DEG C, 1110 DEG C, 1120 DEG C, 1130 DEG C, 1140 DEG C, 1150 DEG C, 1160 DEG C, 1170 DEG C, 1180 DEG C, 1190 DEG C or 1200 DEG C etc.;
Add metal A g and the Ni metal of formula ratio, 30 ~ 40min is left standstill after magnetic agitation 10 ~ 20min, the magnetic agitation time is 10min, 12min, 14min, 16min, 18min or 20min herein, and time of repose can be 30min, 32min, 34min, 36min, 38min or 40min etc.
In the present invention; described protective atmosphere is the combination of any one or at least two kinds in nitrogen, helium, neon or argon gas; described combination typical case but limiting examples have: the combination of nitrogen and helium; the combination of neon and argon gas; the combination of nitrogen, helium and neon, the combination etc. of nitrogen, helium, neon and argon gas.
In the present invention, the speed of magnetic agitation is 1500 ~ 2000r/min, such as 1500r/min, 1600r/min, 1700r/min, 1800r/min, 1900r/min or 2000r/min etc.
The third aspect, the invention provides a kind of electric wire applied above-mentioned tin composition and prepare, described electric wire comprises heart yearn and surrounding layer, and wherein surrounding layer is obtained by above-mentioned tin composition, and its concrete preparation method is as follows:
First the tin composition fusing will prepared, is then placed in the melt of tin, the energising long enough time by heart yearn, until heart yearn surface forms certain tin layers and surrounding layer, be cooled to normal temperature after then being taken out by heart yearn.
Compared with prior art, the present invention has following beneficial effect:
The present invention improves the performance of described tin composition by the adding proportion and consumption controlling metal A g and Ni metal, improves the performance of the electric wire of this tin composition of application further; And by adding carbon Nano sol and silane coupling agent, improve the adaptation of coating and core, coating and core are connect tightr, thus improve the mechanical performance of electric wire.Adopt its tensile strength of electric wire that in the present invention, tin composition prepares to reach more than 200MPa, conductivity is 110 ~ 130%IACS, and thermal conductivity is 580 ~ 630wm
-1k
-1.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand, described embodiment only understands the present invention for helping, and should not be considered as concrete restriction of the present invention.
Embodiment 1:
The preparation of tin composition:
In a nitrogen atmosphere, the metal Sn of 92.3kg is melted and is warming up to 425 DEG C, then the metal Bi of 1kg is dropped into, 0.5kg metal In, the 3-metacryloxy propyl trimethoxy silicane of 1kg carbon Nano sol and 1kg, to be cooled to 325 DEG C after 1700r/min magnetic agitation 22min, add the 3kg additive of formula ratio again (wherein, the consumption of sodium hypophosphite is 35wt%, the consumption of polyoxyethylene alkylaryl ether is 35wt%, the consumption of ascorbic acid is 30wt%), after 1700r/min magnetic agitation 25min, 0.3kg metal A g and 0.9kg Ni metal is added after being warming up to 1150 DEG C, to leave standstill 35min after 1700r/min magnetic agitation 15min, then ingot casting is carried out and the air cooling demoulding obtains required product.
Then, by the tin composition fusing prepared, heart yearn is placed in the melt of tin, the energising long enough time, until heart yearn surface forms certain tin layers and surrounding layer, is cooled to normal temperature after then being taken out by heart yearn, obtains tinned wire.
Carry out performance test to tinned wire, record tensile strength and reach more than 230MPa, conductivity is 129%IACS, and thermal conductivity is 627wm
-1k
-1.
Embodiment 2:
The preparation of tin composition:
In a nitrogen atmosphere, the metal Sn of 90.1kg is melted and is warming up to 400 DEG C, then the metal Bi of 1.2kg is dropped into, 0.7kg metal In, the 2-(3 of 1.2kg carbon Nano sol and 1.2kg, 4-epoxyhexyl) combination of ethyl trimethoxy silane, to be cooled to 350 DEG C after 1500r/min magnetic agitation 30min, add the 4kg additive of formula ratio again (wherein, the consumption of hypophosphorous acid amine is 40wt%, the consumption of polyoxyethylene alkyl amine is 40wt%, the consumption of catechol is 20wt%), after 1500r/min magnetic agitation 30min, 0.4kg metal A g and 1.2kg Ni metal is added after being warming up to 1200 DEG C, to leave standstill 40min after 1500r/min magnetic agitation 20min, then ingot casting is carried out and the air cooling demoulding obtains required product.
Then, by the tin composition fusing prepared, heart yearn is placed in the melt of tin, the energising long enough time, until heart yearn surface forms certain tin layers and surrounding layer, is cooled to normal temperature after then being taken out by heart yearn, obtains tinned wire.
Carry out performance test to tinned wire, record tensile strength and reach more than 220MPa, conductivity is 121%IACS, and thermal conductivity is 621wm
-1k
-1.
Embodiment 3:
The preparation of tin composition:
In a nitrogen atmosphere, the metal Sn of 94.8kg is melted and is warming up to 450 DEG C, then the metal Bi of 0.7kg is dropped into, 0.3kg metal In, the 2-(3 of 0.7kg carbon Nano sol and 0.7kg, 4-epoxyhexyl) ethyl trimethoxy silane, to be cooled to 300 DEG C after 2000r/min magnetic agitation 15min, add the 2kg additive of formula ratio again (wherein, the consumption of organo-borane is 30wt%, the consumption of polyoxyethylene sorbitol ester is 30wt%, the consumption of hydroquinones is 40wt%), after 2000r/min magnetic agitation 15min, 0.2kg metal A g and 0.6kg Ni metal is added after being warming up to 1100 DEG C, to leave standstill 30min after 2000r/min magnetic agitation 10min, then ingot casting is carried out and the air cooling demoulding obtains required product.
Then, by the tin composition fusing prepared, heart yearn is placed in the melt of tin, the energising long enough time, until heart yearn surface forms certain tin layers and surrounding layer, is cooled to normal temperature after then being taken out by heart yearn, obtains tinned wire.
Carry out performance test to tinned wire, record tensile strength and reach more than 211MPa, conductivity is 118%IACS, and thermal conductivity is 589wm
-1k
-1.
Embodiment 4:
Except each amounts of components is component: metal Bi is 1.5kg, metal In be 1.0kg, metal A g is 0.5kg, Ni metal is 1.5kg, carbon Nano sol is 1.5kg, silane coupling agent is 1.5kg, additive be 5kg and metal Sn is except 87.5kg, other steps are all in the same manner as in Example 1, performance test is carried out to obtained tinned wire, record tensile strength and reach more than 208MPa, conductivity is 116%IACS, and thermal conductivity is 588wm
-1k
-1.
Embodiment 5:
Except each amounts of components is: metal Bi is 0.5kg, metal In be 0.1kg, metal A g is 0.1kg, Ni metal is 0.3kg, carbon Nano sol is 0.5kg, silane coupling agent is 0.5kg, additive be 1kg and metal Sn is except 97kg, other steps are all in the same manner as in Example 1, performance test is carried out to obtained tinned wire, record tensile strength and reach more than 209MPa, conductivity is 119%IACS, and thermal conductivity is 585wm
-1k
-1.
Comparative example 1:
Except not adding except metal A g, other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 179MPa, conductivity is 99%IACS, and thermal conductivity is 501wm-
1k
-1.
Comparative example 2:
Except not adding except Ni metal, other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 179MPa, conductivity is 99%IACS, and thermal conductivity is 501wm-
1k
-1.
Comparative example 3:
Mass percent except metal A g is except 4%, and other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 180MPa, conductivity is 101%IACS, and thermal conductivity is 512wm-
1k
-1.
Comparative example 4:
Mass percent except Ni metal is except 4%, and other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 179MPa, conductivity is 103%IACS, and thermal conductivity is 509wm-
1k
-1.
Comparative example 5:
Except the mass ratio of Ni metal and metal A g is except 5:1, other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 184MPa, conductivity is 94%IACS, and thermal conductivity is 531wm-
1k
-1.
Result in conjunction with comparative example 1-5 and embodiment 1-5 can be found out, both Ag and Cu combine and follow certain proportioning can have appreciable impact to the combination property of product.
Comparative example 6:
Except not adding carbon Nano sol, other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 181MPa, conductivity is 102%IACS, and thermal conductivity is 529wm-
1k
-1.
Comparative example 7:
Except not adding except silane coupling agent, other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 177MPa, conductivity is 99%IACS, and thermal conductivity is 521wm-
1k
-1.
Comparative example 8:
Except not adding carbon Nano sol and silane coupling agent, other steps are all in the same manner as in Example 1, and carry out performance test to obtained tinned wire, record tensile strength and reach more than 170MPa, conductivity is 91%IACS, and thermal conductivity is 501wm-
1k
-1.
The result of integrated embodiment 1-5 and comparative example 7-8 can be found out, adds carbon Nano sol and silane coupling agent, improves the adaptation of coating and core, coating and core is connect tightr, thus improves the mechanical performance of electric wire.
In sum, the present invention improves the performance of described tin composition by the adding proportion and consumption controlling metal A g and Ni metal, improves the performance of the electric wire of this tin composition of application further; And by adding carbon Nano sol and silane coupling agent, improve the adaptation of coating and core, coating and core are connect tightr, thus improve the mechanical performance of wire.Adopt its tensile strength of electric wire that in the present invention, tin composition prepares to reach more than 200MPa, conductivity is 110 ~ 130%IACS, and thermal conductivity is 580 ~ 630wm
-1k
-1.
Applicant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (10)
1. the zinc-plated tin composition of electric wire, is characterized in that, described tin composition comprises following component by the mass percent shared by each component:
In described tin composition, the mass ratio of Ni metal and metal A g is 3:1.
2. tin composition according to claim 1, is characterized in that, described composition comprises following component by the mass percent shared by each component:
。
3. tin composition according to claim 1 and 2, is characterized in that, described composition comprises following component by the mass percent shared by each component:
4. the tin composition according to any one of claim 1-3, it is characterized in that, described silane coupling agent is the combination of any one or at least two kinds in 3-metacryloxy propyl trimethoxy silicane, 2-(3,4-epoxyhexyl) ethyl trimethoxy silane or 3-glycidoxypropyltrime,hoxysilane.
5. the tin composition according to any one of claim 1-4, is characterized in that, described additive comprises following component by mass percentage:
Reducing agent 30 ~ 40%
Non-ionic surface active agent 30 ~ 40%
Antioxidant 20 ~ 40%
In additive, the mass percent sum of each material is 100%;
Preferably, described additive comprises following component by mass percentage:
Reducing agent 35%
Non-ionic surface active agent 35%
Antioxidant 30%
In additive, the mass percent sum of each material is 100%.
6. tin composition according to claim 5, is characterized in that, described reducing agent is the combination of any one or at least two kinds in sodium hypophosphite, potassium hypophosphite, hypophosphorous acid amine or organo-borane;
Preferably, described non-ionic surface active agent is the combination of any one or at least two kinds in polyoxyethylene alkylaryl ether, polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems, polyoxyethylene alkyl amine, polyoxyethylene sorbitol ester or polymine;
Preferably, described antioxidant is the combination of any one or at least two kinds in ascorbic acid, catechol, resorcinol, hydroquinones or trimesic acid.
7. the preparation method of the tin composition according to any one of claim 1-6, is characterized in that, said method comprising the steps of:
Under protective atmosphere; the metal Sn of formula ratio is melted and is warming up to 400 ~ 450 DEG C; then the metal Bi of formula ratio, metal In, carbon Nano sol and silane coupling agent is dropped into; 300 ~ 350 DEG C are cooled to after magnetic agitation 15 ~ 30min; add the additive of formula ratio again; after magnetic agitation 15 ~ 30min; metal A g and the Ni metal of formula ratio is added after being warming up to 1100 ~ 1200 DEG C; standing 30 ~ 40min after magnetic agitation 10 ~ 20min, then carries out ingot casting and the air cooling demoulding obtains required product.
8. the preparation method of tin composition according to claim 7, is characterized in that, described protective atmosphere is the combination of any one or at least two kinds in nitrogen, helium, neon or argon gas.
9. the preparation method of the tin composition according to claim 7 or 8, is characterized in that, the speed of magnetic agitation is 1500 ~ 2000r/min.
10. application rights requires the electric wire that the tin composition described in 1-6 prepares, and it is characterized in that, described electric wire comprises heart yearn and surrounding layer, and wherein surrounding layer is obtained by the tin composition described in claim 1-6.
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| CN107254602A (en) * | 2017-06-30 | 2017-10-17 | 朱燕萍 | A kind of tin plating use tin composition of electric wire and preparation method thereof |
| CN108950450A (en) * | 2018-09-03 | 2018-12-07 | 德清县欣琪电子有限公司 | A kind of tin plating solution for copper covered steel wire |
| CN109182943A (en) * | 2018-09-03 | 2019-01-11 | 德清县欣琪电子有限公司 | A kind of tin plating technique of copper covered steel wire |
| EP3637513A4 (en) * | 2017-12-12 | 2021-03-03 | Institute of Physics, Chinese Academy of Sciences | Composite-coated nano-tin negative electrode material, preparation method therefor and use thereof |
| CN112724297A (en) * | 2021-01-20 | 2021-04-30 | 湖州师范学院 | High-temperature-resistant color-changing composition for tin layer |
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