CN103572333A - Brush plating liquid and brush plating method for carrying out brush plating on copper on surface of copper-aluminum composite busbar - Google Patents
Brush plating liquid and brush plating method for carrying out brush plating on copper on surface of copper-aluminum composite busbar Download PDFInfo
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- CN103572333A CN103572333A CN201310560872.9A CN201310560872A CN103572333A CN 103572333 A CN103572333 A CN 103572333A CN 201310560872 A CN201310560872 A CN 201310560872A CN 103572333 A CN103572333 A CN 103572333A
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Abstract
The invention provides a method for carrying out brush plating on copper on the surface of a copper-aluminum composite busbar and brush plating liquid. The method comprises the following steps: firstly polishing the surface of the copper-aluminum composite busbar to be subjected to the brush plating by adopting a polisher till the surface is bright and smooth without a hole; then wiping the surface by using an electrode bar wound with application cotton and dipped with an activate fluid; and then carrying out brush plating for 5 minutes by using the electrode bar wound with the application cotton and dipped with the brush plating liquid. The brush plating liquid comprises the following components in percentage by weight: 5%-8% of copper pyrophosphate, 26%-29% of potassium pyrophosphate and 0.2%-0.4% of ferric citrate. The activate fluid comprises the following components in percentage by weight: 0.2%-0.4% of sodium citrate, 0.1%-0.2% of citric acid and 2%-4% of nickel chloride. The brush plating liquid and the brush plating method which are provided by the invention can achieve the thickness of 1 mm for 5 minutes and are high in bonding strength without cracking during bending.
Description
Technical field
The present invention relates to field of electroplating, relate in particular to a kind of for the copper-plated brush plating liquid of copper aluminium composite bar surface brush and brush plating method.
Background technology
Conducting electricity very well of copper busbar, but price, the low price of aluminium busbar, but conductivity not as copper busbar good.In order to guarantee good conductivity on the basis reducing costs, on market, constantly there are the substitute products of copper busbar.Copper aluminium composite bar, owing to combining the advantage of copper busbar and aluminium busbar, has obtained application more and more widely.
In the use procedure of copper aluminium composite bar, for anti-oxidation or other objects, usually need the exposed aluminium copper coating of sawing face or other positions.
Adopt the method for brush plating can repair the problem on copper aluminium composite bar, but because the fusing point of copper is greater than the fusing point of aluminium, in the temperature of aluminium fusing, two kinds of metals can not fuse together completely, cause two kinds of intermetallic combination strong degrees poor, and section easily appears in the product of producing.
Summary of the invention
The present invention proposes a kind ofly for the copper-plated brush plating liquid of copper aluminium composite bar surface brush and brush plating method, brush plating fast, can reach 1mm thickness in 5 minutes, and the bonding strength of the aluminium after brush plating and copper is high, not easy to crack.
First aspect present invention is provided for the copper-plated brush plating liquid of copper aluminium composite bar surface brush, following component, according to weight percent, consists of: cupric pyrophosphate 5% to 8%, potassium pyrophosphate 26% to 29%, ironic citrate 0.2% to 0.4%.
The pH value of described brush plating liquid is 8-9.
Preferably, described brush plating liquid is comprised of according to weight percent following component: cupric pyrophosphate 7%, potassium pyrophosphate 27% and ironic citrate 0.3%.
Second aspect present invention provides a kind of and comprises above-mentioned brush plating liquid for the copper coating of copper aluminium composite bar surface brush, specifically comprises the following steps:
S1, adopt sander polishing to treat that the surface of copper aluminium composite bar of brush plating is smooth to surface-brightening, there is no hole;
S2, use are tied with the cotton electrode bar of application, are stained with activation solution, wipe surfaces;
S3, use are tied with the cotton electrode bar of application, are stained with brush plating liquid, brush plating 5 minutes.
Further, described activation solution is comprised of according to weight percent following component: Trisodium Citrate 0.2 to 0.4%, citric acid 0.1% to 0.2%, nickelous chloride 2% to 4%.
Preferably, described activation solution is comprised of according to weight percent following component: Trisodium Citrate 0.3%, citric acid 0.1%, nickelous chloride 3%.
Based on disclosing of technique scheme, described in provided by the invention, for the copper-plated brush plating liquid of copper aluminium composite bar surface brush and brush plating method, pass through to adopt Trisodium Citrate 0.2 to 0.4%, citric acid 0.1% to 0.2%, the first effects on surface of activation solution of nickelous chloride 2% to 4% activates after wiping, with the brush plating liquid of cupric pyrophosphate 5% to 8%, potassium pyrophosphate 26% to 29%, ironic citrate 0.2% to 0.4%, carry out quick brush plating again, within 5 minutes, just can reach 1mm thick, and bonding strength is high, bending is not ftractureed.
Accompanying drawing explanation
Fig. 1 is a kind of schema for the copper coating of copper aluminium composite bar surface brush provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Please refer to Fig. 1, the invention provides a kind ofly for the copper coating of copper aluminium composite bar surface brush, comprise the following steps:
S1, adopt sander polishing to treat that the surface of copper aluminium composite bar of brush plating is smooth to surface-brightening, there is no hole;
S2, use are tied with the cotton electrode bar of application, are stained with activation solution, wipe surfaces;
S3, use are tied with the cotton electrode bar of application, are stained with brush plating liquid, brush plating 5 minutes.
Described brush plating liquid is comprised of according to weight percent following component: cupric pyrophosphate 5% to 8%, potassium pyrophosphate 26% to 29%, ironic citrate 0.2% to 0.4%, and the pH value of described brush plating liquid is 8-9.
Described activation solution is comprised of according to weight percent following component: Trisodium Citrate 0.2 to 0.4%, citric acid 0.1% to 0.2%, nickelous chloride 2% to 4%.
Embodiment 1
First with sander polishing, treat that the surface of copper aluminium composite bar of brush plating is smooth to surface-brightening, there is no hole, then adopt activation solution to be formed according to weight percent by following component: Trisodium Citrate 0.2, citric acid 0.1%, nickelous chloride 2% activates wiping; Then adopt brush plating liquid to be formed according to weight percent by following component: cupric pyrophosphate 5%, potassium pyrophosphate 26%, ironic citrate 0.2% carry out brush plating, and the pH value of described brush plating liquid is 8.
Embodiment 2
First with sander polishing, treat that the surface of copper aluminium composite bar of brush plating is smooth to surface-brightening, there is no hole, then adopt activation solution to be formed according to weight percent by following component: Trisodium Citrate 0.4%, citric acid 0.2%, nickelous chloride 4% activates wiping; Then adopt brush plating liquid to be formed according to weight percent by following component: cupric pyrophosphate 8%, potassium pyrophosphate 29%, ironic citrate 0.4% carry out brush plating, and the pH value of described brush plating liquid is 9.
Embodiment 3
First with sander polishing, treat that the surface of copper aluminium composite bar of brush plating is smooth to surface-brightening, there is no hole, then adopt activation solution to be formed according to weight percent by following component: Trisodium Citrate 0.3%, citric acid 0.1%, nickelous chloride 3% activates wiping; Adopt again brush plating liquid to be formed according to weight percent by following component: cupric pyrophosphate 7%, potassium pyrophosphate 27% and ironic citrate 0.3% carries out brush plating, and the pH value of described brush plating liquid is 8.5.
In practical application, preferred embodiment 3, adopt this brush plating liquid and brush plating method just can reach 1mm in 5 minutes thick, and bonding strength is high, and bending is not ftractureed.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. for the copper-plated brush plating liquid of copper aluminium composite bar surface brush, it is characterized in that, described brush plating liquid is comprised of according to weight percent following component: cupric pyrophosphate 5% to 8%, potassium pyrophosphate 26% to 29%, ironic citrate 0.2% to 0.4%.
2. according to claim 1 a kind ofly it is characterized in that for the copper-plated brush plating liquid of copper aluminium composite bar surface brush, the pH value of described brush plating liquid is 8-9.
3. according to claim 1 a kind ofly it is characterized in that for the copper-plated brush plating liquid of copper aluminium composite bar surface brush, described brush plating liquid is comprised of according to weight percent following component: cupric pyrophosphate 7%, potassium pyrophosphate 27% and ironic citrate 0.3%.
4. for the copper coating of copper aluminium composite bar surface brush, comprise if claim 1 is to brush plating liquid claimed in claim 3, it is characterized in that, comprise the following steps:
S1, adopt sander polishing to treat that the surface of copper aluminium composite bar of brush plating is smooth to surface-brightening, there is no hole;
S2, use are tied with the cotton electrode bar of application, are stained with activation solution, wipe surfaces;
S3, use are tied with the cotton electrode bar of application, are stained with brush plating liquid, brush plating 5 minutes.
5. according to claim 4 a kind ofly it is characterized in that for the copper coating of copper aluminium composite bar surface brush, described activation solution is comprised of according to weight percent following component: Trisodium Citrate 0.2 to 0.4%, citric acid 0.1% to 0.2%, nickelous chloride 2% to 4%.
6. according to claim 5 a kind ofly it is characterized in that for the copper coating of copper aluminium composite bar surface brush, described activation solution is comprised of according to weight percent following component: Trisodium Citrate 0.3%, citric acid 0.1%, nickelous chloride 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560872.9A CN103572333A (en) | 2013-11-12 | 2013-11-12 | Brush plating liquid and brush plating method for carrying out brush plating on copper on surface of copper-aluminum composite busbar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560872.9A CN103572333A (en) | 2013-11-12 | 2013-11-12 | Brush plating liquid and brush plating method for carrying out brush plating on copper on surface of copper-aluminum composite busbar |
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| CN103572333A true CN103572333A (en) | 2014-02-12 |
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| CN201310560872.9A Pending CN103572333A (en) | 2013-11-12 | 2013-11-12 | Brush plating liquid and brush plating method for carrying out brush plating on copper on surface of copper-aluminum composite busbar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483782A (en) * | 2016-01-08 | 2016-04-13 | 昆明天经电力设备有限公司 | Busbar brush tin electroplating process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684564A (en) * | 2008-09-24 | 2010-03-31 | 郭崇武 | Pyrophosphate copper plating on steel parts directly by electrolytic activation protection method |
| CN102181892A (en) * | 2011-05-18 | 2011-09-14 | 中国电子科技集团公司第三十八研究所 | Method for improving bonding force of non-cyanide silver plating layer on nickel layer |
| CN102409377A (en) * | 2011-11-23 | 2012-04-11 | 江苏大学 | Electroplating preparation method and device of copper/aluminum composite conductive bar |
| CN103255450A (en) * | 2013-05-31 | 2013-08-21 | 四川材料与工艺研究所 | Aluminum brushing electroplating method by using ionic liquid |
-
2013
- 2013-11-12 CN CN201310560872.9A patent/CN103572333A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684564A (en) * | 2008-09-24 | 2010-03-31 | 郭崇武 | Pyrophosphate copper plating on steel parts directly by electrolytic activation protection method |
| CN102181892A (en) * | 2011-05-18 | 2011-09-14 | 中国电子科技集团公司第三十八研究所 | Method for improving bonding force of non-cyanide silver plating layer on nickel layer |
| CN102409377A (en) * | 2011-11-23 | 2012-04-11 | 江苏大学 | Electroplating preparation method and device of copper/aluminum composite conductive bar |
| CN103255450A (en) * | 2013-05-31 | 2013-08-21 | 四川材料与工艺研究所 | Aluminum brushing electroplating method by using ionic liquid |
Non-Patent Citations (2)
| Title |
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| 刘乃武等，: ""电刷镀在铝线圈上的应用"", 《电镀与精饰》 * |
| 张允诚等，: "《电镀手册》", 31 December 2011, 国防工业出版社， * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483782A (en) * | 2016-01-08 | 2016-04-13 | 昆明天经电力设备有限公司 | Busbar brush tin electroplating process |
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