CN102230199A - Aluminum hub non-cyanide copper plating electroplate liquid and electroplate method thereof - Google Patents
Aluminum hub non-cyanide copper plating electroplate liquid and electroplate method thereof Download PDFInfo
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- CN102230199A CN102230199A CN2011101750444A CN201110175044A CN102230199A CN 102230199 A CN102230199 A CN 102230199A CN 2011101750444 A CN2011101750444 A CN 2011101750444A CN 201110175044 A CN201110175044 A CN 201110175044A CN 102230199 A CN102230199 A CN 102230199A
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- aluminium wheel
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Abstract
The invention provides aluminum hub non-cyanide copper plating electroplate liquid and an electroplate method thereof. The aluminum hub non-cyanide copper plating electroplate liquid is characterized by comprising 180 to 220 grams/liter of copper sulfate, 30 to 80 milliliters/liter of sulfuric acid, 80 to 160 ppm of chloridion, 5.0 to 10.0 milliliters/liter of makeup agent U-M, 0.4 to 0.6 milliliters/liter of leveling agent U-A, 0.4 to 0.6 milliliters/liter of brightener U-B and water. The electroplate method comprises the following steps of: soaking an aluminum hub workpiece into non-cyanide zinc deposition liquid, and performing replacement reaction to form a zinc layer on the surface of the aluminum hub workpiece; and putting the aluminum hub workpiece serving as a cathode into non-cyanide copper plating electroplate liquid, and copperizing on the surface of the aluminum hub workpiece by taking phosphor copper as an anode. When the electroplate method is used, the deposition speed is high, the leveling degree of the plating layer is high, needle holes are difficult to form on the plating layer, the internal stress is low, the ductility is enriched, and the environment is not polluted.
Description
Technical field
The present invention relates to aluminium wheel hub non-cyanide plating solution for copper-plating used and electro-plating method thereof, belong to the electroplating technology field.
Background technology
Traditional aluminium wheel hub copper electroplating method was not established heavy zinc step before copper facing, add sodium cyanide in copper plating solution, and what just be commonly called as contains the cyanogen copper electroplating method.Its shortcoming is: (1), under high current density, have a large amount of cyanide gas and separate out, cause very big environmental pollution, simultaneously the electroplating operations worker has also been caused very big occupational hazards.(2) degree of filling and leading up of coating is poor, and internal stress is low, and ductility is bad, is easy to generate plating defects such as pin hole.
Summary of the invention
The objective of the invention is to overcome the problems referred to above, a kind of coating performance is good and toxicity is low and safe aluminium wheel hub non-cyanide plating solution for copper-plating used and electro-plating method thereof are provided.
In order to achieve the above object, the invention provides a kind of aluminium wheel hub non-cyanide plating solution for copper-plating used, it is characterized in that, contain 180～220g/L copper sulfate, 30～80mL/L sulfuric acid, 80～160ppm chlorion, 5.0～10.0mL/L and open cylinder agent U-M, 0.4～0.6mL/L and fill and lead up agent U-A, 0.4～0.6mL/L brightening agent U-B and water.
Preferably, the content of described copper sulfate is 180～200g/L.
Preferably, described vitriolic content is 35～50mL/L.
Preferably, the described content of opening cylinder agent U-M is 6.0～8.0mL/L.
Preferably, the described content of filling and leading up agent U-A is 0.5mL/L.
Preferably, the content of described brightening agent U-B is 0.5mL/L.
The present invention also provides a kind of aluminium wheel hub cyanide-free copper electroplating electro-plating method, it is characterized in that, comprises earlier forming the zinc layer with in the heavy zinc liquid of the no cyanogen of aluminium wheel hub workpiece immersion replacement(metathesis)reaction taking place with the surface at aluminium wheel hub workpiece; Again it is inserted in the non-cyanide plating solution for copper-plating used as negative electrode, with phosphor-copper as anode, at the copper coating of aluminium wheel hub workpiece.
Preferably, the heavy zinc liquid of described no cyanogen is opened by 400～600mL/L that cylinder agent-C2,1～10mL/L open cylinder agent-A3 and water is formed.
More preferably, the described content of opening cylinder agent-C2 is 500mL/L, and the content of opening cylinder agent-A3 is 5mL/L.
Preferably, the temperature of the heavy zinc liquid of described no cyanogen is 18～28 ℃, and the heavy zinc time is 15-120s.
More preferably, the temperature of the heavy zinc liquid of described no cyanogen is 23 ℃, and the heavy zinc time is 30-60s.
Preferably, the temperature of described non-cyanide plating solution for copper-plating used is 21～25 ℃, and the copper facing time is 80～110min, and current density is 2.5～3.2A/ square decimeter.
More preferably, the temperature of described non-cyanide plating solution for copper-plating used is 23 ℃, and the copper facing time is 80～100min, and current density is the 2.8-3.0A/ square decimeter.
The present invention at first with workpiece replacement(metathesis)reaction in the heavy zinc liquid of no cyanogen, forms the thin uniformly zinc layer of a kind of densification, for follow-up copper facing operation provides the good bonding force basis after the pre-treatment of routine; Then, use non-cyanide plating solution for copper-plating used to electroplate, on the basis of heavy zinc layer, copper facing is more than 40 microns.The present invention has sedimentation velocity fast (under the current density of 3.5A/ square decimeter, per minute can plate out 1 micron copper coating), advantages such as coating degree of filling and leading up height to 75%.Coating also have to be difficult for produces advantages such as pin hole, internal stress are low, rich ductility.Owing in copper plating solution, cancelled the interpolation of sodium cyanide, do not have the generation of cyanide gas in the plating tank, effectively protected environment not contaminated, also guarantee galvanizer's Occupational health safety.
Embodiment
Specify the present invention below in conjunction with embodiment.The cylinder agent-C2(that opens among the present invention has another name called TribonC2), open cylinder agent-A3(and have another name called TribonA3), open cylinder agent U-M(and have another name called CUPRACID ULTRA MAKE-UP), fill and lead up agent U-A(and have another name called CUPRACID ULTRA A), brightening agent U-B(has another name called CUPRACID ULTRA B) all can buy in Atotech chemical (Shanghai) Co., Ltd..
Embodiment
(1) preparation of the heavy zinc liquid of no cyanogen:
At 3600*1200*2000(mm
3) in the plating tank of specification, add 2000 liters of pure water, be heated to 25 ℃.Then, adding is opened 2500 liters of cylinder agent-C2, is opened 25 liters of cylinder agent-A3.Add water to 5000 liters, the back insulation of stirring is to 23 ℃, obtains opening no cyanogen that cylinder agent-A3 and water forms and sinking zinc liquid by opened cylinder agent-C2,5mL/L by 500mL/L.
(2) preparation of aluminium wheel hub non-cyanide plating solution for copper-plating used:
At 3600*1500*2500(mm
3) in the plating tank of specification, add 4000 liters of pure water, be heated to 25 ℃.Then, add copper sulfate 1800Kg, 350 liters in sulfuric acid, 1.6 liters of hydrochloric acid then, be stirred to dissolving fully, increase cylinder agent U-M:70 liter again, fill and lead up agent U-A:5 liter, brightening agent U-B:5 liter, stir the back insulation to 23 ℃, add pure water to 10000 liters of final volume, obtain containing 180g/L copper sulfate, 35mL/L sulfuric acid, 160ppm chlorion, 7mL/L and open the aluminium wheel hub non-cyanide plating solution for copper-plating used that cylinder agent U-M, 0.5mL/L fill and lead up agent U-A, 0.5mL/L brightening agent U-B and water.
(3) form the zinc layer on the surface of aluminium wheel hub workpiece:
Aluminium wheel hub workpiece immersed in the heavy zinc liquid of no cyanogen replacement(metathesis)reaction takes place and form the zinc layer with the surface at aluminium wheel hub workpiece, it is 23 ℃ that no cyanogen sinks the temperature of zinc liquid, and sinking the zinc time is 60s.
(4) at the copper coating of aluminium wheel hub workpiece:
The aluminium wheel hub workpiece that the surface is formed the zinc layer is inserted in the non-cyanide plating solution for copper-plating used as negative electrode, with phosphor-copper as anode, at the copper coating of aluminium wheel hub workpiece.The temperature of non-cyanide plating solution for copper-plating used is 23 ℃, and the copper facing time is 100min, and current density is the 2.9A/ square decimeter.
(5) plated item of cyanide-free copper electroplating of the present invention and the traditional performance comparison test result who contains the copper-plated product of cyanogen are as follows: the sequence number project contains cyanogen copper facing cyanide-free copper electroplating test method remarks as a result as a result
1, coating degree of filling and leading up≤50% 〉=75% range estimation is calculated
2, coating corrosion-resistant≤46h 〉=100h salt-spray cabinet
(CASS test)
3, sedimentation velocity≤0.5 μ m/min 〉=1.0 μ m/min Hull Cells test
4, prussiate detection 〉=25Mg/L does not detect prussiate HJ484-2009
5, outward appearance (pin hole, qualification rate≤50% qualification rate 〉=70% range estimation
Bubble, burn)
Claims (10)
1. aluminium wheel hub non-cyanide plating solution for copper-plating used, it is characterized in that, contain 180～220g/L copper sulfate, 30～80mL/L sulfuric acid, 80～160ppm chlorion, 5.0～10.0mL/L and open cylinder agent U-M, 0.4～0.6mL/L and fill and lead up agent U-A, 0.4～0.6mL/L brightening agent U-B and water.
2. aluminium wheel hub non-cyanide plating solution for copper-plating used as claimed in claim 1 is characterized in that the content of described copper sulfate is 180～200g/L.
3. aluminium wheel hub non-cyanide plating solution for copper-plating used as claimed in claim 1 is characterized in that described vitriolic content is 35～50mL/L.
4. aluminium wheel hub non-cyanide plating solution for copper-plating used as claimed in claim 1 is characterized in that, the described content of opening cylinder agent U-M is 6.0～8.0mL/L.
5. aluminium wheel hub non-cyanide plating solution for copper-plating used as claimed in claim 1 is characterized in that, the described content of filling and leading up agent U-A is 0.5mL/L.
6. aluminium wheel hub non-cyanide plating solution for copper-plating used as claimed in claim 1 is characterized in that the content of described brightening agent U-B is 0.5mL/L.
7. an aluminium wheel hub cyanide-free copper electroplating electro-plating method is characterized in that, comprises earlier forming the zinc layer with in the heavy zinc liquid of the no cyanogen of aluminium wheel hub workpiece immersion replacement(metathesis)reaction taking place with the surface at aluminium wheel hub workpiece; Again it is inserted in the described non-cyanide plating solution for copper-plating used of claim 1 as negative electrode, with phosphor-copper as anode, at the copper coating of aluminium wheel hub workpiece.
8. aluminium wheel hub cyanide-free copper electroplating electro-plating method as claimed in claim 7 is characterized in that, the heavy zinc liquid of described no cyanogen is opened by 400～600mL/L that cylinder agent-C2,1～10mL/L open cylinder agent-A3 and water is formed.
9. aluminium wheel hub cyanide-free copper electroplating electro-plating method as claimed in claim 7 is characterized in that, the temperature of the heavy zinc liquid of described no cyanogen is 18～28 ℃, and the heavy zinc time is 15-120s.
10. aluminium wheel hub cyanide-free copper electroplating electro-plating method as claimed in claim 7 is characterized in that the temperature of described non-cyanide plating solution for copper-plating used is 21～25 ℃, and the copper facing time is 80～110min, and current density is 2.5～3.2A/ square decimeter.
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| CN2011101750444A CN102230199A (en) | 2011-06-27 | 2011-06-27 | Aluminum hub non-cyanide copper plating electroplate liquid and electroplate method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087994A (en) * | 2014-06-30 | 2014-10-08 | 江西百川电导体有限公司 | Method for preparing copper-clad steel bandlet by electrodeposition |
| CN111101095A (en) * | 2020-01-10 | 2020-05-05 | 广州三孚新材料科技股份有限公司 | Chromium-free metallization method for plastic substrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598059A (en) * | 2004-08-05 | 2005-03-23 | 广州杰赛科技股份有限公司 | Magnesium alloy non cyanogen plating copper chemical plating nickle and its plating process |
| CN101063217A (en) * | 2007-04-28 | 2007-10-31 | 广州市三孚化工有限公司 | Non-cyanogen high-density copper plating solution and Aluminium alloy wheel hub electroplating technique using same |
| CN101768768A (en) * | 2008-12-26 | 2010-07-07 | 比亚迪股份有限公司 | Aluminum alloy cyanide-free and nickel-free electroplating method and electroplating products thereof |
-
2011
- 2011-06-27 CN CN2011101750444A patent/CN102230199A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598059A (en) * | 2004-08-05 | 2005-03-23 | 广州杰赛科技股份有限公司 | Magnesium alloy non cyanogen plating copper chemical plating nickle and its plating process |
| CN101063217A (en) * | 2007-04-28 | 2007-10-31 | 广州市三孚化工有限公司 | Non-cyanogen high-density copper plating solution and Aluminium alloy wheel hub electroplating technique using same |
| CN101768768A (en) * | 2008-12-26 | 2010-07-07 | 比亚迪股份有限公司 | Aluminum alloy cyanide-free and nickel-free electroplating method and electroplating products thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087994A (en) * | 2014-06-30 | 2014-10-08 | 江西百川电导体有限公司 | Method for preparing copper-clad steel bandlet by electrodeposition |
| CN111101095A (en) * | 2020-01-10 | 2020-05-05 | 广州三孚新材料科技股份有限公司 | Chromium-free metallization method for plastic substrate |
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Application publication date: 20111102 |