CN103952735B - A kind of continuous copper-plating of steel strip technique - Google Patents
A kind of continuous copper-plating of steel strip technique Download PDFInfo
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- CN103952735B CN103952735B CN201410194964.4A CN201410194964A CN103952735B CN 103952735 B CN103952735 B CN 103952735B CN 201410194964 A CN201410194964 A CN 201410194964A CN 103952735 B CN103952735 B CN 103952735B
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- plating
- copper
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- steel strip
- washing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000007747 plating Methods 0.000 title claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000005238 degreasing Methods 0.000 claims abstract description 10
- 210000005056 cell body Anatomy 0.000 claims abstract description 8
- 238000009713 electroplating Methods 0.000 claims abstract description 8
- 230000004913 activation Effects 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000001994 activation Methods 0.000 claims abstract description 4
- 238000002203 pretreatment Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims abstract description 4
- LEKPFOXEZRZPGW-UHFFFAOYSA-N copper;dicyanide Chemical compound [Cu+2].N#[C-].N#[C-] LEKPFOXEZRZPGW-UHFFFAOYSA-N 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- -1 concentration 20g/L Substances 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims description 2
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 238000004070 electrodeposition Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- Electroplating Methods And Accessories (AREA)
Abstract
A kind of continuous copper-plating of steel strip technique adopts cyanide copper plating process to electroplate.Mainly include pretreatment process and electro-coppering process.Pre-treatment mainly includes ultrasonic oil removal, electrolytic degreasing, washing, activation, washing；Electroplating process mainly includes copper facing, recovery, washing.Technology groove in continuous copper-plating of steel strip adopts the isosceles trapezoid groove with transparent openable observation window of closed, and cell body is designed as the cell body that top is isosceles trapezoid；Three transparent openable observation windows are respectively designed at the position, two slopes of groove；Article two, be respectively provided with between steel band and 3 anodes 4 block lengths equal there is nonmetal baffle plate corrosion-resistant, resistant to elevated temperatures, substantial amounts of electric lines of force, coating uniform ground will not be assembled in the edge of steel band.
Description
Technical field
The present invention relates to the technical field of alkaline copper plating, specifically a kind of continuous copper-plating of steel strip technique.
Background technology
Along with China's industrial expansion, especially the developing rapidly of automobile and other industries, the demand of copper and copper product is increased day by day.But China is a lean copper country, and copper relies primarily on import, add that copper processing rises quickly in the world, brings bigger cost pressure to industries such as China's automobiles.Pass through demonstration and it was verified that in industries such as automobile, household electrical appliances, steel copper facing goods replace copper product to be feasible, and performance even in some aspects is more better than copper on the contrary.Copper facing steel band is mainly used to produce side enlightening pipe, it is common to be applied in the aspects such as automobile oil pipe, floor heating pipe, air-conditioner pipe.Use iron instead of copper not still economic problems, moreover it is possible to reduces carbon emission in a large number.Steel band copper facing has good Social benefit and economic benefit thus.Utilize cyanide electroplating, it is possible to obtain densification, the coating that smooth, adhesion is good, so continuous copper-plating of steel strip adopts cyanide copper plating process.In steel band produces, the electric lines of force between anode and steel band is easily assembled at steel band edge, causes that steel band coating produces the difference of thickness, affects the performance of coating.
Summary of the invention
A kind of continuous copper-plating of steel strip technique, mainly includes pretreatment process and electro-coppering process.Pre-treatment mainly includes electrochemical deoiling, electrolytic degreasing, washing, activation, washing；Electroplating process mainly includes copper pre-plating, main copper facing, recovery, washing.Technology groove in continuous copper-plating of steel strip adopts the isosceles trapezoid groove with transparent openable observation window of closed, and cell body is designed as the cell body that top is isosceles trapezoid；Three transparent openable observation windows are respectively designed at the position, two slopes of groove；Article two, be respectively provided with between steel band and 3 anodes 4 block lengths equal there is nonmetal baffle plate corrosion-resistant, resistant to elevated temperatures；In steel band produces, high Current Zone is often at steel band edge place, i.e. edge effect, edge effect can cause that the difference in thickness of high Current Zone and low current district coating is bigger, after there is corrosion resistance, resistant to elevated temperatures nonmetal baffle plate, electric lines of force between steel band and anode can walk around baffle plate, and substantial amounts of electric lines of force, coating uniform ground will not be assembled in the edge of steel band.
Detailed description of the invention
A kind of continuous copper-plating of steel strip technique provided by the invention, mainly includes pretreatment process and electro-coppering process, and pre-treatment mainly includes electrochemical deoiling, electrolytic degreasing, washing, activation, washing；Electroplating process mainly includes copper facing, recovery, washing.Wherein oil removal treatment adopts ultrasonic oil removal to combine, with male-female pole, the mode that oil removing be combined with each other.
1. hot water wash adopts the hot water of 70～80 DEG C to clean 20～30s.
2. oil removal treatment includes ultrasonic oil removal and electrolytic degreasing, and electrolytic degreasing is the associating oil removing of male-female pole.First, carrying out electrochemical deoiling, the time is 1～3min, then carries out electrolytic degreasing, during electrolytic degreasing, and first negative electrode oil removing 1min, then anode oil removing 15s.
Described ultrasonic oil removal, ultrasonic oil removal abluent, concentration is 5%, and temperature is 40 ~ 50 ° of C, and ultrasonic frequency is 25kHz.
3. in activation processing, the aggressive agent in activating solution is hydrochloric acid, concentration 20g/L, and solution temperature is 35 ± 5 DEG C, and cathode-current density is 7～10A/dm2, erosion time is 20～30s.
4. the pure water that the washing after oil removing and the washing after activation all adopt concentration to be 0.5 below μ S, is carried out, and cleaning water temperature is 30～40 DEG C.
5. a continuous copper-plating of steel strip technique, wherein electroplating process is copperizing continuously process.Copper-plated plating solution is mainly made up of Cupricin., Cyanogran. and sodium hydroxide, and during plating, cathode-current density is 0.2～2A/dm2, and temperature is 55～65 DEG C, and the thickness of coating is controlled by electric current and tape handler belt speed.Cleaning in each process washes the pure water adopting concentration to be 0.5 below μ S.
Embodiment 1
Technology groove in continuous copper-plating of steel strip adopts the isosceles trapezoid groove with the transparent observation window automatically turned on of closed, and cell body is designed as the cell body that top is isosceles trapezoid；Three transparent openable observation windows are respectively designed at the position, two slopes of groove；Article two, be respectively provided with between steel band and 3 anodes 4 block lengths equal there is nonmetal baffle plate corrosion-resistant, resistant to elevated temperatures；In steel band produces, high Current Zone is often at steel band edge place, i.e. edge effect, edge effect can cause that the difference in thickness of high Current Zone and low current district coating is bigger, after there is corrosion resistance, resistant to elevated temperatures nonmetal baffle plate, electric lines of force between steel band and anode can walk around baffle plate, and substantial amounts of electric lines of force, coating uniform ground will not be assembled in the edge of steel band.
Claims (1)
1. a continuous copper-plating of steel strip technique, adopts cyanide copper plating process to electroplate, mainly includes pretreatment process and electro-coppering process, and pre-treatment mainly includes ultrasonic oil removal, electrolytic degreasing, washing, activation, washing；Electroplating process mainly includes copper facing, recovery, washing, it is characterised in that: the technology groove in continuous copper-plating of steel strip adopts the isosceles trapezoid groove with transparent openable observation window of closed, and cell body is designed as the cell body that top is isosceles trapezoid；Three transparent openable observation windows are respectively designed at the position, two slopes of groove；Article two, be respectively provided with between steel band and 3 anodes 4 block lengths equal there is nonmetal baffle plate corrosion-resistant, resistant to elevated temperatures；
(1) ultrasonic oil removal in pretreatment process, ultrasonic oil removal abluent, concentration is 5%, and temperature is 40 ~ 50 DEG C, and ultrasonic frequency is 25kHz；
(2) in pretreatment process, electrolytic degreasing liquid is active alkali, and alkali liquid temperature is 60～80 DEG C, and electric current density is 8～10A/dm2；
(3) in pretreatment process, electrolytic degreasing adopts the associating oil removing of male-female pole, and wherein the negative electrode oil removing time is long, and the anode oil removing time is short；
(4) in pretreatment process, the aggressive agent in activating solution is hydrochloric acid, concentration 20g/L, and solution temperature is 35 ± 5 DEG C, and cathode-current density is 7～10A/dm2, erosion time is 20～30s；
(5) electro-coppering adopts 6 coating baths being arranged in order, 1 accumulator tank and 1 rinse bath；
(6) plating solution circulating filtration by filter in coating bath in continuous copper-plating of steel strip, accelerates electrodeposition rate；
(7) in continuous copper-plating of steel strip, the steel band exit of electroplating bath adopts the mode of atomizing spray that the plating solution on steel band is reclaimed；
(8) copper facing adopts the mode of multistation continuous electroplating, and plating solution is mainly made up of Cupricin., Cyanogran. and sodium hydroxide, and during plating, cathode-current density is 0.2～2A/dm2, temperature is 55～65 DEG C, and the thickness of copper plate determines according to electric current or transfer rate；
(9) cleaning in each process washes the pure water adopting electrical conductivity to be 0.5 below μ S.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410194964.4A CN103952735B (en) | 2014-05-11 | 2014-05-11 | A kind of continuous copper-plating of steel strip technique |
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| CN201410194964.4A CN103952735B (en) | 2014-05-11 | 2014-05-11 | A kind of continuous copper-plating of steel strip technique |
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| Publication Number | Publication Date |
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| CN103952735A CN103952735A (en) | 2014-07-30 |
| CN103952735B true CN103952735B (en) | 2016-06-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604399A (en) * | 2017-10-31 | 2018-01-19 | 广东骏亚电子科技股份有限公司 | A kind of electro-plating method based on ultrasonic wave |
| CN110666279A (en) * | 2019-10-15 | 2020-01-10 | 国营第六一六厂 | Brazing method for aluminum bronze pipe joint |
| CN114214682B (en) * | 2021-12-22 | 2023-05-30 | 东莞市金瑞五金股份有限公司 | Electroplating process and electroplating equipment for copper plating of workpiece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050996A (en) * | 1976-11-03 | 1977-09-27 | General Motors Corporation | Electochemically exchanging a steel surface with a pure iron surface |
| US4582573A (en) * | 1985-02-25 | 1986-04-15 | Comet Research, Inc. | Method for treating a single side of a metallic sheet |
| CN101665962A (en) * | 2009-09-04 | 2010-03-10 | 厦门大学 | Alkaline non-cyanide plating solution for copper-plating used on iron and steel base and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0726231B2 (en) * | 1986-12-05 | 1995-03-22 | 住友金属工業株式会社 | Molten salt electroplating method for steel materials |
| JP2000045094A (en) * | 1998-07-28 | 2000-02-15 | Sumitomo Metal Mining Co Ltd | Plating method of tape-like base body |
| CN202175729U (en) * | 2011-05-13 | 2012-03-28 | 山东建筑大学 | Plating tank capable of continuously plating copper on steel belt |
| CN202090087U (en) * | 2011-05-13 | 2011-12-28 | 山东建筑大学 | Atomizing cleaning device for continuous copper-plating of steel strip |
| CN102605399B (en) * | 2011-09-29 | 2014-08-06 | 山东建筑大学 | On-line recycling method for steel strip continuous copper plating |
| CN102605400B (en) * | 2011-09-29 | 2014-10-08 | 山东建筑大学 | Steel strip continuous copper plating process |
| CN203159735U (en) * | 2013-03-24 | 2013-08-28 | 山东建筑大学 | Device for homogenizing coatings in steel strip continuous copper plating |
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- 2014-05-11 CN CN201410194964.4A patent/CN103952735B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050996A (en) * | 1976-11-03 | 1977-09-27 | General Motors Corporation | Electochemically exchanging a steel surface with a pure iron surface |
| US4582573A (en) * | 1985-02-25 | 1986-04-15 | Comet Research, Inc. | Method for treating a single side of a metallic sheet |
| CN101665962A (en) * | 2009-09-04 | 2010-03-10 | 厦门大学 | Alkaline non-cyanide plating solution for copper-plating used on iron and steel base and preparation method thereof |
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| CN103952735A (en) | 2014-07-30 |
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Inventor after: Zheng Wei Inventor after: Shi Lei Inventor after: Luan Yuqing Inventor after: Xu Yong Inventor after: Liu Kegao Inventor after: Song Wenting Inventor before: Shi Lei Inventor before: Xu Yong Inventor before: Wang Zhigang Inventor before: Liu Kegao Inventor before: Lin Xiaojuan Inventor before: Wang Shengnan |
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Effective date of registration: 20160512 Address after: Fengming road Licheng District 250101 Shandong city of Ji'nan province Shandong Jianzhu University No. 1000 Applicant after: Shandong Construction University Address before: Fengming road Licheng District 250101 Shandong city of Ji'nan province Shandong Jianzhu University No. 1000 Applicant before: Shandong Construction University Applicant before: Shi Lei |
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