CN102383178B - Stripping solution for vehicle connector electroplated terminal plating - Google Patents
Stripping solution for vehicle connector electroplated terminal plating Download PDFInfo
- Publication number
- CN102383178B CN102383178B CN201110352048.5A CN201110352048A CN102383178B CN 102383178 B CN102383178 B CN 102383178B CN 201110352048 A CN201110352048 A CN 201110352048A CN 102383178 B CN102383178 B CN 102383178B
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- CN
- China
- Prior art keywords
- sulfuric acid
- hydrogen peroxide
- sodium acetate
- ammonium fluoride
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007747 plating Methods 0.000 title abstract description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 34
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 34
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 16
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 16
- 239000001632 sodium acetate Substances 0.000 claims abstract description 16
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 14
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 19
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 claims description 13
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 12
- 239000012964 benzotriazole Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000006479 redox reaction Methods 0.000 abstract description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 abstract 3
- 239000003112 inhibitor Substances 0.000 abstract 3
- 230000002301 combined effect Effects 0.000 abstract 1
- 229920000620 organic polymer Polymers 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 3
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a stripping solution for vehicle connector electroplated terminal plating, and the stripping solution mainly comprises the following components: 120-170 ml of sulfuric acid with a concentration mass fraction of 98%, 70-100 ml of hydrogen peroxide with a concentration mass fraction of 30%, 90-100 g of ammonium fluoride, 30-50 g of sodium acetate, 5-8 g of corrosion inhibitors, 0.2-0.5 g of polyvinyl alcohol with a molecular weight of 6000-10000; sulfuric acid is added slowly into 0.5 L water; polyvinyl alcohol is added, stirred and dissolved; the solution is allowed to stand and is cooled; when the temperature is below 30 DEG C, ammonium fluoride, sodium acetate, and the corrosion inhibitor are added, stirred and dissolved; hydrogen peroxide is added; and finally water is added to obtain a volume of 1 L. With the combined effect of sulfuric acid and hydrogen peroxide, an oxidation-reduction reaction is performed with metallic tin; an oxide layer is dissolvd by ammonium fluoride and sodium acetate, which facilitates further reaction of the tin layer; the organic polymer substance can allow the tin layer reaction to perform uniformly, allow a stripping layer to be bright; and the corrosion inhibitor can ensure that over-corrosion of a substrate copper layer does not occur.
Description
Technical field
The present invention relates to a kind of decoating liquid for automobile connector clip plated terminals coating.
Background technology
When automobile connector clip plated terminals and copper strips, eleetrotinplate and tin alloy coat are more.In electroplating process, can produce poor platings, at this moment just need to, by poor platings stripping in the situation that not injuring base material, then again electroplate.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of decoating liquid for automobile connector clip plated terminals coating.
Technical scheme of the present invention is: a kind of decoating liquid for automobile connector clip plated terminals coating, decoating liquid mainly contains following one-tenth and is grouped into: sulfuric acid 120 ~ 170ml that concentration massfraction is 98%, concentration massfraction is 30% hydrogen peroxide 70 ~ 100 ml, Neutral ammonium fluoride 90 ~ 100g, sodium acetate 30 ~ 50 g, inhibiter is 5 ~ 8 g, molecular weight is 6000 ~ 10000 polyvinyl alcohol 0.2 ~ 0.5 g, sulfuric acid is slowly added in 0.5L water, add polyvinyl alcohol, standing cooling after stirring and dissolving, temperature is lower than 30 ℃, by Neutral ammonium fluoride, sodium acetate and inhibiter add, after stirring and dissolving, add hydrogen peroxide, finally add water and be settled to 1L.
Described inhibiter is the mixture of benzotriazole BTA and tolyltriazole TTA, and the mass ratio of benzotriazole BTA and tolyltriazole TTA is 1 ~ 2:9.
The invention has the beneficial effects as follows: decoating liquid is for take sulfuric acid and hydrogen peroxide as main acidic oxidation liquid, minimum to copper matrix corrosion, steps back matrix surface light.Sulfuric acid and hydrogen peroxide acting in conjunction, with metallic tin generation redox reaction, Neutral ammonium fluoride and sodium acetate dissolve zone of oxidation, be beneficial to the further reaction of tin layer, polymer can make the reaction of tin layer evenly carry out, and makes strip aspect light, and inhibiter guarantees that excessive erosion does not occur matrix copper layer.Decoating liquid can spray bad product, immersion treatment, generally can the stripping of tin and tin alloy coat is clean in one minute, and it is larger that this formula can make every liter of product move back tin amount, and decoating liquid preparation is simple, easily operation.
Embodiment
Embodiment 1
A kind of decoating liquid for automobile connector clip plated terminals coating, decoating liquid mainly contains following one-tenth and is grouped into: sulfuric acid 120 ml that concentration massfraction is 98%, concentration massfraction is 30% hydrogen peroxide 70 ml, Neutral ammonium fluoride 90 g, sodium acetate 30 g, inhibiter is 5 ~ 8 g, inhibiter is the mixture of benzotriazole BTA and tolyltriazole TTA, benzotriazole BTA 0.5 g, tolyltriazole TTA 4.5 g, molecular weight is 6000 ~ 10000 polyvinyl alcohol 0.2 g, sulfuric acid is slowly added in 0.5L water, add polyvinyl alcohol, standing cooling after stirring and dissolving, temperature is lower than 30 ℃, by Neutral ammonium fluoride, sodium acetate and inhibiter add, after stirring and dissolving, add hydrogen peroxide, finally add water and be settled to 1L.
Embodiment 2
A kind of decoating liquid for automobile connector clip plated terminals coating, decoating liquid mainly contains following one-tenth and is grouped into: the sulfuric acid 170ml that concentration massfraction is 98%, concentration massfraction is 30% hydrogen peroxide 100 ml, Neutral ammonium fluoride 100g, sodium acetate 50 g, inhibiter is that inhibiter is the mixture of benzotriazole BTA and tolyltriazole TTA, benzotriazole BTA 0.8g, tolyltriazole TTA7.2 g, molecular weight is 6000 ~ 10000 polyvinyl alcohol 0.5 g, sulfuric acid is slowly added in 0.5L water, add polyvinyl alcohol, standing cooling after stirring and dissolving, temperature is lower than 30 ℃, by Neutral ammonium fluoride, sodium acetate and inhibiter add, after stirring and dissolving, add hydrogen peroxide, finally add water and be settled to 1L.
Embodiment 3
A kind of decoating liquid for automobile connector clip plated terminals coating, decoating liquid mainly contains following one-tenth and is grouped into: the sulfuric acid 150ml that concentration massfraction is 98%, concentration massfraction is 30% hydrogen peroxide 80 ml, Neutral ammonium fluoride 95g, sodium acetate 40 g, inhibiter is the mixture of benzotriazole BTA and tolyltriazole TTA, benzotriazole BTA0.6 g, tolyltriazole TTA 6.6 g, molecular weight is 6000 ~ 10000 polyvinyl alcohol 0.4 g, sulfuric acid is slowly added in 0.5L water, add polyvinyl alcohol, standing cooling after stirring and dissolving, temperature is lower than 30 ℃, by Neutral ammonium fluoride, sodium acetate and inhibiter add, after stirring and dissolving, add hydrogen peroxide, finally add water and be settled to 1L.
Embodiment 4
A kind of decoating liquid for automobile connector clip plated terminals coating, decoating liquid mainly contains following one-tenth and is grouped into: sulfuric acid 120 ~ 170ml that concentration massfraction is 98%, concentration massfraction is 30% hydrogen peroxide 70 ~ 100 ml, Neutral ammonium fluoride 90 ~ 100g, sodium acetate 30 ~ 50 g, inhibiter is 5 ~ 8 g, inhibiter is the mixture of benzotriazole BTA and tolyltriazole TTA, the mass ratio of benzotriazole BTA and tolyltriazole TTA is 1 ~ 2:9, molecular weight is 6000 ~ 10000 polyvinyl alcohol 0.2 ~ 0.5 g, sulfuric acid is slowly added in 0.5L water, add polyvinyl alcohol, standing cooling after stirring and dissolving, temperature is lower than 30 ℃, by Neutral ammonium fluoride, sodium acetate and inhibiter add, after stirring and dissolving, add hydrogen peroxide, finally add water and be settled to 1L.
Claims (1)
1. the decoating liquid for automobile connector clip plated terminals coating, it is characterized in that: decoating liquid mainly contains following one-tenth and is grouped into: sulfuric acid 120 ~ 170ml that concentration massfraction is 98%, concentration massfraction is 30% hydrogen peroxide 70 ~ 100 ml, Neutral ammonium fluoride 90 ~ 100g, sodium acetate 30 ~ 50 g, inhibiter is 5 ~ 8 g, molecular weight is 6000 ~ 10000 polyvinyl alcohol 0.2 ~ 0.5 g, sulfuric acid is slowly added in 0.5L water, add polyvinyl alcohol, standing cooling after stirring and dissolving, temperature is lower than 30 ℃, by Neutral ammonium fluoride, sodium acetate and inhibiter add, after stirring and dissolving, add hydrogen peroxide, finally add water and be settled to 1L, described inhibiter is the mixture of benzotriazole BTA and tolyltriazole TTA, the mass ratio of benzotriazole BTA and tolyltriazole TTA is 1 ~ 2:9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110352048.5A CN102383178B (en) | 2011-11-09 | 2011-11-09 | Stripping solution for vehicle connector electroplated terminal plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110352048.5A CN102383178B (en) | 2011-11-09 | 2011-11-09 | Stripping solution for vehicle connector electroplated terminal plating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102383178A CN102383178A (en) | 2012-03-21 |
| CN102383178B true CN102383178B (en) | 2014-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110352048.5A Active CN102383178B (en) | 2011-11-09 | 2011-11-09 | Stripping solution for vehicle connector electroplated terminal plating |
Country Status (1)
| Country | Link |
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| CN (1) | CN102383178B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839378B (en) * | 2012-09-29 | 2014-06-11 | 株洲南车时代电气股份有限公司 | Chemical deplating liquid for nickel-plating layer of copper busbar and application method of chemical deplating liquid |
| CN105714298B (en) * | 2016-03-23 | 2019-01-29 | 广东利尔化学有限公司 | It is a kind of based on sulfuric acid-molysite system etching agent and preparation method thereof |
| CN109652806B (en) * | 2019-01-29 | 2020-12-25 | 鹤壁市正华有色金属有限公司 | Deplating solution and deplating process for bright tin automobile parts by taking red copper or brass as base material |
| CN115491682B (en) * | 2022-09-19 | 2024-02-02 | 厦门竞高电镀有限公司 | Environment-friendly normal-temperature tin stripping liquid and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4356069A (en) * | 1981-03-09 | 1982-10-26 | Ross Cunningham | Stripping composition and method for preparing and using same |
| US4755265A (en) * | 1985-06-28 | 1988-07-05 | Union Oil Company Of California | Processes for the deposition or removal of metals |
| JP2003277999A (en) * | 2001-10-11 | 2003-10-02 | Shipley Co Llc | Stripping solution |
| CN1869285A (en) * | 2005-05-27 | 2006-11-29 | 佛山市顺德区汉达精密电子科技有限公司 | Decoating liquid |
| CN1896313A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区汉达精密电子科技有限公司 | Decoating liquid |
| CN101935864A (en) * | 2010-09-21 | 2011-01-05 | 上海理工大学 | Anode stripping solution for magnesium and magnesium alloy nickel-plating layer and method for stripping coating |
| CN101962776A (en) * | 2010-09-01 | 2011-02-02 | 济南德锡科技有限公司 | Solder stripping agent and preparation method thereof |
-
2011
- 2011-11-09 CN CN201110352048.5A patent/CN102383178B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4356069A (en) * | 1981-03-09 | 1982-10-26 | Ross Cunningham | Stripping composition and method for preparing and using same |
| US4755265A (en) * | 1985-06-28 | 1988-07-05 | Union Oil Company Of California | Processes for the deposition or removal of metals |
| JP2003277999A (en) * | 2001-10-11 | 2003-10-02 | Shipley Co Llc | Stripping solution |
| CN1869285A (en) * | 2005-05-27 | 2006-11-29 | 佛山市顺德区汉达精密电子科技有限公司 | Decoating liquid |
| CN1896313A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区汉达精密电子科技有限公司 | Decoating liquid |
| CN101962776A (en) * | 2010-09-01 | 2011-02-02 | 济南德锡科技有限公司 | Solder stripping agent and preparation method thereof |
| CN101935864A (en) * | 2010-09-21 | 2011-01-05 | 上海理工大学 | Anode stripping solution for magnesium and magnesium alloy nickel-plating layer and method for stripping coating |
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| Publication number | Publication date |
|---|---|
| CN102383178A (en) | 2012-03-21 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Stripping solution for vehicle connector electroplated terminal plating Effective date of registration: 20170407 Granted publication date: 20140226 Pledgee: Bank of China Limited by Share Ltd Hebi branch Pledgor: Henan THB Group Co., Ltd. Registration number: 2017990000279 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171221 Granted publication date: 20140226 Pledgee: Bank of China Limited by Share Ltd Hebi branch Pledgor: Henan THB Group Co., Ltd. Registration number: 2017990000279 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Stripping solution for vehicle connector electroplated terminal plating Effective date of registration: 20171221 Granted publication date: 20140226 Pledgee: Bank of China Limited by Share Ltd Hebi branch Pledgor: Henan THB Group Co., Ltd. Registration number: 2017990001207 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190304 Granted publication date: 20140226 Pledgee: Bank of China Limited by Share Ltd Hebi branch Pledgor: Henan THB Group Co., Ltd. Registration number: 2017990001207 |
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Effective date of registration: 20190318 Address after: 458000 Hongqi Bridge West, East Section of Hongqi Street, Shancheng District, Hebi City, Henan Province Patentee after: Hebi Zhenghua Nonferrous Metals Co., Ltd. Address before: 458030 No. 215 Qibin Avenue, Hebi City, Henan Province Patentee before: Henan THB Group Co., Ltd. |