CN103628122A - Coppered wire stripping and hanging process - Google Patents
Coppered wire stripping and hanging process Download PDFInfo
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- CN103628122A CN103628122A CN201210299824.4A CN201210299824A CN103628122A CN 103628122 A CN103628122 A CN 103628122A CN 201210299824 A CN201210299824 A CN 201210299824A CN 103628122 A CN103628122 A CN 103628122A
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- hanging
- stripping
- hanger
- wire stripping
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Abstract
The invention discloses a coppered wire stripping and hanging process. According to the coppered wire stripping and hanging process, a to-be-treated copperized hanger is placed in an electrolytic tank filled with an electrolytic solution, and a metallic copper plating on the surface of the copperized hanger is removed by using a deplating manner. The process comprises the following steps: (1) stripping and hanging pretreatment: a step of rinsing and drying the to-be-treated copperized hanger; (2) stripping and hanging: a step of immersing the to-be-treated copperized hanger in the electrolytic solution and removing the copper plating on the surface of the copperized hanger through reverse electrolytic action of current under the conditions of 0-10 V direct current stable-voltage electricity and a temperature of 25 to 35 DEG C; and (3) rinsing and drying of the copperized hanger having undergone stripping and hanging. The process provided by the invention is simple and environment friendly and has good stability and reliability. In particular, the electrolyte used in the invention is beneficial for removal of the copper plating on the surface of the copperized hanger without damage to the copperized hanger after copper stripping, so production cost is saved.
Description
Technical field
The present invention relates to coppered wire stripping and hanging technical field, a kind of coppered wire stripping and hanging technique of non-mechanical means is specifically provided.
Background technology
In PCB makes electroplating technology, due to be PCB is hung on to electrolyzer fly the enterprising electroplating of target hanger, thereby fly also can plated with copper on target hanger.Existing technique is the method that adopts nitric acid chemical stripping and hanging copper layer, being about to hanger immerses in salpeter solution, the copper on hanger surface can be corroded by nitric acid and divest, but this method can be carried out certain corrosion to the hanger itself after stripping copper, and this method has also consumed a large amount of salpeter solutions, severe contamination Working environment and operator healthy, increased that waste gas reclaims and the expense of off gas treatment.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of coppered wire stripping and hanging technique, this technique is simple, environmental protection, and efficiency is high, good reliability, is of value to the removal realizing metallic copper coating on copper facing suspension member surface.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of coppered wire stripping and hanging technique, described coppered wire stripping and hanging technique is that pending copper facing suspension member is placed in to the electrolyzer that electrolytic solution is housed, and adopts anti-plating mode to remove the lip-deep metallic copper coating of copper facing suspension member; Described coppered wire stripping and hanging technique includes following steps:
(1) stripping and hanging pre-treatment
Pending copper facing suspension member is washed, dried;
(2) stripping and hanging is processed
Pending copper facing suspension member is submerged in electrolytic solution, and under 0-10 volt DC voltage stabilizing electricity and 25-35 ℃ of temperature condition, utilizes the effect of electric current back-electrolysis that the lip-deep copper coating of copper facing suspension member is divested;
(3) the copper facing suspension member after stripping and hanging processing is washed again, dried.
As a further improvement on the present invention, described electrolytic solution is mixed by phosphoric acid, cupric pyrophosphate, tartrate, citric acid and water.
As a further improvement on the present invention, by weight, the formula of described electrolytic solution is: phosphoric acid 25wt%～35wt%; Cupric pyrophosphate 18wt%～22wt%; Tartrate 8wt%～12wt%; The water of citric acid 4wt%～6wt% and surplus.
As a further improvement on the present invention, the pH value of described electrolytic solution is 6-7.
The invention has the beneficial effects as follows: coppered wire stripping and hanging technique of the present invention is simple, environmental protection, stability and good reliability.Especially electrolytic solution of the present invention had both been of value to the removal realizing metallic copper coating on copper facing suspension member surface, can the copper-plating hanger itself after stripping copper not damaged again, made equipment obtain long-term, stable use, had saved production cost.
Embodiment
Below the embodiment of a kind of coppered wire stripping and hanging technique of the present invention is elaborated.
A kind of coppered wire stripping and hanging technique of the present invention, described coppered wire stripping and hanging technique is that pending copper facing suspension member is placed in to the electrolyzer that electrolytic solution is housed, and adopts anti-plating mode to remove the lip-deep metallic copper coating of copper facing suspension member; Described coppered wire stripping and hanging technique includes following steps:
(1) stripping and hanging pre-treatment
Pending copper facing suspension member is washed, dried;
(2) stripping and hanging is processed
Pending copper facing suspension member is submerged in electrolytic solution, and under 0-10 volt DC voltage stabilizing electricity and 25-35 ℃ of temperature condition, utilizes the effect of electric current back-electrolysis that the lip-deep copper coating of copper facing suspension member is divested;
(3) the copper facing suspension member after stripping and hanging processing is washed again, dried.
In the present embodiment, described electrolytic solution is mixed by phosphoric acid, cupric pyrophosphate, tartrate, citric acid and water.
By weight, the formula of described electrolytic solution is: phosphoric acid 25wt%～35wt%; Cupric pyrophosphate 18wt%～22wt%; Tartrate 8wt%～12wt%; The water of citric acid 4wt%～6wt% and surplus.Electrolytic solution is when mixing, and the raw material that weight proportion is little is first thrown in.
In the present embodiment, the pH value of described electrolytic solution is 6-7.
Separately in the present embodiment, the thickness of copper coating is directly proportional to strength of current, and when copper coating thickness is 30 microns, strength of current is 600mA, can in 12min, the lip-deep copper coating of copper facing suspension member be divested complete.
Claims (4)
1. a coppered wire stripping and hanging technique, described coppered wire stripping and hanging technique is that pending copper facing suspension member is placed in to the electrolyzer that electrolytic solution is housed, and adopts anti-plating mode to remove the lip-deep metallic copper coating of copper facing suspension member; It is characterized in that: described coppered wire stripping and hanging technique includes following steps:
(1) stripping and hanging pre-treatment
Pending copper facing suspension member is washed, dried;
(2) stripping and hanging is processed
Pending copper facing suspension member is submerged in electrolytic solution, and under 0-10 volt DC voltage stabilizing electricity and 25-35 ℃ of temperature condition, utilizes the effect of electric current back-electrolysis that the lip-deep copper coating of copper facing suspension member is divested;
(3) the copper facing suspension member after stripping and hanging processing is washed again, dried.
2. coppered wire stripping and hanging technique according to claim 1, is characterized in that: described electrolytic solution is mixed by phosphoric acid, cupric pyrophosphate, tartrate, citric acid and water.
3. coppered wire stripping and hanging technique according to claim 1 and 2, is characterized in that: by weight, the formula of described electrolytic solution is: phosphoric acid 25wt%～35wt%; Cupric pyrophosphate 18wt%～22wt%; Tartrate 8wt%～12wt%; The water of citric acid 4wt%～6wt% and surplus.
4. coppered wire stripping and hanging technique according to claim 3, is characterized in that: the pH value of described electrolytic solution is 6-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299824.4A CN103628122A (en) | 2012-08-22 | 2012-08-22 | Coppered wire stripping and hanging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299824.4A CN103628122A (en) | 2012-08-22 | 2012-08-22 | Coppered wire stripping and hanging process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103628122A true CN103628122A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210299824.4A Pending CN103628122A (en) | 2012-08-22 | 2012-08-22 | Coppered wire stripping and hanging process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103628122A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136988A (en) * | 2018-08-09 | 2019-01-04 | 昆山雅鑫化工有限公司 | A kind of method of circuit board recycling tin |
| CN110181138A (en) * | 2019-05-22 | 2019-08-30 | 中国科学院合肥物质科学研究院 | The welding procedure of superconductive cable and boxlike copper sleeve in large high-temperature superconductive current lead |
| CN111088519A (en) * | 2019-12-27 | 2020-05-01 | 唐山国芯晶源电子有限公司 | Electrolytic equipment for cleaning silver plating and chromium plating clamp and electrolytic cleaning method |
| CN112725875A (en) * | 2020-12-29 | 2021-04-30 | 江西超洋科技有限公司 | VCP electroplating hanger stripping method |
| CN115106330A (en) * | 2022-06-27 | 2022-09-27 | 湖北金禄科技有限公司 | Stripping and hanging groove for vertical continuous electroplating of circuit board and cleaning method thereof |
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| 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 |
| CN101096769A (en) * | 2006-06-26 | 2008-01-02 | 比亚迪股份有限公司 | Electroplating method |
| CN101275255A (en) * | 2007-12-20 | 2008-10-01 | 广州市二轻工业科学技术研究所 | Maintenance method for alkaline non-cyanide plating copper |
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2012
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Patent Citations (3)
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| CN101096769A (en) * | 2006-06-26 | 2008-01-02 | 比亚迪股份有限公司 | Electroplating method |
| 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 |
| CN101275255A (en) * | 2007-12-20 | 2008-10-01 | 广州市二轻工业科学技术研究所 | Maintenance method for alkaline non-cyanide plating copper |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136988A (en) * | 2018-08-09 | 2019-01-04 | 昆山雅鑫化工有限公司 | A kind of method of circuit board recycling tin |
| CN110181138A (en) * | 2019-05-22 | 2019-08-30 | 中国科学院合肥物质科学研究院 | The welding procedure of superconductive cable and boxlike copper sleeve in large high-temperature superconductive current lead |
| CN110181138B (en) * | 2019-05-22 | 2021-06-15 | 中国科学院合肥物质科学研究院 | Welding process of superconducting cable and box-type copper joint in large-scale high-temperature superconducting current lead |
| CN111088519A (en) * | 2019-12-27 | 2020-05-01 | 唐山国芯晶源电子有限公司 | Electrolytic equipment for cleaning silver plating and chromium plating clamp and electrolytic cleaning method |
| CN111088519B (en) * | 2019-12-27 | 2023-12-29 | 唐山国芯晶源电子有限公司 | Electrolysis equipment and electrolysis cleaning method for cleaning silver-plated chromium-plated clamp |
| CN112725875A (en) * | 2020-12-29 | 2021-04-30 | 江西超洋科技有限公司 | VCP electroplating hanger stripping method |
| CN115106330A (en) * | 2022-06-27 | 2022-09-27 | 湖北金禄科技有限公司 | Stripping and hanging groove for vertical continuous electroplating of circuit board and cleaning method thereof |
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Application publication date: 20140312 |