CN102277600A - Surface treatment method for electroplated copper door - Google Patents
Surface treatment method for electroplated copper door Download PDFInfo
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- CN102277600A CN102277600A CN2011102375041A CN201110237504A CN102277600A CN 102277600 A CN102277600 A CN 102277600A CN 2011102375041 A CN2011102375041 A CN 2011102375041A CN 201110237504 A CN201110237504 A CN 201110237504A CN 102277600 A CN102277600 A CN 102277600A
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Abstract
The invention relates to a surface treatment method for an electroplated copper door. The copper door treated by the conventional electrochemical method has high corrosion resistance, but the conventional electrochemical treatment process is low in accuracy and quality and cannot meet the current high-quality requirement. The surface treatment method for the electroplated copper door, which is provided by the invention, comprises: subjecting a copper door to electrolytic oil removal treatment; washing the copper door subject ted to electrolytic oil removal; subjecting the washed copper door to activation treatment; subjecting the activated copper door to alkali copper treatment; washing the copper door subjected to alkali copper treatment; subjecting the washed copper door to acid copper treatment; washing the copper door to acid copper treatment; subjecting the washed copper door to lance black treatment; washing the copper door subjected to lance black treatment; and subjecting the washed copper door to passivation treatment. The copper door surface treatment process is optimized, the accuracy of the copper door surface treatment process flow is increased and product quality is improved.
Description
Technical field
The present invention relates to a kind of surface-treated method, refer in particular to a kind of electro-coppering door surface-treated method.
Background technology
The surface treatment of existing copper door is divided into chemical surface treatment and electrochemical surface is handled, because of electrochemistry speed fast, the efficient height, adapt to and produce in enormous quantities,---washing---pickling polishing---washing---neutralization---washing---dry and other aftertreatment of painted processing---washing---that and the technical process that its chemical surface treatment and electrochemical surface are handled is roughly the same, and its flow process is that degreasing and rust removal descales.
Existing electrochemical method: the copper anode electrolysis in following solution after routine is cleaned;
Yellow soda ash (Na
2CO
3) be 75g/L;
Ammonium sulfate ((NH
4)
2SO
4) be 25g/L;
Ammonium nitrate (NH
4NO
3Be 10g/L;
The pH value is 6～9, and temperature is a room temperature, and feeding anodic current density is 10A/d m
2, 2 minutes time length.
The copper door of handling through existing electrochemical method has good corrosion resisting property, and still, existing electrochemical treatment technology tolerance range is relatively poor, and quality is not high, is difficult to satisfy high-quality demand now.
Summary of the invention
The present invention is at above-mentioned defective, and the spy provides a kind of technology tolerance range height, and product appearance is effective, can satisfy the needs of high requirement.
For this reason, a kind of electro-coppering door of the present invention surface-treated method, wherein,
Aforesaid method includes Jiang Tongmen and carries out the electrolytic degreasing processing;
Copper door behind electrolytic degreasing is cleaned;
Above-mentioned copper door after cleaning is carried out activation treatment;
Copper door after the above-mentioned activated processing is carried out alkali copper to be handled;
Above-mentioned copper door after alkali copper is handled is cleaned;
Copper door after the above-mentioned cleaning is carried out sour copper to be handled;
Copper door after handling through sour copper is cleaned;
Copper door after the above-mentioned cleaning is carried out the black processing of rifle;
Copper door after rifle is black is cleaned;
Above-mentioned copper door after cleaning is carried out Passivation Treatment.
As optimization, before the above-mentioned activation treatment, after electrolytic degreasing and the cleaning, also include the step of carrying out vitriolization, the copper door after vitriolization is cleaned, above-mentioned sulfuric acid concentration is 3%-5%, the following time length of normal temperature is 8s-12s.So design, the copper door after clear water can being cleaned is done once preliminary pickling, the copper door is made preliminary cleaning, with carry out of convenient back to operation.
As optimization, it is the aqueous solution that Jiang Tongmen puts into the yellow soda ash of the sodium phosphate of being furnished with 25g/L-30g/L and 10g/L-20g/L that above-mentioned electrolytic degreasing is handled, and feeding the cathodic electricity mobility is 3A/dm
2, the time length is 28s-32s.So design, greasy dirt, the stripping electrode surface of eliminating product surface are for later stage technology is prepared.
As optimization, above-mentioned activation treatment is that the copper door after cleaning is put into the sodium cyanide solution of being furnished with 5%-15%, and the time length is 55s-65s.
As optimization, it is that the copper door after the activated processing is positioned in the soluble tartrate sodium water solution of the yellow soda ash of sodium cyanide, 9.5g/L-10.5g/L of the cuprous cyanide of being furnished with 13g/L-23g/L, 6.65g/L-7.35g/L and 33.25g/L-36.75g/L that above-mentioned alkali copper is handled, it is 30 ℃-35 ℃ that temperature is set, and feeding density is 0.5A*dm
2Electric current.
As optimization, it is the aqueous solution that the copper door after cleaning is placed the chlorion of the sulfuric acid of being furnished with 66.5g/L-73.5g/L and 76mg/L-84mg/L that above-mentioned sour copper is handled, and the time length is 28Min-32Min.
As optimization, the black processing of above-mentioned rifle is the aqueous solution that the copper door after cleaning is placed the rifle black additive of being furnished with 120g/L, and it is 50 ℃-60 ℃ that temperature is set, and the time length is 110s-130s.
As optimization, above-mentioned Passivation Treatment is that the copper door after cleaning is placed the chromic anhydride aqueous solution of being furnished with 47.5g/L-52.5g/L, and the following time length of normal temperature is 16s-24s.
As optimization, above-mentioned alkali copper is handled and the processing of sour copper also includes recycling step afterwards, and this recycling step is that the solute in the aqueous solution is reclaimed.
The invention has the beneficial effects as follows, optimize copper door process of surface treatment flow process, improve the tolerance range of copper door process of surface treatment flow process, improve the quality of products, simultaneously, the present invention has high processing efficient and lower energy consumption with respect to existing electrochemical treatment, to a certain extent improve Working environment.
Description of drawings
Fig. 1 is the process flow sheet of embodiment of the present invention one;
Fig. 2 is the process flow sheet of embodiment of the present invention two.
Embodiment
Embodiment one: a kind of electro-coppering door of the present invention surface-treated method, wherein,
Aforesaid method includes Jiang Tongmen and carries out the electrolytic degreasing processing;
Copper door behind electrolytic degreasing is cleaned;
Above-mentioned copper door after cleaning is carried out activation treatment;
Copper door after the above-mentioned activated processing is carried out alkali copper to be handled;
Above-mentioned copper door after alkali copper is handled is cleaned;
Copper door after the above-mentioned cleaning is carried out sour copper to be handled;
Copper door after handling through sour copper is cleaned;
Copper door after the above-mentioned cleaning is carried out the black processing of rifle;
Copper door after rifle is black is cleaned;
Above-mentioned copper door after cleaning is carried out Passivation Treatment.
It is the aqueous solution that Jiang Tongmen puts into the yellow soda ash of the sodium phosphate of being furnished with 25g/L-30g/L and 10g/L-20g/L that above-mentioned electrolytic degreasing is handled, and feeding the cathodic electricity mobility is 3A/dm
2, the time length is 28s-32s.Its present embodiment is furnished with the aqueous solution of sodium phosphate 27g/L and yellow soda ash 17g/L, is 3A/dm at the cathodic electricity mobility
2Time length is 28s.
Connect procedure, the copper door of finishing the electrolytic degreasing processing is carried out twice independently to be cleaned, promptly, copper door after electrolytic degreasing is handled is cleaned one time with clear water, repeated washing one time more then, after guaranteeing the copper door is cleaned, can not influence next procedure because of remaining impurities or debris on the copper door.
Connect procedure, before the above-mentioned activation treatment, after electrolytic degreasing and the cleaning, also include the step of carrying out vitriolization, the copper door after vitriolization is cleaned, above-mentioned sulfuric acid concentration is 3%-5%, and the following time length of normal temperature is 8s-12s.The vitriolic concentration that present embodiment is selected for use is 4%, and the following time length of normal temperature is 10s, and above-mentioned normal temperature temperature is 20 ℃-37 ℃.Present embodiment cleans identical with above-mentioned cleaning, carries out twice and independently cleans.
Connect procedure, above-mentioned activation treatment is that the copper door after cleaning is put into the sodium cyanide solution of being furnished with 5%-15%, and the time length is 55s-65s.This procedure is to adopt to be furnished with in 8% the sodium cyanide solution, and its time length is 58s.
Connect procedure, it is that the copper door after the activated processing is positioned in the soluble tartrate sodium water solution of the yellow soda ash of sodium cyanide, 9.5g/L-10.5g/L of the cuprous cyanide of being furnished with 13g/L-23g/L, 6.65g/L-7.35g/L and 33.25g/L-36.75g/L that above-mentioned alkali copper is handled, it is 30 ℃-35 ℃ that temperature is set, and feeding density is 0.5A*dm
2Electric current.This procedure is to adopt to be furnished with the cuprous cyanide of 16g/L, the sodium cyanide of 6.85g/L, the yellow soda ash of 9.85g/L and the soluble tartrate sodium water solution of 34g/L, and its temperature is arranged on 32 ℃, and feeding density is 0.5A*dm
2Electric current and continue 28Min-32Min, its concrete time is 30Min.
Connect procedure, the copper door of finishing the processing of alkali copper is carried out three roads independently clean.
Connect procedure, it is the aqueous solution that the copper door after cleaning is placed the chlorion of the sulfuric acid of being furnished with 68g/L and 78mg/L that above-mentioned sour copper is handled, and the time length is 30Min.
Connect procedure, the copper door of finishing sour copper processing is carried out three roads independently clean.
Connect procedure, the black processing of described rifle is the aqueous solution that the copper door after cleaning is placed the rifle black additive of being furnished with 120g/L, and it is 55 ℃ that temperature is set, and the time length is 115s.
Connect procedure, the copper door of finishing the black processing of rifle is carried out twice independently clean.
Connect procedure, described Passivation Treatment is that the copper door after cleaning is placed the chromic anhydride aqueous solution of being furnished with 48g/L, and the following time length of normal temperature is 18s.
After Passivation Treatment, can again product be carried out drying treatment.
Embodiment two: present embodiment and embodiment one are basic identical, and different is:
It is the aqueous solution that Jiang Tongmen puts into the yellow soda ash of the sodium phosphate of being furnished with 29g/L and 15g/L that above-mentioned electrolytic degreasing is handled, and feeding the cathodic electricity mobility is 3A/dm
2, the time length is 30s.
Connect procedure, the copper door of finishing the electrolytic degreasing processing is carried out twice independently to be cleaned, promptly, copper door after electrolytic degreasing is handled is cleaned one time with clear water, repeated washing one time more then, after guaranteeing the copper door is cleaned, can not influence next procedure because of remaining impurities or debris on the copper door.
Connect procedure, before the above-mentioned activation treatment, after electrolytic degreasing and the cleaning, also include the step of carrying out vitriolization, the copper door after vitriolization is cleaned, above-mentioned sulfuric acid concentration is 5%, and the following time length of normal temperature is 11s.Above-mentioned normal temperature temperature is 20 ℃-37 ℃.Present embodiment cleans identical with above-mentioned cleaning, carries out twice and independently cleans.
Connect procedure, above-mentioned activation treatment is the copper door after cleaning to be put into be furnished with 10% sodium cyanide solution, and the time length is 60s.
Connect procedure, it is that the copper door after the activated processing is positioned in the soluble tartrate sodium water solution of the yellow soda ash of sodium cyanide, 10g/L of the cuprous cyanide of being furnished with 18g/L, 7g/L and 35g/L that above-mentioned alkali copper is handled, it is 35 ℃ that temperature is set, and feeding density is 0.5A*dm
2Electric current and continue 31Min.
Connect procedure, the copper door of finishing the processing of alkali copper is carried out three roads independently clean.
Connect procedure, it is the aqueous solution that the copper door after cleaning is placed the chlorion of the sulfuric acid of being furnished with 70g/L and 80mg/L that above-mentioned sour copper is handled, and the time length is 30Min.
Connect procedure, the copper door of finishing sour copper processing is carried out three roads independently clean.
Connect procedure, the black processing of described rifle is the aqueous solution that the copper door after cleaning is placed the rifle black additive of being furnished with 120g/L, and it is 58 ℃ that temperature is set, and the time length is 120s.
Connect procedure, the copper door of finishing the black processing of rifle is carried out three roads independently clean.
Connect procedure, described Passivation Treatment is that the copper door after cleaning is placed the chromic anhydride aqueous solution of being furnished with 50g/L, and the following time length of normal temperature is 20s.
Described alkali copper is handled and the processing of sour copper also includes recycling step afterwards, and this recycling step is that the solute in the aqueous solution is reclaimed.
Recycling step after above-mentioned alkali copper is handled is that the cuprous cyanide in the aqueous solution, sodium cyanide, yellow soda ash and Seignette salt are reclaimed, in order to reduce cost.
Recycling step after above-mentioned sour copper is handled is that the copper sulfate in the aqueous solution, sulfuric acid and chlorion are reclaimed, in order to reduce cost.Wherein, above-mentioned copper sulfate is sulfuric acid and the reacted product of copper door.
After Passivation Treatment, can again product be carried out drying treatment.
Claims (9)
1. electro-coppering door surface-treated method is characterized in that:
Described method includes Jiang Tongmen and carries out the electrolytic degreasing processing;
Copper door behind electrolytic degreasing is cleaned;
Described copper door after cleaning is carried out activation treatment;
Copper door after the described activated processing is carried out alkali copper to be handled;
Described copper door after alkali copper is handled is cleaned;
Copper door after the described cleaning is carried out sour copper to be handled;
Copper door after handling through sour copper is cleaned;
Copper door after the described cleaning is carried out the black processing of rifle;
Copper door after rifle is black is cleaned;
Described copper door after cleaning is carried out Passivation Treatment.
2. a kind of electro-coppering door surface-treated method according to claim 1, it is characterized in that: before the described activation treatment, after electrolytic degreasing and the cleaning, also include the step of carrying out vitriolization, copper door after vitriolization is cleaned, described sulfuric acid concentration is 3%-5%, and the following time length of normal temperature is 8s-12s.
3. a kind of electro-coppering door surface-treated method according to claim 1 and 2, it is characterized in that: it is the aqueous solution that Jiang Tongmen puts into the yellow soda ash of the sodium phosphate of being furnished with 25g/L-30g/L and 10g/L-20g/L that described electrolytic degreasing is handled, and feeding the cathodic electricity mobility is 3A/dm
2, the time length is 28s-32s.
4. a kind of electro-coppering door surface-treated method according to claim 1 and 2 is characterized in that: described activation treatment is that the copper door after cleaning is put into the sodium cyanide solution of being furnished with 5%-15%, and the time length is 55s-65s.
5. a kind of electro-coppering door surface-treated method according to claim 1 and 2, it is characterized in that: it is that the copper door after the activated processing is positioned in the soluble tartrate sodium water solution of the yellow soda ash of sodium cyanide, 9.5g/L-10.5g/L of the cuprous cyanide of being furnished with 13g/L-23g/L, 6.65g/L-7.35g/L and 33.25g/L-36.75g/L that described alkali copper is handled, it is 30 ℃-35 ℃ that temperature is set, and feeding density is 0.5A*dm
2Electric current.
6. a kind of electro-coppering door surface-treated method according to claim 1 and 2, it is characterized in that: it is the aqueous solution that the copper door after cleaning is placed the chlorion of the sulfuric acid of being furnished with 66.5g/L-73.5g/L and 76mg/L-84mg/L that described sour copper is handled, and the time length is 28Min-32Min.
7. a kind of electro-coppering door surface-treated method according to claim 1 and 2, it is characterized in that: the black processing of described rifle is the aqueous solution that the copper door after cleaning is placed the rifle black additive of being furnished with 120g/L, it is 50 ℃-60 ℃ that temperature is set, and the time length is 110s-130s.
8. a kind of electro-coppering door surface-treated method according to claim 1 and 2 is characterized in that: described Passivation Treatment is that the copper door after cleaning is placed the chromic anhydride aqueous solution of being furnished with 47.5g/L-52.5g/L, and the following time length of normal temperature is 16s-24s.
9. a kind of electro-coppering door surface-treated method according to claim 5 is characterized in that: described alkali copper is handled and the processing of sour copper also includes recycling step afterwards, and this recycling step is that the solute in the aqueous solution is reclaimed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102375041A CN102277600A (en) | 2011-08-18 | 2011-08-18 | Surface treatment method for electroplated copper door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102375041A CN102277600A (en) | 2011-08-18 | 2011-08-18 | Surface treatment method for electroplated copper door |
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| CN102277600A true CN102277600A (en) | 2011-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018949A (en) * | 2015-08-06 | 2015-11-04 | 潘桂枝 | Rust remover suitable for steel precision part and rust removing process of rust remover |
| CN106086889B (en) * | 2016-06-28 | 2018-10-19 | 姑苏源电子（苏州）有限公司 | A kind of selection copper facing electroplating technology |
| CN109852813A (en) * | 2019-01-07 | 2019-06-07 | 贵溪红石金属有限公司 | Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company |
| CN110684969A (en) * | 2019-10-18 | 2020-01-14 | 北京曙光航空电气有限责任公司 | Copper plating method for metal surface |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56139193A (en) * | 1980-12-25 | 1981-10-30 | Kosaku:Kk | Treatment of waste copper plating solution |
| US20050072683A1 (en) * | 2003-04-03 | 2005-04-07 | Ebara Corporation | Copper plating bath and plating method |
-
2011
- 2011-08-18 CN CN2011102375041A patent/CN102277600A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56139193A (en) * | 1980-12-25 | 1981-10-30 | Kosaku:Kk | Treatment of waste copper plating solution |
| US20050072683A1 (en) * | 2003-04-03 | 2005-04-07 | Ebara Corporation | Copper plating bath and plating method |
Non-Patent Citations (4)
| Title |
|---|
| 何生龙等: "枪色电镀", 《电镀与环保》 * |
| 张允诚等: "电镀手册第三版", 《电镀手册》 * |
| 王志军等: "枪黑色电镀工艺的研究和应用", 《材料保护》 * |
| 郑洪林等: "黄铜镀锡工艺改进", 《材料保护》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018949A (en) * | 2015-08-06 | 2015-11-04 | 潘桂枝 | Rust remover suitable for steel precision part and rust removing process of rust remover |
| CN106086889B (en) * | 2016-06-28 | 2018-10-19 | 姑苏源电子（苏州）有限公司 | A kind of selection copper facing electroplating technology |
| CN109852813A (en) * | 2019-01-07 | 2019-06-07 | 贵溪红石金属有限公司 | Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company |
| CN110684969A (en) * | 2019-10-18 | 2020-01-14 | 北京曙光航空电气有限责任公司 | Copper plating method for metal surface |
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Application publication date: 20111214 |