CN103160832A - Stripping solution for chemical nickel-plated coating of cast aluminum piece - Google Patents
Stripping solution for chemical nickel-plated coating of cast aluminum piece Download PDFInfo
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- CN103160832A CN103160832A CN2013101232660A CN201310123266A CN103160832A CN 103160832 A CN103160832 A CN 103160832A CN 2013101232660 A CN2013101232660 A CN 2013101232660A CN 201310123266 A CN201310123266 A CN 201310123266A CN 103160832 A CN103160832 A CN 103160832A
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Abstract
The invention provides a stripping solution for the chemical nickel-plated coating of a cast aluminum piece. The stripping solution contains nitric acid, sodium 3-nitrobenzene sulfonate, nickel powder, pure water, hydrofluoric acid and sodium chloride. The stripping solution provided by the invention is capable of realizing secondary utilization of unaccepted materials generated in the chemical nickel-plating production process; therefore, the production process level is greatly improved; and the stripping solution is simple in operation, easy for control, low in cost and the like.
Description
Technical field
The present invention relates to the aluminum process field, more particularly, relate to a kind of strip solution and strip method thereof of aluminum casting chemical nickel plating coating
Background technology
Aluminum process has that physical strength is high, density is little, heat-conductivity conducting is good, good toughness, easy characteristics such as processing, thereby at industrial circle, the field such as aerospace, national defense industry particularly, so that in daily life, application is more widely arranged.
The cast aluminium surface coverage has the oxide film of one deck densification, and it can be kept apart cast aluminium and surrounding environment, avoids oxidized.But this layer oxide film is vulnerable to the corrosion of strong acid and highly basic, and cast aluminium also produces intergranular corrosion simultaneously, and its surface hardness is reduced, and be not wear-resisting.Thereby corrosion becomes affects one of greatest problem that aluminum casting is widely used.
In order to improve the aluminum casting surface property, improve its erosion resistance, simple effective method plates one deck nickel at the cast aluminium workpiece surface exactly at present, namely makes a kind of nickel salt that is in liquid state change metallic forms into and is attached to the cast aluminium workpiece surface.
In China's promotion and application for many years, it is more and more ripe that this technology becomes along with chemical nickel plating, uses also more and more extensively, can say that chemical nickel plating has entered into suitable stage of maturation.The aluminum casting chemical nickel plating develops on the basis of having summed up other basal body chemical plating nickel comes.The aluminum casting chemical nickel plating is not used extraneous electricity, and the redoxomorphism deposition one deck nickel on the aluminum casting surface by itself adopts this mode can improve erosion resistance and the wear resistance of aluminum casting, increases surperficial gloss and attractive in appearance.But in treating processes, the part unacceptable product can appear, cause product cost to raise, can again utilize for making unacceptable product, need to carry out strip to the substandard product surface that occurs in nickel process and process, and then carry out chemical nickel plating, reach the purpose of second stage employ.And many, particularly all the more so for the highly corrosion resistant chemical Ni-plating layer than electroless nickel layer strip difficulty of the strip of chemical Ni-plating layer, the unacceptable product that occurs in aluminum casting chemical nickel plating production process is in the past only scrapped, thereby condemnation factor is also high.
Traditional aluminum casting chemical nickel plating coating strip method and the strip solution of use, the following defective of ubiquity: 1, base material is had injury, use traditional strip method, sand holes and corrosion phenomenon can appear in substrate surface; 2, complex process, the operating time is long; 3, the strip cost is high.
Summary of the invention
The deficiency that occurs for the strip solution of above-mentioned traditional aluminum casting chemical nickel plating coating strip method and use, the invention provides a kind of aluminum casting chemical nickel plating coating strip solution, base material is had the defective of damage to solve traditional chemical nickel plating coating strip solution.
On the other hand, the present invention is based on above-mentioned strip solution a kind of strip method is provided, prior art processes is complicated to solve, the operating time is long, the problem that the strip cost is high.
Based on first aspect of the present invention, a kind of aluminum casting chemical nickel plating coating strip solution is provided, this strip solution comprises: nitric acid, m-nitrobenzene sodium sulfonate, nickel powder, pure water, hydrofluoric acid and sodium-chlor.
Further, with 1 liter of solution measures, described nitric acid content is that 570-600ml/L, described fluohydric acid content are 80-100ml/L, all the other are pure water; Described nickel powder content is that 2-3g/L, described sodium chloride content are that 10-15g/L, described m-nitrobenzene sodium sulfonate content are 10-15g/L.
Based on another aspect of the present invention, a kind of aluminum casting chemical nickel plating coating strip method also is provided, this strip method comprises:
A, strip are processed, and electroless plating nickel product are put into the aluminum casting chemical nickel plating coating strip solution of making, and carry out strip and process, to remove the coating of aluminum casting product surface;
B, washing are processed, and the base material after strip is put into the pure water groove clean one to three time;
C, drying and processing are dried the aluminum casting product after processing through washing at a certain temperature.
After coating reaction on this strip solution and aluminum casting base material, will no longer continue reaction with base material, can reach like this effect of protection cast member base material.
Further, the described step a strip time is 30-60 second.
Further, in described step a strip treating processes, the temperature of strip solution is controlled at 60 ℃ to 80 ℃.
Compared with prior art, the strip solution of a kind of aluminum casting chemical nickel plating coating of the present invention and strip method thereof have reached following effect:
1) a kind of aluminum casting chemical nickel plating coating strip solution of the present invention and strip method thereof, manufacturing process is simple, easily controls the strip successful.
2) a kind of aluminum casting chemical nickel plating coating strip solution of the present invention and strip method thereof after carrying out the strip processing, can reach the second stage employ to unacceptable product, have reduced manufacturing cost, have improved production efficiency and state of the art.
Description of drawings
Fig. 1 is strip processing flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, but not as a limitation of the invention.As shown in Figure 1, first in step S1, strip solution being carried out strip processes.Specifically, first will include nitric acid, m-nitrobenzene sodium sulfonate, nickel powder, pure water, hydrofluoric acid, and the strip solution that sodium-chlor forms mixes, be mixed with strip solution.Wherein, hydrofluoric acid and nitric acid are as oxygenant, and sodium-chlor and nickel powder are as inhibiter.The present invention there is no particular requirement to concentration and the PH of above-mentioned raw materials.Preferably, in the present embodiment, the nitric acid in strip solution is that 600ml/L, pure water are that 300ml/L, hydrofluoric acid are that 100ml/L, sodium chloride content are 10g/L, and m-nitrobenzene sodium sulfonate content is 15g/L, and described nickel powder content is 2g/L.When strip is processed, at first electroless plating nickel product is put into this strip solution of making, and the temperature of strip solution is controlled between 60 ℃ to 80 ℃, carry out strip and process, keep certain hour, to remove the coating of aluminum casting product surface.
Then, the product after processing through strip in step S2 is put into the pure water groove and is cleaned one to three time, and the spot of removing product surface is remaining.
After electroless plating nickel product is washed, then carry out drying and processing in step S3, and then remove the moisture of product surface.Completed thus the strip process of this electroless plating nickel product.
Use the strip solution of the present embodiment can reach second stage employ to the unacceptable product that occurs in the chemical nickel plating production process, greatly improved production efficiency and state of the art, simple to operate, easy control, cost are low.
With adopt identical treatment process with above-described embodiment, just value in the ratio range of strip solution provided by the invention, also can reach identical technique effect.Such as, the nitric acid in strip solution is that 570ml/L, pure water are that 350ml/L, hydrofluoric acid are that 80ml/L, sodium chloride content are 12g/L, and m-nitrobenzene sodium sulfonate content is 12g/L, and described nickel powder content is 3g/L.Also can select the strip solution of such mixing match: nitric acid is that 580ml/L, pure water are that 330ml/L, hydrofluoric acid are that 90ml/L, sodium chloride content are 15g/L, and m-nitrobenzene sodium sulfonate content is 10g/L, and described nickel powder content is 2g/L.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.
Claims (7)
1. an aluminum casting chemical nickel plating coating strip solution, is characterized in that, comprises nitric acid, m-nitrobenzene sodium sulfonate, nickel powder, pure water, hydrofluoric acid and sodium-chlor.
2. strip solution as claimed in claim 1, is characterized in that, described nitric acid content is that 570-600ml/L, described fluohydric acid content are 80-100ml/L, all the other are pure water; Described nickel powder content is that 2-3g/L, described sodium chloride content are that 10-15g/L, described m-nitrobenzene sodium sulfonate content are 10-15g/L.
3. the strip method of an aluminum casting chemical nickel plating coating, it is characterized in that, strip in this strip method is processed and is comprised: electroless plating nickel product is put into the aluminum casting chemical nickel plating coating strip solution as claimed in claim 1 or 2 of making, to remove the coating of aluminum casting product surface.
4. strip method as claimed in claim 3, is characterized in that, the time that described strip is processed is 30-60 second.
5. strip method as described in claim 3 or 4, is characterized in that, the temperature of the strip solution that described strip is processed is controlled at 60 ℃ to 80 ℃.
6. strip method as described in claim 3 or 4, is characterized in that, the method also comprises washing processing and drying and processing.
7. strip method as claimed in claim 6, is characterized in that, it is the product after strip to be put into the pure water groove clean one to three time that described washing is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123266.0A CN103160832B (en) | 2013-04-10 | 2013-04-10 | Stripping solution for chemical nickel-plated coating of cast aluminum piece and stripping method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310123266.0A CN103160832B (en) | 2013-04-10 | 2013-04-10 | Stripping solution for chemical nickel-plated coating of cast aluminum piece and stripping method |
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| CN103160832A true CN103160832A (en) | 2013-06-19 |
| CN103160832B CN103160832B (en) | 2015-06-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131284A (en) * | 2014-07-24 | 2014-11-05 | 浙江凯文磁业有限公司 | Method for removing electroplating nickel on surface of neodymium iron boron permanent magnet material |
| CN105220215A (en) * | 2015-11-04 | 2016-01-06 | 哈尔滨工业大学 | A kind of obstacles in quit of ultraprecise Al and Al-alloy electroless nickel-phosphorus alloy plating layer on surface |
| CN106148963A (en) * | 2016-06-24 | 2016-11-23 | 惠州市博美环保新材料有限公司 | A kind of environmental-protecting chemical stripping nickel agent and strip method thereof |
| CN108085684A (en) * | 2017-11-23 | 2018-05-29 | 中国科学院近代物理研究所 | For going the chemical decoating liquid of copper removal surface niobium coating and strip method |
| CN108359989A (en) * | 2018-03-22 | 2018-08-03 | 广州本康环保科技有限公司 | A kind of circuit board nickel-copper alloy layer chemistry strip composition and its strip method |
| CN108517522A (en) * | 2018-03-22 | 2018-09-11 | 广州本康环保科技有限公司 | A kind of PBC/Sn/NiCu structural circuits plate nickel-copper alloy layer chemistry strip composition and its strip method |
| CN111029032A (en) * | 2019-11-18 | 2020-04-17 | 西部超导材料科技股份有限公司 | Method for improving surface quality of NbTi superconducting wire |
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| TW508374B (en) * | 1999-08-27 | 2002-11-01 | Mec Kk | Etching solution for nickel or nickel alloy, and etching method |
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| TW508374B (en) * | 1999-08-27 | 2002-11-01 | Mec Kk | Etching solution for nickel or nickel alloy, and etching method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131284A (en) * | 2014-07-24 | 2014-11-05 | 浙江凯文磁业有限公司 | Method for removing electroplating nickel on surface of neodymium iron boron permanent magnet material |
| CN105220215A (en) * | 2015-11-04 | 2016-01-06 | 哈尔滨工业大学 | A kind of obstacles in quit of ultraprecise Al and Al-alloy electroless nickel-phosphorus alloy plating layer on surface |
| CN105220215B (en) * | 2015-11-04 | 2017-06-16 | 哈尔滨工业大学 | A kind of obstacles in quit of ultraprecise Al and Al-alloy electroless nickel-phosphorus alloy plating layer on surface |
| CN106148963A (en) * | 2016-06-24 | 2016-11-23 | 惠州市博美环保新材料有限公司 | A kind of environmental-protecting chemical stripping nickel agent and strip method thereof |
| CN108085684A (en) * | 2017-11-23 | 2018-05-29 | 中国科学院近代物理研究所 | For going the chemical decoating liquid of copper removal surface niobium coating and strip method |
| CN108085684B (en) * | 2017-11-23 | 2019-10-08 | 中国科学院近代物理研究所 | For going the chemical decoating liquid and strip method of copper removal surface niobium coating |
| CN108359989A (en) * | 2018-03-22 | 2018-08-03 | 广州本康环保科技有限公司 | A kind of circuit board nickel-copper alloy layer chemistry strip composition and its strip method |
| CN108517522A (en) * | 2018-03-22 | 2018-09-11 | 广州本康环保科技有限公司 | A kind of PBC/Sn/NiCu structural circuits plate nickel-copper alloy layer chemistry strip composition and its strip method |
| CN108517522B (en) * | 2018-03-22 | 2019-10-25 | 龙南骏亚精密电路有限公司 | A kind of PCB/Sn/NiCu structural circuit plate nickel-copper alloy layer chemistry strip composition and its strip method |
| CN111029032A (en) * | 2019-11-18 | 2020-04-17 | 西部超导材料科技股份有限公司 | Method for improving surface quality of NbTi superconducting wire |
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| Publication number | Publication date |
|---|---|
| CN103160832B (en) | 2015-06-03 |
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