CN102392274A - Low-temperature rapid black nickel water - Google Patents
Low-temperature rapid black nickel water Download PDFInfo
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- CN102392274A CN102392274A CN2011103671589A CN201110367158A CN102392274A CN 102392274 A CN102392274 A CN 102392274A CN 2011103671589 A CN2011103671589 A CN 2011103671589A CN 201110367158 A CN201110367158 A CN 201110367158A CN 102392274 A CN102392274 A CN 102392274A
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Abstract
The invention relates to rapid low-temperature black nickel water for nickel plating and copper plating post-processing. The black nickel water contains components such as zinc salt, nickel salt, thiocyanate, conductive salt, water and the like. The black nickel water is characterized in that the operating temperature is 25-50 DEG C; the operating time is 1-5 min; and pH value is 4.5-5.5. The black nickel water is prepared according to the following steps of: adding 50-70% of water in the raw materials into a stirring device; successively pouring other components; finally adding the rest of the water; and stirring for at least 5 minutes to obtain the finished product. The black nickel water produced in the invention is clear, has stable performance and wide range of temperature and current density, is convenient to operate, and has long service life. As the product can be used at the temperature of 30-40 DEG C, electric energy consumed during heating process is greatly saved; in addition, the heating time is short, thus saving time.
Description
Technical field
The invention belongs to the metal material surface processing technology field, specifically, relate to the black fast nickel water of a kind of low temperature.
Background technology
Black nickel coatings black in color has very strong extinction capability, and some has the industry of particular requirement often to be applied to opticinstrument and photographic equipment etc., and black nickel coatings has higher specific absorption to sun power, can be used for solar heat-collection plate.Recently, decorative applications aspect at home is in rising trend, especially is widely current at aspects such as clock and watch, light fixture, leather gadgets.Black nickel coatings is harder, and wear resistance and solidity to corrosion are relatively poor, and direct black coating nickel on steel part, and the bonding force of coating and matrix is poor, and color can shoal after polishing.Generally be the thin black nickel dam (having only about 2mm) of flash one deck on the bright nickel plating layer, plate post coat or immersion oil again and handle, thereby obtain elegant, peculiar rifle black nickel bright coating.
Black nickel coatings can be by the Ni-Zn alloy electroplating bath, and the Ni-Sn alloy electroplating bath obtains.In the black nickel coatings of Ni-Zn, contain higher nonmetallic phase, like the sulfide of nickel, the mixture of the sulfide of zinc and organism etc.The formation of sulfide; Be because thiocyanate ion reduce on negative electrode and dissociates sulfonium ion, nickel ion, zine ion formation in the plating bath, on negative electrode with the nickel codeposition; As for black is to exist in the coating due to the black nickelous sulfide, perhaps the color that appeared of coating structure itself.From black nickel plating bath, plate black nickel coatings, nickeliferous 40-60%, zinc 20-30%, sulphur 10-15%, organism about 10%.The degradation production of thiocyanate-then is an organic main source in the coating.
CN 101054697A discloses a kind of black nickel plating and electroplating technology thereof, it is characterized in that black nickel plating is made up of following materials based on weight: 1 part in sodium-chlor, 2 parts in zinc sulfate, single nickel salt 4-6 part, ammonium thiocyanide 2-3 part, complexing agent 0.2-0.4 part.By following electro-plating method black coating nickel dam on workpiece: configuration proportion is the black nickel plating that contains 80-150kg in the electroplate liquid of 1000L; Temperature is at 40-50 ℃; Adjust pH hangs carbon plate or nickel plate anode and workpiece negative electrode to be plated, energized at 5.5-6.5; Electric current with 0.1-0.3 ampere/square decimeter is electroplated, and electroplates to get final product after 5-7 minute.Workpiece after the plating carries out wire drawing processing, immersion oil or japanning to be handled.The service temperature of this invention product needs 40-50 ℃, and the running time needs 5-7 minute, needs temperature high, and heat-up time is long, has caused the waste of the energy.
The technology of tradition black coating nickel adds the man-hour temperature and needs 50-70 ℃, is example with 2000 liters of plating baths, and heating is heated to 60 ℃ of 6-8 hour ability of electrically heated rod heating productions that need 10000W from normal temperature.Also to not be incubated heating when not plating at ordinary times.Cause a large amount of energy loss like this, tooling cost increases greatly, and the loss of time is also very big.
Summary of the invention
The present invention is directed to a series of problems that the existing black nickel water that is used for nickel-plated and copper-plated post-treatment exists, proposed a kind of easy to operate, long service life, stable performance, service temperature is low, the black nickel water of quick low temperature that heat-up time is short.
To achieve these goals, the present invention realizes through following technical scheme:
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Can be called complexing agent with the compound that metals ion forms complexing ion.In electroplating solution; Remove the minority electroplate liquid; Do not use like acidic solution plating iron, nickel plating, chromium plating, copper facing and maybe needn't use outside the complexing agent, other most of electroplate liquids,, copper facing silver-plated, gold-plated like basic soln, zinc-plated, zinc-plated, bronze (copper-tin alloy) electroplating etc. all need use complexing agent.Like prussiate, oxyhydroxide, Citrate trianion, pyrophosphate salt, thiosulphate, sulphite etc., in Electroplating Production, be used widely as complexing agent.Black nickel water of the present invention comprises that also massfraction is 1～5% complexing agent; The mixture of a kind of among the preferred terepthaloyl moietie of said complexing agent, Padil, EDTA, the TEA or at least two kinds; The mixture of further preferred Padil and EDTA.The complexing agent that other those skilled in the art can be known also is applicable to the present invention.
As optimal technical scheme, black nickel water of the present invention comprises following component by massfraction:
As optimal technical scheme, black nickel water of the present invention comprises following component by massfraction:
Preferably, black nickel water according to the invention comprises following component by massfraction:
Zinc and nickel are the staples of coating.Preferred zinc chloride of zinc salt according to the invention and/or zinc sulfate; The preferred nickelous chloride of said nickel salt; Said pH value acid regulator is the mixture of a kind of in acetic acid, Hydrocerol A, boric acid, the tartrate or at least two kinds; The mixture of preferred acetic acid, Hydrocerol A, boric acid, further optimization citric acid.The common agents that can realize function of the present invention except that preferred reagent according to the invention all can be used for the present invention.
Preferred ammonium chloride of conducting salt according to the invention and/or sal epsom; Said conducting salt preferred mass mark is that 10～15% ammonium chloride and massfraction are that 20～25% sal epsom is formed.The effect of conducting salt is the normal-temperature operation that realizes product of the present invention.
Thiocyanate-is thiocyanate ion SCN
-The salt that is become, common colourless Rhocya, Sodium Thiocyanate 99, ammonium thiocyanide and the pharaoh's serpents of comprising.Thiocyanate ion reduces on negative electrode and dissociates sulfonium ion, on negative electrode with the nickel codeposition.
Black nickel water according to the invention comprises following component by massfraction:
Preferably, said black nickel water comprises following component by massfraction:
" comprising " of the present invention, mean it except that said component, can also comprise other components, these other components are given said black nickel water different characteristic.In addition, " comprising " of the present invention, can also replace with enclosed " being " or " by ... form ".
The service temperature of black nickel water according to the invention is 25～50 ℃, preferred 30 ℃, therefore belongs to low temperature (normal temperature) operation; Running time is 1～5min, and preferred 1～2min compares traditional technology, and is quicker; The pH value is 4.5～5.5, and preferred pH value is 5.
The preparation of black nickel water according to the invention is undertaken by liquid stirrers, may further comprise the steps: get the raw materials ready by above-mentioned each constituent mass mark; 50～70% water in the raw material is added in the whipping appts; Drop into other components successively; Add remaining water at last; Stirred at least 5 minutes, and got product.Preferred 5～the 20min of said churning time, further preferred 10min.
Compare with the prior art scheme, the present invention has following beneficial effect:
This product is applicable to the black decorative machining after nickel-plated and copper-plated.Through the screening and optimizing of prescription, solving needs temperature high in the processing of traditional black coating nickel, the shortcoming that heat-up time is long.The technology of tradition black coating nickel adds the man-hour temperature and needs 50-70 ℃, is example with 2000 liters of plating baths, and heating is heated to 60 ℃ of 6-8 hour ability of electrically heated rod heating productions that need 10000W from normal temperature.Also to not be incubated heating when not plating at ordinary times.Cause a large amount of energy loss like this, tooling cost increases greatly, and the loss of time is also very big.This product can be 30-40 ℃ of use, the electric energy that has consumed when having saved heating greatly, and also heat-up time is short, saves time.With 2000 liters of plating baths is example, and heating is heated to 30-40 ℃ from normal temperature needs the electrically heated rod heating of 10000W just can produce in 0.5-1 hour.In south during summer, but need not heat just processing, improve workman's work situation.
Product of the present invention is electroplated on bright nickel bottom, can produce the black nickel coatings of light; Short period of time electroplates on green grass or young crops, red metal bottom, produces durable antique effect through polishing again; Black nickel clarification of water, stable performance; Temperature, current density range are wide; Easy to operate, long service life.
Down in the face of further explain of the present invention.But following instance only is a simple and easy example of the present invention, does not represent or limits rights protection scope of the present invention, and interest field of the present invention is as the criterion with claims.
Embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical case of the present invention but non-restrictive example is following:
Embodiment one
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment two
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment three
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment four
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment five
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment six
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment seven
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Embodiment eight
A kind of quick low temperature is deceived nickel water, comprises following component by massfraction:
Applicant's statement; The person of ordinary skill in the field is on the basis of the foregoing description, and is with the concrete content point value of the foregoing description component, combined with the technical scheme of summary of the invention part; Thereby the new numerical range that produces; Also be one of record scope of the present invention, the application is no longer enumerated these numerical ranges for making specification sheets simple and clear.
The service temperature of black nickel water according to the invention is 25～50 ℃, preferred 30 ℃; Running time is 1～5min, preferred 1～2min; The pH value is 4.5～5.5, and preferred pH value is 5.
The operating parameters of product of the present invention is compared with traditional technology:
The technology of tradition black coating nickel adds the man-hour temperature and needs 50-70 ℃, is example with 2000 liters of plating baths, and heating is heated to 60 ℃ of 6-8 hour ability of electrically heated rod heating productions that need 10000W from normal temperature.Also to not be incubated heating when not plating at ordinary times.Cause a large amount of energy loss like this, tooling cost increases greatly, and the loss of time is also very big.This product can be 30-40 ℃ of use, the electric energy that has consumed when having saved heating greatly, and also heat-up time is short, saves time.With 2000 liters of plating baths is example, and heating is heated to 30-40 ℃ from normal temperature needs the electrically heated rod heating of 10000W just can produce in 0.5-1 hour.
The preparation of black nickel water according to the invention is undertaken by liquid stirrers, may further comprise the steps: get the raw materials ready by above-mentioned each constituent mass mark; 50～70% water in the raw material is added in the whipping appts; Drop into other components successively; Add remaining water at last; Stirred at least 5 minutes, and got product.Preferred 5～the 20min of said churning time, further preferred 10min.
Applicant's statement, the present invention explains preparation process of the present invention through the foregoing description, but the present invention is not limited to above-mentioned preparation process, does not mean that promptly the present invention must rely on above-mentioned preparation process and could implement.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of raw material that the present invention selects for use and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (8)
1. the black nickel water of quick low temperature is characterized in that, comprises following component by massfraction:
2. black nickel water as claimed in claim 1 is characterized in that, comprises that also massfraction is 1～5% complexing agent; The mixture of a kind of among the preferred terepthaloyl moietie of said complexing agent, Padil, EDTA, the TEA or at least two kinds; The mixture of further preferred Padil and EDTA.
3. according to claim 1 or claim 2 black nickel water is characterized in that, comprises following component by massfraction:
4. like the described black nickel water of one of claim 1-3, it is characterized in that, comprise following component by massfraction:
Or said black nickel water comprises following component by massfraction:
5. like the described black nickel water of one of claim 1-4, it is characterized in that preferred zinc chloride of said zinc salt and/or zinc sulfate; The preferred nickelous chloride of said nickel salt; Said pH value acid regulator is the mixture of a kind of in acetic acid, Hydrocerol A, boric acid, the tartrate or at least two kinds; The mixture of preferred acetic acid, Hydrocerol A, boric acid, further optimization citric acid.
6. like the described black nickel water of one of claim 1-5, it is characterized in that preferred ammonium chloride of said conducting salt and/or sal epsom; Said conducting salt preferred mass mark is that 10～15% ammonium chloride and massfraction are that 20～25% sal epsom is formed.
7. like the described black nickel water of one of claim 1-6, it is characterized in that, comprise following component by massfraction:
Or said black nickel water comprises following component by massfraction:
8. like the described black nickel water of one of claim 1-7, it is characterized in that the service temperature of said black nickel water is 25～50 ℃, preferred 30 ℃; Running time is 1～5min, preferred 1～2min; The pH value is 4.5～5.5, and preferred pH value is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110367158.9A CN102392274B (en) | 2011-11-18 | 2011-11-18 | Low-temperature rapid black nickel water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110367158.9A CN102392274B (en) | 2011-11-18 | 2011-11-18 | Low-temperature rapid black nickel water |
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| CN102392274A true CN102392274A (en) | 2012-03-28 |
| CN102392274B CN102392274B (en) | 2014-11-26 |
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| CN201110367158.9A Expired - Fee Related CN102392274B (en) | 2011-11-18 | 2011-11-18 | Low-temperature rapid black nickel water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630853A (en) * | 2013-11-12 | 2015-05-20 | 北京中科三环高技术股份有限公司 | Method for electroplating black nickel on neodymium-iron-boron magnet |
| CN108699714A (en) * | 2016-01-29 | 2018-10-23 | 住友金属矿山株式会社 | The manufacturing method of melanism plating solution and conductive board |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054697A (en) * | 2007-02-12 | 2007-10-17 | 伟业重工(安徽)有限公司 | Plating black nickel and plating technique thereof |
| CN101550573A (en) * | 2009-04-17 | 2009-10-07 | 昆明理工大学 | Zinc-nickel alloy electrolyte |
-
2011
- 2011-11-18 CN CN201110367158.9A patent/CN102392274B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054697A (en) * | 2007-02-12 | 2007-10-17 | 伟业重工(安徽)有限公司 | Plating black nickel and plating technique thereof |
| CN101550573A (en) * | 2009-04-17 | 2009-10-07 | 昆明理工大学 | Zinc-nickel alloy electrolyte |
Non-Patent Citations (1)
| Title |
|---|
| 邹坚: "电镀黑镍合金工艺的进展", 《电镀与精饰》, vol. 12, no. 6, 30 November 1990 (1990-11-30), pages 18 - 20 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630853A (en) * | 2013-11-12 | 2015-05-20 | 北京中科三环高技术股份有限公司 | Method for electroplating black nickel on neodymium-iron-boron magnet |
| CN104630853B (en) * | 2013-11-12 | 2018-07-27 | 北京中科三环高技术股份有限公司 | A method of in neodymium iron boron magnetic body black nickel plating |
| CN108699714A (en) * | 2016-01-29 | 2018-10-23 | 住友金属矿山株式会社 | The manufacturing method of melanism plating solution and conductive board |
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| CN102392274B (en) | 2014-11-26 |
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Effective date of registration: 20170405 Address after: 523755 Guangdong city of Dongguan Province Huang Town board Hubei five Street No. nine Patentee after: Dongguan Bao Zhong Industrial Development Co.,Ltd. Address before: 401 No. 523755 Guangdong city of Dongguan Province Huang Huang Jiang Town Road Patentee before: DONGGUAN DONGHUI TRADE Co.,Ltd. |
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Granted publication date: 20141126 Termination date: 20211118 |