CN104264197A - Neodymium-nickel-tungsten alloy electroplating solution and preparation method thereof - Google Patents
Neodymium-nickel-tungsten alloy electroplating solution and preparation method thereof Download PDFInfo
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- CN104264197A CN104264197A CN201410568322.6A CN201410568322A CN104264197A CN 104264197 A CN104264197 A CN 104264197A CN 201410568322 A CN201410568322 A CN 201410568322A CN 104264197 A CN104264197 A CN 104264197A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
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Abstract
The invention discloses a neodymium-nickel-tungsten alloy electroplating solution and a preparation method thereof. The neodymium-nickel-tungsten alloy electroplating solution comprises 80-160 g/L of nickel sulfate, 15-25 g/L of sodium tungstate, 0.05-1 g/L of neodymium oxide, 10-20 g/L of boric acid, 65-80 g/L of a complexing agent and 4-8 g/L of a brightener. The neodymium-nickel-tungsten alloy electroplating solution generates small damage to the environment, can be stored for a long time after being prepared and has high current efficiency; a prepared coating has no micro-cracks on the surface and is high in corrosion resistance.
Description
Technical field
The present invention relates to electroplating technology field, particularly relate to a kind of neodymium-nickel-tungsten electroplate liquid and preparation method thereof.
Background technology
The laudatory title that rare earth has " industrial VITAMIN ".Nowadays extremely important strategic resource has been become.Rare earth oxide refers to that period of element atom ordinal number is 15 kinds of lanthanide oxides of 57 to 71, and the oxide compound of the scandium similar to lanthanon chemical property (Sc) and neodymium (Y) totally 17 kinds of elements.Rare earth element is obtained in fields such as oil, chemical industry, metallurgy, weaving, pottery, glass, permanent magnet materials and applies widely, and along with the progress of science and technology and the continuous breakthrough of utilisation technology, the value of rare earth oxide is by increasing.
Current field of petroleum machinery corrosion phenomenon is serious, does not also have a kind of process for treating surface of satisfaction to may be used for the surface treatment of petroleum machinery, can possess anticorrosion antiwear and with low cost simultaneously.The scheme that may solve is a tungsten alloy plating, but existing electroplate liquid is comparatively large to environmental hazard, not easily long-term storage; There is surface and have the deficiencies such as tiny crack in obtained coating.
Summary of the invention
In view of this, one aspect of the present invention provides a kind of neodymium-nickel-tungsten electroplate liquid, this neodymium-nickel-tungsten electroplate liquid is little to environmental hazard, after configuration can long-term storage, current efficiency high.
A kind of neodymium-nickel-tungsten electroplate liquid, comprises single nickel salt 80 ~ 160g/L, sodium wolframate 15 ~ 25g/L, Neodymium trioxide 0.05 ~ 1g/L, boric acid 10 ~ 20g/L, complexing agent 65 ~ 80g/L, brightening agent 4 ~ 8g/L.
Preferably, this neodymium-nickel-tungsten electroplate liquid comprises the deionized water of single nickel salt 100g/L, sodium wolframate 20g/L, Neodymium trioxide 0.3g/L, boric acid 16g/L, complexing agent 70g/L, brightening agent 5g/L and surplus.
Preferably, described complexing agent is the mixture of Trisodium Citrate and oxalic acid, and described brightening agent is the mixture of asccharin and formaldehyde.
Preferably, the mass ratio of Trisodium Citrate and oxalic acid is 2:1, and the mass ratio of asccharin and formaldehyde is 8:1.
Preferably, the pH value of described neodymium-nickel-tungsten electroplate liquid is 3.
Preferably, described neodymium-nickel-tungsten electroplate liquid working temperature 60 ~ 70 DEG C.
The present invention provides a kind of method preparing above-mentioned neodymium-nickel-tungsten electroplate liquid on the other hand, and the coating surface adopting the method obtained is non-microcracked, and solidity to corrosion is good.
Prepare a method for above-mentioned neodymium-nickel-tungsten electroplate liquid, comprise the following steps:
(1) complexing agent 10 ~ 25g is joined deionized water for stirring and form solution to dissolving;
(2) in this solution, add sodium wolframate 15 ~ 25g, boric acid 10 ~ 20g, single nickel salt 80 ~ 160g stirring and dissolving makes mixed solution;
(3) in this mixed solution, add Neodymium trioxide 0.05 ~ 1g and brightening agent 4 ~ 8g stirring and dissolving, then the deionized water adding surplus is 1L to cumulative volume, obtains neodymium-nickel-tungsten electroplate liquid.
Preferably, the first acidification of Neodymium trioxide in step (3), then join in mixed solution.
Beneficial effect of the present invention: neodymium of the present invention-nickel-tungsten electroplate liquid comprises single nickel salt 80 ~ 160g/L, sodium wolframate 15 ~ 25g/L, Neodymium trioxide 0.05 ~ 1g/L, boric acid 10 ~ 20g/L, complexing agent 65 ~ 80g/L, brightening agent 4 ~ 8g/L.Neodymium of the present invention-nickel-tungsten electroplate liquid is little to environmental hazard, after configuration can long-term storage, current efficiency high; Obtained coating surface is non-microcracked, and solidity to corrosion is good.
Embodiment
Come that the invention will be further described below respectively in conjunction with specific embodiments.
Raw material involved in following examples is commercially available.
Embodiment 1: the neodymium-nickel-tungsten electroplate liquid of the present embodiment comprises following component:
The method preparing this neodymium-nickel-tungsten electroplate liquid is as follows:
Complexing agent 65g is joined in deionized water, be stirred to dissolve and form solution, in this solution, add sodium wolframate 15g, boric acid 10g, single nickel salt 80g stirring and dissolving makes mixed solution, Neodymium trioxide 0.1g and brightening agent 4g stirring and dissolving is added in this mixed solution, deionized water to the cumulative volume adding surplus is again 1L, regulate PH to 3, obtain neodymium-nickel-tungsten electroplate liquid.
Embodiment 2: the neodymium-nickel-tungsten electroplate liquid of the present embodiment comprises following component:
The method preparing this neodymium-nickel-tungsten electroplate liquid is as follows:
Complexing agent 70g is joined in deionized water, be stirred to dissolve and form solution, in this solution, add sodium wolframate 20g, boric acid 15g, single nickel salt 100g stirring and dissolving makes mixed solution, Neodymium trioxide 0.5g and brightening agent 5g stirring and dissolving is added in this mixed solution, deionized water to the cumulative volume adding surplus is again 1L, regulate PH to 3, obtain neodymium-nickel-tungsten electroplate liquid.
Embodiment 3: the neodymium-nickel-tungsten electroplate liquid of the present embodiment comprises following component:
The method preparing this neodymium-nickel-tungsten electroplate liquid is as follows:
Complexing agent 80g is joined in deionized water, be stirred to dissolve and form solution, in this solution, add sodium wolframate 25g, boric acid 20g, single nickel salt 160g stirring and dissolving makes mixed solution, Neodymium trioxide 1g and brightening agent 8g stirring and dissolving is added in this mixed solution, deionized water to the cumulative volume adding surplus is again 1L, regulate PH to 3, obtain neodymium-nickel-tungsten electroplate liquid.
The neodymium that embodiment 1 ~ 3 obtains-nickel-tungsten electroplate liquid is little to environmental hazard, after configuration can long-term storage, current efficiency high; Obtained coating surface is non-microcracked.
Adopt testing method known in the field to carry out cathode efficiency test to the electroplate liquid of embodiment 1 ~ 3 and the coating that obtained carries out salt-fog test to measure solidity to corrosion, test result is as following table.
Can find out that the corrosion resistance of coating using electroplate liquid of the present invention to obtain is obviously good than existing coating by upper table.
Neodymium of the present invention-nickel-tungsten electroplate liquid is little to environmental hazard, after configuration can long-term storage, current efficiency high; Obtained coating surface is non-microcracked, and solidity to corrosion is good.
It should be noted that and understand, when not departing from the spirit and scope of accompanying claim the present invention for required protection, various amendment and improvement can be made to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not by the restriction of given any specific exemplary teachings.
Applicant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (8)
1. neodymium-nickel-tungsten electroplate liquid, is characterized in that, comprises single nickel salt 80 ~ 160g/L, sodium wolframate 15 ~ 25g/L, Neodymium trioxide 0.05 ~ 1g/L, boric acid 10 ~ 20g/L, complexing agent 65 ~ 80g/L, brightening agent 4 ~ 8g/L.
2. neodymium according to claim 1-nickel-tungsten electroplate liquid, is characterized in that, comprises the deionized water of single nickel salt 100g/L, sodium wolframate 20g/L, Neodymium trioxide 0.3g/L, boric acid 16g/L, complexing agent 70g/L, brightening agent 5g/L and surplus.
3. neodymium according to claim 1-nickel-tungsten electroplate liquid, is characterized in that, described complexing agent is the mixture of Trisodium Citrate and oxalic acid, and described brightening agent is the mixture of asccharin and formaldehyde.
4. neodymium according to claim 3-nickel-tungsten electroplate liquid, is characterized in that, the mass ratio of Trisodium Citrate and oxalic acid is 2:1, and the mass ratio of asccharin and formaldehyde is 8:1.
5. neodymium according to claim 1-nickel-tungsten electroplate liquid, is characterized in that, the pH value of described neodymium-nickel-tungsten electroplate liquid is 3.
6. neodymium according to claim 1-nickel-tungsten electroplate liquid, is characterized in that, described neodymium-nickel-tungsten electroplate liquid working temperature 60 ~ 70 DEG C.
7. prepare a method for neodymium described in claim 1-nickel-tungsten electroplate liquid, it is characterized in that, comprise the following steps:
(1) complexing agent 10 ~ 25g is joined deionized water for stirring and form solution to dissolving;
(2) in this solution, add sodium wolframate 15 ~ 25g, boric acid 10 ~ 20g, single nickel salt 80 ~ 160g stirring and dissolving makes mixed solution;
(3) in this mixed solution, add Neodymium trioxide 0.05 ~ 1g and brightening agent 4 ~ 8g stirring and dissolving, then the deionized water adding surplus is 1L to cumulative volume, obtains neodymium-nickel-tungsten electroplate liquid.
8. preparation method according to claim 7, is characterized in that, the first acidification of Neodymium trioxide in step (3), then joins in mixed solution.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105002533A (en) * | 2015-08-21 | 2015-10-28 | 无锡桥阳机械制造有限公司 | Neodymium-nickel-chromium alloy electroplating solution and preparation method thereof |
| CN105018987A (en) * | 2015-08-21 | 2015-11-04 | 无锡桥阳机械制造有限公司 | Yttrium-nickel-iron alloy electroplate liquid and electroplating method thereof |
| CN105132968A (en) * | 2015-09-21 | 2015-12-09 | 无锡清杨机械制造有限公司 | Lanthanum, tin and zinc alloy electroplating solution and electroplating method adopting same |
| CN107606105A (en) * | 2017-08-11 | 2018-01-19 | 常熟市明瑞针纺织有限公司 | A kind of wear-resisting warp knitting machine cam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105002533A (en) * | 2015-08-21 | 2015-10-28 | 无锡桥阳机械制造有限公司 | Neodymium-nickel-chromium alloy electroplating solution and preparation method thereof |
| CN105018987A (en) * | 2015-08-21 | 2015-11-04 | 无锡桥阳机械制造有限公司 | Yttrium-nickel-iron alloy electroplate liquid and electroplating method thereof |
| CN105132968A (en) * | 2015-09-21 | 2015-12-09 | 无锡清杨机械制造有限公司 | Lanthanum, tin and zinc alloy electroplating solution and electroplating method adopting same |
| CN107606105A (en) * | 2017-08-11 | 2018-01-19 | 常熟市明瑞针纺织有限公司 | A kind of wear-resisting warp knitting machine cam |
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Application publication date: 20150107 |