CN104313656A - Nickel-tungsten-silicon carbide-aluminum oxide composite electroplate liquid as well as preparation method and application thereof - Google Patents
Nickel-tungsten-silicon carbide-aluminum oxide composite electroplate liquid as well as preparation method and application thereof Download PDFInfo
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- CN104313656A CN104313656A CN201410628198.8A CN201410628198A CN104313656A CN 104313656 A CN104313656 A CN 104313656A CN 201410628198 A CN201410628198 A CN 201410628198A CN 104313656 A CN104313656 A CN 104313656A
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- silicon carbide
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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
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
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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 relates to nickel-tungsten-silicon carbide-aluminum oxide composite electroplate liquid as well as a preparation method and application thereof, and belongs to the technical field of material surface treatment. Each liter of the composite electroplate liquid comprises the following raw materials: 10-30 g of sodium tungstate, 140-200 g of nickel sulfate, 10-40 g of silicon carbide, 5-20 g of aluminum oxide, 60-100 g of a complexing agent, 1-2 mL of a surfactant and the balance of de-ionized water. According to the composite electroplate liquid provided by the invention, the raw materials are easily available, the environmental harm is little, and the composite electroplate liquid can be stored for a long term after being prepared; the preparation method provided by the invention is simple, feasible and favorable for industrialization; the invention further provides a method for electroplating petroleum machinery by the composite electroplate liquid, an obtained composite coating is uniform in particle distribution, does not have microcracks on the surface and is remarkably improved in both corrosion resistance and wear resistance.
Description
Technical field
The present invention relates to a kind of nickel-tungsten-silicon carbide-alumina composite electroplate liquid and its preparation method and application, belong to technical field of material surface treatment.
Background technology
At present, the eccentric wear of field of petroleum machinery and corrosion phenomenon seriously, also do not 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 advantage with low cost simultaneously.Along with the continuous consumption of petroleum resources, the environment of recover petroleum is more and more severe, requires more and more higher to the corrosion-resistant crocking resistance of oil equipment.Therefore, the anticorrosion antiwear technology studying petroleum machinery is the problem that people are absorbed in always.
A kind of scheme that may solve is tungsten alloy plating, tungsten can not be independent from aqueous solution electrodeposition out, but can induced codeposition be out together with iron family element ting (iron, nickel, cobalt), obtain the tungstenalloy of various component, ferrotungsten, nickel tungsten, ferrum-nickel-tungsten alloy, ni-w-p alloy etc. that picture has been reported, through controlling to obtain non-crystaline amorphous metal.But above plating exists fragility large (ferrotungsten), electrodeposition rate slow (ferrum-nickel-tungsten alloy), apparently have tiny crack, plate and thickly have the shortcomings such as pin hole, and wear resisting property is worse than electrodeposited chromium layers, limits its range of application.
Silicon carbide due to stable chemical performance, thermal conductivity is high, thermal expansivity is little, wear resisting property is good, except do abrasive material with except, also have other purposes a lot, as being used as corrosion-resistant, high temperature resistant, anti-ballistic materials etc.Aluminum oxide is applicable to multiple dry wet treatment process, can, by meticulous for the polishing of the uneven surface of any workpiece, be one of abrasive material of most economical material benefit.In existing anticorrosion antiwear treatment technology, published have be used alone silicon carbide or aluminum oxide does the technology of composite deposite as high-abrasive material, but one matter impurity is many, the composite deposite finally made easily lumps, and anticorrosion antiwear still cannot meet industrial requirement.
Summary of the invention
The object of this invention is to provide a kind of nickel-tungsten-silicon carbide-alumina composite electroplate liquid, its raw material be easy to get, little to environmental hazard, can long-term storage after configuration; Invention also provides simple, be beneficial to and realize industrialized preparation method; Present invention also offers application nickel-tungsten-silicon carbide-alumina composite electroplate liquid and carry out electric plating method to petroleum machinery, the composite deposite even particle distribution obtained, surface is non-microcracked, and anticorrosive wear-resistant is all significantly improved.
Nickel-tungsten-silicon carbide of the present invention-alumina composite electroplate liquid, be made up of the raw material of following content: sodium wolframate 10-30g, single nickel salt 140-200g, silicon carbide 10-40g, aluminum oxide 5-20g, complexing agent 60-100g, tensio-active agent 1-2mL, surplus is deionized water, with often liter of nickel-tungsten-silicon carbide-alumina composite electroplate liquid metering.
Described complexing agent is the mixture of citric acid and glycine, and mixing quality is than being 2:1.Adopt citric acid and glycine as compound complex agent, both can ensure electroplating velocity faster, the stability of plating solution can be ensured again.
Described tensio-active agent is the mixture of asccharin and 3,5-dimethyl-1-hexin-3-alcohol, and mixing quality is than being 1:3.Adopt asccharin and 3,5-dimethyl-1-hexin-3-alcohol as complexed surfactant, both can prevent pin hole, and the particle long period can also be enable to keep suspended state, can not precipitate very soon.
The preparation method of described nickel-tungsten-silicon carbide-alumina composite electroplate liquid, comprises the following steps:
(1) complexing agent is joined in deionized water, be stirred to dissolving;
(2) single nickel salt is joined in step (1) gained solution, be stirred to dissolving;
(3) step (2) gained solution is heated to 45-65 DEG C, first adds sodium wolframate and be stirred to dissolving, then add tensio-active agent, by the pH value of ammoniacal liquor regulator solution to 2-4;
(4) in step (3) gained solution, add silicon carbide and aluminum oxide, obtain nickel-tungsten-silicon carbide-alumina composite electroplate liquid.
Described nickel-tungsten-silicon carbide-the application of alumina composite electroplate liquid in electroplating process, is do anode with graphite, does negative electrode with petroleum machinery workpiece, controls at 50-70 DEG C by nickel-tungsten-silicon carbide-alumina composite temperature of electroplating solution, and current density is 4-12A/dm
2, electroplating time is 2-4h, and solution ph is 2-4.
Utilize above-mentioned composition and engineering, the composite galvanized coating of flat appearance can be obtained.Utilize the surface topography of scanning electron microscope, x-ray diffractometer, energy spectrometer, hardness tester mensuration nickel-tungsten-silicon carbide-aluminum oxide coating, phase structure, composition content and hardness, result is as follows:
Scanning result shows, adding of silicon carbide and aluminum oxide, such that pellet density is higher, even particle distribution, surface be non-microcracked; X-ray diffraction result shows, part crystallization in nickel-tungsten-silicon carbide-aluminum oxide coating, and after heat treatment, crystalline state trend strengthens; Energy spectrometer test result shows, main containing nickel, tungsten, carbon, silicon, oxygen, aluminium element in nickel-tungsten-silicon carbide-aluminum oxide coating; Hardness test result shows, coating hardness is 550HV-600HV, and through 320 DEG C of insulations after 1 hour, coating hardness is 950-1000HV.
Instant invention overcomes the shortcoming using single high-abrasive material impurity many, the feature that abundant fusion two kinds of granular sizes are different, on the basis of former nickel tungsten alloy electroplating layer, add silicon carbide and aluminum oxide, adopt citric acid and glycine as compound complex agent, and adopt asccharin and 3,5-dimethyl-1-hexin-3-alcohol is as complexed surfactant, petroleum machinery workpiece is electroplated, obtains that pellet density is higher, even particle distribution, surface are non-microcracked and corrosion-resistant, nickel-tungsten-silicon carbide-alumina composite electrolytic coating that wear resistance is all significantly improved.Prepare in the process of nickel-tungsten-silicon carbide-alumina composite electroplate liquid, adopt specific order of addition(of ingredients) and processing parameter, overcome the phenomenon of coating caking.Electroplate liquid is released without acid mist in the course of the work, and current efficiency is high.
Compared with prior art, the present invention has following beneficial effect:
(1) nickel-tungsten-silicon carbide provided by the invention-alumina composite electroplate liquid, raw material is easy to get, little to environmental hazard, can long-term storage after configuration;
(2) the present invention prepare the method for nickel-tungsten-silicon carbide-alumina composite electroplate liquid simple, be beneficial to and realize industrialization;
(3) when the present invention's application nickel-tungsten-silicon carbide-alumina composite electroplate liquid is electroplated petroleum machinery, electroplate liquid is released without acid mist, current efficiency is high, the composite deposite pellet density obtained is higher, even particle distribution, surface is non-microcracked, corrosion-resistant, wear resistance is all significantly improved.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but do not limit enforcement of the present invention.
Embodiment 1
A kind of preparation method of nickel-tungsten-silicon carbide-alumina composite electroplate liquid (according to one liter of metering), comprises the following steps:
(1) 40g citric acid and 20g glycine are joined in deionized water, be stirred to dissolving;
(2) 140g single nickel salt is joined in step (1) gained solution, be stirred to dissolving;
(3) step (2) gained solution is heated to 65 DEG C, first add 30g sodium wolframate and be stirred to dissolving, add the mixture (mixing quality is than being 1:3) of 2mL asccharin and 3,5-dimethyl-1-hexin-3-alcohol again, by the pH value to 2 of ammoniacal liquor regulator solution;
(4) in step (3) gained solution, add 10g silicon carbide and 5g aluminum oxide, obtain nickel-tungsten-silicon carbide-alumina composite electroplate liquid.
Do anode with graphite, do negative electrode with pretreated petroleum machinery workpiece shield cap, control at 50 DEG C by nickel-tungsten-silicon carbide-alumina composite temperature of electroplating solution, current density is 12A/dm
2, electroplating time is 2h, and solution ph is 2, electroplates shield cap.
By under the shield cap room temperature after plating, at Na
2cO
315g/L, Na
3pO
4flood 3min in 15g/L, then with water, shield cap surface cleaning is clean, dry up, obtaining thickness of coating is 5.8 μm.
Embodiment 2
Preparation method's (according to one liter of metering) of a kind of nickel-tungsten-silicon carbide-alumina composite electroplate liquid, comprises the following steps:
(1) 67g citric acid and 33g glycine are joined in deionized water, be stirred to dissolving;
(2) 200g single nickel salt is joined in step (1) gained solution, be stirred to dissolving;
(3) step (2) gained solution is heated to 45 DEG C, first add 10g sodium wolframate and be stirred to dissolving, add the mixture (mixing quality is than being 1:3) of 1mL asccharin and 3,5-dimethyl-1-hexin-3-alcohol again, by the pH value to 3 of ammoniacal liquor regulator solution;
(4) in step (3) gained solution, add 40g silicon carbide and 20g aluminum oxide, obtain nickel-tungsten-silicon carbide-alumina composite electroplate liquid.
Do anode with graphite, do negative electrode with pretreated petroleum machinery workpiece shield cap, control at 70 DEG C by nickel-tungsten-silicon carbide-alumina composite temperature of electroplating solution, current density is 4A/dm
2, electroplating time is 4h, and solution ph is 3, electroplates shield cap.
By under the shield cap room temperature after plating, at Na
2cO
315g/L, Na
3pO
4flood 3min in 15g/L, then with water, shield cap surface cleaning is clean, dry up, obtaining thickness of coating is 8.3 μm.
Embodiment 3
Preparation method's (according to one liter of metering) of a kind of nickel-tungsten-silicon carbide-alumina composite electroplate liquid, comprises the following steps:
(1) 54g citric acid and 26g glycine are joined in deionized water, be stirred to dissolving;
(2) 160g single nickel salt is joined in step (1) gained solution, be stirred to dissolving;
(3) step (2) gained solution is heated to 60 DEG C, first add 20g sodium wolframate and be stirred to dissolving, add the mixture (mixing quality is than being 1:3) of 1.5mL asccharin and 3,5-dimethyl-1-hexin-3-alcohol again, by the pH value to 4 of ammoniacal liquor regulator solution;
(4) in step (3) gained solution, add 20g silicon carbide and 15g aluminum oxide, obtain nickel-tungsten-silicon carbide-alumina composite electroplate liquid.
Do anode with graphite, do negative electrode with pretreated petroleum machinery workpiece shield cap, control at 60 DEG C by nickel-tungsten-silicon carbide-alumina composite temperature of electroplating solution, current density is 8A/dm
2, electroplating time is 3h, and solution ph is 4, electroplates shield cap.
By under the shield cap room temperature after plating, at Na
2cO
315g/L, Na
3pO
4flood 5min in 15g/L, then with water, shield cap surface cleaning is clean, dry up, obtaining thickness of coating is 7.9 μm.
Claims (3)
1. nickel-tungsten-silicon carbide-alumina composite electroplate liquid, it is characterized in that being made up of the raw material of following content: sodium wolframate 10-30 g, single nickel salt 140-200 g, silicon carbide 10-40 g, aluminum oxide 5-20 g, complexing agent 60-100 g, tensio-active agent 1-2 mL, surplus is deionized water, with often liter of nickel-tungsten-silicon carbide-alumina composite electroplate liquid metering;
Described complexing agent is the mixture of citric acid and glycine, and mixing quality is than being 2:1;
Described tensio-active agent is the mixture of asccharin and 3,5-dimethyl-1-hexin-3-alcohol, and mixing quality is than being 1:3.
2. a preparation method for nickel-tungsten-silicon carbide according to claim 1-alumina composite electroplate liquid, is characterized in that comprising the following steps:
(1) complexing agent is joined in deionized water, dissolve;
(2) single nickel salt is joined in step (1) gained solution, dissolve;
(3) step (2) gained solution is heated to 45-65 DEG C, first adds sodium wolframate and dissolve, then add tensio-active agent, by the pH value of ammoniacal liquor regulator solution to 2-4;
(4) in step (3) gained solution, add silicon carbide and aluminum oxide, obtain nickel-tungsten-silicon carbide-alumina composite electroplate liquid.
3. the nickel-tungsten-silicon carbide according to claim 1-application of alumina composite electroplate liquid in electroplating process, is characterized in that: control at 50-70 DEG C by nickel-tungsten-silicon carbide-alumina composite temperature of electroplating solution, and current density is 4-12 A/dm
2, electroplating time is 2-4 h, and solution ph is 2-4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410628198.8A CN104313656A (en) | 2014-11-07 | 2014-11-07 | Nickel-tungsten-silicon carbide-aluminum oxide composite electroplate liquid as well as preparation method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831324A (en) * | 2015-04-30 | 2015-08-12 | 云南民族大学 | Preparation method of Ni-W/SiC composite coating |
| CN104846409A (en) * | 2015-04-30 | 2015-08-19 | 云南民族大学 | High-tungsten-content flawless tungsten-nickel alloy coating layer and electroplating liquid and electroplating process |
| CN108914172A (en) * | 2018-07-13 | 2018-11-30 | 胜利油田金岛实业有限责任公司 | A kind of amorphous nickel tungsten cobalt-tungsten-nickel-phosphorus alloy electroplating and processing technology applied to oil pump sleeve plating |
| CN110484942A (en) * | 2019-08-07 | 2019-11-22 | 湖南纳菲尔新材料科技股份有限公司 | A kind of more first micron crystalline substance coating of Ni-P-C-Si-W, plating solution and preparation method thereof |
| CN114351218A (en) * | 2022-01-27 | 2022-04-15 | 青岛永新表面处理有限公司 | High-hardness self-lubricating nickel-tungsten-phosphorus composite electroplating solution, preparation method, electroplating method and application thereof |
-
2014
- 2014-11-07 CN CN201410628198.8A patent/CN104313656A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831324A (en) * | 2015-04-30 | 2015-08-12 | 云南民族大学 | Preparation method of Ni-W/SiC composite coating |
| CN104846409A (en) * | 2015-04-30 | 2015-08-19 | 云南民族大学 | High-tungsten-content flawless tungsten-nickel alloy coating layer and electroplating liquid and electroplating process |
| CN108914172A (en) * | 2018-07-13 | 2018-11-30 | 胜利油田金岛实业有限责任公司 | A kind of amorphous nickel tungsten cobalt-tungsten-nickel-phosphorus alloy electroplating and processing technology applied to oil pump sleeve plating |
| CN110484942A (en) * | 2019-08-07 | 2019-11-22 | 湖南纳菲尔新材料科技股份有限公司 | A kind of more first micron crystalline substance coating of Ni-P-C-Si-W, plating solution and preparation method thereof |
| CN110484942B (en) * | 2019-08-07 | 2022-01-04 | 湖南纳菲尔新材料科技股份有限公司 | Ni-P-C-Si-W multi-element micron crystal coating, plating solution and preparation method thereof |
| CN114351218A (en) * | 2022-01-27 | 2022-04-15 | 青岛永新表面处理有限公司 | High-hardness self-lubricating nickel-tungsten-phosphorus composite electroplating solution, preparation method, electroplating method and application thereof |
| CN114351218B (en) * | 2022-01-27 | 2024-04-12 | 青岛永新表面处理有限公司 | High-hardness self-lubricating nickel-tungsten-phosphorus composite electroplating solution, preparation method thereof, electroplating method and application |
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Application publication date: 20150128 |