CN107779934A - A kind of preparation method of oil pipeline nano-composite coating - Google Patents
A kind of preparation method of oil pipeline nano-composite coating Download PDFInfo
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- CN107779934A CN107779934A CN201711006308.7A CN201711006308A CN107779934A CN 107779934 A CN107779934 A CN 107779934A CN 201711006308 A CN201711006308 A CN 201711006308A CN 107779934 A CN107779934 A CN 107779934A
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- oil pipeline
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- plating piece
- composite coating
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Classifications
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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
-
- 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
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/04—Tubes; Rings; Hollow bodies
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/22—Polishing of heavy metals
- C25F3/24—Polishing of heavy metals of iron or steel
Abstract
The present invention relates to a kind of method that dipulse electro-deposition techniques prepare metal-base nanometer composite material, relates in particular to a kind of petroleum delivery pipeline Metal Substrate Ni W P SiC/CeO2‑TiO2Nano-composite plate preparation method.Metal Substrate Ni W P SiC/CeO are received using what this method was prepared2‑TiO2Nano composite plating layer surface uniform ground, there is higher hardness and good decay resistance and anti-wear performance.Preparation process of the present invention is simple and easy to control, has the characteristics that environmental pollution is small, production is low with maintenance cost, industrialization large-scale production can be achieved.
Description
Technical field
The present invention relates to a kind of preparation method of oil pipeline nano-composite coating, belongs to the preparation of petroleum delivery pipeline surface
The technology of nano-composite coating.
Background technology
In exploitation of oil-gas field and course of conveying, corrosion and scaling, wax deposition, abrasion are its four major public hazards, all the time along with whole
Individual process.
The corrosion and scaling of oil pipeline, wax deposition, abrasion are to cause that oil pipeline life of product used in oil field is short, maintenance cost
With principal element that is high, influenceing yield and benefit, for oil recovery, water injection well, well-digging is costly, and some wells are due to burn into
Fouling, wax deposition, abrasion well workover are frequent, stop well rate height, more oil-producings to dig a well less, maximally effective method is exactly to take certain protection
Measure, effectively reduce and stop well rate；For gathering line system, corrosion and scaling, wax deposition, wear problem are equally existed, in order to subtract
Resistance, energy-conservation, realize not heated transportation, improve transfer efficiency and ensure the quality of pumped (conveying) medium, it is also necessary to are effectively prevented
Shield.
But duct products all at present, it is impossible to be provided simultaneously with anti-corrosion, antiscale, positive wax, the performance of abrasionproof, solve oil field
Corrosion and scaling, wax deposition and the wear problem of pipeline are the problems in the production of oil field, be China or even world oil field there is an urgent need to
, to reducing oil recovery production cost, important in inhibiting of increasing economic efficiency.
The content of the invention
It is heavy using positive back pulse electricity it is an object of the invention to provide a kind of preparation method of oil pipeline nano-composite coating
Product method prepares Metal Substrate Ni-W-P-SiC/CeO2-TiO2On nano-composite coating to oil pipeline, matrix in coating is changed
The microstructure on surface so that the high temperature oxidation resistance and abrasion resistance properties of coating significantly improve.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of preparation of oil pipeline nano-composite coating
Method, comprise the following steps that：
S1 surface preparation) is carried out to oil pipeline plating piece；The surface preparation includes oil removing, electrochemical polish and work
Chemical industry sequence；
S2) using the oil pipeline plating piece pre-processed as negative electrode, by the use of graphite as anode, it is directly placed into containing nanometer
SiC、CeO2And TiO2It is straight to oil pipeline plating piece surface using two-way high frequency pulse power supply in the electro-deposition plating solution of solid powder
Tap into row dipulse electrodeposition process.
Preferred scheme, in step S1) in the preprocessing process of oil pipeline plating piece, electricity that the electrochemical polish uses
Plating solution mainly forms：0.1~5mol.L-1 of sodium hypophosphite, 0.1~5mol.L-1 of nickel sulfate；With sulfuric acid control electroplate liquid
PH value is 2~7；In electrochemical polish, the temperature of electroplate liquid is 20~80 DEG C.
Preferred scheme, in step S1) in the preprocessing process of oil pipeline plating piece, the technological parameter of electrochemical polish
For：Oil pipeline plating piece is negative electrode, uses graphite as anode, the two poles of the earth 20~100mm of die opening, 2~8Adm of current density-2,
5~30min of electroplating time.
Preferred scheme, in step S2) in the electrodeposition process of oil pipeline plating piece during, the technique of pulse electrodeposition
Parameter is：1~8Adm of current density-2, pulsewidth 10~99%, 0.5~4.5kHz of frequency, 2.0~10.0V of voltage, pulse are empty
Accounting is 0.4~0.8, and commutating period is 2~10ms；The distance between anode and negative electrode are 20~80mm, and electrodeposition time is
10~120min.
Preferred scheme, in step S2) in the electrodeposition process of oil pipeline plating piece during, electro-deposition plating solution it is main
Form and be：0.1~0.5molL of nickel sulfate-1, 0.1~0.5molL of ursolic acid sodium-1, 0.1~0.5molL of sodium hypophosphite-1, 0.1~0.5molL of ammonium sulfate-1, 0.1~0.5molL of sodium citrate-1, 0.1~0.5molL of Boratex-1, carborundum
0.1~0.5molL-1, 0.1~0.5molL of cerium oxide-1, 0.1~0.5molL of titanium oxide-1, lauryl sodium sulfate
0.0001~0.0005molL-1, the pH value that electro-deposition plating solution is adjusted with sulfuric acid is 2~7.
Preferred scheme, in step S2) in the electrodeposition process of oil pipeline plating piece during, the temperature of electro-deposition plating solution
For 20~80 DEG C.
Preferred scheme, in step S2) in the electrodeposition process of oil pipeline plating piece during, up and down stirring deposition liquid,
Make nano SiC, the CeO being suspended in electro-deposition plating solution2And TiO2Uniform deposition is in specimen surface.
Preferred scheme, in oil pipeline plating piece after pulse electrodeposition process, washing or ethanol washing can be used.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：
The preparation method of oil pipeline nano-composite coating of the present invention, by nano SiC, CeO2And TiO2Solid powder introduces
In electro-deposition plating solution, then Metal Substrate is prepared in the electro-deposition of oil pipeline surface using two-way high-frequency impulse electro-deposition techniques again
Ni-W-P-SiC/CeO2-TiO2Nano-composite plate, the microstructure of matrix surface in coating can be changed so that the anti-height of coating
Warm oxidation susceptibility and abrasion resistance properties significantly improve, and largely improve intensity, the fracture toughness of oil pipeline material
And wear resistance, less than 500 DEG C of all solvents are resistant to, it is extremely strong to the repellence of inorganic acid, alkali and salt.
In implementation process of the present invention, due to using dual-pulse power supply, it is possible to increase current density, when shortening electro-deposition
Between, so as to save the energy.It in addition, can cause oil pipeline plating piece surface grain refinement, coating using dipulse electro-deposition techniques
It is close uniform, further improve the hardness on oil pipeline plating piece surface.
In plating solution used in the present invention, processing solution used (pre-treatment, electroplate liquid) is common common molten
Liquid, and sexavalence metal chromium ions are not contained, therefore substantially environment is not polluted.
In electro-deposition plating solution used in the present invention, from nano SiC, CeO2And Ti2O particles, base in coating can be changed
The microstructure in body surface face so that the high temperature oxidation resistance and abrasion resistance properties of coating significantly improve.
Dipulse electro-deposition techniques preparation technology used in the present invention is simple, cost is cheap, to workpiece shapes and size
Have no special requirements, it is applied widely, it is easy to large-scale industrial production.
Dipulse electro-deposition of the present invention prepares Metal Substrate Ni-W-P-SiC/CeO2-TiO2Nano-composite plate has
The features such as hardness is high, chemical resistance and wearability are good, it is particularly suitable in the industry such as machine components and mould using pushing away
Extensively.
Embodiment
The present invention is described in further detail below.
The preparation method of the oil pipeline nano-composite coating of the present invention, comprises the following steps：
(1) pretreatment of oil pipeline plating piece：
1. by ordinary carbon steel oil pipeline plating piece sand paper sanding and polishing, 20~60 DEG C are put into after being cleaned with running water and is contained
H2SO4Or in HCl acid solution, activate 2min.
2. and then by the use of ordinary carbon steel oil pipeline plating piece as negative electrode, by the use of graphite as anode, it is isolated and is placed in plating
In liquid, in ordinary carbon steel oil pipeline plating piece surface direct plating last layer nickel film；By nano SiC, CeO2And TiO2Particulate introduces electricity
Deposit in plating solution, Metal Substrate is prepared in the electro-deposition of ordinary carbon steel oil pipeline surface using two-way high-frequency impulse electro-deposition techniques
Ni-W-P-SiC/CeO2-TiO2Nano-composite plate.
The main composition of electroplate liquid is：Sodium hypophosphite 0.5molL-1, nickel sulfate 1molL-1, electricity is adjusted with sulfuric acid
The pH value of plating solution is 3.
Electroplating technological parameter is：The two poles of the earth die opening 30mm, 30 DEG C of temperature, current density 6Adm-2, electroplating time 5min.
3. rinse 3min with clear water after having electroplated.
(2) electrodeposition process of oil pipeline plating piece：
1. in dipulse electrodeposition process, power supply uses dipulse numerical control controllable electric power, pulsewidth 30%, pulse duration
Than for 1000kHz, voltage 5V, current density 8Adm-2, pulse duty factor 0.4, commutating period 2ms.
It is 2. defeated with insoluble anode (graphite) for anode using the ordinary carbon steel oil pipeline plating piece after electroplated Ni as negative electrode
The distance between oil-piping plating piece negative electrode and anode are 30mm.
3. using cathode moving device and circulation filter during pulse plating, it is directly placed under conditions of stirring
In electro-deposition plating solution.The main composition of electro-deposition plating solution is：Nickel sulfate 0.2molL-1, ursolic acid sodium 0.2molL-1, secondary phosphorous
Sour sodium 0.2molL-1, ammonium sulfate 0.2molL-1, sodium citrate 0.2molL-1, Boratex 0.2molL-1, carborundum
0.3mol·L-1, cerium oxide 0.3molL-1, titanium oxide 0.3molL-1, lauryl sodium sulfate 0.0003molL-1, use
The pH value of sulfuric acid regulation electroplate liquid is 5.
4. it is 50 DEG C to control electro-deposition bath temperature, pulse electrodeposition 30min, you can obtain Metal Substrate Ni-W-P-SiC/
CeO2-TiO2Nano-composite plate.
(3) post processing of oil pipeline plating piece：
Oil pipeline plating piece after dipulse electrodeposition process is rinsed into 5min with second alcohol and water, dries, that is, obtains metal
Base Ni-W-P-SiC/CeO2-TiO2The ordinary carbon steel oil pipeline plating piece of nano-composite plate.
The present invention prepares resulting Metal Substrate Ni-W-P-SiC/CeO using dipulse electro-deposition2-TiO2Nano composite plating
The surfacing of layer, compared with electroplating hard chrome technology, have higher microhardness, excellent abrasion resistance properties and chemically-resistant rotten
Corrosion can wait, and its data is as shown in the table,
It the above is only the concrete application example of the present invention, protection scope of the present invention be not limited in any way.All uses
Equivalent transformation or equivalent replacement and the technical scheme formed, all fall within rights protection scope of the present invention.
Claims (8)
1. a kind of preparation method of oil pipeline nano-composite coating, it is characterised in that comprise the following steps that：
S1 surface preparation) is carried out to oil pipeline plating piece；The surface preparation includes oil removing, electrochemical polish and activation work
Sequence；
S2) using the oil pipeline plating piece pre-processed as negative electrode, by the use of graphite as anode, be directly placed into containing nano SiC,
CeO2And TiO2In the electro-deposition plating solution of solid powder, oil pipeline plating piece surface is directly entered using two-way high frequency pulse power supply
Row dipulse electrodeposition process.
2. the preparation method of oil pipeline nano-composite coating according to claim 1, it is characterised in that：In step S1)
The electroplate liquid that in the preprocessing process of oil pipeline plating piece, the electrochemical polish uses mainly is formed for：Sodium hypophosphite
0.1~5mol.L-1,0.1~5mol.L-1 of nickel sulfate；It is 2~4 to control the pH value of electroplate liquid with sulfuric acid；In electrochemical polish
The temperature of electroplate liquid is 20~80 DEG C.
3. the preparation method of oil pipeline nano-composite coating according to claim 1 or 2, it is characterised in that：In step
S1) in the preprocessing process of oil pipeline plating piece, the technological parameter of electrochemical polish is：Oil pipeline plating piece is negative electrode,
Graphite is used as anode, the two poles of the earth 20~100mm of die opening, 2~8Adm of current density-2, 5~30min of electroplating time.
4. the preparation method of oil pipeline nano-composite coating according to claim 3, it is characterised in that：In step S2)
In to the electrodeposition process of oil pipeline plating piece during, the technological parameter of pulse electrodeposition is：1~8Adm of current density-2,
Pulsewidth 10~99%, 0.5~4.5kHz of frequency, 2.0~10.0V of voltage, pulse duty factor are 0.4~0.8, commutating period 2
~10ms；The distance between anode and negative electrode are 20~80mm, and electrodeposition time is 10~120min.
5. the preparation method of oil pipeline nano-composite coating according to claim 4, it is characterised in that：In step S2)
In to the electrodeposition process of oil pipeline plating piece during, the main composition of electro-deposition plating solution is：0.1~0.5mol of nickel sulfate
L-1, 0.1~0.5molL of ursolic acid sodium-1, 0.1~0.5molL of sodium hypophosphite-1, 0.1~0.5molL of ammonium sulfate-1, lemon
0.1~0.5molL of lemon acid sodium-1, 0.1~0.5molL of Boratex-1, 0.1~0.5molL of carborundum-1, cerium oxide 0.1
~0.5molL-1, 0.1~0.5molL of titanium oxide-1, 0.0001~0.0005molL of lauryl sodium sulfate-1, use sulphur
The pH value of acid regulation electro-deposition plating solution is 2~4.
6. the preparation method of oil pipeline nano-composite coating according to claim 5, it is characterised in that：In step S2)
In to the electrodeposition process of oil pipeline plating piece during, the temperature of electro-deposition plating solution is 20~80 DEG C.
7. the preparation method of oil pipeline nano-composite coating according to claim 6, it is characterised in that：In step S2)
In to the electrodeposition process of oil pipeline plating piece during, up and down stirring deposition liquid, make the nanometer being suspended in electro-deposition plating solution
SiC、CeO2And TiO2Uniform deposition is in specimen surface.
8. the preparation method of oil pipeline nano-composite coating according to claim 1, it is characterised in that：In oil pipeline
Plating piece can use washing or ethanol washing after pulse electrodeposition process.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110484944A (en) * | 2019-08-15 | 2019-11-22 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of preparation method of the composite electrolyte for preparing petroleum pipeline corrosion-resistant surface and ultrasonic wave added electro-deposition petroleum pipeline anticorrosion layer |
| CN113416990A (en) * | 2021-08-23 | 2021-09-21 | 胜利油田胜鑫防腐有限责任公司 | Preparation process of metal coating anti-corrosion pipe |
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| CN113416990A (en) * | 2021-08-23 | 2021-09-21 | 胜利油田胜鑫防腐有限责任公司 | Preparation process of metal coating anti-corrosion pipe |
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