CN104403484A - Composite nano coating for oil casing threads and preparation method and use method of composite nano coating - Google Patents
Composite nano coating for oil casing threads and preparation method and use method of composite nano coating Download PDFInfo
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- CN104403484A CN104403484A CN201410770025.XA CN201410770025A CN104403484A CN 104403484 A CN104403484 A CN 104403484A CN 201410770025 A CN201410770025 A CN 201410770025A CN 104403484 A CN104403484 A CN 104403484A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D159/00—Coating compositions based on polyacetals; Coating compositions based on derivatives of polyacetals
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/68—Particle size between 100-1000 nm
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a composite nano coating for oil casing threads. The composite nano coating comprises the following components: film-forming resin, an organic solvent, nano lubrication packing, a dispersing agent and a defoaming agent. A preparation method comprises the following steps: 1) uniformly mixing the nano lubrication packing and the dispersing agent; 2) grinding the mixture and the organic solvent, and uniformly mixing; 3) adding the film-forming resin, and uniformly mixing; 4) continuously adding the solvent till appropriate concentration, and uniformly mixing; and 5) sealing and storing the prepared coating. The use method of the coating comprises the following steps: 1) pretreating the oil casing threads, including decontamination, degreasing, washing with water, pickling and sand blasting or phosphorization; 2) coating or spraying the uniformly mixed coating on the surfaces of the threads; and 3) curing the coating at the room temperature. The composite nano coating disclosed by the invention is simple in preparation process, convenient to construct and low in cost, thread gluing is effectively avoided, and the threads are prevented from corrosion.
Description
Technical field
The invention belongs to technical field of petroleum machinery, be specifically related to a kind of oil casing threaded composite nano-coating and preparation thereof, using method, can effectively avoid tubing and casing in use to occur thread gluing, and play corrosion prevention effect.
Background technology
Thread gluing failure phenomenon is when material surface relatively sliding or rolling, merges the phenomenon causing surface to be torn between the material surface contacted with each other due to cold welding.Oil sleeve joint Thread-sticking is oil casing threaded when upper, shackle, the nonideal smooth contact of the screw thread contacted with each other, but there is certain roughness and shape, size deviation, under the effect of contact pressure, real contact area will far below theoretical contact area, cause the pressure of surface in contact regional area to exceed the yield strength of screw thread base material, thus produce viscous deformation and cause two flank of tooth generation cold welding phenomenons contacted with each other between screw thread.When two flank of tooth continue to relatively rotate, cold welding position will be torn.Therefore in thread surface, occur the scar along the direction of rotating, this damage failure procedure is just referred to as " thread gluing ".
This is also modal a kind of form that petroleum casing pipe lost efficacy.Light then the surface of whole screw thread can be damaged, greatly shorten tubing and casing work-ing life, heavy then cause the slight reduction of the stopping property of sleeve pipe and connection, there is the accident taking off mouth and leakage, bring heavy losses to field produces.At present, tubing thread, substantially all with the process of surface treatment such as copper facing, phosphatization, separately adds and smears thread compound and carry out lubrication protection screw thread and avoid thread gluing.But the solution of copper facing, phosphating process has very large environmental hazard, usually containing heavy metal substances such as lead, copper, zinc in thread compound, flow out in upper shackle process, serious pollution is caused to the environment of surrounding, thread compound is accumulated in Oil/gas Well simultaneously, then need to carry out clean-out operation continually, this significantly increases production cost, thread compound can harden because temperature is too low again in cold district and causes tubing and casing stress to increase in addition.Now main employing of smearing of thread compound is abovegroundly manually smeared, and the consumption of thread compound is often inaccurate, and efficiency is lower.Copper facing production efficiency is lower, and economy is bad, can not realize large-scale use.Therefore, how simple and effectively can avoid tubing and casing thread gluing, to become one of oil-gas mining Key technique problem needing solution badly.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of this invention is to provide a kind of oil casing threaded composite nano-coating and preparation thereof, using method, the method production process is simple, cost is low, environmental friendliness, and can effectively avoid tubing and casing in use to occur thread gluing, and play corrosion prevention effect.
For achieving the above object, the technical solution used in the present invention is: a kind of oil casing threaded composite nano-coating, comprises following component:
Comprise following component: by film-forming resin, organic solvent, nano lubricating filler, dispersion agent, defoamer; Wherein the mass percent of film-forming resin is 5 % ~ 25 %, the mass percent of organic solvent is 50 % ~ 80 %, the mass percent of nano lubricating coating is 1.5 % ~ 20 %, the mass percent of dispersion agent is 0.1 % ~ 10 %, the mass percent of defoamer is 0.1 % ~ 5 %.
Described film-forming resin is the one or several arbitrarily in resol, vibrin, Synolac, unsaturated polyester, aminoresin, acrylic resin, aldehyde resin, epoxy resin, urethane resin and synthetic resins, and mass percent is 5 % ~ 25 %.
Described organic solvent is the one or several arbitrarily in based organic solvent, alcohol organic solvent, ether organic solvent or organic solvent of ketone.
Described nano lubricating filler comprises the organic oil pad of nanometer and nano inorganic oil pad.
The organic slip coating of described nanometer is nanometer polytetrafluoroethylcomposite, and its particle diameter is 20 ~ 800 nm, and mass percent is 0.5 % ~ 5 %.
Described nano inorganic slip coating is the one or several arbitrarily in nano molybdenum disulfide, nanmeter antimong trioxide, nanometer silicon carbide, nano-graphite etc., and its particle diameter is 20 ~ 500 nm.The mass percent of nano inorganic slip coating is 1 % ~ 15 %.
A preparation method for oil casing threaded composite nano-coating, comprises the following steps:
Step one is even by nano lubricating filler, dispersant; Step 2, grinds said mixture and organic solvent according to 1 ~ 30 times of ratio, mixes; Step 3, add the film-forming resin that mass percent is 5 % ~ 25 %, the defoamer of mass percent 0.05 % ~ 2.5 %, mixes; Step 4, continuing to add solvent to mass percent is 50 % ~ 80 %, adds the defoamer of mass percent 0.05 % ~ 2.5 %, mixes; Step 5, by the coating sealed storage configured.
A using method for oil casing threaded composite nano-coating, comprises the following steps: step one, and oil casing threaded place carries out pre-treatment, comprises decontamination, degreasing, washing, pickling and sandblasting or phosphatization; Step 2, through step one, oil casing threaded surfaceness will reach Ra 5 μm ~ Ra 10 μm; Step 3, by the coating application mixed or be sprayed at thread surface, coat-thickness is 5 μm ~ 20 μm; Step 4, at room temperature places 2 h ~ 48 h consolidations by coating.
Compared with prior art, the present invention has following beneficial effect:
The present invention takes a kind of process for treating surface, a kind of composite nano-coating is adopted on oil casing threaded surface, this kind of innovative screw thread compound coating fully combines the extreme pressure anti-attrition lubricating property of inorganic lubricant filler, the synergy of the pole low-friction coefficient of tetrafluoroethylene, make tubing and casing both can realize high lubrication upper smashing, anti-stick button can be avoided again, in conjunction with the embodiments 1, Fig. 3, Fig. 4 and Fig. 5 are known, 3000 Nm are reached through 10 upper shackles, torque wrench moments, screw thread place throws away excellent, does not have thread gluing phenomenon to occur.And film-forming resin effectively can completely cut off tubing matrix and corrosive environment again, play protection screw thread from corrosion.This method can simplify aboveground construction process, improves operating efficiency, reduces costs, and increases connection reliability, environmentally safe, and it uses not by the regional effect of natural conditions of application.
accompanying drawing explanation
The TEM photo of nanometer polytetrafluoroethylcomposite of Fig. 1 for using in the present invention.
The TEM photo of nano inorganic oil pad of Fig. 2 for using in the present invention.
Fig. 3 is photo before upper in the specific embodiment of the invention 1, shackle, and wherein Fig. 3 (a) is pin thread photo before upper button, and Fig. 3 (b) is box photo before upper button.
Fig. 4 is photo after 5 upper, shackles in the specific embodiment of the invention 1, and wherein Fig. 4 (a) is pin thread photo after upper, shackle 5 times, and Fig. 4 (b) is box photo after upper, shackle 5 times.
Fig. 5 is photo after 10 upper, shackles in the specific embodiment of the invention 1, and wherein Fig. 5 (a) is pin thread photo after upper, shackle 10 times, and Fig. 5 (b) is box photo after upper, shackle 10 times.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
embodiment 1
A kind of oil casing threaded composite nano-coating, comprises following component:
Film-forming resin is aldehyde resin and synthetic resins, and mass percent is 12%;
Organic solvent is n-propyl alcohol and tetryl formate, and mass percent is respectively 32% and 40 %;
Nano lubricating coating be: particle diameter is 30nm tetrafluoroethylene, and its mass percent is 1%; Particle diameter is the molybdenumdisulphide of 50nm and the mixture of nano-graphite, and its mass percent is 1%;
The mass percent of dispersion agent is 10%;
The mass percent of defoamer is 4%.
A preparation method for oil casing threaded composite nano-coating, comprises the following steps: step one, and by tetrafluoroethylene, its mass percent is 1%, and particle diameter is 30nm; The mixture of molybdenumdisulphide and nano-graphite, its mass percent are 1%, particle diameter is 50nm; Dispersion agent 10% mixes; Step 2, grinds said mixture and organic solvent according to 20 times of ratios, mixes; Step 3, adds the film-forming resin that mass percent is 12%, mass percent be 2% defoamer mix; Step 4, continuing to add organic solvent to mass percent is 72%, and the defoamer adding mass percent 2% mixes; Step 5, by the coating sealed storage configured.
A using method for oil casing threaded composite nano-coating, comprises the following steps:
Step one, oil casing threaded place carries out pre-treatment, comprises decontamination, degreasing, washing, pickling and sandblasting or phosphatization; Step 2, through step one, oil casing threaded surfaceness will reach Ra5 μm; Step 3, by the coating application mixed or be sprayed at thread surface, coat-thickness is 10 μm; Step 4, at room temperature places 24h consolidation by coating.
embodiment 2
A kind of oil casing threaded composite nano-coating, comprises following component:
Film-forming resin is aminoresin and synthetic resins, and mass percent is 12%;
Organic solvent is diisopropyl ether and tetryl formate, and mass percent is respectively 40% and 40%;
Nano lubricating coating is: particle diameter is the tetrafluoroethylene of 100nm, and its mass percent is 1%; The mixture of particle diameter to be the antimonous oxide of 80nm and particle diameter be 50nm silicon carbide, its mass percent is 3%;
The mass percent of dispersion agent is 3%;
The mass percent of defoamer is 1%.
A preparation method for oil casing threaded composite nano-coating, comprises the following steps: step one, and by nanometer polytetrafluoroethylcomposite, its mass percent is 1%, and particle diameter is 100nm; Nanmeter antimong trioxide and nanometer silicon carbide, its mass percent is 3%, and its particle diameter is that 80nm mixes with dispersion agent 3%; Step 2, grinds said mixture and based organic solvent and alcohol organic solvent according to 15 times of ratios, mixes; Step 3, adds aminoresin and synthetic resins that mass percent is 12%, add mass percent be 0.3% defoamer mix; Step 4, continuing to add organic solvent to mass percent is 80%, adds the defoamer that mass percent is 0.7%, mixes; Step 5, by the coating sealed storage configured.
A using method for oil casing threaded composite nano-coating, comprises the following steps:
Step one, oil casing threaded place carries out pre-treatment, comprises decontamination, degreasing, washing, pickling and sandblasting; Step 2, through step one, oil casing threaded surfaceness will reach Ra 10 μm; Step 3, by the coating application mixed or be sprayed at thread surface, coat-thickness is 15 μm; Step 4, at room temperature places 30 h consolidations by coating.
embodiment 3
A kind of oil casing threaded composite nano-coating, comprises following component:
Film-forming resin is epoxy resin and synthetic resins, and mass percent is 20%;
Organic solvent is propyl carbinol and tetryl formate, and mass percent is respectively 30% and 38%;
Nano lubricating coating is: particle diameter is the tetrafluoroethylene of 500nm, and its mass percent is 2%; Its particle diameter is molybdenumdisulphide and the nanometer silicon carbide mixture of 200nm, and its mass percent is 3%.
The mass percent of dispersion agent is 5%;
The mass percent of defoamer is 2%.
A preparation method for oil casing threaded composite nano-coating, comprises the following steps: step one, and by nanometer polytetrafluoroethylcomposite, its mass percent is 2%, and particle diameter is 500nm; Nano molybdenum disulfide and nanometer silicon carbide, its mass percent is 3%, and its particle diameter is that 200nm and dispersant are even; Step 2, grinds said mixture and organic solvent of ketone according to 10 times of ratios, mixes; Step 3, adds epoxy resin and urethane resin that mass percent is 20%, add mass percent be 1% defoamer mix; Step 4, continuing to add organic solvent to mass percent is 68%, adds the defoamer that mass percent is 1%, mixes; Step 5, by the coating sealed storage configured.
A preparation method for oil casing threaded composite nano-coating, comprises the following steps:
Step one, oil casing threaded place carries out pre-treatment, comprises decontamination, degreasing, washing, pickling and sandblasting or phosphatization; Step 2, through step one, oil casing threaded surfaceness will reach Ra10 μm; Step 3, by the coating application mixed or be sprayed at thread surface, coat-thickness is 20 μm; Step 4, at room temperature places 48h consolidation by coating.
See Fig. 1, Fig. 1 TEM photo of nanometer polytetrafluoroethylcomposite for using in the present invention.
See Fig. 2, Fig. 2 TEM photo of nano inorganic oil pad for using in the present invention.
Be photo before upper in the specific embodiment of the invention 1, shackle see Fig. 3, Fig. 3, wherein Fig. 3 (a) is pin thread photo before upper button, and Fig. 3 (b) is box photo before upper button.
Be photo after 5 upper, shackles in the specific embodiment of the invention 1 see Fig. 4, Fig. 4, wherein Fig. 4 (a) is pin thread photo after upper, shackle 5 times, and Fig. 4 (b) is box photo after upper, shackle 5
Be photo after 10 upper, shackles in the specific embodiment of the invention 1 see Fig. 5, Fig. 5, wherein Fig. 5 (a) is pin thread photo after upper, shackle 10 times, and Fig. 5 (b) is box photo after upper, shackle 10 times.
Claims (8)
1. an oil casing threaded composite nano-coating, by mass percentage, it is characterized in that, comprise following component: the film-forming resin of 5% ~ 25%, the organic solvent of 50% ~ 80%, 1.5% ~ 20% nano lubricating filler, the dispersion agent of 0.1% ~ 10%, the defoamer of 0.1% ~ 5%.
2. according to the oil casing threaded composite nano-coating of one according to claim 1, it is characterized in that, described film-forming resin is the one or several arbitrarily in resol, vibrin, Synolac, unsaturated polyester, aminoresin, acrylic resin, aldehyde resin, epoxy resin, urethane resin and synthetic resins.
3. according to the oil casing threaded composite nano-coating of one according to claim 1, it is characterized in that, described organic solvent is the one or several arbitrarily in based organic solvent, alcohol organic solvent, ether organic solvent or organic solvent of ketone.
4. according to the oil casing threaded composite nano-coating of one according to claim 1, it is characterized in that, described nano lubricating filler comprises the organic oil pad of nanometer and nano inorganic oil pad.
5. according to the oil casing threaded composite nano-coating of one according to claim 4, it is characterized in that, the organic slip coating of described nanometer is nanometer polytetrafluoroethylcomposite, and its particle diameter is 20 ~ 800nm, and mass percent is 0.5% ~ 5%.
6. according to the oil casing threaded composite nano-coating of one according to claim 4, it is characterized in that, described nano inorganic slip coating is the one or several arbitrarily in nano molybdenum disulfide, nanmeter antimong trioxide, nanometer silicon carbide, nano-graphite etc., and its particle diameter is 20 ~ 500nm; Nano inorganic slip coating mass percent is 1% ~ 15%.
7. a preparation method for oil casing threaded composite nano-coating, is characterized in that, comprises the following steps:
Step one, by nano lubricating filler, dispersion agent, mixes; Step 2, grinds said mixture and organic solvent according to 1 ~ 30 times of ratio, mixes; Step 3, adds the film-forming resin that mass percent is 5% ~ 25%, adds the defoamer of mass percent 0.05% ~ 2.5%, mix; Step 4, continuing to add organic solvent to mass percent is 50% ~ 80%, adds the defoamer of mass percent 0.05% ~ 2.5%, mixes; Step 5, by the coating sealed storage configured.
8. a using method for oil casing threaded composite nano-coating, is characterized in that, comprises the following steps: step one, and oil casing threaded place carries out pre-treatment, comprises decontamination, degreasing, washing, pickling and sandblasting or phosphatization; Step 2, through step one, oil casing threaded surfaceness will reach Ra5 μm ~ Ra10 μm; Step 3, by the coating application mixed or be sprayed at thread surface, coat-thickness is 5 μm ~ 20 μm; Step 4, at room temperature places 2h ~ 48h consolidation by coating.
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| CN105062343A (en) * | 2015-08-18 | 2015-11-18 | 兰州空间技术物理研究所 | Phosphating or bonding solid lubrication composite paint and preparation method thereof |
| CN105670449A (en) * | 2016-03-16 | 2016-06-15 | 安徽海德石油化工有限公司 | High-sulphur and high-acid crude oil distillation column inner wall anticorrosive paint |
| CN105694634A (en) * | 2016-04-25 | 2016-06-22 | 西安科技大学 | Anti-friction coating for petroleum drilling rod and production method and application of anti-friction coating |
| CN106736265A (en) * | 2016-11-25 | 2017-05-31 | 鑫鹏源智能装备集团有限公司 | A kind of preparation method of titanium alloy oil well pipe |
| CN107057493A (en) * | 2017-01-04 | 2017-08-18 | 南京工程学院 | A kind of surface hydrophobicity processing method of deep-sea oil recovery hardware |
| CN107286839A (en) * | 2016-03-30 | 2017-10-24 | 宝山钢铁股份有限公司 | Anti- thread gluing solid lubricating coating and preparation method thereof and painting method |
| CN109054951A (en) * | 2018-09-06 | 2018-12-21 | 武汉材料保护研究所有限公司 | A kind of stamping processing solid lubricant film and preparation method thereof of aluminum alloy plate materials |
| CN109135494A (en) * | 2018-07-20 | 2019-01-04 | 东华大学 | A kind of modified graphene composite Nano coating and its preparation method and application |
| CN110527395A (en) * | 2019-09-17 | 2019-12-03 | 西安康普威能源技术有限公司 | A kind of wear-resistant paint and the preparation method and application thereof |
| CN110776804A (en) * | 2019-10-15 | 2020-02-11 | 泰州市罡杨橡塑有限公司 | Self-lubricating high-molecular polymer nano composite coating and preparation process thereof |
| CN111764842A (en) * | 2020-06-11 | 2020-10-13 | 上海海隆石油管材研究所 | Environment-friendly process for surface treatment of drilling tool joint |
| CN111995925A (en) * | 2020-08-12 | 2020-11-27 | 东风商用车有限公司 | Anticorrosion and anti-loose treatment method for surface coating of fastening connection of metal piece |
| CN112552795A (en) * | 2020-12-10 | 2021-03-26 | 中国石油天然气股份有限公司 | Urushiol titanium anticorrosive paint for petroleum casing pipe and manufacturing method thereof |
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