CN109135501A - A kind of eccentric abrasion prevention anticorrosive powder coating and preparation method thereof - Google Patents
A kind of eccentric abrasion prevention anticorrosive powder coating and preparation method thereof Download PDFInfo
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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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- 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
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- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0881—Titanium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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Abstract
The present invention relates to a kind of powder coating more particularly to a kind of eccentric abrasion prevention anticorrosive powder coatings.In order to improve oil field tube inner wall anticorrosive paint eccentric abrasion prevention, the present invention provides a kind of eccentric abrasion prevention anticorrosive powder coatings.The coating includes following components: resin 54.5-68.1%, curing agent 9.5-14.8%, self-control titanium maxter alloy nano powder 10-15%, self-control modified abrasion resistant anti-friction filler 10-15%, auxiliary agent 0.8%；The percentage is mass percent.The resin is selected from phenolic resin modified epoxy resin；The molecular weight ranges of the epoxy resin are 2000-2500.The problems such as the coating solves long-standing problem oil field oil pick-up tube, well pipe, and eccentric wear, burn into high temperature, fouling, service life be short.The oil pipe that tube inner wall coats the coating improves 3-5 times than original oil pipe service life.
Description
Technical field
The present invention relates to a kind of powder coatings more particularly to a kind of eccentric abrasion prevention anticorrosive powder coating and preparation method thereof.
Background technique
With deepening continuously for oil field development, production fluid composite water cut is gradually increasing, and most of oil field contains into height
Water development period, the media such as chloride ion content big, carbon dioxide, hydrogen sulfide, sulfate reducing bacteria largely exist, the corruption of down-hole oil tube
Erosion problem is on the rise.In oil well, due to well depth structure, sucker rod is influenced by friction in down stroke, and sucker rod is to tube inner wall
Friction, serious wear, corrosion and eccentric wear interaction, cause oil pipe largely scrap.
In water injection well, the fouling of water injection string, seriously corroded affect proper testing and the allotment of water injection well, shorten
Tubing string working life, eccentric wear, the etching problem of down-hole oil tube, which have become, restricts the bottleneck that oil field production increases benefit with cost declining.
Anti-corrosion, eccentric wear-proof process used by the prior art are as follows:
1, the anti-corrosion of injection well tubing:
In order to improve anti-corrosion, the antiscale ability of water injection well, Shengli Oil Field had mainly answered frp lining, nitriding, epoxy in recent years
The techniques such as toner, stainless steel inner lining.
2, oil well pipe anti-corrosion, eccentric abrasion prevention:
Eccentric abrasion prevention technology passes through the experiment and application of decades, major technique are as follows: liner HDPE, glass fiber reinforced plastic oil pipe etc..
Above-mentioned technique all plays positive effect in field in oil field anti-corrosion, eccentric abrasion prevention to some extent.
Summary of the invention
In order to improve oil field tube inner wall anticorrosive paint eccentric abrasion prevention, the present invention provides a kind of eccentric abrasion prevention antiseptins
Last coating, the coating is by being added to the rare earth nano titanium molybdenum made titanium maxter alloy nano powder by oneself, make modified abrasion resistant anti-friction filler by oneself
Eccentric abrasion prevention anti-corrosive powder paint forms one layer of smooth, uniform, fine and close protective layer in tube inner wall.The coating solves for a long time
Perplex oil field oil pick-up tube, well pipe, the problems such as eccentric wear, burn into high temperature, fouling, service life be short.Tube inner wall coats the coating
Oil pipe than original oil pipe service life improve 3-5 times.
Originally reach object above, the technical solution used in the present invention is as follows:
The present invention provides a kind of eccentric abrasion prevention anticorrosive powder coating, and the coating includes following components: resin 54.5-68.1%, solidification
Agent 9.5-14.8%, self-control titanium maxter alloy nano powder 10-15%, self-control modified abrasion resistant anti-friction filler 10-15%, auxiliary agent 0.8%；
The percentage is mass percent.
Further, the coating includes following components: resin 59.4%, curing agent 13.6%, self-control titanium maxter alloy nanometer
Powder 13.2%, self-control modified abrasion resistant anti-friction filler 13%, auxiliary agent 0.8%；The percentage is mass percent.
The auxiliary agent include hydrophober, anticaking agent (fluffy powder or raising agent), degasser, defoaming agent, dispersing agent, resist it is quiet
Electric agent, the one kind for being charged by friction auxiliary agent, promotor, powder utilization modifying agent, anti-scratch agent, anti-sagging agent, plasticizer, antioxidant
Or it is a variety of.
The auxiliary agent is selected from powdered auxiliary agent.
Further, the resin is selected from phenolic resin modified epoxy resin；The epoxy resin and phenolic resin
Mass ratio is 1:0.1-0.2；The molecular weight ranges of the epoxy resin are 2000-2500.
Further, the curing agent is latent curing agent.
Further, the latent curing agent is selected from dicyanodiamine, dicyanodiamine modified imidazole, cyanate modified miaow
Azoles, modified with organic acids imidazoles, metal inorganic salt modified imidazole, anhydride modified imidazoles, organic hydrazides, lewis acid-amine complexing
One of object, acetylacetone,2,4-pentanedione transition metal complex.
Further, the self-control titanium maxter alloy nano powder include: titaniferous coarse powder 50-55%, the 37-42% of coarse powder containing molybdenum,
Dispersing agent 3%, bonding agent 5%；The percentage is mass percent；The self-control titanium maxter alloy nano powder passes through mechanochemistry
Method preparation, steps are as follows:
1) it premixes: raw material meal being added in ball mill by formula ratio and is mixed；
2) preliminary grinding: for filling with inert gas in ball grinder, dry grinding makes the abundant ball milling of material, keeps inert gas environment, preliminary thin
Change；
3) high-energy ball milling: under inert gas environment, improving revolving speed and further refine material, carries out the bonding agent of itself and addition anti-
It answers；High-energy ball milling obtains slurry；
4) powder processed: pulverizing process includes two steps: a, dividing dispersing agent and solid powder in slurry using supercentrifuge
From；B, solid powder is dried under inert gas protection or under certain vacuum degree；Resulting dried object is that titanium molybdenum closes
Jenner's rice flour.
The inert gas is nitrogen.
Further, the self-control titanium maxter alloy nano powder netted connection status spherical in shape, average grain diameter is in 18 ± 2nm.
Further, the self-control modified abrasion resistant anti-friction filler selects metal oxide as abrasive aggregates, wear-resistant ceramic
Powder is as filler material, orientation and omnidirectional enhancing ceramic fibre powder as internal force reinforcement, spherolith ink powder, molybdenum powder conduct
Surface smoothing preparation；The metal oxide includes magnesia 15-20%, aluminium oxide 20-25%, silica 30-35%, zirconium oxide
25-30%；The raw material premix are closed；The percentage is mass percent.
Further, the coating is formed by curing by the coating of rare earth nano titanium molybdenum eccentric abrasion prevention anti-corrosive powder paint；It is described dilute
The preparation step of native nano-titanium molybdenum eccentric abrasion prevention anti-corrosive powder paint is as follows: raw material weighing, raw material premix conjunction, melting extrusion, cooling
It is ground up, sieved.
Further, the coating is coated on the inner wall of oil pipe；The construction procedure of the coating is as follows: former pipe processing, original
Pipe preheating, coating coating, paint solidification；The former pipe handles and manages and protects silk cleaning including original, former pipe pre-processes, high temperature is cleared up,
Derusting by sandblasting, demagnetization processing, primary purging, thread protector make anchor, secondary purging；The original pipe preheating is heating in medium frequency；The painting
Material coating is using spraying；The paint solidification is rotation solidification.
Further, the coating coating includes the tube body preheating and coating spraying of former pipe；The tube body preheating temperature is
220-260℃；The tube body Yu Re Shi Jian≤3h；Du≤600 Gan Mo Hou of the uniform film thickness of the coating, the coating are micro-
Rice；The solidification temperature of the coating is 190-230 DEG C；The curing of coatings Shi Jian≤1h.
Further, the wearability of the coating is tested according to the method for standard SY/T6717-2016 Appendix D, reaches 4.9
L/μm。
The coating is smooth, uniform, fine and close protective layer.
Eccentric abrasion prevention anticorrosive powder coating provided by the invention has the advantage that
1) there is excellent Corrosion Protection；
2) there is good adhesive force, for a long time using not falling off in the humid tropical condition of underground；
3) there is unique self-lubricating function, shield to opposite grinding part；
4) friction in down stroke reduces, and has energy-saving effect；
5) thickness of dry film of coating can be controlled in 800-1000 μm, can satisfy latus rectum requirement；
6) pipe nipple can be buckled or be restructured to the external screw thread breakage of oil pipe by vehicle again.
Detailed description of the invention
The preparation process of Fig. 1 self-control titanium maxter alloy nano powder provided by the invention;
The curing mechanism of Fig. 2 epoxy resin of the present invention.
Specific embodiment
In order to be easier to understand eccentric abrasion prevention anticorrosive powder coating provided by the present invention, below in conjunction with Fig. 1-2 of the invention
And specific embodiment is described below in detail:
Wear-resistant paint is based on general organic resin, and if do not considered, any special measures such as nano-filled, cured film are integrally excessively high
Hardness means that glass transition temperature is higher, show that the degree of cross linking is excessively high or cross-linked network in lack sufficiently long soft segment,
It is easy to cause brittleness to increase, under external force shearing friction, stress is be easy to cause to concentrate, stress can not be transmitted by surrounding structure to be divided
It dissipates, the brittleness that film layer stress point occurs collapses de-.On the contrary, ignoring crosslink density if pursuing the flexibility of cured film simply, being easy to lead
It causes the mechanical strength of cross-linked network itself inadequate, under external force friction shearing, the cross-linked network of dilute sulphur may be broken, wearability
It is same bad.From the point of view of dialectical, cured film be preferably present hardness with it is flexible well balanced, usually can be regarded as height
The balance of crosslink density and high-flexibility.Cured film (the ideal crosslinking points relatively uniform for microcosmic crosslinking or microstructure
Equidistant situation), both are seemed conflicting performance almost irregular system of coordinating to get up cannot obtain height simultaneously
Hardness, high-flexibility, then, cross-linking system is made the structure of Microinhomogeneity, namely what is often called microphase-separated, existing high crosslinking
" the hard microfacies " of degree, and have the crosslinking " soft microfacies " for meeting high-flexibility.Pass through chemistry key connection between phase and phase.It is cut in external force
It cuts, if " soft microfacies " stress, " hard microfacies " dispersive stress can be crosslinked by neighbouring height, soft chain is protected not to be pulled off: if
It is " hard microfacies " stress, stress transfer can also be distributed in neighbouring " soft microfacies ".In short, this microphase-separated can be preferable
Ground dispersive stress improves wearability.
By this principle, using epoxy and phenolic resin as film forming matrix resin, both resins not only have excellent
Different heat resistance, corrosion resistance, epoxy resin as soft phase, phenolic resin as hard phase, have it is certain it is hard it is soft alternate, hand over
It is high to join density, soft microfacies is abundant, and inorganic particulate and organic resin are the completely different two-phases of performance, to give full play to inorganic fill out
Expect reinforcement in coating, abrasion resistant effect, the basic problem for needing to solve includes: the wetting infiltration of inorganic particulate, stably dispersing,
The firm connection of particle and paint film matrix, these three problems stress face difference, but tight association is special modified by filling
And the high hard packing of the resistance to compression such as magnesia with certain partial size, aluminium oxide, silica, zirconium oxide (include but be not limited only to) etc. are made
For bone point, its wear-resisting anti-friction performance can be greatly improved.
The present invention at home and abroad prepares tissue using mechanochemical reaction high efficiency, low cost for the first time and composition is evenly distributed
Titanium maxter alloy nano powder, and it is made to have the high activity in conjunction with macromolecule organic phase, become special excellent modified paint agent.
Through SEM, the detection such as TEM, XRD, laser fineness gage, it was demonstrated that titanium maxter alloy nanometer powder netted connection status spherical in shape is put down
Equal partial size is in 18nm or so.The excellent corrosion resistance that there are the metals such as titanium, molybdenum other elements to hardly match, high strength anti-corrosion titanium alloy exist
In most of media in addition to having with anti-corrosion grade similar in pure titanium, also have the following characteristics that
1. specific strength (tensile strength/density) is high in -100 to 300 DEG C of temperature ranges, tensile strength is up to 1000Mpa or more；
2. controlling by composition appropriate, hardness is even higher up to HV300 or more；
3. heat-resist；
4. resistance to low temperature is good.
In addition, super anti-corrosion titanium maxter alloy also has in high temperature and special marine environment and the stronger occasion of corrosivity
Good corrosion resisting property.It is adjusted by the composition of adaptation, can also make the alloy that there is excellent wear-resisting property.
Skin effect, small-size effect, quantum size effect and the macroscopic quantum tunnel that nanoparticle has by its characteristic
The special natures such as channel effect, show huge superiority in new material exploitation: this nano paint modifying agent is because of small size
Effect keeps the surface of coating more uniform than traditional modifying agent, does not generate surface defect, and due to nanoparticle and basal body interface
It interacts, generates infiltration and filling effect, enhance the interface cohesion of coated substrate, be allowed to be linked to be entirety, it can be effective gram
Take traditional coating compactness, the defects of poor adhesive force, the barrier of film, chemical resistance, thermal stability and resist low inoxidizability
The performances such as temperature increase substantially, and prevent corrosive medium from permeating, and assign coating excellent anticorrosion comprehensive performance；In addition, nanometer
The huge interface of grain has very high surface energy, applies the mechanical properties such as the tensile strength, hardness, wearability of coating more routinely
Material significantly improves, and because of the migration of interface disorder atom, shows good toughness and ductility.
In the embodiment of the present invention, the component proportion of titanium molybdenum nano powder is made by oneself are as follows: titanium coarse powder 52%, divides molybdenum coarse powder 40%
Powder 3%, bonding agent 5%；The percentage is mass percent.
The self-control titanium maxter alloy nano powder is prepared by mechanochemical reaction, and steps are as follows:
1) it premixes: raw material meal being added in ball mill by formula ratio and is mixed；
2) preliminary grinding: for filling with inert gas in ball grinder, dry grinding makes the abundant ball milling of material, keeps inert gas environment, preliminary thin
Change；
3) high-energy ball milling: under inert gas environment, improving revolving speed and further refine material, carries out the bonding agent of itself and addition anti-
It answers；High-energy ball milling obtains slurry；
4) powder processed: pulverizing process includes two steps: a, dividing dispersing agent and solid powder in slurry using supercentrifuge
From；B, solid powder is dried under inert gas protection or under certain vacuum degree；Resulting dried object is that titanium molybdenum closes
Jenner's rice flour.
The inert gas is nitrogen.
Make the component of modified abrasion resistant anti-friction filler by oneself are as follows: magnesia 10%, aluminium oxide 12%, silica 18%, zirconium oxide
15%；Wear-resistant ceramic powder 25%, ceramic fibre powder 10%, spherolith ink powder 5%, molybdenum powder 5%；The component is pre-mixed in proportion；
The percentage is mass percent.
The metal oxide is made pottery as abrasive aggregates, wear-resistant ceramic powder as filler material, orientation and omnidirectional enhancing
Porcelain fiber powder is as internal force reinforcement, spherolith ink powder, molybdenum powder as surface smoothing preparation.
The auxiliary agent includes hydrophober, anticaking agent (fluffy powder or raising agent), degasser, defoaming agent, powder utilization modification
Agent, anti-scratch agent it is one or more.
The auxiliary agent is selected from powdered auxiliary agent.
The resin is selected from phenolic resin modified epoxy resin；The mass ratio of the epoxy resin and phenolic resin is 1:
0.1-0.2；The molecular weight ranges of the epoxy resin are 2000-2500.
The curing agent is latent curing agent.
The latent curing agent is selected from dicyanodiamine, dicyanodiamine modified imidazole, cyanate modified imidazoles, organic acid and changes
Property imidazoles, metal inorganic salt modified imidazole, anhydride modified imidazoles, organic hydrazides, lewis acid-amine complex, acetylacetone,2,4-pentanedione
One of transition metal complex.
The preparation step of the rare earth nano titanium molybdenum eccentric abrasion prevention anti-corrosive powder paint is as follows: raw material weighing, raw material premix close,
Melting extrusion, cooling are ground up, sieved.
The coating is formed by curing by the coating of rare earth nano titanium molybdenum eccentric abrasion prevention anti-corrosive powder paint；The coating is coated on oil
The inner wall of pipe；The construction procedure of the coating is as follows: former pipe processing, former pipe preheating, coating coating, paint solidification；
The original pipe processing includes that original is managed and protected silk cleaning, former pipe pretreatment, high temperature cleaning, derusting by sandblasting, demagnetization processing, once blown
It sweeps, thread protector makes anchor, secondary purging；
The original pipe preheating is heating in medium frequency；
The coating coating is using spraying；
The paint solidification is rotation solidification.
The coating coating includes the tube body preheating and coating spraying of former pipe；The tube body preheating temperature is 220-260 DEG C；
The tube body Yu Re Shi Jian≤3h；The uniform film thickness of the coating, Du≤600 micron Gan Mo Hou of the coating；The coating
Solidification temperature be 190-230 DEG C；The curing of coatings Shi Jian≤1h.
The wearability for the coating that the construction method of the eccentric abrasion prevention anticorrosive powder coating is formed is according to standard SY/T6717-
The methods of 2016 Appendix D is tested, and reaches 4.9 L/ μm.
The coating is smooth, uniform, fine and close protective layer.
Embodiment 1:
Resin 59.4%, curing agent 13.6% make titanium maxter alloy nano powder 13.2% by oneself, make modified abrasion resistant anti-friction filler 13% by oneself, help
Agent 0.8%.
The resin uses phenolic resin modified epoxy resin (molecular weight 2000-2500)；Epoxy resin and phenolic aldehyde tree
The mass ratio 1:0.1 of rouge.
The curing agent uses dicyanodiamine.
The auxiliary agent includes organosilicon powder hydrophober 0.3%, LancoTM A1601 defoaming agent 0.2%, the oxidation of nanometer three
Two aluminium anticaking agents 0.3%.
Embodiment 2:
With embodiment 1, the mass ratio 1:0.2 of epoxy resin and phenolic resin；The curing agent uses anhydride modified imidazoles.
Embodiment 3:
With embodiment 1, resin 54.5%, curing agent 14.8% makes titanium maxter alloy nano powder 15% by oneself, and self-control modified abrasion resistant anti-friction is filled out
Material 14.9%.
Embodiment 4:
With embodiment 2, resin 68.1%, curing agent 11.1% makes titanium maxter alloy nano powder 10% by oneself, and self-control modified abrasion resistant anti-friction is filled out
Material 10%.
Embodiment 5:
With embodiment 1, resin 64.7%, curing agent 9.5% makes titanium maxter alloy nano powder 15% by oneself, makes modified abrasion resistant anti-friction filler by oneself
10%。
Embodiment 6:
With embodiment 2, resin 64.7%, curing agent 9.5% makes titanium maxter alloy nano powder 10% by oneself, makes modified abrasion resistant anti-friction filler by oneself
15%；The curing agent uses lewis acid-amine complex.
Comparative example 1:
With embodiment 1, titanium maxter alloy nano powder 0% is made by oneself, make modified abrasion resistant anti-friction filler 0% by oneself；Conventional packing 26.2%.
Coating performance detection method:
After completing according to the requirement test specimen of standard SY/T6717-2016, performance detection is carried out:
1 coating adhesion test: SY/T 6717-2016 Appendix B；
2 coating abrasion performances test: SY/T 6717-2016 Appendix D；
The detection of 3 resistant to chemical media, executes standard SY/T6717-2016.
According to above-mentioned detection method, the coating of each embodiment is detected, inspection result such as following table one.
One coating performance testing result of table
According to the testing result of above-mentioned table one it is found that embodiment 1-6 is compared with comparative example, wearability (knockout method) be can reach
4.9mg or more, comprehensive performance have very big improvement, achieve good beneficial effect.Further, the painting of embodiment 1-2
The wearability of layer is more preferable, and comprehensive performance is more excellent.
It should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to limit protection of the invention
Range.The equivalent changes and modifications that all contents according to the present invention are done, are encompassed by the scope of the patents of the invention.
Claims (10)
1. a kind of eccentric abrasion prevention anticorrosive powder coating, which is characterized in that the coating includes following components: resin 54.5-68.1%,
Curing agent 9.5-14.8%, self-control titanium maxter alloy nano powder 10-15%, self-control modified abrasion resistant anti-friction filler 10-15%, auxiliary agent
0.8%；The percentage is mass percent.
2. eccentric abrasion prevention anticorrosive powder coating according to claim 1, which is characterized in that the resin changes selected from phenolic resin
The epoxy resin of property；The mass ratio of the epoxy resin and phenolic resin is 1:0.1-0.2；The molecular weight model of the epoxy resin
It encloses for 2000-2500.
3. eccentric abrasion prevention anticorrosive powder coating according to claim 1, which is characterized in that the curing agent is latent curing
Agent.
4. folding eccentric abrasion prevention anticorrosive powder coating according to claim 1, which is characterized in that the self-control titanium maxter alloy is received
Rice flour includes: titaniferous coarse powder 50-55%, the 37-42% of coarse powder containing molybdenum, dispersing agent 3%, bonding agent 5%；The percentage is quality hundred
Score；The self-control titanium maxter alloy nano powder is prepared by mechanochemical reaction, and steps are as follows:
Premix: raw material meal is added in ball mill by formula ratio and is mixed；
Preliminary grinding: for filling with inert gas in ball grinder, dry grinding makes the abundant ball milling of material, keeps inert gas environment, preliminary to refine；
High-energy ball milling: under inert gas environment, improving revolving speed and further refine material, carries out the bonding agent of itself and addition anti-
It answers；High-energy ball milling obtains slurry；
Powder processed: pulverizing process includes two steps: a, separating dispersing agent and solid powder in slurry using supercentrifuge；
B, solid powder is dried under inert gas protection or under certain vacuum degree；Resulting dried object is that titanium maxter alloy is received
Rice flour.
5. eccentric abrasion prevention anticorrosive powder coating according to claim 4, which is characterized in that the self-control titanium maxter alloy nano powder
Netted connection status spherical in shape, average grain diameter is in 18 ± 2nm.
6. eccentric abrasion prevention anticorrosive powder coating according to claim 1, which is characterized in that the self-control modified abrasion resistant anti-friction is filled out
Material selects metal oxide as abrasive aggregates, wear-resistant ceramic powder as filler material, orientation and omnidirectional enhancing ceramic fibre
Powder is as internal force reinforcement, spherolith ink powder, molybdenum powder as surface smoothing preparation；The metal oxide includes magnesia 15-
20%, aluminium oxide 20-25%, silica 30-35%, zirconium oxide 25-30%；The raw material premix are closed；The percentage is quality
Percentage.
7. the preparation method of eccentric abrasion prevention anticorrosive powder coating described in -6 according to claim 1, which is characterized in that the coating by
The coating of rare earth nano titanium molybdenum eccentric abrasion prevention anti-corrosive powder paint is formed by curing；The rare earth nano titanium molybdenum eccentric abrasion prevention anti-corrosive powder paint
Preparation step it is as follows: raw material weighing, raw material premix conjunction, melting extrusion, cooling be ground up, sieved.
8. the construction method of eccentric abrasion prevention anticorrosive powder coating according to claim 7, which is characterized in that the coating coating
In the inner wall of oil pipe；The construction procedure of the coating is as follows: former pipe processing, former pipe preheating, coating coating, paint solidification；
The original pipe processing includes that original is managed and protected silk cleaning, former pipe pretreatment, high temperature cleaning, derusting by sandblasting, demagnetization processing, once blown
It sweeps, thread protector makes anchor, secondary purging；
The original pipe preheating is heating in medium frequency；
The coating coating is using spraying；
The paint solidification is rotation solidification.
9. the construction method of eccentric abrasion prevention anticorrosive powder coating according to claim 8, which is characterized in that the coating coating
Tube body preheating and coating spraying including former pipe；The tube body preheating temperature is 220-260 DEG C；The tube body Yu Re Shi Jian≤
3h；The uniform film thickness of the coating, Du≤600 micron Gan Mo Hou of the coating；The solidification temperature of the coating is 190-230
℃；The curing of coatings Shi Jian≤1h.
10. the coating that the construction method of eccentric abrasion prevention anticorrosive powder coating according to claim 8 or claim 9 is formed, feature exist
It is tested in the wearability of, the coating according to the method for standard SY/T6717-2016 Appendix D, reaches 4.9 L/ μm.
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