CN204024500U - The anticorrosion rod-taper of a kind of heat resistant and wear resistant - Google Patents
The anticorrosion rod-taper of a kind of heat resistant and wear resistant Download PDFInfo
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- CN204024500U CN204024500U CN201420309634.0U CN201420309634U CN204024500U CN 204024500 U CN204024500 U CN 204024500U CN 201420309634 U CN201420309634 U CN 201420309634U CN 204024500 U CN204024500 U CN 204024500U
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- sucker rod
- heat resistant
- wear resistant
- rod
- resistant
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Abstract
The utility model discloses the anticorrosion rod-taper of a kind of heat resistant and wear resistant, sucker rod outer circumference surface is provided with heat resistant and wear resistant anticorrosive coat, described heat resistant and wear resistant anticorrosive coat is polyimide material, between described sucker rod and described polyimides by coupling agent and adhesive bonds, it is high that it has adhesive strength, be not easy to peel off, non-scaling is wax deposition not, can tolerate the high temperature of 200 ℃～300 ℃, and can ensure long-term use, can significantly reduce the possibility of side-abrasion of rod string under hot conditions, improve the application life of sucker rod.
Description
Technical field
The utility model relates to oil field operation technical field and petroleum machinery field, particularly metal sucker rod surface refractory wear-and corrosion-resistant technology, and the utility model relates to the anticorrosion rod-taper of a kind of heat resistant and wear resistant.
Background technology
At present, the oil production equipment that each oil field is used at home still be take beam pumping unit as main, sucker rod is one of vitals of beam pumping unit, in making the process of deflecting well oil withdrawal, sucker rod faces serious corrosion and eccentric wear problem, especially adopt in steam-heated high temperature inclined shaft, sucker rod corrosion resistance and anti-wear performance of (200～300 ℃) under hot conditions is to improve the high-temperature oil well sucker rod key index in application life.Traditional handicraft sucker rod electroplating nickel on surface improves Corrosion Protection, but unavoidably has sand holes in electroless nickel layer, and sand holes position can be aggravated corrosion and be caused local failure.
The sucker rod that CN201110348506.8 is equipped with ultra-high molecular weight polyethylene topping will have the Polyethylene with Ultra High Molecular Weight tubing of shape memory function; be enclosed within on sucker rod and it is heated; described tubing recovers original form under thermostimulation, makes sucker rod have ultra-high molecular weight polyethylene topping.Polymer closed anti-corrosion abrasion-proof pumping rod is at its outer wall, to carry out macromolecule sealing again on the basis of tungsten alloy sucker rod, and this product is being had under the performance condition of tungsten alloy sucker rod, then carries out the macromolecule sealing processing of an anticorrosion antiwear.It is the material of main body that macromolecule closed material generally adopts epoxy resin, is easy to split away off from sucker rod in use procedure, affects the service property (quality) of sucker rod.Ultra-high molecular weight polyethylene topping and sucker rod are connected in sucker rod external surface by physical action, easily in gap, form sepage, cause local corrosion.
Utility model content
In order to solve that sucker rod and anticorrosive coat in prior art form that sepage occurs in gap and the problem that causes local corrosion, the utility model provides a kind of heat resistant and wear resistant anticorrosion rod-taper, it is high that it has adhesive strength, be not easy to peel off, non-scaling is wax deposition not, can significantly reduce the possibility of side-abrasion of rod string, improve the application life of sucker rod.
Described technical scheme is as follows:
The utility model provides a kind of heat resistant and wear resistant anticorrosion rod-taper on the one hand, sucker rod outer circumference surface is provided with heat resistant and wear resistant anticorrosive coat, described heat resistant and wear resistant anticorrosive coat is polyimide material, between described sucker rod and described polyimides by coupling agent and adhesive bonds.
Described polyimides is a kind of in polypyromelliticimide, fluorine acid anhydride type polyimides, ketone acid anhydride type polyimides, NA base capped polyimides, acetenyl capped polyimides, polybenzimidazoles polyimides.
Described heat resistant and wear resistant anticorrosive coat thickness is 0.3mm-3mm.
Described coupling cementing agent is (RO)
3siCH
2cH
2cH
2oR ', wherein:
On the other hand, the utility model also provides a kind of preparation method of heat resistant and wear resistant antisepsis composite material sucker rod, comprises the steps:
S1, removal metal sucker rod surface and oil contaminant, rusty stain, and clean up;
S2, metal sucker rod surface uniform brushing coupling agent, dry rear adhesive coating, dries;
S3, polyimide solution is coated in to sucker rod surface, while rotate solvent flashing; After solvent is evaporated completely entirely substantially, apply next strata imide solution, carry out successively the coating of multilayer polyimide solution, until reach the thickness needing, be heating and curing, obtain.
Described step S1 is: blasting treatment is carried out in metal sucker rod surface, after removal surface and oil contaminant, rusty stain, adopt organic solvent that sucker rod surface clean is clean.
Described organic solvent is alcohol or acetone.
Described step S2 is: adopt coupling agent cementing agent (RO)
3siCH
2cH
2cH
2the alcoholic solution process metal surfaces of OR ', applies TPI-20 bonding adhesive after drying solvent.
Being heating and curing in described step S3 is by coated sucker rod precuring 3-4 hour under 180-200 ℃ of condition in heating furnace, adjusts the temperature of heating furnace to 300-320 ℃, is incubated 2-3 hour to polyimide curing; The temperature of adjusting heating furnace is post processing 5-8 hour under 150-180 ℃ of condition, post processing 16-20 hour under 300-350 ℃ of condition, and post processing 2-5 hour under 350-380 ℃ of condition, obtains.
The solvent of the polyimide solution in described step S3 is a kind of in fluorine acid anhydride type polyimide solvent, ketone acid anhydride type polyimide solvent, the polyimide solution of NA end-blocking and the polyimide solvent of acetenyl end-blocking; Wherein fluorine acid anhydride type polyimide solvent is the mixture of METHYLPYRROLIDONE and ethanol, ketone acid anhydride type polyimide solvent is acetone, the polyimide solution of NA end-blocking is diphenylmethanone tetrabasic carboxylic acid diethylester and 4, the mixture of 4 ' MDA 2:3, the polyimide solvent of acetenyl end-blocking is 1-METHYLPYRROLIDONE.
The beneficial effect that the technical scheme that the utility model provides is brought is:
(1) heat resistance is good
The anticorrosion rod-taper of heat resistant and wear resistant described in the utility model can tolerate the high temperature of 200 ℃～300 ℃, and can ensure long-term use, can significantly reduce the possibility of side-abrasion of rod string under hot conditions, improves the application life of sucker rod.
(2) anti-wear performance is good
The polyimides that the anticorrosion rod-taper of heat resistant and wear resistant described in the utility model is used also has good self-lubricating property, low frictional properties and difficult volatility under hot conditions, has excellent anti-wear performance.
(3) acid resistance dielectric behavior is good
The polyimides that the anticorrosion rod-taper of heat resistant and wear resistant described in the utility model is used is resistance to most of solvents, grease, resistance to ozone, the erosion of resistance to bacterium etc. under hot conditions, meets the instructions for use of oil well acid medium.
(4) good with metal sucker rod adhesive power
The polyimides topping forming by multistep processes due to the anticorrosion rod-taper of heat resistant and wear resistant described in the utility model; on interface, in 3 silicon hydroxyls of silane coupler hydrolysis generation, only have 1 and substrate surface bonding; remaining 2 silicon hydroxyls or with other silane in Si-OH condensation; or be free state; the generation of interfaces bonding of the Si-OH of free state and bonding adhesive; high with the adhesive strength of metal under hot conditions; adhesive power is good; be not easy to peel off with metal sucker rod, meet the instructions for use of high temperature well.Bonding adhesive Main Ingredients and Appearance is polyimides, with polyimides because of similar compatibility principle adhesive strength higher, so the adhesive strength between steel surface and polyimides can further effectively be guaranteed.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the sucker rod of coating polyimide heat resistant and wear resistant corrosion-inhibiting coating;
Fig. 2 is the activities schematic diagram of sucker rod surface coating polyimide heat resistant and wear resistant corrosion-inhibiting coating.
In figure:
1-metal sucker rod, 2-adhesive interface layer, 3-heat resistant and wear resistant anticorrosive coat, 4-spray gun, 5-expects chamber, 6-feed pipe, 7-nozzle.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, be the anticorrosion rod-taper structural representation of heat resistant and wear resistant provided by the utility model.Its structure comprises: it is 0.3mm-3mm heat resistant and wear resistant anticorrosive coat 3 that metal sucker rod 1, metal sucker rod 1 outer circumference surface are provided with thickness, between described sucker rod and described polyimides, by adhesive interface layer 2 bonding, described adhesive interface layer 2 comprises coupling agent and bonding adhesive.Metal sucker rod 1 wherein comprises main part and is positioned at the coupling part at two ends, main part wherein comprises that diameter is the round bar of 19mm, 20mm, 25mm, coupling part is the termination with connecting thread, between termination and round bar, be also provided with square bar, square bar is instrumental purpose district, and heat resistant and wear resistant anticorrosive coat 3 is wherein arranged in the main part of metal sucker rod 1.Wear-and corrosion-resistant layer 3 is polyimide material, and described wear-and corrosion-resistant layer thickness is 0.3mm-3mm.Wherein the THICKNESS CONTROL of adhesive interface layer 2 is between 100 μ m-600 μ m.
The activities schematic diagram that Figure 2 shows that metal sucker rod surface coating polyimide heat resistant and wear resistant corrosion-inhibiting coating, comprises the steps:
S1, blasting treatment is carried out in metal sucker rod 1 surface, remove adopt after surface and oil contaminant, rusty stain alcohol or acetone and other organic solvent sucker rod surface clean is clean;
The alcoholic solution process metal surfaces of S2, metal sucker rod surface uniform brushing coupling agent, dries rear adhesive coating, dries;
S3, polyimide solution enter in material chamber 5 by feed pipe 6, and then the nozzle 7 by spray gun 4 is coated in metal sucker rod surface, while rotate solvent flashing; After solvent is evaporated completely entirely substantially, apply next strata imide solution, carry out successively the coating of multilayer polyimide solution, until reach the thickness needing, be heating and curing, obtain.Wherein said being heating and curing is by coated sucker rod precuring 3-4 hour under 180-200 ℃ of condition in heating furnace, adjusts the temperature of heating furnace to 300-320 ℃, is incubated 2-3 hour to polyimide curing; The temperature of adjusting heating furnace is post processing 5-8 hour under 150-180 ℃ of condition, post processing 16-20 hour under 300-350 ℃ of condition, and post processing 2-5 hour under 350-380 ℃ of condition, obtains.
Unless otherwise indicated, the compound in present embodiment is all bought from market, is specially:
Polypyromelliticimide is purchased from Tianjin insulating material factory, and the trade mark is TJ1050;
Fluorine acid anhydride type polyimides is purchased from du pont company, trade mark NR-150;
Ketone acid anhydride type polyimides is purchased from About Monsanto Chemicals, and the trade mark is skybond702;
NA base capped polyimides is purchased from the chemistry PMR15 of institute of Chinese Academy of Sciences II type;
Acetenyl capped polyimides is purchased from United States Gulf petrochemistry company, and the trade mark is HR650;
Coupling agent (RO)
3siCH
2cH
2cH
2oR ' is purchased from Nanjing University chemical plant, and the trade mark is south large-42;
Polyimides adhesive is purchased from Rui Huatai film Co., Ltd, and the trade mark is TPI-20.
Embodiment 1
S1, adopt the 100 object grains of sand to adopt sand-blasting machines to carry out blasting treatment on metal sucker rod surface, adopt alcohol or acetone to remove sucker rod surface contaminants;
The even paint metals sucker rod of alcohol (wherein the mass ratio of coupling agent and alcohol is 2:98) the solution surface of S2, metal sucker rod surface uniform brushing coupling agent, after drying solvent, coating polyimide bonding adhesive TPI20 carries out after-treatment to metal sucker rod, dry solvent, dry rear bonding adhesive thickness and reach 500 μ m.
S3, fluorine acid anhydride type polyimides protective coating layered coated is surperficial at the metal sucker rod of handling well, the metal sucker rod that rotation is handled well on slewing, applies 0.25mm fluorine acid anhydride type polyimide solution, while rotate solvent flashing on its surface; After solvent is evaporated completely entirely substantially, apply lower one deck fluorine acid anhydride type polyimide solution, every one deck coating thickness is 0.25mm, carries out successively the coating of four layers of fluorine acid anhydride type polyimide solution, until reach the thickness of 1.0mm.
By the sucker rod that has applied fluorine acid anhydride type polyimide coating precuring 3 hours under 200 ℃ of conditions in heating furnace, adjust the temperature to 300 ℃ of heating furnace, be incubated 2 hours to fluorine acid anhydride type polyimide curing; The temperature of adjusting heating furnace is post processing 5 hours under 150 ℃ of conditions, and under 300 ℃ of conditions, post processing is 16 hours, and under 350 ℃ of conditions, post processing is 2 hours, is finished product.
Embodiment 2
S1, adopt the 100 object grains of sand to adopt sand-blasting machines to carry out blasting treatment on metal sucker rod surface, adopt alcohol or acetone to remove sucker rod surface contaminants;
The even paint metals sucker rod of the alcoholic solution surface of S2, large 42 coupling agents 3% in metal sucker rod surface uniform brushing south, after drying solvent, coating polyimide bonding adhesive TPI-20 carries out after-treatment to metal sucker rod, dry solvent, the thickness of bonding adhesive reaches 400 μ m.
S3, ketone acid anhydride type polyimides protective coating layered coated is surperficial at the metal sucker rod of handling well, the metal sucker rod that rotation is handled well on slewing, applies 3mm ketone acid anhydride type polyimide solution, while rotate solvent flashing on its surface; After solvent is evaporated completely entirely substantially, apply lower one deck ketone acid anhydride type polyimide solution, every one deck coating thickness is 0.5mm, carries out successively the coating of multilayer ketone acid anhydride type polyimide solution, until reach the thickness of 1.5mm.
By the sucker rod that has applied ketone acid anhydride type polyimide coating precuring 4 hours under 180 ℃ of conditions in heating furnace, adjust the temperature to 320 ℃ of heating furnace, be incubated 3 hours to ketone acid anhydride type polyimide curing; The temperature of adjusting heating furnace is post processing 8 hours under 180 ℃ of conditions, and under 350 ℃ of conditions, post processing is 20 hours, and under 380 ℃ of conditions, post processing is 5 hours, is finished product.
Embodiment 3
S1, adopt the 100 object grains of sand to adopt sand-blasting machines to carry out blasting treatment on metal sucker rod surface, adopt alcohol or acetone to remove sucker rod surface contaminants;
S2, adopt the even paint metals sucker rod of the 4% alcoholic solution surface of large 42 coupling agents in polyimides south, dry solvent after coating polyimide bonding adhesive TPI-20 metal sucker rod is carried out to after-treatment, dry solvent, bonding adhesive thickness reaches 300 μ m.
S3, NA base capped polyimides protective coating layered coated is surperficial at the metal sucker rod of handling well, the metal sucker rod that rotation is handled well on slewing, applies 1mmNA base capped polyimides solution, while rotate solvent flashing on its surface; After solvent is evaporated completely entirely substantially, apply lower one deck NA base capped polyimides solution, every one deck coating thickness is 0.25mm, carries out successively the coating of multilayer NA base capped polyimides solution, until reach the thickness of 2.0mm.
By the sucker rod that has applied NA base capped polyimides coating precuring 3.5 hours under 190 ℃ of conditions in heating furnace, adjust the temperature to 310 ℃ of heating furnace, be incubated 2 hours curing to NA base capped polyimides; The temperature of adjusting heating furnace is post processing 6 hours under 170 ℃ of conditions, and under 320 ℃ of conditions, post processing is 18 hours, and under 370 ℃ of conditions, post processing is 4 hours, is finished product.
Embodiment 4
In the present embodiment, the preparation method of the anticorrosion rod-taper of heat resistant and wear resistant is with embodiment 3, and wherein polyimide material is acetenyl capped polyimides, and bonding adhesive thickness is 200 μ m, and wherein the thickness of heat resistant and wear resistant anticorrosive coat is 2.5mm.
Embodiment 5
In the present embodiment, the preparation method of the anticorrosion rod-taper of heat resistant and wear resistant is with embodiment 3, and wherein polyimide material is polypyromelliticimide, and bonding adhesive thickness is 600 μ m, and wherein the thickness of heat resistant and wear resistant anticorrosive coat is 0.3mm.
Embodiment 6
In the present embodiment, the preparation method of the anticorrosion rod-taper of heat resistant and wear resistant is with embodiment 3, and wherein polyimide material is polybenzimidazoles polyimides, and bonding adhesive thickness is 100 μ m, and wherein the thickness of heat resistant and wear resistant anticorrosive coat is 3.0mm.
Certainly, the bonding adhesive in above-described embodiment also can be used a kind of in fluorine acid anhydride type polyimides adhesive, ketone acid anhydride type polyimides adhesive, NA base capped polyimides bonding adhesive, acetenyl capped polyimides bonding adhesive.As mode preferably, it is preferably corresponding one by one with polyimides when described bonding adhesive is used, be that fluorine acid anhydride type polyimides and fluorine acid anhydride type polyimides adhesive are used in conjunction with, ketone acid anhydride type polyimides and ketone acid anhydride type polyimides adhesive are used in conjunction with, NA base capped polyimides and NA base capped polyimides bonding adhesive are used in conjunction with, and acetenyl capped polyimides acetenyl capped polyimides bonding adhesive is used in conjunction with.
The anticorrosion rod-taper test data of heat resistant and wear resistant of table 1 embodiment 1-6.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the anticorrosion rod-taper of heat resistant and wear resistant, sucker rod outer circumference surface is provided with heat resistant and wear resistant anticorrosive coat, it is characterized in that: described heat resistant and wear resistant anticorrosive coat is polyimide material layer, between described sucker rod and described polyimides, by coupling agent and adhesive layer, bond.
2. the anticorrosion rod-taper of a kind of heat resistant and wear resistant according to claim 1, is characterized in that: described polyimide layer is a kind of in polypyromelliticimide layer, fluorine acid anhydride type polyimide layer, ketone acid anhydride type polyimide layer, NA base capped polyimides layer, acetenyl capped polyimides layer, polybenzimidazoles polyimide layer.
3. the anticorrosion rod-taper of a kind of heat resistant and wear resistant according to claim 1 and 2, is characterized in that: described heat resistant and wear resistant anticorrosive coat thickness is 0.3mm-3mm.
4. the anticorrosion rod-taper of a kind of heat resistant and wear resistant according to claim 3, is characterized in that: described coupling adhesive layer is (RO)
3siCH
2cH
2cH
2oR ', wherein:
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| CN201420309634.0U CN204024500U (en) | 2014-06-11 | 2014-06-11 | The anticorrosion rod-taper of a kind of heat resistant and wear resistant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074470A (en) * | 2014-06-11 | 2014-10-01 | 济南琪玙复合材料技术开发有限公司 | High-temperature-resistant wear-resistant anti-corrosive composite sucker rod and preparing method |
| CN112227965A (en) * | 2020-12-09 | 2021-01-15 | 东营市金亿来石油机械有限公司 | High-temperature-resistant coated sucker rod |
-
2014
- 2014-06-11 CN CN201420309634.0U patent/CN204024500U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074470A (en) * | 2014-06-11 | 2014-10-01 | 济南琪玙复合材料技术开发有限公司 | High-temperature-resistant wear-resistant anti-corrosive composite sucker rod and preparing method |
| CN104074470B (en) * | 2014-06-11 | 2017-02-15 | 济南琪玙复合材料技术开发有限公司 | High-temperature-resistant wear-resistant anti-corrosive composite material sucker rod and preparing method |
| CN112227965A (en) * | 2020-12-09 | 2021-01-15 | 东营市金亿来石油机械有限公司 | High-temperature-resistant coated sucker rod |
| CN112227965B (en) * | 2020-12-09 | 2021-04-06 | 东营市金亿来石油机械有限公司 | High-temperature-resistant coated sucker rod |
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