CN103075112B - Fibre reinforced composite anti-eccentric coiled rod as well as preparation device and preparation method thereof - Google Patents
Fibre reinforced composite anti-eccentric coiled rod as well as preparation device and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a fibre reinforced composite anti-eccentric coiled rod and a preparation device thereof. The technical scheme adopted by the invention is as follows: one or more sections of the external surface of a fibre-reinforced resin matrix composite rod body is coated with a thermoplastic wear layer; the rod body is made of one of fibreglass, carbon fibre and basalt fibre; and a resin matrix is one of epoxy resin, urethane resin and vinyl ester resin. A plastic extruder and a cooling device are arranged between a draw gear and a winding device, the plastic extruder is used for coating one thermoplastic wear layer on one or more sections of the surface of a molded sucker rod, and then the cooling device is used for performing cooling treatment, so that the fibre reinforced composite anti-eccentric coiled rod is formed. The invention has the following beneficial effects: the coiled rod has excellent anticorrosion and anti-eccentric performances; the quantity of joints is greatly reduced; the breakage probability and the piston effect are reduced; and in addition, the production efficiency is high, and the operation is simple and convenient.
Description
Technical field
The present invention relates to a kind of preparation method and device of petroleum industry oil production equipment, particularly the anti-eccentric wear coiled rod of a kind of fibre reinforced composites and preparation facilities and method.
Background technology
Because the Oil Reservoir Types of developing becomes increasingly complex, the continuous increase of well depth simultaneously and the continuous deterioration of well ore deposit environment, corrosion and eccentric wear problem become oil extraction in oil field technique problem demanding prompt solution.Because possess the corrosion resistant feature of high-strength light, so composite material sucker rod has started progressively to replace traditional metal sucker rod.The composite material sucker rod adopting at present mainly comprises glass fiber reinforced plastic oil pumping rod and the large class of carbon fibre reinforced composite coiled rod two.Glass fiber reinforced plastic oil pumping rod adopts the pultrude process one-shot forming preparation of glass-fiber reinforced thermo-setting resin, extensive use, but along with the reliability requirement of modern times oil recovery improves constantly, glass fiber reinforced plastic oil pumping rod can not meet the demands, mainly there is following problem, 1, the resistance to eccentric wear of sucker rod is bad; 2, fatigue strength is inadequate; 3, the equal fixed length of glass fiber reinforced plastic oil pumping rod, respectively there is a metal joint at two ends, between root and root, adopt the metal box cupling of metal pumping rod application to be connected, and due to complex structure, difficulty of processing is large, expensive.Two metal joints for each root glass fiber reinforced plastic oil pumping rod, the cost of these two metal joints is far above the cost of a glass fiber reinforced plastic body of rod; Compare with traditional metal sucker rod in addition, except shank portion has been changed material, other parts of whole rod string there is no change, traditional metal rod string joint is many, disconnected de-probability is high, and piston effect is obvious, and the serious problem of box cupling and oil pipe eccentric wear is not resolved.Chinese patent CN1417449 discloses a kind of preparation method of Anti-wear oil pumping rod, the method is the anti-abrading block of the material such as secondary injection molding nylon in type sucker rod body, reduce the clad material using, reduce continuously coated cost and process complexity, but the anti-abrading block size of its injection moulding is less,, often there is anti-abrading block and the body of rod and depart from the relatively independent body of rod that is distributed in, occurs " sugarcoated haws " phenomenon.In addition, its body of rod fixed length, can not solve the defects such as traditional metal rod connector is many, and break-off accident rate is large, and piston effect is large; And to install anti-bias abrading block on the less body of rod of size additional be to solve eccentric wear problem between metal joint and box cupling and oil pipe, and this is only the emphasis that sucker rod, pipe eccentric wear need to solve.CN101396874 discloses a kind of preparation method and device of anti-eccentric wear composite material sucker rod, its preparation method is on the in type composite material sucker rod body of rod, the anti-eccentric wear layer of the abrasion resistant fibrous continuous-winding forming spiral bar shapes such as the aramid fiber, High molecular weight polyethylene of resin adhesive liquid was flooded in utilization, to reach anti-eccentric wear effect.The anti-eccentric wear layer of its spiral bar shape, owing to being with abrasion resistant fibrous enhancing thermosetting resin, although therefore fiber has antiwear characteristic, forms after composite material with thermosetting resin, and its wear resistance decrease is a lot, and the life-span can not extend how many.Except it possesses the anti-eccentric wear layer of spiral bar shape, its shortcoming is the same with common glass fiber reinforced plastic oil pumping rod.Chinese patent CN1461870 discloses a kind of carbon fibre reinforced composite coiled rod and preparation method, employing carbon fiber is reinforcing material, and by transversely arranged aramid fiber or superhigh molecular weight polyethylene fibers bundle and longitudinally glass fiber to form integral coating compound, mainly solve and strengthen the horizontal interlaminar shear strength of sucker rod, thereby avoid sucker rod that the problem of longitudinal splitting occurs in oil well, the while has also been improved resistance to eccentric wear and the intensity of the body of rod.But this sucker rod adopt pultrusion, coated Integratively processing method (comprise put silk-resin pickup glue-clad coated-preformed-solidify-coil operation), clad is that fabric strengthens thermosetting resin, not only strengthened material cost, and the resistance to eccentric wear of fabric clad is not ideal enough.In addition, because this carbon fibre reinforced composite coiled rod cross sectional shape is rectangle or ellipse, and its thickness only has 3～5mm, when application specific equipment removes well operations, the material of retained part almost cannot be selected, and can only adopt two-piece type clamping, left and right directions cannot be spacing, is easy to occur the phenomenon that the body of rod deflects away from retained part.Therefore its special use go into the well implement retained part structure and developing material difficulty larger, become the technical bottleneck in the application of carbon fibre reinforced composite coiled rod, limited this product large-scale promotion application.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, the anti-eccentric wear coiled rod of a kind of fibre reinforced composites and preparation facilities and method are provided, take that to solve corrosion and the eccentric wear problem of oil extraction in oil field in producing be main purpose, prepare that corrosion-resistant and resistance to eccentric wear performance is good, joint is few, disconnectedly take off the sucker rod that probability is little, piston effect is little, operation is easy to use.
The anti-eccentric wear coiled rod of a kind of fibre reinforced composites, one section or several sections at the external surface of the fiber reinforced resin based composite material body of rod is covered with one deck thermoplastic wearing layer, described thermoplastic wearing layer is high density polyethylene (HDPE), acrylonitrile-butadiene-styrene, polyformaldehyde, nylon, polyphenylene oxide, polysulfones, a kind of in polytetrafluoroethylene (PTFE) or polyether-ether-ketone, the thickness of thermoplastic wearing layer is 1～10mm, the fiber that the described fiber reinforced resin based composite material body of rod adopts is glass fiber, carbon fiber or basalt fibre a kind of, the resin matrix adopting is epoxy resin, polyurethane resin or vinyl ester resin a kind of, the continuous length of the body of rod of making is 1～5000m.
The preparation facilities of the anti-eccentric wear coiled rod of a kind of fibre reinforced composites, comprise and put guide frame, pretreatment heating furnace, injector, injection molding, equipment for cooling die, pultrusion die, mold heating device, control section, rear solidifying heating furnice, draw-gear, coiler device forms injection pultrusion equipment, between the draw-gear of injection pultrusion equipment and coiler device, be provided with a plastic extruder and cooling unit, utilize plastic extruder at one section or surface attachment one deck thermoplastic wearing layer of several sections of the moulding oil pumping body of rod, then through apparatus for supercooling cooling processing, form the anti-eccentric wear coiled rod of fibre reinforced composites, in the bottom of injection molding, one or more adhesive pouring nozzles are housed, one or more vacuum nozzles are equipped with at top, the external vacuum tube of vacuum nozzle, and vacuum tube is connected with vacuum tank, described injector is passed through the adhesive pouring nozzle of bottom to the inner resin by injection Matrix adhesive of injection molding.
Above-mentioned plastic extruder adopts the coated head of bushing type, comprise helicoid, heart yearn, extruder screw, filter, guide rod, electric heater, mouthful mould and body, described body top is provided with extruder screw and filter, body inner chamber is provided with guide rod, guide rod is provided with helicoid outward, in guide rod, be installed with heart yearn, and connect the left and right sides wall of body; The outer end of described guide rod is provided with electric heater and mouthful mould.
A preparation method for the anti-eccentric wear coiled rod of fibre reinforced composites, is characterized in that comprising the following steps and makes:
(a) from putting guide frame, draw multiple fibre, under the traction of draw-gear, through heating furnace pretreatment, furnace temperature is between 80～150 ℃; From heating furnace fiber out, enter injection molding, be full of the resin matrix glue that injector is injected in injection molding, resin matrix is epoxy resin, vinyl ester resin or polyurethane resin;
(b) in injection molding, the fiber bundle of glue dipping passes through pultrusion die curing molding again, and the entrance of pultrusion die is provided with equipment for cooling die, for reducing die entrance temperature, avoids mold temperature to conduct to injection molding; Around pultrusion die, equipment for cooling die after, be distributed with mold heating device, 2～4 sections of heating, solidification temperature between 95～180 ℃, heating mode in gradient, pultrusion speed is between 0.08～1.5 m/min, pultrusion goes out the composite material body of rod; The composite material body of rod that pultrusion goes out enters rear solidifying heating furnice and carries out thermal stress processing and rear solidifying, and rear curing end, passes through draw-gear;
(c) between the draw-gear and coiler device of injection extruding equipment, a plastic extruder and cooling unit are set, utilize plastic extruder at one section or surface attachment one deck thermoplastic wearing layer of several sections of the moulding oil pumping body of rod, then through apparatus for supercooling; Through being fully cooled to after room temperature, utilize coiler device to be wound on the disk that diameter is 1.5m～3.5m.
Preferably, above-mentioned fiber is carbon fiber, and its preparation method comprises the steps:
Multi-beam carbon-fiber silk is entered into surfacing stove through putting row's silk hole of guide frame, furnace temperature is between 80～150 ℃, hauling speed is between 0.08～1.5 m/min, by the time be 1.0～12.5 minutes, carbon fiber after heat treatment enters injection molding, in injection molding, be full of the resin adhesive liquid that injector is injected, resin adhesive liquid proportioning is polyalcohol: isocyanates=100:121, carbon fiber after impregnation enters pultrusion die, and pultrusion die entrance utilizes recirculated water cooling mode to be down to room temperature, but after water-cooled, utilizes mold heating device, and by three sections of heating of mould, temperature is 110 ℃, 135 ℃, 155 ℃, composite bar after moulding continues to advance with the speed of 0.08～1.5 m/min, by length, it is 2 meters, temperature is to solidify and process after the rear solidifying heating furnice of 150 ℃, after fully cooling by air, the body of rod is through tractor, as heart yearn, enter plastic extrusion machine head, plastic extruder is extruded the high density polyethylene pipe base that thickness is 3mm continuously, pipe is around the sucker rod body of rod, when pipe ingress of air is cooling, produce stronger convergent force, guarantee that high density polyethylene pipe base is tightly coated on sucker rod body of rod external surface, with one section of anti-eccentric wear coiled rod of fibre reinforced composites with wearing layer, be wound on disk and complete.
Preferably, described fiber is high-strength glass fibre, its preparation method comprises the steps: that the furnace temperature of heat treatment of fiber is 100 ℃, hauling speed is 0.2 m/min, change injecting resin is epoxy resin, epoxy resin E-51 wherein: methyl tetrahydro phthalic anhydride: DMP-30: the parts by weight of zinc stearate are 100:85:2.0:1, two sections of heating of pultrusion die, temperature is 120 ℃, 160 ℃; Sucker rod after moulding is 160 ℃ by temperature, and the rear curing processing stove that length is 3m is processed; The cooling rear plastic extruder that utilizes is extruded the nylon wearing layer that thickness is 4mm continuously, through after fully cooling, with the continous sucker rod made of fiber reinforced composition of wearing layer, be wound on disk and complete.
Preferably, above-mentioned fiber is basalt fibre, its preparation method comprises the steps: that the furnace temperature of heat treatment of fiber is 120 ℃, hauling speed is 0.38 m/min, change injecting resin is vinyl ester resin, Atlac 430:MEKP:BPO wherein: the weight fraction of zinc stearate is 100:1.5:1.5:1, three sections of heating of mould, temperature is 95 ℃, 115 ℃, 145 ℃; Sucker rod after moulding is 140 ℃ by temperature, and the rear curing processing stove that length is 3m is processed; The cooling rear plastic extruder that utilizes is extruded the nylon wearing layer that thickness is 5mm continuously, through after fully cooling, with the continous sucker rod made of fiber reinforced composition of wearing layer, is wound on the disk that diameter is 3.5m.
Wherein, thermoplastic wearing layer is a kind of in high density polyethylene (HDPE) (HDPE), acrylonitrile-butadiene-styrene (ABS), polyformaldehyde (POM), nylon (PA), polyphenylene oxide (PPO), polysulfones (PSV), polytetrafluoroethylene (PTFE), polyether-ether-ketone (PEEK); In addition, 2,4,6-three (dimethylamino methyl) phenol, is called for short DMP-30; Vinylite (Atlac430); Methyl ethyl ketone peroxide (MEKP); Benzoyl peroxide (BPO).
The invention has the beneficial effects as follows: sucker rod of the present invention, on continous sucker rod made of fiber reinforced composition surface, extrude continuously and form continuous one section or interrupted several sections of thermoplastic wearing layers, given the corrosion-resistant and resistance to eccentric wear performance of sucker rod excellence, reduced greatly again joint quantity, reduced and resolve de-probability and piston effect; Simultaneously the sucker rod body of rod and the plastic wear-resisting layer combination length between the two is longer, and intensity is very high, has avoided slippage and layering from sucker rod surface at the normal in service anti-eccentric wear layer of oil well;
Utilize preparation method provided by the invention, adopt injection pultrusion and plastic extrusion assembling process, can significantly improve the continous-stable that the continous sucker rod made of fiber reinforced composition body of rod is produced, guaranteed that the position distribution of thermoplastic wearing layer on sucker rod body of rod surface meets design requirement, the combination of wearing layer and the body of rod completes online, production efficiency is high, bond strength is large, has avoided the generation of layering, obscission.In tradition pultrude process, in open glue groove, glue contacts with air for a long time, and reaction gel, and the backflow of unnecessary resin on a small quantity causes the new and old inequality of glue in glue groove, causes properties of product to reduce, and technique continuity is poor.Injection pultrude process has been cancelled steeping vat open in traditional pultrude process, change injector injection glue into injection molding die cavity, do not have the fiber of impregnation directly to enter in injection molding, with the glue hybrid infusion in mold cavity, avoided environmental factor to mix the uneven impact on technique and product quality to the impact of glue and new and old glue, guarantee to produce the freshness of glue used, improved the continous-stable of producing.Injection pultrude process is produced the continous sucker rod made of fiber reinforced composition body of rod, directly as the heart yearn in plastic extrusion process, through head guide rod, rely on the pipe of head extrusion molding to meet convergent force stronger when cold, sucker rod and wearing layer strong bonded, finally form the anti-eccentric wear coiled rod of fibre reinforced composites.
Device of the present invention has been realized method of the present invention, and production efficiency is high, easy and simple to handle.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the anti-eccentric wear coiled rod of fibre reinforced composites of the present invention;
Accompanying drawing 2 is schematic flow sheets of preparation facilities of the present invention;
Accompanying drawing 3 is structural representations of injection molding in injection pultrude process of the present invention;
Accompanying drawing 4 is structural representations of the coated head of plastic extrusion process middle sleeve formula of the present invention;
In upper figure: put guide frame 1, pretreatment heating furnace 2, injector 3, injection molding 4, equipment for cooling die 5, pultrusion die 6, mold heating device 7, control section 8, rear solidifying heating furnice 9, draw-gear 10, coiler device 11, plastic extruder 12 and cooling unit 13; Adhesive pouring nozzle 4.1, vacuum nozzle 4.2, resin matrix glue 4.3;
Helicoid al, heart yearn a2, extruder screw a3, filter a4, guide rod a5, electric heater a6, mouthful mould a7, body a8, thermoplastic wearing layer a, fiber reinforced resin based composite material body of rod b.
The specific embodiment
With reference to accompanying drawing 1, the anti-eccentric wear coiled rod of fibre reinforced composites that the present invention mentions, one section or several sections at the external surface of fiber reinforced resin based composite material body of rod b is covered with one deck thermoplastic wearing layer a, described thermoplastic wearing layer a is high density polyethylene (HDPE), acrylonitrile-butadiene-styrene, polyformaldehyde, nylon, polyphenylene oxide, polysulfones, a kind of making in polytetrafluoroethylene (PTFE) or polyether-ether-ketone, the thickness of thermoplastic wearing layer a is 1～10mm, the fiber that described fiber reinforced resin based composite material body of rod b adopts is glass fiber, the a kind of of carbon fiber or basalt fibre makes, the resin matrix adopting is epoxy resin, polyurethane resin or vinyl ester resin a kind of, the continuous length of the body of rod of making is 1～5000m.
The cross sectional shape of the above-mentioned fiber reinforced resin based composite material body of rod is for just round or oval.
With reference to accompanying drawing 2 to accompanying drawing 3, preparation facilities of the present invention comprises puts guide frame 1, pretreatment heating furnace 2, injector 3, injection molding 4, equipment for cooling die 5, pultrusion die 6, mold heating device 7, control section 8, rear solidifying heating furnice 9, draw-gear 10, coiler device 11 forms injection pultrusion equipment, its improvements are: between the draw-gear 10 of injection pultrusion equipment and coiler device 11, be provided with a plastic extruder 12 and cooling unit 13, utilize plastic extruder 12 at surface attachment one deck thermoplastic wearing layer of the moulding body of rod, then through apparatus for supercooling 13 cooling processing, one or two adhesive pouring nozzles 4.1 are housed in the bottom of injection molding 4, one or two vacuum nozzles 4.2 are equipped with at top, the external vacuum tube of vacuum nozzle 4.2, and vacuum tube is connected with vacuum tank, vacuum tank is controlled by vacuum pump, continues the vacuum of maintenance >=-0.85MPa when producing, described injector 3 is passed through the adhesive pouring nozzle 4.1 of bottom to the inner resin by injection Matrix adhesive 4.3 of injection molding.
With reference to accompanying drawing 4, the plastic extruder 12 that the present invention mentions adopts the coated head of bushing type, comprise helicoid al, heart yearn a2, extruder screw a3, filter a4, guide rod a5, electric heater a6, mouthful mould a7 and body a8, described body a8 top is provided with extruder screw a3 and filter a4, body a8 inner chamber is provided with guide rod a5, guide rod a5 is provided with helicoid al outward, is installed with heart yearn a2 in guide rod a5, and connects the left and right sides wall of body a8; The outer end of described guide rod a5 is provided with electric heater a6 and mouthful mould a7, wherein, the composite material sucker rod body of rod is directly as the heart yearn in plastic extrusion process, through head guide rod, rely on the pipe of head extrusion molding to meet convergent force stronger when cold, sucker rod and wearing layer strong bonded, finally form the anti-eccentric wear coiled rod of fibre reinforced composites.
Wherein, above-mentioned fiber reinforced resin based composite material body of rod b, its cross sectional shape is for just round or oval, and its continuous length is generally 1～5000m, thermoplastic wearing layer a, its thickness is generally 1～10mm, in the longitudinal direction, only at the sucker rod body of rod and the corresponding position of oil pipe eccentric wear well section, occurring, can be continuous one section, can be interrupted several sections, all the other positions of the body of rod do not need all to adhere to wearing layer yet.
By adopting above-mentioned preparation facilities, realize preparation method of the present invention specifically:
(a) from putting guide frame 1, draw multiple fibre (glass fiber, carbon fiber or basalt fibre), process heating furnace 2 pretreatment under the traction of draw-gear 10, atmosphere is air, furnace temperature is between 80～150 ℃, hauling speed between 0.08～1.5 m/min, by the time be 1.0～12.5 minutes; From heating furnace 2 fiber out, enter injection molding 4, be full of the resin matrix glue 4.3 that injector 3 is injected in injection molding 4, resin matrix is epoxy resin, vinyl ester resin or polyurethane resin.
(b) fiber bundle through the interior glue dipping of injection molding 4 passes through pultrusion die 6 curing moldings again, and the entrance of pultrusion die 6 is provided with equipment for cooling die 5, for reducing die entrance temperature, avoids mold temperature to conduct to injection molding 4.Around pultrusion die 6, after equipment for cooling die 5, be distributed with mold heating device 7, general 2～4 sections of heating, solidification temperature between 95～180 ℃, heating mode in gradient, pultrusion speed is between 0.08～1.5 m/min, pultrusion goes out the composite material body of rod.The composite material body of rod that pultrusion goes out enters rear solidifying heating furnice 8 and carries out thermal stress processing and rear solidifying, and rear curing end, by draw-gear 10.
(c) between the draw-gear 10 and coiler device 11 of injection extruding equipment, a plastic extruder 12 and cooling unit 13 are set, utilize plastic extruder 12 at one section or surface attachment one deck thermoplastic wearing layer of several sections of the moulding oil pumping body of rod, then through apparatus for supercooling 13.Through being fully cooled to after room temperature, utilize coiler device 11 to be wound on the disk that diameter is 1.5m～3.5m.
Comprehensive, the present invention adopts injection pultrusion and plastic extrusion assembling process, a kind of by glass fiber, carbon fiber or basalt fibre, compound by injection pultrusion molding process and resin matrix, prepare the composite material sucker rod body of rod, directly as the heart yearn in plastic extrusion process, through head guide rod, rely on the pipe of head extrusion molding to meet convergent force stronger when cold, sucker rod and wearing layer strong bonded, finally form the anti-eccentric wear coiled rod of fibre reinforced composites.
Below by embodiment, to the detailed description of the invention, but the invention is not restricted to these embodiment.
embodiment 1:
Multi-beam carbon-fiber silk is entered into surfacing stove through putting row's silk hole of guide frame, furnace temperature is 120 ℃, hauling speed is 1.0 ms/min, carbon fiber after heat treatment enters injection molding, in injection molding, be full of the resin adhesive liquid that injector is injected, resin adhesive liquid proportioning is polyalcohol: isocyanates=100:121.Carbon fiber after impregnation enters pultrusion die, and pultrusion die entrance utilizes recirculated water cooling mode to be down to room temperature, but after water-cooled, utilizes mold heating device, and by three sections of heating of mould, temperature is 110 ℃, 135 ℃, 155 ℃.Composite bar after moulding continues to advance with the speed of 1.0 ms/min, by length, it is 2 meters, temperature is to solidify and process after the rear solidifying heating furnice of 150 ℃, after fully cooling by air, the body of rod is through tractor, as heart yearn, enter plastic extrusion machine head, plastic extruder is extruded continuously the high density polyethylene (HDPE) that thickness is 3mm (HDPE) pipe in the length section of its 1002m～1105m, pipe is around the sucker rod body of rod, when pipe ingress of air is cooling, produce stronger convergent force, guarantee that high density polyethylene (HDPE) (HDPE) pipe is tightly coated on sucker rod body of rod external surface, the anti-eccentric wear coiled rod of fibre reinforced composites that is 103m wearing layer with a segment length is wound on the disk that diameter is 2.5m, according to oil well needs, produce while being 1345m to length, the body of rod is blocked, the anti-eccentric wear coiled rod of fibre reinforced composites that length is 1345m has been produced.
embodiment 2:according to implementing 1, the carbon fiber changing in pultrusion process is high-strength glass fibre, the furnace temperature of heat treatment of fiber is 100 ℃, hauling speed is 0.2 m/min, change injecting resin is epoxy resin, E-51 wherein: methyl tetrahydro phthalic anhydride: DMP-30: the parts by weight of zinc stearate are 100:85:2.0:1, two sections of heating of pultrusion die, temperature is 120 ℃, 160 ℃.Sucker rod after moulding is 160 ℃ by temperature, and the rear curing processing stove that length is 3m is processed.The cooling rear plastic extruder that utilizes is extruded continuously nylon (PA) wearing layer that thickness is 4mm in the length section of its 1202m～1295m, after fully cooling, the continous sucker rod made of fiber reinforced composition that is 73m wearing layer with a segment length is wound on the disk that diameter is 3m, according to oil well needs, produce while being 1521m to length, the body of rod is blocked, and the anti-eccentric wear coiled rod of fibre reinforced composites that length is 1521m has been produced.
embodiment 3:according to implementing 1, the carbon fiber changing in pultrusion process is basalt fibre, the furnace temperature of heat treatment of fiber is 120 ℃, hauling speed is 0.38 m/min, change injecting resin is vinyl ester resin, Atlac 430:MEKP:BPO wherein: the weight fraction of zinc stearate is 100:1.5:1.5:1, three sections of heating of mould, temperature is 95 ℃, 115 ℃, 145 ℃.Sucker rod after moulding is 140 ℃ by temperature, and the rear curing processing stove that length is 3m is processed.The cooling rear plastic extruder that utilizes is extruded continuously nylon (PA) wearing layer that thickness is 5mm in the length section of its 1952m～2045m, after fully cooling, the continous sucker rod made of fiber reinforced composition that is 93m wearing layer with a segment length is wound on the disk that diameter is 3.5m, according to oil well needs, produce while being 2167m to length, the body of rod is blocked, and the anti-eccentric wear coiled rod of fibre reinforced composites that length is 2167m has been produced.
Wherein, thermoplastic wearing layer is a kind of in high density polyethylene (HDPE) (HDPE), acrylonitrile-butadiene-styrene (ABS), polyformaldehyde (POM), nylon (PA), polyphenylene oxide (PPO), polysulfones (PSV), polytetrafluoroethylene (PTFE), polyether-ether-ketone (PEEK), certainly, also can adopt as required above-mentioned several modifications tree.
In addition, it should be noted that: 2,4,6-three (dimethylamino methyl) phenol, is called for short DMP-30; Vinylite (Atlac430); Methyl ethyl ketone peroxide (MEKP); Benzoyl peroxide (BPO).
Claims (7)
1. the preparation facilities of the anti-eccentric wear coiled rod of fibre reinforced composites, comprise and put guide frame (1), pretreatment heating furnace (2), injector (3), injection molding (4), equipment for cooling die (5), pultrusion die (6), mold heating device (7), control section (8), rear solidifying heating furnice (9), draw-gear (10), coiler device (11) forms injection pultrusion equipment, it is characterized in that: between the draw-gear (10) of injection pultrusion equipment and coiler device (11), be provided with a plastic extruder (12) and cooling unit (13), utilize plastic extruder (12) at one section or surface attachment one deck thermoplastic wearing layer of several sections of the moulding oil pumping body of rod, then through apparatus for supercooling (13) cooling processing, form the anti-eccentric wear coiled rod of fibre reinforced composites, in the bottom of injection molding (4), one or more adhesive pouring nozzle (4.1) is housed, one or more vacuum nozzle (4.2) is equipped with at top, the external vacuum tube of vacuum nozzle (4.2), and vacuum tube is connected with vacuum tank, the adhesive pouring nozzle (4.1) of described injector (3) by bottom is to the inner resin by injection Matrix adhesive (4.3) of injection molding.
2. the preparation facilities of the anti-eccentric wear coiled rod of fibre reinforced composites according to claim 1, it is characterized in that: described plastic extruder (12) adopts the coated head of bushing type, comprise helicoid (al), heart yearn (a2), extruder screw (a3), filter (a4), guide rod (a5), electric heater (a6), mouth mould (a7) and body (a8), described body (a8) top is provided with extruder screw (a3) and filter (a4), body (a8) inner chamber is provided with guide rod (a5), the outer helicoid (al) that is provided with of guide rod (a5), in guide rod (a5), be installed with heart yearn (a2), and connect the left and right sides wall of body (a8), the outer end of described guide rod (a5) is provided with electric heater (a6) and mouthful mould (a7).
3. utilize the preparation facilities of claim 1 or 2 to prepare a method for the anti-eccentric wear coiled rod of fibre reinforced composites, it is characterized in that comprising the following steps and make:
(a) from putting guide frame (1), draw multiple fibre, under the traction of draw-gear (10), through heating furnace (2) pretreatment, furnace temperature is between 80～150 ℃; From heating furnace (2) fiber out, enter injection molding (4), be full of the resin matrix glue (4.3) that injector (3) is injected in injection molding (4), resin matrix is epoxy resin, vinyl ester resin or polyurethane resin;
(b) in injection molding (4), the fiber bundle of glue dipping passes through pultrusion die (6) curing molding again, the entrance of pultrusion die (6) is provided with equipment for cooling die (5), for reducing die entrance temperature, avoid mold temperature to conduct to injection molding (4); Pultrusion die (6) around, equipment for cooling die (5) after, be distributed with mold heating device (7), 2～4 sections of heating, solidification temperature between 95～180 ℃, heating mode in gradient, pultrusion goes out the composite material body of rod; The composite material body of rod that pultrusion goes out enters rear solidifying heating furnice (8) and carries out thermal stress processing and rear curing processing, after rear curing processing finishes, by draw-gear (10);
(c) between the draw-gear (10) and coiler device (11) of injection extruding equipment, a plastic extruder (12) and cooling unit (13) are set, utilize one section or the surface attachment one deck thermoplastic wearing layer of several section of plastic extruder (12) on the moulding oil pumping body of rod, then through apparatus for supercooling (13); Through being fully cooled to after room temperature, utilize coiler device (11) to be wound on disk.
4. the method for preparing the anti-eccentric wear coiled rod of fibre reinforced composites according to claim 3, is characterized in that: described fiber is carbon fiber, and the preparation method of sucker rod further comprises the steps:
Multi-beam carbon-fiber silk is entered into surfacing stove through putting row's silk hole of guide frame, furnace temperature is between 80～150 ℃, carbon fiber after heat treatment enters injection molding, is full of the resin adhesive liquid that injector is injected in injection molding, and resin adhesive liquid proportioning is polyalcohol: isocyanates=100:121; Carbon fiber after impregnation enters pultrusion die, and pultrusion die entrance utilizes recirculated water cooling mode to be down to room temperature, but after water-cooled, utilizes mold heating device, by three sections of heating of mould; Composite bar after moulding moves on, by solidifying and process after solidifying heating furnice, after fully cooling by air, the body of rod is through tractor, as heart yearn, enter plastic extrusion machine head, plastic extruder is extruded high density polyethylene pipe base continuously, and pipe is around the sucker rod body of rod, tightly be coated on sucker rod body of rod external surface, be wound on disk and complete.
5. the method for preparing the anti-eccentric wear coiled rod of fibre reinforced composites according to claim 3, it is characterized in that: described fiber is high-strength glass fibre, the preparation method of sucker rod further comprises the steps: that fiber is through Overheating Treatment, change injecting resin is epoxy resin, epoxy resin E-51 wherein: methyl tetrahydro phthalic anhydride: DMP-30: the parts by weight of zinc stearate are 100:85:2.0:1, two sections of heating of pultrusion die; Sucker rod after moulding is processed by rear curing processing stove; After cooling, utilize plastic extruder to extrude continuously one deck nylon wearing layer, through after fully cooling, with the continous sucker rod made of fiber reinforced composition of wearing layer, be wound on disk and complete.
6. the method for preparing the anti-eccentric wear coiled rod of fibre reinforced composites according to claim 3, it is characterized in that: described fiber is basalt fibre, the preparation method of sucker rod further comprises the steps: that fiber is through Overheating Treatment, change injecting resin is vinyl ester resin, Atlac 430:MEKP:BPO wherein: the weight fraction of zinc stearate is 100:1.5:1.5:1, three sections of heating of mould; Sucker rod after moulding is processed by rear curing processing stove; After cooling, utilize plastic extruder to extrude continuously one deck nylon wearing layer, after fully cooling, be wound on disk.
7. the method for preparing the anti-eccentric wear coiled rod of fibre reinforced composites according to claim 3, is characterized in that: described thermoplastic wearing layer is a kind of in high density polyethylene (HDPE), acrylonitrile-butadiene-styrene, polyformaldehyde, nylon, polyphenylene oxide, polysulfones, polytetrafluoroethylene (PTFE), polyether-ether-ketone.
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| CN103627315A (en) * | 2013-11-22 | 2014-03-12 | 包头市丰达石油机械有限责任公司 | Nylon modified anticorrosive coating and application thereof |
| CN104060944B (en) * | 2014-06-16 | 2017-02-15 | 胜利油田新大管业科技发展有限责任公司 | Multilayer compound eccentric-wear-preventing continuous sucker rod and manufacturing device and method thereof |
| CN105034402B (en) * | 2015-05-22 | 2018-02-27 | 上海复合材料科技有限公司 | A kind of forming method of launch canister cylinder |
| CN107856329A (en) * | 2016-02-29 | 2018-03-30 | 陈德桂 | A kind of preparation facilities of sucker rod |
| CN106239940B (en) * | 2016-09-30 | 2018-04-06 | 席小平 | A kind of multi-layer wear-resistant wipes the preparation facilities of carbon-fiber continuous rod |
| CN116218069A (en) * | 2023-03-01 | 2023-06-06 | 滨州伟创高分子材料股份有限公司 | Polymer material composition and preparation and use methods thereof |
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| US4137762A (en) * | 1977-03-02 | 1979-02-06 | Smith William D | Wireline apparatus for use in earth boreholes |
| CN1417449A (en) * | 2001-11-02 | 2003-05-14 | 乾安油田实业开发总公司 | Antiwear pumping rod and its machining process |
| CN1252370C (en) * | 2002-05-27 | 2006-04-19 | 胜利石油管理局工程机械总厂 | Continous sucker rod made of fiber reinforced composition and its making method |
| CN1556303A (en) * | 2003-12-31 | 2004-12-22 | 山东大学 | High temperatur eresistant carbon fiber composite material continuous oil pumping rod and its manufacturing technology |
| CN1584279A (en) * | 2004-05-27 | 2005-02-23 | 中国石化集团胜利石油管理局工程机械总厂 | Sucker rod with carbon fibre and glass fibre mixed pultrusion and pultrusion forming method |
| CN101396874B (en) * | 2007-09-28 | 2010-06-30 | 北京化工大学 | Preparation method and device of eccentric wear prevention pumping rod |
| CN201883953U (en) * | 2010-12-07 | 2011-06-29 | 大庆市汇成科技开发有限公司 | High-strength wear-resistant continuous flexible sucker rod |
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