CN105178878A - Fiber-reinforced composite coiled sucker rod and production apparatus and method thereof - Google Patents
Fiber-reinforced composite coiled sucker rod and production apparatus and method thereof Download PDFInfo
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- CN105178878A CN105178878A CN201510629558.0A CN201510629558A CN105178878A CN 105178878 A CN105178878 A CN 105178878A CN 201510629558 A CN201510629558 A CN 201510629558A CN 105178878 A CN105178878 A CN 105178878A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000003733 fiber-reinforced composite Substances 0.000 title abstract 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 60
- 239000004917 carbon fiber Substances 0.000 claims abstract description 60
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- 239000012779 reinforcing material Substances 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 90
- 239000003292 glue Substances 0.000 claims description 50
- 238000010438 heat treatment Methods 0.000 claims description 42
- 238000001746 injection moulding Methods 0.000 claims description 41
- 239000011152 fibreglass Substances 0.000 claims description 40
- 238000004804 winding Methods 0.000 claims description 40
- 239000011521 glass Substances 0.000 claims description 36
- 239000002131 composite material Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 13
- 238000009954 braiding Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 6
- 230000008646 thermal stress Effects 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000009941 weaving Methods 0.000 claims description 4
- 238000006424 Flood reaction Methods 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
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Abstract
The invention discloses a fiber-reinforced composite coiled sucker rod and belongs to the technical field of oil production equipment in the petroleum industry. The fiber-reinforced composite coiled sucker rod has three structural layers stacked in order, namely an inner carbon fiber layer (A), an intermediate glass fiber layer (B) and an outer glass fiber layer (C) orderly from inside to outside. The inner carbon fiber layer is made of unidirectional carbon fibers arranged axially along a rod body. The intermediate glass fiber layer is made of H-grade glass fibers arranged transversely along the rod body and is bidirectionally wound or knitted to the inner carbon fiber layer. The outer glass fiber layer is made of unidirectional H-grade glass fibers arranged axially along the rod body. The sucker rod is made of resin matrix which is an epoxy resin system; the carbon fibers and the H-grade glass fibers are used as reinforcing materials. The invention further provides a production apparatus and method of the sucker rod. The sucker rod is good in corrosion resistance, has few connectors, is low in cost and low breaking rate, has slight piston effect and moderate modulus and is convenient to curl, transport, operate and use.
Description
Technical field
The present invention relates to a kind of sucker rod recovered the oil for industry, particularly a kind of continous sucker rod made of fiber reinforced composition and preparation facilities thereof and method, belong to petroleum industry technical field of oil extraction equipment.
Background technology
During petroleum industry is produced, etching problem is oil extraction in oil field technique problem demanding prompt solution.Sucker rod is the critical component connecting oil pumper and oil well pump, and its stressed complexity, work under bad environment, is easily had a strong impact on self application life because corroding, cause great cost to waste to field produces.Owing to possessing lightweight, high-strength, corrosion resistant feature, composite material sucker rod has started progressively to replace traditional metal sucker rod, and the composite material sucker rod adopted 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 the reliability requirement recovered the oil along with the modern times improves constantly, and 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) axial tension modulus is low, and distortion is large, causes oil well pump effective travel significantly to reduce, and oil recovery efficiency reduces obviously; 3) the equal fixed length of glass fiber reinforced plastic oil pumping rod, respectively there is a metal joint at two ends, adopt the metal box cupling of metal pumping rod application to be connected between root with root, due to complex structure, cause difficulty of processing large, simultaneously each root glass fiber reinforced plastic oil pumping rod two metal joints, cost intensive; In addition compared with conventional metals sucker rod, glass fiber reinforced plastic oil pumping rod has changed material except shank portion, and other parts of whole rod string there is no change, and the column joint existed in conventional metals sucker rod is many, disconnected de-probability is high, and the problems such as piston effect is obvious are not resolved.
The research of carbon fibre reinforced composite coiled rod also has a lot, as Chinese patent CN1461870 discloses a kind of carbon fibre reinforced composite coiled rod and preparation method, employing carbon fiber is reinforcing material, and form integral coating compound by the glass fiber of transversely arranged aramid fiber or superhigh molecular weight polyethylene fibers bundle and longitudinal direction, attempt to increase the horizontal interlaminar shear strength of sucker rod, also improve resistance to eccentric wear and the intensity of the body of rod simultaneously.But find in practical application, this sucker rod adopt pultrusion, coated Integratively processing method (comprise put silk-resin pickup glue-clad coated-preformed-solidification-coiling operation), clad is that fabric strengthens thermosetting resin, not only increase material cost, and the resistance to eccentric wear of fabric clad is not ideal enough; Clad is fabric, and seem the complete parcel body of rod one week, but there is fabric seam problem always, it is uneven that seam crossing exists lap width, extrudes inner unidirectional fibre, the problems such as transverse strength is low; 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 two-piece type can only be adopted to clamp, left and right directions cannot be spacing, is easy to the phenomenon that the body of rod deflects away from retained part occurs.Therefore its special implement retained part structure and developing material difficulty of going into the well is comparatively large, becomes the technical bottleneck in application, limits this product large-scale promotion application.
Chinese invention patent CN201210501186.X is also had to disclose a kind of fibre reinforced composites eccentric abrasion prevention coiled rod and preparation facilities thereof and method in addition, use the method for unidirectional fortifying fibre pultrusion, coating thermoplastic wearing layer, the fiber adopted is only the one of glass fiber, carbon fiber or basalt fibre, not clear and definite body of rod cross sectional shape and size, because only adopt single longitudinal fiber, its transverse strength is low, there is the problem such as radial compression, bending property difference; Adopt single glass fiber or basalt fibre, its axial tension modulus is low, and distortion is large, and similar glass fiber reinforced plastic oil pumping rod, can cause oil well pump effective travel significantly to reduce, and oil recovery efficiency reduces obviously; Adopt single carbon fiber, its rod body material cost is very high, and while increasing axial tension modulus, bending modulus also becomes large, causes bending difficulty, can not meet road transport requirement and job requirements, limit it and apply.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of continous sucker rod made of fiber reinforced composition, this sucker rod corrosion resistance and good, use joint is few, and cost is low, and disconnected de-probability is little, simultaneously piston effect is little, and modulus moderate, be convenient to winding, transport and operation easy to use.In addition, present invention also offers a kind of preparation facilities and method of this continous sucker rod made of fiber reinforced composition.
To achieve these goals, a kind of continous sucker rod made of fiber reinforced composition that the present invention adopts, this sucker rod body of rod cross section is circular, adopt the three layer construction stacked gradually, be followed successively by interior carbon fiber layer from inside to outside, intermediate glass fibrage and outer glass layer, described interior carbon fiber layer adopts the Unidirectional fiber axially arranged along the body of rod, described intermediate glass fibrage adopts the H level fiberglass along body of rod horizontally set, the two-way winding of intermediate glass fibrage or be woven on described interior carbon fiber layer, described outer glass layer adopts the unidirectional H level fiberglass axially arranged along the body of rod, the resin matrix that this sucker rod adopts is epoxy-resin systems, by carbon fiber and H level fiberglass as reinforcing material, the sucker rod body of rod diameter made is 16 ~ 32mm, continuous length≤5000m.
Present invention also offers a kind of preparation facilities of continous sucker rod made of fiber reinforced composition, comprise and put guide frame, pretreatment heating furnace, injection molding, injector, equipment for cooling die, pultrusion die, mold heating device, control device, Post RDBMS heating furnace, draw-gear, coiler device, also comprise winding machine or braider, described winding machine or braider are arranged on injection molding front;
Controlled by control device, multi-beam carbon-fiber and H level fiberglass is drawn from putting guide frame, through injection molding under the traction of draw-gear, the epoxy resin-base glue that injector is injected is full of in injection molding, between the outer field unidirectional H level fiberglass of the unidirectional carbon fiber peacekeeping of internal layer, winding machine or braider is used to be wound around between ectonexine fiber or to weave intermediate layer, in injection molding, the fiber bundle of glue dipping is again through pultrusion die curing molding, the entrance of pultrusion die is provided with the equipment for cooling die for mould cooling, be positioned on rear side of described equipment for cooling die around pultrusion die and be distributed with three section die heaters, after curing molding, fiber bundle makes the composite material body of rod after mold heating device heating, this composite material body of rod enters after Post RDBMS heating furnace carries out thermal stress process and Post RDBMS, be wound on the disk of coiler device by draw-gear.
As improvement, described injection molding comprises static blender, hole for injecting glue, filter, resin cavity, puts glue hole, muff heater;
Described static blender is connected with hole for injecting glue, the lower end of hole for injecting glue is communicated with resin cavity by filter, the outside of described hole for injecting glue is provided with muff heater, the lower end of described resin cavity is provided with puts glue hole, static blender is by the epoxy resin-base glue mixing in hole for injecting glue resin by injection chamber, and coordinate the muff heater outside hole for injecting glue, glue falls in resin cavity through filter plate, after in resin cavity, fiber fully infiltrates, glue finally flows out through putting glue hole.
As improvement, described braider comprises control system, servomotor, reductor, spindle drive systems, fiber axis drive system, tensioning apparatus, fiber placement axle;
Controlled by control system, described servomotor connects spindle drive systems by reductor, and described spindle drive systems is connected with fiber axis drive system, and described fiber axis drive system is placed axle by tensioning apparatus and the fiber for placing fiber and is connected.
In addition, present invention also offers a kind of preparation method of continous sucker rod made of fiber reinforced composition, comprise the following steps:
1) drawing multi-beam carbon-fiber and H level fiberglass from putting guide frame, through injection molding under the traction of draw-gear, in described injection molding, being full of the epoxy resin-base glue that injector is injected in advance;
2) in internal layer between the outer field outer glass layer of unidirectional carbon fiber peacekeeping, winding machine or braider is used to be wound around or braiding intermediate glass fibrage, the fibrolaminar thickness of described intermediate glass is 1 ~ 2mm, be wound around or be woven to two-way winding or braiding, the both direction intersecting angle being wound around or weaving is 15 ~ 85 °; Be wound around or braiding intermediate glass fibrage and interior unidirectional carbon fiber peacekeeping outward glass layer synchronously enter injection molding;
3) in injection molding, the fiber bundle of glue dipping is again through pultrusion die curing molding, 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, after equipment for cooling die, be distributed with three section die heaters, the heating-up temperature of described mold heating device between 95 ~ 230 DEG C, three sections of heating modes in gradient, hauling speed, between 0.05 ~ 0.5 m/min, makes the composite material body of rod; The composite material body of rod enters Post RDBMS heating furnace and carries out thermal stress process and Post RDBMS, and treatment temperature is that between 150 ~ 250 DEG C, Post RDBMS terminates, and by draw-gear, be wound on the disk of coiler device, disk diameter is 1.5m ~ 3.5m.
Compared with prior art, continous sucker rod made of fiber reinforced composition of the present invention, single longitudinal fiber coiled rod pultrude process basis adds and is laterally wound around or braid, add radial strength and axial compression strength; Carbon fiber and glass fiber used in combination, provide moderate modulus, both ensured that its axial deformation was little, effectively reduce bending diameter again, reduce the bending performance impact to the body of rod, be convenient to operation and transport, and decrease carbon fiber use amount, significantly reduce material cost, improve product cost, be easier to promote; In addition, this coiled rod only two ends has two joints, greatly reduces joint quantity, reduces and resolves de-probability and piston effect.
Utilize preparation facilities provided by the invention and method, adopt and be wound around or weave and pultrusion assembling process, provide the fibrage distribution of stable science, guarantee is laterally wound around or braid fiber effectively provides transverse strength; This transverse layers is in centre simultaneously, avoids transverse fiber when entering curing mold, with mould produce rub cause machine direction to change may; Three layer construction is curing molding simultaneously, and ensure the continous-stable that the continous sucker rod made of fiber reinforced composition body of rod is produced, ensure that one-shot forming, production efficiency is high, and bond strength is large, avoids the generation of layering, obscission.
Accompanying drawing explanation
Fig. 1 is the structural representation of continous sucker rod made of fiber reinforced composition of the present invention;
Fig. 2 is the schematic flow sheet of preparation facilities of the present invention;
Fig. 3 is the structural representation of injection molding in injection pultrude process of the present invention;
Fig. 4 is the structural representation of braider in braiding pultrude process of the present invention;
Fig. 5 is the front view of braider in the present invention;
In figure: A, interior carbon fiber layer, B, intermediate glass fibrage, C, outer glass layer;
1, put guide frame, 2, pretreatment heating furnace, 3, braider, 3a, control system, 3b, servomotor, 3c, reductor, 3d, spindle drive systems, 3e, fiber axis drive system, 3f, tensioning apparatus, 3g, axle placed by fiber, 3h, fiber axis running orbit groove, 4, injection molding, 4a, static blender, 4b, hole for injecting glue, 4c, filter, 4d, resin cavity, 4e, fiber, 4f, put glue hole, 4g, muff heater, 5, injector, 6, equipment for cooling die, 7, pultrusion die, 8, mold heating device, 9, control device, 10, Post RDBMS heating furnace, 11, draw-gear, 12, coiler device.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below by accompanying drawing and embodiment, the present invention is further elaborated.But should be appreciated that, specific embodiment described herein, only in order to explain the present invention, is not limited to scope of the present invention.
As shown in Figure 1, a kind of continous sucker rod made of fiber reinforced composition, this sucker rod body of rod cross section is circular, adopt the three layer construction stacked gradually, be followed successively by interior carbon fiber layer A from inside to outside, intermediate glass fibrage B and outer glass layer C, described interior carbon fiber layer A adopts the Unidirectional fiber axially arranged along the body of rod, described intermediate glass fibrage B adopts the H level fiberglass along body of rod horizontally set, the two-way winding of intermediate glass fibrage B or be woven on described interior carbon fiber layer A, described outer glass layer C adopts the unidirectional H level fiberglass axially arranged along the body of rod, the resin matrix that this sucker rod adopts is epoxy-resin systems, by carbon fiber and H level fiberglass as reinforcing material, the sucker rod body of rod diameter made is 16 ~ 32mm, continuous length≤5000m.
As shown in Figure 2, a kind of preparation facilities of continous sucker rod made of fiber reinforced composition, comprise and put guide frame 1, pretreatment heating furnace 2, injection molding 4, injector 5, equipment for cooling die 6, pultrusion die 7, mold heating device 8, control device 9, Post RDBMS heating furnace 10, draw-gear 11, coiler device 12, also comprise winding machine or braider 3, described winding machine or braider 3 are arranged on injection molding 4 front;
Controlled by control device 9, multi-beam carbon-fiber and H level fiberglass is drawn from putting guide frame 1, through injection molding 4 under the traction of draw-gear 11, the epoxy resin-base glue that injector 5 is injected is full of in injection molding 4, between the outer field unidirectional H level fiberglass of the unidirectional carbon fiber peacekeeping of internal layer, winding machine or braider 3 is used to be wound around between ectonexine fiber or to weave intermediate layer, in injection molding 4, the fiber bundle of glue dipping is again through pultrusion die 7 curing molding, the entrance of pultrusion die 7 is provided with the equipment for cooling die 6 for mould cooling, be positioned on rear side of described equipment for cooling die 6 around pultrusion die 7 and be distributed with three section die heaters 8, after curing molding, fiber bundle makes the composite material body of rod after mold heating device 8 heats, this composite material body of rod enters after Post RDBMS heating furnace 10 carries out thermal stress process and Post RDBMS, be wound on by draw-gear 11 on the disk of coiler device 12.
As improvement, as shown in Figure 3, described injection molding 4 comprises static blender 4a, hole for injecting glue 4b, filter 4c, resin cavity 4d, puts glue hole 4f, muff heater 4g;
Described static blender 4a is connected with hole for injecting glue 4b, the lower end of hole for injecting glue 4b is communicated with resin cavity 4d by filter 4c, the outside of described hole for injecting glue 4b is provided with muff heater 4g, the lower end of described resin cavity 4d is provided with puts glue hole 4f, static blender 4a is by the epoxy resin-base glue mixing in hole for injecting glue 4b resin by injection chamber 4d, coordinate the muff heater 4g outside hole for injecting glue 4b, glue falls in resin cavity 4d through filter plate 4c, after in resin cavity 4d, fiber 4e fully infiltrates, glue finally flows out through putting glue hole 4f.
As improvement, as shown in Figure 4, Figure 5, described braider 3 comprises control system 3a, servomotor 3b, reductor 3c, spindle drive systems 3d, fiber axis drive system 3e, tensioning apparatus 3f, fiber placement axle 3g;
Controlled by control system 3a, described servomotor 3b connects spindle drive systems 3d by reductor 3c, described spindle drive systems 3d is connected with fiber axis drive system 3e, and described fiber axis drive system 3e places axle 3g by tensioning apparatus 3f with the fiber for placing fiber and is connected.When using braider 3, according to the movement locus of fiber axis running orbit groove 3h, weaving operation is carried out to fiber.
In addition, invention also improves a kind of preparation method of above-mentioned continous sucker rod made of fiber reinforced composition, comprise the following steps:
1) drawing multi-beam carbon-fiber and H level fiberglass from putting guide frame 1, through injection molding 4 under the traction of draw-gear 11, in described injection molding 4, being full of the epoxy resin-base glue that injector 5 is injected in advance;
2) in internal layer between Unidirectional fiber A and outer field outer glass layer C, winding machine or braider 3 is used to be wound around or to weave intermediate glass fibrage B, the thickness of described intermediate glass fibrage B is 1 ~ 2mm, be wound around or be woven to two-way winding or braiding, the both direction intersecting angle being wound around or weaving is 15 ~ 85 °; To be wound around or intermediate glass fibrage B and the interior Unidirectional fiber A and outer glass layer C of braiding synchronously enter injection molding 4;
3) in injection molding 4, the fiber bundle of glue dipping is again through pultrusion die 7 curing molding, and the entrance of pultrusion die 7 is provided with equipment for cooling die 6, for reducing die entrance temperature, avoids mold temperature to conduct to injection molding 5; Around pultrusion die 7, after equipment for cooling die 6, be distributed with three section die heaters 8, the heating-up temperature of described mold heating device 8 between 95 ~ 230 DEG C, three sections of heating modes in gradient, hauling speed, between 0.05 ~ 0.5 m/min, makes the composite material body of rod; The composite material body of rod enters Post RDBMS heating furnace 10 and carries out thermal stress process and Post RDBMS, and treatment temperature is that between 150 ~ 250 DEG C, Post RDBMS terminates, and by draw-gear 11, be wound on the disk of coiler device 12, disk diameter is 1.5m ~ 3.5m.
Embodiment one
First, by control device 9 control operation, the H level fiberglass being 24TEX by 170 T300-12K carbon fiber wires and 130 line densities enters into pretreatment heating furnace 2 respectively through row's silk hole of putting guide frame 1, furnace temperature is 120 DEG C, hauling speed is 0.15 m/min, 170 T300-12K carbon fibers after heat treatment are become diameter to be the positive circle of 12mm by boundling, the core bore in the middle of two winding machines;
The direction of rotation of two winding machines is contrary (in the face of the carbon fiber bundle direction of motion, First winding machine is for turning clockwise, second winding machine is for being rotated counterclockwise), every platform winding machine there are 8 line densities be the H level fiberglass of 24TEX, 8 H level fiberglass are drawn successively, through the row's silk hole in the middle of winding machine, form the glass fiber tape that a 4mm is wide, the wide glass fiber tape uniform winding of 4mm is the positive circular carbon fiber bundle external surface of 12mm at diameter, the rotary speed of adjustment two winding machines, ensure that the wide glass fiber tape of 4mm of two winding machines axially becomes ﹢ 55 ° of angles and ﹣ 55 ° of angles respectively with carbon fiber bundle, and in the arrangement of carbon fiber bundle surface closely, evenly, there is no gap, not superposition,
130 line densities after heat treatment are that the H level fiberglass of 24TEX is become 10 bundles by boundling, often restraint 13, be evenly distributed on the outside of the positive circular carbon fiber bundle being wound around upper layer glass fiber, diameter is become to be the positive circle of 19.2mm by boundling together, enter injection molding 4, in injection molding 4, be full of the epoxy resin adhesive liquid that injector 5 is injected;
Fiber bundle after abundant impregnation enters the positive circular pultrusion die 7 that diameter is 19mm, pultrusion die 7 entrance utilizes recirculated water cooling mode to remain on room temperature by equipment for cooling die 6, but after water-cooled, utilize mold heating device 8, by the heating of three sections, mould, temperature is 110 DEG C, 160 DEG C, 155 DEG C, fiber bundle from pultrusion die 7 out, i.e. curing molding;
Composite bar after shaping continues to advance with the speed of 0.1 m/min, it is 6 meters by length, temperature is the Post RDBMS heating furnace 10 Post RDBMS process of 150 DEG C, Post RDBMS terminates, after the body of rod is fully cooled by air, after draw-gear 11, coiler device 12 is relied on to be wound on the disk that diameter is 2.8m by the obtained oil pumping body of rod, according to producing well needs, when production is 1500m to length, the body of rod is blocked, a length is 1500m, cross section is positive circular, diameter is 19mm, carbon fiber and H level fiberglass used in combination, the continous sucker rod made of fiber reinforced composition of three-layer composite structure has been produced.
Embodiment two
According to enforcement one, change the radical of outer unidirectional H level fiberglass, produce the continous sucker rod made of fiber reinforced composition of different-diameter: be that the H level fiberglass quantity of 24TEX changes 210 into by line density, enter into surfacing stove with 170 T300-12K carbon fiber wires respectively through row's silk hole of putting guide frame 1.All the other are identical to heat treatment operation.
210 line densities after heat treatment are that the H level fiberglass of 24TEX is become 15 bundles by boundling, often restraint 14, be evenly distributed on the outside of the positive circular carbon fiber bundle being wound around upper layer glass fiber, diameter is become to be the positive circle of 22.2mm by boundling together, enter injection molding 4, in injection molding 4, be full of the epoxy resin adhesive liquid that injector 5 is injected;
Fiber bundle after abundant impregnation enters the positive circular pultrusion die 7 that diameter is 22mm, curing molding, and Post RDBMS terminates, after the body of rod is fully cooled by air, through draw-gear 11, be wound on disk that diameter is 3.0m, according to producing well needs, when production is 2000m to length, blocked by the body of rod, a length is 2000m, cross section is positive circular, diameter is 22mm, carbon fiber and H level fiberglass used in combination, the continous sucker rod made of fiber reinforced composition of three-layer composite structure has been produced.
Embodiment three
According to embodiment one, change the radical of internal layer carbon fiber, change the quantity of winding machine, change the radical of outer unidirectional H level fiberglass, produce the continous sucker rod made of fiber reinforced composition of different-diameter.
The H level fiberglass being 24TEX by 230 T300-12K carbon fiber wires and 300 line densities enters into surfacing stove respectively through row's silk hole of putting guide frame 1, and furnace temperature is 120 DEG C, and hauling speed is 0.1 m/min;
230 T300-12K carbon fibers after heat treatment are become diameter to be the positive circle of 14mm by boundling, core bore in the middle of four winding machines, the direction of rotation of four winding machines is contrary (in the face of the carbon fiber bundle direction of motion between two, First winding machine is for turning clockwise, second winding machine is for being rotated counterclockwise, 3rd winding machine is for turning clockwise, 4th winding machine is for being rotated counterclockwise), every platform winding machine there are 8 line densities be the H level fiberglass of 24TEX, 8 H level fiberglass are drawn successively, through the row's silk hole in the middle of winding machine, form the glass fiber tape that a 4mm is wide, the wide glass fiber tape uniform winding of 4mm is the positive circular carbon fiber bundle external surface of 12mm at diameter, the rotary speed of adjustment two winding machines, ensure that the wide glass fiber tape of 4mm of four winding machines axially becomes ﹢ 55 ° of angles respectively with carbon fiber bundle, ﹣ 55 ° of angles, ﹢ 55 ° of angles and ﹣ 55 ° of angles, and in the arrangement of carbon fiber bundle surface closely, evenly, there is no gap, not superposition,
300 line densities after heat treatment are that the H level fiberglass of 24TEX is become 20 bundles by boundling, often restraint 15, be evenly distributed on the outside of the positive circular carbon fiber bundle being wound around upper layer glass fiber, diameter is become to be the positive circle of 25.2mm by boundling together, enter injection molding 4, in injection molding 4, be full of the epoxy resin adhesive liquid that injector 5 is injected;
Fiber bundle after abundant impregnation enters the positive circular pultrusion die 7 that diameter is 25mm, pultrusion die 7 entrance utilizes recirculated water cooling mode to remain on room temperature, but after water-cooled, utilize mold heating device 8, by the heating of three sections, mould, temperature is 110 DEG C, 160 DEG C, 155 DEG C, fiber bundle from pultrusion die 7 out, i.e. curing molding;
Composite material sucker rod bar after shaping continues to advance with the speed of 0.1 m/min, it is 8 meters by length, temperature is the Post RDBMS heating furnace 10 Post RDBMS process of 160 DEG C, Post RDBMS terminates, after the body of rod is fully cooled by air, through draw-gear 11, be wound on disk that diameter is 3.2m, according to producing well needs, when production is 2500m to length, the body of rod is blocked, a length is 2500m, cross section is positive circular, diameter is 25mm, carbon fiber and H level fiberglass used in combination, the continous sucker rod made of fiber reinforced composition of three-layer composite structure has been produced.
Embodiment four
Continous sucker rod made of fiber reinforced composition is prepared by method provided by the invention, in order to analyze this sucker rod performance, selected cross sectional shape is positive circle, diameter is single longitudinal glass fiber of 19mm, single longitudinal carbon fiber as a control group, laterally be wound around from longitudinal carbon fiber that the present invention uses+glass or weave+body of rod prepared by the different fiber lay down Rotating fields of longitudinal glass three kinds carries out performance comparison, and result is as following table:
Contrast known, relative to single longitudinal glass fiber or carbon fiber, longitudinal carbon fiber that the present invention adopts+glass is laterally wound around or the braiding+three layer construction of longitudinal glass, the sucker rod of assorted fibre, reaches following effect:
1) moderate modulus.The three layer construction that the present invention adopts, modulus is 112.2Gpa, between the 75Gpa and the 150.4Gpa of single longitudinal carbon fiber of single longitudinal glass fiber, both ensured that self axial deformation was little, effectively reduce bending diameter again, reduce the bending performance impact to the body of rod, be convenient to operation and transport;
2) improve that the body of rod is anti-extrusion, shock resistance, effectively control crack advance, improve product application life;
3) decrease carbon fiber use amount, reduce material cost, improve product cost, be easier to promote.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a continous sucker rod made of fiber reinforced composition, it is characterized in that, this sucker rod body of rod cross section is circular, adopt the three layer construction stacked gradually, be followed successively by interior carbon fiber layer (A) from inside to outside, intermediate glass fibrage (B) and outer glass layer (C), described interior carbon fiber layer (A) adopts the Unidirectional fiber axially arranged along the body of rod, described intermediate glass fibrage (B) adopts the H level fiberglass along body of rod horizontally set, intermediate glass fibrage (B) two-way winding or be woven on described interior carbon fiber layer (A), described outer glass layer (C) adopts the unidirectional H level fiberglass axially arranged along the body of rod, the resin matrix that this sucker rod adopts is epoxy-resin systems, by carbon fiber and H level fiberglass as reinforcing material, the sucker rod body of rod diameter made is 16 ~ 32mm, continuous length≤5000m.
2. the preparation facilities of a continous sucker rod made of fiber reinforced composition according to claim 1, comprise and put guide frame (1), pretreatment heating furnace (2), injection molding (4), injector (5), equipment for cooling die (6), pultrusion die (7), mold heating device (8), control device (9), Post RDBMS heating furnace (10), draw-gear (11), coiler device (12), it is characterized in that, also comprise winding machine or braider (3), described winding machine or braider (3) are arranged on injection molding (4) front,
Controlled by control device (9), multi-beam carbon-fiber and H level fiberglass is drawn from putting guide frame (1), through injection molding (4) under the traction of draw-gear (11), the epoxy resin-base glue that injector (5) is injected is full of in injection molding (4), between the outer field unidirectional H level fiberglass of the unidirectional carbon fiber peacekeeping of internal layer, winding machine or braider (3) is used to be wound around between ectonexine fiber or to weave intermediate layer, in injection molding (4), the fiber bundle of glue dipping is again through pultrusion die (7) curing molding, the entrance of pultrusion die (7) is provided with the equipment for cooling die (6) for mould cooling, described equipment for cooling die (6) rear side is positioned at pultrusion die (7) and is distributed with three section die heaters (8) around, after curing molding, fiber bundle makes the composite material body of rod after mold heating device (8) heating, this composite material body of rod enters after Post RDBMS heating furnace (10) carries out thermal stress process and Post RDBMS, be wound on the disk of coiler device (12) by draw-gear (11).
3. the preparation facilities of a kind of continous sucker rod made of fiber reinforced composition according to claim 2, it is characterized in that, described injection molding (4) comprises static blender (4a), hole for injecting glue (4b), filter (4c), resin cavity (4d), puts glue hole (4f), muff heater (4g);
Described static blender (4a) is connected with hole for injecting glue (4b), the lower end of hole for injecting glue (4b) is communicated with resin cavity (4d) by filter (4c), the outside of described hole for injecting glue (4b) is provided with muff heater (4g), the lower end of described resin cavity (4d) is provided with puts glue hole (4f), epoxy resin-base glue in hole for injecting glue (4b) resin by injection chamber (4d) mixes by static blender (4a), coordinate the muff heater (4g) in hole for injecting glue (4b) outside, glue falls in resin cavity (4d) through filter plate (4c), after fiber (4e) in resin cavity (4d) fully infiltrates, glue finally flows out through putting glue hole (4f).
4. the preparation facilities of a kind of continous sucker rod made of fiber reinforced composition according to claim 2, it is characterized in that, described braider (3) comprises control system (3a), servomotor (3b), reductor (3c), spindle drive systems (3d), fiber axis drive system (3e), tensioning apparatus (3f), fiber placement axle (3g);
Controlled by control system (3a), described servomotor (3b) connects spindle drive systems (3d) by reductor (3c), described spindle drive systems (3d) is connected with fiber axis drive system (3e), and described fiber axis drive system (3e) is placed axle (3g) by tensioning apparatus (3f) and the fiber for placing fiber and is connected.
5. a preparation method for continous sucker rod made of fiber reinforced composition according to claim 1, is characterized in that, comprises the following steps:
1) multi-beam carbon-fiber and H level fiberglass is drawn from putting guide frame (1), through injection molding (4) under the traction of draw-gear (11), in described injection molding (4), be full of the epoxy resin-base glue that injector (5) is injected in advance;
2) in internal layer between Unidirectional fiber (A) and outer field outer glass layer (C), winding machine or braider (3) is used to be wound around or braiding intermediate glass fibrage (B), the thickness of described intermediate glass fibrage (B) is 1 ~ 2mm, be wound around or be woven to two-way winding or braiding, the both direction intersecting angle being wound around or weaving is 15 ~ 85 °; To be wound around or intermediate glass fibrage (B) and the interior Unidirectional fiber (A) of braiding and outer glass layer (C) synchronously enter injection molding (4);
3) fiber bundle that glue floods in injection molding (4) is again through pultrusion die (7) curing molding, the entrance of pultrusion die (7) is provided with equipment for cooling die (6), for reducing die entrance temperature, mold temperature is avoided to conduct to injection molding (5); Around pultrusion die (7), after equipment for cooling die (6), be distributed with three section die heaters (8), the heating-up temperature of described mold heating device (8) is between 95 ~ 230 DEG C, three sections of heating modes in gradient, hauling speed, between 0.05 ~ 0.5 m/min, makes the composite material body of rod; The composite material body of rod enters Post RDBMS heating furnace (10) and carries out thermal stress process and Post RDBMS, treatment temperature is between 150 ~ 250 DEG C, Post RDBMS terminates, by draw-gear (11), be wound on the disk of coiler device (12), disk diameter is 1.5m ~ 3.5m.
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| CN107364197A (en) * | 2017-05-25 | 2017-11-21 | 江苏海川新材料科技有限公司 | A kind of novel glass fiber reinforcement |
| CN107761251A (en) * | 2017-10-24 | 2018-03-06 | 山东大学 | A kind of assorted fibre multidimensional structure feature body of rod and preparation method thereof |
| CN108104733A (en) * | 2018-02-01 | 2018-06-01 | 山东中恒景新碳纤维科技发展有限公司 | Pumping rod of composite carbon fiber material with autonomous repair function |
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