CN105952981A - Pultrusion pipe and manufacturing method and equipment thereof - Google Patents
Pultrusion pipe and manufacturing method and equipment thereof Download PDFInfo
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- CN105952981A CN105952981A CN201610336832.XA CN201610336832A CN105952981A CN 105952981 A CN105952981 A CN 105952981A CN 201610336832 A CN201610336832 A CN 201610336832A CN 105952981 A CN105952981 A CN 105952981A
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- fiber
- tubing
- pultrusion
- pultrusion tubing
- layer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides a pultrusion pipe. The pipe wall of the pultrusion pipe at least comprises at least one of a circumferential fiber reinforcing layer and an axial fiber reinforcing layer, and a two-dimensional fiber braided layer braided and formed on the outermost layer. At least one layer in the pipe is of a continuous structure in the circumferential direction. The invention further provides a manufacturing method and equipment of the pultrusion pipe. The pipe manufactured through the manufacturing method is braided or wound or arranged layer by layer, and the problems that the numerical content of prepreg is high, a layering phenomenon is likely to happen between the layers in the forming process, and the anti-impact performance is poor do not exist between the layers. At least one layer in the pipe is of the continuous structure in the circumferential direction, no seam or fault exists, and the mechanical performance is excellent and stable. In addition, when the outer layers are wound or arranged, uniform pressure can be formed on the inner layers, interlayer bonding is enhanced, and the problem that the circumferential strength of a traditional pultrusion product is low is effectively solved.
Description
Technical field
The present invention relates to a kind of pultrusion tubing and preparation method thereof and manufacture equipment.
Background technology
Pultrusion is a kind of special process in composite material process planning, and production process is capable of full automation, and production efficiency is high, has fiber content height, good mechanical performance and stable, less cost of power.But, traditional pultrusion molding process makes traditional pultruded product have the defects such as hoop intensity is low.
For solving above-mentioned strength problem, frequently with multi-layer fiber composite molding tubing, roll the mode of parcel as passed sequentially through single layer fibre, form multi-layer fiber composite pipe.
But the tubing that this mode is formed, volume layer needs to use prepreg, and cost is high, and prepreg numerical value content is high, and in forming process, lamination easily occurs in interlayer, and shock resistance is poor.
Summary of the invention
In view of this, it is necessary to propose a kind of pultrusion tubing and preparation method thereof and the equipment of manufacture, to solve the problems referred to above.
A kind of pultrusion tubing, the tube wall of described pultrusion tubing at least includes:
At least one of which in hoop fiber-reinforced layer and axial direction fibre enhancement layer, and be knitted to form in outermost two-dimensional fiber braid；
In described tubing, at least one of which is circumferentially continuous structure.
Further, the order from the inside to the outside of described tube wall includes hoop fiber-reinforced layer, axial direction fibre enhancement layer and two-dimensional fiber braid successively, or includes axial direction fibre enhancement layer, hoop fiber-reinforced layer and two-dimensional fiber braid successively.
Further, described hoop fiber-reinforced layer and described two-dimensional fiber braid are circumferentially continuous structure.
Further, described hoop fiber-reinforced layer is entwined by least fiber hoop.
Further, the winding angle of described hoop fiber-reinforced layer is 80 °-90 °.
Further, described two-dimensional fiber braid is formed by least two fibrages.
Further, the angle of weave of described two-dimensional fiber braid is 20 °-70 °.
Further, described axial direction fibre enhancement layer includes many axially in parallel fibers.
Further, the pipe thickness of described pultrusion tubing is more than or equal to 0.5mm.
Further, the fibrous layer in described axial direction fibre enhancement layer and described two-dimensional fiber braid be respectively selected from following at least one: carbon fiber, glass fibre, basalt fibre or aramid fiber.
Further, every layer of fibrous layer of the tube wall of described pultrusion tubing is equipped with resin material.
Further, described resin material is thermosetting resin, described thermosetting resin one of which in epoxy resin, polyester resin, vinylite or phenolic resin.
The preparation method of a kind of pultrusion tubing, comprises the following steps that:
It is wound hoop fiber-reinforced layer or arrangement forms at least one of which in axial direction fibre enhancement layer；
It is knitted to form two-dimensional fiber braid at outermost layer；
In the tubing of described formation, at least one of which is circumferentially continuous structure.
Further, described preparation method specifically includes:
It is wound hoop fiber-reinforced layer and arranges axially outside formation axial direction fibre enhancement layer at described hoop fiber-reinforced layer, or arrangement forms axial direction fibre enhancement layer be wound described hoop fiber-reinforced layer outside described axial direction fibre enhancement layer vertically；
It is knitted to form two-dimensional fiber braid in outermost.
Further, described preparation method specifically includes:
Core rod is wound around fiber, and to described winding fiber injecting glue；
Axial direction fibre is introduced on described winding fiber after injecting glue, and to described axial direction fibre injecting glue；
Described axial direction fibre outermost layer braiding two-dimensional fiber braid after injecting glue, and to described two-dimensional fiber braid impregnation；And
After fiber architecture is pre-formed as the pipe geometry of design, the fiber of solidification preforming so that it is curing molding is pultrusion tubing.
Further, described each injecting glue process uses the resin material prepared in advance to corresponding fibrous layer injecting glue.
Further, described resin material is thermosetting resin, correspondingly, after fiber architecture is pre-formed as the pipe geometry of design, and the fiber of the preforming that is heating and curing so that it is curing molding is pultrusion tubing.
Further, described preparation method further comprises the steps of:
Mould fixed station is used to fix described core rod；And
Length direction along described core rod sets gradually wrapping machine, the first glue-injection machine, creel, the second glue-injection machine, braider, the 3rd glue-injection machine, mould, traction machine, cutting machine.
Further, on described core rod, it is wound around fiber by described wrapping machine by predetermined winding angle, and by described first glue-injection machine to described winding fiber injecting glue；
Described axial direction fibre is introduced by described creel, and by described second glue-injection machine to described axial direction fibre injecting glue；And
Control of two-dimensional braided fiber is woven by predetermined angle of weave at outermost layer by described braider, and by described 3rd glue-injection machine to described control of two-dimensional braided fiber impregnation；
Wherein, each glue-injection machine uses the resin material prepared in advance to corresponding fibrous layer injecting glue.
Further, the fiber that described wrapping machine, described creel, described braider are used is same fiber or not same fiber.
Further, the winding angle of described wrapping machine is 80 °-90 °.
Further, the angle of weave of described braider is 20 °-70 °.
Further, the step of the fiber of solidification preforming specifically includes:
After the temperature of described mould is first adjusted to solidify the temperature of described resin, being pulled the tubing of described preforming by described traction machine, and be heating and curing described resin by described mould, the tubing curing molding making described preforming is pultrusion tubing.
Further, the bringing-up section of described mould is three sections or four-part form gradient increased temperature.
Further, the mode of heating of described mould uses and heats board-like or heat block formula.
Further, described traction machine uses following a kind of: caterpillar tractor, fluid pressure type traction machine, screw type traction machine.
Further, described preparation method further comprises the steps of: the described pultrusion tubing of cutting.
Further, according to pre-set program described pultrusion tubing cut into by described cutting machine there is the tubing of predetermined length.
Further, described core rod is any one in circular, ellipse or polygon, and described pultrusion tube forming is any one in round tube, oval pipe or polygonal tube.
A kind of manufacture equipment of pultrusion tubing, including:
Core rod；
At least one in the wrapping machine set gradually along the length direction of described core rod or creel and braider.
Further, it is disposed with along described core rod:
Wrapping machine, for being wound around fiber by predetermined winding angle on described core rod；
Creel, is used for introducing axial direction fibre；And
Braider, for weaving control of two-dimensional braided fiber according to predetermined angle of weave at outermost layer.
Further, described manufacture equipment also includes:
It is separately positioned on the glue-injection machine after described wrapping machine, creel and braider.
Further, described manufacture equipment is also disposed with mould, traction machine and cutting machine at the length direction of the tailing edge core rod of said elements.
Further, the bringing-up section of described mould is three sections or four-part form gradient increased temperature.
Further, the mode of heating of described mould uses and heats board-like or heat block formula.
Further, described traction machine use following any one: caterpillar tractor, fluid pressure type traction machine, screw type traction machine.
Further, described core rod is circular, oval or any one in polygon.
Further, the winding angle of described wrapping machine is 80 °-90 °.
Further, the angle of weave of described braider is 20 °-70 °.
The preparation method of the pultrusion tubing that the present invention provides have employed the technique that online braiding is wound around pultrusion, it is possible to achieve having the epipodium continuous production to strength composite materials pultrusion tubing, production efficiency is high.
The tubing made according to the preparation method of the present invention forms for weaving layer by layer or being wound around or arrange, and does not have that prepreg numerical value content is high, the problems such as lamination, shock resistance difference easily occurs in interlayer in forming process between each layer.And at least one of which is circumferentially structure continuous print, seamless or tomography in the described tubing of the present invention, good mechanical performance and stable.
Additionally, when being wound around or arranging outer layer, internal layer can be formed a uniform pressure, strengthen Coating combination, efficiently solve the problem that tradition pultruded product hoop intensity is low.
Accompanying drawing explanation
Fig. 1 is the partial sectional view of a kind of pultrusion tubing of the embodiment of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram of the pultrusion tubing of Fig. 1.
Fig. 3 is the arrangement schematic diagram manufacturing equipment of a kind of pultrusion tubing of the embodiment of the present invention.
Fig. 4 is the schematic flow sheet of the preparation method of the pultrusion tubing of an embodiment of the present invention.
Fig. 5 is the schematic flow sheet of the preparation method of the pultrusion tubing of another kind embodiment of the present invention.
Main element symbol description
| Pultrusion tubing | 100 |
| Hoop fiber-reinforced layer | 11 |
| Axial direction fibre enhancement layer | 12 |
| Two-dimensional fiber braid | 13 |
| Manufacture equipment | 200 |
| Core rod | 21 |
| Mould fixed station | 22 |
| Wrapping machine | 23 |
| First glue-injection machine | 241 |
| Second glue-injection machine | 242 |
| 3rd glue-injection machine | 243 |
| Creel | 25 |
| Braider | 26 |
| Mould | 27 |
| Traction machine | 28 |
| Cutting machine | 29 |
| Preparation method | 400、500 |
| Step | 401-402、501-505 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
It should be noted that be referred to as " being fixed on " another assembly when assembly, it can be directly on another assembly or can also there is assembly placed in the middle.When an assembly is considered as " connection " another assembly, and it can be directly to another assembly or may be simultaneously present assembly placed in the middle.Term as used herein " vertical ", " level ", "left", "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology.The term used the most in the description of the invention is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the present invention.Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Traditional pultruded product is made to have the defects such as hoop intensity is low for solving traditional pultrusion molding process, and the tubing formed in known manner, volume layer needs to use prepreg, cost is high, and prepreg numerical value content is high, in forming process, easily there is lamination in interlayer, the problems such as shock resistance difference, the embodiment of the present invention provides a kind of pultrusion tubing, the tube wall of described pultrusion tubing at least includes at least one of which in hoop fiber-reinforced layer and axial direction fibre enhancement layer, and is knitted to form in outermost two-dimensional fiber braid.In described tubing, at least one of which is circumferentially continuous structure.
In present embodiment, hoop fiber-reinforced layer and two-dimensional fiber braid the most continuously in a circumferential, i.e. its cross section seamless or tomography.This structure can ensure the pultrusion tubing intensity in circumference, and when by external impacts, circumference is without weak load-bearing point.
Wherein in some embodiments, the order from the inside to the outside of described tube wall includes hoop fiber-reinforced layer, axial direction fibre enhancement layer and two-dimensional fiber braid successively, or includes axial direction fibre enhancement layer, hoop fiber-reinforced layer and two-dimensional fiber braid successively.
Based on above-mentioned pultrusion tubing, the embodiment of the present invention also provides for the preparation method of a kind of pultrusion tubing, comprise the following steps that: be wound hoop fiber-reinforced layer or arrangement forms at least one of which in axial direction fibre enhancement layer, being knitted to form two-dimensional fiber braid at outermost layer, in the tubing of described formation, at least one of which is circumferentially continuous structure.
Wherein in some embodiments, described preparation method specifically includes: is wound hoop fiber-reinforced layer and arranges axially outside formation axial direction fibre enhancement layer at described hoop fiber-reinforced layer, or arrangement forms axial direction fibre enhancement layer be wound described hoop fiber-reinforced layer outside described axial direction fibre enhancement layer vertically；And it is knitted to form two-dimensional fiber braid in outermost.
Based on above-mentioned pultrusion tubing, the embodiment of the present invention also provides for the manufacture equipment of a kind of pultrusion tubing, at least one in wrapping machine that the length direction including core rod and along described core rod sets gradually or creel and braider.
Wherein in some embodiments, it is disposed with along described core rod: wrapping machine, for being wound around fiber on described core rod by predetermined winding angle；Creel, is used for introducing axial direction fibre；And braider, for weaving control of two-dimensional braided fiber according to predetermined angle of weave at outermost layer.
Wherein in some embodiments, described manufacture equipment also includes being separately positioned on the glue-injection machine after described wrapping machine, creel and braider.
Wherein in some embodiments, described manufacture equipment is also disposed with mould, traction machine and cutting machine at the length direction of the tailing edge core rod of said elements.
Wherein in some embodiments, the winding angle of described wrapping machine is 80 °-90 °, and the angle of weave of described braider is 20 °-70 °.
The tubing made according to the preparation method of the present invention forms for weaving layer by layer or being wound around or arrange, and does not have that prepreg numerical value content is high, the problems such as lamination, shock resistance difference easily occurs in interlayer in forming process between each layer.And at least one of which is circumferentially structure continuous print, seamless or tomography in the described tubing of the present invention, good mechanical performance and stable.
Additionally, when being wound around or arranging outer layer, internal layer can be formed a uniform pressure, strengthen Coating combination, efficiently solve the problem that tradition pultruded product hoop intensity is low.
Specifically, referring to Fig. 1-2, the present invention provides a kind of pultrusion tubing 100.In the present embodiment, described pultrusion tubing 100 is hollow tubular structure, and its tube wall at least includes at least one of which in hoop fiber-reinforced layer 11 and axial direction fibre enhancement layer 12, and is knitted to form in outermost two-dimensional fiber braid 13.
In one embodiment, the order from the inside to the outside of described tube wall includes hoop fiber-reinforced layer 11, axial direction fibre enhancement layer 12 and two-dimensional fiber braid 13 successively.Alternatively, in another embodiment, the order from the inside to the outside of described tube wall includes axial direction fibre enhancement layer 12, hoop fiber-reinforced layer 11 and two-dimensional fiber braid 13 successively.The fiber of the described pultrusion tubing 100 shown in Fig. 1 is filled according to hoop, axial and two dimension mode.
In the present embodiment, the pipe thickness of described pultrusion tubing 100 is more than or equal to 0.5mm.
In described pultrusion tubing 100, at least one of which is circumferentially continuous structure, i.e. seamless, tomography etc..In the present embodiment, described hoop fiber-reinforced layer 11 and described two-dimensional fiber braid 13 are circumferentially continuous structure.
In the present embodiment, described hoop fiber-reinforced layer 11 is entwined by least fiber hoop.The winding angle of described hoop fiber-reinforced layer 11 is 80 °-90 °.It is understood that winding angle of the present invention refers to the angle of fiber and described tubing axis.
In the present embodiment, described two-dimensional fiber braid 13 is formed by least two fibrages.The angle of weave of described two-dimensional fiber braid 13 is 20 °-70 °.It is understood that angle of weave of the present invention refers to the angle of fiber and described tubing axis.If described two-dimensional fiber braid 13 is formed by two fibrages, the angle of weave of the most described two-dimensional fiber braid 13 is positive and negative 20 °-70 °.
In the present embodiment, described axial direction fibre enhancement layer 12 includes many axially in parallel fibers.
In the present embodiment, the fibrous layer in described axial direction fibre enhancement layer 12 and described two-dimensional fiber braid 13 be respectively selected from following at least one: carbon fiber, glass fibre, basalt fibre or aramid fiber.
It is equipped with resin material on every layer of fibrous layer of the tube wall of described pultrusion tubing 100.In the present embodiment, described resin material is thermosetting resin, described thermosetting resin one of which in epoxy resin, polyester resin, vinylite or phenolic resin.
Refer to Fig. 3, be the arrangement schematic diagram of the manufacture equipment 200 of a kind of pultrusion tubing 100 of the embodiment of the present invention.Described manufacture equipment 200 at least includes at least one in wrapping machine 23 that core rod 21 and the length direction along described core rod 21 set gradually or creel 25 and braider 26.In the present embodiment, described manufacture equipment 200 also includes the mould fixed station 22 for fixing described core rod 21.
In the present embodiment, it is disposed with wrapping machine 23, creel 25 and braider 26 along described core rod 21.Wherein, described wrapping machine 23 is for being wound around fiber by predetermined winding angle on described core rod 21.Described creel 25 is used for introducing axial direction fibre.Described braider 26 is for weaving control of two-dimensional braided fiber according to predetermined angle of weave at outermost layer.
In the present embodiment, the winding angle of described wrapping machine 23 is 80 °-90 °, and the angle of weave of described braider 26 is 20 °-70 °.
In the present embodiment, described manufacture equipment 200 also include the first glue-injection machine 241 after being arranged on described wrapping machine 23, be arranged on described creel 25 after the second glue-injection machine 242 and be arranged on the 3rd glue-injection machine 243 after described braider 26.
In the present embodiment, described manufacture equipment 200 is also disposed with mould 27, traction machine 28 and cutting machine 29 at the length direction of the tailing edge core rod 21 of said elements.
Described traction machine 28 can use following any one: caterpillar tractor, fluid pressure type traction machine, screw type traction machine.
Refer to Fig. 4, be the schematic flow sheet of the preparation method 400 of the pultrusion tubing 100 of one embodiment of the invention.In the present embodiment, described preparation method 400 comprises the following steps that:
Step 401, is wound hoop fiber-reinforced layer or arrangement forms at least one of which in axial direction fibre enhancement layer.
In the present embodiment, described step 401 specifically includes: is wound hoop fiber-reinforced layer and arranges axially outside formation axial direction fibre enhancement layer at described hoop fiber-reinforced layer, or arrangement forms axial direction fibre enhancement layer be wound described hoop fiber-reinforced layer outside described axial direction fibre enhancement layer vertically.
Step 402, is knitted to form two-dimensional fiber braid at outermost layer.
In the present embodiment, in the tubing of described formation, at least one of which is circumferentially continuous structure.
Refer to Fig. 5, be the schematic flow sheet of the preparation method 500 of the pultrusion tubing 100 of another embodiment of the present invention.In the present embodiment, described preparation method 500 comprises the following steps that:
Step 501, is wound around fiber on core rod 21, and to described winding fiber injecting glue.
In the present embodiment, described preparation method 500 uses the manufacture equipment 200 shown in Fig. 3 to prepare described pultrusion tubing 100.In the present embodiment, also included before step 501:
Mould fixed station 22 is used to fix described core rod 21；And
Length direction along described core rod 21 sets gradually wrapping machine the 23, first glue-injection machine 241, creel the 25, second glue-injection machine 242, braider the 26, the 3rd glue-injection machine 243, mould 27, traction machine 28, cutting machine 29.
In the present embodiment, on described core rod 21, it is wound around fiber by described wrapping machine 23 by predetermined winding angle, and by described first glue-injection machine 241 to described winding fiber injecting glue.In the present embodiment, the winding angle of described wrapping machine 23 is 80 °-90 °.
Step 502, the described winding fiber after injecting glue introduces axial direction fibre, and to described axial direction fibre injecting glue.
In the present embodiment, introduce described axial direction fibre by described creel 25, and by described second glue-injection machine 242 to described axial direction fibre injecting glue.
Step 503, the described axial direction fibre outermost layer braiding two-dimensional fiber braid after injecting glue, and to described two-dimensional fiber braid impregnation.
In the present embodiment, weave control of two-dimensional braided fiber by predetermined angle of weave at outermost layer by described braider 26, and by described 3rd glue-injection machine 243 to described control of two-dimensional braided fiber impregnation.In the present embodiment, the angle of weave of described braider 26 is 20 °-70 °.
In the present embodiment, the fiber that described wrapping machine 23, described creel 25, described braider 26 are used is same fiber or not same fiber.
In the present embodiment, each glue-injection machine uses the resin material prepared in advance to corresponding fibrous layer injecting glue.
Step 504, after fiber architecture is pre-formed as the pipe geometry of design, the fiber of solidification preforming so that it is curing molding is pultrusion tubing.
In the present embodiment, described each injecting glue process uses the resin material prepared in advance to corresponding fibrous layer injecting glue, described resin material is thermosetting resin, correspondingly, after fiber architecture is pre-formed as the pipe geometry of design, be heating and curing the fiber of preforming so that it is curing molding is pultrusion tubing.
In the present embodiment, the step of the fiber of solidification preforming specifically includes:
After the temperature of described mould 27 is first adjusted to solidify the temperature of described resin, the tubing of described preforming is pulled by described traction machine 28, and be heating and curing described resin by described mould 27, the tubing curing molding making described preforming is pultrusion tubing.
In the present embodiment, the bringing-up section of described mould 27 is three sections or four-part form gradient increased temperature.The mode of heating of described mould 27 uses and heats board-like or heat block formula.
Step 505, cuts described pultrusion tubing.
In the present embodiment, according to pre-set program described pultrusion tubing cut into by described cutting machine 29 there is the tubing of predetermined length.
In the present embodiment, described core rod 21 is any one in circular, ellipse or polygon, and described pultrusion tube forming is any one in round tube, oval pipe or polygonal tube.
The preparation method of the pultrusion tubing that the present invention provides have employed the technique that online braiding is wound around pultrusion, it is possible to achieve having the epipodium continuous production to strength composite materials pultrusion tubing, production efficiency is high.
The tubing made according to the preparation method of the present invention forms for weaving layer by layer or being wound around or arrange, and does not have that prepreg numerical value content is high, the problems such as lamination, shock resistance difference easily occurs in interlayer in forming process between each layer.And at least one of which is circumferentially structure continuous print, seamless or tomography in the described tubing of the present invention, good mechanical performance and stable.
Additionally, when being wound around or arranging outer layer, internal layer can be formed a uniform pressure, strengthen Coating combination, efficiently solve the problem that tradition pultruded product hoop intensity is low.
Finally it should be noted that, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
This patent document disclosure comprises material protected by copyright.This copyright is that copyright holder owns.Copyright holder does not oppose that anyone replicates this patent document in the presence of the proce's-verbal of Patent&Trademark Office and archives or this patent discloses.
Claims (39)
1. a pultrusion tubing, the tube wall of described pultrusion tubing at least includes:
At least one of which in hoop fiber-reinforced layer and axial direction fibre enhancement layer, and be knitted to form in outermost two-dimensional fiber braid；
In described tubing, at least one of which is circumferentially continuous structure.
2. pultrusion tubing as claimed in claim 1, it is characterized in that: the order from the inside to the outside of described tube wall includes hoop fiber-reinforced layer, axial direction fibre enhancement layer and two-dimensional fiber braid successively, or includes axial direction fibre enhancement layer, hoop fiber-reinforced layer and two-dimensional fiber braid successively.
3. pultrusion tubing as claimed in claim 2, it is characterised in that: described hoop fiber-reinforced layer and described two-dimensional fiber braid are circumferentially continuous structure.
4. pultrusion tubing as claimed in claim 2, it is characterised in that: described hoop fiber-reinforced layer is entwined by least fiber hoop.
5. pultrusion tubing as claimed in claim 4, it is characterised in that: the winding angle of described hoop fiber-reinforced layer is 80 °-90 °.
6. pultrusion tubing as claimed in claim 2, it is characterised in that: described two-dimensional fiber braid is formed by least two fibrages.
7. pultrusion tubing as claimed in claim 6, it is characterised in that: the angle of weave of described two-dimensional fiber braid is 20 °-70 °.
8. pultrusion tubing as claimed in claim 2, it is characterised in that: described axial direction fibre enhancement layer includes many axially in parallel fibers.
9. pultrusion tubing as claimed in claim 1 or 2, it is characterised in that: the pipe thickness of described pultrusion tubing is more than or equal to 0.5mm.
10. pultrusion tubing as claimed in claim 2, it is characterised in that: the fibrous layer in described axial direction fibre enhancement layer and described two-dimensional fiber braid be respectively selected from following at least one: carbon fiber, glass fibre, basalt fibre or aramid fiber.
11. pultrusion tubing as claimed in claim 1, it is characterised in that: it is equipped with resin material on every layer of fibrous layer of the tube wall of described pultrusion tubing.
12. pultrusion tubing as claimed in claim 11, it is characterised in that: described resin material is thermosetting resin, described thermosetting resin one of which in epoxy resin, polyester resin, vinylite or phenolic resin.
The preparation method of 13. 1 kinds of pultrusion tubing, comprises the following steps that:
It is wound hoop fiber-reinforced layer or arrangement forms at least one of which in axial direction fibre enhancement layer；
It is knitted to form two-dimensional fiber braid at outermost layer；
In the tubing of described formation, at least one of which is circumferentially continuous structure.
The preparation method of 14. pultrusion tubing as claimed in claim 13, it is characterised in that: described preparation method specifically includes:
It is wound hoop fiber-reinforced layer and arranges axially outside formation axial direction fibre enhancement layer at described hoop fiber-reinforced layer, or arrangement forms axial direction fibre enhancement layer be wound described hoop fiber-reinforced layer outside described axial direction fibre enhancement layer vertically；
It is knitted to form two-dimensional fiber braid in outermost.
The preparation method of 15. pultrusion tubing as claimed in claim 14, it is characterised in that: described preparation method specifically includes:
Core rod is wound around fiber, and to described winding fiber injecting glue；
Axial direction fibre is introduced on described winding fiber after injecting glue, and to described axial direction fibre injecting glue；
Described axial direction fibre outermost layer braiding two-dimensional fiber braid after injecting glue, and to described two-dimensional fiber braid impregnation；And
After fiber architecture is pre-formed as the pipe geometry of design, the fiber of solidification preforming so that it is curing molding is pultrusion tubing.
The preparation method of 16. pultrusion tubing as claimed in claim 15, it is characterised in that: described each injecting glue process uses the resin material prepared in advance to corresponding fibrous layer injecting glue.
The preparation method of 17. pultrusion tubing as claimed in claim 16, it is characterized in that: described resin material is thermosetting resin, correspondingly, after fiber architecture is pre-formed as the pipe geometry of design, be heating and curing the fiber of preforming so that it is curing molding is pultrusion tubing.
The preparation method of 18. pultrusion tubing as claimed in claim 14, it is characterised in that: described preparation method further comprises the steps of:
Mould fixed station is used to fix described core rod；And
Length direction along described core rod sets gradually wrapping machine, the first glue-injection machine, creel, the second glue-injection machine, braider, the 3rd glue-injection machine, mould, traction machine, cutting machine.
The preparation method of 19. pultrusion tubing as claimed in claim 18, it is characterised in that: on described core rod, it is wound around fiber by described wrapping machine by predetermined winding angle, and by described first glue-injection machine to described winding fiber injecting glue；
Described axial direction fibre is introduced by described creel, and by described second glue-injection machine to described axial direction fibre injecting glue；And
Control of two-dimensional braided fiber is woven by predetermined angle of weave at outermost layer by described braider, and by described 3rd glue-injection machine to described control of two-dimensional braided fiber impregnation；
Wherein, each glue-injection machine uses the resin material prepared in advance to corresponding fibrous layer injecting glue.
The preparation method of 20. pultrusion tubing as claimed in claim 19, it is characterised in that: the fiber that described wrapping machine, described creel, described braider are used is same fiber or not same fiber.
The preparation method of 21. pultrusion tubing as claimed in claim 19, it is characterised in that: the winding angle of described wrapping machine is 80 °-90 °.
The preparation method of 22. pultrusion tubing as claimed in claim 19, it is characterised in that: the angle of weave of described braider is 20 °-70 °.
The preparation method of 23. pultrusion tubing as claimed in claim 19, it is characterised in that: the step of the fiber of solidification preforming specifically includes:
After the temperature of described mould is first adjusted to solidify the temperature of described resin, being pulled the tubing of described preforming by described traction machine, and be heating and curing described resin by described mould, the tubing curing molding making described preforming is pultrusion tubing.
The preparation method of 24. pultrusion tubing as claimed in claim 23, it is characterised in that: the bringing-up section of described mould is three sections or four-part form gradient increased temperature.
The preparation method of 25. pultrusion tubing as claimed in claim 23, it is characterised in that: the mode of heating of described mould uses and heats board-like or heat block formula.
The preparation method of 26. pultrusion tubing as claimed in claim 23, it is characterised in that: described traction machine uses following a kind of: caterpillar tractor, fluid pressure type traction machine, screw type traction machine.
The preparation method of 27. pultrusion tubing as claimed in claim 23, it is characterised in that: described preparation method further comprises the steps of: the described pultrusion tubing of cutting.
The preparation method of 28. pultrusion tubing as claimed in claim 27, it is characterised in that: according to pre-set program described pultrusion tubing cut into the tubing with predetermined length by described cutting machine.
The preparation method of 29. pultrusion tubing as claimed in claim 14, it is characterised in that: described core rod is any one in circular, ellipse or polygon, and described pultrusion tube forming is any one in round tube, oval pipe or polygonal tube.
The manufacture equipment of 30. 1 kinds of pultrusion tubing, including:
Core rod；
At least one in the wrapping machine set gradually along the length direction of described core rod or creel and braider.
The manufacture equipment of 31. pultrusion tubing as claimed in claim 30, it is characterised in that: it is disposed with along described core rod:
Wrapping machine, for being wound around fiber by predetermined winding angle on described core rod；
Creel, is used for introducing axial direction fibre；And
Braider, for weaving control of two-dimensional braided fiber according to predetermined angle of weave at outermost layer.
The manufacture equipment of 32. pultrusion tubing as claimed in claim 31, it is characterised in that: described manufacture equipment also includes:
It is separately positioned on the glue-injection machine after described wrapping machine, creel and braider.
The manufacture equipment of 33. pultrusion tubing as claimed in claim 32, it is characterised in that: described manufacture equipment is also disposed with mould, traction machine and cutting machine at the length direction of the tailing edge core rod of said elements.
The manufacture equipment of 34. pultrusion tubing as claimed in claim 33, it is characterised in that: the bringing-up section of described mould is three sections or four-part form gradient increased temperature.
The manufacture equipment of 35. pultrusion tubing as claimed in claim 33, it is characterised in that: the mode of heating of described mould uses and heats board-like or heat block formula.
The manufacture equipment of 36. pultrusion tubing as claimed in claim 33, it is characterised in that: described traction machine use following any one: caterpillar tractor, fluid pressure type traction machine, screw type traction machine.
The manufacture equipment of 37. pultrusion tubing as claimed in claim 33, it is characterised in that: described core rod is any one in circular, ellipse or polygon.
The manufacture equipment of 38. pultrusion tubing as claimed in claim 31, it is characterised in that: the winding angle of described wrapping machine is 80 °-90 °.
The manufacture equipment of 39. pultrusion tubing as claimed in claim 31, it is characterised in that: the angle of weave of described braider is 20 °-70 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610336832.XA CN105952981A (en) | 2016-05-20 | 2016-05-20 | Pultrusion pipe and manufacturing method and equipment thereof |
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| CN201610336832.XA CN105952981A (en) | 2016-05-20 | 2016-05-20 | Pultrusion pipe and manufacturing method and equipment thereof |
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| CN201610336832.XA Pending CN105952981A (en) | 2016-05-20 | 2016-05-20 | Pultrusion pipe and manufacturing method and equipment thereof |
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| CN106704721A (en) * | 2016-12-13 | 2017-05-24 | 安徽梦谷纤维材料科技有限公司 | Anti-corrosion high-strength oil pipeline |
| CN108381950A (en) * | 2018-03-07 | 2018-08-10 | 东莞市锦明碳纤维科技有限公司 | Fibrage tubing production method |
| CN109177238A (en) * | 2018-07-26 | 2019-01-11 | 东莞市锦明运动器材有限公司 | Fibrage bar production method and its process equipment |
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| CN106704721A (en) * | 2016-12-13 | 2017-05-24 | 安徽梦谷纤维材料科技有限公司 | Anti-corrosion high-strength oil pipeline |
| CN108381950A (en) * | 2018-03-07 | 2018-08-10 | 东莞市锦明碳纤维科技有限公司 | Fibrage tubing production method |
| CN109177238A (en) * | 2018-07-26 | 2019-01-11 | 东莞市锦明运动器材有限公司 | Fibrage bar production method and its process equipment |
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| CN111541199B (en) * | 2020-04-23 | 2023-07-14 | 湖南易净环保科技有限公司 | Production equipment and production method of waterproof cable duct |
| CN111941940A (en) * | 2020-06-21 | 2020-11-17 | 江苏澳盛复合材料科技有限公司 | Composite material section bar for vehicle bearing structure and preparation method thereof |
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| CN113290966A (en) * | 2021-05-21 | 2021-08-24 | 山东中恒景新碳纤维科技发展有限公司 | Multilayer woven fiber composite material and application thereof, ski vehicle shell and preparation method thereof |
| CN113320237A (en) * | 2021-05-28 | 2021-08-31 | 连云港中复连众复合材料集团有限公司 | Tubular composite material and preparation method and application thereof |
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