CN106641481B - Fibrage winds pultrusion pipeline, processing unit (plant) and its production method - Google Patents
Fibrage winds pultrusion pipeline, processing unit (plant) and its production method Download PDFInfo
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- CN106641481B CN106641481B CN201710041670.1A CN201710041670A CN106641481B CN 106641481 B CN106641481 B CN 106641481B CN 201710041670 A CN201710041670 A CN 201710041670A CN 106641481 B CN106641481 B CN 106641481B
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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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- 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
- B29C70/523—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement in the die
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- D06M15/568—Reaction products of isocyanates with polyethers
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
-
- 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
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of fibrage winding pultrusion pipeline, processing unit (plant) and its production methods, including the fiber conduit substrate skeleton being made of at least one layer of fibre reinforced materials, infiltration resin is formed, wherein, the resin is by dual-component polyurethane Material synthesis, comprising: 1.2:1 to 1.4:1 is synthesized in proportion for isocyanates and polyalcohol.Pipeline of the present invention infiltrates a reinforcing material by a dual-component polyurethane and is combined, the processing unit (plant) includes the glue-injection box of the static mixer and multiple sealings for mixing the dual-component polyurethane resin, using the method for low temperature and staged and layered pressurization injecting glue, well according to the requirement of the pipeline production line speed of service, retain the suitable impregnation time to guarantee to be impregnated with the reinforcing material, so as to utilize the low viscosity of the two-component resin, high-intensitive and quick setting capabilities, physical property and production efficiency to the pipeline are improved simultaneously, and it can protect environment.
Description
Technical field
The present invention relates to a kind of processing technique fields of conveyance conduit more particularly to a kind of fibrage to wind pultrusion
Formed pipe, process equipment and its production method.
Background technique
At present in the engineerings such as municipal works, building water supply and drainage, electric system, chemical industry, communication, water conservancy irrigation, all
Need a large amount of conveyance conduit.Existing conveyance conduit, is made of metal material mostly, such as steel pipe, iron pipe etc., but tradition
Metal material pipeline because the energy consumption of production process is relatively high, process is more complicated, and cost is also high, also, because of the pipe
The use environment in road is often all moister, uses rich in dirty product object accumulation, or in coastal area, metal is led because having
Electrical and oxidizable tarnish resistance, service life is often just shorter, causes the maintenance cost of facility higher.Therefore metal material
Conveyance conduit can no longer meet current social practice needs, be gradually eliminated.
Instead novel delivery duct material is twined using composite material, such as glass fiber reinforced plastics composite material
Around molding or single high molecular material, such as PVC material extrusion molding.But the conveyance conduit of these new materials production, all has
There are longitudinal rigidity deficiency, or the problem that circumferential brittleness is larger, causes to add caused by cannot bearing heavy type vehicle and landforms etc.
Load, pipeline gas engineering easy to form and fracture.
Novel delivery duct used in the prior art is in production, typically first with undulation degrees such as glass fibres
Material is used as reinforcing material, forms the skeleton of pipeline substrate, then by a steeping vat, be soaked in liquid resin material, to resin
After being impregnated with the reinforcing material completely, steeping vat is left, corresponding mold is entered back into and is heating and curing pultrusion.
At present in technology, the steeping vat is typically all opening, and in production process, the resin material of the liquid splashes
Situations such as falling, volatilizing is typical.And used liquid resin material, viscosity are larger, are typically necessary using organic solvent
It is diluted, and these organic solvents, often all contain noxious material, it is easy to welding, VOC(Volatile
Organic Compounds, organic volatile) discharge amount is larger, and environmental pollution is serious, influences workers ' health.
Currently used resin material, such as unsaturated polyester resin, vinyl ester resin, epoxy resin etc., it is special
Point is that resin adhesive liquid has longer gel time, therefore has good operability, can be very good to be impregnated with the enhancing
Material obtains preferable strength and stiffness, but the viscosity of resin adhesive liquid simultaneously is bigger, it is meant that and speed of production is slow,
Pultrusion speed be generally only 5 to 30 millimeters per minute, this can not just adapt to the quick production requirement of modern industry.
And in process of production, guarantee that resin material can sufficiently be impregnated with the reinforcing material completely, to novel delivery pipe
The strength and stiffness of road finished product, and there is great meaning.
Therefore, the pipeline production technology of existing advanced composite material (ACM), environmental pollution is very big, and can not break through always
The balance for stating intensity and speed of production, has yet to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of fibrages to wind pultrusion pipe
Road, processing unit (plant) and its production method can be with improving production efficiencies while guaranteeing effectively infiltration, and increase along described
The longitudinal rigidity and intensity of pipe lengths.
Technical scheme is as follows:
A kind of fibrage winding pultrusion pipeline, including the fibre pipe being made of at least one layer of fibre reinforced materials
Road substrate skeleton, infiltration resin are formed, wherein the resin is by dual-component polyurethane Material synthesis, comprising: isocyanates and more
1.2: 1 to 1.4: 1 synthesis in proportion of first alcohol.
The pipeline, wherein the dual-component polyurethane raw material includes: polymeric MDI and glycerine polyoxypropylene compound
1.2: 1 to 1.4: the 1 synthesis resin in proportion；For the resin at 10 DEG C -25 DEG C of temperature, pressure is higher than the environment of atmospheric pressure
The lower infiltration reinforcing material forms the pipeline.
The pipeline, wherein the reinforcing material includes internal layer, middle layer and outer layer, and the internal layer and outer layer are fiber
Braiding layer, two groups of fiber angles of repetitive unit are 35 ° of -85 ° of angles in the fiber braiding layer.
The pipeline, wherein the middle layer includes at least one circumferential fiber winding layer.
The pipeline, wherein the middle layer further includes a fiber axially tiling layer.
The pipeline, wherein the fiber is glass fibre.
The fibrage of the pipeline winds pultrusion processing unit (plant), wherein including a static mixer, for mixing
At least two dual-component polyurethane raw materials generate the two-component resin of liquid；The glue-injection box of at least one sealing, even
Lead to and receives the liquid two-component synthetic resin from the static mixer；
The environment temperature for needing to adjust the static mixer and the glue-injection box according to specific production process is 10-25
℃；
The pipeline is arranged via pipeline strengthening material described in injecting glue under the liquid synthetic resin pressure in the glue-injection box
Material is combined.
The processing unit (plant), wherein the glue-injection box connects a ultrasonic generator, generates ultrasound and is used for uniformly and adds
Immersing glue process in the speed glue-injection box.
The production method of the pipeline, wherein the following steps are included:
A) fibrous layer injecting glue resin: each fibrous layer of the reinforcing material is by corresponding seal pouring box
Synthetic resin staged and layered pressure injecting glue forms the pipeline.
The pipeline production method, wherein the fibrous layer is set as at least two fibre layers, before the step a)
It is further comprising the steps of:
A1) fibrous layer weaves: weaving at least one layer of fibrous layer by an at least braider；
A2) fibrous layer is wound: winding at least one layer of fibre outside one layer of fibrous layer of the braiding by an at least wrapping machine
Tie up winding layer.
A kind of fibrage winding pultrusion pipeline, processing unit (plant) and its production method provided by the present invention, it is described
Pipeline infiltrates a reinforcing material by a dual-component polyurethane and is combined, and the processing unit (plant) includes for mixing the two-component
One static mixer of polyurethane resin and the glue-injection box of multiple sealings, using the side of low temperature and staged and layered pressurization injecting glue
Method delays the dual-component polyurethane resin material gel well according to the requirement of the pipeline production line speed of service
Speed retains the suitable impregnation time to guarantee to be impregnated with the reinforcing material, so as to utilize the low of the two-component resin
Viscosity, high intensity and quick setting capabilities, physical property and production efficiency to the pipeline improve simultaneously, and can protect
Retaining ring border.
Detailed description of the invention
Fig. 1 is the production technological process of fibrage winding pultrusion pipeline of the present invention.
Fig. 2 is the fibrous layer skeleton structure schematic diagram of fibrage winding pultrusion pipeline of the invention.
Fig. 3 is the A-A section of the fibrous layer skeleton structure of present invention fibrage winding pultrusion pipeline shown in Fig. 2
Schematic enlarged-scale view.
Fig. 4 is that the structure of braiding layer in the fibrous layer skeleton structure of fibrage winding pultrusion pipeline of the invention is put
Big figure.
Fig. 5 is that the structure of winding layer in the fibrous layer skeleton structure of fibrage winding pultrusion pipeline of the invention is put
Big figure.
Fig. 6 is the tube wall expanded schematic diagram of fibrage winding pultrusion pipeline of the present invention.
Appended drawing reference: 1 outer layer fiber braiding layer, 2 mean fiber winding layer, 3 inner fiber braiding layer, 5 repetitive unit 21
Positive 22 33 static mixer of reversed 221 pipe mould of fiber winding layer, 34 intermediate conduit of fiber winding layer, 330 liquid
441 first glue-injection box of state synthetic resin 331 first 332 second barrel of barrel, 333 metering pump, 442 second glue-injection box 443
55 low temperature environment of third the 4th glue-injection box of glue-injection box 444,6 middle layer winds 7 finished product pipeline of fiber, 91 internal layer braider
92 first 93 second wrapping machine of wrapping machine, 94 outer braid machine, 95 metal die.
Specific embodiment
The present invention provides a kind of fibrage winding pultrusion pipeline, processing unit (plant) and its production methods, to make this
The purpose of invention, technical solution and effect are clearer, define, as follows in conjunction with drawings and embodiments to of the invention further detailed
It describes in detail bright.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Fibrage winding pultrusion pipeline of the invention and its production method, as shown in Figure 1, by one group of fiber
Reinforcing material is woven and is wound, first the fiber conduit substrate skeleton of one reinforcing material of layering formation, the reinforcing material
Each fibrous layer after its formation, i.e., into respective section sealing glue-injection box in carry out impregnation, finally again pass through a metal die
Be heating and curing pultrusion, generates final products pipeline.
In the present invention, the resin material is synthesized using the polyurethane material of two-component.Have existed this in the prior art
Kind of dual-component polyurethane material, is mixed to form by component A and B component, wherein the component A is chosen as a kind of high response
Isocyanates, such as polymeric MDI (methyl diphenylene diisocyanate), the B component are chosen as polyalcohol, such as glycerine gathers
Oxypropylene compound (polyether polyol mixtures).1.2:1 is extremely in proportion for the component A isocyanates and the B component polyalcohol
1.4:1 hybrid reaction synthesizes the dual-component polyurethane material.It is solid by two-component resin material infiltration by glass fibre
After changing pultrusion, extraordinary intensity can achieve, intensity can cooperate intensity acquired by PVC material than glass fibre
It is 8 times high；Moreover, also there is very good electrical insulating property, meanwhile, because polyurethane pultrusion material has high tenacity, so that institute
Pipeline is stated with better leakage resistance energy, thus more durable.
But the polyurethane material of prior art two-component, because being to use two kinds of chemical analysis hybrid reaction in proportion,
Such as the component A polymeric MDI and the B component glycerine polyoxypropylene compound, in the ratio hybrid reaction of 1.2:1-1.4:1
It forms, when temperature is 10 DEG C, gel time is 28 minutes, and when temperature is 19 DEG C, gel time is 21 minutes, and
When temperature is 25 DEG C, gel time is shorten to 16 minutes, but in production procedure, because gel reaction itself can release greatly
The heat of amount is accumulated in the glue-injection box, for example, the polyurethane block of solidification process, external skin temperatures up to 100 DEG C, in
For portion's temperature up to 130 DEG C, this results in its gel time to greatly shorten, and often can not be impregnated with the reinforcing material completely
When, the liquid polyurethane of the two-component just has begun gel solidification, this results in duct products resinification produced not
Uniformly, also, the dispersed polyurethane particle that has been cured is easy to that stifled mould accident occurs, and production efficiency is seriously affected, thus root
Originally this polyurethane material can not be actually used and carry out tubular object extruding, or even if processing also results in tubing produced reluctantly
Intensity it is inadequate, and production process intermediate frequency takes place frequently raw stifled mould accident, and especially under summer high temperature high humidity environment, accident occurs more
It is frequent.So hardly carrying out impregnation using this dual-component polyurethane material in actual production.
Therefore, the temperature generated is mixed to the polyurethane of the two-component and carries out the injecting glue of injecting glue to the reinforcing material
Temperature is reasonably controlled in box, for using the dual-component polyurethane material to carry out complete impregnation to the reinforcing material
With regard to critically important.Meanwhile, it is capable to extend the liquid resinous gel time that do not taken away by the reinforcing material in the glue-injection box, from
And the chance more taken away by the reinforcing material is obtained, for preventing liquid resin gel in the glue-injection box solid
Change, causes stifled mould accident also very crucial.
In one preferred embodiment of fibrage winding pultrusion pipeline of the present invention, the side of the pipeline
Wall structure is as shown in Fig. 2, the wall structure includes 3 layers: lumen outermost layer is a fiber braiding layer 1, and middle layer is circumferential
Fiber winding layer 2, innermost layer are also one layer of fiber braiding layer 3, and the specific structure is shown in FIG. 3.In the present embodiment, the fiber
Material, preferably glass fibre, main component are the silica (SiO of high-purity2), to guarantee that pipeline produced has
Lighter quality and preferable intensity.
Certainly, in the present invention, the fiber can also be selected as carbon fiber, basalt fibre, aramid fiber and polyethylene
Fiber etc., or constituted using other high molecular material fibers, as long as it is with enough intensity, and can be with subsequent high score
Subtree rouge material tight combines.
In the processing of the fibrous layer, a braider can be used, by two groups of glass fibres along a pipeline mould
Tool 221, is knitted to form with 35 ° of -85 ° of angles, as shown in figure 4, its fiber direction is preferably and duct length produced
Direction is in 45° angle, i.e., by described two groups it is fiberglass braided at repetitive unit 5 one group of diagonal and the pipeline
Length direction is parallel, namely two groups of glass fibres and pipe lengths setting symmetrical above and below that braiding is used；The glass
The diameter of glass fiber then can need to determine by production, and every km weight is typically chosen as between 2400 grams to 4800 grams, i.e.,
No. 2400-4800 (Tekes, tex), for example, in a specific embodiment, the internal diameter of the pipeline of required production is 0.5 meter,
Used fibre diameter can be 15~30 microns.
The fiber braiding layer 3 of the lumen outermost fiber braiding layer 1 and innermost layer, all can be according to the scheme by compiling
Loom needs to carry out the fiber braiding processing according to product parameters and generates.The outermost layer and innermost layer of the tube wall use
The benefit of braiding layer is its adjustable count, so that the pipeline all meets design in circumferential and longitudinal intensity
It is required that guarantee the overall performance of final products pipeline.
And the middle layer then includes at least a fiber winding layer 2, as shown in figure 5, winding fiber 6 by one group of middle layer, parallel
It is arranged to make up；The middle layer winds fiber 6, preferably glass fibre.The diameter of the middle layer winding fiber 6, can directly adopt
With fibrous material identical as the fiber braiding layer or the diameter that is close.Also, according to the thickness needs of final products pipeline,
The middle layer winding fiber 6 can wind into one or more layers, form the circle configurations of the pipeline.The middle layer winds fiber
6 arrangement mode is preferably close-packed arrays, spaces between very little, such as less than its own diameter.The fiber twines
Winding layer 2 is mainly used to improve the ability that the pipeline bears internal pressure, that is, the load of expansive force radially is resisted, by its turn
Turn to the stretching of the length direction of the middle layer winding fiber 6.
In one of the invention more preferably embodiment, the fiber winding layer 2 further includes the axial tiling layer of a fiber.I.e.
The glass fibre being close by one group of diameter is set in the fiber winding layer 2 along axial tiling, specifically can be set in institute
State upper layer or the lower layer of fiber winding layer 2, it might even be possible to by the way of braiding and in the circumferential direction in the fiber winding layer 2
Layer winding fiber 6 constitutes reticular structure, thus further increase the fiber winding layer 2 to the ability to bear of radial force, with
And the ability to bear to the axially loaded along the pipe lengths, namely increase finally formed pipeline simultaneously in axial direction
With radial toughness and intensity.
The inner fiber braiding layer 3 and the mean fiber winding layer 2 all after the completion of, then cover a fibre diameter outside
The outer layer fiber braiding layer 1 close with other two layers of fibre diameters, ultimately forms the fibrous layer of a three-decker.The outer layer
The fiber angles of fiber braiding layer 1 identical as the fiber angles of the internal layer braiding layer 3 can also be different.
At this point, the fibrous layer of the three-decker, according to the orientation of each group fiber, it is ensured that finally formed
Pipeline tube wall in diametric stress intensity and tube wall in the fiber with pipe range direction or so along the fiber braiding layer
The intensity of stress on length direction, as shown in Figure 6.
The directions of two groups of fibers of the nearly orthogonal of the outer layer fiber braiding layer 3 and the inner fiber braiding layer 1
The direction of two groups of fibers of nearly orthogonal can be consistent or slightly deviation, very big can't influence the pipeline wall surface
Intensity.
Fig. 6 is the tube wall expanded schematic diagram of inventive pipeline, is shown in figure, the tube wall of the pipeline can bear external force
Main way has: pipeline axial length direction, and the stretching by the axial direction fibre in the fiber tiling layer in the middle layer is outer to bear
Power, meanwhile, the braided fiber of the inside and outside fiber braiding layer 1 and 3, totally 4 groups of fibers, can also partially undertake the axial drawing
Stretch, the axially loaded mainly cope with the stress conditions such as possible pipeline bending；The circumferential pulling force of pipeline, in described
The stretching of layer winding fiber 6 come situations such as bearing external force, mainly cope with inside possible pipeline by compression swelling, also, for
Pressure that pipeline internal expansion generates, can also be together with the braided fiber of the braiding layer 1 and 3, and totally 5 groups of fibers undertake.And
The external force that one pipeline may be subject to is exactly axial stretching (including bending) nothing but, and radial shearing and circumferential rotation cause
Shearing force.These external force can all pass through the interior of the composition fiber of the three-layer pipe road (inside and outside braiding layer 1,3 and winding layer 2)
Portion tension is born.And it is known that the tensile strength of fibrous material, especially glass fibre, be can achieve it is very high.
Therefore fibrage winding pultrusion pipeline of the invention substantially increases the pipeline in all directions suffered by it
The ability to bear of external force.
The characteristics of pipeline of the invention, is, the reinforcing material is filled using the polyurethane resin of two-component, without
It is as in the prior art using monocomponent polyurethane resin or other common resins.Compound polyurethane material mechanical property is such as
Shown in following table:
Table 1: the mechanical property of compound polyurethane material
As can be seen from the table, the mechanical property of dual-component polyurethane composite material is all mentioned than one-component material in all respects
Height, and better corrosion resistance is shown, there is better fire protecting performance, produce highly efficient and organic because of not needing
Solvent dilution, thus it is more environmentally friendly, therefore various novel pipelines are produced more suitable for pipeline automation.
Compared with the pipeline production of one-component resin material in the prior art cooperation glass fibre, the poly- ammonia of two-component
Ester composite material cooperates glass fibre pipeline produced, because using the glue-injection box mode active under stress of sealing pressing
Impregnation, rather than the mode of the passive impregnation of opened type generallyd use such as current common resins material impregnation, so constitute pipe
The fibrous skeleton in road can be than comparatively dense, so as to which with higher reinforcing material fiber content, fiber volume fraction can
To increase to 80% or so, and the fiber content of most of non-polyurethane pultrusion products is 60% or so.In this way, higher reinforcing material
Fiber content is combined with the better resin of performance, and it is fine that this allows for the dual-component polyurethane composite material cooperation reinforcing material
The strength and stiffness for tieing up pipeline produced are more preferable.To which final products pipeline has preferably related mechanical property.
For producing the processing unit (plant) of the pipeline, as shown in Figure 1, an internal layer braider 91 is specifically included that, in institute
It states and weaves the inner fiber braiding layer 3 on pipe mould 221, one first wrapping machine 92, for being woven in the inner fiber
The positive winding positive fiber winding layer 21, one second wrapping machine 93, in the positive fiber winding layer 21 on layer 3
A reverse-winding layer 22, an outer braid machine 94, for weaving one layer of outer layer fiber braiding again outside the winding layer are wound again
Layer 1, a static mixer 33, for mixing the liquid synthetic resin 330 and a metal die that generate the dual-component polyurethane
95, under certain heating temperature, at 100-200 DEG C, the polyurethane material of the two-component to solidify wherein, pass through
After pultrusion, final finished pipeline 7 is formed；Also, after each operation equipment, i.e., in each internal layer braider 91,
Outer braid machine 94,93 downstream of the first wrapping machine 92 and the second wrapping machine are all disposed proximate to the glue-injection box of a sealing, described every
A glue-injection box is all connect by respective intermediate conduit 34 with the static mixer 33, for receiving from the static mixer
The dual-component polyurethane liquid mixed in 33, and the outermost layer by newly increasing on its internal described reinforcing material is carried out
Impregnation.
The static mixer 33 includes two entrances: the first barrel 331 and the second barrel 332, is respectively used to injection institute
State one of component A or the B component chemical raw material of two-component.Metering pump 333 below each barrel proportionally 1.2:1 ~ 1.4:1
The component A (polymeric MDI) and component B of liquid (glycerine polyoxypropylene compound) is injected into the static mixer 33 respectively, into
Row mixing and quickly through after the intermediate conduit 34 enter each glue-injection box.Because of the high reaction of the polyurethane resin
Activity is set as a sealing to adapt to low viscosity and quick gel time, each glue-injection box of the polyurethane
Resin injecting systems are exported including the entrance being oppositely arranged and one, and the diameter of the entrance and exit is according to the institute passed through
The outer diameter setting for stating each layer of reinforcing material, allows the reinforcing material accessible into the glue-injection box, while each
Liquid synthetic resin 330 in the glue-injection box cannot ooze out the entrance and the outlet；And it needs in view of the outlet
Diameter be larger than the diameter of the entrance because exit or before, the liquid synthetic resin 330 has begun portion
Segregate glue.The inside of each glue-injection box usually also applies certain pressure, such as the internal pressure of 1.5-2 atmospheric pressure, with
Accelerate its internal being impregnated with to the reinforcing material respectively passed through of the liquid synthetic resin 330, further shortens institute
Penetration period is stated, the rate of impregnation is carried out so as to increase the reinforcing material by the glue-injection box, namely described in quickening
The production efficiency of novel pipeline, meanwhile, apply certain pressure, it is also ensured that the liquid synthetic resin 330 is to the increasing
Strong the abundant of material is impregnated with, to ensure that the uniformity of impregnation in final products pipeline, improves final products pipeline
Quality and mechanical property.The glue-injection box is chemicals volatilization and the leakage prevented in reaction using the benefit of sealed set, both
Material has been saved, and has protected environment, and immersing glue process can have been accelerated by suitably pressurizeing.
A ultrasonic generator can also be set in each glue-injection box, for generating ultrasound, so that the liquid be discharged
The bubble that may be mingled in polyurethane resin, with acceleration and the further uniformly liquid two-component polyurethane resin material is to institute
State the immersing glue process of reinforcing material.
Dual-component polyurethane of the present invention is converted to from the pipeline production method of conventional resins cooperation glass fibre to match
Also fairly simple convenience and economy, the equipment for needing to reequip mainly include two parts to the production system of conjunction glass fibre: increasing institute
It states static mixer 33 and changes the glue-injection box that the open steeping vat is sealing.Because the polyurethane is bi-component
System, therefore need special metering and mixing device.Meanwhile because polyurethane resin reactivity, traditional open type tree
Rouge steeping vat has been not suitable with instead the glue-injection box of the multiple sealings of subsection setup, internal to maintain certain pressure,
To accelerate infiltration of the polyurethane resin to the reinforcing material, namely the impregnation side under pressure is changed to by free impregnation mode
Formula, to accelerate the impregnation process.Meanwhile because the gelation rate of the polyurethane resin is too fast, it is also necessary to by the static state
In mixer and the glue-injection box, lower temperature is set as in the especially described glue-injection box.
In one embodiment of the invention, the production method of the tencel braiding winding pultrusion pipeline, such as
Shown in the production procedure schematic diagram of Fig. 1, two kinds of ingredients of the dual-component polyurethane raw material, for example, the A expects: liquid polymeric
MDI and B material: glycerine polyoxypropylene compound is separately added into the first barrel 331 and the second barrel 332, by respective meter
Amount pump 333 injects in a static mixer 33 according to the ratio of 1.2:1-1.4:1, and the raw reaction of hybrid concurrency generates liquid synthesis
Resin 330, then quickly through the output of multiple groups intermediate conduit 34 into the glue-injection box for the multiple sealings being disposed proximate to.
While preparing the dual-component polyurethane raw material, the internal layer braider 91 on the pipe mould 221,
Using two strands of fibers with the direction at 35-85 degree angle, the table that an inner fiber braiding layer 3 is covered in the pipe mould 221 is woven
Face, one group of diagonal of each repetitive unit of the fiber braiding layer 3 is axial parallel with the pipe mould 221,
Namely two strands of fibers are all symmetrical arranged with the axial of the pipe mould 221 in both sides.One more preferably embodiment is institute
It states in two strands of braided fibers, one fiber being axially arranged can also be further added by, three strands of fibers weave together, are produced with increasing
Pipeline in axial tensile capacity.The inner fiber braiding layer 3 enters the first glue-injection box 441, under stress described in receiving
First glue-injection box 441 is left after the impregnation of dual-component polyurethane liquid synthetic resin 330, subsequently into the first wrapping machine 92
In, receive the winding of fiber forward direction, form positive fiber winding layer 21, enter back into the second glue-injection box 442, receives pressure note
Glue mainly carries out impregnation to the positive fiber winding layer 21 just generated；After leaving second glue-injection box 442,
Channel fibres layer generated enters the second wrapping machine 93, receives the winding of reversed fiber, and after generating reversed fiber winding layer 22,
Into receiving impregnation in third glue-injection box 443；And the mean fiber winding layer 2 is formed, the fiber of the forward and reverse twines
The thickness of winding layer is determined by the number of plies that fiber is wound, and the final finished pipe that the number of plies of fiber winding produces required for then depending on
The pipe thickness of the pipe thickness requirement in road 7, i.e., the required final finished pipeline 7 produced is mainly wound by the mean fiber
The thickness of layer 2, i.e. winding layer number determine.After the completion of the mean fiber winding layer 2, the few fibers of the part impregnation increase
Strong material continues on the pipe mould 221 and moves ahead, while receiving an outer braid machine 94 and forming an outer layer outside it again
Fiber braiding layer 1, the outer layer fiber braiding layer 1 and the structure of the inner fiber braiding layer 3 and setting are all similar；It enters back into
Receive injecting glue in 4th glue-injection box 444, after leaving the 4th glue-injection box 444, that is, forms the young bird of the final pipeline of partial gel
Shape；The pipeline blank enters back into the metal die 95 of a heating, and in 100-200 DEG C of temperature, be heating and curing pultrusion, shape
At final products pipeline.
In the present embodiment, the immersing glue process of the pipeline layers of reinforcement, using the method for staged and layered impregnation, Ke Yibao
Demonstrate,prove every layer of fiber can in the short time impregnation it is complete, to guarantee the physical property of final products pipeline.
In some cases, in order to cooperate the speed of service of production line, or in order to guarantee the liquid synthetic resin 330
It is thoroughly impregnated the reinforcing material, needs suitably to slow down the gelation rate of the liquid synthetic resin 330, and this passes through adjusting institute
The temperature of static mixer 33 and the glue-injection box is stated to complete.The static mixer 33 and the glue-injection box can be placed in
It in one low temperature environment 55, such as is placed in cold water or freezing environment, preferably in the phase for holding the liquid synthetic resin
It answers inside container, inside 33 inside of static mixer and the glue-injection box, setting is for cooling device, such as cold water pipe
Road etc., so that it may reduce the curing rate of the resin by directly reducing the temperature of the liquid synthetic resin 330, extend
Curing time improves the liquid synthetic resin 330 and is impregnated with rate to the reinforcing material, to increase novel fibre produced
The uniformity and mechanical strength of dimension braiding winding pultrusion pipeline.
Specifically, be exactly before entering the solidification equipment 95 heating, the operation for generating each layer fibrous layer and
The operation of each layer fibrous layer impregnation is all in a low temperature environment 55, is most preferably to lead to the temperature of the liquid synthetic resin 330
It crosses in each relevant device and cooling device is set, such as the modes such as cooling water pipeline, directly control as low temperature, actual temp root
It needs to control according to pipeline produced, mainly be determined by the pipe thickness of the pipeline, i.e., by the impregnation time actually required
It determines.General control is at 10 DEG C ~ 25 DEG C, because being measured according to experiment: described by polymeric MDI and glycerine polyoxy at 25 DEG C
Allyl is 16 minutes according to the liquid polyurethane gel time that the ratio of 1.2-1.4:1 mixes, and at 10 DEG C, the liquid
The polyurethane gle time of state two-component is extended for 28 minutes, it means that can be according to the reality of the pipeline of required production
Border requires, and controls the operating time of the resin by controlling the temperature of the liquid two-component polyurethane resin, extends institute
The gel time for stating resin allows the resin to be maintained at low viscosity state for a long time；And the time and profile required for impregnation
Structure, glass fiber content, resin viscosity, the factors such as impregnation pressure are related, so, it in actual production, can be according to actual production
Needs, the suitable operating time is determined by testing, to pass through the temperature for controlling the liquid two-component polyurethane resin
It spends to control the time required for impregnation, obtains the optimum balance between production efficiency and pipeline strength produced and rigidity.
The practical impregnation time of pipeline produced can draw the enhancing by control pulling equipment in production
The speed that material moves in the pipe mould 221 controls, i.e., shifting of the pipeline produced on the pipe mould 221
Dynamic speed, the pipeline receive the time of impregnation by the glue-injection box, and the liquid synthetic resin 330 in the glue-injection box coagulates
Glue time, the injecting glue speed of the liquid synthetic resin 330, these amounts are all mutually related, need according to actual needs
Measurement, and be adjusted by temperature setting.
Under normal conditions, the forward speed of the pipeline on the pipe mould 221, i.e. the operation speed of production line are placed on
Degree is controlled in 10 ~ 60mm/min, thus can not only guarantee that the liquid synthetic resin 330 was thoroughly impregnated the reinforcing material, but also
The production efficiency of the pipeline can be improved.
In conclusion a kind of fibrage winding pultrusion pipeline, processing unit (plant) and its production provided by the present invention
Method is more by the temperature and subsection setup that control liquid polyurethane resin using the resin material of the polyurethane of two-component
A seal pouring box after each fibrous layer generation device prolongs well according to the requirement of the pipeline production line speed of service
The speed for delaying the two-component resin material gel retains the enough impregnation time to guarantee to be impregnated with the fibrous layer skeleton, pole
The big intensity for increasing the pipeline.The present invention can utilize low viscosity, high intensity and the rapid curing energy of two-component resin
Power, balance improve the performance and production efficiency of the pipeline.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, and all these modifications and variations all should belong to appended claims of the present invention
Protection scope.
Claims (9)
1. a kind of fibrage winds pultrusion pipeline, including the fiber conduit substrate being made of multi-layer fiber reinforcing material
Skeleton, infiltration resin are formed, which is characterized in that the resin is by dual-component polyurethane Material synthesis, comprising: isocyanates and more
1.2: 1 to 1.4: 1 synthesis in proportion of first alcohol;
The dual-component polyurethane raw material includes: polymeric MDI and glycerine polyoxypropylene compound in proportion 1.2: 1 to 1.4: 1
Synthesize the resin；For the resin at 10 DEG C -25 DEG C of temperature, pressure infiltrates the reinforcing material shape in the environment of being higher than atmospheric pressure
At the pipeline；
The resin is by the glue-injection box of multiple sealings of subsection setup, and under certain internal pressure, staged and layered injecting glue soaks
Moisten the reinforcing material.
2. pipeline according to claim 1, which is characterized in that the reinforcing material includes internal layer, middle layer and outer layer, described
Internal layer and outer layer are fiber braiding layer, and two groups of fiber angles of repetitive unit are 35 ° of -85 ° of angles in the fiber braiding layer.
3. pipeline according to claim 2, which is characterized in that the middle layer includes at least one circumferential fiber winding layer.
4. pipeline according to claim 3, which is characterized in that the middle layer further includes a fiber axially tiling layer.
5. pipeline according to any one of claims 1 to 4, which is characterized in that the fiber is glass fibre.
6. a kind of fibrage for producing pipeline as described in claim 1 winds pultrusion processing unit (plant), feature exists
In, including a static mixer, it is used to mix at least two dual-component polyurethane raw materials, generates the two-component tree of liquid
Rouge；With the glue-injection box of multiple sealings, the two-component resin of the liquid from the static mixer is connected to and received；
The temperature for needing to adjust the static mixer and the glue-injection box according to specific production process is 10-25 DEG C；
The pipeline is arranged via strengthening material described in injecting glue under the bi-component resin pressure of the liquid in the glue-injection box
Material is combined.
7. processing unit (plant) according to claim 6, which is characterized in that the glue-injection box connects a ultrasonic generator, produces
Raw ultrasound is used for uniformly and accelerates the immersing glue process in the glue-injection box.
8. a kind of production method of pipeline according to claim 1, which comprises the following steps:
A) fibrous layer injecting glue resin: each fibrous layer of the reinforcing material is by the synthesis in corresponding seal pouring box
Resin staged and layered pressure injecting glue forms the pipeline.
9. pipeline production method according to claim 8, which is characterized in that the reinforcing material is set as at least two layers,
It is further comprising the steps of before the step a):
A1) fibrous layer weaves: weaving at least one layer of fibrous layer by an at least braider；
A2) fibrous layer is wound: winding at least one layer of fiber winding layer outside the fibrous layer of braiding by an at least wrapping machine.
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| CN107383846B (en) * | 2017-06-21 | 2023-09-12 | 南京经略复合材料有限公司 | Glass fiber reinforced two-component pultrusion polyurethane material and application thereof in magnetic steel battens of direct-drive permanent magnet synchronous wind driven generator |
| CN107336448B (en) * | 2017-08-02 | 2023-10-13 | 黄明发 | Production device for straight-pull winding composite glass fiber reinforced plastic pipe |
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| CN111546670A (en) * | 2019-02-12 | 2020-08-18 | 三河宇达科技发展有限责任公司 | Equipment for enhancing infiltration effect of resin in base material fiber in production of QFRP optical cable reinforcing core |
| CN110394999B (en) * | 2019-07-29 | 2021-03-23 | 桂林航天工业学院 | Carbon fiber composite material melting and impregnating equipment for automobile |
| CN111037945A (en) * | 2019-12-31 | 2020-04-21 | 重庆泓通管业有限公司 | Forming process of composite pipeline |
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| CN112944054A (en) * | 2020-12-29 | 2021-06-11 | 安徽永高塑业发展有限公司 | High-strength high-sealing-performance glass fiber winding protective sleeve and preparation method thereof |
| CN114228198A (en) * | 2021-12-17 | 2022-03-25 | 永高股份有限公司 | Processing method of high-pressure-resistant polyurethane winding pultrusion pipeline |
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