CN108437489A - Rigid flange with rib composite material foam sandwich cylinder and neck and preparation method thereof - Google Patents
Rigid flange with rib composite material foam sandwich cylinder and neck and preparation method thereof Download PDFInfo
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- CN108437489A CN108437489A CN201810272998.9A CN201810272998A CN108437489A CN 108437489 A CN108437489 A CN 108437489A CN 201810272998 A CN201810272998 A CN 201810272998A CN 108437489 A CN108437489 A CN 108437489A
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- multiple material
- foam
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- neck
- flange
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- 239000006260 foam Substances 0.000 title claims abstract description 128
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 184
- 230000002787 reinforcement Effects 0.000 claims description 77
- 239000004744 fabric Substances 0.000 claims description 66
- 229920005989 resin Polymers 0.000 claims description 52
- 239000011347 resin Substances 0.000 claims description 52
- 239000000835 fiber Substances 0.000 claims description 36
- 206010058483 Nuchal rigidity Diseases 0.000 claims description 32
- 150000001875 compounds Chemical class 0.000 claims description 17
- 239000011159 matrix material Substances 0.000 claims description 17
- 239000012779 reinforcing material Substances 0.000 claims description 17
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 9
- 229920002748 Basalt fiber Polymers 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920001568 phenolic resin Polymers 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 229920005749 polyurethane resin Polymers 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 239000005011 phenolic resin Substances 0.000 claims description 6
- 229920007790 polymethacrylimide foam Polymers 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 229920002873 Polyethylenimine Polymers 0.000 claims 2
- 229920001601 polyetherimide Polymers 0.000 claims 2
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 239000011208 reinforced composite material Substances 0.000 abstract 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 8
- 239000003365 glass fiber Substances 0.000 description 7
- 238000001723 curing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 229920006231 aramid fiber Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 229920006387 Vinylite Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 238000000643 oven drying Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 229920013657 polymer matrix composite Polymers 0.000 description 1
- 239000011160 polymer matrix composite Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a rigid flange with a neck of a reinforced composite material foam sandwich cylinder and a preparation method thereof, wherein a main body of the rigid flange with the neck comprises a neck part, a supporting part and a flange part, the neck part is a foam sandwich cylinder with a hollow cylindrical structure, the supporting part is in a hollow circular truncated cone-shaped structure, the flange part is in a disc-shaped or circular ring-shaped structure, one end part of the neck part is connected with the smaller end of the supporting part, and the larger end of the supporting part is connected with the flange part; one end of the foam sandwich cylinder is provided with a connecting flange which is used for being connected with another rigid flange with a neck, and a steel plate is added in the middle of the flange part; the invention provides a rigid flange with a neck, which effectively solves the connection problem of a composite material foam sandwich cylinder on the premise of hardly improving the self weight of the structure, and simultaneously provides a preparation method which has low cost and stable performance and can be used for preparing the rigid flange with a neck of a large-size reinforced composite material foam sandwich cylinder.
Description
Technical field
The invention belongs to new material new construction and composite structure fields, are related to a kind of bubble suitable for fast erecting and repairing
Foam sandwich cylinder connecting flange and preparation method thereof, specifically a kind of reinforcement answer material foam core cylinder band neck rigid flange and its
Preparation method.
Background technology
The emergency columnar stays component of field of civil engineering is made frequently with metal material, and dead weight is larger, removes
Fortune is inconvenient with operation, extends and sets up the time, and in addition metal material is perishable, and maintenance costs is high, affects the normal of structure
Using with the service life.Using new developing material lightweight high bearing capacity, easily carry set up, corrosion resistant emergency bridge pier can be
Metal material is replaced to a certain extent, and the thing followed must just solve the connectivity problem of itself and up-down structure, therefore design one
It is extremely urgent that kind reinforcement answers material foam core cylinder band neck rigid flange.
Fiber-reinforced resin matrix compound material has that specific strength is high, specific stiffness is big, the advantages such as corrosion-resistant, by it as covering
Skin, then prepared by two foams that covering central filler density is low, thickness is big made of multiple material foam core cylinder band neck rigidity
Flange has the advantages such as high-strength light, corrosion-resistant.It is weak to the enabling capabilities of multiple material covering but since the rigidity of foam is relatively low, it leads
Covering when axial compression is caused to be easy to happen local buckling；On the other hand, the bond strength of covering and foam is generally weaker, is easy out
Existing face core unsticking failure.Disadvantages described above causes multiple material foam core cylinder connecting flange to cannot be satisfied big bearing requirements.And it is multiple at present
The preparation method of material foam core cylinder is pasted with hand based on technique and secondary curing technique, and small size component can only be made.
Invention content
The technical problem to be solved by the present invention is to, the shortcomings that overcoming the prior art, a kind of reinforcement is provided and answers material foam folder
Core cylinder band neck rigid flange and preparation method thereof, the present invention overcomes multiple material foam core cylinder connecting flange local stability difference and
It the problem of covering and sandwich layer easy unsticking, provides a kind of under the premise of hardly increasing dead load, effectively solves multiple material foam
The band neck rigid flange of sandwich cylinder connectivity problem, while a kind of reinforcement that easy to operate, of low cost, performance is stablized being provided and answers material
Preparation method of the foam core cylinder with neck rigid flange.
In order to solve the above technical problems, a kind of reinforcement of present invention offer answers material foam core cylinder band neck rigid flange, band
The main body of neck rigid flange includes neck, support portion and flange portion, and neck is the foam core cylinder of hollow cylindrical structure, support
Portion is hollow round table shape structure, and flange portion is disc or cirque structure, and the one end of neck connects the smaller by one of support portion
End, larger one end connecting flange portion of support portion；Connecting flange is set in one end of foam core cylinder, is used for and another band neck
Rigid flange is connected, and steel plate is added among flange portion；
Neck includes multiple material inside panel and multiple material exterior skin, and vertical plane bubble is evenly distributed between multiple material inside panel and multiple material exterior skin
Foam lath and multiple material strip reinforcement, multiple material strip reinforcement are spacedly distributed between vertical plane foam lath, are added by multiple material strip
The multiple material inside panel of muscle connection and multiple material exterior skin；
Support portion includes multiple material inside panel and multiple material exterior skin, and inclined-plane is evenly distributed between multiple material inside panel and multiple material exterior skin
Foam lath and multiple material triangle reinforcement, multiple material triangle reinforcement are spacedly distributed between inclined-plane foam lath, pass through multiple material triangle
The multiple material inside panel of reinforcement connection and multiple material exterior skin；
Flange portion is once equipped with multiple material exterior skin, steel plate and multiple material inside panel, flange portion and is equipped with mounting hole, is convenient for from top to bottom
Using being bolted between band neck rigid flange.
The technical solution that the present invention further limits is：
Aforementioned multiple material inside panel and multiple material exterior skin be fiber cloth at.
Aforementioned multiple material inside panel and multiple material exterior skin are made of fiber-reinforced resin matrix compound material, fiber-reinforced resin
Reinforcing material in based composites is one kind in glass fabric, carbon cloth, basalt fiber cloth and aryl fiber cloth
Or it is a variety of, the resin in fiber-reinforced resin matrix compound material is one kind in epoxy resin, phenolic resin, polyurethane resin.
The cross section of aforementioned vertical plane foam lath is isosceles trapezoid, and vertical plane foam lath is PVC foams, PMI foams, PU bubbles
It is one or more in foam or PEI foams.
Aforementioned multiple material strip reinforcement is constituted for fiber-reinforced resin matrix compound material, in fiber-reinforced resin matrix compound material
Reinforcing material be glass fabric, carbon cloth, basalt fiber cloth and aryl fiber cloth in it is one or more, fiber increase
Resin in strong polymer matrix composites is one kind in epoxy resin, phenolic resin and polyurethane resin.
Aforementioned chamfers foam lath be triangular prism structure, inclined-plane foam lath be PVC foams, PMI foams, PU foams or
It is one or more in PEI foams.
Aforementioned multiple material triangle reinforcement is triangle three-dimensional-structure, and multiple material triangle reinforcement is constituted for fiber-reinforced resin base, fiber
Reinforcing material in reinforced resin base is one kind in glass fabric, carbon cloth, basalt fiber cloth and aryl fiber cloth
Or it is a variety of, the resin in fiber-reinforced resin matrix compound material is one kind in epoxy resin, phenolic resin, polyurethane resin.
The outer diameter in foregoing flange portion is more than the outer diameter of the larger one end of support portion, and the outer diameter of the larger one end of support portion is more than neck
Outer diameter.Flange portion is embedded with steel plate.
Further,
The present invention also provides a kind of reinforcements to answer preparation method of the material foam core cylinder with neck rigid flange, including following specific step
Suddenly：
（One）Prepare vertical plane foam lath and inclined-plane foam lath：According to scantling design requirement, in advance by foam flat plate cutting
It is trapezoidal vertical plane foam lath and generally triangular prism shaped inclined-plane foam lath to be cut into cross section；
（Two）Multiple material reinforcement：It cuts identical with vertical plane foam lath side view and size fiber cloth, is cut several
Between the fiber cloth-filled foam lath to vertical plane, filament is used in combination to fix fiber cloth, it is spare；It cuts and inclined-plane foam lath
Fibre is used in combination by between several fiber cloth-filled foam laths to inclined-plane cut in side view and the identical fiber cloth of size
Dimension silk fixes fiber cloth, spare；
（Three）Prepare preform：In RTM mold after smearing release agent, the reinforcing material of inside panel is first wrapped up on mold,；
Then in foam core cylinder one end by the reinforcing material outward flanging of inside panel, embedding steel plate while flange；Vertical plane is steeped
Foam lath is along the circumferential direction closely arranged on inside panel reinforcing material, and filament banding fixed is used in combination, by inclined-plane cystosepiment
Item is along the circumferential direction closely arranged at vertical plane foam lath surrounding, and filament banding fixed is used in combination；The increasing of exterior skin is wrapped up again
Strong material, the reinforcing material outward flanging of exterior skin, is used to prepare flange portion, finally obtains preform；
（Four）It assembles vacuum and imports formation system：External mold is encapsulated on above-mentioned preform forms a sealing system；
（Five）Check air-tightness：Bleeding point is connect with vacuum system with excessive glue pipe, sealing system is vacuumized, checks mold envelope
Close the air-tightness of system；
（Six）Injecting glue and curing molding：With injected rubber hose by gum-injecting port and equipped with the container phase of resin system after confirmation air-tightness is good
Even, resin is pumped into mold close system under negative pressure, and resin by helix tube and flow-guiding screen homogeneous immersion fiber cloth and is being filled
Gap between foam and fiber cloth, curing molding；
（Seven）Post-processing：Mold is taken out, flash of polishing from the formed body after solidification, reinforcement can be obtained and answer material foam folder
Core cylinder band neck rigid flange.
The key technology breakthrough of the present invention is to have used reinforced bands neck rigid flange, have the beneficial effect that（1）The multiple material of setting
The rigid flange of triangle reinforcement（There is ribbed stiffener flange）, to achieve the purpose that more efficient performance composite material strength.First, it is multiple
Its own has the characteristics of high intensity ratio, high rigidity ratio to material reinforcement, and arranged direction is consistent with Impact direction, therefore multiple material reinforcement
Itself can effectively share external load, improve bearing capacity；Second, the multiple material reinforcement and again material inside panel, again material exterior skin,
Foam lath cures through resin-bonded one, forms organic whole, improves overall stiffness, overall stability, anti-bending strength, have
Limit to effect prying force effect（When flange tension, two disks open the effect of flanged plate inner edge under tension up and down, and outer rim is by bolt
Constraint is mutually held out against, and leads to bolt strained increase）；Third, the multiple inside and outside covering of material are enhanced by grid reinforcement, can efficiently prevent
Only local buckling occurs for the inside and outside covering of composite material.（2）Face core bond strength is high.Multiple material reinforcement and Inner Mongol in the preparation method
Skin, exterior skin fiber cloth come into contact in a large area, all fiber cloths are impregnated with by resin under negative pressure, make its integrally cure, and take out
Preformed member bears the negative pressure of 0.1 atmospheric pressure after vacuum, ensure that each component uniform close is bonded, therefore technique preparation
Multiple material foam core cylinder has superior face core bond strength, can effectively prevent covering and unsticking failure occurs with sandwich layer.（3）Setting
The band neck of multiple material reinforcement（Cylindrical portions）Flange, convenient for assembling and producing in batches with existing structure, and the preparation method is at low cost
It is honest and clean, large-size components can be prepared.（4）It is filled with foam lath between multiple material inside panel, multiple material exterior skin, multiple material reinforcement, it should
On the one hand foam lath ensure that the molding of covering and reinforcement as mold, on the other hand to multiple material inside panel, answer material exterior skin,
Multiple material reinforcement plays elastic foundation supporting role, will also effectively improve its anti-local buckling's ability.（5）With high-strength light, easily
In carrying and setting up, the advantages such as corrosion-resistant service free can be used for all kinds of columnar stays structures of field of civil engineering.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of inclined-plane foam lath；
Wherein, 1- answers material inside panel, 2- vertical plane foam laths, and 3- answers material strip reinforcement, the inclined-planes 4- foam lath, and 5- answers material triangle
Reinforcement, 6- steel plates, the holes 7-, 8- answer material exterior skin.
Specific implementation mode
Embodiment 1
The present embodiment provides a kind of reinforcements to answer material foam core cylinder band neck rigid flange, and structure is as shown in Figure 1, with neck rigid flange
Main body include neck, support portion and flange portion, neck is the foam core cylinder of hollow cylindrical structure, and support portion is open circles
Platform shape structure, flange portion are disc or cirque structure, and the one end of neck connects smaller one end of support portion, support portion
Larger one end connecting flange portion；Connecting flange is set in one end of foam core cylinder, is used for and another band neck rigid flange phase
Steel plate is added in connection, flange portion centre；Neck includes outside multiple material inside panel 1 and multiple material exterior skin 8, again material inside panel 1 and multiple material
Vertical plane foam lath 2 and multiple material strip reinforcement 3 are evenly distributed between covering 8, multiple material strip reinforcement 3 is spacedly distributed in vertical plane
Between foam lath 2, multiple material inside panel 1 and multiple material exterior skin 8 are connected by multiple material strip reinforcement 3；Support portion includes in multiple material
Covering 1 and multiple material exterior skin 8, inclined-plane foam lath 4 and multiple material are evenly distributed between multiple material inside panel 1 and multiple material exterior skin 8
Triangle reinforcement 5, multiple material triangle reinforcement 5 are spacedly distributed between inclined-plane foam lath 4, are connected by multiple material triangle reinforcement 5 multiple
Material inside panel 1 and multiple material exterior skin 8；Flange portion is once equipped with multiple material exterior skin 8, steel plate 6 and multiple material inside panel 1 from top to bottom,
Flange portion is equipped with mounting hole 7, convenient between band neck rigid flange using being bolted.
Aforementioned multiple material inside panel 1 and multiple material exterior skin 8 for fiber cloth at.Aforementioned multiple material inside panel 1 and multiple material exterior skin 8
It is made of fiber-reinforced resin matrix compound material, the reinforcing material in fiber-reinforced resin matrix compound material is glass fibre
It is one or more in cloth, carbon cloth, basalt fiber cloth and aryl fiber cloth, in fiber-reinforced resin matrix compound material
Resin is one kind in epoxy resin, phenolic resin, polyurethane resin.
The cross section of aforementioned vertical plane foam lath 2 is isosceles trapezoid, and vertical plane foam lath 2 is PVC foams, PMI foams, PU
It is one or more in foam or PEI foams.Aforementioned multiple material strip reinforcement 3 is constituted for fiber-reinforced resin matrix compound material, fine
It is glass fabric, carbon cloth, basalt fiber cloth and aramid fiber to tie up the reinforcing material in reinforced resin based composites
One or more in cloth, the resin in fiber-reinforced resin matrix compound material is epoxy resin, phenolic resin and polyurethane tree
One kind in fat.
Aforementioned chamfers foam lath 4 be triangular prism structure, inclined-plane foam lath 4 be PVC foams, PMI foams, PU foams or
It is one or more in PEI foams.Aforementioned multiple material triangle reinforcement 5 is triangle three-dimensional-structure, and multiple material triangle reinforcement 5 is fiber reinforcement
Resin base is constituted, and the reinforcing material in fiber-reinforced resin base is glass fabric, carbon cloth, basalt fiber cloth and aramid fiber
One or more in fiber cloth, the resin in fiber-reinforced resin matrix compound material is epoxy resin, phenolic resin, polyurethane
One kind in resin.The outer diameter in foregoing flange portion is more than the outer diameter of the larger one end of support portion, and the outer diameter of the larger one end of support portion is big
In the outer diameter of neck.Flange portion is embedded with steel plate.
The present embodiment is provided with the rigid flange of multiple material triangle reinforcement（There is ribbed stiffener flange）, to reach more efficient performance
The purpose of composite material strength.First, answering material reinforcement, its own has the characteristics of high intensity ratio, high rigidity ratio, and arranged direction
It is consistent with Impact direction, therefore multiple material reinforcement itself can effectively share external load, improve bearing capacity；Second, the multiple material
Reinforcement cures with multiple material inside panel, multiple material exterior skin, foam lath through resin-bonded one, forms organic whole, improves whole
Body rigidity, overall stability, anti-bending strength effectively limit prying force effect（When flange tension, flanged plate inner edge under tension
Two disks open up and down for effect, and outer rim is mutually held out against by bolt constraint, leads to bolt strained increase）；Third, the inside and outside illiteracy of multiple material
Skin is enhanced by grid reinforcement, can efficiently prevent in multiple material, local buckling occurs for multiple material exterior skin.
Face core bond strength is high.Multiple material reinforcement and the fiber cloth of inside panel, exterior skin come into contact in a large area in the preparation method,
All fiber cloths are impregnated with by resin under negative pressure, so that it is integrally cured, and vacuumize rear preformed member and bear 0.1 atmospheric pressure
Negative pressure, ensure that each component uniform close be bonded, therefore the technique prepare multiple material foam core cylinder have superior face core
Bond strength can effectively prevent covering and unsticking failure occur with sandwich layer.
The band neck of multiple material reinforcement is set（Cylindrical portions）Flange, convenient for connecting and producing in batches with existing structure, and the system
Preparation Method is of low cost, can prepare large-size components.
It is filled with foam lath between multiple material inside panel, multiple material exterior skin, multiple material reinforcement, on the one hand which makees
It ensure that the molding of covering and reinforcement for mold, elasticity on the other hand played to multiple material inside panel, multiple material exterior skin, multiple material reinforcement
Base support acts on, and will also effectively improve its anti-local buckling's ability.
It with high-strength light, is easily portable and sets up, the advantages such as corrosion-resistant service free can be used for field of civil engineering
All kinds of columnar stays structures.
Embodiment 2
It present embodiments provides a kind of reinforcement and answers preparation method of the material foam core cylinder with neck rigid flange, by multiple material Inner Mongol
Multiple material rib between skin, multiple material exterior skin, the foam being clipped between two pieces of coverings, foam and two coverings is formed；It is enhanced
The height of multiple material foam core cylinder is 1000mm, internal diameter 200mm；Multiple material inside panel, multiple material exterior skin are all by glass fibre
Twin shaft cloth reinforced resin base answers material composition, and thickness is all 3mm；Foamed material is that density is 100kg/m3PVC foams, thickness is
40mm；Multiple material rib is answered material by glass fibre unidirectional cloth reinforced resin base and is constituted.
It comprises the following specific steps that：
（One）Prepare PVC foams:According to scantling design requirement, PVC foams, density are provided by Lars Co., Ltd of Beijing section
For 100kg/m3, foam lath is placed in baking oven drying 4 hours under 50 DEG C of ventilated environments by thickness 40mm, spare.
（Two）Multiple material reinforcement：Glass fibre unidirectional cloth is cut into a plurality of long 1000mm, the narrow cloth of wide 6mm using rag cutter
Item, glass fibre unidirectional cloth thickness in monolayer is 0.4mm, between the narrow cloth of well cutting is laid with foam in layer, between each
Every 10 layers of laying；
（Three）Prepare preform：In the golden RTM mold that outer diameter is 200mm after smearing release agent, 5 are then wound on mold
Slice width degree is 1000mm, and thickness is the two-way cloth of glass fibre of 0.6mm, and filament is used in combination to bind；In foam core cylinder one end
By inside panel outward flanging, embedding steel plate while flange；Then the PVC foams after reinforcement are buckled and are bundled with filament solid
It is fixed；Reinforcement back bevel PVC foams are along the circumferential direction closely arranged at vertical plane foam lath surrounding, are used in combination filament binding solid
It is fixed；The last 5 slice width degree that wind again are 1000mm, and thickness is the two-way cloth of glass fibre of 0.6mm, and is also bound with filament,
Exterior skin outward flanging, is used to prepare flange portion, finally obtains preform；
（Four）It assembles vacuum and imports formation system：External mold is encapsulated on the preform forms a sealing system；
（Five）Check air-tightness：Bleeding point is connect with vacuum system with excessive glue pipe, sealing system is vacuumized, checks mold envelope
Close the air-tightness of system；
（Six）Injecting glue and curing molding：Resin selects 770V type vinylite room temperature resins, with curing agent and coagulant according to
100:1:1 weight ratio is deployed；Exhaust tube is connected with vacuum pump, adhesive pouring nozzle, which is connected with injected rubber hose and is inserted into injected rubber hose, to be set
Resin system, opens vacuum pump, resin system under the action of negative pressure by injected rubber hose, be evenly distributed in each angle of preform
It falls, 45 minutes or so rear closing vacuum pumps, ambient temperature curing 7 hours.
（Seven）Post-processing：Mold is taken out, flash of polishing from the formed body after solidification, reinforcement can be obtained and answer material bubble
Foam sandwich cylinder band neck rigid flange.
Multiple material covering and multiple material muscle are made using RTM vacuum assisted resin perfusion techniques in preparation method provided in this embodiment
Item infiltration resin is uniform, while the solidifying pressure of molded part is uniform, ensure that each component fits closely, therefore manufactured reinforcement is multiple
Face of the material foam core cylinder with neck rigid flange, core combination effect are good, no significant defect, and the preparation method is of low cost, behaviour
Make easy.
Above example is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within the scope of the present invention
Within.
Claims (9)
1. a kind of reinforcement answers material foam core cylinder band neck rigid flange, which is characterized in that the main body packet with neck rigid flange
Neck, support portion and flange portion are included, the neck is the foam core cylinder of hollow cylindrical structure, and the support portion is open circles
Platform shape structure, the flange portion are disc or cirque structure, and the one end of the neck connects smaller one end of support portion,
Larger one end connecting flange portion of the support portion；
The neck includes multiple material inside panel（1）With multiple material exterior skin（8）, the multiple material inside panel（1）With multiple material exterior skin（8）
Between be evenly distributed with vertical plane foam lath（2）With multiple material strip reinforcement（3）, the multiple material strip reinforcement（3）It is spacedly distributed
In vertical plane foam lath（2）Between, pass through multiple material strip reinforcement（3）The multiple material inside panel of connection（1）With multiple material exterior skin（8）；
The support portion includes multiple material inside panel（1）With multiple material exterior skin（8）, the multiple material inside panel（1）With multiple material exterior skin
（8）Between be evenly distributed with inclined-plane foam lath（4）With multiple material triangle reinforcement（5）, the multiple material triangle reinforcement（5）Divide at equal intervals
Cloth is in inclined-plane foam lath（4）Between, pass through multiple material triangle reinforcement（5）The multiple material inside panel of connection（1）With multiple material exterior skin（8）；
The flange portion is equipped with multiple material exterior skin successively from top to bottom（8）, steel plate（6）With multiple material inside panel（1）, the flange portion
It is equipped with mounting hole（7）.
2. reinforcement according to claim 1 answers material foam core cylinder band neck rigid flange, which is characterized in that in the multiple material
Covering（1）With multiple material exterior skin（8）For fiber cloth at.
3. reinforcement according to claim 2 answers material foam core cylinder band neck rigid flange, which is characterized in that according to described multiple
Material inside panel（1）With multiple material exterior skin（8）It is made of fiber-reinforced resin matrix compound material, the fiber-reinforced resin base is multiple
Reinforcing material in condensation material is one kind or more in glass fabric, carbon cloth, basalt fiber cloth and aryl fiber cloth
Kind, the resin in the fiber-reinforced resin matrix compound material is one kind in epoxy resin, phenolic resin, polyurethane resin.
4. reinforcement according to claim 1 answers material foam core cylinder band neck rigid flange, which is characterized in that the vertical plane bubble
Foam lath（2）Cross section be isosceles trapezoid, the vertical plane foam lath（2）For PVC foams, PMI foams, PU foams or PEI
It is one or more in foam.
5. reinforcement according to claim 1 answers material foam core cylinder band neck rigid flange, which is characterized in that the multiple material is long
Reinforcement（3）It is constituted for fiber-reinforced resin matrix compound material, the reinforcing material in the fiber-reinforced resin matrix compound material
To be one or more in glass fabric, carbon cloth, basalt fiber cloth and aryl fiber cloth, the fiber-reinforced resin
Resin in based composites is one kind in epoxy resin, phenolic resin and polyurethane resin.
6. reinforcement according to claim 1 answers material foam core cylinder band neck rigid flange, which is characterized in that the inclined-plane bubble
Foam lath（4）For triangular prism structure, the inclined-plane foam lath（4）For in PVC foams, PMI foams, PU foams or PEI foams
It is one or more.
7. reinforcement according to claim 1 answers material foam core cylinder band neck rigid flange, which is characterized in that the multiple material three
Angle reinforcement（5）For triangle three-dimensional-structure, the multiple material triangle reinforcement（5）It is constituted for fiber-reinforced resin base, the fiber reinforcement
Reinforcing material in resin base is one kind or more in glass fabric, carbon cloth, basalt fiber cloth and aryl fiber cloth
Kind, the resin in the fiber-reinforced resin matrix compound material is one kind in epoxy resin, phenolic resin, polyurethane resin.
8. reinforcement according to claim 1 answers material foam core cylinder band neck rigid flange, which is characterized in that the flange portion
Outer diameter be more than the outer diameter of the larger one end of support portion, the outer diameter of described larger one end of support portion is more than the outer diameter of neck.
9. a kind of reinforcement answers preparation method of the material foam core cylinder with neck rigid flange, which is characterized in that including following specific step
Suddenly：
（One）Prepare vertical plane foam lath（2）With inclined-plane foam lath（4）：According to scantling design requirement, in advance by foam
It is trapezoidal vertical plane foam lath and generally triangular prism shaped inclined-plane foam lath that tablet, which cuts into cross section,；
（Two）Multiple material reinforcement：It cuts and vertical plane foam lath（2）Side view and the identical fiber cloth of size, cut several
It is fiber cloth-filled to vertical plane foam lath（2）Between, it is used in combination filament to fix fiber cloth, it is spare；It cuts and is steeped with inclined-plane
Foam lath（4）Side view and the identical fiber cloth of size, by it is several cut it is fiber cloth-filled to inclined-plane foam lath（4）
Between, it is used in combination filament to fix fiber cloth, it is spare；
（Three）Prepare preform：In RTM mold after smearing release agent, the reinforcing material of inside panel is first wrapped up on mold,；
Then in foam core cylinder one end by the reinforcing material outward flanging of inside panel, embedding steel plate while flange；Vertical plane is steeped
Foam lath is along the circumferential direction closely arranged on inside panel reinforcing material, and filament banding fixed is used in combination, by inclined-plane cystosepiment
Item is along the circumferential direction closely arranged at vertical plane foam lath surrounding, and filament banding fixed is used in combination；The increasing of exterior skin is wrapped up again
Strong material, the reinforcing material outward flanging of exterior skin, is used to prepare flange portion, finally obtains preform；
（Four）It assembles vacuum and imports formation system：External mold is encapsulated on above-mentioned preform forms a sealing system；
（Five）Check air-tightness：Bleeding point is connect with vacuum system with excessive glue pipe, sealing system is vacuumized, checks mold envelope
Close the air-tightness of system；
（Six）Injecting glue and curing molding：With injected rubber hose by gum-injecting port and equipped with the container phase of resin system after confirmation air-tightness is good
Even, resin is pumped into mold close system under negative pressure, and resin by helix tube and flow-guiding screen homogeneous immersion fiber cloth and is being filled
Gap between foam and fiber cloth, curing molding；
（Seven）Post-processing：Mold is taken out, flash of polishing from the formed body after solidification, reinforcement can be obtained and answer material foam folder
Core cylinder band neck rigid flange.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110065287A (en) * | 2019-05-27 | 2019-07-30 | 重庆理工大学 | A kind of bubble core phase transformation sandwich structure composite material and preparation method thereof |
| CN110761174A (en) * | 2019-11-15 | 2020-02-07 | 中国人民解放军陆军工程大学 | Assembled reinforced composite material foam sandwich cylindrical lattice column and assembling process thereof |
| CN111196044A (en) * | 2018-11-16 | 2020-05-26 | 中航复合材料有限责任公司 | Compression molding method for carbon fiber composite material mechanical arm |
| CN118404763A (en) * | 2024-07-03 | 2024-07-30 | 洛阳船舶材料研究所(中国船舶集团有限公司第七二五研究所) | Vacuum auxiliary forming method for high-elevation annular plate grid |
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| CN106626536A (en) * | 2017-01-24 | 2017-05-10 | 中国人民解放军理工大学 | Reinforced composite material foam sandwich cylinder and preparation method thereof |
| CN206579209U (en) * | 2017-01-24 | 2017-10-24 | 中国人民解放军理工大学 | A kind of enhanced type composite material foam core cylinder |
| CN107795149A (en) * | 2017-11-06 | 2018-03-13 | 中国人民解放军陆军工程大学 | Lattice-reinforced composite material foam sandwich supporting column and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106626536A (en) * | 2017-01-24 | 2017-05-10 | 中国人民解放军理工大学 | Reinforced composite material foam sandwich cylinder and preparation method thereof |
| CN206579209U (en) * | 2017-01-24 | 2017-10-24 | 中国人民解放军理工大学 | A kind of enhanced type composite material foam core cylinder |
| CN107795149A (en) * | 2017-11-06 | 2018-03-13 | 中国人民解放军陆军工程大学 | Lattice-reinforced composite material foam sandwich supporting column and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111196044A (en) * | 2018-11-16 | 2020-05-26 | 中航复合材料有限责任公司 | Compression molding method for carbon fiber composite material mechanical arm |
| CN110065287A (en) * | 2019-05-27 | 2019-07-30 | 重庆理工大学 | A kind of bubble core phase transformation sandwich structure composite material and preparation method thereof |
| CN110761174A (en) * | 2019-11-15 | 2020-02-07 | 中国人民解放军陆军工程大学 | Assembled reinforced composite material foam sandwich cylindrical lattice column and assembling process thereof |
| CN118404763A (en) * | 2024-07-03 | 2024-07-30 | 洛阳船舶材料研究所(中国船舶集团有限公司第七二五研究所) | Vacuum auxiliary forming method for high-elevation annular plate grid |
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