CN206579209U - A kind of enhanced type composite material foam core cylinder - Google Patents
A kind of enhanced type composite material foam core cylinder Download PDFInfo
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- CN206579209U CN206579209U CN201720100972.7U CN201720100972U CN206579209U CN 206579209 U CN206579209 U CN 206579209U CN 201720100972 U CN201720100972 U CN 201720100972U CN 206579209 U CN206579209 U CN 206579209U
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- composite
- foam core
- core cylinder
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Abstract
The utility model discloses a kind of enhanced type composite material foam core cylinder, including composite exterior skin, composite inside panel, and the cylindrical shape sandwich layer being arranged between, some grooves are equably carved with the inside and outside both side surface of sandwich layer, and composite rib is installed in groove, axial direction of the groove with composite rib along sandwich layer is set；The utility model overcomes the problem of composite foam core cylinder face core unsticking is with panel local buckling, one kind is provided on the premise of dead load is not obviously improved, the enhanced type composite material foam core cylinder of the load-carrying efficiency of Composite Sandwich cylinder is significantly lifted.
Description
Technical field
The utility model belongs to fiber-reinforced resin matrix compound material technical field, is related to a kind of fiber-reinforced resin base and answers
Cylinder/column structure part in condensation material sandwich structure by laminboard layer of foam, particularly a kind of enhanced type composite material foam folder
Core cylinder.
Background technology
Supporting member of being met an urgent need in engineering field is typically made using metal material, its from great, artificial carrying and operation not
It is convenient.The fiber-reinforced resin matrix compound material feature such as have light weight, intensity big, corrosion-resistant, covering, Ran Hou are used as by it
Constituted Composite Sandwich structure is separated with the sandwich layer that density is low, thickness is big in the middle of two coverings has big only of bending rigidity
Special advantage, and have energy-absorbing concurrently, the functional characteristics such as heat-insulated, it is widely used in numerous areas.
Compared with many Composite Sandwich structures, it is excellent that foam sandwich construction has preparation technology simple, with low cost etc.
Gesture, is adapted to promote the use of in field of civil engineering.Composite foam core cylinder can prepare support column and in civil engineering
Emergency management and rescue field is used.Under xial feed effect, because the rigidity of foamed material is relatively low, the support to composite material skin
Ability is weaker, and local buckling easily occurs for composite material skin, and the face core bond strength of foam sandwich construction is general weaker,
Easily there is face core unsticking.Both defects cause composite foam core cylinder load-carrying efficiency relatively low, it is impossible to meet big carrying
It is required that.And the preparation technology of composite foam core cylinder based on hand paste technique, can only make small size component, and property at present
Can unstable, complex operation.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcoming of prior art enhanced compound there is provided one kind
Material foams sandwich cylinder and preparation method thereof, the utility model overcomes composite foam core cylinder face core unsticking and panel office
The problem of portion's flexing, lifts Composite Sandwich cylinder there is provided one kind on the premise of dead load is not obviously improved, significantly
The enhanced type composite material foam core cylinder of load-carrying efficiency, while providing a kind of simple to operate, with low cost, performance stable increasing
The preparation method of strong type composite foam core cylinder.
In order to solve the above technical problems, the utility model provides a kind of enhanced type composite material foam core cylinder, including
Composite exterior skin, composite inside panel, and the cylindrical shape sandwich layer being arranged between, the inside and outside both sides of sandwich layer
Some grooves are evenly distributed with surface, and composite rib is installed in groove, groove and composite rib are along sandwich layer
Axial direction set.
The technical scheme that the utility model is further limited is：
Foregoing sandwich layer is made up of foamed material, and sandwich layer is spliced by least three pieces foam arc plate rings.
Foregoing composite exterior skin and composite inside panel are constituted by fiber-reinforced resin matrix compound material, fiber
Reinforced resin based composites include the first reinforcing material and resin.First reinforcing material includes glass fibre twin shaft cloth, glass
One or more in fiber multiaxis cloth, carbon fiber twin shaft cloth, carbon fiber multiaxis cloth, basalt fiber cloth and aryl fiber cloth.
Foregoing composite rib is constituted for unidirectional fibre reinforced resin based composites, and unidirectional fibre reinforced resin base is answered
Condensation material includes the second reinforcing material and resin.Second reinforcing material includes one-way glass fiber cloth, glass fiber, Unidirectional
In fiber cloth, carbon fiber wire, unidirectional basalt fiber cloth, basalt fibre silk, unidirectional aryl fiber cloth and aramid fiber silk
It is one or more.
Aforementioned resin includes the one or more in epoxy resin, vinylite, phenolic resin and polyurethane resin.
Foregoing foams arc plate is PVC foams, PMI foams, PU foams or PEI foams.
Foregoing composite exterior skin is identical with the thickness of condensation material inside panel, and the circumferential width of composite rib is smaller
Width, its radial width in groove is identical with the depth of groove.
The inside radius of enhanced type composite material foam core cylinder is 100-500mm；Enhanced type composite material foam core cylinder
Height be 1000-4000mm；Composite inside panel is identical with the thickness of composite exterior skin, and thickness is 10-20mm；Bubble
The thickness of foam arc plate is 10-60mm；The width of groove is 4-20mm, and depth is 2-10mm；The circumference of composite rib is wide
Degree 1mm smaller than groove, radial width is identical with depth of groove.
Composite inside panel, composite exterior skin, foam arc plate, the size of rib and material in the application
Selected according to actual requirement with being designed.
Further,
The utility model additionally provides a kind of preparation method of enhanced type composite material foam core cylinder, including following specific
Step：
(i) foam arc plate is prepared：Cutting processing is carried out on the surface of foam arc plate medial and lateral in advance, it is multiple for placing
Condensation material rib；
(ii) reinforcement：Unidirectional fiber cloth is directly arranged in the groove on foam arc plate medial and lateral surface, or in foam circle
The cured fiber-reinforced resin matrix compound material rib of arrangement in the groove on arc piece medial and lateral surface；
(iii) preform is prepared：Smearing release agent, Ran Hou first on enhanced type composite material foam core cylinder mould tool
Cylindrical shape sandwich layer, the reinforcing material of exterior skin after the reinforcing material of inside panel, reinforcement are wrapped up on mould successively, obtains preforming
Body；
(iv) VARI formation systems are assembled：On the preform that (iii) step obtains, release cloth, flow-guiding screen are wound successively, and
Resin guide pipe, exhaust tube are arranged, is then encapsulated above-mentioned preform, release cloth and flow-guiding screen with vacuum bag, and arrange tree
Fat mozzle, exhaust tube parcel covering, form sealed environment；
(v) injecting glue and co-curing：Vacuumize, check that air-tightness irrigates deployed resin, curing molding after intact.
(vi) post-process：Mould is taken out from the formed body after solidification using incremental launching method, the vacuum on removing formed body
Bag, mozzle, flow-guiding screen and release cloth, you can obtain enhanced type composite material foam core cylinder.
The beneficial effects of the utility model are：
The utility model introduces composite rib between the inside and outside covering of composite and foam arc plate surface,
The composite rib, through resin-bonded solidification, forms organic whole, the composite wood with the inside and outside covering of composite, PVC foams
Expect rib can as the inside and outside covering of composite reinforcement, can effectively prevent the inside and outside covering of composite from occurring local
Flexing, more effectively brings the intensity of composite material skin into play.
Also, groove, and width of the circumferential width than composite rib of groove have been scribed on foam arc plate surface
The passage that resin flows during vacant gap can be molded as VARTM in big 1mm, groove, makes resin more uniformly infiltrate increasing
Strong material, it is ensured that combined between face, core it is intact, and then improve face, the intensity that core is combined；Meanwhile, the composite in groove
In rib insertion foam arc plate, formed mechanical snap effect makes covering be connected even closer with foam arc plate；Therefore
Introduce after composite rib, enhanced type composite material foam core cylinder very high face, core bond strength can be assigned.In addition, multiple
Condensation material rib its own the characteristics of possess high intensity ratio, high rigidity ratio, arranged direction is consistent with Impact direction, therefore composite wood
Material rib itself can effectively share external load, play the integrated carrying ability effect for lifting enhanced foam core cylinder.
Composite material skin is made and multiple using vacuum assisted resin perfusion technique in the preparation method that the utility model is provided
Condensation material rib infiltration resin is uniform, while the solidifying pressure of molding part is uniform, it is ensured that each component is brought into close contact, therefore is made
The face of enhanced type composite material foam core cylinder, core combination effect it is good, no significant defect, and the preparation method it is with low cost,
It is easy to operate.
The enhanced type composite material foam core cylinder of the utility model design is introduced between composite material skin and sandwich layer
Composite rib, can effectively overcome the problem of composite material face local buckling is with face core unsticking, can be more preferable
The advantage of composite material high strength degree has been given play to, the effect of lifting load-carrying efficiency has been reached, so as to meet the requirement carried greatly, expands
It uses scope.Preparation method simultaneously in the utility model is easy to operate, with low cost, and the end properties of preparation are stable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Wherein, 1- composites exterior skin, 2- composite inside panels, 3- composite ribs, 4- sandwich layers, 5- grooves.
Embodiment
Embodiment 1
The present embodiment provides a kind of enhanced type composite material foam core cylinder, and structure is as shown in figure 1, outside including composite
In covering 1, composite inside panel 2, and the cylindrical shape sandwich layer 4 being arranged between, the inside and outside both side surface of sandwich layer 4
Some grooves 5 are evenly distributed with, and composite rib 3 is installed in groove 5, groove 5 and composite rib 3 are along sandwich layer 4
Axial direction set.
Foregoing sandwich layer 4 is made up of foamed material, and sandwich layer 4 is spliced by four central angles for 90 ° of foam arc plate ring
Form.Foregoing composite exterior skin 1 and composite inside panel 2 are constituted by fiber-reinforced resin matrix compound material, fiber
Reinforced resin based composites include the first reinforcing material and resin.First reinforcing material includes glass fibre twin shaft cloth, glass
One or more in fiber multiaxis cloth, carbon fiber twin shaft cloth, carbon fiber multiaxis cloth, basalt fiber cloth and aryl fiber cloth.
Foregoing composite rib 3 is constituted for unidirectional fibre reinforced resin based composites, unidirectional fibre reinforced resin base
Composite includes the second reinforcing material and resin.Second reinforcing material includes one-way glass fiber cloth, glass fiber, unidirectional
In carbon cloth, carbon fiber wire, unidirectional basalt fiber cloth, basalt fibre silk, unidirectional aryl fiber cloth and aramid fiber silk
One or more.
Aforementioned resin includes the one or more in epoxy resin, phenolic resin and polyurethane resin.Foregoing foams material
Including PVC foams, PMI foams, PU foams or PEI foams.The thickness of foregoing composite exterior skin 1 and composite inside panel 2
Degree is identical, and it is identical with the depth of groove 5 that the circumferential width of composite rib 3 is slightly less than the width of groove 5, its radial width.
The inside radius of enhanced type composite material foam core cylinder is 100-500mm；The height of enhanced type composite material foam core cylinder is
1000-4000mm；Composite inside panel is identical with the thickness of composite exterior skin, and thickness is 1-5mm；Foam arc plate
Thickness is 10-60mm；The width of groove is 4-20mm, and depth is 2-10mm；The circumferential width of composite rib is smaller than groove
1mm, radial width is identical with depth of groove.
The present embodiment introduces composite rib between the inside and outside covering of composite and foam arc plate surface, should
Composite rib, through resin-bonded solidification, forms organic whole, the composite with the inside and outside covering of composite, PVC foams
Rib can as the inside and outside covering of composite reinforcement, can effectively prevent the inside and outside covering of composite from occurring local bend
Song, more effectively brings the intensity of composite material skin into play.
Also, groove, and width of the circumferential width than composite rib of groove have been scribed on foam arc plate surface
The passage that resin flows during vacant gap can be molded as VARI in big 1mm, groove, makes resin more uniformly infiltrate enhancing
Material, it is ensured that between face, core combine it is intact, and then improve face, core combine intensity；Meanwhile, the composite material bar in groove
In bar insertion foam arc plate, formed mechanical snap effect makes covering be connected even closer with foam arc plate；Therefore draw
Enter after composite rib, enhanced type composite material foam core cylinder very high face, core bond strength can be assigned.In addition, compound
Material rib its own the characteristics of possess high intensity ratio, high rigidity ratio, arranged direction is consistent with Impact direction, therefore composite
Rib itself can effectively share external load, play the integrated carrying ability effect for lifting enhanced foam core cylinder.
Embodiment 2
A kind of preparation method of enhanced type composite material foam core cylinder is present embodiments provided, by composite Inner Mongol
Composite rib institute between skin, composite exterior skin, the foamed core being clipped between two pieces of coverings, sandwich layer and two coverings
Composition；The height of enhanced type composite material foam core cylinder is 1000mm, and internal diameter is 200mm；Composite inside panel, composite wood
Expect that exterior skin is made up of glass fibre twin shaft cloth reinforced resin based composites, thickness is all 3mm；Sandwich layer is by four pieces of centers of circle
Angle is spliced for 90 ° of foam arc plate ring, and foam arc plate sheet material is that density is 100kg/m3PVC foams, it is thick
Spend for 40mm；The width of groove is 7mm, and depth is 4mm, two 12 ° of groove intervals；Composite rib is by glass fibre unidirectional cloth
Reinforced resin based composites are constituted, and width is 6mm, and thickness is 4mm.
Comprise the following specific steps that：
(i) PVC foam arc plates are prepared:Notched PVC foams arc plate is provided by Lars Co., Ltd of Beijing section,
Density is 100kg/m3, thickness is 40mm；The width of groove is 7mm, and depth is 5mm, two 12 ° of groove intervals, by foam circular arc
Piece is dried 4 hours in baking oven under 50 DEG C of ventilated environments, standby.
(ii) reinforcement：Glass fibre unidirectional cloth is cut into a plurality of long 1000mm, wide 6mm narrow cloth, glass using rag cutter
Glass one-way fiber fabric thickness in monolayer is 0.4mm, and the narrow cloth of well cutting is laid in groove in layer, each groove laying
10 layers；Or：A length of 1000mm, a width of 1000mm are made by mould pressing process by one-way glass fiber cloth and resin, thickness is
4mm flat board, by shown flat board cut growth 1000mm, a width of 6mm, thickness is 4mm rib, then places the rib
In groove.
(iii) preform is prepared：It is smearing release agent on 200mm metal hollow mould cylinder in external diameter, is wound on mould
5 slice width degree are 1000mm, and thickness is the 0.6mm two-way cloth of glass fibre, and good with filament colligation, is then buckled after reinforcement
4 pieces of PVC foams arc plates simultaneously bundle fixation with filament, 5 slice width degree are finally wound again for 1000mm, thickness is 0.6mm glass
The two-way cloth of glass fiber, and it is also good with filament colligation, obtain preform；
(iv) VARI formation systems are assembled：On preform, one layer of release cloth, flow-guiding screen are wound successively, and arrange resin
Mozzle, adhesive pouring nozzle, exhaust tube, are then wrapped up with vacuum bag and covered, form a sealed environment；
(v) injecting glue and co-curing：The air-tightness of VARI formation systems is checked, and is adjusted in time；Resin selects 770V type second
Ene based resins normal temperature resin, with curing agent and coagulant according to 100:1:1 weight is than deployed；By exhaust tube and vavuum pump phase
Even, adhesive pouring nozzle is connected with injected rubber hose and injected rubber hose is inserted into resin system, opens vavuum pump, and resin system leads under suction function
Cross each corner that injected rubber hose, mozzle, flow-guiding cloth are evenly distributed in preform, 45 minutes or so rear closing vavuum pumps,
Ambient temperature curing 7 hours.
(vi) post-process：Mould is taken out from the formed body after solidification using incremental launching method, the vacuum on removing formed body
Bag, mozzle, flow-guiding screen, release cloth, just can obtain enhanced type composite material foam core cylinder.
Composite material skin is made with being combined using vacuum assisted resin perfusion technique in the preparation method that the present embodiment is provided
Material rib infiltration resin is uniform, while the solidifying pressure of molding part is uniform, it is ensured that each component is brought into close contact, therefore be made
The face of enhanced type composite material foam core cylinder, core combination effect are good, no significant defect, and the preparation method is with low cost, behaviour
Make easy.
Above example is only explanation technological thought of the present utility model, it is impossible to limit protection model of the present utility model with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical scheme each falls within this reality
Within the scope of novel protected.
Claims (6)
1. a kind of enhanced type composite material foam core cylinder, it is characterised in that including composite exterior skin (1), composite
It is uniform in inside panel (2), and the cylindrical shape sandwich layer (4) being arranged between, the inside and outside both side surface of the sandwich layer (4)
It is distributed with some grooves (5), and groove (5) and composite rib (3) is installed, the groove (5) and composite rib
(3) set along the axial direction of sandwich layer.
2. enhanced type composite material foam core cylinder according to claim 1, it is characterised in that the sandwich layer (4) is bubble
Foam material is made, and cylindrical shape sandwich layer (4) is spliced by least three pieces foam arc plate rings.
3. enhanced type composite material foam core cylinder according to claim 1, it is characterised in that covered outside the composite
Skin (1) and composite inside panel (2) are constituted by fiber-reinforced resin matrix compound material.
4. enhanced type composite material foam core cylinder according to claim 1, it is characterised in that the composite rib
(3) constituted for unidirectional fibre reinforced resin based composites.
5. enhanced type composite material foam core according to claim 2 cylinder, it is characterised in that the foam arc plate is
PVC foams, PMI foams, PU foams or PEI foams.
6. enhanced type composite material foam core cylinder according to claim 1, it is characterised in that covered outside the composite
Skin (1) is identical with the thickness of condensation material inside panel (2), and the circumferential width of the composite rib (3) is less than the width of groove (5)
Degree, its radial width are identical with the depth of groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100972.7U CN206579209U (en) | 2017-01-24 | 2017-01-24 | A kind of enhanced type composite material foam core cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100972.7U CN206579209U (en) | 2017-01-24 | 2017-01-24 | A kind of enhanced type composite material foam core cylinder |
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| CN206579209U true CN206579209U (en) | 2017-10-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108437489A (en) * | 2018-03-29 | 2018-08-24 | 中国人民解放军陆军工程大学 | A kind of reinforcement answers material foam core cylinder band neck rigid flange and preparation method thereof |
| CN108739700A (en) * | 2018-06-16 | 2018-11-06 | 玉曜瑜 | A kind of horizontal shaft type line cup |
-
2017
- 2017-01-24 CN CN201720100972.7U patent/CN206579209U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108437489A (en) * | 2018-03-29 | 2018-08-24 | 中国人民解放军陆军工程大学 | A kind of reinforcement answers material foam core cylinder band neck rigid flange and preparation method thereof |
| CN108739700A (en) * | 2018-06-16 | 2018-11-06 | 玉曜瑜 | A kind of horizontal shaft type line cup |
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