CN106013602A - Pultrusion wooden core material composite profile - Google Patents
Pultrusion wooden core material composite profile Download PDFInfo
- Publication number
- CN106013602A CN106013602A CN201610439795.5A CN201610439795A CN106013602A CN 106013602 A CN106013602 A CN 106013602A CN 201610439795 A CN201610439795 A CN 201610439795A CN 106013602 A CN106013602 A CN 106013602A
- Authority
- CN
- China
- Prior art keywords
- wooden core
- section bar
- pultrusion
- composite material
- core material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011162 core material Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 239000006260 foam Substances 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 238000010079 rubber tapping Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 23
- 239000003365 glass fiber Substances 0.000 claims description 12
- 239000002023 wood Substances 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920006387 Vinylite Polymers 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004382 potting Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 244000303040 Glycyrrhiza glabra Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a pultrusion wooden core material composite profile which can be used as a beam or a column. The profile can be rectangular, circular or hexagonal. The profile comprises a composite shell and a wooden core material. The composite shell is formed by curing fiber and resin. The wooden core material is arranged in the composite shell. The wooden core material has various forms, that is, a hole is formed in the center of the wooden core material; the wooden core material is divided into a plurality of small blocks, crossed-shaped gaps are reserved between every two adjacent small blocks, and the gaps are filled with cross-shaped soft foam; holes are formed in the periphery of the wooden core material and filled with soft foam; self-tapping screws are arranged in the wooden core material and punched in the top face of the composite profile in the length direction in two rows. By changing the forms of an inner wooden core, the cracks, caused by dry shrinkage and wet expansion of the wooden core, of the composite shell are reduced, and the batched application in the engineering field is achieved.
Description
Technical field
The present invention relates to the composite material section bar of a kind of new pultrusion, specifically internal wooden by changing
The form of core improves composite material section bar safety in structure uses, to realize the batch application of engineering field.
Background technology
Composite Sandwich structure, as the efficient structural material of one, is compared with the structure of other material, composite wood feed collet
Cored structure has higher specific stiffness and specific strength, it is easy to processes and retrofits, corrosion-resistant, and the most this structure is in multiple skill
Art field is obtained for substantial amounts of application.Tough owing to timber has a light weight, heat conductivity is little, the feature such as draw materials convenient,
So it is widely applied in sandwich as core.
Wood shrinkage and bulking: moist wood reduces the phenomenon of its size and is referred to as drying shrinkage because being dried；Bole is because absorption moisture
The phenomenon increasing its size and volume is referred to as bulking.Drying shrinkage and bulking phenomenon are mainly saturated less than fiber at moisture content
In this case the generation of point, when moisture content is more than fibre saturated point, its size, volume are to change
's.Wood shrinkage and timber bulking are to occur in two exactly opposite directions, and both can cause timber size and body
Long-pending change.The timber of chainless stress for small size, its drying shrinkage and bulking are reversible in theory；For greatly
Size solid wood test specimen, due to drying shrinkage stress and the existence of moisture absorption hysteresis, drying shrinkage and bulking are not fully reversible.Dry
Material use is had a great impact by contracting with bulking.Drying shrinkage mainly causes woodwork dimensional contraction to the impact of wood utilization
And the gap produced, buckling deformation and cracking；Bulking not only increases the size of woodwork and floor protuberance occurs, and makes composite wood
Material cracking, affects its performance.Therefore composite material section bar is in work progress, due to drying shrinkage and the bulking meeting of internal reel
Exterior composite material shell is caused to ftracture, so that bearing capacity lost by whole component.
Therefore the present invention reduces, by the form changing internal reel, the impact that component performance is produced by wood shrinkage with bulking,
Preferably play the advantage of Composite Sandwich structure.
Summary of the invention
It is an object of the invention to overcome wooden core drying shrinkage bulking to cause change in volume to cause material shell to ftracture
Shortcoming, it is provided that the wooden core composite material section bar of a kind of pultrusion, uses the form control reel of multiple reel to do
The impact on material property of the contracting bulking.
The technical solution used in the present invention is: the wooden core composite material section bar of a kind of pultrusion, this section bar is as beam
Or as post, section bar includes material shell and wooden core, fiber and resin that described material shell uses are solid
Change forms, and wooden core is arranged on inside material shell, and wooden core includes following several form:
The center of described wooden core offers hole；
Described wooden core is divided into multiple fritter, leaves cruciform voids in the middle of each fritter, and this space is filled with cross
Flexible foam；
Offering hole on the limit of described wooden core surrounding, this holes filling has flexible foam；
Being provided with self-tapping screw in described wooden core, self-tapping screw divides two rows to beat at composite material section bar end face along its length
Enter.
As preferably, the fiber that described material shell uses is carbon fiber, glass fibre, basalt fibre, aramid fiber
At least one in fiber, assorted fibre；Fiber is the one in unidirectional fibre or two-way fiber or multidirectional fiber cloth；
The resin used is unsaturated polyester (UP), adjacent benzene polyester, vinylite, epoxy resin, inorganic resin, thermoplastic resin
At least one in material.
As preferably, described profile shapes can be rectangle and circle.
As preferably, described flexible foam is polyurethane, polystyrene, polrvinyl chloride, polyethylene or phenolic foam.
As preferably, it is rectangle, circle, triangle that the cross sectional shape of hole is offered at the center of described wooden core, or its
Remaining polygon-shaped.
As preferably, a diameter of 5mm or 6mm of described self-tapping screw.
As preferably, described section bar be shaped as rectangle, circle or hexagon.
The construction method of the wooden core composite material section bar of a kind of above-mentioned pultrusion, comprises the following steps:
It is processed into described various forms of reels with timber, core upper surface and side is carried out coarse process simultaneously；
Fiber is entered together with core potting resin steeping vat, is positioned into, by mould, the mould that is heating and curing, by leading
Draw equipment pultrusion, cut into required size finally by cutting equipment.
Beneficial effect: one molded through pultrusion of composite material section bar of the present invention, service life is long, easy care, internal reel
Drying shrinkage and bulking are less on the impact of component composition material envelope, practicality easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is that the wooden core of the first form of the present invention is divided between polylith, every piece and being connected by flexible foam, bubble
Foam is cross, composite material section bar elevational schematic view；
Fig. 2 is that the second form wooden core surrounding of the present invention punches and the composite material section bar facade signal of filled and process
Figure；
Fig. 3 is the composite material section bar elevational schematic view that the center of the wooden core of the third form of the present invention punches；
Fig. 4 is the schematic cross-section of Fig. 1；
Fig. 5 is the schematic cross-section of Fig. 2；
Fig. 6 is the schematic cross-section of Fig. 3；
Fig. 7 is that the 4th kind of wooden core of form of the present invention is provided with self-tapping screw schematic diagram.
The 5th kind of form composite material section bar schematic diagram generally circular in shape of Fig. 8-Figure 10 position present invention.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1 and Figure 4, the present invention is a kind of pultrusion reel composite material section bar, section bar as post, including
Material shell 2, wooden core 1 and flexible foam 3, with common post specification, a length of 3000mm, width is 90mm,
Thickness is 120mm.Internal wooden core 1 dimensions length is 3000mm, and width is 78mm, and height is 108mm；Center
For the cross flexible foam 3 of width 6mm, the internal wooden core 1 of composition；Outside is 6mm thickness one-way glass fiber,
Core is entered together with glass fibre the steeping vat of potting resin, is heating and curing by mould location, then is set by traction
Standby pultrusion, i.e. can get the wooden core composite material section bar of a kind of pultrusion.
Embodiment 2
As shown in Figure 2 and Figure 5, the present invention is a kind of pultrusion reel composite material section bar, section bar as post, including
Material shell 2, wooden core 1 and flexible foam 3, with common post specification, a length of 3000mm, width is 90mm,
Thickness is 120mm.Internal wooden core 1 dimensions length is 3000mm, and width is 78mm, and height is 108mm；At wood
Matter core 1 surrounding punches, a length of 3000mm in hole, and width is 20mm, and height is 15mm；And fill at hole
Flexible foam 3, a length of 3000mm of flexible foam 3, width is 20mm, and height is 15mm；The internal wooden core of composition
Material 1；Outside is 6mm thickness one-way glass fiber, and core enters together with glass fibre the steeping vat of potting resin, logical
Cross mould location to be heating and curing, then by pulling equipment pultrusion, the wooden core that i.e. can get a kind of pultrusion is multiple
Condensation material section bar.
Embodiment 3
As shown in Figure 3 and Figure 6, the present invention is a kind of pultrusion reel composite material section bar, section bar as post, including
Material shell 2 and wooden core 1, with common post specification, a length of 3000mm, width is 90mm, and thickness is
120mm.Internal wooden core 1 dimensions length is 3000mm, and width is 78mm, and height is 108mm；Wooden core 1
Center punches, and the size in hole is length 3000mm, and width is 30mm, and height is 40mm, and outside is the thick unidirectional glass of 6mm
Glass fiber, enters the steeping vat of potting resin together with glass fibre by core, is heating and curing by mould location, then leads to
Cross pulling equipment pultrusion, i.e. can get the wooden core composite material section bar of a kind of pultrusion.
Embodiment 4
As it is shown in fig. 7, the present invention is a kind of pultrusion reel composite material section bar, section bar is as post, including composite wood
Material shell 2, wooden core 1 and self-tapping screw 4, with common post specification, a length of 3000mm, width is 90mm, thick
Degree is 120mm.Internal wooden core 1 dimensions length is 3000mm, and width is 78mm, and height is 108mm；Along length
Two row's self-tapping screws 4, a diameter of 5mm of self-tapping screw 4 are played at composite material section bar end face in direction, and outside is 6mm thickness list
To glass fibre, core is entered together with glass fibre the steeping vat of potting resin, is heating and curing by mould location,
Again by pulling equipment pultrusion, i.e. can get the wooden core composite material section bar of a kind of pultrusion.
Embodiment 5
As seen in figs. 8-10, the present invention is the reel composite material section bar of a kind of pultrusion, section bar as post, including
Material shell 2, wooden core 1, with common post specification, a length of 3000mm, a diameter of 100mm.Inner timber
Matter core 1 dimensions length is 3000mm, a diameter of 90mm；Wooden core 1 is respectively adopted: center offer hole 9 (as
Fig. 8)；Wooden core 1 is divided into multiple fritter, leaves cruciform voids in the middle of each fritter, and this space is filled with cross
Flexible foam 3 (such as Fig. 9)；Offering hole on the limit of wooden core 1 surrounding, this holes filling has flexible foam 3
(such as Figure 10).Outside is 5mm thickness one-way glass fiber, and core enters together with glass fibre the impregnation of potting resin
Groove, is heating and curing by mould location, then by pulling equipment pultrusion, i.e. can get the wooden of a kind of pultrusion
Core composite material section bar.
Above in association with accompanying drawing, embodiments of the present invention are described in detail, but the present invention is not limited to described enforcement
Mode.For those of ordinary skill in the art, in the range of the principle and technological thought of the present invention, real to these
The mode of executing carries out multiple change, revises, replaces and deformation still falls within protection scope of the present invention.
Claims (6)
1. the wooden core composite material section bar of a pultrusion, it is characterised in that: this section bar as beam or as post,
Section bar includes material shell and wooden core, and fiber and resin solidification that described material shell uses form, wood
Matter core is arranged on inside material shell, and wooden core includes following several form:
The center of described wooden core offers hole；
Described wooden core is divided into multiple fritter, leaves cruciform voids in the middle of each fritter, and this space is filled with cross
Flexible foam；
Offering hole on the limit of described wooden core surrounding, this holes filling has flexible foam；
Being provided with self-tapping screw in described wooden core, self-tapping screw divides two rows to beat at composite material section bar end face along its length
Enter.
The wooden core composite material section bar of a kind of pultrusion the most according to claim 1, it is characterised in that:
The fiber that described material shell uses is carbon fiber, glass fibre, basalt fibre, aramid fiber, assorted fibre
In at least one；Fiber is the one in unidirectional fibre or two-way fiber or multidirectional fiber cloth；The resin used is not
In saturated polyester, adjacent benzene polyester, vinylite, epoxy resin, inorganic resin, thermoplastic resin material at least one
Kind.
The wooden core composite material section bar of a kind of pultrusion the most according to claim 1, it is characterised in that:
Described flexible foam is polyurethane, polystyrene, polrvinyl chloride, polyethylene or phenolic foam.
The wooden core composite material section bar of a kind of pultrusion the most according to claim 1, it is characterised in that:
There is chamfering at described wooden core edge, and it is rectangle, circle, triangle that the cross sectional shape of hole is offered at its center, or remaining
Polygon-shaped.
The wooden core composite material section bar of a kind of pultrusion the most according to claim 1, it is characterised in that:
A diameter of 5mm or 6mm of described self-tapping screw.
The wooden core composite material section bar of a kind of pultrusion the most according to claim 1, it is characterised in that:
Described section bar be shaped as rectangle, circle or hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439795.5A CN106013602A (en) | 2016-06-17 | 2016-06-17 | Pultrusion wooden core material composite profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439795.5A CN106013602A (en) | 2016-06-17 | 2016-06-17 | Pultrusion wooden core material composite profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106013602A true CN106013602A (en) | 2016-10-12 |
Family
ID=57088932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610439795.5A Pending CN106013602A (en) | 2016-06-17 | 2016-06-17 | Pultrusion wooden core material composite profile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106013602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | One kind sets two-way shear connector FRP box section concrete combination beams |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497839A (en) * | 1990-08-16 | 1992-03-30 | Tonen Corp | Fiber-reinforced composite resin member |
| WO2005037540A1 (en) * | 2003-10-20 | 2005-04-28 | Andrew Martin Duncan | Composite coated wooden post |
| CN101851880A (en) * | 2010-01-28 | 2010-10-06 | 北京盘天新技术有限公司 | Wooden inner core composite sleeper |
| CN201679402U (en) * | 2009-12-10 | 2010-12-22 | 重庆崴腾家具有限公司 | Wood door |
| CN103866653A (en) * | 2014-02-28 | 2014-06-18 | 滕州市华海新型保温材料有限公司 | Novel sandwich structure composite sleeper and continuous pultrusion molding process thereof |
| CN205677148U (en) * | 2016-06-17 | 2016-11-09 | 南京工业大学 | A kind of wooden core composite material section bar of pultrusion |
-
2016
- 2016-06-17 CN CN201610439795.5A patent/CN106013602A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497839A (en) * | 1990-08-16 | 1992-03-30 | Tonen Corp | Fiber-reinforced composite resin member |
| WO2005037540A1 (en) * | 2003-10-20 | 2005-04-28 | Andrew Martin Duncan | Composite coated wooden post |
| CN201679402U (en) * | 2009-12-10 | 2010-12-22 | 重庆崴腾家具有限公司 | Wood door |
| CN101851880A (en) * | 2010-01-28 | 2010-10-06 | 北京盘天新技术有限公司 | Wooden inner core composite sleeper |
| CN103866653A (en) * | 2014-02-28 | 2014-06-18 | 滕州市华海新型保温材料有限公司 | Novel sandwich structure composite sleeper and continuous pultrusion molding process thereof |
| CN205677148U (en) * | 2016-06-17 | 2016-11-09 | 南京工业大学 | A kind of wooden core composite material section bar of pultrusion |
Non-Patent Citations (1)
| Title |
|---|
| 齐玉军等: "新型FRP拉挤夹芯型材及其结构应用初探", 《玻璃钢/复合材料》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | One kind sets two-way shear connector FRP box section concrete combination beams |
| CN106836639B (en) * | 2017-04-11 | 2022-09-23 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161012 |