CN103286991B - Pultruded wood core composite sandwich plate and production process thereof - Google Patents
Pultruded wood core composite sandwich plate and production process thereof Download PDFInfo
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- CN103286991B CN103286991B CN201310202075.3A CN201310202075A CN103286991B CN 103286991 B CN103286991 B CN 103286991B CN 201310202075 A CN201310202075 A CN 201310202075A CN 103286991 B CN103286991 B CN 103286991B
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- wooden core
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- joinery
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- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000002023 wood Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims description 35
- 238000010276 construction Methods 0.000 claims description 24
- 239000003292 glue Substances 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 229920006305 unsaturated polyester Polymers 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 240000007182 Ochroma pyramidale Species 0.000 claims description 4
- 244000055346 Paulownia Species 0.000 claims description 4
- 229920006387 Vinylite Polymers 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 244000050510 Cunninghamia lanceolata Species 0.000 claims description 3
- 240000000731 Fagus sylvatica Species 0.000 claims description 3
- 235000010099 Fagus sylvatica Nutrition 0.000 claims description 3
- 241000219000 Populus Species 0.000 claims description 3
- 241000124033 Salix Species 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 238000004382 potting Methods 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 239000011162 core material Substances 0.000 abstract 8
- 210000003371 toe Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Landscapes
- Floor Finish (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a pultrusion wood core composite material sandwich plate which is produced by a novel process and is convenient to popularize, simple and practical to operate and high in material utilization rate, and the pultrusion wood core composite material sandwich plate comprises a composite material shell, a wood core and a composite material rib plate, wherein the wood core and the composite material rib plate are arranged in the composite material shell; the wood core material is a sectional splicing type wood core material, the splicing part of the wood core material adopts a tenon-and-mortise structure form, the tenon-and-mortise structure form means that wood ends on two sides of the splicing part adopt concave-convex structures matched with each other, and the tenon-and-mortise structure form comprises a convex joint and a concave joint. The invention also discloses a production process of the pultruded wood core composite material sandwich panel.
Description
Technical field
The present invention relates to a kind of composite sandwich plate and production technology thereof, particularly relate to a kind of composite sandwich plate with material shell, wooden core and composite floor adopting pultrude process manufacture, specifically a kind of composite sandwich plate utilizing the continued access of wooden core to realize continuous prodution.
Background technology
Composite material sandwich structure as a kind of new structure, because of have quality light, than strong high, be easy to processing and remodeling, corrosion-resistant, designability is strong etc., and advantage has been widely used in the fields such as building, traffic, naval vessel, space flight and aviation.Because timber has light weight and tough, thermal conductivity factor is little, and the feature such as to draw materials convenient, so it is applied in sandwich widely by as core.
In the production technology of sandwich plate, pultrude process is high as a kind of production efficiency, the technique of constant product quality, and the continued access of its core is the problem that people pay close attention to always, and the continued access for wooden core is also like this.In practical implementation, often pultrusion product is out selected to cut at discontinuous place, thus limits the size of sandwich plate; Or by implanting additional " I ", grooved angle steel or other rigid members in junction, when actual continued access, the location of rigid member when entering mould becomes difficulty; In co-curing, connector is connected with the core of both sides and is also difficult to ensure with the interface problem of surface layer simultaneously.
Therefore, produced by pultrude process, the novel core continued access be formed by connecting by joinery and its construction and the connection assist of wooden core self, by to the control of both sides core in bonding pad size, making full use of the constraint that wooden core self agrees with connection assist in addition, is the composite sandwich plate that a kind of novel process being convenient to promote, easy and simple to handle, stock utilization is high is produced.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and be convenient to promote, the wooden core joinery and its construction that utilizes in pultrusion process that is easy and simple to handle, that can effectively utilize the intensity of core own, cost low carries out the composite sandwich plate of continued access.
Another object of the present invention is the production technology of the wooden core composite sandwich plate providing a kind of pultrusion.
The technical solution used in the present invention is: a kind of wooden core composite sandwich plate of pultrusion, comprises material shell, wooden core and composite floor, and described wooden core and composite floor are arranged in material shell;
Described wooden core is the wooden core of segmentation continued access formula, and continued access place of wooden core adopts joinery and its construction form, and joinery and its construction form refers to that the timber termination of continued access place both sides adopts the concaveconvex structure cooperatively interacted, and comprises convex joint and female fitting.
As preferably, continued access place of described wooden core is also provided with connection assist, and connection assist is arranged in the perforate of wooden core continued access place.
As preferably, continued access place of described wooden core is also provided with connection glue.
As preferably, the fiber that described material shell and composite floor adopt is at least one in carbon fiber, glass fibre, basalt fibre, aramid fiber, assorted fibre; Fiber is the one in unidirectional fiber bundle or two-way fiber cloth or multidirectional fiber cloth; The resin adopted is at least one in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or thermoplastic resin material.
As preferably, described wooden core is the one in Balsa wood, paulownia wood, China fir, poplar, beech, willow, wood-based plate.
As preferably, described joinery and its construction comprises right angle staged, oblique angle staged, and the one in combined type and buckle-groove type, wherein combined type is the combining form at right angle ladder and oblique angle.
As preferably, in described joinery and its construction, right angle staged is a ladder, the one in two ladders or multiple ladder, and oblique angle staged is a toe, and a kind of in two toes or multiple toe, buckle-groove type is divided into right angle catching groove and oblique angle catching groove two kinds.
As preferably, it is splicing adhesive that continued access place of described wooden core connects glue, white glue with vinyl, the one in yellow glue.
As preferably, described connection assist is the one in the excellent and fibre bundle of prefabricated metalwork, composite short column, PE rod, PP.
A kind of production technology of wooden core composite sandwich plate of above-mentioned pultrusion, be with fiber, resin and wooden core for raw material are by the sheet material with material shell, wooden core and composite floor of the continuous global formation of pultrude process, comprise the following steps:
1) wooden core is carried out to the process of joinery and its construction in core continued access place, joinery and its construction is made up of convex joint and female fitting, and its core upper surface and side need to carry out coarse process simultaneously, are connected with the interface of surface layer to strengthen it;
2) fiber is entered together with wooden core the steeping vat of potting resin, enter by mould location the mould that is heating and curing, by pulling equipment pultrusion, cut into required size finally by cutting equipment.
Beneficial effect:
1, the present invention's application pultrude process carries out the production of sandwich plate, and the steady quality of product, production efficiency is high.
2, the wooden core composite sandwich plate of a kind of pultrusion of the present invention, it adopts the joinery and its construction continued access of core, makes full use of wooden core and self agrees with the continued access problem solving core, do not add new structure for sandwich plate.
3, the wooden core composite sandwich plate of a kind of pultrusion of the present invention, connection assist and surface layer co-curing formation entirety, the anti-bending bearing capacity of its junction is improved.Connection assist is connected with surface layer through core simultaneously, and the boundary strength of continued access place strengthens, and junction not easily interface peel occurs.
4, the wooden core composite sandwich plate of a kind of pultrusion of the present invention, when adopting cementing connection assist, cementing speed is fast, and process can not affect the speed of production of production line, practicality easy and simple to handle.
5, joinery and its construction designability of the present invention is strong, applied widely.
Accompanying drawing explanation
Fig. 1 is that the wooden core filled composite material plate pultrusion production process of pultrusion of the present invention adopts connection assist schematic diagram;
Fig. 2 is that the wooden core filled composite material plate pultrusion production process of pultrusion of the present invention adopts connection glue schematic diagram;
Fig. 3-Figure 10 is the joinery and its construction section form schematic diagram of core of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As illustrated in fig. 1 and 2: a kind of wooden core composite sandwich plate of pultrusion, by material shell 1, wooden core 2 and composite floor 3 are formed.The concrete production line of its pultrude process is: the steeping vat being entered potting resin 5 by fiber 4 together with wooden core 2, enters the mould 6 that is heating and curing, by pulling equipment 7 pultrusion, cut into required size finally by cutting equipment 8 by mould location.Need for wooden core 2 process carrying out joinery and its construction in core continued access place, joinery and its construction is made up of convex joint 9 and female fitting 10.Its core upper surface and side need to carry out coarse process simultaneously, are connected with the interface of surface layer to strengthen it.Described connection assist is the one in the excellent and fibre bundle of prefabricated metalwork, composite short column, PE rod, PP.The shape of composite short column 15 can be the one in cylinder, circular cone.The effect of contraction of connection assist mainly refers to there is perforate 11 in convex joint 9 and female fitting 10 region, and when convex joint 9 links together with female fitting 10, hole 11 is through hole slot.By sewing device 12, by fibre bundle 13 through hole 11, the husky head two sides of fiber is exposed, and the length that fiber passes core is about 50mm.Should ensure evenly to scatter in fibre bundle 13 end as far as possible, with ensure fibre bundle 13 termination and fiber 4 well-bonded when solidifying; Or connect glue 14 by being coated with one deck at Tenon place, now wooden core 2 can make teeth groove shape in junction, and connection glue 14 is in and solidifies or half curdled appearance before entering mould.Connection glue is splicing adhesive, white glue with vinyl, the one in yellow glue.
Wooden core 2 is the one in Balsa wood, paulownia wood, China fir, poplar, beech, willow, wood-based plate.Composite short column 15 is identical with material shell 1 and composite floor 3 material, form for fiber 4 or fibre bundle 13 and resin 5 solidify in the pultrusion thermal treatment zone, described fiber 4 is at least one in carbon fiber, glass fibre, basalt fibre, aramid fiber, assorted fibre; Described resin 5 is at least one in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or thermoplastic resin material.And described fiber 4 and fibre bundle 13 can be the one in unidirectional fiber bundle or this two-way fiber cloth or multidirectional fiber cloth.
As shown in figs. 3-10, the joinery and its construction form of core refers to that the timber termination of continued access place both sides adopts the concaveconvex structure cooperatively interacted, and comprise convex joint 9 and female fitting 10, section form comprises right angle staged, oblique angle staged, the one in combined type and buckle-groove type.Right angle staged is a ladder, the one in two ladders or multiple ladder.Oblique angle type is a toe, a kind of in two toes or multiple toe.Combined type is the combining form of right angle ladder and oblique angle ladder.Buckle-groove type is divided into right angle catching groove and oblique angle catching groove two kinds.
Embodiment 1
A kind of wooden core composite sandwich plate of pultrusion, its pultrusion production procedure is that glass fibre enters the steeping vat of filling vinylite together with paulownia wood core, the mould that is heating and curing is entered by mould location, by pulling equipment pultrusion, cut into required size finally by cutting equipment.The process carrying out joinery and its construction in core continued access place is needed for core.Joinery and its construction adopts angular teeth grooved, is made up of convex joint and female fitting, adopts white glue with vinyl to carry out woods.Its core upper surface and side need to carry out coarse process simultaneously, are connected with the interface of surface layer to strengthen it, adopt here and open some shallow slots.
Embodiment 2
A kind of wooden core composite sandwich plate of pultrusion, its pultrusion production procedure is that fiber enters the steeping vat being filled with epoxy resin together with Balsa wood, enter by mould location the mould that is heating and curing, by pulling equipment pultrusion, cut into required size finally by cutting equipment.The process carrying out joinery and its construction in core continued access place is needed for core.Its surface needs to carry out coarse process simultaneously, is connected with the interface of surface layer to strengthen it, adopts here and opens some shallow slots.Joinery and its construction adopts combined type form, and be made up of convex joint and female fitting, open row's cylindrical hole in junction, connection assist is composite short column.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (1)
1. a production technology for the wooden core composite sandwich plate of pultrusion, is characterized in that:
The wooden core composite sandwich plate of described pultrusion comprises material shell, wooden core and composite
Floor, described wooden core and composite floor are arranged in material shell;
Described wooden core is the wooden core of segmentation continued access formula, and continued access place of wooden core adopts joinery and its construction form, and joinery and its construction form refers to that the timber termination of continued access place both sides adopts the concaveconvex structure cooperatively interacted, and comprises convex joint and female fitting;
Continued access place of described wooden core is also provided with connection assist, and connection assist is arranged in the perforate of wooden core continued access place;
Continued access place of described wooden core is also provided with connection glue;
The fiber that described material shell and composite floor adopt is at least one in carbon fiber, glass fibre, basalt fibre, aramid fiber, assorted fibre; Fiber is the one in unidirectional fiber bundle or multidirectional fiber cloth; The resin adopted is at least one in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or thermoplastic resin material;
Described wooden core is the one in Balsa wood, paulownia wood, China fir, poplar, beech, willow, wood-based plate;
Described joinery and its construction comprises right angle staged, oblique angle staged, the one in combined type and buckle-groove type, and wherein combined type is the combining form at right angle ladder and oblique angle;
In described joinery and its construction, right angle staged is the one in a ladder or multiple ladder, and oblique angle staged is a kind of in a toe or multiple toe, and buckle-groove type is divided into right angle catching groove and oblique angle catching groove two kinds;
It is splicing adhesive that continued access place of described wooden core connects glue, white glue with vinyl, the one in yellow glue;
Described connection assist is the one in the excellent and fibre bundle of prefabricated metalwork, composite short column, PE rod, PP;
A kind of production technology of wooden core composite sandwich plate of above-mentioned pultrusion, be with fiber, resin and wooden core for raw material are by the sheet material with material shell, wooden core and composite floor of the continuous global formation of pultrude process, comprise the following steps:
1) wooden core is carried out to the process of joinery and its construction in core continued access place, joinery and its construction is made up of convex joint and female fitting, and its core upper surface and side need to carry out coarse process simultaneously, are connected with the interface of surface layer to strengthen it;
2) fiber is entered together with wooden core the steeping vat of potting resin, enter by mould location the mould that is heating and curing, by pulling equipment pultrusion, cut into required size finally by cutting equipment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202075.3A CN103286991B (en) | 2013-05-24 | 2013-05-24 | Pultruded wood core composite sandwich plate and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310202075.3A CN103286991B (en) | 2013-05-24 | 2013-05-24 | Pultruded wood core composite sandwich plate and production process thereof |
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| CN103286991A CN103286991A (en) | 2013-09-11 |
| CN103286991B true CN103286991B (en) | 2015-11-11 |
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| CN114571749B (en) * | 2022-01-24 | 2023-04-25 | 国电联合动力技术有限公司 | Three-dimensional reinforcement prefabricated member of wind power blade and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753394A2 (en) * | 1995-07-14 | 1997-01-15 | PILOSIO SpA | Method for the continuous production of sandwich boards for scaffolding and formworks and sandwich boards for scaffolding and formworks thus produced |
| CN101591972A (en) * | 2009-06-29 | 2009-12-02 | 南京工业大学 | Pultrusion composite material building template |
| CN203305581U (en) * | 2013-05-24 | 2013-11-27 | 南京工业大学 | Pultruded wood core composite sandwich plate |
-
2013
- 2013-05-24 CN CN201310202075.3A patent/CN103286991B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753394A2 (en) * | 1995-07-14 | 1997-01-15 | PILOSIO SpA | Method for the continuous production of sandwich boards for scaffolding and formworks and sandwich boards for scaffolding and formworks thus produced |
| CN101591972A (en) * | 2009-06-29 | 2009-12-02 | 南京工业大学 | Pultrusion composite material building template |
| CN203305581U (en) * | 2013-05-24 | 2013-11-27 | 南京工业大学 | Pultruded wood core composite sandwich plate |
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| CN103286991A (en) | 2013-09-11 |
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