CN103286991A - 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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- CN103286991A CN103286991A CN2013102020753A CN201310202075A CN103286991A CN 103286991 A CN103286991 A CN 103286991A CN 2013102020753 A CN2013102020753 A CN 2013102020753A CN 201310202075 A CN201310202075 A CN 201310202075A CN 103286991 A CN103286991 A CN 103286991A
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- wooden core
- sandwich plate
- pultrusion
- core
- composite sandwich
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- 239000002131 composite material Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000002023 wood Substances 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 36
- 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
- 238000012545 processing Methods 0.000 claims description 11
- 210000003371 toe Anatomy 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 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
- 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
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 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
- 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
- 239000007943 implant Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
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- 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, relate in particular to a kind of composite sandwich plate with material shell, wooden core and composite floor that adopts the pultrude process manufacturing, specifically a kind of composite sandwich plate that utilizes the continued access realization serialization production of wooden core.
Background technology
Composite material sandwich structure is 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 fields such as building, traffic, naval vessel, space flight and aviation.Characteristics such as because timber has light weight and tough, thermal conductivity factor is little, and it is convenient to draw materials are applied in the sandwich widely so it is used as core.
In the production technology of sandwich plate, pultrude process is as the technology of a kind of production efficiency height, constant product quality, and the continued access of its core is the problem that people pay close attention to always, and is also like this for the continued access of wooden core.Often the product that comes out of pultrusion is chosen in discontinuous place and cuts in the engineering practical application, thereby has limited the size of sandwich plate; Perhaps by implant additional " I ", grooved angle steel or other rigid members in the junction, the location of rigid member when entering mould becomes difficult when actual continued access; Simultaneously connector is connected with the core of both sides and also is difficult to assurance with the interface problem of surface layer in co-curing.
Therefore, by pultrude process production, the novel core continued access that is 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 the bonding pad size, take full advantage of wooden core and self agree with the in addition constraint of connection assist, be a kind ofly be convenient to promote, composite sandwich plate that novel process easy and simple to handle, that stock utilization is high is produced.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and be convenient to promote, easy and simple to handle, can effectively utilize the intensity of core own, the wooden core joinery and its construction that in the pultrusion process, utilizes that cost is low to carry out the composite sandwich plate of continued access.
Another object of the present invention is to provide a kind of production technology of wooden core composite sandwich plate of pultrusion.
The technical solution used in the present invention is: a kind of wooden core composite sandwich plate of pultrusion, comprise material shell, wooden core and composite floor, and described wooden core and composite floor are arranged in the material shell;
Described wooden core is the wooden core of segmentation continued access formula, and the joinery and its construction form is adopted in continued access place of wooden core, and the joinery and its construction form refers to the concaveconvex structure that the timber termination employing of continued access place both sides cooperatively interacts, and comprises convex joint and female fitting.
As preferably, continued access place of described wooden core also is 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 also is provided with connection glue.
As preferably, the fiber that described material shell and composite floor adopt is at least a in carbon fiber, glass fibre, basalt fibre, aramid fiber, the assorted fibre; Fiber is a kind of in unidirectional fibre bundle or two-way fiber cloth or the multidirectional fiber cloth; The resin that adopts is at least a in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or the thermoplastic resin material.
As preferably, described wooden core is a kind of in Balsa wood, paulownia wood, China fir, poplar, beech, willow, the wood-based plate.
As preferably, described joinery and its construction comprises the right angle staged, the oblique angle staged, and a kind of in combined type and the buckle-groove type, wherein combined type is the combining form at right angle ladder and oblique angle.
As preferably, the right angle staged is a ladder in the described joinery and its construction, a kind of in two ladders or a plurality of ladder, and the oblique angle staged is a toe, and is a kind of in two toes or a plurality of toe, buckle-groove type is divided into two kinds of right angle catching groove and oblique angle catching grooves.
As preferably, it is splicing adhesive that continued access place of described wooden core connects glue, white glue with vinyl, a kind of in the yellow glue.
As preferably, described connection assist is a kind of in prefabricated metalwork, composite short column, PE rod, PP rod and the fibre bundle.
A kind of production technology of wooden core composite sandwich plate of above-mentioned pultrusion, be with fiber, resin and wooden core be raw material by the sheet material with material shell, wooden core and composite floor of the continuous global formation of pultrude process, may further comprise the steps:
1) carry out the processing of joinery and its construction for wooden core in core continued access place, joinery and its construction is made of convex joint and female fitting, and coarse processing need be carried out in its core upper surface and side simultaneously, is connected with the interface of surface layer to strengthen it;
2) fiber is entered the steeping vat of potting resin with wooden core, enter the mould that is heating and curing by the mould location, by the pulling equipment pultrusion, cut into required size by cutting equipment at last.
Beneficial effect:
1, the present invention uses the production that pultrude process carries out sandwich plate, the steady quality of product, production efficiency height.
2, the wooden core composite sandwich plate of a kind of pultrusion of the present invention, the joinery and its construction continued access that it adopts core takes full advantage of wooden core and self agrees with the continued access problem that has solved core, does 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 solidify to form an integral body jointly, and the anti-bending bearing capacity of its junction is improved.The while connection assist passes core and links to each other with surface layer, and the boundary strength of continued access place strengthens, and the junction is difficult for taking place interface peel.
4, the wooden core composite sandwich plate of a kind of pultrusion of the present invention, when adopting glued connection assist, glued speed is fast, and handling can not influence Production Line speed, practicality easy and simple to handle.
5, joinery and its construction designability of the present invention is strong, applied widely.
Description of drawings
Fig. 1 is that the wooden core filled composite material plate pultrusion production process of pultrusion of the present invention adopts the 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.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
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 constitute.The concrete production line of its pultrude process is: enter the steeping vat of potting resin 5 by fiber 4 with wooden core 2, enter the mould 6 that is heating and curing by the mould location, by pulling equipment 7 pultrusions, cut into required size by cutting equipment 8 at last.Need carry out the processing of joinery and its construction in core continued access place for wooden core 2, joinery and its construction is made of convex joint 9 and female fitting 10.Coarse processing need be carried out in its core upper surface and side simultaneously, is connected with the interface of surface layer to strengthen it.Described connection assist is a kind of in prefabricated metalwork, composite short column, PE rod, PP rod and the fibre bundle.The shape of composite short column 15 can be in cylinder, the circular cone a kind of.The effect of contraction of connection assist mainly refers in convex joint 9 and female fitting 10 zones perforate 11 is arranged, when convex joint 9 and female fitting 10 link together, and the hole slot of hole 11 for connecting.By sewing device 12, fibre bundle 13 is passed hole 11, expose on the husky two sides of fiber, and the length that fiber passes core is about 50mm.Should guarantee as far as possible that fibre bundle 13 ends evenly scatter, well-bonded when the curing to guarantee fibre bundle 13 terminations and fiber 4; Perhaps connect glue 14 by being coated with one deck at place, the tenon fourth of the twelve Earthly Branches, this moment, wooden core 2 can be made the teeth groove shape in the junction, and connection glue 14 is in before entering mould and solidifies or half curdled appearance.Connection glue is splicing adhesive, white glue with vinyl, a kind of in the yellow glue.
Shown in Fig. 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 interact, comprises convex joint 9 and female fitting 10, and section form comprises the right angle staged, oblique angle staged, a kind of in combined type and the buckle-groove type.The right angle staged is a ladder, a kind of in two ladders or a plurality of ladder.Oblique angle type is a toe, and is a kind of in two toes or a plurality of toe.Combined type is the combining form of right angle ladder and oblique angle ladder.Buckle-groove type is divided into two kinds of right angle catching groove and oblique angle catching grooves.
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 with the paulownia wood core, enter the mould that is heating and curing by the mould location, by the pulling equipment pultrusion, cut into required size by cutting equipment at last.Need carry out the processing of joinery and its construction in core continued access place for core.Joinery and its construction adopts the angular teeth grooved, is made of convex joint and female fitting, adopts white glue with vinyl to carry out the solid wood splicing.Coarse processing need be carried out in its core upper surface and side simultaneously, is connected with the interface of surface layer to strengthen it, adopts here and opens some shallow slots.
A kind of wooden core composite sandwich plate of pultrusion, its pultrusion production procedure is that fiber enters the steeping vat that is filled with epoxy resin with Balsa wood, enter the mould that is heating and curing by the mould location, by the pulling equipment pultrusion, cut into required size by cutting equipment at last.Need carry out the processing of joinery and its construction in core continued access place for core.Coarse processing need be carried out in its surface simultaneously, is connected with the interface of surface layer to strengthen it, adopts here and opens some shallow slots.Joinery and its construction adopts the combined type form, is made of convex joint and female fitting, opens row's cylindrical hole in the junction, and connection assist is the composite short column.
Should be pointed out that for those skilled in the art under the prerequisite that does not break away from the principle 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.In the present embodiment not clear and definite each part all available prior art realized.
Claims (10)
1. the wooden core composite sandwich plate of a pultrusion, it is characterized in that: comprise material shell, wooden core and composite floor, described wooden core and composite floor are arranged in the material shell;
Described wooden core is the wooden core of segmentation continued access formula, and the joinery and its construction form is adopted in continued access place of wooden core, and the joinery and its construction form refers to the concaveconvex structure that the timber termination employing of continued access place both sides cooperatively interacts, and comprises convex joint and female fitting.
2. the wooden core composite sandwich plate of a kind of pultrusion according to claim 1, it is characterized in that: continued access place of described wooden core also is provided with connection assist, and connection assist is arranged in the perforate of wooden core continued access place.
3. the wooden core composite sandwich plate of a kind of pultrusion according to claim 1, it is characterized in that: continued access place of described wooden core also is provided with connection glue.
4. the wooden core composite sandwich plate of a kind of pultrusion according to claim 1 is characterized in that: the fiber that described material shell and composite floor adopt is at least a in carbon fiber, glass fibre, basalt fibre, aramid fiber, the assorted fibre; Fiber is a kind of in unidirectional fibre bundle or two-way fiber cloth or the multidirectional fiber cloth; The resin that adopts is at least a in unsaturated polyester (UP), adjacent benzene resin, vinylite, epoxy resin, inorganic resin or the thermoplastic resin material.
5. the wooden core composite sandwich plate of a kind of pultrusion according to claim 1 is characterized in that: described wooden core is a kind of in Balsa wood, paulownia wood, China fir, poplar, beech, willow, the wood-based plate.
6. the wooden core composite sandwich plate of a kind of pultrusion according to claim 1, it is characterized in that: described joinery and its construction comprises the right angle staged, the oblique angle staged, a kind of in combined type and the buckle-groove type, wherein combined type is the combining form at right angle ladder and oblique angle.
7. the wooden core composite sandwich plate of a kind of pultrusion according to claim 6, it is characterized in that: the right angle staged is a ladder in the described joinery and its construction, a kind of in two ladders or a plurality of ladder, the oblique angle staged is a toe, a kind of in two toes or a plurality of toe, buckle-groove type is divided into two kinds of right angle catching groove and oblique angle catching grooves.
8. the wooden core composite sandwich plate of a kind of pultrusion according to claim 3 is characterized in that: it is splicing adhesive that continued access place of described wooden core connects glue, white glue with vinyl, a kind of in the yellow glue.
9. the wooden core composite sandwich plate of a kind of pultrusion according to claim 2 is characterized in that: described connection assist is a kind of in prefabricated metalwork, composite short column, PE rod, PP rod and the fibre bundle.
10. the production technology of the wooden core composite sandwich plate of the described pultrusion of claim 1, it is characterized in that: be with fiber, resin and wooden core be raw material by the sheet material with material shell, wooden core and composite floor of the continuous global formation of pultrude process, may further comprise the steps:
1) carry out the processing of joinery and its construction for wooden core in core continued access place, joinery and its construction is made of convex joint and female fitting, and coarse processing need be carried out in its core upper surface and side simultaneously, is connected with the interface of surface layer to strengthen it;
2) fiber is entered the steeping vat of potting resin with wooden core, enter the mould that is heating and curing by the mould location, by the pulling equipment pultrusion, cut into required size by cutting equipment at last.
Priority Applications (1)
| 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 |
|---|---|---|---|
| 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 true CN103286991A (en) | 2013-09-11 |
| CN103286991B CN103286991B (en) | 2015-11-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571749A (en) * | 2022-01-24 | 2022-06-03 | 国电联合动力技术有限公司 | Three-dimensional reinforced prefabricated part 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571749A (en) * | 2022-01-24 | 2022-06-03 | 国电联合动力技术有限公司 | Three-dimensional reinforced prefabricated part of wind power blade and preparation method thereof |
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| CN103286991B (en) | 2015-11-11 |
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