CN112848527A - Composite board and manufacturing method thereof - Google Patents
Composite board and manufacturing method thereof Download PDFInfo
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- CN112848527A CN112848527A CN202011616706.2A CN202011616706A CN112848527A CN 112848527 A CN112848527 A CN 112848527A CN 202011616706 A CN202011616706 A CN 202011616706A CN 112848527 A CN112848527 A CN 112848527A
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- honeycomb structure
- honeycomb
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- skin
- frame
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- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 62
- 239000006260 foam Substances 0.000 claims abstract description 22
- 239000011162 core material Substances 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims description 58
- 239000003365 glass fiber Substances 0.000 claims description 46
- 239000011152 fibreglass Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 26
- 239000010959 steel Substances 0.000 description 26
- 239000010410 layer Substances 0.000 description 15
- 238000001723 curing Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920001587 Wood-plastic composite Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 239000011155 wood-plastic composite Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a composite board and a manufacturing method thereof, comprising the following steps: processing the honeycomb structure filled with the foam core materials, removing partial foam core materials in the upper end part and the lower end part of the honeycomb, forming upper grooves and lower grooves for filling glue in the upper end part and the lower end part of each honeycomb, filling the glue in the upper grooves and the lower grooves of the honeycomb structure to the upper surface and the lower surface of the honeycomb, splicing a plurality of honeycomb structures by using the glue, covering an upper skin on the upper surface of the spliced honeycomb structure, covering a lower skin on the lower surface of the spliced honeycomb structure, and bonding the glue on the upper surface and the lower surface of the honeycomb structure by passing through the upper grooves and the lower grooves of the upper skin and the lower skin to solidify the glue. The upper groove and the lower groove in the honeycomb structure enable glue to be cured in the honeycomb to form the convex structure, the bonding strength between the skin and the honeycomb structure is remarkably improved, and the obtained composite board can bear larger acting force in the longitudinal direction and the transverse direction and can be suitable for various occasions.
Description
Technical Field
The invention relates to a composite board and a manufacturing method thereof.
Background
The composite board is generally formed by overlapping and bonding a plurality of layers of different functional material layers from top to bottom, and the main types of the composite board comprise a glass fiber reinforced plastic composite board, a wood-plastic composite board, a metal composite board and the like. Due to the structural form of the upper layer and the lower layer, the composite board can bear various pressures to the board under the condition that the mechanical property of the material meets the requirement. However, the bonding force between the layers of the composite board is generally provided only by glue, the layers are relatively flat and lack resistance, and the layers are easy to peel off when the surface of the composite board is subjected to transverse force. For example, in the container floor in the logistics field, the surface layer and the inner layer of the floor are peeled off over time due to the horizontal friction force generated when the load slides in addition to the pressure generated by the self weight of the load during the transportation.
On the other hand, in some large-area composite plates manufactured by splicing a plurality of plates, because the relative bonding area of the edges of the plates for splicing is small, the bonding stability is poor, the splicing position becomes a weak stress link of the composite plate, and the composite plate is easy to break.
Disclosure of Invention
The invention mainly aims to improve the bonding strength between layers of a composite board.
In order to achieve the above object, a first aspect of the present invention provides a method for manufacturing a composite board, including:
processing the honeycomb structure filled with the foam core material, removing partial foam core material in the upper end part and the lower end part of the honeycomb to form upper grooves and lower grooves for filling glue in the upper end part and the lower end part of each honeycomb,
filling glue into the upper and lower grooves of the honeycomb structure to the upper and lower surfaces of the honeycomb,
a plurality of honeycomb structures are spliced by glue,
covering an upper skin on the upper surface of the spliced honeycomb structure, covering a lower skin on the lower surface of the spliced honeycomb structure, bonding the upper skin and the lower skin on the upper surface and the lower surface of the honeycomb structure through the glue in the upper groove and the lower groove,
and curing the glue.
In some embodiments, when a plurality of honeycomb structures are spliced by glue, one or more layers of glass fiber cloth soaked by the glue are adhered between the honeycomb structures which are spliced with each other, the upper part of the glass fiber cloth is folded backwards to be adhered to the upper surface of the honeycomb structure on one side of the splice, and the lower part of the glass fiber cloth is folded backwards to be adhered to the lower surface of the honeycomb structure on one side of the splice.
In some embodiments, the removal is by heat shrinking or cutting the foam core.
In some embodiments, the height of the upper and lower grooves is 1-3 mm.
In some embodiments, the splicing is performed in a frame, the honeycomb structure is spliced to cover a space enclosed by the frame, and the frame is bonded to the spliced honeycomb structure.
In some embodiments, the lower surface of the honeycomb and the lower surface of the frame are co-bonded to the lower skin, and the upper surface of the honeycomb and the upper surface of the light frame are co-bonded to the upper skin.
In some embodiments, when bonding the frame to the spliced honeycomb structure, one or more layers of glue-impregnated fiberglass cloth are adhered between the honeycomb structure and the frame, the upper portion of the fiberglass cloth is folded back to be bonded to the upper surface of the honeycomb structure or the frame, and the lower portion of the fiberglass cloth is folded back to be bonded to the lower surface of the frame or the honeycomb structure.
In some embodiments, the upper and lower skins are selected from one of composite skins or metal skins.
A second aspect of the present invention provides a composite board comprising:
the spliced honeycomb structure is filled with foam core materials, the upper end part and the lower end part of each foam core material are shallower than the upper surface and the lower surface of the honeycomb structure so as to form an upper groove and a lower groove for filling glue on the upper end part and the lower end part of each honeycomb,
the upper and lower grooves of the honeycomb structure are filled with glue reaching the upper and lower surfaces of the honeycomb,
the upper surface of the spliced honeycomb structure is covered with an upper skin, the lower surface of the spliced honeycomb structure is covered with a lower skin, and the upper skin and the lower skin are connected into the upper groove and the lower groove through the glue which is bonded on the upper surface and the lower surface of the honeycomb structure.
In some embodiments, one or more layers of glass fiber cloth soaked by glue are adhered between the spliced honeycomb structures, the upper parts of the glass fiber cloth are folded backwards to be adhered to the upper surfaces of the honeycomb structures on one side of the splice, and the lower parts of the glass fiber cloth are folded backwards to be adhered to the lower surfaces of the honeycomb structures on one side of the splice.
In some embodiments, the honeycomb structure further comprises a frame, and the spliced honeycomb structure covers the space enclosed by the frame.
In some embodiments, the lower surface of the honeycomb and the lower surface of the frame are co-bonded to the lower skin, and the upper surface of the honeycomb and the upper surface of the light frame are co-bonded to the upper skin.
In some embodiments, one or more layers of glue-impregnated fiberglass cloth are adhered between the honeycomb structure and the frame, with the upper portion of the fiberglass cloth folded back to adhere to the upper surface of the honeycomb structure or frame and the lower portion of the fiberglass cloth folded back to adhere to the lower surface of the frame or honeycomb structure.
Compared with the prior art, the honeycomb structure filled with foam can reduce the self weight on the premise of ensuring the strength, the honeycomb in the honeycomb structure can form a groove for filling glue in the manufacturing process of the plate, the protruding structure formed after the glue is cured in the honeycomb can be clamped in the honeycomb, the interlayer acting force of the composite plate is obviously improved, and the obtained composite plate can bear larger acting force in the longitudinal direction and the transverse direction and can be suitable for various occasions. In some embodiments, the manufacturing method provided by the invention can obviously increase the bonding area of each splicing position in the composite board, and obviously improve the strength of the composite board at the splicing position.
Drawings
Fig. 1 is a schematic structural diagram of one of the composite boards of the present invention.
Figure 2 is a schematic cross-sectional view of the bonding of the upper skin to the honeycomb structure.
Fig. 3 is a schematic view of an arrangement mode of the glass fiber cloth.
Fig. 4 is a schematic view of an arrangement mode of the glass fiber cloth.
In the figure: 1. the novel structural component comprises an upper covering, 2 steel frames, 3 honeycomb structures, 4 lower grooves, 5 glass fiber cloth, 6 lower covering, 7 foam core materials, 8 glue and 9 upper grooves.
Detailed Description
The manufacturing method of the composite board comprises the following main steps: processing the honeycomb structure 3 filled with the foam core material 7, removing partial foam core materials 3 in the upper end part and the lower end part of the honeycomb, forming upper grooves 9 and lower grooves 4 for filling glue in the upper end part and the lower end part of each honeycomb, filling glue 8 in the upper grooves 9 and the lower grooves 4 of the honeycomb structure to the upper surface and the lower surface of the honeycomb, splicing a plurality of honeycomb structures by using the glue, covering an upper skin 1 on the upper surface of the spliced honeycomb structure, covering a lower skin 6 on the lower surface of the spliced honeycomb structure 3, bonding the glue on the upper surface and the lower surface of the honeycomb structure by the glue in the upper grooves 9 and the lower grooves 4, curing the glue, and finally obtaining the composite board. The formed upper and lower grooves not only increase the bonding area, but also enable the filled glue to form a convex shape in the upper and lower grooves, so that the bonding strength between the skin and the honeycomb structure is increased, and meanwhile, the convex shape, the upper and lower grooves are matched to remarkably increase the capability of the composite board for bearing transverse acting force. The present invention is further illustrated by the following specific examples based on the above-described manufacturing steps.
The honeycomb (honeycomb) in the honeycomb structure 3 of this embodiment is a hollow columnar structure vertically arranged, the cross-sectional shape of the honeycomb is generally hexagonal, and the vertical honeycomb is topologically formed in the transverse direction to form a complete honeycomb structure. The cross-sectional shape of the honeycomb may also be various regular shapes, irregular shapes such as a square, an equilateral triangle, etc., which enable topological development in a plane, and the foam core material 7 is filled in each honeycomb. Such a honeycomb structure is commercially available, and the material of the honeycomb may be a metal material, a composite material, or the like, and in practical cases, the material of the honeycomb may be selected depending on the strength and weight required. The foam core material 7 is filled in each honeycomb of the honeycomb structure 3, the selected foam core material is polyurethane foam, polystyrene foam and the like, and the upper end and the lower end of the foam core material can be shallower than the upper surface and the lower surface of the honeycomb structure by performing thermal shrinkage or cutting on the foam core material at the two ends of the honeycomb, so that upper grooves 9 and lower grooves 4 for filling glue are formed. The depth of the upper groove and the lower groove is about 1-3 mm, such as 1.2mm, 1.5mm, 2mm, 2.5mm, 2.8mm and the like, and a higher groove height means more glue filling, a larger bonding area and bonding strength.
The upper and lower skins 9, 4 used in this embodiment are selected from one of composite material skins or metal skins.
The frame used in this embodiment is a steel frame 2, although other types of metal frames or composite frames may be used.
The glue used in this embodiment may be polyurethane glue or epoxy glue.
When a plurality of honeycomb structures 3 are spliced by glue, one or more layers of glass fiber cloth 5 soaked by the glue are adhered between the honeycomb structures 3 which are spliced with each other, the upper part of the glass fiber cloth is folded backwards to be adhered with the upper surface of the honeycomb structure at one side, and the lower part of the glass fiber cloth is folded backwards to be adhered with the honeycomb structure at the other side. In this embodiment, the upper part and the lower part of the glass fiber cloth are bonded to different honeycomb structures, as shown in fig. 1, the upper part of the glass fiber cloth 5 is bonded to the upper surface of the left honeycomb structure, and the lower part is bonded to the lower surface of the right honeycomb structure, so as to form a "Z" shaped structure, in other embodiments, the upper part and the lower part of the glass fiber cloth can be bonded to the upper surface and the lower surface of the same honeycomb structure, so as to form a "C" shaped structure as shown in fig. 3, in some embodiments, multiple layers of glass fiber cloth can be bonded, as shown in fig. 4, glass fiber cloth with opposite "C" shaped structures are bonded to each of the two spliced honeycomb structures, in other embodiments, glass fiber cloth with parallel "Z" shaped structures can be bonded to each of the two spliced honeycomb structures, and after being cured, the glass fiber cloth soaked by the glue can form a resin member with glass fiber cloth inside, glass fiber cloth can provide intensity and toughness for the resin spare, and the resin then can provide holistic rigidity, increases the intensity of honeycomb concatenation position, avoids forming the weak link of atress at the concatenation position.
The splicing is carried out in the steel frame 2 of figure 1, the honeycomb structure is carried out, the splicing is carried out to cover the space enclosed by the steel frame, and the steel frame is bonded with the spliced honeycomb structure. After glue is coated on the steel frame 2, the glass fiber cloth 5 dipped with the glue is adhered to the lower skin 6, the middle part of the glass fiber cloth 5 is adhered to the inner side surface of the steel frame 2, the upper end or the lower end of the glass fiber cloth 5 is outwards turned over and adhered to the upper surface or the lower surface of the steel frame 2, the lower end or the upper end of the glass fiber cloth 5 is inwards turned over and adhered to the lower surface or the upper surface of a honeycomb structure filled with foam which is then placed, as shown in figure 1, the upper part of the glass fiber cloth 5 on the left side of the steel frame 2 is outwards turned over and adhered to the upper surface of the steel frame 2, the lower part of the glass fiber cloth 5 is inwards turned over and adhered to the position between a honeycomb structure on the steel frame 2 and the lower skin below, the lower part of the glass fiber cloth on the right side of the steel frame 2 is outwards turned over and adhered to the position between the bottom of the steel frame 2 and the, bonded to the upper surface of the honeycomb structure. The glass fiber cloth 5 dipped with glue forms a Z-shaped structure after being cured, on one hand, the glass fiber cloth 5 effectively increases the bonding area of the steel frame 2 and the honeycomb structure, and on the other hand, the cured Z-shaped structure can improve the strength of the gap between the steel frame 2 and the honeycomb structure.
In the embodiment, the honeycomb structure is laid according to the following steps that glue is filled in upper and lower grooves 9 and 4 of the honeycomb structure 3, the honeycomb structure 3 is laid from the left side to the right side in the steel frame 2, the first row of honeycomb structures 3 is firstly placed, the left side edge of the honeycomb structure 3 is bonded with the glass fiber cloth 5 bonded on the steel frame 2, the lower surface of the honeycomb structure 3 is bonded with the lower skin 6 through the glue filled in the lower groove 4, after the first row of honeycomb structures 3 is laid, the glass fiber cloth 5 dipped with the glue is bonded at the right side edge of the first row of honeycomb structures 3, the upper part of the glass fiber cloth 5 is turned leftwards and is bonded with the upper surface of the first row of honeycomb structures 3, the lower part of the glass fiber cloth is turned rightwards and is bonded on the lower skin 6 so as to be bonded with the second row of honeycomb structures 3 laid later, then the second row of honeycomb structures 3 is continuously laid at the right side of the first row of, the left side edge of the second row of honeycomb structures 3 is bonded with the glass fiber cloth 5 dipped with glue, the lower parts of the second row of honeycomb structures 3 are bonded with the lower skin 6 through the glue filled in the lower grooves 4, the steps are repeated until the steel frame 2 is fully filled, and after the last row of honeycomb structures 3 are laid, the upper ends of the glass fiber cloth 5 bonded on the inner side surface of the left steel frame 2 are turned over leftwards and are attached to the upper surface of the last row of honeycomb structures 3. In addition to the above steps, all the honeycomb structures 3 may be put into the steel frame 2 after being spliced.
Then, an upper skin 1 is covered above the steel frame 2 and the honeycomb structure 3, and as shown in fig. 2, the upper skin 1 is bonded to the honeycomb structure 3 by glue filled in the upper groove 9. The edge of the upper skin 1 is directly or indirectly bonded to the upper surface of the steel frame 2, for example, in this embodiment, since the glass fiber cloth 5 is bonded to the left steel frame 2, the edge of the upper skin 1 is indirectly bonded to the steel frame 2 by being bonded to the glass fiber cloth 5, and since the glass fiber cloth 5 is not bonded to the right steel frame 2, the upper skin 1 is directly bonded to the steel frame 2 by glue, which may be selected according to specific situations.
And finally, integrally pressurizing the formed composite board, and waiting for curing of glue or thermal curing. After solidification, the glue between the upper skin 1 and the honeycomb structure forms a downward bulge in the upper groove 9, the glue between the lower skin 6 and the honeycomb structure forms an upward bulge in the lower groove 4, and when the upper skin 6 and the lower skin 6 are subjected to transverse acting force, the bonding force of the glue and the resistance of the honeycomb structure to the formed bulges can effectively prevent the upper skin 6 and the lower skin 6 from peeling off. And the glass fiber cloth 5 with each Z-shaped structure formed in the composite board can effectively increase the strength of the splicing part.
The bonding strength between each layer of the composite board manufactured by the method is high (more than or equal to 0.8MPa), the original stress weak link at the splicing part is effectively strengthened, and the self weight of the composite board can be reduced by the honeycomb structure under the condition of ensuring the self strength of the composite board.
The embodiments of the present invention are merely illustrative, and not restrictive, of the scope of the claims, and other substantially equivalent alternatives may occur to those skilled in the art and are within the scope of the present invention.
Claims (13)
1. A manufacturing method of a composite board is characterized by comprising the following steps:
processing the honeycomb structure filled with the foam core material, removing partial foam core material in the upper end part and the lower end part of the honeycomb to form upper grooves and lower grooves for filling glue in the upper end part and the lower end part of each honeycomb,
filling glue into the upper and lower grooves of the honeycomb structure to the upper and lower surfaces of the honeycomb,
a plurality of honeycomb structures are spliced by glue,
covering an upper skin on the upper surface of the spliced honeycomb structure, covering a lower skin on the lower surface of the spliced honeycomb structure, bonding the upper skin and the lower skin on the upper surface and the lower surface of the honeycomb structure through the glue in the upper groove and the lower groove,
and curing the glue.
2. The method of claim 1, wherein when the plurality of honeycomb structures are joined together by glue, one or more layers of glass fiber cloth impregnated with glue are adhered between the joined honeycomb structures, the upper portion of the glass fiber cloth is folded back to adhere to the upper surface of the joined honeycomb structure on one side, and the lower portion of the glass fiber cloth is folded back to adhere to the lower surface of the joined honeycomb structure on one side.
3. A method of making a composite sheet material as claimed in claim 1 wherein said removing is by heat shrinking or cutting the foam core.
4. The method of manufacturing a composite sheet according to claim 1, wherein the height of the upper and lower grooves is 1 to 3 mm.
5. The method of making a composite sheet material according to claim 1 wherein said splicing is performed in a frame, said honeycomb structure is spliced to cover the space enclosed by the frame, and the frame is bonded to the spliced honeycomb structure.
6. The method of making a composite panel according to claim 5, wherein the lower surface of said honeycomb structure and the lower surface of said frame are co-bonded to said lower skin, and the upper surface of said honeycomb structure and the upper surface of said light frame are co-bonded to said upper skin.
7. The method of claim 6, wherein one or more layers of glass fiber cloth soaked with glue are adhered between the honeycomb structure and the frame when the frame is adhered to the spliced honeycomb structure, the upper part of the glass fiber cloth is folded backwards and adhered to the upper surface of the honeycomb structure or the frame, and the lower part of the glass fiber cloth is folded backwards and adhered to the lower surface of the frame or the honeycomb structure.
8. The method of claim 1, wherein the upper and lower skins are selected from one of composite skins or metal skins.
9. A composite board characterized by comprising:
the spliced honeycomb structure is filled with foam core materials, the upper end part and the lower end part of each foam core material are shallower than the upper surface and the lower surface of the honeycomb structure so as to form an upper groove and a lower groove for filling glue on the upper end part and the lower end part of each honeycomb,
the upper and lower grooves of the honeycomb structure are filled with glue reaching the upper and lower surfaces of the honeycomb,
the upper surface of the spliced honeycomb structure is covered with an upper skin, the lower surface of the spliced honeycomb structure is covered with a lower skin, and the upper skin and the lower skin are connected into the upper groove and the lower groove through the glue which is bonded on the upper surface and the lower surface of the honeycomb structure.
10. The composite board of claim 9, wherein one or more layers of glue impregnated fiberglass cloth are adhered between the honeycomb structures, wherein the upper portion of the fiberglass cloth is folded back to adhere to the upper surface of the honeycomb structure on one side of the splice, and the lower portion of the fiberglass cloth is folded back to adhere to the lower surface of the honeycomb structure on one side of the splice.
11. The composite panel of claim 9, further comprising a frame, wherein the spliced honeycomb structure is housed within a space enclosed by the frame.
12. The composite panel of claim 11 wherein the lower surface of said honeycomb structure and the lower surface of said frame are co-bonded to said lower skin and the upper surface of said honeycomb structure and the upper surface of said light frame are co-bonded to said upper skin.
13. A composite sheet material according to claim 11 wherein one or more layers of glue impregnated fiberglass cloth are adhered between the honeycomb structure and the frame, the upper portion of the fiberglass cloth being folded back to adhere to the upper surface of the honeycomb structure or frame, and the lower portion of the fiberglass cloth being folded back to adhere to the lower surface of the frame or honeycomb structure.
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| CN202011616706.2A CN112848527A (en) | 2020-12-30 | 2020-12-30 | Composite board and manufacturing method thereof |
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| CN202011616706.2A CN112848527A (en) | 2020-12-30 | 2020-12-30 | Composite board and manufacturing method thereof |
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| CN112848527A true CN112848527A (en) | 2021-05-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415055A (en) * | 2021-08-04 | 2021-09-21 | 深圳市捷创新材料股份有限公司 | 5G-used plate with high wave-transmitting and high strength and preparation method thereof |
| CN119189434A (en) * | 2024-11-28 | 2024-12-27 | 嘉兴雅港复合材料股份有限公司 | A kind of foamed honeycomb core composite board and preparation method thereof |
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| CN210390356U (en) * | 2019-07-11 | 2020-04-24 | 山东中航泰达复合材料有限公司 | Composite material foam sandwich structure capable of ensuring product flatness |
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| CN119189434A (en) * | 2024-11-28 | 2024-12-27 | 嘉兴雅港复合材料股份有限公司 | A kind of foamed honeycomb core composite board and preparation method thereof |
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Application publication date: 20210528 |