CN210500697U - Veneer shaving board - Google Patents
Veneer shaving board Download PDFInfo
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- CN210500697U CN210500697U CN201920499303.0U CN201920499303U CN210500697U CN 210500697 U CN210500697 U CN 210500697U CN 201920499303 U CN201920499303 U CN 201920499303U CN 210500697 U CN210500697 U CN 210500697U
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Abstract
The utility model discloses a veneer shaving board, which comprises a cement shaving board, a first adhesive layer and a veneer layer from the center of a board to the surface of the board in sequence, wherein the first adhesive layer is directly adhered to the cement shaving board and the veneer layer; the cement particle board consists of a core layer and surface layers positioned on two sides of the core layer, wherein the length of wood shavings in the core layer is more than 60mm, and the length of the wood shavings in the surface layers is less than 60 mm. In this application, use the less fine wood shaving of length in the top layer of cement shaving board, this roughness that can reduce the cement shaving board to make the cement shaving board of this application have good direct veneer ability, flooding peel strength and surface bonding strength, can directly compound with the finish coat through first gluing agent layer, and need not additionally to set up balanced layer between cement shaving board and finish coat.
Description
Technical Field
The utility model belongs to the technical field of the shaving board, concretely relates to veneer shaving board.
Background
With the rapid development of society, people have higher and higher requirements on environmental protection consciousness and physical and psychological health, and have stronger and stronger call for green environment-friendly artificial boards. The traditional shaving board is prepared by taking wood as a raw material and urea-formaldehyde resin or phenolic resin as an adhesive through glue application, stirring, paving and hot pressing, the glue consumption is large, and the problems of over-standard formaldehyde content, unstable physical and chemical properties, poor waterproof and moisture-proof performances and the like of the product are solved.
At present, aldehyde-free adhesives are developed on the market to replace adhesives such as urea-formaldehyde resin or phenolic resin and the like which release free formaldehyde, and the existing aldehyde-free adhesives mainly comprise soybean glue and MDI (diphenylmethane diisocyanate), but the soybean glue sizing process is complex and the storage period is short; MDI is costly and the cost of stripping and cleaning is high. Therefore, other aldehyde-free adhesives are also being developed gradually.
The magnesium cement is used as a green environment-friendly air-hardening cementing material, the sizing process is simple, the cost is low, the magnesium cement has excellent affinity with wood plant fibers, the manufactured cement shaving board can fundamentally solve the problem of formaldehyde release in the artificial board industry, and meanwhile, the magnesium cement shaving board has excellent performances of high mechanical strength, quick condensation, heat insulation, fire prevention, sound insulation, wear resistance, high dimensional stability and the like.
However, the surface structure of the cement particle board is granular, so that the surface porosity of the base material is high, the roughness is high, the direct pressing and bonding capacity with various decorative paper and veneer is poor, when the veneer particle board is manufactured, the cement particle board needs to be sanded firstly, and the melamine paper or the natural veneer can be pasted after the balance layer is pasted on the sanded surface.
SUMMERY OF THE UTILITY MODEL
The object of the invention of the present application is to provide a veneer particle board which does not require additional balancing layers.
In order to achieve the above purpose, the technical solution of the present application is as follows:
a veneer particle board sequentially comprises a cement particle board, a first adhesive layer and a veneer layer from the center of a board to the surface of the board, wherein the first adhesive layer is directly adhered to the cement particle board and the veneer layer;
the cement particle board consists of a core layer and surface layers positioned on two sides of the core layer, wherein the length of wood shavings in the core layer is more than 60mm, and the length of the wood shavings in the surface layers is less than 60 mm.
In this application, use the less fine wood shaving of length in the top layer of cement shaving board, this roughness that can reduce the cement shaving board to make the cement shaving board of this application have good direct veneer ability, flooding peel strength and surface bonding strength, can directly compound with the finish coat through first gluing agent layer, and need not additionally to set up balanced layer between cement shaving board and finish coat.
In the above-mentioned veneer board, the density of said surface layer is 0.75-0.90g/cm3. The surface layer with high density can further reduce the surface roughness of the cement particle board and further enhance the dipping and peeling strength of the cement particle board.
In the veneer particle board, the core layer is internally provided with sound absorption holes. The sound hole is inhaled in the setting in the sandwich layer and can be given the certain sound-absorbing and sound-insulating properties of inhaling of veneer shaving board of this application, enlarges the application scope of the veneer shaving board of this application.
In the veneer particle board, the sound absorption holes are strip-shaped, and the length extension direction of the sound absorption holes is the same as the plane of the core layer. The sound absorbing hole in the form is convenient to set (the steel bars are pre-embedded before the slurry of the paving core layer and are drawn out after cold press molding), and the volume of the sound absorbing hole is large, so that the sound absorbing and insulating performance of the sound absorbing hole is improved.
In the veneer particle board, the number of the sound absorption holes is at least two, all the sound absorption holes are arranged in a row, and two ends of each sound absorption hole respectively extend to the outer edge of the core layer.
In the above-mentioned veneer particle board, still be equipped with the connecting piece of pegging graft in order to connect two veneer particle boards in the sound-absorbing hole between two adjacent veneer particle boards. So realized inhaling a hole dual-purpose of sound hole, not only realized inhaling the sound and giving sound insulation, still be convenient for the panel to connect.
In the veneer chipboard, the connecting piece comprises a first flexible moisture-proof connecting strip and a second flexible moisture-proof connecting strip which are used in a matched mode, and the first flexible moisture-proof connecting strip and the second flexible moisture-proof connecting strip are arranged around the peripheral edge of the veneer chipboard;
the two opposite sides of the first flexible moisture-proof connecting strip are respectively provided with a convex column which is matched with the sound absorption hole in an inserting way, and the convex columns and the sound absorption holes are arranged in one-to-one correspondence; the second flexible moisture-proof connecting strip is provided with a jack for the convex column to pass through.
The first flexible moisture-proof connecting strips and the second flexible moisture-proof connecting strips are arranged around the four peripheries of the veneer shaving board, so that the four peripheries of the veneer shaving board can be sealed, and the cement shaving board is prevented from absorbing moisture; the convex column on one side of the first flexible moisture-proof connecting strip can be inserted into the sound absorption hole of the veneer chipboard surrounded by the first flexible moisture-proof connecting strip, and the convex column on the other side of the first flexible moisture-proof connecting strip can pass through the insertion hole and be inserted into the sound absorption hole of the veneer chipboard surrounded by the second flexible moisture-proof connecting strip. Thus, the two functions of moisture prevention and moisture absorption prevention and connection of the connecting piece are realized.
In foretell veneer shaving board, first flexible dampproofing connecting strip and second flexible dampproofing connecting strip and veneer shaving board between all be equipped with the mounting. The mounting can assist the projection and inhale the sound hole, fixes first flexible dampproofing connecting strip and the flexible dampproofing connecting strip of second on the veneer shaving board more firmly.
In the above-mentioned veneer board, the veneer layer comprises at least one of a wood veneer layer and melamine paper.
In the above-mentioned veneer board, the wood veneer is at least one of a poplar veneer layer, a technical wood veneer layer and an augsman veneer layer.
Compared with the prior art, the beneficial effect of this application is embodied in:
in this application, use the less fine wood shaving of length in the top layer of cement shaving board, this roughness that can reduce the cement shaving board to make the cement shaving board of this application have good direct veneer ability, flooding peel strength and surface bonding strength, can directly compound with the finish coat through first gluing agent layer, and need not additionally to set up balanced layer between cement shaving board and finish coat.
Drawings
FIG. 1 is a schematic view of a cross-sectional view of a veneer particle board according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of a veneer particle board according to the present invention (example 1);
FIG. 3 is a cross-sectional view taken along line A-A of a veneer particle board of the present invention (example 2);
FIG. 4 is a cross-sectional view taken along line A-A of a veneer particle board of the present invention (example 3);
FIG. 5 is a cross-sectional view taken along line A-A of a veneer particle board of the present invention (example 4);
figure 6 is a cross-sectional view a-a of a veneer particle board of the present invention (example 5).
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 1 and fig. 2, the veneer particle board of the present embodiment includes a cement particle board 1, a first adhesive layer 2 and a veneer layer 3 in sequence from the center of the board to the surface of the board, in the present embodiment, the veneer layer 3 is melamine paper 31, and the first adhesive layer 2 is directly adhered to the cement particle board 1 and the melamine paper 31.
The cement shaving board 1 consists of a core layer 11 and surface layers 12 positioned on two sides of the core layer 11, and is made by paving three layers of core layer slurry and surface layer slurry mixed with wood shavings, wherein the length of the wood shavings in the core layer 11 is more than 60mm, and the length of the wood shavings in the surface layers 12 is more than 60mmThe length is less than 60mm, and the density of the surface layer 12 is 0.75g/cm3。
In this embodiment, the wood shavings in the cement particle board 1 are added into the corresponding core layer slurry or surface layer slurry after the following pretreatment steps:
(1) air-drying the wood processing residues until the water content is 14-25%; and then the length of the chips is 30-120mm, the width is 5-20mm, and the thickness is 0.20-0.80mm through a crusher and a slicing machine, the chips are mechanically screened out to obtain coarse wood chips with the length of more than 60mm as a core layer raw material, and 80% of fine wood chips with the length of less than 60mm and 20% of sawdust as a surface layer raw material for later use.
(2) Respectively soaking corresponding wood shavings (i.e. coarse wood shavings/fine wood shavings + sawdust) in 1% sodium hydroxide solution for degradation treatment, taking out after 40-60min, cleaning until pH of the washing liquid is 7-9, and draining;
(3) drying the drained wood shavings in a drying oven at 103 ℃ for 6-8h to enable the water content of the wood shavings to be close to the fiber saturation point (the free water is just evaporated, and the combined water is in a saturated state), taking out, spraying a proper amount of water on the surfaces of the wood shavings, increasing the surface humidity, and providing water for a subsequent high-temperature and high-humidity environment;
(4) putting wood shavings into a high-temperature heat treatment box at 120 ℃, heating the treatment temperature from 120 ℃ to 150 ℃ at the speed of 10 ℃/h, preserving the heat at 150 ℃ for 30min, then cooling to 103 ℃, and drying until the water content is 4-12%.
The wood shavings are sequentially subjected to special alkali treatment and high-temperature heat treatment, wherein the alkali treatment can degrade part of cellulose and lignin in the wood shavings and reduce amorphous areas of wood, so that the moisture absorption performance of the cement shaving board 1 is reduced and the dimensional stability is improved; on one hand, the high-temperature heat treatment can prevent the cell walls of the wood shavings from excessively shrinking and destroy the length of microfibril, so that the microfibril in a crystallization area is arranged more compactly and orderly, the density of the wood shavings and even the cement shaving board 1 is reduced, the mechanical strength is improved, on the other hand, guide channels and pores in the wood shavings can be opened, the wood shavings lose the closing capacity, the permeability of the wood shavings is improved, and the penetration and the flowing and spreading of an adhesive are facilitated; thereby make cement shaving board 1 have good direct veneer ability, flooding peel strength and surface bonding strength, can directly compound with veneer layer 3 through first gluing agent layer 2, and need not additionally to set up balanced layer between cement shaving board 1 and veneer layer 3.
As shown in fig. 1 and shown in fig. 2, a row of sound-absorbing holes 13 are formed in a core layer 11 of the cement particle board 1, the sound-absorbing holes 13 are strip-shaped and arranged in parallel, the length extending direction of the sound-absorbing holes is the same as the plane of the core layer 11, and two ends of the sound-absorbing holes 13 extend to the outer edge of the core layer 11 respectively. Set up in sandwich layer 11 and inhale sound hole 13 and can give the certain sound-absorbing and sound-insulating properties of inhaling of veneer shaving board of this application, enlarge the application scope of the veneer shaving board of this application.
The sound absorbing holes 13 are formed in various ways, for example, steel bars are embedded before the slurry of the paved core layer, and the sound absorbing holes 13 can be formed in the core layer 11 by drawing out the steel bars after cold press molding.
As shown in fig. 1, in this embodiment, a connecting member 4 inserted into the sound absorption hole 13 to connect two facing chipboards is further disposed between two adjacent facing chipboards; the connecting piece 4 comprises a first flexible moisture-proof connecting strip 41 and a second flexible moisture-proof connecting strip 42 which are matched for use, the first flexible moisture-proof connecting strip 41 and the second flexible moisture-proof connecting strip 42 are respectively arranged around the four peripheries of a facing shaving board, and edge seals are formed at the peripheral edges of the facing shaving board to prevent the facing shaving board from absorbing moisture; meanwhile, the two opposite sides of the first flexible moisture-proof connecting strip 41 are respectively provided with a convex column 43 which is matched with the sound absorption hole 13 in an inserting manner, and the convex columns 43 and the sound absorption holes 13 are arranged in a one-to-one correspondence manner; and the second flexible moisture-proof connecting strip 42 is provided with a jack 44 for the convex column 43 to pass through, and the convex column 43 and the sound absorption hole 13 (and the jack 44) which are mutually inserted and matched can realize the connection and fixation of two adjacent facing chipboards.
As shown in fig. 1, a fixing member 5 is disposed between each of the first flexible moisture-proof connecting strip 41 and the second flexible moisture-proof connecting strip 42 and the facing chipboard, the fixing member 5 used in this embodiment is a screw 51, and two screws 51 fix two ends of each of the first flexible moisture-proof connecting strip 41 and the second flexible moisture-proof connecting strip 42 to the facing chipboard.
Example 2
As shown in fig. 1 and fig. 3, the veneer board of the present embodiment includes a cement particle board 1, a first adhesive layer 2 and a veneer layer 3 in sequence from the center of the board to the surface of the board, in the present embodiment, the veneer layer 3 is an auguman veneer layer 32, and the first adhesive layer 2 is directly adhered to the cement particle board 1 and the auguman veneer layer 32.
The cement particle board 1 of this example was the same as example 1.
Example 3
As shown in fig. 1 and fig. 3, the veneer particle board of this embodiment includes that cement particle board 1, first adhesive layer 2 and veneer layer 3 are in proper order from the panel center to the panel surface, and in this embodiment, this veneer layer 3 includes science and technology veneer layer 33, second adhesive layer 34 and melamine paper 31 in proper order, and this first adhesive layer 2 is direct to be glued with cement particle board 1 and science and technology veneer layer 33.
The cement particle board 1 of this example was the same as example 1.
Example 4
As shown in fig. 1 and fig. 3, the veneer board of the present embodiment includes a cement particle board 1, a first adhesive layer 2 and a veneer layer 3 in sequence from the center of the board to the surface of the board, in the present embodiment, the veneer layer 3 includes a poplar veneer layer 35, a second adhesive layer 34 and an auguman veneer layer 32 in sequence, and the first adhesive layer 2 is directly adhered to the cement particle board 1 and the poplar veneer layer 35.
The cement particle board 1 of this example was the same as example 1.
Example 5
As shown in fig. 1 and fig. 3, the veneer particle board of the present embodiment includes a cement particle board 1, a first adhesive layer 2 and a veneer layer 3 in sequence from the center of the board to the surface of the board, in the present embodiment, the veneer layer 3 includes a poplar veneer layer 35, a second adhesive layer 34, a technical wood veneer layer 33, a third adhesive layer 36 and melamine paper 31 in sequence, and the first adhesive layer 2 is directly adhered to the cement particle board 1 and the poplar veneer layer 35.
The cement particle board 1 of this example was the same as example 1.
Claims (10)
1. A veneer particle board is characterized by sequentially comprising a cement particle board (1), a first adhesive layer (2) and a veneer layer (3) from the center of a board to the surface of the board, wherein the first adhesive layer (2) is directly adhered to the cement particle board (1) and the veneer layer (3);
the cement particle board (1) consists of a core layer (11) and surface layers (12) positioned on two sides of the core layer (11), wherein the length of wood shavings in the core layer (11) is greater than 60mm, and the length of the wood shavings in the surface layers (12) is less than 60 mm.
2. A particle board with a veneer according to claim 1, characterised in that the density of the surface layer (12) is 0.75-0.90g/cm3。
3. A particle board with a veneer surface according to claim 2, characterised in that the core layer (11) is provided with sound-absorbing holes (13).
4. A particle board with a veneer according to claim 3, characterized in that the sound-absorbing holes (13) are strip-shaped, and the length of the sound-absorbing holes (13) extends in the same direction as the plane of the core layer (11).
5. A particle board with decorative surface according to claim 4, wherein said sound-absorbing holes (13) are at least two, all the sound-absorbing holes (13) are arranged in a row, and both ends of the sound-absorbing holes (13) extend to the outer edge of the core layer (11).
6. A particle board with a veneer according to claim 5, characterized in that between two adjacent particle boards there are also provided connectors (4) inserted in the sound-absorbing holes (13) for connecting the two particle boards.
7. A particle board with a veneer surface according to claim 6, characterised in that the connecting elements (4) comprise a first flexible moisture-proof connecting strip (41) and a second flexible moisture-proof connecting strip (42) which are used in pairs, wherein the first flexible moisture-proof connecting strip (41) and the second flexible moisture-proof connecting strip (42) are arranged around the periphery of the particle board with the veneer surface;
convex columns (43) which are matched with the sound absorption holes (13) in an inserting mode are arranged on two opposite sides of the first flexible moisture-proof connecting strip (41), and the convex columns (43) are arranged in one-to-one correspondence with the sound absorption holes (13); the second flexible moisture-proof connecting strip (42) is provided with a jack (44) for the convex column (43) to pass through.
8. A faced particle board according to claim 7, characterised in that the first and second flexible moisture barrier ribs (41, 42) are secured to the board by fasteners (5).
9. A faced particle board according to any of claims 1-8, wherein said veneer layer (3) comprises at least one of wood veneer layers and melamine paper (31).
10. A faced particle board according to claim 9, wherein said wood veneer is at least one of a poplar veneer layer (35), a technical wood veneer layer (33) and an augsman veneer layer (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499303.0U CN210500697U (en) | 2019-04-12 | 2019-04-12 | Veneer shaving board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499303.0U CN210500697U (en) | 2019-04-12 | 2019-04-12 | Veneer shaving board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210500697U true CN210500697U (en) | 2020-05-12 |
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ID=70542020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920499303.0U Active CN210500697U (en) | 2019-04-12 | 2019-04-12 | Veneer shaving board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210500697U (en) |
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- 2019-04-12 CN CN201920499303.0U patent/CN210500697U/en active Active
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Address after: 5 / F, building 1, 152 yunyun street, Liangzhu street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Qiannianzhou New Material Technology Group Co.,Ltd. Address before: 311100 No. 50 Gouyun Road, Liangzhu Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: TREEZO NEW MATERIAL TECHNOLOGY GROUP Co.,Ltd. |