CN113682014A - Asymmetric-structure technical wood veneered multilayer board and manufacturing method thereof - Google Patents
Asymmetric-structure technical wood veneered multilayer board and manufacturing method thereof Download PDFInfo
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- CN113682014A CN113682014A CN202110855781.2A CN202110855781A CN113682014A CN 113682014 A CN113682014 A CN 113682014A CN 202110855781 A CN202110855781 A CN 202110855781A CN 113682014 A CN113682014 A CN 113682014A
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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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention belongs to the technical field of decorative plates, and particularly relates to a technical wood veneered multilayer board with an asymmetric structure and a manufacturing method thereof. According to the invention, the technical veneer, the base veneer, the upper layer veneer, the middle veneer, the reinforced veneer and the protective veneer are sequentially glued and matched with the specific performance parameters of the veneers, so that the advantage that the multilayer board is suitable for the position of the carriage bottom board is achieved. The invention has the following advantages: the upper surface of the first multilayer board is friction-resistant, the silencing performance is outstanding, the second multilayer board is easy to decorate, the lower surface of the first multilayer board is good in weather resistance, the service life of the first multilayer board directly facing to a road surface is long, the multilayer board is large in overall structural strength, not easy to deform, high in stability, good in nail-holding power, environment-friendly and material-saving; and secondly, the manufacturing method of the multilayer board is simple and efficient, the working condition parameters of the manufacturing steps are reasonably set, and the whole manufacturing process is low in cost and high in efficiency.
Description
Technical Field
The invention belongs to the technical field of decorative plates, and particularly relates to a technical wood veneered multilayer board with an asymmetric structure and a manufacturing method thereof.
Background
Technical wood, also called recombined decorative material, is a novel wood decorative material which is prepared by using common wood or fast-growing wood as a raw material and performing various technical improvements on the raw material by utilizing a bionics principle and adopting a computer simulation design method. Because of the convenient material selection, clear texture and rich color, the material is widely applied to the surface decoration fields of the core-board, the laminated wood and the like.
On the other hand, the overall layered structure of the existing multilayer plywood on the market is generally symmetrical up and down, so that the use requirements cannot be correspondingly met when the existing multilayer plywood is used in different use environments with the upper side and the lower side. For example, in the field of automobile decoration, the upper surface of the plywood for the floor of a high-grade carriage is required to be friction-resistant and easy to re-decorate, while the lower surface of the plywood for the floor of the carriage is directly opposite to a muddy road surface, so that the lower surface of the plywood for the floor of the carriage is required to have good weather resistance, aging resistance and bearing strength, and the plywood with symmetrical upper and lower sides is not suitable for use.
Therefore, there is a need for a multilayer board with an asymmetric structure, which has an excellent upper surface wear resistance and a good lower surface weather resistance, and the multilayer board decorated by technical wood can be used for the bottom board of a high-grade carriage.
Patent publication No. is CN212656499U, the china utility model patent that bulletins day is 2021.03.05 discloses a science and technology veneer wood multilayer laminate flooring, including lock joint base plate and bottom backplate, be convenient for fixed mounting through the lock joint base plate and use, it is more convenient when assembling like this, and effectively avoid assembling the damage when assembling, and the wooden texture through upside science and technology veneer, make fine texture pattern has, thereby satisfy different personnel's user needs, and through the nanostructure in the outside, play fine guard action like this, fix on the backplate of bottom through inboard plank hot pressing adhesion, be difficult for droing when using like this, and in the time of concatenation, through outside plank, the protruding type of inboard plank and middle plank one end and the concave type of the other end, make the concatenation fixed use of being convenient for.
But the utility model discloses a science and technology veneer wood multilayer laminate flooring in the patent, its structure only includes lock joint base plate, bottom backplate and outside plank, consequently when carriage bottom plate department uses, the effective life of lower surface is just not long, and overall structure intensity is relatively poor.
Disclosure of Invention
The invention aims to provide a technical wood veneered multilayer board with an asymmetric structure and a manufacturing method thereof, which can achieve the advantage that the multilayer board is suitable for the position of a carriage bottom board by sequentially gluing a technical veneer, a base veneer, an upper layer veneer, a middle veneer, a reinforced veneer and a protective veneer and matching with the specific performance parameters of the boards.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides an asymmetric structure's science and technology wood wainscot multiply wood, includes science and technology wood table board and plywood base, science and technology wood table board includes science and technology veneer and basement veneer, plywood base top-down includes upper veneer, middle veneer, reinforces veneer and protection veneer, the thickness of science and technology wood table board is less than plywood base, the biggest in the plywood base be the protection veneer, secondly strengthen the veneer.
In the invention, the technical wood veneer is made of the technical wood, namely the recombined decorative material, and has the advantages of friction resistance, good silencing effect and easy bonding of glue, so that when the recombined decorative wood veneer is used at the bottom plate of a carriage, pedestrians walk on the recombined decorative wood veneer more safely and comfortably, and the upper surface of the multilayer board is also convenient to decorate.
In addition, the protection veneer is directly opposite to a muddy road surface, and the lower surface of the multilayer board has enough durability through the most basic mode, namely the mode of increasing the thickness.
The further preferred technical scheme is as follows: the base veneer, the upper layer veneer, the middle veneer, the reinforced veneer and the protective veneer can be recombined decorative material veneers or natural wood veneers.
In the invention, the base veneer, the upper veneer, the middle veneer, the reinforced veneer and the protective veneer do not have the use requirement of re-decoration, but the recombined decorative material veneer, namely the technical wood has the advantages of not only increasing beautiful patterns but also changing and improving the structural strength of the original thin wood board, so that the base veneer, the upper veneer, the middle veneer, the reinforced veneer and the protective veneer can also adopt the recombined decorative material veneer to further improve the structural strength and the service life of the multilayer board.
The further preferred technical scheme is as follows: the number of the reinforced single plates is 1-3, and the reinforced single plates are arranged in the thickness direction.
In the invention, the multi-layer board can be provided with nails, so that the multi-layer board is required to have a considerable nail holding capacity, and the nails cannot be driven into the protection single board, so that the structural integrity of the protection single board is prevented from being influenced, and the structural strength of the protection single board is prevented from being reduced, so that the top-down depth of the reinforced single board is the nail entering depth, and the number of the reinforced single boards is flexibly selected, so that the requirements of different nail installation and use scenes can be met.
The further preferred technical scheme is as follows: the thickness of the scientific wood veneer is 0.25-0.50 mm, the water content is 5-10%, the thickness of the substrate veneer is 1.5-2.5mm, and the water content is 6-10%.
The further preferred technical scheme is as follows: the thickness of the upper layer veneer and the middle veneer is 1.5-2.5mm, the water content is 6-16%, the thickness of the reinforced veneer is 3.0-3.5mm, the water content is 6-16%, the thickness of the protective veneer is 4.0-5.0mm, and the water content is 6-16%.
In the present invention, if the water content of each of the veneers in the technical wood surface plate and the plywood base plate is too high, the problem of the plate being mildewed and deformed easily occurs, and if the water content of each of the veneers is too low, the problem of the plate being dried and cracked easily occurs, so that the water content is determined.
And wherein the technical wood surface plate has a moisture content that is less than the plywood base plate as a whole to correspond to the relatively humid characteristic of the indoor use environment of the technical wood surface plate.
A manufacturing method of a technical wood veneered multilayer board with an asymmetric structure sequentially comprises the following steps:
s1, hot-pressing and gluing the technical wood veneer and the substrate veneer to obtain the technical wood surface plate;
s2, hot-pressing and gluing the upper veneer, the middle veneer, the reinforced veneer and the protective veneer at the same time to obtain the glued bottom plate;
and S3, cold-pressing and gluing the technical wood surface plate and the gluing bottom plate to obtain the final technical wood veneered multilayer board.
In the invention, in the respective hot-press gluing manufacturing processes of the technical wood surface plate and the plywood base plate, the water content of the respective single plates is controlled within the proper range and falls off, so that the final S3 risks that the water content of the whole multilayer plate is too low if hot-press gluing is adopted, and the process is ingenious.
The further preferred technical scheme is as follows: in S1, the glue application amount between the scientific wood veneer and the substrate veneer is 100-150g/m2The hot pressing pressure is 2.0-2.5 Mpa, the hot pressing time is 15-25s, and the hot pressing temperature is 160-220 ℃.
The further preferred technical scheme is as follows: in S2, the glue coating amount between the upper veneer, the middle veneer, the reinforced veneer and the protective veneer is 250-300g/m2The hot pressing time is 30-45s, the hot pressing temperature of the upper surface of the upper layer veneer is 140-160 ℃, and the hot pressing temperature of the lower surface of the protective veneer is 180-220 ℃.
Further preferred isThe technical proposal is that: s3, the glue coating amount between the substrate veneer and the upper layer veneer is 160-180g/m2The cold pressing time is 20-30s, and the cold pressing pressure is 1-2 MPa.
The further preferred technical scheme is as follows: in S3, the cold pressing temperature is 40-60 ℃.
The invention has the following advantages: the upper surface of the first multilayer board is friction-resistant, the silencing performance is outstanding, the second multilayer board is easy to decorate, the lower surface of the first multilayer board is good in weather resistance, the service life of the first multilayer board directly facing to a road surface is long, the multilayer board is large in overall structural strength, not easy to deform, high in stability, good in nail-holding power, environment-friendly and material-saving; and secondly, the manufacturing method of the multilayer board is simple and efficient, the working condition parameters of the manufacturing steps are reasonably set, and the whole manufacturing process is low in cost and high in efficiency.
Drawings
Fig. 1 is a schematic view of a layered structure of a technical wood faced multi-layer board according to the present invention.
FIG. 2 is a table showing the results of testing the performance parameters of the multi-layer boards according to 3 embodiments of the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example 1
The utility model provides an asymmetric structure's technical wood wainscot multiply wood, includes technical wood dash board 1 and plywood base plate 2, technical wood dash board 1 includes technical wood skin 1a and basement veneer 1b, 2 top-down of plywood base plate include upper veneer 2a, middle veneer 2b, reinforce veneer 2c and protection veneer 2 d.
The scientific and technological veneer 1a is made of walnut, the thickness of the scientific and technological veneer is 0.25mm, and the water content of the scientific and technological veneer is 6%.
The substrate veneer 1b is made of poplar, the thickness of the substrate veneer is 1.5mm, and the water content of the substrate veneer is 6%.
The upper layer veneer 2a and the middle veneer 2b are made of birch, the thickness is 1.7mm, and the water content is 8%.
The reinforced veneer 2c is made of poplar, the thickness of the reinforced veneer is 3.0mm, and the water content of the reinforced veneer is 10%.
The protection veneer 2d is made of poplar, the thickness of the protection veneer is 4.0mm, and the water content of the protection veneer is 12%.
The base veneer 1b, the upper layer veneer 2a, the middle veneer 2b and the reinforced veneer 2c are all natural wood veneers, and the protective veneer 2d is a recombined decorative material veneer.
The number of the reinforced single plates 2c is 2, and the reinforced single plates are arranged in the thickness direction.
The manufacturing method of the technical wood veneered multilayer board with the asymmetric structure sequentially comprises the following steps:
s1, hot-pressing and gluing the technical wood veneer 1a and the substrate veneer 1b to obtain the technical wood surface plate 1;
s2, hot-pressing and gluing the upper veneer 2a, the middle veneer 2b, the reinforced veneer 2c and the protective veneer 2d at the same time to obtain the gluing bottom plate 2;
and S3, cold-pressing and gluing the technical wood surface plate 1 and the gluing bottom plate 2 to obtain the final technical wood veneered multilayer board.
In S1, the glue application amount between the scientific wood veneer 1a and the base veneer 1b is 100g/m2Hot pressing pressure of 2.0 MPa, hot pressing time of 15s and hot pressing temperature of 160 ℃.
In S2, the gluing amount between the upper veneer 2a, the middle veneer 2b, the reinforced veneer 2c and the protective veneer 2d is 250g/m2The hot pressing time is 30s, the hot pressing temperature of the upper surface of the upper layer veneer 2a is 140 ℃, and the hot pressing temperature of the lower surface of the protective veneer 2d is 180 ℃.
In S3, the glue coating amount between the base veneer 1b and the upper veneer 2a is 160g/m2The cold pressing time is 20s, and the cold pressing pressure is 1 MPa.
In S3, the cold pressing temperature is 40 ℃.
Finally, the technical wood veneered multilayer board finally obtained in the embodiment is tested according to the standards of 4.7, 4.17 and 4.33 in GB/T17657-2013 physicochemical property test methods for artificial boards and veneered artificial boards, and specific numerical values are shown in the attached drawing 2.
It can be seen that the engineered wood veneered composite board in this embodiment meets the physical and chemical performance standards of the artificial board and the veneered artificial board.
Example 2
The utility model provides an asymmetric structure's technical wood wainscot multiply wood, includes technical wood dash board 1 and plywood base plate 2, technical wood dash board 1 includes technical wood skin 1a and basement veneer 1b, 2 top-down of plywood base plate include upper veneer 2a, middle veneer 2b, reinforce veneer 2c and protection veneer 2 d.
The technical wood veneer 1a is made of cherry wood, the thickness of the technical wood veneer is 0.30mm, and the water content of the technical wood veneer is 7%.
The base veneer 1b is made of basswood, the thickness is 1.8mm, and the water content is 8%.
The upper layer veneer 2a and the middle veneer 2b are made of birch, the thickness is 2.0mm, and the water content is 10%.
The reinforced veneer 2c is made of poplar, the thickness of the reinforced veneer is 3.0mm, and the water content of the reinforced veneer is 12%.
The protection veneer 2d is made of poplar, the thickness of the protection veneer is 4.5mm, and the water content of the protection veneer is 14%.
The base veneer 1b, the upper layer veneer 2a, the middle veneer 2b and the reinforced veneer 2c are all natural wood veneers, and the protective veneer 2d is a recombined decorative material veneer.
The number of the reinforced single plates 2c is 3, and the reinforced single plates are arranged in the thickness direction.
The manufacturing method of the technical wood veneered multilayer board with the asymmetric structure sequentially comprises the following steps:
s1, hot-pressing and gluing the technical wood veneer 1a and the substrate veneer 1b to obtain the technical wood surface plate 1;
s2, hot-pressing and gluing the upper veneer 2a, the middle veneer 2b, the reinforced veneer 2c and the protective veneer 2d at the same time to obtain the gluing bottom plate 2;
and S3, cold-pressing and gluing the technical wood surface plate 1 and the gluing bottom plate 2 to obtain the final technical wood veneered multilayer board.
In S1, the glue application amount between the scientific wood veneer 1a and the base veneer 1b is 120g/m2Hot pressing pressure of 2.2 Mpa, hot pressing time of 15s and hot pressing temperature of 180 ℃.
In S2, the upper veneer 2a and the middle veneer2b, the gluing amount between the adjacent reinforced single plate 2c and the protective single plate 2d is 280g/m2The hot pressing time is 32s, the hot pressing temperature of the upper surface of the upper layer veneer 2a is 160 ℃, and the hot pressing temperature of the lower surface of the protective veneer 2d is 180 ℃.
In S3, the glue coating amount between the substrate veneer 1b and the upper layer veneer 2a is 180g/m2The cold pressing time is 20s, and the cold pressing pressure is 1.5 MPa.
In S3, the cold pressing temperature is 40 ℃.
Finally, the technical wood veneered multilayer board finally obtained in the embodiment is tested according to the standards of 4.7, 4.17 and 4.33 in GB/T17657-2013 physicochemical property test methods for artificial boards and veneered artificial boards, and specific numerical values are shown in the attached drawing 2.
It can be seen that the engineered wood veneered composite board in this embodiment meets the physical and chemical performance standards of the artificial board and the veneered artificial board.
Example 3
The utility model provides an asymmetric structure's technical wood wainscot multiply wood, includes technical wood dash board 1 and plywood base plate 2, technical wood dash board 1 includes technical wood skin 1a and basement veneer 1b, 2 top-down of plywood base plate include upper veneer 2a, middle veneer 2b, reinforce veneer 2c and protection veneer 2 d.
The scientific and technological veneer 1a is made of poplar, the thickness of the scientific and technological veneer is 0.50mm, and the water content of the scientific and technological veneer is 7%.
The base veneer 1b is made of basswood, the thickness is 2.0mm, and the water content is 10%.
The upper layer veneer 2a and the middle veneer 2b are made of birch, the thickness is 2.0mm, and the water content is 10%.
The reinforced veneer 2c is made of basswood, the thickness is 3.5mm, and the water content is 14%.
The protection veneer 2d is made of poplar, the thickness of the protection veneer is 5.0mm, and the water content of the protection veneer is 15%.
The base veneer 1b, the upper layer veneer 2a, the middle veneer 2b and the reinforced veneer 2c are all natural wood veneers, and the protective veneer 2d is a recombined decorative material veneer.
The number of the reinforced single boards 2c is 1.
The manufacturing method of the technical wood veneered multilayer board with the asymmetric structure sequentially comprises the following steps:
s1, hot-pressing and gluing the technical wood veneer 1a and the substrate veneer 1b to obtain the technical wood surface plate 1;
s2, hot-pressing and gluing the upper veneer 2a, the middle veneer 2b, the reinforced veneer 2c and the protective veneer 2d at the same time to obtain the gluing bottom plate 2;
and S3, cold-pressing and gluing the technical wood surface plate 1 and the gluing bottom plate 2 to obtain the final technical wood veneered multilayer board.
In S1, the glue application amount between the scientific wood veneer 1a and the base veneer 1b is 120g/m2Hot pressing pressure of 2.25Mpa, hot pressing time of 20s and hot pressing temperature of 200 ℃.
In S2, the gluing amount between the upper veneer 2a, the middle veneer 2b, the reinforced veneer 2c and the protective veneer 2d is 300g/m2The hot pressing time is 40s, the hot pressing temperature of the upper surface of the upper layer veneer 2a is 160 ℃, and the hot pressing temperature of the lower surface of the protective veneer 2d is 220 ℃.
In S3, the glue coating amount between the substrate veneer 1b and the upper layer veneer 2a is 180g/m2The cold pressing time is 25s, and the cold pressing pressure is 1.5 MPa.
In S3, the cold pressing temperature is 45 ℃.
Finally, the technical wood veneered multilayer board finally obtained in the embodiment is tested according to the standards of 4.7, 4.17 and 4.33 in GB/T17657-2013 physicochemical property test methods for artificial boards and veneered artificial boards, and specific numerical values are shown in the attached drawing 2.
It can be seen that the engineered wood veneered composite board in this embodiment meets the physical and chemical performance standards of the artificial board and the veneered artificial board.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. The utility model provides an asymmetric structure's technical wood wainscot multiply wood which characterized in that: including technical wood dash board (1) and plywood base plate (2), technical wood dash board (1) includes technical wood skin (1 a) and basement veneer (1 b), plywood base plate (2) top-down includes upper veneer (2 a), middle veneer (2 b), reinforces veneer (2 c) and protection veneer (2 d), the thickness of technical wood dash board (1) is less than plywood base plate (2), the biggest thickness is in plywood base plate (2) protection veneer (2 d), secondly reinforce veneer (2 c).
2. The asymmetrical structural engineered wood faced plywood of claim 1 wherein: the base veneer (1 b), the upper layer veneer (2 a), the middle veneer (2 b), the reinforced veneer (2 c) and the protective veneer (2 d) can be recombined decorative material veneers or natural wood veneers.
3. The asymmetrical structural engineered wood faced plywood of claim 1 wherein: the number of the reinforced single plates (2 c) is 1-3, and the reinforced single plates are arranged in the thickness direction.
4. The asymmetrical structural engineered wood faced plywood of claim 1 wherein: the thickness of the scientific wood veneer (1 a) is 0.25-0.50 mm, the water content is 5-10%, the thickness of the substrate veneer (1 b) is 1.5-2.5mm, and the water content is 6-10%.
5. The asymmetrical structural engineered wood faced plywood of claim 1 wherein: the thickness of the upper layer veneer (2 a) and the thickness of the middle layer veneer (2 b) are 1.5-2.5mm, the water content is 6-16%, the thickness of the reinforced veneer (2 c) is 3.0-3.5mm, the water content is 6-16%, the thickness of the protective veneer (2 d) is 4.0-5.0mm, and the water content is 6-16%.
6. The manufacturing method of the technical wood veneered multilayer board with the asymmetric structure according to claim 1 is characterized by sequentially comprising the following steps of:
s1, hot-pressing and gluing the technical wood veneer (1 a) and the substrate veneer (1 b) to obtain the technical wood surface plate (1);
s2, hot-pressing and gluing the upper veneer (2 a), the middle veneer (2 b), the reinforced veneer (2 c) and the protective veneer (2 d) at the same time to obtain the gluing bottom plate (2);
and S3, cold-pressing and gluing the technical wood surface plate (1) and the gluing bottom plate (2) to obtain the final technical wood veneered multilayer board.
7. The method for manufacturing the technical wood veneered multilayer board with the asymmetric structure according to claim 6, is characterized in that: in S1, the glue application amount between the scientific wood veneer (1 a) and the substrate veneer (1 b) is 100-150g/m2The hot pressing pressure is 2.0-2.5 Mpa, the hot pressing time is 15-25s, and the hot pressing temperature is 160-220 ℃.
8. The method for manufacturing the technical wood veneered multilayer board with the asymmetric structure according to claim 6, is characterized in that: in S2, the glue coating amount between the upper layer veneer (2 a), the middle veneer (2 b), the reinforced veneer (2 c) and the protective veneer (2 d) is 250-300g/m2The hot pressing time is 30-45s, the hot pressing temperature of the upper surface of the upper layer veneer (2 a) is 140-160 ℃, and the hot pressing temperature of the lower surface of the protective veneer (2 d) is 180-220 ℃.
9. The method for manufacturing the technical wood veneered multilayer board with the asymmetric structure according to claim 6, is characterized in that: in S3, the glue coating amount between the substrate veneer (1 b) and the upper layer veneer (2 a) is 160-180g/m2Cold pressing time 20-30s and 1-2MPa of cold pressure.
10. The method for manufacturing the technical wood veneered multilayer board with the asymmetric structure according to claim 6, is characterized in that: in S3, the cold pressing temperature is 40-60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110855781.2A CN113682014A (en) | 2021-07-28 | 2021-07-28 | Asymmetric-structure technical wood veneered multilayer board and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110855781.2A CN113682014A (en) | 2021-07-28 | 2021-07-28 | Asymmetric-structure technical wood veneered multilayer board and manufacturing method thereof |
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