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.
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.