CN211250420U - Impregnated bond paper veneer blockboard with core board and filling layer applied - Google Patents
Impregnated bond paper veneer blockboard with core board and filling layer applied Download PDFInfo
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- CN211250420U CN211250420U CN201921945523.8U CN201921945523U CN211250420U CN 211250420 U CN211250420 U CN 211250420U CN 201921945523 U CN201921945523 U CN 201921945523U CN 211250420 U CN211250420 U CN 211250420U
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Abstract
The utility model discloses a core board and impregnated bond paper veneer lumber core board applied by a filling layer, which comprises a core board, an upper filling layer and a lower filling layer which are symmetrically arranged at the upper side and the lower side of the core board, and decorative layers which are respectively arranged at the upper surface of the upper filling layer and the lower surface of the lower filling layer; the core plate is formed by splicing a plurality of core strips, each core strip is formed by hot pressing after N layers of single plates are assembled, the superposition direction of the single plates is positioned in the width direction of the core strip, the grain following direction of the single plates is positioned in the length direction of the core strip, and N is more than or equal to 2; the upper filling layer and the lower filling layer are structures formed by paving and hot-pressing particle wood. The utility model discloses make board anti deformability stronger, the performance is more stable, life is longer, is applicable to the panel field.
Description
Technical Field
The utility model belongs to the panel field relates to a furniture board, and specifically speaking is a impregnated bond paper veneer lumber core board that core and filling layer used.
Background
Because the shortage of natural wood resources is increasing, and the artificial wood boards can make full use of the leftover bits and pieces of wood, and improve the utilization rate of wood, so various artificial wood boards are increasingly applied to building decoration.
In the existing artificial board, when a core strip of a core plate is manufactured, after a plurality of layers of single board assemblies are hot-pressed, the superposition direction of the single boards is usually arranged in the thickness direction of the core strip, and the grain-following direction of the single boards is arranged in the length direction of the core strip. Because the deformation of the single board along the grain direction cannot be limited by the superposition direction of the single boards in the core board structure, the obtained core board and the core board applied by the core board are easy to warp along the grain direction of the single boards, and the transverse static bending strength and the surface flatness of the core board and the core board applied by the core board are influenced.
In addition, the core board and the single-layer board have defects such as depressions, indentations, holes, cracks and the like, and if the core board and the single-layer board are not improved and treated in the process of manufacturing the core board and the single-layer board, the defects on the surfaces of the core board and the single-layer board are only covered but not eliminated, and the defects can cause quality problems such as carbonization, cracking, foaming and the like of the surface of the core board and the single-layer board.
The problems not only reduce the service life of the board and worsen the external aesthetic property, but also influence the market sale of the blockboard and reduce the production benefit of enterprises.
Disclosure of Invention
In order to solve the above-mentioned defects existing in the prior art, the utility model aims at providing a impregnated bond paper veneer lumber core board and preparation method thereof that core and filling layer used.
The utility model discloses a realize above-mentioned purpose, the technical scheme who adopts as follows:
a core board and a laminated wood board with impregnated bond paper veneer applied to a filling layer comprise a core board, an upper filling layer and a lower filling layer which are symmetrically arranged on the upper side and the lower side of the core board, and decorative layers respectively arranged on the upper surface of the upper filling layer and the lower surface of the lower filling layer;
the core plate is formed by splicing a plurality of core strips, each core strip is formed by hot pressing after N layers of single plates are assembled, the superposition direction of the single plates is positioned in the width direction of the core strip, the grain following direction of the single plates is positioned in the length direction of the core strip, and N is more than or equal to 2;
the upper filling layer and the lower filling layer are structures formed by paving and hot-pressing particle wood.
By way of limitation, where 13 ≦ N ≦ 15.
As another definition, an upper veneer layer is disposed between the core and the upper filler layer, and a lower veneer layer is disposed between the core and the lower filler layer.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in:
(1) the utility model discloses changed the direction of placing of single board in the core and made the core, the direction of deformation that makes the following grain direction of veneer and core is wrong, thereby make the internal stress in the core change, can effectually prevent that the laminated wood board from leading to its warp deformation along the direction of the following grain of plank because of long-time use, and the horizontal static bending strength of impregnated bond paper veneer laminated wood board that uses this kind of method to make promotes 35 ~ 50MPa, the roughness deviation is not more than 0.9%, the thickness deviation is 0.2mm, thereby make impregnated bond paper veneer laminated wood board performance more stable, and life is longer, also more pleasing to the eye;
(2) the upper filling layer and the lower filling layer of the utility model can fill and level the defects of the core plate, the surface of the upper veneer layer and the lower veneer layer, such as the dent, the indentation, the hole, the crack and the like, so that the defects can not extend to the surface of the block board, the defect of the surface of the block board is avoided, the problem of carbonization of the block board is solved, and the strength of the block board is further improved by arranging the upper veneer layer and the lower veneer layer;
(3) the utility model adopts the scientific and technological veneer or the poplar veneer as the decorative layer, so that the inherent defects of natural wood such as wormholes, knots, color change and the like on the laminated wood board are overcome on the premise of satisfying the decorative effect of people on different tree species, thereby the laminated wood board is more beautiful and satisfies the use requirements of different people;
in conclusion, the transverse static bending strength of the impregnated bond paper veneer lumber core board is improved to 35-50 MPa, the flatness deviation is not more than 0.9%, and the thickness deviation is +/-0.2 mm, so that the impregnated bond paper veneer lumber core board has stronger deformation resistance, more stable performance and longer service life, and is suitable for the field of boards.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic view of the overall structure of a laminated wood board with an impregnated bond paper veneer applied to a core board and a filling layer of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a core board according to embodiment 1 of the present invention;
fig. 3 is an enlarged schematic structural view of a core strip according to embodiment 1 of the present invention.
In the figure: 1. a single board; 2. a core bar; 3. a core board; 4. an upper veneer layer; 5. a lower veneer layer; 6. an upper filling layer; 7. a lower filling layer; 8. and (7) a decorative layer.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Example 1 impregnated bond paper faced engineered wood board with core and fill applications
As shown in fig. 1, the present embodiment includes a core 3 disposed at the center, an upper veneer layer 4 and a lower veneer layer 5 symmetrically disposed on the upper and lower surfaces of the core 3, an upper filling layer 6 disposed on the upper surface of the upper veneer layer 4, a lower filling layer 7 disposed on the lower surface of the lower veneer layer 5, and decorative layers 8 disposed on the upper surface of the upper filling layer 6 and the lower surface of the lower filling layer 7, respectively.
As shown in fig. 2 and 3, the deformation direction of the core board 3 is staggered with the wood grain direction of the veneer 1 by changing the placing direction of the veneer 1 in the core board 3, so that the internal stress in the core board 3 is changed, thereby improving the deformation resistance and the surface flatness of the core board applied to the core board 3. As shown in fig. 2 to 3, the core board 3 of the present embodiment is formed by splicing a plurality of core strips 2, and the core strips 2 are formed by splicing a plurality of single boards 1 by gluing.
And respectively gluing the upper plane and the lower plane of the single plate 1, and stacking N layers in the order from top to bottom to finish the assembly of the single plate 1. Wherein N is more than or equal to 2, preferably 13 is less than or equal to N is less than or equal to 15, and in the embodiment, N = 14. After assembly, a veneer layer is hot-pressed by a general hot press for the production of the laminated wood board to obtain a board square, the board square is cut according to the specified size to form core strips 2, and the length, the width and the thickness of each core strip 2 are 500mm, 45mm and 12mm respectively. Plural as referred to herein is two or more.
When the core strips 2 are spliced, the length of the core strips 2 is greater than the width of the core strips 2, and it is required to ensure that the superposition direction of the single plates 1 is located in the width direction of the core strips 2 and the grain following direction of the single plates 1 is located in the length direction of the core strips 2. That is, the overlapping thickness of the single plate 1 is the width of the core strip 2, and the extending length of the single plate 1 is the extending length of the core strip 2, so that the grain direction of the single plate 1 is staggered with the deformation direction of the core plate 3.
After the core strips 2 are placed, the side surfaces of the core strips 2 are bonded with the other core strip 2 through an adhesive, and the core strips 2 are spliced into the core plate 3 according to the plate manufacturing requirement.
(II) an upper veneer layer 4 and a lower veneer layer 5
The upper surface of the core plate 3 is glued with the veneer layer 4, the lower surface of the core plate 3 is glued with the lower veneer layer 5, and the upper veneer layer 4 and the lower veneer layer 5 are symmetrical about the core plate 3. Wherein, the upper veneer layer 4 and the lower veneer layer 5 are both single-layer veneers or double-layer veneers made of the veneers 1.
(III) Upper 6 and lower 7 Filler layers
The upper surface of the upper veneer layer 4 is provided with the upper filling layer 6, the lower surface of the lower veneer layer 5 is provided with the lower filling layer 7, the upper filling layer and the lower filling layer are formed by wood particles through paving and hot pressing, and the particles can fill and level the defects of pits, indentations, holes, cracks and the like on the surface of the core plate in the paving and hot pressing process, so that the defects cannot extend to the surface of the core board, the defect that the surface of the core board is flawed is avoided, and the problem of carbonization of the core board is solved.
(IV) decorative layer 8
The decorative layer 8 is respectively adhered to the upper surface of the upper filling layer 6 and the lower surface of the lower filling layer 7, the decorative layer is any one of a scientific wood veneer and a poplar veneer, and the decorative layer is used for further decorating the appearance of the board, so that the laminated wood board is more attractive.
Example 2 method for manufacturing impregnated bond paper faced core board using core board and filler layer
The assembly of the single plates 1 is hot-pressed to form a core strip 2
Gluing and bonding the single plate 1 and the single plate 1, and stacking N layers in the order from top to bottom to finish the assembly of the single plate 1. Wherein N is more than or equal to 2, preferably 13 is less than or equal to N is less than or equal to 15, and in the embodiment, N = 14.
And after assembly, carrying out hot pressing on the veneer layer by a hot press, wherein the hot pressing unit pressure is 8-12 kg/square centimeter, the hot pressing time is 15-30 minutes, and the hot pressing temperature is 115-120 ℃, so as to obtain the core strip 2 with the specified size.
It should be ensured that the superposition direction of the N layers of veneers 1 is located in the width direction of the core strip 2, and the grain-following direction of the veneers 1 is located in the length direction of the core strip 2, that is, the superposed thickness of the veneers 1 is the width of the core strip 2, and the extension length of the veneers 1 is the extension length of the core strip 2. That is, the single boards 1 stacked in sequence from top to bottom are rotated by 90 °, so that the single boards 1 are stacked in sequence from left to right, as shown in fig. 3. Thus, the core cane 2 is formed to have a length of 500mm, a width (i.e., the thickness of the stack of veneers 1) of 45mm and a thickness of 12 mm.
(II) Split core strip 2
The side surface of the core strip 2 is bonded with another core strip 2 through an adhesive, and the core strips 2 are spliced to the core-forming plate 3 according to the plate manufacturing requirement.
(III) bonding the upper veneer layer 4 and the lower veneer layer 5
The upper surface of the core plate 3, the lower surface of the upper veneer layer 4 and the upper surface of the lower veneer layer 5 are all coated with glue, then the lower surface of the upper veneer layer 4 and the upper surface of the core plate 3 are fixed by gluing, and the upper surface of the lower veneer layer 5 and the lower surface of the core plate 3 are fixed by gluing. The veneer layer may be a single-layer veneer or a double-layer veneer made of the veneer 1. In this embodiment, a single-layer board is used.
(IV) providing an upper filling layer 6 and a lower filling layer 7
The upper surface of the upper veneer layer 4 is provided with an upper filling layer 6, the lower surface of the lower veneer layer 5 is provided with a lower filling layer 7, and the manufacturing of the upper filling layer 6 and the lower filling layer 7 comprises the following steps: s1, selecting materials, namely selecting a plurality of poplar drying single plate leftovers, wherein the water content of the poplar drying single plate leftovers is less than 8%, the water content can be selected from high-temperature short-pressure production process conditions, the production efficiency is high, the problems that the manufactured core-board is cracked and the like when meeting a drying environment are avoided, the waste leftovers can be selected from the drying single plates, resources are fully utilized, and the cost is reduced; s2, crushing, namely crushing the dried veneer obtained in the step S1 into particles, wherein the particle size range of the crushed particles is 0.5-1.0mm, the particle size is too small to meet the strength requirement of the core-board, and the particle size is too large to densely fill the depressions, holes, cracks and indentations on the surfaces of the upper veneer layer and the lower veneer layer; s3, glue mixing, namely uniformly stirring the particles obtained in the step S2 and an adhesive, wherein the ratio of the adhesive to the particles is that a cubic particle is put into 45-55 kg of the adhesive, and if the amount of the put adhesive is less than the range, the strength of the laminated wood board is poor, and if the amount of the put adhesive is more than the range, the filling layer is too thin and cannot be well formed; s4, paving and hot-pressing, namely paving and hot-pressing the material obtained in the step S3 to form a filling layer, wherein the hot-pressing temperature range is 115-150 ℃, and the hot-pressing unit pressure is 8-12 kg/square centimeter;
(V) bonding decorative layer
The upper surface of the upper filling layer 6 and the lower surface of the lower filling layer 7 are both coated with glue, then the decorative layer 8 is pasted, the decorative layer adopts any one of technical wood veneer and poplar wood veneer, and the decorative layer is used for further decorating the appearance of the board, so that the laminated wood board is more attractive.
Thus, the manufacture of the impregnated bond paper veneer blockboard with the core board and the filling layer applied is completed.
Example 3 method for manufacturing impregnated bond paper faced core board with core board and filler layer applied thereto
The present example is used to manufacture the impregnated bond paper faced core board used in the core board and the filling layer of example 1, and includes the following steps:
cutting the wood sections into veneers 1
And (3) cutting the wood sections into the veneers 1 in a rotary cutting or planing manner, wherein the cutting direction is vertical to the grain direction of the veneers 1, and the grain direction of the obtained veneers 1 is consistent with the length direction of the veneers 1. The wood section is any one of poplar, camphorwood and fir. The obtained veneer 1 had a length of 1265mm, a width of 650mm and a thickness of 3 mm. After drying, the water content of the veneer 1 is less than 8%.
(II) forming a plate square by assembling the single plates 1 and hot-pressing
Gluing and bonding the single plate 1 and the single plate 1, and stacking N layers in the order from top to bottom to finish the assembly of the single plate 1. Wherein N is more than or equal to 2, preferably 13 is less than or equal to N is less than or equal to 15, and in the embodiment, N = 14.
And (3) after assembly, hot pressing the veneer layers by a hot press, wherein the hot pressing unit pressure is 8-12 kg/square centimeter, the hot pressing time is 15-30 minutes, the hot pressing temperature is 115-120 ℃, a veneer with the length of 1265mm, the width of 650mm and the thickness (namely the stacking thickness of the veneer layers) of 45mm +/-0.2 is obtained, and the veneer is used after air cooling.
(III) cutting the board into core strips 2
The plates are sawn to size into core strips 2. It should be ensured that the superposition direction of the N layers of veneers 1 is located in the width direction of the core strip 2, and the grain-following direction of the veneers 1 is located in the length direction of the core strip 2, that is, the superposed thickness of the veneers 1 is the width of the core strip 2, and the extension length of the veneers 1 is the extension length of the core strip 2. That is, the single boards 1 stacked in sequence from top to bottom are rotated by 90 °, so that the single boards 1 are stacked in sequence from left to right, as shown in fig. 3. Thus, the core cane 2 is formed to have a length of 500mm, a width (i.e., the thickness of the stack of veneer layers) of 45mm and a thickness of 12 mm.
(IV) Split core strip 2
The side surface of the core strip 2 is bonded with another core strip 2 through an adhesive, and the core strips 2 are spliced to the core-forming plate 3 according to the plate manufacturing requirement.
(V) bonding the upper veneer layer 4 and the lower veneer layer 5
The upper surface of the core plate 3, the lower surface of the upper veneer layer 4 and the upper surface of the lower veneer layer 5 are all coated with glue, then the lower surface of the upper veneer layer 4 and the upper surface of the core plate 3 are fixed by gluing, and the upper surface of the lower veneer layer 5 and the lower surface of the core plate 3 are fixed by gluing. The veneer layer may be a single-layer veneer or a double-layer veneer made of the veneer 1. In this embodiment, a single-layer board is used.
(VI) providing an upper filling layer 6 and a lower filling layer 7
Set up upper filling layer 6 on last veneer layer 4 upper surface, set up lower filling layer 7 on lower veneer layer 5 lower surface, upper filling layer 6 and lower filling layer 7 include the following step: s1, selecting materials, namely selecting a plurality of poplar drying single plate leftovers, wherein the water content of the poplar drying single plate leftovers is less than 8%, the water content can be selected from high-temperature short-pressure production process conditions, the production efficiency is high, the problems that the manufactured core-board is cracked and the like when meeting a drying environment are avoided, the waste leftovers can be selected from the drying single plates, resources are fully utilized, and the cost is reduced; s2, crushing, namely crushing the dried veneer obtained in the step S2 into particles, wherein the particle size range of the crushed particles is 0.5-1.0mm, the particle size is too small to meet the strength requirement of the core-board, and the particle size is too large to densely fill the depressions, holes, cracks and indentations on the surfaces of the upper veneer layer and the lower veneer layer; s3, glue mixing, namely uniformly stirring the particles obtained in the step S2 and an adhesive, wherein the ratio of the adhesive to the particles is that a cubic particle is put into 45-55 kg of the adhesive, and if the amount of the put adhesive is less than the range, the strength of the laminated wood board is poor, and if the amount of the put adhesive is more than the range, the filling layer is too thin and cannot be well formed; s4, paving and hot-pressing, namely paving and hot-pressing the material obtained in the step S3 to form a filling layer, wherein the hot-pressing temperature range is 115-150 ℃, and the hot-pressing unit pressure is 8-12 kg/square centimeter;
(VII) bonding decorative layer
The upper surface of the upper filling layer 6 and the lower surface of the lower filling layer 7 are both coated with glue, then the decorative layer 8 is pasted, the decorative layer adopts any one of technical wood veneer and poplar wood veneer, and the decorative layer is used for further decorating the appearance of the board, so that the laminated wood board is more attractive.
Thus, the manufacture of the impregnated bond paper veneer blockboard with the core board and the filling layer applied is completed.
The preparation method is the same as the preparation steps of example 2, except that parameters involved in the respective steps are different.
The parameters of step (one) are shown in Table 1 below.
The parameters of step (four) are shown in Table 2 below.
The properties of the obtained impregnated bond paper veneer lumber core board and the impregnated bond paper veneer lumber core board applied by the filling layer are superior to those of the common impregnated bond paper veneer lumber core board, and the properties are shown in table 3. The determination of the transverse static bending strength adopts the national standard GB/T17657-.
Examples 9 to 13 methods of manufacturing a laminated wood board with a surface finish of impregnated bond paper using a core and a filler layer
The preparation method is the same as the preparation steps of example 3, except that parameters involved in the respective steps are different.
The parameters of step (ii) are shown in table 4 below.
The parameters of step (six) are shown in Table 5 below.
The properties of the obtained impregnated bond paper veneer lumber core board and the impregnated bond paper veneer lumber core board applied by the filling layer are superior to those of the common impregnated bond paper veneer lumber core board, and the properties are shown in table 6. The determination of the transverse static bending strength adopts the national standard GB/T17657-.
Example 14 an impregnated bond paper faced engineered wood board having a coreboard and a fill layer applied thereto
The embodiment comprises a core plate arranged in the center, an upper filling layer arranged on the upper surface of the core plate, a lower filling layer arranged on the lower surface of the core plate, and decorative layers respectively arranged on the upper surface of the upper filling layer and the lower surface of the lower filling layer.
Core board
The deformation direction of the core plate is staggered with the wood grain direction of the veneer by changing the placing direction of the veneer in the core plate in the plate, so that the internal stress in the core plate is changed, and the deformation resistance and the surface flatness of the core-board applied to the core plate are improved. The core plate of this embodiment is spliced by bonding a plurality of battens, and the battens is spliced by gluing a plurality of veneers.
And respectively gluing the upper plane and the lower plane of the single plate, and stacking N layers in the order from top to bottom to finish the assembly of the single plate. Wherein N is more than or equal to 2, preferably 13 is less than or equal to N is less than or equal to 15, and in the embodiment, N = 14. After assembly, a veneer layer is hot-pressed by a general hot press for the production of a core board to obtain a board square, and the board square is cut according to the specified size to form core strips, wherein the length of each core strip is 500mm, the width of each core strip is 45mm, and the thickness of each core strip is 12 mm. Plural as referred to herein is two or more.
When the core strips are spliced, the length of the core strips is larger than the width of the core strips, and the overlapping direction of the single plates is required to be ensured to be positioned in the width direction of the core strips, and the grain following direction of the single plates is required to be positioned in the length direction of the core strips. The superposed thickness of the single plates 1 is the width of the core strip 2, and the extension length of the single plates is the extension length of the core strip, so that the grain direction of the single plates is staggered with the deformation direction of the core plate.
After the core strips are placed, the side surfaces of the core strips are bonded with another core strip through an adhesive, and the core strips are spliced into the core plate according to the plate manufacturing requirement.
(II) upper and lower filling layers
The upper surface of the core plate is provided with the upper filling layer, the lower surface of the core plate is provided with the lower filling layer, the upper filling layer and the lower filling layer are formed by wood particles through paving and hot pressing, and the particles can fill and level the defects of depressions, indentations, holes, cracks and the like on the surface of the core plate in the paving and hot pressing process, so that the defects cannot extend to the surface of the block board, the defect that the block board shows to appear is avoided, and the problem of block board carbonization is solved.
(III) decorative layer
The decorative layer is respectively stuck on the upper surface of the upper filling layer and the lower surface of the lower filling layer, the decorative layer adopts any one of technical wood veneer and poplar veneer, and the decorative layer is used for further decorating the appearance of the board, so that the laminated wood board is more attractive.
Example 15 method of making impregnated bond paper faced engineered wood boards with core and fill applications
This example was used to make the impregnated bond paper faced core board of example 14 with the application of a filler layer, comprising the steps of:
hot pressing of single board assembly to form core strip
And respectively gluing the upper plane and the lower plane of the single plate, and stacking N layers in the order from top to bottom to finish the assembly of the single plate. Wherein N is more than or equal to 2, preferably 13 is less than or equal to N is less than or equal to 15, and in the embodiment, N = 14.
And after assembly, carrying out hot pressing on the veneer layer by a hot press, wherein the hot pressing unit pressure is 8-12 kg/square centimeter, the hot pressing time is 15-30 minutes, and the hot pressing temperature is 115-120 ℃, so as to obtain the core strip 2 with the specified size.
It needs to be ensured that the superposition direction of the N layers of veneers is located in the width direction of the core strip, and the grain-following direction of the veneers is located in the length direction of the core strip, i.e. the superposed thickness of the veneers is the width of the core strip, and the extension length of the veneers is the extension length of the core strip. That is, the single boards stacked in sequence from top to bottom are rotated by 90 degrees, so that the single boards are stacked in sequence from left to right. Thus, the core rod is formed to have a length of 500mm, a width (i.e., the thickness of the stack of veneers 1) of 45mm, and a thickness of 12 mm.
(II) split core strip
And (3) bonding the side surface of the core strip with another core strip 2 through an adhesive, and splicing the core strip 2 into a core forming plate according to the plate manufacturing requirement.
(III) arranging an upper filling layer and a lower filling layer
The upper surface of the core plate is provided with an upper filling layer, the lower surface of the core plate is provided with a lower filling layer, and the upper filling layer and the lower filling layer comprise the following steps: s1, selecting materials, namely selecting a plurality of drying single plates, wherein the moisture content of the drying single plates is less than 8%, the moisture content can be selected from high-temperature short-pressing production process conditions, the production efficiency is high, the problems that the manufactured core-board cracks and the like when meeting a drying environment are avoided, the drying single plates can be selected from waste leftovers, resources are fully utilized, and the cost is reduced; s2, crushing, namely crushing the dried veneer obtained in the step S1 into particles, wherein the particle size range of the crushed particles is 0.5-1.0mm, the particle size is too small to meet the strength requirement of the core-board, and the particle size is too large to densely fill the depressions, holes, cracks and indentations on the surfaces of the upper veneer layer and the lower veneer layer; s3, glue mixing, namely uniformly stirring the particles obtained in the step S2 and an adhesive, wherein the ratio of the adhesive to the particles is that a cubic particle is put into 45-55 kg of the adhesive, and if the amount of the put adhesive is less than the range, the strength of the laminated wood board is poor, and if the amount of the put adhesive is more than the range, the filling layer is too thin and cannot be well formed; s4, paving and hot-pressing, namely paving and hot-pressing the material obtained in the step S3 to form a filling layer, wherein the hot-pressing temperature range is 115-150 ℃, and the hot-pressing unit pressure is 8-12 kg/square centimeter;
(IV) bonding decorative layer
The upper surface of last filling layer and the lower surface of lower filling layer all the rubber coating, then paste the decorative layer, the decorative layer adopts any one in science and technology veneer, poplar veneer, and the decorative layer is to the further decoration of panel outward appearance, makes the laminated wood board more rich in the aesthetic feeling.
Example 16 method of making impregnated bond paper faced engineered wood boards with core and fill applications
This example was used to make the impregnated bond paper faced core board of example 14 with the application of a filler layer, comprising the steps of:
cutting the wood segments into veneers
And (3) cutting the wood sections into the single plates in a rotary cutting or planing manner, wherein the cutting direction is vertical to the grain direction of the single plates, and the grain direction of the obtained single plates is consistent with the length direction of the single plates. The wood section is any one of poplar, camphorwood and fir. The obtained veneer 1 had a length of 1265mm, a width of 650mm and a thickness of 3 mm. After drying, the water content of the veneer 1 is less than 8%.
(II) forming a plate square by hot-pressing the single plate assembly
And respectively gluing the upper plane and the lower plane of the single plate 1, and stacking N layers in the order from top to bottom to finish the assembly of the single plate 1. Wherein N is more than or equal to 2, preferably 13 is less than or equal to N is less than or equal to 15, and in the embodiment, N = 14.
And (3) after assembly, hot pressing the veneer layers by a hot press, wherein the hot pressing unit pressure is 8-12 kg/square centimeter, the hot pressing time is 15-30 minutes, the hot pressing temperature is 115-120 ℃, a veneer with the length of 1265mm, the width of 650mm and the thickness (namely the stacking thickness of the veneer layers) of 45mm +/-0.2 is obtained, and the veneer is used after air cooling.
(III) cutting the board into core strips
And sawing the plate square into core strips according to the specified size. It is required to ensure that the overlapping direction of the layer veneer is located in the width direction of the core strip, and the grain direction of the veneer is located in the length direction of the core strip, that is, the overlapping thickness of the veneer is the width of the core strip, and the extension length of the veneer is the extension length of the core strip. That is, the single boards stacked in sequence from top to bottom are rotated by 90 degrees, so that the single boards are stacked in sequence from left to right. Thus, the resulting core strip had a length of 500mm, a width (i.e., the thickness of the stack of veneer layers) of 45mm, and a thickness of 12 mm.
(IV) splicing core strip
And (3) bonding the side surface of the core strip with another core strip 2 through an adhesive, and splicing the core strip 2 into a core forming plate according to the plate manufacturing requirement.
(V) arranging an upper filling layer and a lower filling layer
The upper surface of the core plate is provided with an upper filling layer, the lower surface of the core plate is provided with a lower filling layer, and the upper filling layer and the lower filling layer comprise the following steps: s1, selecting materials, namely selecting a plurality of drying single plates, wherein the moisture content of the drying single plates is less than 8%, the moisture content can be selected from high-temperature short-pressing production process conditions, the production efficiency is high, the problems that the manufactured core-board cracks and the like when meeting a drying environment are avoided, the drying single plates can be selected from waste leftovers, resources are fully utilized, and the cost is reduced; s2, crushing, namely crushing the dried veneer obtained in the step S1 into particles, wherein the particle size range of the crushed particles is 0.5-1.0mm, the particle size is too small to meet the strength requirement of the core-board, and the particle size is too large to densely fill the depressions, holes, cracks and indentations on the surfaces of the upper veneer layer and the lower veneer layer; s3, glue mixing, namely uniformly stirring the particles obtained in the step S2 and an adhesive, wherein the ratio of the adhesive to the particles is that a cubic particle is put into 45-55 kg of the adhesive, and if the amount of the put adhesive is less than the range, the strength of the laminated wood board is poor, and if the amount of the put adhesive is more than the range, the filling layer is too thin and cannot be well formed; s4, paving and hot-pressing, namely paving and hot-pressing the material obtained in the step S3 to form a filling layer, wherein the hot-pressing temperature range is 115-150 ℃, and the hot-pressing unit pressure is 8-12 kg/square centimeter;
(VI) bonding decorative layer
The upper surface of last filling layer and the lower surface of lower filling layer all the rubber coating, then paste decorative layer 8, the decorative layer adopts any one in science and technology veneer, poplar veneer, and the decorative layer is to the further decoration of panel outward appearance, makes the laminated wood board more rich in the aesthetic feeling.
Thus, the manufacture of the impregnated bond paper veneer blockboard with the core board and the filling layer applied is completed.
Examples 17 to 21 methods of manufacturing impregnated bond paper faced core-board using core board and filler layer
The preparation procedure was the same as that of example 15 except that the parameters involved in each step were different.
The parameters of step (one) are shown in Table 7 below.
The parameters of step (three) are shown in Table 8 below.
The properties of the obtained impregnated bond paper facing core board and the impregnated bond paper facing core board applied by the filling layer are superior to those of the common impregnated bond paper facing core board, and are shown in table 9. The determination of the transverse static bending strength adopts the national standard GB/T17657-.
Examples 22-26 methods of making impregnated bond paper faced engineered wood boards with fill layer application
The preparation procedure was the same as that of example 16 except that the parameters involved in each step were different.
The parameters of step (two) are shown in Table 10 below.
The parameters of step (five) are shown in Table 11 below.
The properties of the obtained impregnated bond paper veneer lumber core board and the impregnated bond paper veneer lumber core board applied by the filling layer are superior to those of the common impregnated bond paper veneer lumber core board, and the properties are shown in table 12. The determination of the transverse static bending strength adopts the national standard GB/T17657-.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a glued membrane paper veneer lumber core board of flooding that coreboard and filling layer applied which characterized in that: the decorative layer comprises a core plate, an upper filling layer, a lower filling layer and decorative layers, wherein the upper filling layer and the lower filling layer are symmetrically arranged on the upper side and the lower side of the core plate;
the core plate is formed by splicing a plurality of core strips, each core strip is formed by hot pressing after N layers of single plates are assembled, the superposition direction of the single plates is positioned in the width direction of the core strip, the grain following direction of the single plates is positioned in the length direction of the core strip, and N is more than or equal to 2;
the upper filling layer and the lower filling layer are structures formed by paving and hot-pressing particle wood.
2. The coreboard and infill layer applied impregnated bond paper faced blockboard of claim 1, wherein: wherein N is more than or equal to 13 and less than or equal to 15.
3. The impregnated bond paper faced core board of claim 1 or 2 with applied filler layer, wherein: an upper veneer layer is arranged between the core plate and the upper filling layer, and a lower veneer layer is arranged between the core plate and the lower filling layer.
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