CN110748074A - Novel melamine paper facing board with LVL structure and manufacturing method thereof - Google Patents
Novel melamine paper facing board with LVL structure and manufacturing method thereof Download PDFInfo
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- CN110748074A CN110748074A CN201911154568.8A CN201911154568A CN110748074A CN 110748074 A CN110748074 A CN 110748074A CN 201911154568 A CN201911154568 A CN 201911154568A CN 110748074 A CN110748074 A CN 110748074A
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- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 46
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000002023 wood Substances 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000007731 hot pressing Methods 0.000 claims description 52
- 239000000835 fiber Substances 0.000 claims description 22
- 238000000465 moulding Methods 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 5
- 238000005034 decoration Methods 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 230000009967 tasteless effect Effects 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 30
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 24
- 238000009413 insulation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
-
- 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
- B32B21/042—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 of wood
-
- 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
- B32B21/06—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 of paper or cardboard
-
- 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
- B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
Abstract
The invention belongs to the technical field of integrated boards, and particularly relates to a novel melamine paper faced board with a LVL structure and a manufacturing method thereof. The laminated veneer is formed by processing and compounding the LVL solid wood veneers serving as base materials by adopting a special production process, belongs to a novel high-tech building decoration material, overcomes the defect problems of the traditional plates, has excellent performance and stable structure, and greatly reduces the deformation and warping probability of the plates. The environment-friendly floor is healthy and environment-friendly, meets the modern environment-friendly requirement, is nontoxic, tasteless, formaldehyde-free and soundproof, and can be widely applied to medical space, education space, office space, business space, home space and the like.
Description
Technical Field
The invention relates to a novel melamine paper veneer board with an LVL structure and a manufacturing method thereof, belonging to the technical field of integrated boards.
Background
Original interior decoration plate material: the core-board, the splint, the shaving board and the density board have short service life, are easy to get damp, peel off, mildew, fall off, crack and the like, are considered to be caused in the using process by many people, and are actually caused by building materials with low technical content. In addition, the existing plate has problems in the aspects of environmental protection, sound insulation, appearance and the like, and the using effect is poor.
Disclosure of Invention
According to the defects in the prior art, the technical problems to be solved by the invention are as follows: the novel plate with the melamine paper veneer of the LVL structure has the advantages of stable performance, difficult deformation, high mechanical strength, scratch resistance, shock resistance, strong weather resistance, strong impact resistance, strong anti-cracking and anti-bulging capacity, low static electricity, difficult adsorption of powder dust, no toxicity, no odor and no formaldehyde, and a manufacturing method thereof.
The novel melamine paper veneer board with the LVL structure comprises an LVL structure layer, wherein a wood veneer I, a wood veneer II and a veneer are sequentially attached to the LVL structure layer from the LVL structure layer to the outside, and melamine paper is attached to the surface of the wood veneer II.
Fiber breaking grooves are punched on the upper surface and the lower surface of the LVL structural layer.
The fiber breaking grooves are distributed in a groined shape.
The depth of the fiber breaking groove is 1-5 mm.
The LVL structure layer, the wood veneer I, the wood veneer II and the melamine paper are bonded through a small amount of aldehyde-free glue, the LVL structure layer formed by the vertical wood chips is stable, and the wood chips of the LVL structure layer can be pulled through the wood veneer I and the wood veneer II, so that the structural stability is realized, and the force applied in all directions can be borne. The upper surface and the lower surface of the LVL structure layer are subjected to fiber breaking treatment, and the fiber breaking grooves can be punched by blades perpendicular to the fiber direction of the plate or other directions, so that the growing fibers on the surface of the plate can be effectively broken, the influence of the self stress of the plate on deformation is reduced, and the deformation probability of the plate is greatly reduced. Moreover, the invention avoids the internal powder structures such as fiber boards, particle boards and the like, thereby greatly reducing the glue consumption, having high environmental protection coefficient and meeting the modern environmental protection requirement.
The invention also avoids the defect that the expansion coefficient of powdery structures such as density boards and the like is larger after absorbing water, and has better moisture resistance.
When the sound wave passes through the invention, multiple cross-medium transmission is formed (air-wood veneer II-wood veneer I-LVL structural layer-veneer I-wood veneer II-air, and a non-formaldehyde glue layer is also mixed in the middle), so that the sound insulation performance of the board is greatly improved, and the board has good sound insulation performance and good use effect when being used for manufacturing doors or wallboards.
The invention discloses a manufacturing method of a novel melamine paper veneer board with an LVL structure, which comprises the following steps:
①, drying a wood board with the thickness of 1-3 mm, uniformly coating molding glue on two sides, sequentially pasting the wood board according to the grain assembly, and performing hot-press gluing to form an LVL structure layer;
②, cutting into blocks, uniformly coating molding glue on the front and back surfaces of the LVL structure layer, paving a wood veneer I with the thickness of 1-2 mm on the front and back surfaces, and performing hot-pressing molding;
③, sanding the two sides of the board after hot pressing, evenly coating molding glue on the front and back sides of the board after sanding, paving a wood veneer II with the thickness of 1-2 mm, enabling the fiber direction of the wood veneer II and the fiber direction of the wood veneer I paved and pasted for the first time to be in a horizontal and vertical cross type, and performing hot pressing again after paving and pasting;
④, taking out after hot pressing, sanding both sides of the melamine paper again, laying a layer of melamine paper flat after sanding, placing the board prepared in the step ③ on the melamine paper, laying a layer of melamine paper flat on the board, and hot-pressing and molding the melamine paper on the upper and lower sides of the board.
When the moisture content of the wood is too high, the wood can be subjected to moisture removal and shrinkage, otherwise, the wood can be subjected to moisture absorption and expansion, the moisture content difference of adjacent wood chips is not too large, the deviation of the moisture content of the wood is controlled within 2%, and the dry shrinkage stress of the wood can be effectively reduced.
In the step ②, after the laminated veneer is cut into blocks, the roughness of the upper and lower surfaces of the LVL structure layer can be equal to the effect after sanding, that is, the veneer bonding requirement is met, the temperature of the hot pressing treatment is 100-120 ℃, the hot pressing pressure is 1.5-2.5 MPa, and the hot pressing time can be shortened to 30-60S due to the higher roughness, so that the required bonding strength can be achieved.
In the step ③, the roughness Ra of the sanded steel is 30-50, the temperature of hot pressing treatment is 100-120 ℃, the hot pressing pressure is 1.5-2.5 MPa, and the hot pressing time is 30-60S.
In the step ④, the melamine paper is used as the outer facing of the board, so that the roughness of the wood veneer II adhered with the melamine paper is not too high, the smoothness of the melamine paper is ensured, the roughness Ra after sanding is 15-30, if the hot pressing temperature is too high, the resin cannot flow and solidify uniformly, so that tiny holes are formed on the surface, and the hot pressing time is shortened by increasing the hot pressing temperature to improve the yield, so that the defect is that the paper facing is easy to rebound and not smooth, only under the action of proper temperature and pressure, the resin in the melamine decorative paper is melted and solidified to form a closed and compact surface, and the surface of the base material can be filled, so that the quality and the performance of the product are effectively improved, the temperature of the hot pressing treatment is controlled to be 130-160 ℃, the hot pressing pressure is 1-1.2 MPa, demolding after pressing is facilitated, the hot pressing time can be shortened, the yield is improved, and the hot pressing time is 15-30S on the premise of ensuring the quality, so that the production efficiency can be effectively improved.
Compared with the prior art, the invention has the beneficial effects that:
the novel melamine paper veneer board with the LVL structure can be widely applied to medical space, education space, office space, commercial space, home space and the like. The LVL solid wood composite material is formed by processing and compounding a LVL solid wood veneer with excellent performance and stable structure serving as a base material by adopting a special production process, and has the advantages of scratch resistance, shock resistance, sound insulation, strong weather resistance, strong impact resistance, strong cracking and bulging resistance, low static electricity, difficulty in absorbing powder dust, no toxicity, no odor, no formaldehyde and the like.
In dry, cold and wet weather, the novel plate with the LVL structure melamine paper veneer has stable performance, can resist high temperature of 40-80 ℃ and low temperature of-40-60 ℃, cannot deform or soften, and can be normally used;
the surface density of the novel plate with the LVL structure melamine paper veneer is 0.8-1.2g/cm3, the building load is reduced, the weight of the building interior wall is reduced by more than 60%, and the novel plate is light and is beneficial to structural earthquake resistance.
The invention belongs to a novel high-tech building decoration material, and overcomes the defect problems of the traditional plate. The LVL structural layer has the advantages that the performance is excellent, the structure is stable, the upper surface and the lower surface of the LVL structural layer are punched with fiber breaking grooves, the growing fibers on the surface of the plate are effectively broken, the influence of the self stress of the plate on deformation is reduced, and the deformation and warping probability of the plate is greatly reduced. Compared with common plates, the high-strength high.
The environment-friendly formaldehyde-free formaldehyde release agent is healthy and environment-friendly, has no formaldehyde release, is not added with chemical raw materials, is prepared from EO-grade environment-friendly raw materials, uses formaldehyde-free glue, has extremely low formaldehyde content which is less than or equal to 0.034mg/m3The environment-friendly coefficient is high, reaches the E0 grade (the formaldehyde release amount is less than or equal to 0.5mg/L) of the domestic standard, reaches the F4 star grade (the formaldehyde release amount is less than or equal to 0.3mg/L) of the Japanese F series, and meets the modern environment-friendly requirement. Creates a green, healthy and comfortable environment for people to study, work and live. The base material is natural plant fiber, does not contain asbestos, formaldehyde and harmful volatile pollutants, and is non-toxic and odorless.
The base material has the advantages of energy conservation and consumption reduction, light weight, low breakage rate, long service life, light installation, high construction speed, reduction of material and energy waste, reduction of the overall cost investment, reduction of the material and energy waste and the overall cost investment, full representation of resource saving benefits and obvious social and economic benefits.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. melamine paper; 2. wood veneer II; 3. a wood veneer I; 4. a fiber breaking groove; 5. and an LVL structural layer.
Detailed Description
The invention is further described below with reference to examples:
as shown in fig. 1, the novel melamine paper faced board with LVL structure according to the present invention includes a LVL structure layer 5, from the LVL structure layer 5 to the outside, a wood veneer I3 and a wood veneer II2 are sequentially attached, and melamine paper 1 is attached to the surface of the wood veneer II 2.
The thickness of the LVL structural layer 5 is 12mm, the thickness of the wood veneer I3 and the thickness of the wood veneer II2 are 2mm, the thickness of the melamine paper 1 is ignored, and the overall thickness of the plate is 20 mm.
The upper and lower surfaces of the LVL structure layer 5 of this embodiment are punched with fiber-breaking grooves 4 by a punch.
The fiber breaking grooves 5 of the present embodiment are distributed in a groined shape.
The depth of the fiber breaking groove 5 in this embodiment is 2 mm.
The manufacturing method of the novel plate with the LVL structure melamine paper veneer comprises the following steps:
①, drying a wood board with the thickness of 1-3 mm, uniformly coating molding glue on two sides, sequentially pasting the wood board according to the grain assembly, and performing hot-press gluing to form an LVL structure layer;
②, cutting into blocks, uniformly coating molding glue on the front and back surfaces of the LVL structure layer, paving a wood veneer I with the thickness of 1-2 mm on the front and back surfaces, and performing hot-pressing molding;
③, taking out the double-sided sanding after the hot-pressing treatment, uniformly coating molding glue on the front and back sides after sanding, paving and pasting a wood veneer II with the thickness of 1-2 mm, enabling the fiber direction of the wood veneer II and the fiber direction of the wood veneer I paved and pasted for the first time to be in a horizontal and vertical cross type, and performing hot-pressing treatment again and molding after paving and pasting;
④, taking out after hot pressing, sanding both sides of the melamine paper again, laying a layer of melamine paper flat after sanding, placing the board prepared in the step ③ on the melamine paper, laying a layer of melamine paper flat on the board, and hot-pressing and molding the melamine paper on the upper and lower sides of the board.
In step ①, the moisture content of the dried wood is about 10%, the hot-pressing gluing temperature is 105 ℃, the hot-pressing pressure is 1.7MPa, and the hot-pressing time is 90S.
In step ②, the temperature of the hot pressing treatment is 105 ℃, the hot pressing pressure is 1.7MPa, and the hot pressing time is 45S.
In step ③, the roughness Ra after sanding is 40, the temperature of the hot pressing treatment is 105 ℃, the hot pressing pressure is 1.7MPa, and the hot pressing time is 45S.
In step ④, the roughness Ra after sanding is 20, the temperature of the hot pressing treatment is 145 ℃, the hot pressing pressure is 1.1MPa, and the hot pressing time is 20S.
LVL structure veneer UV veneer novel decorative board main quality technical index:
the laminated veneer is formed by processing and compounding the LVL solid wood veneers serving as base materials by adopting a special production process, belongs to a novel high-tech building decoration material, overcomes the defect problems of the traditional plates, has excellent performance and stable structure, and greatly reduces the deformation and warping probability of the plates. The sound insulation board is healthy and environment-friendly, meets the modern environment-friendly requirement, is nontoxic, tasteless, formaldehyde-free and sound-proof, the sound insulation amount of the embodiment is 42-46 db, can reach 44db on average, and the sound insulation amount of common fiber boards and solid particle boards is 20-23 db and 18-22 db under the same condition. The invention has excellent comprehensive performance and can be widely used in medical space, education space, office space, business space, home space and the like.
Claims (9)
1. The utility model provides a novel panel of LVL structure melamine paper veneer which characterized in that: the laminated veneer structure comprises an LVL structural layer (5), wherein a wood veneer I (3) and a wood veneer II (2) are sequentially attached to the LVL structural layer (5) outwards, and melamine paper (1) is attached to the surface of the wood veneer II (2).
2. The novel sheet material with the LVL structure melamine paper veneer according to claim 1, characterized in that: and fiber breaking grooves (4) are punched on the upper surface and the lower surface of the LVL structural layer (5).
3. The novel sheet material with the LVL structure melamine paper veneer according to claim 2, characterized in that: the fiber breaking grooves (4) are distributed in a groined shape.
4. The novel sheet material with the LVL structure melamine paper veneer according to claim 2, characterized in that: the depth of the fiber breaking groove (4) is 1-5 mm.
5. A method for manufacturing the novel sheet material with the melamine paper veneer in the LVL structure, according to claim 1, is characterized by comprising the following steps:
①, drying a wood board with the thickness of 1-3 mm, uniformly coating molding glue on two sides, sequentially pasting the wood board according to the grain assembly, and performing hot-press gluing to form an LVL structure layer;
②, cutting into blocks, uniformly coating molding glue on the front and back surfaces of the LVL structure layer, paving a wood veneer I with the thickness of 1-2 mm on the front and back surfaces, and performing hot-pressing molding;
③, taking out the double-sided sanding after the hot-pressing treatment, uniformly coating molding glue on the front and back sides after sanding, paving and pasting a wood veneer II with the thickness of 1-2 mm, enabling the fiber direction of the wood veneer II and the fiber direction of the wood veneer I paved and pasted for the first time to be in a horizontal and vertical cross type, and performing hot-pressing treatment again and molding after paving and pasting;
④, taking out after hot pressing, sanding both sides of the melamine paper again, laying a layer of melamine paper flat after sanding, placing the board prepared in the step ③ on the melamine paper, laying a layer of melamine paper flat on the board, and hot-pressing and molding the melamine paper on the upper and lower sides of the board.
6. The manufacturing method of the LVL structure melamine paper faced novel board as claimed in claim 5, wherein in the step ①, the moisture content of the dried wood is 9.5% -11%, the hot-pressing gluing temperature is 100-120 ℃, the hot-pressing pressure is 1.5-2.5 MPa, and the hot-pressing time is 60S-120S.
7. The manufacturing method of the LVL structure melamine paper faced novel board as claimed in claim 5, wherein in the step ②, the temperature of the hot pressing treatment is 100-120 ℃, the hot pressing pressure is 1.5-2.5 MPa, and the hot pressing time is 30-60S.
8. The manufacturing method of the LVL structure melamine paper faced novel board as claimed in claim 5, wherein in the step ③, the roughness Ra after sanding is 30-50, the temperature of hot pressing treatment is 100-120 ℃, the hot pressing pressure is 1.5-2.5 MPa, and the hot pressing time is 30-60S.
9. The manufacturing method of the LVL structure melamine paper faced novel board as claimed in claim 5, wherein in the step ④, the roughness Ra after sanding is 15-30, the temperature of hot pressing treatment is 130-160 ℃, the hot pressing pressure is 1-1.2 MPa, and the hot pressing time is 15-30S.
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CN201911154568.8A CN110748074A (en) | 2019-11-19 | 2019-11-19 | Novel melamine paper facing board with LVL structure and manufacturing method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114055903A (en) * | 2021-10-25 | 2022-02-18 | 合肥轩赢木业有限公司 | Production equipment and production method of energy-saving environment-friendly building board |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114055903A (en) * | 2021-10-25 | 2022-02-18 | 合肥轩赢木业有限公司 | Production equipment and production method of energy-saving environment-friendly building board |
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Application publication date: 20200204 |