CN106985225A - One kind exempts from paint shaped agricultural crop straw base Wood-based Panel Furniture material and its manufacture method - Google Patents
One kind exempts from paint shaped agricultural crop straw base Wood-based Panel Furniture material and its manufacture method Download PDFInfo
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- CN106985225A CN106985225A CN201710308865.8A CN201710308865A CN106985225A CN 106985225 A CN106985225 A CN 106985225A CN 201710308865 A CN201710308865 A CN 201710308865A CN 106985225 A CN106985225 A CN 106985225A
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- rotary
- agricultural crop
- crop straw
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- bamboo veneer
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- 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
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
-
- 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
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture material the invention discloses one kind, for layer structure, from top to bottom, successively including melamine impregnated paper layer, rotary-cut bamboo veneer layer, agricultural crop straw inorganic composite materials layer, rotary-cut bamboo veneer layer and melamine impregnated paper layer.The manufacture method of the present invention：Rotary-cut Bamboo veneer is passed through into three roller glue spreader one side roller coat E0 urea-formaldehyde glues；A melamine impregnated paper is first placed on assembly platform, the rotary-cut Bamboo veneer of a coated glue is stacked on melamine impregnated paper, an agricultural crop straw inorganic composite materials plate is stacked on rotary-cut Bamboo veneer again, then the rotary-cut Bamboo veneer of a coated glue is put again, it is last to be covered with a melamine impregnated paper again, constitute slab；Precompressed, thermocompression forming, cooling, cutting edge are carried out to slab, complete to prepare.The present invention solves the technical problem that agricultural crop straw base inorganic composite materials surface smoothness is poor, is directly come off with the compound easily appearance layering of melamine impregnated paper.
Description
Technical field
Exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture the invention belongs to Wood-based Panel Furniture Material Field, more particularly to one kind
Material and its manufacture method.
Background technology
Agricultural crop straw base inorganic composite materials low intensity, density are big, and it is poor to be directly used in Furniture manufacture decorative surface, need
Paint.Agricultural crop straw base inorganic composite materials are combined with melamine impregnated paper can increase its intensity, reduce its density,
Improve its incrustation performance, without paint, be used directly for Furniture manufacturing.But, agricultural crop straw base inorganic compounding material
Surface smoothness is poor, directly with melamine impregnated paper is compound layering easily occurs and the defect such as come off.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of to mention with defect that there is provided one in background above technology
Plant and exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture material and its manufacture method.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
One kind exempts from paint shaped agricultural crop straw base Wood-based Panel Furniture material, is layer structure, from top to bottom, successively including melamine
Impregnated paper, rotary-cut bamboo veneer layer, agricultural crop straw inorganic composite materials layer, rotary-cut bamboo veneer layer and melamine impregnated paper
Layer.
Above-mentioned Wood-based Panel Furniture material, it is preferred that described layer structure is symmetrical structure；Layered structure it
Between bonded by E0 urea-formaldehyde glues.
Above-mentioned Wood-based Panel Furniture material, it is preferred that the thickness of the melamine impregnated paper layer is 0.3-1.0mm；Institute
The thickness for stating rotary-cut bamboo veneer layer is 1-2mm；The thickness of the agricultural crop straw inorganic composite materials layer is 8-15mm；The agriculture
Crop material inorganic composite materials layer for after crop branch fiber and the mixing of silicon systems inorganic adhesive through hot-forming compound
Plate of material.
Above-mentioned Wood-based Panel Furniture material, it is preferred that the bamboo wood texture of the rotary-cut Bamboo veneer and the agricultural crop straw
Inorganic composite materials plate length direction is mutually perpendicular to.
As a total inventive concept, the present invention also provides one kind and exempts from paint shaped agricultural crop straw base Wood-based Panel Furniture material
Manufacture method, comprise the following steps：
（1）It is well mixed after silicon systems inorganic adhesive is atomized with crop branch fiber；
（2）By step（1）Crop branch fiber afterwards mats formation into slab by continuous mechanical spreading machine, then by the slab of gained
Thermocompression forming is carried out, natural curing is dried, obtains agricultural crop straw inorganic composite materials plate；
（3）It is stand-by by rotary-cut Bamboo veneer by three roller glue spreader one side roller coat E0 urea-formaldehyde glues；
（4）A melamine impregnated paper is first placed on assembly platform, coated glue is stacked on melamine impregnated paper
Rotary-cut Bamboo veneer, then stack on rotary-cut Bamboo veneer a step（2）Obtained agricultural crop straw inorganic composite materials plate, then
The rotary-cut Bamboo veneer of coated glue is folded on agricultural crop straw inorganic composite materials plate again, Zhang San's poly cyanamid leaching is finally covered with again
Paint shaped agricultural crop straw base Wood-based Panel Furniture material plate blank is exempted from stain paper, completion；Wherein, the side of the coated glue of rotary-cut Bamboo veneer is close
Agricultural crop straw inorganic composite materials；
（5）The slab is subjected to precompressed, thermocompression forming, cooling, cutting edge, that is, obtains that described to exempt from paint shaped agricultural crop straw base artificial
Plate furniture material.
Above-mentioned manufacture method, it is preferred that the step（1）In, a length of 1-10mm, a width of 1- of crop branch fiber
2mm, thickness are 0.2-0.8mm, and moisture content is not higher than 9%.
Above-mentioned manufacture method, it is preferred that the step（1）In, the quality of crop branch fiber and inorganic adhesive
Than for（20-60）：（40-80）.
Above-mentioned manufacture method, it is preferred that the step（2）In, hot pressing temperature is 130-180 DEG C, and hot pressing pressure is
4.0-5.0MPa, hot pressing time is 40-60s/mm；The time of natural curing is 8-10 days, and dry temperature is 85-90 DEG C, is done
The dry time is 8-10h.
Above-mentioned manufacture method, it is preferred that the step（3）In, the resin added of E0 urea-formaldehyde glues is 80-90g/m2。
Above-mentioned manufacture method, it is preferred that the step（5）In, the time of precompressed is 25-30min；Hot-forming temperature
Spend for 120-130 DEG C, hot pressing pressure is 1.0-1.3MPa, hot pressing time is 2-8min.
Compared with prior art, the advantage of the invention is that：
（1）The present invention's exempts from paint shaped agricultural crop straw base Wood-based Panel Furniture material and common agricultural crop straw inorganic composite materials
Compare, due to having pasted enhancement layer melamine impregnated paper and rotary-cut Bamboo veneer, while avoiding agricultural crop straw inorganic compounding material
Expect contact with air, with performances such as intensity height, light weight, environmental protection, waterproofs, and be not required to paint and be directly used as Furniture manufacturing material
Material.
（2）The present invention to exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture material manufacturing method inorganic multiple by agricultural crop straw
Condensation material base material pastes rotary-cut Bamboo veneer, melamine impregnated paper can be once hot-forming, and manufacture method is simple to operate.
（3）The present invention sets rotary-cut bamboo single between melamine impregnated paper layer and agricultural crop straw inorganic composite materials layer
Flaggy, it is poor to solve agricultural crop straw base inorganic composite materials surface smoothness, directly with melamine impregnated paper is compound easily goes out
Now it is layered the technical problem come off.
（4）The addition of design, especially rotary-cut Bamboo veneer that the present invention passes through five-layer structure, significantly improves the strong of sheet material
Degree.
Brief description of the drawings
Fig. 1 is the structural representation for exempting from paint shaped agricultural crop straw base Wood-based Panel Furniture material of the present invention.
Marginal data：
1st, the first melamine impregnated paper layer；2nd, the first rotary-cut bamboo veneer layer；3rd, agricultural crop straw inorganic composite materials layer；4th,
Two rotary-cut bamboo veneer layers；5th, the second melamine impregnated paper layer.
Embodiment
For the ease of understanding the present invention, do more complete to inventing herein below in conjunction with Figure of description and preferred embodiment
Face, meticulously describe, but protection scope of the present invention is not limited to specific examples below.
Unless otherwise defined, all technical terms used hereinafter are generally understood that implication phase with those skilled in the art
Together.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention's
Protection domain.
Unless otherwise specified, various raw material, reagent, instrument and equipment used in the present invention etc. can be by city
Field is commercially available or can prepared by existing method.
Embodiment 1：
It is a kind of of the invention to exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture material, its structural representation as shown in figure 1, being stratiform
Structure, from top to bottom, successively including the first melamine impregnated paper layer the 1, first rotary-cut bamboo veneer layer 2, agricultural crop straw without
Machine composite layer 3（It is rice straw inorganic composite materials plate in the present embodiment）, the second rotary-cut bamboo veneer layer 4 and the 2nd 3
Poly cyanamid impregnated paper 5；Wherein, the first rotary-cut bamboo veneer layer 2 and the thickness of the second rotary-cut bamboo veneer layer 4 are 1mm；One or three
The thickness of the melamine impregnated paper of poly cyanamid impregnated paper 1 and second layer 5 is 0.3mm；Agricultural crop straw inorganic composite materials
The thickness of layer 3 is 15mm；In view of rotary-cut Bamboo veneer width is limited, and to avoid rotary-cut Bamboo veneer width from splicing, the first rotary-cut
The bamboo wood texture of bamboo veneer layer 2 is mutually perpendicular to rice straw inorganic composite materials plate long side direction, the second rotary-cut bamboo veneer layer
4 bamboo wood texture is also mutually perpendicular to rice straw inorganic composite materials plate long side direction.
The manufacture method for exempting from paint shaped agricultural crop straw base Wood-based Panel Furniture material of the present embodiment, comprises the following steps：
（1）It is prepared by rice-straw fibre：Moisture content is cut to after 10mm stalk section for 20% or so straw stalk, disintegrating machine is delivered to
In the long 1-10mm, width 1-2mm, the thickness 0.2-0.8mm rice-straw fibre that are processed into, it is 9% then to dry to moisture content；
（2）Mix and be glued：Dried rice-straw fibre is transported in periodic mixer, after inorganic adhesive is atomized
Spray into the rice-straw fibre in continuous mixer, mixed rice-straw fibre with inorganic adhesive by periodic mixer
It is even, wherein, the mass ratio of rice-straw fibre and inorganic adhesive is 32：68；
（3）Mat formation shaping：Rice-straw fibre after applying glue mats formation into slab by continuous mechanical spreading machine；
（4）Thermocompression forming：The slab paved is delivered into hot press thermocompression forming, hot pressing temperature is 180 DEG C, and hot pressing pressure is
4.0MPa, hot pressing time is 40s/mm；
（5）Maintenance is with drying：Semi-finished product will be come out from hot press and stack natural curing at normal temperatures 10 days, then deliver to dry kiln and will be existed
8h is dried at a temperature of 85 DEG C；
（6）Edging and sanding：Dried sheet material transport edging is sawed into 1250（It is wide）x2490（It is long）After mm sheet material again
Sanding surface processing is carried out to two-sided wide-belt sander, the thick straw inorganic composite materials plates of 15mm are obtained；
（7）Rotary-cut Bamboo veneer is glued：Rotary-cut Bamboo veneer is passed through into three roller glue spreader one side roller coat E0 urea-formaldehyde glues, resin added 80g/
m2；
（8）Assembly hot pressing：The thick melamine impregnated papers of a 0.3mm are first placed on assembly platform, in melamine impregnated paper
On stack an equal-amplitude surface 1mm is thick, coated E0 urea-formaldehyde glues rotary-cut Bamboo veneer, rotary-cut Bamboo veneer gluing up, then in rotation
Cut Bamboo veneer and stack a rice straw inorganic composite materials plate, note when stacking ensure rotary-cut Bamboo veneer bamboo wood grain direction with
Rice straw inorganic composite materials plate long side direction is vertical.Then, a constant amplitude is stacked on straw inorganic composite materials plate
The 1mm in face is thick, coated glue rotary-cut Bamboo veneer, and this rotary-cut Bamboo veneer gluing down, and ensures rotary-cut Bamboo veneer bamboo wood line
Manage direction vertical with rice straw inorganic composite materials long side direction, be finally covered with a thickness above for 0.3mm trimerizations again
Cyanamide impregnates paper, and so far a plate assembly is completed；Multiple assembly plates are stacked together, preformer precompressed 25min, precompressed is sent into
After end, every slab is sent into periodic multi-daylight press and carries out thermocompression forming, hot pressing temperature is 120 DEG C, and hot pressing pressure is
1.3MPa, hot pressing time is 3min；
（9）Cooling and cutting edge：Sheet material after hot pressing is cooled to less than 50 DEG C by buck machine, that is, obtains exempting from paint shaped agricultural crop straw
Base Wood-based Panel Furniture material, then be transported in length and breadth edging saw be cut into stacking after 1220x2240mm breadth, storage.
The MOR of the agricultural crop straw base Wood-based Panel Furniture material of the present embodiment is up to 41.2MPa, 24h absorber thicknesses
Expansion rate is only 1.3%, and fire-protection rating reaches B1 grades, burst size of methanal≤0.032mg/m3, compared with straw inorganic composite materials
Density reduction by 14.3%, is not in layering obscission using process.
Embodiment 2：
It is a kind of of the invention to exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture material, its structural representation as shown in figure 1, being stratiform
Structure, from top to bottom, successively including the first melamine impregnated paper layer the 1, first rotary-cut bamboo veneer layer 2, agricultural crop straw without
Machine composite layer 3（It is cigarette stalk inorganic composite materials plate in the present embodiment）, the second rotary-cut bamboo veneer layer 4 and the second melamine
Amine impregnated paper 5；The thickness of first rotary-cut bamboo veneer layer 2 is 2mm, and the thickness of the second rotary-cut bamboo veneer layer 4 is 2mm；One or three
The thickness of the melamine impregnated paper of poly cyanamid impregnated paper 1 and second layer 5 is 0.6mm；Agricultural crop straw inorganic composite materials
The thickness of layer 3 is 10mm；Bamboo wood texture and cigarette stalk inorganic composite materials plate length direction phase in first rotary-cut bamboo veneer layer 2
Mutually vertical, the bamboo wood texture in the second rotary-cut bamboo veneer layer 4 is also mutually perpendicular to cigarette stalk inorganic composite materials plate length direction.
The manufacture method for exempting from paint shaped agricultural crop straw base Wood-based Panel Furniture material of the present embodiment, comprises the following steps：
（1）It is prepared by tobacco stalk fiber：Moisture content is cut to after 10mm cigarette stalk section for 20% or so cigarette stalk, delivered in disintegrating machine
Processing growth 1-10mm, width 1-2mm, thickness 0.2-0.8mm tobacco stalk fiber, it is 9% then to dry to moisture content；
（2）Mix and be glued：Tobacco stalk fiber after drying is transported to periodic mixer, sprayed into after inorganic adhesive is atomized
In tobacco stalk fiber in continuous mixer, tobacco stalk fiber is well mixed with inorganic adhesive by periodic mixer；Its
In, tobacco stalk fiber and inorganic adhesive weight ratio are 45：55；
（3）Mat formation shaping：Tobacco stalk fiber after applying glue is mated formation into slab by continuous mechanical spreading machine；
（4）Thermocompression forming：The slab paved is delivered into hot press thermocompression forming, hot pressing temperature is 170 DEG C, and hot pressing pressure is
5.0MPa, hot pressing time is 50s/mm；
（5）Maintenance is with drying：The semi-finished product come out from hot press are stacked into natural curing 10 days at normal temperatures, then deliver to dry kiln
In at a temperature of 85 DEG C dry 8h；
（6）Edging and sanding：Dried sheet material transport edging is sawed into 1220（It is wide）x2440（It is long）After mm sheet material again
Sanding surface processing is carried out to two-sided wide-belt sander, thickness is obtained for 10mm straw inorganic composite materials plates；
（7）Rotary-cut Bamboo veneer is glued：Rotary-cut Bamboo veneer is passed through into three roller glue spreader one side roller coat E0 urea-formaldehyde glues, resin added 80g/
m2；
（8）Assembly hot pressing：The thick melamine impregnated papers of a 0.6mm are first placed on assembly platform, in melamine impregnated paper
On stack an equal-amplitude surface 2mm is thick, coated glue rotary-cut Bamboo veneer, rotary-cut Bamboo veneer gluing is up, then single in rotary-cut bamboo
Plate stacks a cigarette stalk inorganic composite materials plate, the 2mm for then stacking equal-amplitude surface on cigarette stalk inorganic composite materials is thick,
The rotary-cut Bamboo veneer of coated E0 urea-formaldehyde glues, this rotary-cut Bamboo veneer gluing down, is finally covered with a 0.6mm thickness above again
Melamine impregnated paper, so far plate assembly complete；Multiple assembly plates are stacked together, preformer precompressed is sent into
25min；After precompressed terminates, every slab is sent into periodic multi-daylight press and carries out thermocompression forming, hot pressing temperature is 130 DEG C,
Hot pressing pressure is 1.3MPa, and hot pressing time is 5min；
（9）Cooling and cutting edge：Sheet material after hot pressing is cooled to less than 50 DEG C by buck machine, that is, obtains exempting from paint shaped agricultural crop straw
Base Wood-based Panel Furniture material, then be transported in length and breadth edging saw be cut into stacking after 1220x2240mm breadth, storage.
The MOR of the agricultural crop straw base Wood-based Panel Furniture material of the present embodiment is up to 45.8MPa, 24h absorber thicknesses
Expansion rate is only 1.12%, and fire-protection rating reaches B1 grades, burst size of methanal≤0.032mg/m3, with straw inorganic composite materials phase
Specific density reduction by 13.2%, is not in layering obscission using process.
Embodiment 3：
It is a kind of of the invention to exempt from paint shaped agricultural crop straw base Wood-based Panel Furniture material, its structural representation as shown in figure 1, being stratiform
Structure, from top to bottom, successively including the first melamine impregnated paper layer the 1, first rotary-cut bamboo veneer layer 2, agricultural crop straw without
Machine composite layer 3（It is cornstalk inorganic composite materials plate in the present embodiment）, the second rotary-cut bamboo veneer layer 4 and the second trimerization
Cyanamide impregnated paper 5；The thickness of first rotary-cut bamboo veneer layer 2 is 2mm, and the thickness of the second rotary-cut bamboo veneer layer 4 is 2mm；First
The thickness of melamine impregnated paper layer 1 and the second melamine impregnated paper layer 5 is 1.0mm；Agricultural crop straw inorganic compounding material
The thickness of the bed of material 3 is 8mm；Bamboo wood texture and cornstalk inorganic composite materials plate length direction in first rotary-cut bamboo veneer layer 2
It is mutually perpendicular to, the bamboo wood texture in the second rotary-cut bamboo veneer layer 4 mutually hangs down with cornstalk inorganic composite materials plate length direction
Directly.
The manufacture method for exempting from paint shaped agricultural crop straw base Wood-based Panel Furniture material of the present embodiment, comprises the following steps：
（1）It is prepared by cornstalk fibers：The cornstalk that moisture content is 20% or so is cut to 10mm cornstalk section, delivered to broken
Processing growth 1-10mm, width 1-2mm, thickness 0.2-0.8mm cornstalk fibers in machine, it is 9% then to dry to moisture content；
（2）Mix and be glued：Cornstalk fibers are transported in periodic mixer after drying, are sprayed after inorganic adhesive is atomized
Enter in the cornstalk fibers in continuous mixer, be well mixed cornstalk fibers with inorganic adhesive by mixer, its
In, the weight ratio of cornstalk fibers and inorganic adhesive is 38：62；
（3）Mat formation shaping：Cornstalk fibers after applying glue are mated formation into slab by continuous mechanical spreading machine；
（4）Thermocompression forming：The slab paved is delivered into hot press thermocompression forming, hot pressing temperature is 180 DEG C, and hot pressing pressure is
4.5MPa, hot pressing time is 45s/mm；
（5）Maintenance is with drying：It will be come out from hot press and natural curing 8 days is stacked under semi-finished product normal temperature, then deliver to dry kiln 90
9h is dried at a temperature of DEG C；
（6）Edging and sanding：Dried sheet material transport edging is sawed into 1220（It is wide）x2440（It is long）After mm sheet material again
Sanding surface processing is carried out to two-sided wide-belt sander, the cornstalk inorganic composite materials plate that thickness is 8mm is obtained；
（7）Rotary-cut Bamboo veneer is glued：Rotary-cut Bamboo veneer is passed through into three roller glue spreader one side roller coat E0 urea-formaldehyde glues, resin added 80g/
m2；
（8）Assembly hot pressing：Thickness 1.0mm melamine impregnated paper is first placed on assembly platform, in melamine impregnated paper
On stack an equal-amplitude surface 2mm is thick, coated glue rotary-cut Bamboo veneer, rotary-cut Bamboo veneer gluing is up, then single in rotary-cut bamboo
Plate stacks a cornstalk inorganic composite materials plate, and the 2mm of a breadth is then stacked on cornstalk inorganic composite materials
The rotary-cut veneer of thick, coated E0 urea-formaldehyde glues, this rotary-cut Bamboo veneer gluing down, is finally covered with a thickness above again
For 1.0mm melamine impregnated paper, so far a plate assembly completion；Multiple assembly plates are stacked together, preformer is sent into
Precompressed 30min；After precompressed terminates, every slab is sent into periodic multi-daylight press and carries out thermocompression forming；Hot pressing temperature is 120
DEG C, hot pressing pressure is 1.5MPa, and hot pressing time is 4min；
（9）Cooling and cutting edge：Sheet material after hot pressing is cooled to less than 50 DEG C by buck machine, that is, obtains exempting from paint shaped agricultural crop straw
Base Wood-based Panel Furniture material, then be transported in length and breadth edging saw be cut into stacking after 1220x2240mm breadth, storage.
The MOR of the agricultural crop straw base Wood-based Panel Furniture material of the present embodiment is up to 42.4MPa, 24h absorber thicknesses
Expansion rate is only 1.22%, and fire-protection rating reaches B1 grades, burst size of methanal≤0.032mg/m3, with straw inorganic composite materials phase
Specific density reduction by 15%, is not in layering obscission using process.
Claims (10)
1. one kind exempts from paint shaped agricultural crop straw base Wood-based Panel Furniture material, it is characterised in that be layer structure, from top to bottom, according to
It is secondary including melamine impregnated paper layer, rotary-cut bamboo veneer layer, agricultural crop straw inorganic composite materials layer, rotary-cut bamboo veneer layer and three
Poly cyanamid impregnated paper.
2. Wood-based Panel Furniture material as claimed in claim 1, it is characterised in that described layer structure is symmetrical structure；
Bonded between layered structure by E0 urea-formaldehyde glues.
3. Wood-based Panel Furniture material as claimed in claim 1, it is characterised in that the thickness of the melamine impregnated paper layer is
0.3-1.0mm；The thickness of the rotary-cut bamboo veneer layer is 1-2mm；The thickness of agricultural crop straw inorganic composite materials layer is
8-15mm。
4. Wood-based Panel Furniture material as claimed in claim 1, it is characterised in that the agricultural crop straw inorganic composite materials layer
Through hot-forming composite panel after being mixed for crop branch fiber and silicon systems inorganic adhesive；The rotary-cut Bamboo veneer
Bamboo wood texture is mutually perpendicular to the agricultural crop straw inorganic composite materials plate length direction.
5. a kind of manufacture method for exempting from paint shaped agricultural crop straw base Wood-based Panel Furniture material, it is characterised in that comprise the following steps：
（1）It is well mixed after silicon systems inorganic adhesive is atomized with crop branch fiber；
（2）By step（1）Crop branch fiber afterwards mats formation into slab by continuous mechanical spreading machine, then by the slab of gained
Thermocompression forming is carried out, natural curing is dried, obtains agricultural crop straw inorganic composite materials plate；
（3）It is stand-by by rotary-cut Bamboo veneer by three roller glue spreader one side roller coat E0 urea-formaldehyde glues；
（4）A melamine impregnated paper is first placed on assembly platform, coated glue is stacked on melamine impregnated paper
Rotary-cut Bamboo veneer, then stack on rotary-cut Bamboo veneer a step（2）Obtained agricultural crop straw inorganic composite materials plate, then
The rotary-cut Bamboo veneer of coated glue is folded on agricultural crop straw inorganic composite materials again, a melamine-impregnated is finally covered with again
Paint shaped agricultural crop straw base Wood-based Panel Furniture material plate blank is exempted from paper, completion；
（5）The slab is subjected to precompressed, thermocompression forming, cooling, cutting edge, that is, obtains that described to exempt from paint shaped agricultural crop straw base artificial
Plate furniture material.
6. manufacture method as claimed in claim 5, it is characterised in that the step（1）In, crop branch fiber it is a length of
1-10mm, a width of 1-2mm, thickness are 0.2-0.8mm, and moisture content is not higher than 9%.
7. manufacture method as claimed in claim 5, it is characterised in that the step（1）In, crop branch fiber with it is inorganic
The mass ratio of adhesive is（20-60）：（40-80）.
8. manufacture method as claimed in claim 5, it is characterised in that the step（2）In, hot pressing temperature is 130-180 DEG C,
Hot pressing pressure is 4.0-5.0MPa, and hot pressing time is 40-60s/mm；The time of natural curing is 8-10 days, and dry temperature is
85-90 DEG C, the dry time is 8-10h.
9. manufacture method as claimed in claim 5, it is characterised in that the step（3）In, the resin added of E0 urea-formaldehyde glues is
80-90g/m2。
10. manufacture method as claimed in claim 5, it is characterised in that the step（5）In, the time of precompressed is 25-
30min；Hot-forming temperature is 120-130 DEG C, and hot pressing pressure is 1.0-1.3MPa, and hot pressing time is 2-8min.
Priority Applications (1)
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| CN111452175A (en) * | 2020-04-14 | 2020-07-28 | 安徽精正家具制造有限公司 | Pressing equipment and process for office furniture |
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