CN101066603A - Process of making directional bamboo structure board - Google Patents
Process of making directional bamboo structure board Download PDFInfo
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- CN101066603A CN101066603A CN 200610114384 CN200610114384A CN101066603A CN 101066603 A CN101066603 A CN 101066603A CN 200610114384 CN200610114384 CN 200610114384 CN 200610114384 A CN200610114384 A CN 200610114384A CN 101066603 A CN101066603 A CN 101066603A
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Abstract
The process of making directional bamboo structure board includes the following steps: 1. cutting bamboo into sections, splitting each section into 3-10 parts based on the size, and forming arced trapezoidal bamboo blank of 20-60 mm long chord; 2. slicing or cutting the arced trapezoidal bamboo blank into radial bamboo sheet of 50-500 mm length, 5-20 mm width and 0.5-2.0 mm thickness; 3. drying the bamboo sheet to water content of 2-5 % and gluing; 4. directionally spreading to form plate blank with alternate longitudinal layers and transverse layers; 5. curing in a hot press; 6. cutting into directional bamboo board in required sizes. The present invention has the advantages of excellent physical and mechanical performance, capacity of replacing solid wood board to save timber resource.
Description
Technical field
The present invention relates to the manufacture method of a kind of manufacture method of wood-based plate, particularly a kind of directional bamboo structure board.
Background technology
Having now both at home and abroad at present utilizes the composite board of string production to comprise particieboard, MDF/HDF (medium density fibre board (MDF)/high density fiberboard), wooden OSB (directional structure board) and other flakeboards.Existing wooden OSB (Oriented Strand Board, oriented wood chipboard) be to utilize the crisscross a kind of wood-based plate of mating formation of banded wood chip, its physical and mechanical property surpasses ordinary particle board and MDF (medium density fibre board (MDF)), can substitute multi-plywood on a lot of purposes, be raw material but glued board needs excellent log.At present, wooden OSB is very popular the America and Europe, is mainly used in building, decoration and car and boat manufacturing industry etc.But it is raw material that wooden OSB needs excellent timber.
But up to the present,, also do not utilize bamboo wood to produce the precedent of OSB (be BOSB, Bamboo Oriented StrandBoard claims directional bamboo structure board again) both at home and abroad because bamboo wood has special microtextures such as hollow, tapering, surf green, ring, tabasheer.
Substitute timber production BOSB if can solve bamboo wood technically, and bamboo wood is efficiently utilized, it is considerable making the BOSB prospect.Because:
(1) to need excellent timber be raw material for wooden OSB, and BOSB only to need general mao bamboon be raw material, even utilize remaining inferior, little, the tip bamboo woods of production line such as bamboo floor, summer sleeping bamboo mat.
(2) different to the demand of raw material based on OSB with BOSB, utilize bamboo matter resource Billy more to have superiority with timber resources.
Bamboo belongs to this Bambusoideae of standing grain plant, mainly be distributed in the torrid zone and subtropical zone, temperate zone and refrigerant latitudes distribute less, bamboo plant is the important component part of the forest reserves, in these years global area of woods sharply reduces, and bamboo plant has good economy, ecology and social benefit concurrently with its unique biological, ecological characteristics, China's bamboo grove area is with annual 3% speed increase, and bamboo plant is considered to 21 century and is hopeful one of plant with potentiality most.China is one of the abundantest country of bamboo resource in the world, have 37 belong to 500 surplus kind, be distributed throughout the country, wherein: Hunan, Fujian, Zhejiang, Jiangxi, Anhui etc. are the main producing region.
Goal of the invention
The manufacture method that the purpose of this invention is to provide a kind of directional bamboo structure board (BOSB), this method manufacturing process is reasonable, makes full use of bamboo wood, and properties of product are better than the wood oriented structure plate.The alternative plank of this directional bamboo structure board or other artifical board materials.
For achieving the above object, the present invention is by the following technical solutions: the manufacture method of this directional bamboo structure board comprises following operation: (1) is with the mao bamboon segment, the bamboo section is become 3～10 five equilibriums by the splitting that varies in size of diameter, form the trapezoidal bamboo base of circular arc, the natural width of bamboo base is calculated as 20～60mm with the arc chord length; (2) the trapezoidal bamboo base of circular arc is sent into bamboo wood chipper or wood chipping equipment, slicing or cut direction for along the bamboo wood circular arc radially or substantially radially, cut into specification and be long 50～500mm, wide 5～20mm (or natural wall thickness of bamboo wood), thick 0.5～2.0mm bamboo chip; (3) bamboo chip is dried to absolute drift 2%～5% after, carry out top sizing; (4) orienting spreading, the form that adopts longitudinal layer and transverse layers layering to mat formation is grouped together, and forms slab; (5) slab is put into hot press, pressurized, heated makes bamboo fibre reach the softening and adhesive solidification of glassy state temperature, and slab forms hair plates sheet material; (6) be processed into stock board.
Advantage of the present invention is: the results showed that the physical and mechanical property of BOSB is better than OSB.Artificial boards such as alternative solid wood board, particieboard, MDF/HDF, wooden OSB, the utilization rate of raising bamboo timber resource is saved forest tree resource.
Description of drawings
Fig. 1: process flow diagram of the present invention
Fig. 2: mao bamboon structure and section orientation schematic diagram
Fig. 3: the schematic diagram of cutting into slices among Fig. 2
Fig. 4: the schematic diagram of mating formation
The specific embodiment
Among Fig. 1,5 is the mao bamboon raw material, and 6 are the segment operation, and 7 are broken basket weaver's preface, and 8 are the flaking or the operation of chipping, and 9 are the applying glue operation, and 10 for mating formation operation, and 11 is hot pressing process, and 12 are the sawing molding procedure.
Among Fig. 2, Fig. 3, R represents bamboo wood radially, and 4 represent the position of radially slicing, and 1 is that ring, 2 is tabasheer, and 3 is surf green.Among Fig. 4,13 is longitudinal layer, and 14 is transverse layers, and 15 is bamboo chip, and 16 is binding agent.
Below be description of the process:
(1), gets the raw materials ready
Material papering section comprises segment, broken 2 operations of bamboo.At first with the mao bamboon segment, the segment length is generally 2000～3000mm.With the broken bamboo machine of special use the bamboo section is become 3～8 five equilibriums by the splitting that varies in size of diameter, form the trapezoidal bamboo base of circular arc of specification basically identical, the natural width of bamboo base (calculating with the arc chord length) is 20～60mm;
(2) chipper or chip
The trapezoidal bamboo base of circular arc is sent into bamboo wood chipper or wood chipping equipment, cut into the bamboo chip of certain specification.Cut direction for along the bamboo wood circular arc radially or substantially radially.The bamboo chip specification of making the BOSB material is:
Length: 50～500mm
Width: 5～20mm (or natural wall thickness of bamboo wood)
Thickness: 0.5～2.0mm
(4) drying
In order to reach rapid draing and to reduce the effect of bamboo chip breakage rate as far as possible, the drum-type chip dryer that generally adopts wood-based plate to use, it is 2%～5% that bamboo chip is dried to absolute drift;
(5) applying glue
In order to reach all even effect that reduces the bamboo chip breakage rate of applying glue as far as possible, glue mixer adopts drum-type atomizing glue mixer, after adhesive is atomized by high pressure or compressed air, evenly is sprayed at the bamboo chip surface.
Different according to glue kind and finished product sheet material purposes, resin added is:
Adhesive solid amount: over dry bamboo chip amount (weight ratio)=(3～20): 100.
The kind of used adhesive has:
Isocyanate glue (MDI), phenolic resin glue (PF), urine aldehydes resin glue (UF) etc.
(6) orienting spreading
The employing layering spreading machine of mating formation is in length and breadth mated formation, and this spreading machine can be realized orienting spreading in length and breadth automatically.The rule of mating formation is as follows:
1) the necessary odd number of the plate blank paving number of plies is in case because the later internal stress imbalance of bamboo chip drying shrinkage causes bow warping;
2) number of plies of mating formation is generally 3～15 layers;
3) with the bamboo chip in one deck along the identical length direction assembly of mating formation; (can not accomplish 100% identical length direction in the actual manufacture process, but rate should keep more than 70% in the same way)
4) the bamboo chip direction between adjacent 2 layers is the i.e. 90 ° of angles of quadrature.Can not accomplish in the actual manufacture process that 100% bamboo chip all is 90 ° of angles, allow angular deviation ± 15 °.
(7) hot-forming
Slab is sent into hot press heat, pressurize, after treating to solidify fully, form BOSB hair plates material.
Hot press can adopt following 3 kinds:
1) continuous hot press.Along with slab enter press continuously, constantly the last lower hot pressing board of continuous rolling is finished hot-forming process continuously to the slab pressurized, heated;
2) batch (-type) single-layer hot press.Press has only 1 layer to open shelves, and last lower hot pressing board is a rigidity heat conduction carrier, by loader slab is sent into hot press, and the pressing plate closure is finished hot-forming process in a pressing cycle then.Pressing plate is opened then, by unloader the moulding hair plates is taken out;
3) batch (-type) multi-daylight press.Press has multilayer to open shelves, is generally 3～20 layers, and its hot pressing principle is with the batch (-type) single-layer hot press.Just production efficiency improves several times, but press, loader, the unloader cost is also corresponding increases.
Different according to glue kind and finished product sheet material purposes, heat pressing process and parameter can adjust accordingly.Generally as follows:
1) heat pressing process generally be divided into boost, pressurize, 3 stages of off-load.Boost phase be for fast with the slab compacting, improve density; Packing stage is for the heat transferred slab with pressing plate, quickens the glue that is solidified to form of adhesive and follows closely, and makes bamboo fibre further softening gummed under the glassy state temperature simultaneously; The off-load stage is in order slowly to discharge the internal stress in the slab, to avoid the hair plates layering.
2) packing stage press unit pressure is 1.5～8Mpa.
3) boost, pressurize, the basis of time working condition in 3 stages of off-load and become, wherein the dwell time increases with the increase of slab thickness.For the BOSB sheet material of making 8～40mm, the general dwell time is 20～90s/ (a mm thickness of slab).
4) the heating platen temperature is generally 140～220 ℃.
(8) sawing
Hair plates after pressing is amputated burr, neat sheet material around forming.According to the purposes difference, can be divided into polylith in case of necessity.
Present embodiment is a laboratory test real result situation.
(1) bamboo wood
Adopt the Hunan to produce 2 degree (growth in promptly 4 years) bamboo.
(2) technological means
Adopt artificial segment, broken bamboo well-thought-out plan base; Form bamboo chip by artificial carpenter's flaking, the segment of chopper fixed length; Manually applying glue; Testing press is hot-forming.
(3) bamboo chip specification
Length: 110～120mm
Width: radially wide naturally (9～15mm)
Thickness: 0.8mm
(4) adhesive
Glue kind: phenolic resin (PF) glue
Solids content: 40%
Viscosity: 14s (being coated with 4 glasss, 20 ℃)
(5) hot compression parameters
Hot pressing temperature: 140～180 ℃
Hot pressing pressure: 2.0～2.8Mpa
Hot pressing time: 50～90s/mm is thick
(6) model breadth
450×450×12mm
(7) performance comparison
| MOR (Mpa) | Elastic modelling quantity (Mpa) | Internal bond strength (Mpa) | Burst size of methanal Mg/100g plate | |||
| Parallel | Vertically | Parallel | Vertically | |||
| Sample parameters | 30 | 18 | 3900 | 1500 | 0.42 | 5.4 |
| The GB parameter | 22-30 | 10-15 | 3500 | 1400 | 0.32 | 8 |
Claims (9)
1. manufacture method that directional bamboo structure board is BOSB is characterized in that:
(1) with the mao bamboon segment, the bamboo section is become 3～8 five equilibriums by the splitting that varies in size of diameter, form the trapezoidal bamboo base of circular arc, the natural width of bamboo base is calculated as 20～60mm with the arc chord length;
(2) the trapezoidal bamboo base of circular arc is sent into bamboo wood chipper or wood chipping equipment, slicing or cut direction for along the bamboo wood circular arc radially or substantially radially, cut into the bamboo chip of certain specification;
(3) bamboo chip is dried to absolute drift 2%～5% after, carry out top sizing;
(4) orienting spreading, the form that adopts longitudinal layer and transverse layers layering to mat formation is grouped together, and forms slab;
(5) slab is put into hot press, pressurized, heated makes bamboo fibre reach the softening and adhesive solidification of glassy state temperature, and slab forms hair plates sheet material;
(6) be processed into stock board.
2. directional bamboo structure board manufacture method according to claim 1 is characterized in that: described bamboo chip specification is:
(1) length: 50～500mm
The natural wall thickness of (2) width: 5～20mm or bamboo wood
(3) thickness: 0.5～2.0mm.
3. directional bamboo structure board manufacture method according to claim 1 is characterized in that: described orienting spreading is:
(1) the plate blank paving number of plies is an odd number;
(2) number of plies of mating formation is generally 3～15 layers;
(3) with the bamboo chip in one deck along the identical length direction assembly of mating formation;
(4) the bamboo chip direction between adjacent 2 layers is a quadrature, promptly is 90 ° of angles.
4. according to claim 1 or 3 described directional bamboo structure board manufacture methods, it is characterized in that: its heat pressing process condition is:
(1) hot press adopts continuous hot press or batch (-type) single-layer hot press or batch (-type) multi-daylight press;
(2) heat pressing process be divided into boost, pressurize, 3 stages of off-load.
5. according to claim 1 or 3 described directional bamboo structure board manufacture methods, it is characterized in that its hot compression parameters is:
(1) packing stage press unit pressure is 1.5～8Mpa;
(2) dwell time increases with the increase of slab thickness;
(3) the heating platen temperature is generally 140～220 ℃.
6, directional bamboo structure board manufacture method according to claim 4 is characterized in that its hot compression parameters is:
(1) packing stage press unit pressure is 1.5～8Mpa;
(2) dwell time increases with the increase of slab thickness.
(3) the heating platen temperature is generally 140～220 ℃.
7, directional bamboo structure board manufacture method according to claim 5 is characterized in that: for the directional bamboo structure board sheet material of making 8～40mm, the general dwell time is 20～90s/ (a mm thickness of slab).
8, directional bamboo structure board manufacture method according to claim 6 is characterized in that: for the sheet material directional bamboo structure board of making 8～40mm, the general dwell time is 20～90s/ (a mm thickness of slab).
9. directional bamboo structure board manufacture method according to claim 1 is characterized in that its adhesive is:
(1) kind of adhesive is other adhesive of isocyanate glue or phenolic resin glue or urea-formaldehyde resin adhesive or wood-based plate industry etc.
(2) resin added is an adhesive solid weight: over dry bamboo chip weight=(3～20): 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610114384 CN101066603A (en) | 2006-11-08 | 2006-11-08 | Process of making directional bamboo structure board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610114384 CN101066603A (en) | 2006-11-08 | 2006-11-08 | Process of making directional bamboo structure board |
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| CN101066603A true CN101066603A (en) | 2007-11-07 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101885202A (en) * | 2009-05-13 | 2010-11-17 | 迪芬巴赫有限两合公司 | Produce the application of method, high density material plate and the plate of material of high density material plate with wooden raw material or the xyloid raw material of class |
| CN102310450A (en) * | 2010-07-06 | 2012-01-11 | 北新建材(集团)有限公司 | Bamboo oriented shaving board and manufacturing method thereof |
| CN102896683A (en) * | 2012-11-06 | 2013-01-30 | 江苏快乐木业集团有限公司 | Directed wood shaving board and preparation method thereof |
| CN103481349A (en) * | 2013-10-12 | 2014-01-01 | 杨东旭 | Middle-high density plywood with added bamboo charcoal and method for adding bamboo charcoal thereof |
| EP2797723A1 (en) * | 2011-12-28 | 2014-11-05 | Cobratex | Method and device for manufacturing a band consisting of wood fibers, in particular bamboo fibers, and wood fiber band |
| CN104859027A (en) * | 2015-06-24 | 2015-08-26 | 浙江安吉龙邦家具有限公司 | Process for manufacturing boards through recycling of bamboo sawdust |
| CN105239516A (en) * | 2015-08-28 | 2016-01-13 | 北京市首发天人生态景观有限公司 | Environmental-friendly wooden anti-glare plate and manufacturing method thereof |
| CN110076857A (en) * | 2019-05-29 | 2019-08-02 | 国际竹藤中心 | Structure of bamboo profile and preparation method thereof |
| CN112192691A (en) * | 2020-09-29 | 2021-01-08 | 山东俏家装饰新材料有限公司 | LSB plate production process |
| CN112659294A (en) * | 2020-12-28 | 2021-04-16 | 千年舟新材科技集团股份有限公司 | Automatic pretreatment method of bamboo shaving board |
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2006
- 2006-11-08 CN CN 200610114384 patent/CN101066603A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101885202B (en) * | 2009-05-13 | 2015-09-09 | 迪芬巴赫机械工程有限公司 | Produce the method for high density material plate, high density material plate and application thereof |
| CN101885202A (en) * | 2009-05-13 | 2010-11-17 | 迪芬巴赫有限两合公司 | Produce the application of method, high density material plate and the plate of material of high density material plate with wooden raw material or the xyloid raw material of class |
| US8663769B2 (en) | 2010-07-06 | 2014-03-04 | Beijing New Building Material (Group) Co., Ltd | Bamboo oriented strand board and method for manufacturing the same |
| CN102310450A (en) * | 2010-07-06 | 2012-01-11 | 北新建材(集团)有限公司 | Bamboo oriented shaving board and manufacturing method thereof |
| WO2012003738A1 (en) * | 2010-07-06 | 2012-01-12 | 北新建材集团有限公司 | Bamboo oriented strand board and method for manufacturing the same |
| EP2797723A1 (en) * | 2011-12-28 | 2014-11-05 | Cobratex | Method and device for manufacturing a band consisting of wood fibers, in particular bamboo fibers, and wood fiber band |
| CN102896683A (en) * | 2012-11-06 | 2013-01-30 | 江苏快乐木业集团有限公司 | Directed wood shaving board and preparation method thereof |
| CN103481349A (en) * | 2013-10-12 | 2014-01-01 | 杨东旭 | Middle-high density plywood with added bamboo charcoal and method for adding bamboo charcoal thereof |
| CN103481349B (en) * | 2013-10-12 | 2015-08-19 | 杨东旭 | The method of bamboo charcoal is added in a kind of high density plate |
| CN104859027A (en) * | 2015-06-24 | 2015-08-26 | 浙江安吉龙邦家具有限公司 | Process for manufacturing boards through recycling of bamboo sawdust |
| CN105239516A (en) * | 2015-08-28 | 2016-01-13 | 北京市首发天人生态景观有限公司 | Environmental-friendly wooden anti-glare plate and manufacturing method thereof |
| CN110076857A (en) * | 2019-05-29 | 2019-08-02 | 国际竹藤中心 | Structure of bamboo profile and preparation method thereof |
| CN112192691A (en) * | 2020-09-29 | 2021-01-08 | 山东俏家装饰新材料有限公司 | LSB plate production process |
| CN112659294A (en) * | 2020-12-28 | 2021-04-16 | 千年舟新材科技集团股份有限公司 | Automatic pretreatment method of bamboo shaving board |
| CN115008570A (en) * | 2022-06-09 | 2022-09-06 | 洪雅竹元科技有限公司 | Bamboo skin longitudinal and transverse plate and manufacturing process and application thereof |
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Open date: 20071107 |