CN101927518A - Method for selecting and pressing raw materials of sunflower stalk composite board - Google Patents
Method for selecting and pressing raw materials of sunflower stalk composite board Download PDFInfo
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- CN101927518A CN101927518A CN2009100121397A CN200910012139A CN101927518A CN 101927518 A CN101927518 A CN 101927518A CN 2009100121397 A CN2009100121397 A CN 2009100121397A CN 200910012139 A CN200910012139 A CN 200910012139A CN 101927518 A CN101927518 A CN 101927518A
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Abstract
The invention discloses a method for selecting and pressing the raw materials of a sunflower stalk composite board, i.e. a method for selecting and pressing crop straws of sunflower stalk, sawdust, rice husk, reed, straw, wheat straw, cotton stalk and hemp stalk to replace wood to produce artificial boards, belonging to the non-wood artificial board production industry. The method can effectively improve the board strength by using sunflower stalks as reinforcing ribs and save wood by selecting crushed materials of the sawdust, the rice husk, the reed, the cotton stalk, the hemp stalk and a part of sunflower stalk as base stock, 0.2-0.8mm of a wood face skin and 70-220g of kraft paper or plasterboard paper are selected as board veneers, and meanwhile, the method adopts the one-step hot-forming technology for veneers and blanks, so as to shorten the process flow, and the specific steps are described in detail in the specification.
Description
Technical field:
Raw materials of sunflower stalk composite board of the present invention is selected for use and drawing method, relate to non-timber agricultural crop straw artificial board production field, promptly be that to select Sunflower Stalk for use be reinforcement, select saw foam, rice husk for use and select for use reed, straw, straw, cotton stalk, hemp stalk and a part of Sunflower Stalk to make base-material after crushed, replacing wood is produced a kind of raw material selection and the drawing method of artificial board.
Background technology:
In recent years, the technology of utilizing stalk to make sheet material for raw material is constantly released, but as if all there are many defectives: composite rice straw board and manufacturing process thereof, (CN1294094) it is with straw, husk, stalks etc. are wherein a kind of to be major ingredient, be equipped with light burnt powder, modifying agent, through stirring, injection molding, add glass fibre, the oven dry demoulding, operations such as curing are made sheet material, though the sheet material of this explained hereafter can the instead of wood plate material, because of a large amount of use industrial chemicals and glass fibres cause its product having some problems aspect the environmental protection, secondly product spontaneous curing moulding, timber intensity is limited.Cement gypsum reed fiber composite board and production method thereof (CN1154896) are major ingredient with the reed fiber, are cementing agent with the cement gypsum, and it is heavier that the sclerosis back forms sheet material its product self, and intensity is limited.Strong board (CN12621717) mixes and stirred 10-40 minute earlier magnesia, magnesium silicate, is woven into the net sheet with axis such as bamboo, reed, cornstalk, palm leaves, do the middle level skeleton with glass fabric, flatten the natural moulding in back, its product strength is not high, and yet not environmental protection of product.
Summary of the invention:
The present invention be directed to many defectives of the production Technology prescription existence of the said goods, a kind of raw materials of sunflower stalk composite board of design is selected for use and drawing method, at first Sunflower Stalk is cut into the long stalk section of 1300mm from root to the tip, then on special equipment to cuing open, remove crust, the core of emedullating, be rolled into sheet through twin rollers then, selected reed, straw, straw, cotton stalk, hemp stalk and part Sunflower Stalk are pulverized with pulverizer, the saw foam, rice husk need not be pulverized, can directly use, through cutting off to cuing open, remove crust, the core of emedullating, the stalk sheet that is rolled into sheet carries out assembly and mats formation after glue spreader or glue sprayer applying glue, to send into applying glue stirring in the mixer to each selected particle before mating formation, surface material can be selected the thick wooden musculus cutaneus of 0.2-0.8mm for use and select for use 70 grams-220 gram brown paper or gypsum paperboard to do panel overlay, adopt hot press forming technology of veneer and blank simultaneously, reduce technological process, reduce production costs, each selected surface material will carry out brush coating or roller glue through after the cutting, also can spray glue, enter the assembly operation of mating formation afterwards, at first the topping laying behind the gluing on template, then the stalk sheet through applying glue is arranged according to cocurrent and parallel, end to end, crisscross, the assembly method of Pu Sheing is mated formation repeatedly, promptly be earlier being laid on the template after the surface layer cutting applying glue, then the particle that stirs through applying glue is laid on the surface layer, afterwards the stalk sheet after applying glue being pressed parallel longitudinal arranges, end to end being laid on the particle, and then particle is laid on the stalk sheet, follow the stalk sheet according to laterally being arranged in parallel, be laid on the particle, crisscross like this, lay repeatedly, can lay several layers according to the thickness requirement of institute's pressed sheet, 5-20mm is thick for every layer of laying of particle, the glue kind is selected urea-formaldehyde resin adhesive or phenolic resin glue for use, the stalk sheet is wanted crisscross laying, to improve the intensity of sheet material, after treating that last one deck blank laying finishes, lay one deck surface material in the above, send into press afterwards, through the heating pressurization, curing molding, the depanning cooling is cut each operation of four limits and is produced the sunflower stalk composite board material.
Raw materials of sunflower stalk composite board is selected for use and drawing method, be to select for use by agricultural crop straw, surfacing material selection, the raw material dehydration, Sunflower Stalk is cut off cuing open, remove crust, the core of emedullating, and carrying out applying glue after being rolled into sheet, reed, straw, straw, cotton stalk, hemp stalk and part Sunflower Stalk are pulverized (saw foam, rice husk need not be pulverized direct use) pulverizing material and are carried out applying glue stirring, topping laying, particle is laid, after mating formation, the whole assembly that the stalk sheet is laid sends into press, through heating pressurization, curing molding, each operation of cooling side cut is formed, and it is characterized in that:
One, Sunflower Stalk, saw foam, rice husk, reed, straw, straw, cotton stalk, hemp stalk and surface material all will carry out processed (air dry or artificial drying) and make water content＜5%.
Two, Sunflower Stalk film-making, it is long at first Sunflower Stalk to be cut into 1300mm from root to the tip, then on special equipment to cuing open, make one divide two halves, remove crust afterwards, the core of emedullating, and it is rolled into sheet.
Three, crushed stalk, according to the quality requirement of want pressed sheet, the stalk of at every turn selecting for use is pulverized, concrete specification requirement is powder of straw to be broken into the 10-40 order particle that sieves get final product, saws foam and rice husk and need not pulverize and can directly use.
Four, the applying glue of blank, at first through cut-out to cut open, go crust, stalk sheet that the core of emedullating is rolled into sheet is on the glue spreader or applying glue on the glue sprayer, then the selected crushed straw aggregate of each compacting being poured in the mixer into applying glue stirred 5-10 minute, the glue kind is selected urea-formaldehyde resin adhesive for use, resin added is the 8%-14% of blank net weight, as to select phenolic resin glue, resin added for use be the 6%-10% of blank net weight.
Five, the cutting of surface material, applying glue, laying: at first the each surface material that will select for use is carried out cutting, be about to its be cut into 2600mm * 1300mm long * wide, carry out roller glue or spray glue then, afterwards it is laid on the template, changes next procedure over to after treating to repave one deck surface layer above that after whole blanks layings finish.
Six, the assembly of stalk sheet and particle is mated formation, at first surface material is laid on the template, then the particle that stirs through applying glue is laid on the surface layer, afterwards the stalk sheet through gluing is arranged according to cocurrent and parallel, end to end, crisscross, the assembly method of Pu Sheing repeatedly, first parallel longitudinal is arranged, end to end the stalk sheet is laid on the particle, and then lay one deck particle, and the thickness of every layer of particle laying is 5-20mm, the stalk sheet after the applying glue laterally being arranged in parallel subsequently is laid on the particle again, it is one deck particle, one deck stalk sheet, but the stalk sheet is wanted crisscross laying, to improve the intensity of sheet material, particle and stalk sheet can interlock repeatedly and lay the 3-21 layer, can suppress 2440mm * 1220mm long * wide, thickness is the sheet material of 6-30mm, treats that last one deck blank is laid to change press over to behind the layer overlay surface material above that after finishing.
Seven, heating pressurization, common artificial plate pressing machine is adopted in pressurization, each compacting 6-24 sheet material, add the thermal recovery heat-conducting oil furnace or adopt plain cylindrical furnace, temperature 160-210 degree, pressure 1000-1600 ton, hot pressing time 8-20 minute, depanning is cooled to normal temperature and cuts four limits behind the sheet material curing molding, promptly produces qualified sunflower stalk composite board material.
Good effect of the present invention is to utilize Sunflower Stalk to do the sheet material reinforcement, improve timber intensity, select saw foam, rice husk for use and select for use reed, straw, straw, cotton stalk, hemp stalk and branch's Sunflower Stalk crushed material to do sheet material base-material production artificial board, turn waste into wealth, select the thick wooden musculus cutaneus of 0.2-0.8mm for use or select 70-220 gram brown paper or gypsum paperboard for use, do panel overlay, adopt hot press forming technology of veneer and blank simultaneously, reduce technological process, reduce production costs, improve the competitiveness of product in market.
Description of drawings
Fig. 1 process flow diagram of the present invention
To process of the present invention, further describe as follows in conjunction with the accompanying drawings:
Embodiment 1
At first will be to Sunflower Stalk, the saw foam carries out processed, (air dry or artificial drying), make water content＜5%, Sunflower Stalk cut into the long stalk section of 1300mm from root to the tip, then on special equipment to cuing open, make one divide two halves, remove crust, the core of emedullating, and be rolled into sheet.With surface material, be that the thick face side skin of 0.5mm carries out brush coating or spray glue after being cut into 2600mm * 1300mm, also can be at roller glue machine top roll glue, be laid on the template then, after sieving, foam pours applying glue in the mixer sawing into, stirred 5-10 minute, sizing material uses urea-formaldehyde resin adhesive, solid content 60%, resin added is the 8%-14% of blank net weight, enter the whole assembly operation of mating formation then, assembly is mated formation and is adopted one deck particle, one deck stalk sheet, the staggered laying, the laying of stalk sheet adopts cocurrent and parallel to arrange, end to end, crisscross, the assembly method of Pu Sheing repeatedly, promptly earlier the thick face side skin of 0.5mm is laid on the template, lay the saw foam after applying glue is stirred then, the thickness of laying is decided according to institute's pressing plate material thickness, it is thick to lay 5-20mm, at first be cut into 2600mm * 1300 long * wide surface layer is through being laid on after the applying glue on the template, saw foam after then applying glue being stirred is laid on the surface layer, the thickness of laying is 6mm, afterwards the stalk sheet after applying glue being pressed parallel longitudinal arranges, end to end being laid on the particle, repave the saw foam after second layer applying glue is stirred then, the thickness of laying is that 6mm is thick equally, lay second layer stalk sheet subsequently, the laying that will laterally be arranged in parallel of second layer stalk sheet re-lays the 3rd layer of saw foam afterwards, then lays the 4th layer of vertical stalk sheet, lay the layer 5 particle then, lay the horizontal stalk sheet of layer 6 afterwards, i.e. one deck particle one deck stalk sheet repaves the thick face side skin of last layer 0.5mm after can laying 8 layers repeatedly in the above, change press afterwards over to, each compacting 6 sheet materials, 1000 tons of pressure, temperature 180 degree, hot pressing time 10 minutes, can suppress 2440 * 1220 * 16mm length * wide * thick sunflower stalk composite board material, be cooled to cut four limits behind the normal temperature after going out machine, promptly produce and finish.
Embodiment 2
Raw material are dried or are dried, make water content＜5%, to guarantee board quality, at first a part of Sunflower Stalk is cut into the long stalk section of 1300mm from root to the tip, warp is to cuing open, remove crust, the core of emedullating, be rolled into sheet, a part of Sunflower Stalk is ground into 10-40 order sieving materials with pulverizer, pouring in the mixer applying glue afterwards into stirred 5-10 minute, sizing material uses urea-formaldehyde resin adhesive: solid content 60%, resin added is 8%-14%, at first being laid on the template through the thick face side skin of the 0.3mm of cutting applying glue, then the Sunflower Stalk particle that stirs through applying glue is laid on the surface layer, afterwards the stalk sheet after applying glue is arranged according to parallel longitudinal, end to end being laid on the particle, and then laying second layer particle, then laterally be arranged in parallel and lay second layer stalk sheet, subsequently the 3rd layer of particle is laid on the second layer stalk sheet, i.e. one deck particle one deck stalk sheet, the laying of stalk sheet is crisscross, lay repeatedly to improve the intensity of sheet material, the thick of every layer of laying of particle is 5mm, wants one deck particle one deck stalk sheet between stalk sheet and the particle, can lay 10 layers repeatedly, repave one deck surface layer afterwards in the above, change press then over to, can suppress 2440mm * 1220mm * 20mm length * wide * thick sheet material, 12 of each pressures, 1200 tons of pressure, temperature 180 degree, hot pressing time 10 minutes, other process conditions can be produced qualified sheet material equally with embodiment 1.
Embodiment 3
At first 120 gram brown paper after the cutting applying glue are laid on the template, then reed, straw, straw, cotton stalk, hemp stalk is wherein a kind of to be ground into 10-40 order sieving materials with pulverizer, pouring in the mixer applying glue afterwards into stirred 5-10 minute, sizing material uses urea-formaldehyde resin adhesive, reinforcement is the stalk sheet after the applying glue, the first step is earlier being cut into 2600mm * 1300mm, long * wide 120 gram brown paper, be laid on the template behind the gluing, then the particle after stirring is laid on the surface layer, parallel longitudinal is arranged afterwards, end to end the stalk sheet is laid on the particle, lay second layer particle then, the laying depth of every layer of particle is 10mm, then lay the horizontal stalk sheet of the second layer, it is one deck particle one deck stalk sheet, and the horizontal stalk sheet of the vertical stalk sheet of one deck one deck, can interlock repeatedly and lay 5 layers, spread surface layer then and change press over to, suppress 12 laminate materials at every turn, 1200 tons of pressure, temperature 180 degree, hot pressing time 8 minutes can be suppressed 2440 * 1220 * 14mm length * wide * thick sheet material, other process conditions can be produced qualified sheet material equally with embodiment 1.
Embodiment 4
At first the gram of 90 behind cutting gluing gypsum paperboard is laid on the template, afterwards rice husk being sent in the mixer applying glue stirred 5-10 minute, enter the assembly operation of mating formation then, earlier the rice husk that stirs through applying glue is laid on the surface layer, first then parallel longitudinal is arranged, end to end handle is laid on the rice husk through the stalk sheet after the applying glue, lay the rice husk that second layer applying glue is stirred afterwards, lay the 3rd layer of stalk sheet that laterally is arranged in parallel then, like this one deck stalk sheet one deck particle, can interlock repeatedly and lay 8 layers, spread 90 gram gypsum paperboards afterwards, change press over to, suppress 10 laminate materials at every turn, 1000 tons of pressure, temperature 160 degree, hot pressing time 8 minutes can suppress 2440 * 1220 * 14mm length * wide * thick sheet material, other process conditions can be produced qualified sheet material equally with embodiment 1.
Embodiment 5
At first 120 gram brown paper are laid on the template behind the cutting gluing, then the saw foam that stirs through applying glue is laid on the surface layer, lay vertical stalk sheet subsequently, lay the saw foam that second layer applying glue is stirred then, then lay horizontal stalk sheet, it is one deck saw foam one deck stalk sheet, the thickness 8mm of every layer of laying of saw foam, the stalk sheet is wanted crisscross laying, to improve the intensity of sheet material, can interlock repeatedly and lay 12 layers, layer re-lays brown paper behind one deck 120 gram gluings thereon then, changes press then over to, can suppress 6 sheet materials at every turn, 1000 tons of pressure, temperature 180 degree, hot pressing time 8 minutes can be suppressed 2440mm * 1220mm * 18mm length * wide * thick sunflower stalk composite board material, other process conditions can be produced qualified sheet material equally with embodiment 1.
Embodiment 6
At first the thick face side skin of the 0.4mm of gluing is laid on the template, then straw is pulverized material through being laid on after the applying glue on the surface layer, laying parallel longitudinal afterwards arranges, stalk sheet after the end to end applying glue, then lay second layer particle, the thick of every layer of particle laying is 10mm, lay laterally the be arranged in parallel stalk sheet of applying glue of the second layer then, can interlock repeatedly and lay 12 layers, treat to re-lay the thick face side skin of one deck 0.4mm in the above after whole blanks layings finish, change press then over to, each compacting 10 sheet materials, can suppress 2440 * 1220 * 20mm length * wide * thick sheet material, other process conditions can be produced qualified sheet material equally with embodiment 1.
Claims (2)
1. raw materials of sunflower stalk composite board is selected for use and drawing method, is by selecting for use Sunflower Stalk to cut into behind the 1300mm on special equipment cuing open from root to the tip, removes crust, the core of emedullating, is rolled into sheet and does the sheet material reinforcement.Select for use saw foam, rice husk, reed, straw, straw, cotton stalk, hemp stalk and part Sunflower Stalk to make the sheet material base-material after crushed, select the thick face side skin of 0.2-0.8mm for use and select for use 70-220 gram brown paper or gypsum paperboard to do panel overlay, adopt hot press forming technology of veneer and blank simultaneously, simplify technological process, mat formation, heat each operation of pressurization through raw material dehydration, preliminary treatment, applying glue, assembly and form, it is characterized in that:
A, raw material all will carry out processed (air dry or artificial drying) makes water content＜5%.
B, pre-treatment of raw material, at first Sunflower Stalk is cut into 1300mm length from root to the tip, then on special equipment to cuing open, remove crust, the core of emedullating, be rolled into sheet afterwards, reed, straw, straw, cotton stalk, hemp stalk and part Sunflower Stalk are ground into 10-40 order sieving materials with pulverizer, saw foam and rice husk need not be pulverized and can directly use, surface material will carry out cutting earlier, be cut into 2600mm * 1300mm long * wide.
C, enter the applying glue operation, adhesive uses urea-formaldehyde resin adhesive, also can use phenolic resin glue, the urea-formaldehyde resin adhesive resin added is the 8%-14% of blank net weight, the phenolic resin glue resin added is the 6%-10% of blank net weight, the Sunflower Stalk sheet carries out applying glue with glue sprayer, and saw foam, rice husk and other powder of straw particle all stir applying glue with mixer, and surface material adopts glue spreader or glue sprayer to carry out applying glue.
D, enter the assembly operation of mating formation, at first the topping laying after the applying glue on template, then the saw foam after the process stirring applying glue, rice husk or other powder of straw particles are laid on the surface layer, the thickness of every layer of laying is 5-20mm, then lay the Sunflower Stalk sheet, the assembly method is that cocurrent and parallel is arranged, end to end, crisscross, lay repeatedly, promptly the vertical one deck of one deck is horizontal, to improve the intensity of sheet material, specific practice is at first the elder generation of the stalk sheet after applying glue parallel longitudinal to be arranged end to end being laid on the ground floor base-material, and then lay second layer base-material, lay second layer stalk sheet subsequently, the laying that will laterally be arranged in parallel of second layer stalk sheet, it is one deck base-material one deck stalk sheet, the stalk sheet to be laid in the vertical one deck of one deck horizontal, can interlock according to the thickness needs of producing sheet material and lay the 3-21 layer repeatedly, can suppress the thick 2440 * 1220mm length * wide sheet material of 6-30mm, blank is all laid the back that finishes and is repaved one deck surface layer topmost at it, changes press afterwards over to.
E, heating pressurization operation add thermal recovery heat-conducting oil furnace or plain cylindrical furnace, temperature 160-210 degree, and common artificial plate pressing machine is adopted in pressurization, suppresses the 6-24 sheet material, pressure 1000-1600 ton, hot pressing time 8-20 minute at every turn.
Go out machine after f, sheet material solidify and be cooled to normal temperature, specification is cut four limits on request then, promptly produces finished product material sheet material.
2. select for use and drawing method according to the described raw materials of sunflower stalk composite board of claim 1, it is characterized in that: select for use Sunflower Stalk to do the sheet material reinforcement, improve timber intensity, select the saw foam for use, rice husk and reed, straw, straw, cotton stalk, hemp stalk and part Sunflower Stalk are made the sheet material base-material after pulverizing, save timber, select the thick face side skin of 0.2-0.8mm for use and select for use 70-220 gram brown paper or gypsum paperboard to do panel overlay, adopt hot press forming technology of veneer and blank simultaneously, simplify technological process, adopt the staggered laying of base-material and stalk sheet and adopt stalk sheet cocurrent and parallel to arrange, end to end, crisscross, the assembly method of Pu Sheing can effectively improve timber intensity repeatedly, reduces cost of material and production cost simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100121397A CN101927518A (en) | 2009-06-18 | 2009-06-18 | Method for selecting and pressing raw materials of sunflower stalk composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100121397A CN101927518A (en) | 2009-06-18 | 2009-06-18 | Method for selecting and pressing raw materials of sunflower stalk composite board |
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| CN101927518A true CN101927518A (en) | 2010-12-29 |
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| CN2009100121397A Pending CN101927518A (en) | 2009-06-18 | 2009-06-18 | Method for selecting and pressing raw materials of sunflower stalk composite board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320071A (en) * | 2011-09-13 | 2012-01-18 | 刘金忠 | Method and equipment for pressing non-wood freight tray |
| CN103737695A (en) * | 2013-12-11 | 2014-04-23 | 彭万喜 | Method for manufacturing advanced wood fiber composite wood |
| US20160297096A1 (en) * | 2015-04-10 | 2016-10-13 | Mayfair Vermögensverwaltungs Se | Scattering head, process and panel |
| CN108656300A (en) * | 2018-04-11 | 2018-10-16 | 中国人民解放军62023部队 | A kind of Chinese Kenaf Core Buffer green ecological plank and preparation method thereof |
| CN111546457A (en) * | 2020-04-07 | 2020-08-18 | 江苏禾吉新材料科技有限公司 | Thick anti-cracking heat-insulation straw wallboard and preparation method thereof |
-
2009
- 2009-06-18 CN CN2009100121397A patent/CN101927518A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320071A (en) * | 2011-09-13 | 2012-01-18 | 刘金忠 | Method and equipment for pressing non-wood freight tray |
| CN103737695A (en) * | 2013-12-11 | 2014-04-23 | 彭万喜 | Method for manufacturing advanced wood fiber composite wood |
| CN103737695B (en) * | 2013-12-11 | 2016-03-23 | 彭万喜 | A kind of wood-fibred advanced composite material manufacture method |
| US20160297096A1 (en) * | 2015-04-10 | 2016-10-13 | Mayfair Vermögensverwaltungs Se | Scattering head, process and panel |
| CN106042137A (en) * | 2015-04-10 | 2016-10-26 | 梅菲尔资产管理股份公司 | Scattering head, method for producing panel and panel |
| CN106042137B (en) * | 2015-04-10 | 2021-01-01 | 梅菲尔资产管理股份公司 | Laying head, method for producing a slab and slab |
| CN108656300A (en) * | 2018-04-11 | 2018-10-16 | 中国人民解放军62023部队 | A kind of Chinese Kenaf Core Buffer green ecological plank and preparation method thereof |
| CN111546457A (en) * | 2020-04-07 | 2020-08-18 | 江苏禾吉新材料科技有限公司 | Thick anti-cracking heat-insulation straw wallboard and preparation method thereof |
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Application publication date: 20101229 |