CN104960066B - A kind of grass tree structural slab and its production technology - Google Patents
A kind of grass tree structural slab and its production technology Download PDFInfo
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- CN104960066B CN104960066B CN201510323980.3A CN201510323980A CN104960066B CN 104960066 B CN104960066 B CN 104960066B CN 201510323980 A CN201510323980 A CN 201510323980A CN 104960066 B CN104960066 B CN 104960066B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 241001532014 Xanthorrhoea Species 0.000 title claims abstract description 22
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 56
- 239000010902 straw Substances 0.000 claims abstract description 55
- 239000002023 wood Substances 0.000 claims abstract description 38
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000012792 core layer Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
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- 240000006394 Sorghum bicolor Species 0.000 claims abstract description 5
- 235000011684 Sorghum saccharatum Nutrition 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 8
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- 230000015572 biosynthetic process Effects 0.000 claims description 7
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- 238000001816 cooling Methods 0.000 claims description 5
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- 239000011347 resin Substances 0.000 claims description 5
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 4
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 4
- 244000020551 Helianthus annuus Species 0.000 claims description 4
- 235000003222 Helianthus annuus Nutrition 0.000 claims description 4
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 4
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- 244000098338 Triticum aestivum Species 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000011093 chipboard Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000008961 swelling Effects 0.000 abstract description 4
- 238000012271 agricultural production Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
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- 241000196324 Embryophyta Species 0.000 description 1
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention discloses a kind of using stalk and branch bavin as the grass tree structural slab and its production technology of raw material, take full advantage of the discarded object produced in agricultural production process, straw, straw, cornstalk, the agricultural crop straws such as sorghum stalk, and production and construction, the branch bavin wooden waste discarded during renovating is raw material, the novel artificial sheet material being made using brand-new production technology, stalk is turned waste into wealth with substituting traditional solid wood products, drastically increase the value of agricultural crop straw, simultaneously, the production cost of sheet material is significantly reduced again, with great economic benefit and social value.It is once hot-forming, existing oriented wood chipboard is efficiently solved because being superimposed gap between wood chip and wood chip, and the plate surface caused has uneven, it is impossible to the drawbacks of being directly used in production surface decorating plate problem.The density of fiber dash board layer and wood shavings core layer can reach 0.8g/cm respectively3With 0.78 g/cm3, the MOR of sheet material can effectively reach 35.4MPa, and thickness swelling rate is less than 2% within 36 hours.
Description
Technical field
The present invention relates to artificial board production technical field, more particularly to a kind of straw, branch bavin are the grass tree knot of raw material
Structure plate and its production technology.
Background technology
In current climate change by global concern, conserve forests as human consensus, and the timber money that the world can be cut down
In the case that source is increasingly reduced, socio-economic development is continuously increased to timber and its product demand, crop straws for producing is utilized
A kind of various dalles, it has also become trend.Agricultural crop straw includes：Cereal crops stalk (wheat straw, straw, cornstalk, height
Fine strain of millet stalk etc.), industrial crops stalk (cotton stalk, hemp stalk, reed stalk, Sunflower Stalk, beans stalk etc.).China produces a considerable number of every year
Agricultural crop straw, dalle is manufactured using agricultural crop straw raw material, can both save the forest reserves, can be substantial amounts of agriculture again
Crop material is found a way out, it is to avoid environment is polluted because of crop straw burning, is increased farmers' income simultaneously, promotes the solution of agriculture, rural areas and farmers problem
Certainly.
But conventionally produced straw particieboard low production efficiency, panel density is small, expansion rate of water absorption is high, and density can only
Reach 0.70 ~ 0.76g/cm3, expansion rate of water absorption is up to 4.5 ~ 6.0%, and MOR is low, can only achieve 12 ~ 20MPa, meanwhile,
The quality of production is unstable, and product quality fluctuation is larger, and surface often occur rough situation, has a strong impact on answering for sheet material
With.The method that tradition solves surface irregularity is that first the surface of oriented wood chipboard is carried out after fixed thick sanding processing, then is carried out
Secondary to paste density board or wood peel again, its weak point existed is：Complex process, low production efficiency, cost are high, and plate
Material is easy to crack, hygroscopic expansion, MOR are low, and quality is difficult to ensure.
The content of the invention
The purpose of the present invention is using straw and branch bavin as the standing grain of raw material for above-mentioned the deficiencies in the prior art there is provided a kind of
Wood structure plate and its production technology, its simple production process, cost are low, efficiency high, the board quality gone out using the technique productions
Stable, compact structure, expansion rate of water absorption are low and MOR is high, while also solving oriented wood chipboard is unable to direct surface decoration
The drawbacks of.
To realize that the technical scheme that the purpose of the present invention is used is：It is a kind of using straw and branch bavin as the grass tree knot of raw material
The production technology of structure plate, comprises the following steps：
1st, straw raw material is after segment cutter is blocked as 8 ~ 20cm length, into broken process again；
2nd, straw raw material section enters drying process after being ground into 1 ~ 2cm strip section through desintegrator；
3rd, the straw raw material of broken mistake is dried by drying machine again, and moisture is controlled 3%；
4th, dried straw raw material carries out the fiber that cold grinding obtains 30 ~ 40 mesh at normal temperatures through refiner；
Qualified fiber, is sent into feed bin by the 5th, fiber separation, and underproof fiber returns to the secondary fine grinding of precision grinding process, directly
Reach that 30 ~ 40 follow with one's eyes into feed bin to fiber；
6th, qualified fiber sends into glue mixer glue mixing through feed bin, by 65 ~ 90kg/m3Resin added apply adhesive, must mix
Glue fiber；
7th, branch bavin is after strip chipper flaking, into drying machine, makes its moisture content 3 ~ 5% after drying, then presses
1m3The ratio applying glue of wood chip 50 ~ 60kg adhesives, moisture control obtains applying glue wood chip between 8 ~ 12% after applying glue；
8th, following table flaggy, core layer, upper table flaggy are overlay successively by spreading machine, what upper and lower dash board layer was obtained by step 6
Glue mixing fiber determines thickness by spreading machine and determines weight to mat formation, and the applying glue wood chip that core layer is obtained by step 7 is mated formation through spreading machine；
9th, the slab for paving step 8 is through preformer precompressed, and precompressed pressurizes oil cylinder working-pressure between 7 ~ 12Mpa, compression
Than 6:1；
10th, the slab after precompressed enters HTHP press, is handled through hot-press solidifying, must solidify plain plate, wherein, press pressure
Plate temperature is at 180 DEG C ~ 200 DEG C, and first peak pressure P1 limit values are 135kgf/cm22, and low-pressure pressure retaining pressure is that P2/P3 is 25 ~ 45
Kgf/cm2, high pressure dwell pressure is that P4/P5 is 90 ~ 115 kgf/cm2, first time off-load keep pressure P6 be 60kgf/cm2,
Second of off-load keeps pressure P7 to be that 40 kgf/cm2, third time off-load holding pressure P8 are 25 kgf/cm2, the 4th off-load
It is 15kgf/cm2 to keep pressure P9, and main pressure time T1 is 120 seconds, and fixed thickness time T2 is 65 seconds, and first time unloading time T3 is 25
Second, second of unloading time T4 be 15 seconds, third time unloading time T5 be 10 seconds, the 4th unloading time T6 be 3 seconds；
11st, by after the plain plate natural cooling of the obtained solidification of step 10 48 hours, the fixed thick processing of surface sawing sanding is carried out, i.e.,
Obtain the grass tree structural slab of the application.
Above-mentioned straw raw material includes wheat straw, straw, cornstalk, sorghum stalk, reed stalk, cotton stalk, hemp stalk, Sunflower Stalk, beans stalk
In any one or more.
The thickness on the upper and lower top layer is 1 ~ 50mm, and the thickness of core layer is 3 ~ 300mm.
It is upper layer that raw material is made by stalk and branch bavin is embryo that oriented shaving core layer that raw material is made is constituted
Plate, by being combined above and below precompressed, and by once hot-forming.
A kind of grass tree structural slab, it is characterised in that：It is made using above-mentioned manufacturing technique method.
Using the grass tree structural slab and its production technology of the present invention, have the advantages that：
1）Take full advantage of the discarded object produced in agricultural production process, the farming such as straw, straw, cornstalk, sorghum stalk
Thing straw, and production and construction, renovate during discard branch bavin wooden waste be raw material, utilize brand-new production work
The novel artificial sheet material that skill is made, to substitute traditional solid wood products, can be widely used in architectural engineering do not load-bearing it is interior,
Side fascia, ceiling, floor, roofing roof boarding, sound panel, fire-proof plate, ventilating duct and prefabricated house, building template and car, ship every
Deck board, packaging material and fixed furniture material etc..Both protect wildwood resource, meet need of the economic development to Wood products
Ask, while the place to go of agricultural production wastes straw is solved, so that the effect improved the ecological environment.China produces stalk 700,000,000 per year
Many tons, by using this technique productions straw particieboard, straw and branch bavin are turned waste into wealth, crops are drastically increased
The value of straw, meanwhile, the production cost of sheet material is significantly reduced again, with great economic benefit and social value.
2）Production efficiency is high, fiber quality is secure, the sheet material quality of production is stable, by the way that straw raw material is cut into 8 ~ 20cm
Section, then be ground into 1 ~ 2cm strip section, be not only effectively improved segment and control water drying efficiency, and effectively improve
The efficiency and quality of extra-milled fibre, 30 ~ 40 mesh tenacity of fibre of moisture 3% are strong, and tensile strength is sufficient compared with moisture or is completely dried shape
10 ~ 20 times can be improved under state.
3）The present invention production when by stalk fibre directly with being combined above and below oriented wood chipboard, be once hot pressed into
Type, technique is simple, efficiently solve existing oriented wood chipboard because have between wood chip and wood chip be superimposed gap and caused by sheet material table
Face has uneven, it is impossible to the drawbacks of being directly used in production surface decorating plate problem, while the present invention also a saving oriented shaving
The raw material resources of the process loss of the fixed thick sanding in the surface of plate, effectively reduce production cost, improve production efficiency.
4）The application uses the straw fiber of 30 ~ 40 mesh, by being glued the control of ratio and water content, while using precompressed
The pressure mode being combined with hot pressing, and by hot pressing temperature, pressure, guarantor's release time control, by fiber sizing and applying glue
Wood chip activation diffusion, occurs creep, the moisture of fiber dash board layer and wood shavings core layer is constantly evaporated, reach fiber dash board layer and
Wood shavings core layer compact it is closely knit, meanwhile, realize the close reliable integrally connected of fiber dash board layer and wood shavings core plate interlayer.Fiber
The density of dash board layer and wood shavings core layer can reach 0.8g/cm respectively3With 0.78 g/cm3, the MOR of sheet material can be effective
35.4MPa is reached, the application can effectively utilize the plant in stalk fibre through verifying the straw fiber using 30 ~ 40 mesh repeatedly
The water resistance of thing wax shell layer, bonding strength and fiber water resistance are attained by optimum state, water sucting thickness expansion in 36 hours
Rate is less than 2%.
Brief description of the drawings
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the process chart of the present invention；
Fig. 2 is the structural representation of grass tree structural slab of the present invention；
Fig. 3 is the thermal buckling line chart of the present invention.
Embodiment
Embodiment one
As Figure 1-3：A kind of grass tree structural slab, successively including lowermost fibre dash board layer 3, middle multilayered wood orientation
Wood shavings core layer 2 and top fiber dash board layer 1, the lowermost fibre dash board layer 3, middle multilayered wood oriented shaving core layer
2 and the one of top fiber dash board layer 1 it is compressing.Its production technology, comprises the following steps：
1st, in wheat straw, straw, cornstalk, sorghum stalk, reed stalk, cotton stalk, hemp stalk, Sunflower Stalk, beans stalk any one or
A variety of straw raw materials are after segment cutter is blocked as 8cm length, into broken process again, when using multiple kinds of crops straw, its
Mixed proportion can be arbitrary proportion.
2nd, 8cm straw raw material section enters drying process after being ground into 1cm strip section through desintegrator, passes through abundant segment
Crush, effectively improve control water drying efficiency, and effectively improve the efficiency and quality of extra-milled fibre.
3rd, the straw raw material for being ground into 1cm is dried by drying machine, by moisture control 3%；By to the straw after crushing
The control of raw material moisture, effectively improves the toughness and tensile strength of straw fiber, on the one hand avoids straw fiber from being broken, and improves straw
The effective rate of utilization of rod fibers, on the other hand improves straw fiber quality, so as to effectively improve the total quality of final sheet material.
4th, the straw raw material after drying control water through step 3 carries out the fibre that cold grinding obtains 30 ~ 40 mesh at normal temperatures through refiner
Dimension；Straw fiber under the mesh number, quick activation diffusion and creep efficiency when can effectively improve compacting, so as to effectively improve heat
Efficiency and sheet material compacting quality, and the density of sheet material is pressed also to realize and effectively improve.
Qualified fiber, is sent into feed bin by the 5th, fiber separation, and undesirable fiber returns to precision grinding process secondary fine
Mill, until fiber reaches that 30 ~ 40 follow with one's eyes into feed bin；Strict control fiber mesh number, effectively improves the stability of product quality, and lead to
Cross straw raw material fully to be refined, effectively improve raw material availability.
6th, qualified fiber sends into glue mixer glue mixing through feed bin, applies adhesive by 65kg/m3 resin added, obtains glue mixing fine
Dimension；The resin added of fiber is strict controlled in 65 kg/m3, the pressed density of effective guarantee fibrous layer, creep effect and sheet material it is whole
Body performance quality, it is to avoid causing the internal bond strength of fibrous layer reduces, density reduces, the problems such as press time extends.
7th, branch bavin is after strip chipper according to a conventional method flaking, into drying machine, its moisture content is existed after drying
3%, then it is glued in the ratio of 1m3 wood chip 50kg adhesives, moisture control obtains applying glue wood chip between 8% after applying glue；Pass through
The moisture content of resin added is controlled, so as to be combined with follow-up suppression process, the combination of effective guarantee core layer and fiber sheath
Intensity, improves board quality.
8th, following table flaggy, core layer, upper table flaggy are overlay successively, and the glue mixing fiber that upper and lower dash board layer is obtained by step 6 is passed through
Cross spreading machine to determine thickness and determine weight to mat formation, the applying glue wood chip that core layer is obtained by step 7 is mated formation through spreading machine, upper and lower dash board layer
Thickness is 2mm, and core layer thickness is 5mm；
9th, the slab for paving step 8 is through preformer precompressed, and precompressed pressurizes oil cylinder working-pressure between 12Mpa, compression ratio
6：1；Slab thickness is compressed to by 1/6th volumes by precompressed, makes fiber and wood chip formation pre-tightening effect, discharges gas
The additional airs such as bubble, and fiber is evenly distributed, it is that the diffusion creep of raw material is prepared subsequently in hot pressing, to improve
Hot pressing efficiency.
10th, the slab after precompressed enters HTHP press, is handled through hot-press solidifying, must solidify plain plate, wherein, press pressure
Plate temperature is 180 DEG C, and first peak pressure P1 limit values are 135kgf/cm2, and low-pressure pressure retaining pressure is that P2/P3 is 25 ~ 45 kgf/cm
2, high pressure dwell pressure is that P4/P5 is 90 ~ 115 kgf/cm2, and first time off-load keeps pressure P6 for 60kgf/cm2, for the second time
Off-load keeps pressure P7 to be that 40 kgf/cm2, third time off-load holding pressure P8 are 25 kgf/cm2, the 4th off-load holding pressure
Power P9 is 15kgf/cm2, and main pressure time T1 is 120 seconds, and fixed thickness time T2 is 65 seconds, and first time unloading time T3 is 25 seconds, the
Secondary unloading time T4 is 15 seconds, third time unloading time T5 is 10 seconds, the 4th unloading time T6 is 3 seconds；In hot press period
The 1st stage, the upper and lower fiber sheath plate temperature of slab raises and carries out moisture evaporation first, the 2nd stage, and core layer enters
The moisture evaporation stage, the 3rd stage, i.e., after first peak pressure P1 and low-pressure pressure retaining stage is reached, within the T1 periods, slab
Moisture rapid, high volume evaporates, and about evaporates 50 ~ 70% moisture, and applying glue gradually solidifies, and fiber and wood chip rapidly enter diffusion creep
Stage, meanwhile, sheet material basic forming, the follow-up the 4th, 5,6,7,8 stages, T2, T3, T4, T5, T6 is respectively adopted different
Time ascending order carry out in multiple off-load pressure maintaining period, diffusion creep and moisture evaporation persistently occur inside slab, until the 9th rank
Diffusion creep is completed after section release completely, slab solidification sizing.
11st, by after the plain plate natural cooling of the obtained solidification of step 10 48 hours, the fixed thick processing of surface sawing sanding is carried out, i.e.,
Obtain the grass tree structural slab of the application.
Pass through by the plain plate of hot-press solidifying in 48 hours natural cooling phases, cooling procedure, residual moisture evaporating completely, glue
Matter is fully cured, and then carries out the fixed thick processing of sanding surface by sawing side, and entering sand-lime light by hygienic dolly, produces this
The grass tree structural slab of application.
Produce the grass tree structural slab of same model using the production technology of the present embodiment and extract sample and test, it is examined
Test result as follows：
| Fibrous layer density（g/cm3） | Core layer density（g/cm3） | MOR（MPa） | 36 hours thickness swelling rates（%） | |
| Sample 1 | 0.79 | 0.77 | 35.3 | 1.5 |
| Sample 2 | 0.8 | 0.77 | 35.2 | 1.3 |
| Sample 3 | 0.8 | 0.78 | 35.4 | 1.2 |
Embodiment two
The present embodiment and the difference of embodiment one are：In step 1 in its production technology, straw raw material is through blocking
For 12cm length；
Broken length is 1.5cm again in step 2；
Applying glue to fibers ratio in step 6 is 80kg/m3；
In step 7, dried water content is 4%, and wood chip applying glue ratio is 55kg adhesives/1m3 wood chips, and is glued
Moisture control afterwards is 10%；
Upper and lower dash board thickness degree is 30mm in step 8, and core layer thickness is 200mm；
Step 9 carries out precompressed using 10Mpa pressure；
The temperature control of platen is at 190 DEG C in step 10.
Produce the grass tree structural slab of same model using the production technology of the present embodiment and extract sample and test, it is examined
Test result as follows：
| Fibrous layer density（g/cm3） | Core layer density（g/cm3） | MOR（MPa） | 36 hours thickness swelling rates（%） | |
| Sample 1 | 0.79 | 0.77 | 35.3 | 1.6 |
| Sample 2 | 0.79 | 0.76 | 35.2 | 1.8 |
| Sample 3 | 0.79 | 0.77 | 35.2 | 1.75 |
Embodiment three
The present embodiment and the difference of embodiment one or two are：In step 1 in its production technology, straw raw material warp
Block as 20cm length；
Broken length is 2cm again in step 2；
Applying glue to fibers ratio in step 6 is 90kg/m3；
In step 7, dried water content is 5%, and wood chip applying glue ratio is 60kg adhesives/1m3 wood chips, and is glued
Moisture control afterwards is 12%；
Upper and lower dash board thickness degree is 50mm in step 8, and core layer thickness is 300mm；
Step 9 carries out precompressed using 12Mpa pressure；
The temperature control of platen is at 200 DEG C in step 10.
Produce the grass tree structural slab of same model using the production technology of the present embodiment and extract sample and test, it is examined
Test result as follows：
| Fibrous layer density（g/cm3） | Core layer density（g/cm3） | MOR（MPa） | 36 hours thickness swelling rates（%） | |
| Sample 1 | 0.79 | 0.78 | 35 | 2 |
| Sample 2 | 0.79 | 0.78 | 35.4 | 1.8 |
| Sample 3 | 0.8 | 0.78 | 35.2 | 1.75 |
The grass tree structural slab of the present invention, simple production process, cost are low, efficiency high, steady quality, compact structure, water suction
Expansion rate is low and MOR is high.
Technical scheme is not restricted in the range of embodiment of the present invention.The not detailed description of the present invention
Technology contents be known technology.
Claims (5)
1. a kind of grass tree structure board production technology, it is characterised in that：It comprises the following steps：
Step 1, straw raw material are after segment cutter is blocked as 8 ~ 20cm length, into broken process again；
Step 2, straw raw material section enter drying process after being ground into 1 ~ 2cm strip section through desintegrator；
The straw raw material of step 3, again broken mistake is dried by drying machine, and moisture is controlled 3%；
Step 4, dried straw raw material carry out the fiber that cold grinding obtains 30 ~ 40 mesh at normal temperatures through refiner；
Qualified fiber, is sent into feed bin by step 5, fiber separation, and underproof fiber returns to the secondary fine grinding of precision grinding process, directly
Reach that 30 ~ 40 follow with one's eyes into feed bin to fiber；
Step 6, qualified fiber send into glue mixer glue mixing through feed bin, apply adhesive by 65 ~ 90kg/m3 resin added, must mix
Glue fiber；
Step 7, branch bavin are after strip chipper flaking, into drying machine, make its moisture content 3 ~ 5% after drying, then press
The ratio applying glue of 1m3 wood chip 50 ~ 60kg adhesives, moisture control obtains applying glue wood chip between 8 ~ 12% after applying glue；
Step 8, overlay following table flaggy, core layer, upper table flaggy successively, the glue mixing fiber that upper and lower dash board layer is obtained by step 6 is passed through
Cross spreading machine to determine thickness and determine weight to mat formation, the applying glue wood chip that core layer is obtained by step 7 is mated formation through spreading machine；
Step 9, the slab for paving step 8 are through preformer precompressed, and precompressed pressurizes oil cylinder working-pressure between 7 ~ 12Mpa, compression
Than for 6：1；
Slab after step 10, precompressed enters HTHP press, is handled through hot-press solidifying, must solidify plain plate, wherein, press pressure
Plate temperature is at 180 DEG C ~ 200 DEG C, and first peak pressure P1 limit values are 135kgf/cm2, and low-pressure pressure retaining pressure is that P2/P3 is 25 ~ 45
Kgf/cm2, high pressure dwell pressure is that P4/P5 is 90 ~ 115 kgf/cm2, first time off-load keep pressure P6 be 60kgf/cm2,
Second of off-load keeps pressure P7 to be that 40 kgf/cm2, third time off-load holding pressure P8 are 25 kgf/cm2, the 4th off-load
It is 15kgf/cm2 to keep pressure P9, and main pressure time T1 is 120 seconds, and fixed thickness time T2 is 65 seconds, and first time unloading time T3 is 25
Second, second of unloading time T4 be 15 seconds, third time unloading time T5 be 10 seconds, the 4th unloading time T6 be 3 seconds；
Step 11, will the plain plate natural cooling of the obtained solidification of step 10 after 48 hours, carry out the fixed thick processing of surface sawing sanding, i.e.,
Obtain the grass tree structural slab of the application.
2. grass tree structure board production technology as claimed in claim 1, it is characterised in that：Above-mentioned straw raw material includes
Any one or more in wheat straw, straw, cornstalk, sorghum stalk, cotton stalk, hemp stalk, reed stalk, Sunflower Stalk, beans stalk.
3. grass tree structure board production technology as claimed in claim 1, it is characterised in that：The thickness on the upper and lower top layer be 1 ~
50mm, the thickness of core layer is 3 ~ 300mm.
4. grass tree structure board production technology as claimed in claim 1, it is characterised in that：It is the upper following table that raw material is made by stalk
Layer and branch bavin are the blanket that the oriented shaving core layer that raw material is made is constituted, and by being combined above and below precompressed, and are passed through
It is once hot-forming.
5. a kind of grass tree structural slab, it is characterised in that：It is using the manufacturing technique method described in above-mentioned any one claim
It is made.
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| CN201510323980.3A CN104960066B (en) | 2015-06-15 | 2015-06-15 | A kind of grass tree structural slab and its production technology |
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| CN201510323980.3A CN104960066B (en) | 2015-06-15 | 2015-06-15 | A kind of grass tree structural slab and its production technology |
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| CN104960066B true CN104960066B (en) | 2017-09-22 |
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