CN107984589A - A kind of high-strength directional particieboard and its production method - Google Patents

A kind of high-strength directional particieboard and its production method Download PDF

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Publication number
CN107984589A
CN107984589A CN201711495554.3A CN201711495554A CN107984589A CN 107984589 A CN107984589 A CN 107984589A CN 201711495554 A CN201711495554 A CN 201711495554A CN 107984589 A CN107984589 A CN 107984589A
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strength
production
wood shavings
particieboard
layer
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CN107984589B (en
Inventor
薛茂林
钟笃章
国智武
葛立军
郑凤山
侯海建
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Shouguang Luli Wood Co Ltd
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Shouguang Luli Wood Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27LREMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/18Auxiliary operations, e.g. preheating, humidifying, cutting-off

Abstract

The present invention provides a kind of high-strength directional particieboard and its production method, the high-strength directional particieboard top layer and the mass ratio of sandwich layer are 40 55%/60 45%, parallel static bending strength is 49.36 64.25MPa, vertical static bending strength is 23.20 27.36Mpa, and internal bond strength is 1.25 2.52MPa;The production method of the present invention, in heat-press step, sprinkling on the surface of mat amount is 30 50 ㎎/㎡, and press speed is 200 300mm/s, and the platen temperature in press temperature control region is respectively 240 245 DEG C, 230 240 DEG C, 215 225 DEG C, 175 185 DEG C, 155 165 DEG C, the technological parameter of the present invention is easy to control, method is simple, and production qualification rate is high, and product thickness is uniform, stablizes, thickness deviation is small, improves production efficiency.

Description

A kind of high-strength directional particieboard and its production method
Technical field
The invention belongs to particieboard manufacturing technology field, is related to a kind of oriented wood chipboard, and in particular to a kind of high intensity is determined To particieboard and its production method.
Background technology
Oriented wood chipboard has higher physical and mechanical property, it is considered to be the ideal of following glued board is cheap to substitute production Product.Oriented strand board panels matter is fine and closely woven, has the surface processing performance better than glued board and particieboard.Oriented wood chipboard combines The advantages of fiberboard and particieboard, be the main with one of material of following Furniture panel.
Oriented wood chipboard is through drying, sizing, orienting spreading and hot-forming.Wood shavings mat formation shaping when, oriented wood chipboard Two top layers up and down glue mixing wood shavings are arranged by its machine direction stringer, and sandwich layer wood shavings are transversely arranged, form three-decker Plate embryo, and then oriented wood chipboard is made in hot pressing.
Existing oriented wood chipboard is primarily present following defect:(1)Existing oriented wood chipboard, internal bond strength and bending Elasticity modulus, it is impossible to improve at the same time;
(2)The production method of existing oriented wood chipboard, thickness swelling rate is high, and wet parallel static bending strength is low, in moist shape It cannot meet intensity requirement under state;
(3)The production method of existing oriented wood chipboard, obtained oriented wood chipboard orientation ratio is low, low production efficiency.
The content of the invention
The present invention deficiency, technical problems to be solved by the invention for more than are to provide a kind of high-strength directional particieboard And its production method.The present invention can realize following goal of the invention:
(1)High-strength directional particieboard produced by the invention, can improve the internal bond strength and elasticity of flexure mould of product at the same time Amount, expands application range;
(2)High-strength directional particieboard produced by the invention, can reduce product thickness swelling rate and moisture content;
(3)The high-strength directional particieboard that the production method of high-strength directional particieboard using the present invention obtains, parallel quiet song Intensity and vertical static bending strength are high.
In order to solve the above technical problems, using following technical scheme:
A kind of high-strength directional particieboard, it is characterised in that the mass ratio of the high-strength directional particieboard, top layer and sandwich layer is 40-55%/60-45%。
The high-strength directional particieboard, internal bond strength and the modulus of elasticity in static bending are improved at the same time, high-strength directional Particieboard internal bond strength is 1.25-2.52MPa, and the parallel modulus of elasticity in static bending is 9035-9945MPa, vertical curve springform Measure as 3206-3621MPa;Thickness swelling rate 4.11-5.2%, moisture content 3.5%, water-fast, high temperature resistant, weatherability obtain Lifting;Parallel static bending strength is 49.36-64.25MPa, and vertical static bending strength is 23.20-27.36MPa.
A kind of production method of high-strength directional particieboard, long-log sheer are obtained by knife shaft flaker flaking, the length Material flaking machine knife ring rotating speed 300rpm, trolley locator position 60mm/sec, long 32 ° of material fly cutter sharpening angle, reverse nose angle degree For 75 °, it is 0.5 ㎜ that fly cutter, which stretches knife amount,;Cutter service life≤2.5-4h.
The long-log sheer, length 60-130mm, thickness 0.45-0.65mm, width 15-30mm;The long-log sheer Raw material be eucalyptus.
The drying, moisture content≤3.5% after drying, to ensure that moisture content is stablized, dry bin-level >=45%.
The wood shavings sizing, top layer wood shavings applied amount:
Sandwich layer wood shavings applied amount:
Being glued later moisture content is:Top layer wood shavings:9-11%, sandwich layer wood shavings:5-6%.
Described to mat formation, density of mating formation is 700-710kg/m3;The measuring chute material position of mating formation is not less than 45% material position;Mat formation Moisture content afterwards is top layer slab:9-11%, sandwich layer slab:5-6%.
In the heat-press step, sprinkling on the surface of mat amount is 30-40 ㎎/㎡, and releasing agent is prepared with commercially available releasing agent stoste Solution, releasing agent stoste in release agent solution:Water=1:2, dosage of the release agent solution on slab is 1.5-3L/ ㎡;Press speed Spend for 100-300mm/s;
The platen temperature in five temperature control regions of press is respectively 240-245 DEG C, 230-240 DEG C, 215-225 DEG C, 175-185 DEG C, 155-165℃;The pressure reference value of three pressure control zones of press is 0.00-3.5N/mm2
The present invention uses above technical scheme, compared with prior art, has the following advantages:
(1)The high-strength directional particieboard of the present invention, internal bond strength and the modulus of elasticity in static bending are improved at the same time, and high intensity is fixed It is 1.25-2.52MPa to particieboard internal bond strength, the parallel modulus of elasticity in static bending is 9035-9945MPa, and vertical curve is elastic Modulus is 3206-3621MPa;
(2)The high-strength directional particieboard of the present invention, thickness swelling rate 4.11-5.2%, moisture content 3.5% are water-fast, resistance to High temperature, weatherability get a promotion;
(3)The high-strength directional particieboard of the present invention, parallel static bending strength is 49.36-64.25MPa, and vertical static bending strength is 23.20-27.36MPa;
(4)The production method of the high-strength directional particieboard of the present invention, is easy to control with technological parameter, and method is simple, production The advantages of qualification rate is high, and production efficiency is high;
By oriented wood chipboard produced by the invention, not only intensity is high, and moistureproof and waterproof performance is super good, index performance considerably beyond The standard requirement of the highest level OSB4 of LY/T1580-2010.Oriented wood chipboard of the invention is water-fast, high temperature resistant, weatherability Get a promotion, and the burst size of methanal of plate has reached the ultralow scope of 0.3mg/100g or so, well below solid wood 0.6- The burst size of methanal of 1.0mg/100g, has been truly realized the addition of zero formaldehyde, economic and environment-friendly, plate safety health, burst size of methanal Reach below log rank.
Embodiment
A kind of high-strength directional particieboard of embodiment 1 and its production method
A kind of high-strength directional particieboard, is hot pressing after being mated formation by three layers of upper epidermis, sandwich layer and layer by orienting spreading disk Form;The upper epidermis and the layer form top layer;The sandwich layer and the angle of mating formation on the top layer are in 90 ± 10 ° of scopes Interior accounting is more than 90%, and the mass ratio of the top layer and the sandwich layer is 40%/60%.
A kind of production method of high-strength directional particieboard of the present invention, specifically includes following steps:
(1)It is prepared by raw material:
The present invention relates to raw material be long-log sheer, be the regulation obtained by large diameter log after chipper machining Length, width, the flaking of thickness.
The long-log sheer is obtained by knife shaft flaker flaking, the long-log sheer machine knife ring rotating speed 300rpm, trolley Locator position 60mm/sec, long 32 ° of material fly cutter sharpening angle, reverse nose angle degree are 75 °, and it is 0.5 ㎜ that fly cutter, which stretches knife amount,;Cutter Service life≤2.5-4h.
The long-log sheer, length 60-130mm, thickness 0.45-0.65mm, width 15-30mm;
The raw material of the long-log sheer are eucalyptus.
(2)It is dry
The long-log sheer being machined to by long-log sheer is kept in into long-log sheer feed bin, then by belt-conveying to roller Drying machine is dried.
The drying, moisture content≤3.5% after drying, to ensure that moisture content is stablized, dry bin-level >=45%.
Long-log sheer after the completion of drying is sieved into cylinder round sifter, obtains sandwich layer wood shavings and top layer wood shavings,
The sandwich layer wood shavings and the top layer wood shavings respectively enter the dry wood shavings feed bin in top layer and the dry wood shavings feed bin of sandwich layer is kept in;
Sandwich layer wood shavings and top layer shaving shape are as follows:
(3)Wood shavings are glued
The sandwich layer wood shavings that screening finishes, which enter in sandwich layer blender, to be glued, and different degrees of work is added in Process of Applying Glue Skill water, waterproofing agent, PMDI glue;
Sieve the top layer wood shavings finished to be glued into top layer blender, different degrees of technique is added in Process of Applying Glue Water, waterproofing agent, PMDI glue;
The sizing of top layer wood shavings and the sizing of sandwich layer wood shavings are carried out according to the material in following form and proportioning:
Top layer wood shavings applied amount:
The percentage of proportioning accounts for the percentage of top layer wood shavings quality for each material above.
Sandwich layer wood shavings applied amount:
The percentage of proportioning accounts for the percentage of sandwich layer wood shavings quality for each material above.
Being glued later moisture content is:Top layer wood shavings:9%, sandwich layer wood shavings:5%;Wood shavings after sizing are transported by scraper plate respectively Defeated machine is transported to feed bin of mating formation and is kept in case being mated formation.
Heretofore described PMDI is the more phenol isocyanates of polymethylene;The process water is commonly industrial Water;The waterproofing agent is paraffin wax emulsions.
(4)Mat formation
Feed bin of mating formation is divided into upper table layer stock bin, following table layer stock bin, sandwich layer feed bin;Each feed bin lower end has metering feed bin, respectively Metering is carried out to each layer raw material to mat formation.
Points three layers crisscross to mat formation:Disk type spreading head is mated formation for top layer wood shavings, and top layer wood shavings are from the front end of feed bin Discharge and by disc-type roller, top layer wood shavings are mated formation along production line direction;
Sandwich layer wood shavings discharge from the front end of feed bin and are mated formation by fin spreading head, by sandwich layer wood shavings along with production line direction into 90 O mats formation.
Accounting of the angle in the range of 90 ± 10 ° of mating formation of the sandwich layer wood shavings and top layer wood shavings is more than 90%;Mat formation Density is 700kg/m3;The measuring chute material position of mating formation is not less than 45% material position, ensures the steady of density knead dough weight of mating formation, paving Slab is obtained after the completion of dress.Moisture content after mating formation is top layer slab:9%, sandwich layer slab:5%.
Described to mat formation, the parameter of spreading machine is as follows:
(5)Hot pressing
In the heat-press step, sprinkling on the surface of mat amount is 30 ㎎/㎡, prepares release agent solution with commercially available releasing agent stoste, takes off Releasing agent stoste in mould agent solution:Water=1:2, dosage of the release agent solution on slab is 1.5L/ ㎡;Press speed is 100mm/s;
The platen temperature in five temperature control regions of press is respectively 240 DEG C, 230 DEG C, 215 DEG C, 175 DEG C, 155 DEG C;Three of press The pressure reference value of pressure control zones is 0.01N/mm2
Plain plate is obtained after hot-forming, the element board size is a length of 2440 ㎜, and width is 1220 ㎜;The thickness deviation of plain plate is small.
(6)Post processing
Post-processed after hot pressing, the stacking ejecting plate in post processing must be stacked neatly, next line on chock;Sheetpile pile health 48 it is small when after sanding.
A kind of high-strength directional particieboard obtained using the production method described in the embodiment of the present invention can be used for floor The every field such as base material, toilet, kitchen, outdoor wooden structural building, corridor, container.
The high-strength directional of the present invention is dug according to detection method as defined in GB18580-2001 and LY/T1580-2010 Card is detected, and the result of detection is as shown in table 1 below:
Table 1:High-strength directional particieboard testing result of the present invention
A kind of high-strength directional particieboard of embodiment 2 and its production method
A kind of high-strength directional particieboard, is hot pressing after being mated formation by three layers of upper epidermis, sandwich layer and layer by orienting spreading disk Form;The upper epidermis and the layer form top layer;The sandwich layer and the angle of mating formation on the top layer are in 90 ± 10 ° of scopes Interior accounting is more than 90%, and the mass ratio of the top layer and the sandwich layer is 55%/45%.
A kind of production method of high-strength directional particieboard of the present invention, specifically includes following steps:
(1)It is prepared by raw material:
The present invention relates to raw material be long-log sheer, be the regulation obtained by large diameter log after chipper machining Length, width, the flaking of thickness.
The long-log sheer is obtained by knife shaft flaker flaking, the long-log sheer machine knife ring rotating speed 420rpm, trolley Locator position 100mm/sec, long 32 ° of material fly cutter sharpening angle, reverse nose angle degree are 75 °, and it is 0.8 ㎜ that fly cutter, which stretches knife amount,;Knife Has service life≤2.5-4h.
The long-log sheer, length 60-130mm, thickness 0.45-0.65mm, width 15-30mm;
The raw material of the long-log sheer are eucalyptus.
(2)It is dry
The long-log sheer being machined to by long-log sheer is kept in into long-log sheer feed bin, then by belt-conveying to roller Drying machine is dried.
The drying, moisture content≤3.5% after drying, to ensure that moisture content is stablized, dry bin-level >=45%.
Long-log sheer after the completion of drying is sieved into cylinder round sifter, obtains sandwich layer wood shavings and top layer wood shavings,
The sandwich layer wood shavings and the top layer wood shavings respectively enter the dry wood shavings feed bin in top layer and the dry wood shavings feed bin of sandwich layer is kept in;
Sandwich layer wood shavings and top layer shaving shape are as follows:
The upper epidermis wood shavings and layer wood shavings use a drum-type glue mixer, and sandwich layer wood shavings use separately One drum-type glue mixer;So it is more advantageous to the independent control of the additive amount such as top layer and sandwich layer wood shavings glue additive amount, process water System, is conducive to the quick hot pressing of plate, improves board quality.
(3)Wood shavings are glued
The sandwich layer wood shavings that screening finishes, which enter in sandwich layer blender, to be glued, and different degrees of work is added in Process of Applying Glue Skill water, waterproofing agent, PMDI glue;
Sieve the top layer wood shavings finished to be glued into top layer blender, different degrees of technique is added in Process of Applying Glue Water, waterproofing agent, PMDI glue;
The sizing of top layer wood shavings and the sizing of sandwich layer wood shavings are carried out according to the material in following form and proportioning:
Top layer wood shavings applied amount:
The percentage of proportioning accounts for the percentage of top layer wood shavings quality for each material above.
Sandwich layer wood shavings applied amount:
The percentage of proportioning accounts for the percentage of sandwich layer wood shavings quality for each material above.
After wood shavings sizing, the moisture content of top layer wood shavings is 11%, and the moisture content of sandwich layer wood shavings is 6%;Wood shavings after sizing Feed bin of mating formation is transported to by scratch board conveyor respectively to be kept in case being mated formation.
PMDI described in the embodiment of the present invention is the more phenol isocyanates of polymethylene;The process water is common work Industry water;The waterproofing agent is paraffin wax emulsions.
(4)Mat formation
Feed bin of mating formation is divided into upper table layer stock bin, following table layer stock bin, sandwich layer feed bin;Each feed bin lower end has metering feed bin, respectively Metering is carried out to each layer raw material to mat formation.
Points three layers crisscross to mat formation:Disk type spreading head is mated formation for top layer wood shavings, and top layer wood shavings are from the front end of feed bin Discharge and by disc-type roller, top layer wood shavings are mated formation along production line direction;
Sandwich layer wood shavings discharge from the front end of feed bin and are mated formation by fin spreading head, by sandwich layer wood shavings along with production line direction into 90 O mats formation.
Accounting of the angle in the range of 90 ± 10 ° of mating formation of the sandwich layer wood shavings and top layer wood shavings is more than 90%;Mat formation Density is 710kg/m3;The measuring chute material position of mating formation is not less than 60% material position, ensures the steady of density knead dough weight of mating formation, paving Slab is obtained after the completion of dress.Moisture content after mating formation is top layer slab:11%, sandwich layer slab:6%.
Described to mat formation, the parameter of spreading machine is as follows:
(5)Hot pressing
In the heat-press step, sprinkling on the surface of mat amount is 40 ㎎/㎡, prepares release agent solution with commercially available releasing agent stoste, takes off Releasing agent stoste in mould agent solution:Water=1:2, dosage of the release agent solution on slab is 3L/ ㎡;Press speed is 300mm/ s;
The platen temperature in five temperature control regions of press is respectively 245 DEG C, 240 DEG C, 225 DEG C, 185 DEG C, 165 DEG C;Three of press The pressure reference value of pressure control zones is 3.5N/mm2
Plain plate is obtained after hot-forming, the element board size is a length of 2440 ㎜, and width is 1220 ㎜;The thickness deviation of plain plate is small.
(6)Post processing
Post-processed after hot pressing, the stacking ejecting plate in post processing must be stacked neatly, next line on chock;Sheetpile pile health 48 it is small when after sanding.
A kind of high-strength directional particieboard obtained using the production method described in the embodiment of the present invention can be used for floor The every field such as base material, toilet, kitchen, outdoor wooden structural building, corridor, container.
The high-strength directional of the present invention is dug according to detection method as defined in GB18580-2001 and LY/T1580-2010 Card is detected, and the result of detection is as shown in table 2 below:
Table 2:High-strength directional particieboard testing result of the present invention
A kind of high-strength directional particieboard of embodiment 3 and its production method
A kind of high-strength directional particieboard, is hot pressing after being mated formation by three layers of upper epidermis, sandwich layer and layer by orienting spreading disk Form;The upper epidermis and the layer form top layer;The sandwich layer and the angle of mating formation on the top layer are in 90 ± 10 ° of scopes Interior accounting is more than 90%, and the mass ratio of the top layer and the sandwich layer is 51%/49%.
A kind of production method of high-strength directional particieboard of the present invention, specifically includes following steps:
(1)It is prepared by raw material:
The present invention relates to raw material be long-log sheer, be the regulation obtained by large diameter log after chipper machining Length, width, the flaking of thickness.
The long-log sheer is obtained by knife shaft flaker flaking, the long-log sheer machine knife ring rotating speed 360rpm, trolley Locator position 85mm/sec, long 32 ° of material fly cutter sharpening angle, reverse nose angle degree are 75 °, and it is 0.6 ㎜ that fly cutter, which stretches knife amount,;Cutter Service life≤2.5-4h.
The long-log sheer, length 60-130mm, thickness 0.45-0.65mm, width 15-30mm;
The raw material of the long-log sheer are eucalyptus.
(2)It is dry
The long-log sheer being machined to by long-log sheer is kept in into long-log sheer feed bin, then by belt-conveying to roller Drying machine is dried.
The drying, moisture content≤3.5% after drying, to ensure that moisture content is stablized, dry bin-level >=45%.
Long-log sheer after the completion of drying is sieved into cylinder round sifter, obtains sandwich layer wood shavings and top layer wood shavings,
The sandwich layer wood shavings and the top layer wood shavings respectively enter the dry wood shavings feed bin in top layer and the dry wood shavings feed bin of sandwich layer is kept in;
Sandwich layer wood shavings and top layer shaving shape are as follows:
(3)Wood shavings are glued
The sandwich layer wood shavings that screening finishes, which enter in sandwich layer blender, to be glued, and different degrees of work is added in Process of Applying Glue Skill water, waterproofing agent, PMDI glue;
Sieve the top layer wood shavings finished to be glued into top layer blender, different degrees of technique is added in Process of Applying Glue Water, waterproofing agent, PMDI glue;
The sizing of top layer wood shavings and the sizing of sandwich layer wood shavings are carried out according to the material in following form and proportioning:
Top layer wood shavings applied amount:
The percentage of proportioning accounts for the percentage of top layer wood shavings quality for each material above.
Sandwich layer wood shavings applied amount:
The percentage of proportioning accounts for the percentage of sandwich layer wood shavings quality for each material above.
Being glued later moisture content is:Top layer wood shavings:10%, sandwich layer:5.5%;Wood shavings after sizing are transported by scraper plate respectively Defeated machine is transported to feed bin of mating formation and is kept in case being mated formation.
Heretofore described PMDI is the more phenol isocyanates of polymethylene;The process water is commonly industrial Water;The waterproofing agent is paraffin wax emulsions.
(4)Mat formation
Feed bin of mating formation is divided into upper table layer stock bin, following table layer stock bin, sandwich layer feed bin;Each feed bin lower end has metering feed bin, respectively Metering is carried out to each layer raw material to mat formation.
Points three layers crisscross to mat formation:Mat formation successively layer, sandwich layer, upper epidermis;Mat formation belt in layer when mating formation Surface and upper epidermis are equipped with water injector after mating formation.Disk type spreading head is mated formation for top layer wood shavings, and top layer wood shavings are from feed bin Front end discharges and by disc-type roller, and top layer wood shavings are mated formation along production line direction;
Sandwich layer wood shavings discharge from the front end of feed bin and are mated formation by fin spreading head, by sandwich layer wood shavings along with production line direction into 90 O mats formation.
Accounting of the angle in the range of 90 ± 10 ° of mating formation of the sandwich layer wood shavings and top layer wood shavings is more than 90%;Mat formation Density is 705kg/m3;The measuring chute material position of mating formation is not less than 60% material position, ensures the steady of density knead dough weight of mating formation, paving Slab is obtained after the completion of dress.Moisture content after mating formation is top layer slab:10%, sandwich layer slab:5.5%.
Described to mat formation, the parameter of spreading machine is as follows:
(5)Hot pressing
In the heat-press step, sprinkling on the surface of mat amount is 36 ㎎/㎡, prepares release agent solution with commercially available releasing agent stoste, takes off Releasing agent stoste in mould agent solution:Water=1:2, dosage of the release agent solution on slab is 2.4L/ ㎡;Press speed is 255mm/s;
The platen temperature in five temperature control regions of press is respectively 242 DEG C, 238 DEG C, 224 DEG C, 183 DEG C, 162 DEG C;Three of press The pressure reference value of pressure control zones is 1.5N/mm2
Plain plate is obtained after hot-forming, the element board size is a length of 2440 ㎜, and width is 1220 ㎜;The thickness deviation of plain plate is small.
(6)Post processing
Post-processed after hot pressing, the stacking ejecting plate in post processing must be stacked neatly, next line on chock;Sheetpile pile health 48 it is small when after sanding.
A kind of high-strength directional particieboard obtained using the production method described in the embodiment of the present invention can be used for floor The every field such as base material, toilet, kitchen, outdoor wooden structural building, corridor, container.
The high-strength directional of the present invention is dug according to detection method as defined in GB18580-2001 and LY/T1580-2010 Card is detected, and the result of detection is as shown in table 3 below:
Table 3:High-strength directional particieboard testing result of the present invention
The assay method of burst size of methanal of the present invention uses Extraction method.
In conclusion floor base material, toilet, kitchen, outdoor wood may be used as by high-strength panel produced by the invention The every field such as matter structural building, corridor, container, thoroughly solve oriented wood chipboard and cannot be used for beyond indoor furniture finishing Problem, its application range is further extended.
Unless otherwise indicated, percentage of the present invention is percetage by weight, and ratio of the present invention, is Mass ratio;The parallel static bending strength is the static bending strength parallel to production line direction of mating formation;The vertical static bending strength, For perpendicular to the static bending strength in production line direction of mating formation;The parallel modulus of elasticity in static bending, is parallel to production line side of mating formation To the modulus of elasticity in static bending;The vertical curve elasticity modulus, is the modulus of elasticity in static bending perpendicular to production line direction of mating formation.
Finally it should be noted that:The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be with Modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.It is all Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on, should be included in the guarantor of the present invention Within the scope of shield.

Claims (9)

  1. A kind of 1. high-strength directional particieboard, it is characterised in that the mass ratio of the high-strength directional particieboard, top layer and sandwich layer For 40-55%/60-45%.
  2. A kind of 2. high-strength directional particieboard according to claim 1, it is characterised in that the high-strength directional wood shavings Plate, the parallel modulus of elasticity in static bending are 9035-9945MPa, and vertical curve elasticity modulus is 3206-3621MPa, and internal bond strength is 1.25-2.52MPa。
  3. A kind of 3. high-strength directional particieboard according to claim 1, it is characterised in that the high-strength directional wood shavings Plate, parallel static bending strength are 49.36-64.25MPa, and vertical static bending strength is 23.20-27.36Mpa.
  4. A kind of 4. production method of high-strength directional particieboard, it is characterised in that described to mat formation the described method includes mating formation, paving The moisture content of top layer slab is 9-11% after dress, and the moisture content of sandwich layer slab is 5-6%.
  5. A kind of 5. production method of high-strength directional particieboard according to claim 4, it is characterised in that the method bag Hot pressing is included, in the hot pressing, sprinkling on the surface of mat amount is 30-50 ㎎/㎡, and press speed is 200-300mm/s.
  6. A kind of 6. production method of high-strength directional particieboard according to claim 4, it is characterised in that the hot pressing, The platen temperature in press temperature control region is respectively 240-245 DEG C, 230-240 DEG C, 215-225 DEG C, 175-185 DEG C, 155-165 ℃。
  7. A kind of 7. production method of high-strength directional particieboard according to claim 4, it is characterised in that the method bag Include and mat formation, described to mat formation, density of mating formation is 700-710kg/m3.
  8. A kind of 8. production method of high-strength directional particieboard according to claim 4, it is characterised in that the raw material system Standby, long 32 ° of the material fly cutter sharpening angle of chipper, reverse nose angle degree is 75 °.
  9. A kind of 9. production method of high-strength directional particieboard according to claim 4, it is characterised in that the method bag Raw material preparation is included, prepared by the raw material, the knife ring rotating speed 300-420rpm of chipper, it is 0.5-0.8 ㎜ that fly cutter, which stretches knife amount,.
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CN108177228A (en) * 2018-02-10 2018-06-19 寿光市鲁丽木业股份有限公司 A kind of high-strength shaving board and preparation method thereof
CN110815485A (en) * 2019-10-09 2020-02-21 寿光市鲁丽木业股份有限公司 Waterproof antibacterial oriented strand board and preparation method thereof
CN110948630A (en) * 2019-12-21 2020-04-03 寿光市鲁丽木业股份有限公司 Oriented strand board with surface layer made of ultrathin large-piece wood shavings and preparation process of oriented strand board

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* Cited by examiner, † Cited by third party
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CN108177228A (en) * 2018-02-10 2018-06-19 寿光市鲁丽木业股份有限公司 A kind of high-strength shaving board and preparation method thereof
CN110815485A (en) * 2019-10-09 2020-02-21 寿光市鲁丽木业股份有限公司 Waterproof antibacterial oriented strand board and preparation method thereof
CN110948630A (en) * 2019-12-21 2020-04-03 寿光市鲁丽木业股份有限公司 Oriented strand board with surface layer made of ultrathin large-piece wood shavings and preparation process of oriented strand board

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