CN103612291B - Bamboo willow recombinant material manufacturing process - Google Patents
Bamboo willow recombinant material manufacturing process Download PDFInfo
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- CN103612291B CN103612291B CN201310608457.6A CN201310608457A CN103612291B CN 103612291 B CN103612291 B CN 103612291B CN 201310608457 A CN201310608457 A CN 201310608457A CN 103612291 B CN103612291 B CN 103612291B
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- 239000000463 material Substances 0.000 title claims abstract description 77
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 68
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 68
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 68
- 239000011425 bamboo Substances 0.000 title claims abstract description 68
- 241000124033 Salix Species 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 240000003917 Bambusa tulda Species 0.000 title 1
- 239000002023 wood Substances 0.000 claims abstract description 92
- 241001330002 Bambuseae Species 0.000 claims abstract description 67
- 238000003825 pressing Methods 0.000 claims abstract description 38
- 238000005470 impregnation Methods 0.000 claims abstract description 36
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive Effects 0.000 claims abstract description 20
- 239000005011 phenolic resin Substances 0.000 claims abstract description 18
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 18
- 238000007731 hot pressing Methods 0.000 claims description 58
- 238000001035 drying Methods 0.000 claims description 19
- 238000003892 spreading Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000004513 sizing Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005755 formation reaction Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000003068 static Effects 0.000 description 4
- 239000003513 alkali Substances 0.000 description 2
- 206010002855 Anxiety Diseases 0.000 description 1
- 206010057666 Anxiety disease Diseases 0.000 description 1
- 241000219495 Betulaceae Species 0.000 description 1
- 206010011376 Crepitations Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011609 Pinus massoniana Nutrition 0.000 description 1
- 241000018650 Pinus massoniana Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 235000018185 birch Nutrition 0.000 description 1
- 235000018212 birch Nutrition 0.000 description 1
- 238000011030 bottleneck Methods 0.000 description 1
- -1 daptability Species 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002068 genetic Effects 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Abstract
The present invention relates to bamboo willow recombinant material manufacturing process, comprising: the brush wood of bamboo willow and small diameter grade material are removed the peel and makes wood bundle along its longitudinal slitting; Wood bundle being dried to moisture content is 4-7%; It is in the water-soluble phenolic resin adhesive of 21-24% that wood bundle is immersed solid content, and the impregnation time is 15-25s; Dry wood bundle; Wood bundle is mated formation fixing; To cold pressing sizing; Hot-press solidifying; Post-processed obtains bamboo willow recombinant material; The density of gained bamboo willow recombinant material is 0.7-1.0g/cm
3.The present invention can obtain performance gratifying bamboo willow recombinant material.
Description
Technical field
The present invention relates to a kind of bamboo willow recombinant material manufacturing process, specially for small diameter grade material and the brush wood of bamboo willow, and obtained recombinant material function admirable.
Background technology
Along with minimizing and the various countries gradually of global wildwood resource are to the pay attention to day by day of ecological environmental protection; contradiction between ever-increasing timber demand and relative inadequacy of resources is more and more darker, makes full use of small diameter grade material and brush wood then becomes one of important channel alleviating this contradiction.
1973, the technology that Australian Union's science and industrial research institute scientist JohnDouglasColeman propose " Scrimber " (Scrimberorvalwood) is imagined: the raw materials such as brush wood, small diameter grade material are rolled into a kind of longitudinal direction does not rupture, the wood bundle of lateral separation, then apply adhesive bond, and process the novel artificial Wood products of high strength.Because brush wood lower for value, small diameter grade material make full use of by Scrimber, to alleviating, current timber resources anxiety is significant, and therefore, many countries take part in the research of Scrimber.
China also carries out relatively early to the research of Scrimber, at twentieth century end, mainly develops Scrimber using domestic masson pine small diameter grade material and brush wood as raw material.Enter 21st century, utilize quick growth poplar wood, pine, birch, mao bamboon Restruction wood to become study hotspot.
Scrimber is developed so far the history of existing more than 20 years, but Scrimber product is commercially actually rare, this means the marketization of Scrimber technology, commercialization remains at bottleneck.Researcher of the present invention finds under study for action, and the subject matter of current Scrimber technology is: (1) product quality problem, as unstable in properties of product, easily go mouldy, easy to crack etc., (2) production cost problem, as long in the production cycle, energy consumption is high, etc.Researcher of the present invention finds after further study, and on the one hand, existing Scrimber manufacturing process is to the fresh rare considered critical of raw material variety, and also suitable concrete technology made to measure by the seldom special raw material for certain species, thus causes the problems referred to above to occur; On the other hand, the raw material that existing Scrimber manufacturing process adopts is comparatively traditional, lacks the exploration to novel timber and research, thus cannot form effectively breakthrough in product quality and production cost.
Known to researcher of the present invention, bamboo willow utilizes polynary genetic germplasm material by the willow new varieties of new and high technology composite-crossing, there is the outstanding properties advantages such as fast growth, adaptable, material is excellent, be the desirable seeds of cycle industrial material forest, saline-alkali soil forestation, lake beach afforestation, afforestation, environmental organism reparation, there is huge promotional value and vast potential for future development.The fast grow of bamboo willow and adaptability, determine that it has the potentiality being applied to timber industry.
At present, still do not exist specially for the recombinant material manufacturing process of bamboo willow, and researcher of the present invention finds in practical studies, directly apply mechanically existing various Scrimber manufacturing process and all bamboo willow cannot be made the gratifying recombinant material of performance, the Chinese invention patent (title: a kind of Scrimber and manufacture method thereof) of such as application number 200810041523.5 Authorization Notice No. CN101642924B, the Chinese invention patent (title: a kind of Scrimber and manufacture method thereof) of application number 200810114331.2 Authorization Notice No. CN101357470B, the Chinese invention patent application (title: a kind of manufacture method of outdoor recombination bamboo floorings) of application number 201110290903.4 application publication number CN102371608A, the Chinese invention patent application (title: a kind of method manufacturing Recombined bamboo wood decoration material) of application number 201210439930.8 application publication number CN102941612A, etc..
Summary of the invention
Technical problem to be solved by this invention is: overcome prior art Problems existing, provides a kind of bamboo willow recombinant material manufacturing process, successfully bamboo willow can be made the gratifying recombinant material of performance.
The technical scheme that the present invention solves its technical problem is as follows:
A kind of bamboo willow recombinant material manufacturing process, is characterized in that, comprise the following steps:
The first step, by the brush wood of bamboo willow and small diameter grade material peeling and along its longitudinal slitting make wood bundle; Wood bundle being dried under 102 DEG C of-115 DEG C of conditions moisture content is 4-7%;
Second step, by wood bundle immerse solid content be in the water-soluble phenolic resin adhesive of 21-24%, the impregnation time is 15-25s; Dry wood bundle;
3rd step, wood restrainted uniform spreading be loaded on default framed in, and tie up fixing;
4th step, being colded pressing by fixing wood bundle to shape to obtain pre-saw lumber, and pressure of colding pressing is 2-3MPa, and the time of colding pressing is 1-3min;
5th step, pre-saw lumber hot-press solidifying is obtained the pre-saw lumber of hot pressing, hot pressing time is 40-60s/mm, and hot pressing temperature is 120 DEG C-160 DEG C, and hot pressing pressure is 5-8MPa;
6th step, by the obtained bamboo willow recombinant material of pre-for hot pressing saw lumber process postmenstruation, post-processed comprises cutting edge, sanding, saw cut; The density of gained bamboo willow recombinant material is 0.7-1.0g/cm
3.
Researcher of the present invention finds after in depth practical studies, only manufacture in strict accordance with each step of above-mentioned manufacturing process and parameter thereof, the bamboo willow recombinant material that could finally obtain performance and meet national standard, national standard is GB/T28998-2012 " recombinant decorative material ".
Especially be worth stressing, existing Scrimber manufacturing process was once directly overlapped and was used for bamboo willow by researcher of the present invention in practical studies, but the performance of obtained recombinant material is difficult to satisfactory, researcher of the present invention is through going deep into practical studies further, finally the very crux of most critical is found: prior art is in order to make the even attached glue of wood bundle, and make glue can immerse in the crackle of wood bundle, the impregnation time (at least 1 minute) that normal employing is longer in impregnation step, can't consider to shorten the impregnation time, but researcher of the present invention finds, for bamboo willow, adopt the impregnation time of prior art that adhesive uptake can be made to increase, production time is elongated, increase production cost, and the performance of bamboo willow recombinant material does not reach optimal state, significantly the shortening impregnation time just can make bamboo willow recombinant material performance better, the impregnation time is defined as 15-25 second the most at last in the present invention, 58%-75% is shortened compared with the shortest impregnation time (namely 1 minute) of prior art, this is the achievement that researcher of the present invention breaks prior art conventional thought and just draws.On this basis, the present invention is by controlling the wood bundle moisture content before impregnation, and adopting first colds pressing in short-term carries out the operation of hot pressing again, and strictly controls each process parameter, just finally obtains the bamboo willow recombinant material that performance meets national standard.
The technical scheme that manufacturing process of the present invention is perfect is further as follows:
Preferably, in second step, during dry wood bundle, first wood is restrainted natural drying and be no more than 20% to moisture content, drier 40-70min at wood bundle is placed in 40 DEG C-50 DEG C, make wood bundle moisture content be 9-11%; In 5th step, direct release after hot-press solidifying.
Preferably, in second step, during dry wood bundle, wood is restrainted natural drying and is no more than 20% to moisture content; In 5th step, hot pressing time is 55-60s/mm, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 1.5-3h.
Researcher of the present invention finds through going deep into practical studies, adopts one of above two optimal technical scheme, can promote the performance of obtained bamboo willow recombinant material, make it exceed national standard.
More preferably, in the 6th step, the MOR of gained bamboo willow recombinant material is 56-104MPa, elastic modelling quantity is 8000-13600MPa.The MOR of gained bamboo willow recombinant material is at least 1.57 times of national standard, and elastic modelling quantity is at least 2.4 times of national standard, function admirable.
Preferably, in the first step, baking temperature is 102 DEG C, and being dried to moisture content is 5%; In second step, water-soluble phenolic resin adhesive solid content is 24%, and the impregnation time is 15s; In second step, after wood bundle impregnation, first wood being restrainted natural drying to moisture content is 20%, drier 40-70min at wood bundle is placed in 40 DEG C-50 DEG C, makes wood bundle moisture content be 9-11%; In 4th step, the time of colding pressing is 1min, and pressure of colding pressing is 2.0MPa; In 5th step, hot pressing temperature is 160 DEG C, and hot pressing time is 60s/mm, and hot pressing pressure is 5MPa, direct release after hot-press solidifying.
Preferably, in the first step, baking temperature is 115 DEG C, and being dried to moisture content is 4%; In second step, water-soluble phenolic resin adhesive solid content is 23.5%, and the impregnation time is 25s; In second step, after wood bundle impregnation, first wood being restrainted that natural drying to moisture content is no more than is 19%, drier 60min at wood bundle is placed in 45 DEG C, makes wood bundle moisture content be 10%; In 4th step, the time of colding pressing is 1min, and pressure of colding pressing is 2.0MPa; In 5th step, hot pressing temperature is 160 DEG C, and hot pressing time is 55s/mm, and hot pressing pressure is 8MPa, direct release after hot-press solidifying.
Preferably, in the first step, baking temperature is 108 DEG C, and being dried to moisture content is 7%; In second step, water-soluble phenolic resin adhesive solid content is 22%, and the impregnation time is 20s; In second step, after wood bundle impregnation, wood being restrainted natural drying to moisture content is 18%; In 4th step, the time of colding pressing is 3min, and pressure of colding pressing is 3.0MPa; In 5th step, hot pressing temperature is 120 DEG C, and hot pressing time is 55s/mm, and hot pressing pressure is 6MPa, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 1.5h.
Preferably, in the first step, baking temperature is 106 DEG C, and being dried to moisture content is 6%; In second step, water-soluble phenolic resin adhesive solid content is 23%, and the impregnation time is 18s; In second step, after wood bundle impregnation, wood being restrainted natural drying to moisture content is 17%; In 4th step, the time of colding pressing is 2min, and pressure of colding pressing is 2.5MPa; In 5th step, hot pressing temperature is 145 DEG C, and hot pressing time is 58s/mm, and hot pressing pressure is 7MPa, and after hot-press solidifying, hot press stops heating, keeps pressurized state and Temperature fall 3h release again.
Preferably, in the first step, baking temperature is 110 DEG C, and being dried to moisture content is 6.5%; In second step, water-soluble phenolic resin adhesive solid content is 21%, and the impregnation time is 23s; In second step, after wood bundle impregnation, wood being restrainted natural drying to moisture content is 16%; In 4th step, the time of colding pressing is 1.5min, and pressure of colding pressing is 2.8MPa; In 5th step, hot pressing temperature is 155 DEG C, and hot pressing time is 60s/mm, and hot pressing pressure is 6.5MPa, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 2h.
In addition, the present invention also provides the bamboo willow recombinant material adopting above-mentioned technique obtained, and the MOR of described bamboo willow recombinant material is 56-104MPa, elastic modelling quantity is 8000-13600MPa.
The present invention can obtain performance gratifying bamboo willow recombinant material, not only can increase the raw material type range of choice of Scrimber industry, also by raising to the raw-material demand of bamboo willow material, and then promote the extensive plantation of bamboo willow, all have great importance with promotion varieties in saline-alkali areas expanding economy to alleviation timber resources is in short supply.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.But the invention is not restricted to given example.
Embodiment 1
The bamboo willow recombinant material manufacturing process of the present embodiment comprises the following steps:
The first step, collection bamboo withy fork, small diameter grade material, after removing bark, send into timber longitudinal rolling strip cutter, make wood bundle, being dried to moisture content in 102 DEG C is 5%;
Second step, to be immersed in solid content be in the water-soluble phenolic resin adhesive of 24%, the impregnation time is 15s, then be first 20% by wood bundle natural drying to the moisture content of band glue, drier 40-70min at wood bundle is placed in 40 DEG C-50 DEG C, makes wood bundle moisture content be 9-11%;
3rd step, dress up slab by rift grain direction uniform spreading, tie in wood after orienting spreading bundle;
4th step, to be sent in press by the slab paved and carry out the sizing 1min that colds pressing, pressure of colding pressing is 2.0MPa;
5th step, carry out hot-press solidifying, hot pressing temperature is 160 DEG C, and hot pressing time is 60s/mm, and hot pressing pressure is 5MPa; Direct release after hot-press solidifying;
6th step, through post-processed such as cutting edge, sanding, saw cut, the bamboo willow recombinant material that obtained 20mm is thick, density is respectively 0.70,0.80,0.85,0.90 and 1.0g/cm
3, its performance indications and as shown in the table with the contrast of standard GB/T/T28998-2012 " recombinant decorative material " (recombinant decorative sawn timber):
Embodiment 2
The bamboo willow recombinant material manufacturing process of the present embodiment comprises the following steps:
The first step, collection bamboo withy fork, small diameter grade material, after removing bark, send into timber longitudinal rolling strip cutter, make wood bundle, being dried to moisture content in 115 DEG C is 4%;
Second step, to be immersed in solid content be in the water-soluble phenolic resin adhesive of 23.5%, and the impregnation time is 25s, is first then 19% by wood bundle natural drying to the moisture content of band glue, drier 60min at wood bundle is placed in 45 DEG C, makes wood bundle moisture content be 10%;
3rd step, dress up slab by rift grain direction uniform spreading, tie in wood after orienting spreading bundle;
4th step, to be sent in press by the slab paved and carry out the sizing 1min that colds pressing, pressure of colding pressing is 2.0MPa;
5th step, carry out hot-press solidifying, hot pressing temperature is 160 DEG C, and hot pressing time is 55s/mm, and hot pressing pressure is 8MPa; Direct release after hot-press solidifying;
6th step, through post-processed such as cutting edge, sanding, saw cut, the bamboo willow recombinant material that obtained 20mm is thick, density is 0.90g/cm
3, its performance indications and as shown in the table with the contrast of standard GB/T/T28998-2012 " recombinant decorative material " (recombinant decorative sawn timber):
| Performance indications | National standard | Embodiment 2 obtains bamboo willow recombinant material |
| Density | Nothing | 0.90g/cm 3 |
| Moisture content | Refer to standard | Qualified |
| MOR | ≥35MPa | 104MPa |
| The modulus of elasticity in static bending | ≥3200MPa | 13600MPa |
| Supine human body | Refer to standard | Qualified |
Embodiment 3
The bamboo willow recombinant material manufacturing process of the present embodiment comprises the following steps:
The first step, collection bamboo withy fork, small diameter grade material, after removing bark, send into timber longitudinal rolling strip cutter, make wood bundle, being dried to moisture content in 108 DEG C is 7%;
Second step, to be immersed in solid content be in the water-soluble phenolic resin adhesive of 22%, and the impregnation time is 20s, is then 18% by wood bundle natural drying to the moisture content of band glue;
3rd step, dress up slab by rift grain direction uniform spreading, tie in wood after orienting spreading bundle;
4th step, to be sent in press by the slab paved and carry out the sizing 3min that colds pressing, pressure of colding pressing is 3.0MPa;
5th step, put in flat-bed press and carry out hot-press solidifying, hot pressing time is 55s/mm, and hot pressing temperature is 120 DEG C, and hot pressing pressure is 6MPa; After hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 1.5h;
6th step, through post-processed such as cutting edge, sanding, saw cut, the bamboo willow recombinant material that obtained 20mm is thick, density is 0.90g/cm
3, its performance indications and as shown in the table with the contrast of standard GB/T/T28998-2012 " recombinant decorative material " (recombinant decorative sawn timber):
| Performance indications | National standard | Embodiment 3 obtains bamboo willow recombinant material |
| Density | Nothing | 0.90g/cm 3 |
| Moisture content | Refer to standard | Qualified |
| MOR | ≥35MPa | 98MPa |
| The modulus of elasticity in static bending | ≥3200MPa | 13300MPa |
| Supine human body | Refer to standard | Qualified |
Embodiment 4
The bamboo willow recombinant material manufacturing process of the present embodiment comprises the following steps:
The first step, collection bamboo withy fork, small diameter grade material, after removing bark, send into timber longitudinal rolling strip cutter, make wood bundle, being dried to moisture content in 106 DEG C is 6%;
Second step, to be immersed in solid content be in the water-soluble phenolic resin adhesive of 23%, and the impregnation time is 18s, is then 17% by wood bundle natural drying to the moisture content of band glue;
3rd step, dress up slab by rift grain direction uniform spreading, tie in wood after orienting spreading bundle;
4th step, to be sent in press by the slab paved and carry out the sizing 2min that colds pressing, pressure of colding pressing is 2.5MPa;
5th step, put in flat-bed press and carry out hot-press solidifying, hot pressing time is 58s/mm, and hot pressing temperature is 145 DEG C, and hot pressing pressure is 7MPa; After hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 3h;
6th step, through post-processed such as cutting edge, sanding, saw cut, the bamboo willow recombinant material that obtained 20mm is thick, density is 0.90g/cm
3, its performance indications and as shown in the table with the contrast of standard GB/T/T28998-2012 " recombinant decorative material " (recombinant decorative sawn timber):
| Performance indications | National standard | Embodiment 4 obtains bamboo willow recombinant material |
| Density | Nothing | 0.90g/cm 3 |
| Moisture content | Refer to standard | Qualified |
| MOR | ≥35MPa | 101MPa |
| The modulus of elasticity in static bending | ≥3200MPa | 12800MPa |
| Supine human body | Refer to standard | Qualified |
Embodiment 5
The bamboo willow recombinant material manufacturing process of the present embodiment comprises the following steps:
The first step, collection bamboo withy fork, small diameter grade material, after removing bark, send into timber longitudinal rolling strip cutter, make wood bundle, being dried to moisture content in 110 DEG C is 6.5%;
Second step, to be immersed in solid content be in the water-soluble phenolic resin adhesive of 21%, and the impregnation time is 23s, is then 16% by wood bundle natural drying to the moisture content of band glue;
3rd step, dress up slab by rift grain direction uniform spreading, tie in wood after orienting spreading bundle;
4th step, to be sent in press by the slab paved and carry out the sizing 1.5min that colds pressing, pressure of colding pressing is 2.8MPa;
5th step, put in flat-bed press and carry out hot-press solidifying, hot pressing time is 60s/mm, and hot pressing temperature is 155 DEG C, and hot pressing pressure is 6.5MPa; After hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 2h;
6th step, through post-processed such as cutting edge, sanding, saw cut, the bamboo willow recombinant material that obtained 20mm is thick, density is 0.90g/cm
3, its performance indications and as shown in the table with the contrast of standard GB/T/T28998-2012 " recombinant decorative material " (recombinant decorative sawn timber):
| Performance indications | National standard | Embodiment 5 obtains bamboo willow recombinant material |
| Density | Nothing | 0.90g/cm 3 |
| Moisture content | Refer to standard | Qualified |
| MOR | ≥35MPa | 92MPa |
| The modulus of elasticity in static bending | ≥3200MPa | 13000MPa |
| Supine human body | Refer to standard | Qualified |
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (8)
1. a bamboo willow recombinant material manufacturing process, is characterized in that, comprise the following steps:
The first step, by the brush wood of bamboo willow and small diameter grade material peeling and along its longitudinal slitting make wood bundle; Wood bundle being dried under 102 DEG C of-115 DEG C of conditions moisture content is 4-7%;
Second step, by wood bundle immerse solid content be in the water-soluble phenolic resin adhesive of 21-24%, the impregnation time is 15-25s; Dry wood bundle;
3rd step, wood restrainted uniform spreading be loaded on default framed in, and tie up fixing;
4th step, being colded pressing by fixing wood bundle to shape to obtain pre-saw lumber, and pressure of colding pressing is 2-3MPa, and the time of colding pressing is 1-3min;
5th step, pre-saw lumber hot-press solidifying is obtained the pre-saw lumber of hot pressing, hot pressing time is 40-60s/mm, and hot pressing temperature is 120 DEG C-160 DEG C, and hot pressing pressure is 5-8MPa;
6th step, by the obtained bamboo willow recombinant material of pre-for hot pressing saw lumber process postmenstruation, post-processed comprises cutting edge, sanding, saw cut; The density of gained bamboo willow recombinant material is 0.7-1.0g/cm
3;
Wherein, in second step, during dry wood bundle, first wood is restrainted natural drying to moisture content and be no more than 20% and >=19%, drier 40-70min at wood bundle is placed in 40 DEG C-50 DEG C, make wood bundle moisture content be 9-11%; In 5th step, direct release after hot-press solidifying;
Or, in second step, during dry wood bundle, wood is restrainted natural drying and is no more than 20% to moisture content; In 5th step, hot pressing time is 55-60s/mm, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 1.5-3h.
2. bamboo willow recombinant material manufacturing process according to claim 1, is characterized in that, in the 6th step, the MOR of gained bamboo willow recombinant material is 56-104MPa, elastic modelling quantity is 8000-13600MPa.
3. bamboo willow recombinant material manufacturing process according to claim 1, it is characterized in that, in the first step, baking temperature is 102 DEG C, and being dried to moisture content is 5%; In second step, water-soluble phenolic resin adhesive solid content is 24%, and the impregnation time is 15s; In second step, after wood bundle impregnation, first wood being restrainted natural drying to moisture content is 20%, drier 40-70min at wood bundle is placed in 40 DEG C-50 DEG C, makes wood bundle moisture content be 9-11%; In 4th step, the time of colding pressing is 1min, and pressure of colding pressing is 2.0MPa; In 5th step, hot pressing temperature is 160 DEG C, and hot pressing time is 60s/mm, and hot pressing pressure is 5MPa, direct release after hot-press solidifying.
4. bamboo willow recombinant material manufacturing process according to claim 1, it is characterized in that, in the first step, baking temperature is 115 DEG C, and being dried to moisture content is 4%; In second step, water-soluble phenolic resin adhesive solid content is 23.5%, and the impregnation time is 25s; In second step, after wood bundle impregnation, first wood being restrainted natural drying to moisture content is 19%, drier 60min at wood bundle is placed in 45 DEG C, makes wood bundle moisture content be 10%; In 4th step, the time of colding pressing is 1min, and pressure of colding pressing is 2.0MPa; In 5th step, hot pressing temperature is 160 DEG C, and hot pressing time is 55s/mm, and hot pressing pressure is 8MPa, direct release after hot-press solidifying.
5. bamboo willow recombinant material manufacturing process according to claim 1, it is characterized in that, in the first step, baking temperature is 108 DEG C, and being dried to moisture content is 7%; In second step, water-soluble phenolic resin adhesive solid content is 22%, and the impregnation time is 20s; In second step, after wood bundle impregnation, wood being restrainted natural drying to moisture content is 18%; In 4th step, the time of colding pressing is 3min, and pressure of colding pressing is 3.0MPa; In 5th step, hot pressing temperature is 120 DEG C, and hot pressing time is 55s/mm, and hot pressing pressure is 6MPa, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 1.5h.
6. bamboo willow recombinant material manufacturing process according to claim 1, it is characterized in that, in the first step, baking temperature is 106 DEG C, and being dried to moisture content is 6%; In second step, water-soluble phenolic resin adhesive solid content is 23%, and the impregnation time is 18s; In second step, after wood bundle impregnation, wood being restrainted natural drying to moisture content is 17%; In 4th step, the time of colding pressing is 2min, and pressure of colding pressing is 2.5MPa; In 5th step, hot pressing temperature is 145 DEG C, and hot pressing time is 58s/mm, and hot pressing pressure is 7MPa, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 3h.
7. bamboo willow recombinant material manufacturing process according to claim 1, it is characterized in that, in the first step, baking temperature is 110 DEG C, and being dried to moisture content is 6.5%; In second step, water-soluble phenolic resin adhesive solid content is 21%, and the impregnation time is 23s; In second step, after wood bundle impregnation, wood being restrainted natural drying to moisture content is 16%; In 4th step, the time of colding pressing is 1.5min, and pressure of colding pressing is 2.8MPa; In 5th step, hot pressing temperature is 155 DEG C, and hot pressing time is 60s/mm, and hot pressing pressure is 6.5MPa, and after hot-press solidifying, hot press stops heating, keeps pressurized state and release again after Temperature fall 2h.
8. adopt the bamboo willow recombinant material that described in any one of claim 1 to 7, bamboo willow recombinant material manufacturing process is obtained, the MOR of described bamboo willow recombinant material is 56-104MPa, elastic modelling quantity is 8000-13600MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608457.6A CN103612291B (en) | 2013-11-25 | 2013-11-25 | Bamboo willow recombinant material manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608457.6A CN103612291B (en) | 2013-11-25 | 2013-11-25 | Bamboo willow recombinant material manufacturing process |
Publications (2)
| Publication Number | Publication Date |
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| CN103612291A CN103612291A (en) | 2014-03-05 |
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| CN106363725B (en) * | 2016-09-06 | 2017-10-10 | 南京林业大学 | A kind of manufacture method of arbitrarily long cold pressing Recombined bamboo |
| CN106378839A (en) * | 2016-11-30 | 2017-02-08 | 黄河三角洲京博化工研究院有限公司 | Adhesive and paint-free recombinant wood |
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| CN101104286A (en) * | 2007-07-30 | 2008-01-16 | 浙江林学院 | Wood bunch recombining material and producing method thereof |
| CN101642924A (en) * | 2008-08-08 | 2010-02-10 | 仇峰 | Scrimber and manufacturing method thereof |
| CN101913174A (en) * | 2010-08-03 | 2010-12-15 | 中国林业科学研究院 | Small-diameter restructured structural woods and manufacture technology thereof |
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| JPH0671612A (en) * | 1992-08-25 | 1994-03-15 | Tsugio Aneobi | Bamboo-made contact bonded planar material and its production |
| JP2002254406A (en) * | 2001-03-01 | 2002-09-11 | Hashimoto Denki Co Ltd | End joint veneer and its manufacturing method |
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| CN101104286A (en) * | 2007-07-30 | 2008-01-16 | 浙江林学院 | Wood bunch recombining material and producing method thereof |
| CN101642924A (en) * | 2008-08-08 | 2010-02-10 | 仇峰 | Scrimber and manufacturing method thereof |
| CN101913174A (en) * | 2010-08-03 | 2010-12-15 | 中国林业科学研究院 | Small-diameter restructured structural woods and manufacture technology thereof |
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