CN113927685A - Unfolding process of green bamboo chips - Google Patents
Unfolding process of green bamboo chips Download PDFInfo
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- CN113927685A CN113927685A CN202111355837.4A CN202111355837A CN113927685A CN 113927685 A CN113927685 A CN 113927685A CN 202111355837 A CN202111355837 A CN 202111355837A CN 113927685 A CN113927685 A CN 113927685A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/06—Softening or hardening of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a unfolding process of bamboo chips with green bamboo, belonging to the technical field of bamboo processing and comprising the following steps: segmenting and slicing the bamboo into bamboo chips with cambered surfaces in cross sections; the bamboo chips after the bamboo chips are softened by pressurization and heating are unfolded by constant arc and constant thickness; then, carrying out double-side protection gradual-opening flattening under the heat preservation condition until the bamboo chips are completely flattened to obtain the bamboo board; and (3) continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the green bamboo board finished product. According to the unfolding process of the green bamboo strips, the green bamboo strips can be unfolded on the premise of not carrying out chute opening and green shaving, the problems of cracking and rebounding cannot occur in the unfolding process, the obtained green bamboo boards are smooth and flat, the obtained green bamboo boards have the characteristic of high strength, and the application range and the field of bamboo materials are further widened by the aid of the unfolding process.
Description
Technical Field
The invention belongs to the technical field of bamboo processing, and particularly relates to a unfolding process of green bamboo chips.
Background
Bamboo has become an important wood substitute material in many industries because of its high growth rate, high regeneration capacity, and excellent physical properties. The method is implemented by replacing wood with bamboo in part of industries, can effectively relieve the contradiction between supply and demand of wood in China, and can also relieve the problems of carbon emission, ecological environment and the like.
The bamboo is cylindrical under natural growth, still has certain radian behind the bamboo tube burst of cutting into the section, needs to expand (exhibition flat) it before carrying out follow-up processing. The part of the bamboo tube close to the outer layer is called the outer bamboo green, the part close to the inner layer is called the tabasheer, and the fiber density and hardness of the bamboo are gradually reduced from the outer bamboo green surface to the tabasheer surface. In the process of unfolding the bamboo chips, if the bamboo chips are directly unfolded, the problem of cracking can occur due to high hardness of bamboo green, and due to the special longitudinal fiber structure of the bamboo, the cracking of the whole (whole) bamboo chip can be caused by local cracking. In order to solve the problem, a chute or a nail hole is arranged on one side of bamboo tabasheer in the unfolding processing process at present; or planing bamboo green before flattening, and spreading the bamboo chips without green. The fiber contained in the bamboo green part with the thickness of 2mm accounts for 70% of the whole bamboo, and has high fiber density, hardness and strength, if the bamboo green part can be applied together without planing, the waste of bamboo can be effectively reduced, and the mechanical property of the obtained product can be remarkably improved. How to unfold the bamboo strips with the green strips on the premise of not opening the inclined grooves is a problem to be solved urgently at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problems to be solved by the invention are as follows: provides an unfolding process which does not need to be provided with a chute and can flatten the green bamboo chips.
In order to solve the technical problems, the invention adopts the technical scheme that: the unfolding process of the green bamboo chips comprises the following steps:
step 1, segmenting bamboos to obtain bamboo tubes, and cutting the bamboo tubes into bamboo chips with cambered surfaces in cross sections;
step 2, pressurizing and heating the bamboo chips for softening, and planing off tabasheer after the softened bamboo chips are unfolded in an equal-arc fixed-thickness mode;
step 3, performing double-side protection gradual-opening flattening on the unfolded bamboo chips with the constant arc thickness in the step 2 under the condition of heat preservation until the bamboo chips are completely flattened to obtain a bamboo board;
and 4, continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the finished bamboo boards with green bamboo strips.
The invention has the beneficial effects that: according to the unfolding process of the green bamboo strips, the green bamboo strips can be unfolded on the premise of not carrying out chute opening and green shaving, the problems of cracking and rebounding cannot occur in the unfolding process, the obtained green bamboo boards are smooth and flat, the obtained green bamboo boards have the characteristic of high strength, and the application range and the field of bamboo materials are further widened by the aid of the unfolding process. In the unfolding process, the heating and pressurizing softening is adopted, compared with the traditional heating softening, the steam pressure and the temperature are increased, the softening time can be obviously shortened, the efficiency is higher, the softening effect is improved, and the problem of cracking in the subsequent unfolding process is avoided; after the equal-arc thickness-fixing unfolding treatment, the uniformity of the thickness of the bamboo chips is ensured, a foundation is provided for the subsequent double-side protection gradual-opening flattening, and the problem of uneven stress caused by uneven thickness is avoided; the double-side protection gradual-opening flattening is carried out under the heat preservation condition, so that the problems of springback and cracking can be effectively avoided; the green bamboo board of area is because stress is great, and the fracture that the cooling treatment of cooling down in succession can avoid the sudden cooling to cause, and the green bamboo board of area after the cooling is dry under the weighing condition, has guaranteed the homogeneous of taking the different positions moisture content of green bamboo board, makes the flat board of exhibition after the stoving not have the bending, and no deformation, and can not kick-back.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.
The invention provides a unfolding process of green bamboo strips, which comprises the following steps:
step 1, segmenting bamboos to obtain bamboo tubes, and cutting the bamboo tubes into bamboo chips with cambered surfaces in cross sections;
step 2, pressurizing and heating the bamboo chips for softening, and planing off tabasheer after the softened bamboo chips are unfolded in an equal-arc fixed-thickness mode;
step 3, performing double-side protection gradual-opening flattening on the unfolded bamboo chips with the constant arc thickness in the step 2 under the condition of heat preservation until the bamboo chips are completely flattened to obtain a bamboo board;
and 4, continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the finished bamboo boards with green bamboo strips.
From the above description, the beneficial effects of the present invention are: according to the unfolding process of the green bamboo strips, the green bamboo strips can be unfolded on the premise of not carrying out chute opening and green shaving, the problems of cracking and rebounding cannot occur in the unfolding process, and the obtained green bamboo boards are smooth and flat; the process does not need to provide a chute or a nail hole in the unfolding process, and also does not need to treat bamboo joints, so that the treatment steps are reduced, and the investment cost is effectively saved. In the unfolding process, the problem of cracking in the processing process can be effectively reduced by softening and equal-arc constant-thickness unfolding, but the inner layer of the green bamboo strip is stretched, the outer layer of the green bamboo strip, especially the green part, is extruded, so that great internal stress is generated, and the phenomenon of rebound (rebound) in subsequent processing can be caused; according to the invention, the problem of internal stress generated in the steps can be effectively balanced through subsequent protection, gradual-opening, leveling, matched weight pressing and drying under the condition of heat preservation, the problem of resilience in the processing process and after the finished product is processed is avoided, the steps are buckled with each other and matched with each other, the smooth unfolding of the green bamboo strips is ensured, and the problems of raw material waste and processing cost increase caused by cracking, resilience and the like are avoided.
Further, in the step 1, the diameter of the bamboo tube is 60-150mm, and the bamboo tube is cut into 3-5 pieces of bamboo chips.
Further, the heating softening conditions in the step 2 are as follows: the pressure is 0.8-1.3MPa, the temperature is 160-200 ℃, and the time is 3-10 min.
Further, the constant arc thickness setting unfolding in the step 2 is as follows: and pressing the softened bamboo chips into an equal arc shape by using an arc roller, and then performing equal-thickness processing by using an arc cutter.
From the above description, the equal-thickness processing can ensure that two surfaces of the bamboo board can be completely removed from the equipment in the subsequent double-surface protection involute flattening process. The problem of cracking caused by uneven stress is avoided.
Further, the temperature keeping condition in the step 3 is 80-100 ℃; the double-sided protection involute flattening is through a plurality of suppression devices gradual flattening, the suppression device includes top board and holding down plate, be equipped with the clearance between top board and the holding down plate, it is a plurality of the radian in the clearance of suppression device reduces in proper order, and the clearance of last suppression device is the plane.
From the above description, it can be known that the heat preservation treatment in the double-sided protection involute flattening process is that the pipe fitting is located, and if the heat preservation treatment is carried out at normal temperature or at higher temperature, the cracking phenomenon can occur in the double-sided protection involute flattening process.
Further, in the step 4, the temperature is continuously reduced from 100 ℃ to 25 ℃ under normal pressure. The cooling rate was 25 ℃/h.
The description shows that the green bamboo board is different from the common green bamboo board which is subjected to yellow removal or is provided with the chute and the nail hole, the green bamboo board can crack if being directly cooled, and the green bamboo board needs to be gradually cooled within a certain temperature range, so that the cracking problem can be effectively avoided.
Further, the conditions of the pressure reshaping drying in the step 4 are as follows: the weight is 1000-1200kg, and the drying temperature is 30-60 ℃.
According to the description, the reshaping drying is to press one side of the bamboo board, the pressure can ensure that the moisture content of each part of the bamboo chip is uniform, the internal stress generated in the softening, arc-variable and thickness-fixed unfolding processes can be effectively eliminated, and the effect of no rebound after drying is achieved; drying time, raise the efficiency can not be in order to shorten among the drying process, promote drying temperature tastily, and too high drying temperature can lead to the partly take green bamboo board to dry and place the rebound problem can appear after a period of time.
Example 1:
the unfolding process of the green bamboo chips comprises the following steps:
step 1, segmenting bamboos to obtain bamboo tubes, and cutting the bamboo tubes into bamboo chips with cambered surfaces in cross sections;
the diameter of the bamboo tube is 60-90mm, and the bamboo tube is cut into 3 pieces of bamboo chips;
step 2, pressurizing and heating the bamboo chips for softening, and planing off tabasheer after the softened bamboo chips are unfolded in an equal-arc fixed-thickness mode;
conditions for softening by heating under pressure: the pressure is 1.2MPa, the temperature is 200 ℃, and the time is 3 min;
the constant arc thickness-fixing development is as follows: pressing the softened bamboo chips into an equal arc shape by using an arc roller, and then performing equal-thickness processing by using an arc cutter;
step 3, performing double-side protection gradual-opening flattening on the bamboo chips subjected to equal-arc constant-thickness unfolding in the step 2 under the heat preservation condition of 100 ℃ until the bamboo chips are completely flattened to obtain a bamboo board;
the double-side protection involute flattening device is gradually flattened by a plurality of pressing devices, each pressing device comprises an upper pressing plate and a lower pressing plate, a gap is formed between the upper pressing plate and the lower pressing plate, and the radian of the gaps of the plurality of pressing devices is sequentially reduced;
and 4, continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the finished bamboo boards with green bamboo strips.
Continuously cooling to the temperature of between 100 and 25 ℃;
the conditions of weight setting and drying are as follows: the weight is 1200kg, and the drying temperature is 40 ℃.
Example 2:
the unfolding process of the green bamboo chips comprises the following steps:
step 1, segmenting bamboos to obtain bamboo tubes, and cutting the bamboo tubes into bamboo chips with cambered surfaces in cross sections;
the diameter of the bamboo tube is 90-120mm, and the bamboo tube is cut into 4 pieces of bamboo chips;
step 2, pressurizing and heating the bamboo chips for softening, and planing off tabasheer after the softened bamboo chips are unfolded in an equal-arc fixed-thickness mode;
conditions for softening by heating under pressure: the pressure is 0.8MPa, the temperature is 180 ℃, and the time is 10 min;
the constant arc thickness-fixing development is as follows: pressing the softened bamboo chips into an equal arc shape by using an arc roller, and then performing equal-thickness processing by using an arc cutter;
step 3, performing double-side protection gradual-opening flattening on the bamboo chips subjected to equal-arc constant-thickness unfolding in the step 2 under the condition of heat preservation at 90 ℃ until the bamboo chips are completely flattened to obtain a bamboo board;
the double-side protection involute flattening device is gradually flattened by a plurality of pressing devices, each pressing device comprises an upper pressing plate and a lower pressing plate, a gap is formed between the upper pressing plate and the lower pressing plate, and the radian of the gaps of the plurality of pressing devices is sequentially reduced;
and 4, continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the finished bamboo boards with green bamboo strips.
Continuously cooling to the temperature of between 100 and 25 ℃;
the conditions of weight setting and drying are as follows: the weight is 1000kg, and the drying temperature is 60 ℃.
Example 3:
the unfolding process of the green bamboo chips comprises the following steps:
step 1, segmenting bamboos to obtain bamboo tubes, and cutting the bamboo tubes into bamboo chips with cambered surfaces in cross sections;
the diameter of the bamboo tube is 120-150mm, and the bamboo tube is cut into 5 pieces of bamboo chips;
step 2, pressurizing and heating the bamboo chips for softening, and planing off tabasheer after the softened bamboo chips are unfolded in an equal-arc fixed-thickness mode;
conditions for softening by heating under pressure: the pressure is 1.3MPa, the temperature is 160 ℃, and the time is 7 min;
the constant arc thickness-fixing development is as follows: pressing the softened bamboo chips into an equal arc shape by using an arc roller, and then performing equal-thickness processing by using an arc cutter;
step 3, performing double-side protection gradual-opening flattening on the bamboo chips subjected to equal-arc constant-thickness unfolding in the step 2 under the condition of heat preservation at 80 ℃ until the bamboo chips are completely flattened to obtain a bamboo board;
the double-side protection involute flattening device is gradually flattened by a plurality of pressing devices, each pressing device comprises an upper pressing plate and a lower pressing plate, a gap is formed between the upper pressing plate and the lower pressing plate, and the radian of the gaps of the plurality of pressing devices is sequentially reduced;
and 4, continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the finished bamboo boards with green bamboo strips.
Continuously cooling to the temperature of between 100 and 25 ℃;
the conditions of weight setting and drying are as follows: the weight is 1100kg, and the drying temperature is 30 ℃.
Comparative example 1:
comparative example 1 differs from example 1 only in that the softening operation in step 2 of comparative example 1 differs. The bamboo chips of comparative example 1 were softened by heating at 180 ℃ for 30 min.
Comparative example 2:
the difference between the comparative example 2 and the example 1 is that the step 3 of the comparative example 2 is not subjected to heat preservation, namely, the double-sided protection gradual-opening flattening is carried out under the conditions of normal temperature (about 25 ℃) and normal pressure until the bamboo chips are completely flattened, and the step 4 is directly carried out without cooling, and then the steps of pressing, reshaping and drying are carried out.
Comparative example 3:
comparative example 4 is different from example 1 only in that comparative example 3 does not perform equal-arc thickness-fixing unfolding and removal of tabasheer, and performs double-sided protection involute flattening directly under the condition of heat preservation at 100 ℃ after softening by pressurizing and heating.
Comparative example 4:
comparative example 4 differs from example 1 only in that the cooling temperature in the environment in step 4 of comparative example 4 is kept at 25 ℃ rather than being gradually reduced from 100 ℃ to 25 ℃.
The number of the bamboo boards with springback and cracking and the number of qualified finished products (marked as finished products) in the processing process are counted, and the result of the calculated qualified rate is shown in table 1.
TABLE 1
The bamboo boards of examples 1-3 were randomly drawn and subjected to performance tests with the same thickness of the bamboo boards without green, and the results are shown in Table 2.
TABLE 2
In conclusion, the unfolding process of the green bamboo strips provided by the invention can unfold the green bamboo strips on the premise of not carrying out chute opening and green shaving, and the problems of cracking and rebounding do not occur in the unfolding process, so that the obtained green bamboo boards are smooth and flat, have the characteristic of high strength, can be applied to the field that the existing bamboo boards cannot be utilized due to insufficient strength and hardness, and further broadens the application range and the field of bamboo wood;
according to the unfolding process of the green bamboo chips, the green bamboo chips are softened by pressurizing and heating in the unfolding process, compared with the traditional heating softening, the steam pressure and the temperature are increased, the softening time can be obviously shortened, the efficiency is higher, the softening effect is improved, and the problem of cracking in the subsequent unfolding process is solved; after the equal-arc thickness-fixing unfolding treatment, the uniformity of the thickness of the bamboo chips is ensured, a foundation is provided for the subsequent double-side protection gradual-opening flattening, and the problem of uneven stress caused by uneven thickness is avoided; the double-side protection gradual-opening flattening is carried out under the heat preservation condition of 80-100 ℃, so that the problems of springback and cracking can be effectively avoided; the green bamboo board is relatively high in stress, cracking caused by sudden cooling can be avoided through continuous cooling treatment, the cooled green bamboo board is dried under the condition that the weight is 1000 plus 1200kg, the uniformity of moisture content of different positions of the green bamboo board is guaranteed, and the dried flat board is free of bending, deformation and rebound;
the unfolding process of the green bamboo chips provided by the invention has low requirements on equipment, does not need to be matched with a process to specially add new equipment, and is suitable for popularization and application in enterprises of different scales.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.
Claims (7)
1. The unfolding process of the green bamboo chips is characterized by comprising the following steps of:
step 1, segmenting bamboos to obtain bamboo tubes, and cutting the bamboo tubes into bamboo chips with cambered surfaces in cross sections;
step 2, pressurizing and heating the bamboo chips for softening, and planing off tabasheer after the softened bamboo chips are unfolded in an equal-arc fixed-thickness mode;
step 3, performing double-side protection gradual-opening flattening on the unfolded bamboo chips with the constant arc thickness in the step 2 under the condition of heat preservation until the bamboo chips are completely flattened to obtain a bamboo board;
and 4, continuously cooling the bamboo boards, then carrying out weight-pressing, shaping and drying until the moisture content is 6-10%, and then fixing the width and trimming to obtain the finished bamboo boards with green bamboo strips.
2. The unfolding process of green bamboo chips as claimed in claim 1, wherein in the step 1, the diameter of the bamboo tube is 60-150mm, and the bamboo tube is cut into 3-5 bamboo chips.
3. The green bamboo strip unfolding process according to claim 1, wherein the heating softening conditions in step 2 are as follows: the pressure is 0.8-1.3MPa, the temperature is 160-200 ℃, and the time is 3-10 min.
4. The unfolding process of green bamboo strips according to claim 1, wherein the constant arc thickness-fixing unfolding in the step 2 is as follows: and pressing the softened bamboo chips into an equal arc shape by using an arc roller, and then processing the bamboo chips with equal thickness by using an arc cutter.
5. The green bamboo strip unfolding process according to claim 1, wherein the temperature keeping condition in the step 3 is 80-100 ℃; the double-sided protection involute flattening is through a plurality of suppression devices gradual flattening, the suppression device includes top board and holding down plate, be equipped with the clearance between top board and the holding down plate, it is a plurality of the radian in suppression device's clearance reduces in proper order.
6. The process for unfolding bamboo strips with green bamboo chips as claimed in claim 1, wherein the continuous cooling in step 4 is from 100 ℃ to 25 ℃.
7. The unrolling process for bamboo strips with green bamboo strips as claimed in claim 1, wherein the conditions of press reshaping drying in step 4 are: the weight is 1000-1200kg, and the drying temperature is 30-60 ℃.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CN202111355837.4A CN113927685A (en) | 2021-11-16 | 2021-11-16 | Unfolding process of green bamboo chips |
AU2022389511A AU2022389511A1 (en) | 2021-11-16 | 2022-10-27 | Green bamboo veneer and manufacturing process thereof |
CA3235217A CA3235217A1 (en) | 2021-11-16 | 2022-10-27 | Bamboo outer skin-retaining bamboo veneer and preparation process thereof |
EP22894597.8A EP4393670A1 (en) | 2021-11-16 | 2022-10-27 | Green bamboo veneer and manufacturing process thereof |
PCT/CN2022/127989 WO2023088060A1 (en) | 2021-11-16 | 2022-10-27 | Green bamboo veneer and manufacturing process thereof |
US18/635,182 US20240253263A1 (en) | 2021-11-16 | 2024-04-15 | Bamboo outer skin-retaining bamboo veneer and preparation process thereof |
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CN202111355837.4A CN113927685A (en) | 2021-11-16 | 2021-11-16 | Unfolding process of green bamboo chips |
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Cited By (4)
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CN114683361A (en) * | 2022-04-27 | 2022-07-01 | 浙江味老大工贸有限公司 | Formaldehyde-free anti-bulging-cracking flattening bamboo chopping board and preparation method thereof |
CN115503063A (en) * | 2022-09-14 | 2022-12-23 | 国际竹藤中心 | Processing method of bamboo flattening material with integrated drying and flattening |
WO2023088060A1 (en) * | 2021-11-16 | 2023-05-25 | 龙竹科技集团股份有限公司 | Green bamboo veneer and manufacturing process thereof |
CN116277341A (en) * | 2023-02-07 | 2023-06-23 | 湖南省佳竹盈竹木有限公司 | Equipment for winding and coiling bamboo boards and bamboo board winding and coiling processing technology |
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CN112873456A (en) * | 2021-03-26 | 2021-06-01 | 南京林业大学 | Green bamboo flattening device and method |
CN113370332A (en) * | 2021-06-11 | 2021-09-10 | 龙竹科技集团股份有限公司 | Full bamboo unfolding process |
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CN103128831A (en) * | 2011-11-30 | 2013-06-05 | 钱安国 | Manufacture method for bamboo chip used for green-retaining process |
CN103878850A (en) * | 2014-04-02 | 2014-06-25 | 福建农林大学 | Split arc bamboo chips and manufacturing method thereof |
CN112873456A (en) * | 2021-03-26 | 2021-06-01 | 南京林业大学 | Green bamboo flattening device and method |
CN113370332A (en) * | 2021-06-11 | 2021-09-10 | 龙竹科技集团股份有限公司 | Full bamboo unfolding process |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2023088060A1 (en) * | 2021-11-16 | 2023-05-25 | 龙竹科技集团股份有限公司 | Green bamboo veneer and manufacturing process thereof |
CN114683361A (en) * | 2022-04-27 | 2022-07-01 | 浙江味老大工贸有限公司 | Formaldehyde-free anti-bulging-cracking flattening bamboo chopping board and preparation method thereof |
CN115503063A (en) * | 2022-09-14 | 2022-12-23 | 国际竹藤中心 | Processing method of bamboo flattening material with integrated drying and flattening |
CN115503063B (en) * | 2022-09-14 | 2023-11-07 | 国际竹藤中心 | Processing method of bamboo flattening material integrating drying and flattening |
CN116277341A (en) * | 2023-02-07 | 2023-06-23 | 湖南省佳竹盈竹木有限公司 | Equipment for winding and coiling bamboo boards and bamboo board winding and coiling processing technology |
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