CN114536489A - Shaving board manufacturing process - Google Patents
Shaving board manufacturing process Download PDFInfo
- Publication number
- CN114536489A CN114536489A CN202210229603.3A CN202210229603A CN114536489A CN 114536489 A CN114536489 A CN 114536489A CN 202210229603 A CN202210229603 A CN 202210229603A CN 114536489 A CN114536489 A CN 114536489A
- Authority
- CN
- China
- Prior art keywords
- bamboo
- layer material
- shaving board
- surface layer
- core layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 85
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 85
- 241001330002 Bambuseae Species 0.000 claims abstract description 85
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 85
- 239000011425 bamboo Substances 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 54
- 239000012792 core layer Substances 0.000 claims abstract description 26
- 239000002344 surface layer Substances 0.000 claims abstract description 26
- 238000007731 hot pressing Methods 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 238000005498 polishing Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000002023 wood Substances 0.000 abstract description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011162 core material Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 108010082495 Dietary Plant Proteins Proteins 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a shaving board manufacturing process, which comprises the following steps: cutting fresh bamboo raw materials into bamboo chips; slicing the cut bamboo chips into bamboo wood shavings; drying the bamboo shavings; screening the dried bamboo shavings, and dividing the bamboo shavings into surface layer materials and core layer materials; applying an aldehyde-free adhesive to the surface layer material and the core layer material; paving the surface layer material and the core layer material which are subjected to glue application to form a plate blank, wherein the core layer material is positioned between the two surface layer materials; carrying out hot pressing on the plate blank to form a bamboo shaving board; and sawing, sorting and warehousing the bamboo shaving board subjected to hot pressing. The bamboo shaving board which has high strength, low cost and no aldehyde and is environment-friendly can be obtained through the steps, and the bamboo shaving board is used in the field of board manufacturing.
Description
Technical Field
The invention relates to the field of plate manufacturing, in particular to a shaving board manufacturing process.
Background
China is a state with deficient forest resources. According to the 8 th forest resource clearing statistics, the total forest area of China is 2.08 hundred million hm2Wherein the area of the artificial forest is 0.69 hundred million hm2All people have forest reserves less than 13m3Far below the world average level. With the continuous improvement of industrialization degree and the gradual reduction of natural resources, the production line of the shaving board is increased year by year, so that forest resources for producing the shaving board are very deficient, and the problem of formaldehyde release is faced in the traditional shaving board production.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a manufacturing process of the shaving board, which adopts bamboo as a raw material, relieves the shortage of forest resources and can produce the shaving board without aldehyde and with higher strength.
A process for manufacturing a particle board according to an embodiment of the first aspect of the invention comprises the steps of:
cutting fresh bamboo raw materials into bamboo chips;
slicing the cut bamboo chips into bamboo shavings;
drying the bamboo shavings by a dryer;
screening the dried bamboo shavings, and dividing the bamboo shavings into surface layer materials and core layer materials;
applying an aldehyde-free adhesive to the surface layer material and the core layer material;
paving the surface layer material and the core layer material which are subjected to glue application to form a plate blank, wherein the core layer material is positioned between the two surface layer materials;
carrying out hot pressing on the plate blank to form a bamboo shaving board;
and sawing, sorting and warehousing the bamboo shaving board subjected to hot pressing.
The manufacturing process of the shaving board disclosed by the embodiment of the invention at least has the following beneficial effects: cutting a fresh bamboo raw material into bamboo chips, then slicing the cut bamboo chips into bamboo shavings, drying the bamboo shavings by a dryer, sieving the dried bamboo shavings, dividing the bamboo shavings into surface layer materials and core layer materials, applying a formaldehyde-free adhesive to the surface layer materials and the core layer materials, paving the surface layer material and the core layer material which are glued to form a plate blank, wherein the core layer material is positioned between the two surface layer materials, carrying out hot pressing on the plate blank to form a bamboo shaving board, carrying out saw cutting, sorting and warehousing on the hot-pressed bamboo shaving board, thereby obtaining the shaving board, the shaving board adopts bamboo as raw material, effectively relieves the shortage of forest resources, meanwhile, the bamboo shaving board has high strength, the cost of the bamboo raw materials is low, and the formaldehyde emission of the manufactured shaving board is extremely low because the formaldehyde-free adhesive is used.
According to some embodiments of the invention, the bamboo chips have a length of 25 mm to 35 mm, a width of 15 mm to 25 mm and a thickness of 5 mm to 15 mm.
According to some embodiments of the invention, the bamboo strands have a length of 10 mm to 20 mm, a width of 5 mm to 10 mm and a thickness of 0.2 mm to 0.5 mm.
According to some embodiments of the invention, the step of drying the bamboo shavings uses a rotor dryer, an inlet temperature of the rotor dryer is 220 to 280 degrees celsius, an outlet temperature of the rotor dryer is 100 to 130 degrees celsius, and a moisture content of the dried bamboo shavings is one to three percent.
According to some embodiments of the invention, the aldehyde-free adhesive is present in an amount of 35 kilograms per cubic meter.
According to some embodiments of the invention, the ratio of the core material to the skin material in the slab is 3: 2.
according to some embodiments of the invention, the step of hot pressing the mat to form the bamboo particle board uses a continuous hot press, the continuous hot press having a hot pressing temperature of 190 ℃ to 245 ℃, a hot pressing speed of 180 mm/s to 210 mm/s, and a hot pressing pressure of 0.5bar to 4.0 bar.
According to some embodiments of the invention, the dried surface layer material and core layer material are uniformly ground by a grinding machine.
According to some embodiments of the invention, the process for manufacturing a particle board further comprises the steps of:
and pre-pressing the laid plate blank to form a pre-pressed plate.
According to some embodiments of the invention, the process for manufacturing a particle board further comprises the steps of:
and turning the board, stacking, placing, preserving, sanding and polishing the hot-pressed bamboo shaving board.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
figure 1 is a flow diagram of a particle board manufacturing process according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as the directions of up, down, front, rear, left, right, etc., may be based on those shown in the drawings, only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present numbers, and larger, smaller, inner, etc. are understood as including the present numbers. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the invention provides a shaving board manufacturing process, which comprises the following steps:
s100, cutting a fresh bamboo raw material into bamboo chips;
s200, slicing the cut bamboo chips into bamboo shavings;
s300, drying the bamboo shavings;
s400, screening the dried bamboo shavings, and dividing the bamboo shavings into surface layer materials and core layer materials;
s500, applying an aldehyde-free adhesive to the surface layer material and the core layer material;
s600, paving the surface layer material and the core layer material which are subjected to glue application to form a plate blank, wherein the core layer material is positioned between the two surface layer materials;
s700, carrying out hot pressing on the board blank to form a bamboo shaving board;
and S800, sawing the hot-pressed bamboo shaving board, sorting and warehousing.
Because the bamboo raw materials can be because the characteristic of bamboo itself, there may be the bamboo raw materials partially long, so before cutting the bamboo raw materials, can carry out the cutting off to the bamboo raw materials, make the bamboo raw materials become the subsection, again because bamboo raw materials itself can have cylindricly, be unfavorable for cutting work, so after cutting off the process, can carry out the crushing to the bamboo raw materials, make the bamboo raw materials follow cylindricly, become the fritter that does benefit to cutting work, make cylindric bamboo raw materials can become to have certain radian cubic, thereby can carry out cutting work on next step smoothly. In the screening of the bamboo shavings, the smaller shavings are surface layer materials, and the larger ones are core layer materials. The bamboo shaving board with high strength can be obtained through all the steps, the static bending strength is 19.55Mpa, the surface bonding strength is 1.03Mpa, the internal bonding strength is 0.72Mpa, the board surface screw holding force is 1842N, the board edge screw holding force is 1501N, and the requirements of partial heavy-load wood shaving boards can be met.
And the traditional production of the shaving board faces the problem of formaldehyde, and because the formaldehyde-free adhesive is used, the formaldehyde emission of the bamboo shaving board is extremely low, the formaldehyde content of the bamboo shaving board is 0.28 milligram per hectogram which is lower than 9 milligram per hectogram of E1 level national standard of the wood shaving board and 8 milligram per hectogram of E1 level national standard of the bamboo shaving board detected by a perforated extraction method, and the formaldehyde emission is favorably 0.04 milligram per liter detected by a drier method.
It is understood that the aldehyde-free adhesive may be MDI glue, i.e., diphenylmethane diisocyanate glue, or an aldehyde-free adhesive prepared from polyvinyl alcohol, xanthan gum, vinyl acetate emulsion, starch, vegetable protein, DBP plasticizer, DOP plasticizer, and MDI glue.
In some embodiments of the invention, the bamboo chips have a length of 25 mm to 35 mm, a width of 15 mm to 25 mm, and a thickness of 5 mm to 15 mm.
In some embodiments of the present invention, the bamboo shavings have a length of 10 mm to 20 mm, a width of 5 mm to 10 mm, and a thickness of 0.2 mm to 0.5 mm.
In some embodiments of the present invention, the step of drying the bamboo shavings uses a rotor dryer, an inlet temperature of the rotor dryer is 220 to 280 ℃, an outlet temperature of the rotor dryer is 100 to 130 ℃, and a moisture content of the dried bamboo shavings is one to three percent.
In some embodiments of the invention, the amount of aldehyde-free adhesive is 35 kilograms per cubic meter.
In some embodiments of the invention, the ratio of core material to skin material in the slab is 3: 2.
in some embodiments of the invention, the step of hot pressing the board blank to form the bamboo-based particle board uses a continuous hot press, the continuous hot press has a hot pressing temperature of 190 ℃ to 245 ℃, a hot pressing speed of 180 mm/s to 210 mm/s, and a hot pressing pressure of 0.5bar to 4.0 bar.
In some embodiments of the present invention, the dried surface layer material and core layer material may be further polished uniformly by a polishing machine.
Because of the inconsistency of the shape parameters between each of the shavings, the shavings can be ground using a grinder. So that the shape of each strand of the surface layer material is relatively uniform and each strand of the core layer material is relatively uniform.
In some embodiments of the present invention, the method further comprises the following steps:
and S610, pre-pressing the laid plate blank to form a pre-pressed plate.
The shape of the laid plate blank can be fixed in advance by pre-pressing, so that the subsequent hot-pressing process is facilitated.
In some embodiments of the present invention, the method further comprises the following steps:
and S710, turning the board of the bamboo shaving board after hot pressing, stacking, placing, curing, sanding and polishing.
Turn over the board and can guarantee that each face of bamboo shaving board can both succeed in stereotyping, the stack and place the health preserving and can further accomplish the stereotyping and the completion of bamboo shaving board and purify, carry out the pleasing to the eye degree that the polishing can improve the shaving board outward appearance.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A shaving board manufacturing process is characterized by comprising the following steps:
cutting fresh bamboo raw materials into bamboo chips;
slicing the cut bamboo chips into bamboo shavings;
drying the bamboo shavings;
screening the dried bamboo shavings to obtain surface layer materials and core layer materials;
applying an aldehyde-free adhesive to the surface layer material and the core layer material;
paving the surface layer material and the core layer material which are subjected to glue application to form a plate blank, wherein the core layer material is positioned between the two surface layer materials;
carrying out hot pressing on the plate blank to form a bamboo shaving board;
and sawing the bamboo shaving board after hot pressing, sorting and warehousing.
2. A process for manufacturing particle boards according to claim 1 wherein: the bamboo chip is 25 mm to 35 mm in length, 15 mm to 25 mm in width and 5 mm to 15 mm in thickness.
3. A process for manufacturing particle boards according to claim 1 wherein: the bamboo shavings have a length of 10 mm to 20 mm, a width of 5 mm to 10 mm, and a thickness of 0.2 mm to 0.5 mm.
4. A process for manufacturing particle boards according to claim 1 wherein: drying the bamboo shavings by using a rotor type dryer, wherein the inlet temperature of the rotor type dryer is 220-280 ℃, the outlet temperature of the rotor type dryer is 100-130 ℃, and the water content of the dried bamboo shavings is one percent to three percent.
5. A process for manufacturing particle boards according to claim 1 wherein: the amount of the aldehyde-free adhesive is 35 kg per cubic meter.
6. A process for manufacturing particle boards according to claim 1 wherein: the ratio of the core layer material to the surface layer material in the slab is 3: 2.
7. a process for manufacturing particle boards according to claim 1 wherein: and the step of hot-pressing the plate blank to form the bamboo shaving board uses a continuous hot press, the hot pressing temperature of the continuous hot press is 190-245 ℃, the hot pressing speed is 180-210 mm/s, and the hot pressing pressure is 0.5-4.0 bar.
8. A process for manufacturing particle boards according to claim 1 wherein: and uniformly polishing the dried surface layer material and the dried core layer material by a polisher.
9. A process for manufacturing particle boards according to claim 1 wherein the process for manufacturing particle boards further comprises the steps of:
and pre-pressing the laid plate blank to form a pre-pressed plate.
10. A process for manufacturing particle boards according to claim 1 wherein the process for manufacturing particle boards further comprises the steps of:
and turning the board, stacking, placing, preserving, sanding and polishing the hot-pressed bamboo shaving board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229603.3A CN114536489A (en) | 2022-03-09 | 2022-03-09 | Shaving board manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229603.3A CN114536489A (en) | 2022-03-09 | 2022-03-09 | Shaving board manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114536489A true CN114536489A (en) | 2022-05-27 |
Family
ID=81663835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210229603.3A Pending CN114536489A (en) | 2022-03-09 | 2022-03-09 | Shaving board manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114536489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116787560A (en) * | 2023-06-21 | 2023-09-22 | 广东始兴县华洲木业有限公司 | Composite heavy bamboo board and preparation method thereof |
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|---|---|---|---|---|
| CN204869124U (en) * | 2015-08-12 | 2015-12-16 | 云南永利发林业有限公司 | Full bamboo and compound shaving board of bamboo wood |
| CN106182315A (en) * | 2016-07-23 | 2016-12-07 | 万华生态板业股份有限公司 | A kind of bamboo perfume (or spice) particieboard and production technology thereof |
| CN108247803A (en) * | 2018-01-16 | 2018-07-06 | 浙江农林大学 | A kind of preparation method of the not mould non-ignitable bamboo shaving plate of no aldehyde |
| CN108908646A (en) * | 2018-08-16 | 2018-11-30 | 广西横县新威林板业有限公司 | A kind of bamboo wood of high intensity and oriented wood chipboard composite plate and preparation method thereof |
| CN109500976A (en) * | 2018-11-30 | 2019-03-22 | 大亚人造板集团有限公司 | A kind of production technology of the low aldehyde particieboard of high intensity |
| CN109623980A (en) * | 2018-10-19 | 2019-04-16 | 南宁科天水性科技有限责任公司 | It can the full bamboo of facing or bamboo and wood compound-voltage blocking and its manufacturing method without aldehyde |
-
2022
- 2022-03-09 CN CN202210229603.3A patent/CN114536489A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204869124U (en) * | 2015-08-12 | 2015-12-16 | 云南永利发林业有限公司 | Full bamboo and compound shaving board of bamboo wood |
| CN106182315A (en) * | 2016-07-23 | 2016-12-07 | 万华生态板业股份有限公司 | A kind of bamboo perfume (or spice) particieboard and production technology thereof |
| CN108247803A (en) * | 2018-01-16 | 2018-07-06 | 浙江农林大学 | A kind of preparation method of the not mould non-ignitable bamboo shaving plate of no aldehyde |
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| CN109623980A (en) * | 2018-10-19 | 2019-04-16 | 南宁科天水性科技有限责任公司 | It can the full bamboo of facing or bamboo and wood compound-voltage blocking and its manufacturing method without aldehyde |
| CN109500976A (en) * | 2018-11-30 | 2019-03-22 | 大亚人造板集团有限公司 | A kind of production technology of the low aldehyde particieboard of high intensity |
Non-Patent Citations (1)
| Title |
|---|
| 周定国主编: "《人造板工艺学》", 30 June 2011, 中国林业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116787560A (en) * | 2023-06-21 | 2023-09-22 | 广东始兴县华洲木业有限公司 | Composite heavy bamboo board and preparation method thereof |
| CN116787560B (en) * | 2023-06-21 | 2024-02-20 | 广东始兴县华洲木业有限公司 | Composite heavy bamboo board and preparation method thereof |
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Application publication date: 20220527 |