CN112339055A - Environment-friendly wood formwork production process - Google Patents
Environment-friendly wood formwork production process Download PDFInfo
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- CN112339055A CN112339055A CN202011208520.3A CN202011208520A CN112339055A CN 112339055 A CN112339055 A CN 112339055A CN 202011208520 A CN202011208520 A CN 202011208520A CN 112339055 A CN112339055 A CN 112339055A
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- skin layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
-
- 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
- B27K1/00—Damping 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
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
-
- 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
- B27K5/007—Treating of wood not provided for in groups B27K1/00, B27K3/00 using pressure
- B27K5/0075—Vacuum
-
- 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
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L5/00—Manufacture of veneer ; Preparatory processing therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
Abstract
The invention belongs to the technical field of wood processing, and particularly relates to an environment-friendly wood template production process, which comprises the following steps: pretreating raw wood, gluing, arranging ribs, splicing plates, cold pressing, hot pressing, humidifying, trimming, drying and obtaining a finished product. According to the invention, the log veneer is soaked in the mixed solution of the solvent benzene, the flame-retardant water agent and the acetic anhydride solvent, and is subjected to pretreatment of steam drying and vacuum pumping, and then the bamboo strips are distributed with ribs to form a Chinese character 'mi', so that the toughness of the wood template is greatly enhanced, and the compression strength along the grain can be enhanced by rechecking in a two-longitudinal-one-transverse mode, so that the wood template has the effects of large bending strength, large end face hardness, corrosion resistance, good flame retardance and large mechanical strength; the invention can effectively prevent dust pollution by carrying out trimming and polishing after humidifying during trimming, and the weight coated by the milky white glue is 1/12-1/9 which is the weight of a skin layer and is the optimal glue application amount, thereby achieving the optimal effect of saving resources.
Description
Technical Field
The invention belongs to the technical field of wood processing, and particularly relates to an environment-friendly wood template production process.
Background
A wooden form, which is one of building materials, is composed of a panel and a support system, the panel being a part for forming concrete; the support system is the structural part that stabilizes the position of the panels and bears the upper load. The quality of the panel wooden template is related to the quality of the concrete engineering; the existing composite wood template has the defects of high dust pollution, low processing efficiency, disordered processing steps and incapability of orderly production during processing, so that the produced composite board has poor quality, namely poor functions of bending strength, end face hardness, corrosion resistance, flame retardance, mechanical strength and the like; therefore, the development of an environment-friendly wood template production process which has less dust pollution during processing, high efficiency and order in processing and high quality of the produced composite board is urgently needed.
Disclosure of Invention
Technical problem to be solved
The composite wood template aims to overcome the defects that the produced composite board has poor quality, namely poor functions of bending strength, end face hardness, corrosion resistance, flame retardance, mechanical strength and the like due to the fact that the produced dust pollution is large, the processing efficiency is low, the processing steps are disordered and the composite wood template can not be produced in order when the existing composite wood template is processed; the invention provides an environment-friendly wood formwork production process which has the advantages of less dust pollution during processing, high efficiency and order in processing and high quality of the produced composite board.
(II) technical scheme
The invention is realized by the following technical scheme: the invention provides an environment-friendly wood template production process, which comprises the following steps:
a) pretreatment of logs: cutting the log into sheets with certain specifications, cleaning the sheets, mixing a solvent benzene, a flame-retardant water agent and an acetic anhydride solvent to form a mixed solution, immersing the sheets in the mixed solution for 45-60 min, taking out the sheets, drying the sheets by using steam, and vacuumizing, so that the skin layer is successfully manufactured;
b) gluing: uniformly brushing the surface of the cortex with the milky white glue, wherein the brushing weight of the milky white glue is 1/12-1/9 of the weight of the cortex;
c) arranging ribs and splicing plates: taking a first layer of skin layer, taking two first bamboo strips with the thickness of 1-2mm and the width of 3-5mm, coating the first layer of skin layer with the surface coated with the white latex in a '+' shape, wherein the distance between the end point of the first bamboo strip and the boundary of the first layer of skin layer is 3-5mm, taking a second layer of skin layer to be attached to the first bamboo strip, the first layer of skin layer corresponds to the second layer of skin layer to form a jointed board, taking two second bamboo strips with the thickness of 1-2mm and the width of 3-5mm, coating the second layer of skin layer with the surface coated with the white latex in an X shape, the distance between the end point of the bamboo strip and the boundary of the second layer of skin layer is 3-5mm, and then taking a third layer to be attached to the second bamboo strips, wherein the second layer of skin layer corresponds to the third layer of skin layer to form a second jointed board;
d) cold pressing and hot pressing: shaping the second jointed board, after shaping, firstly carrying out cold pressing on the second jointed board by using a cold press, and then carrying out hot pressing on the second jointed board by using a hot press to form a semi-finished product;
e) humidifying: humidifying the semi-finished product;
f) trimming, drying and obtaining a finished product: and trimming the boundary of the semi-finished product by using a cutting machine and a grinding machine, and drying the semi-finished product by using a dryer after trimming to obtain the environment-friendly wood template finished product.
Further, the ratio of the solvent benzene, the flame-retardant water agent and the acetic anhydride solvent in the mixed solution in the step a) is 4: 2: 1.
further, the steam temperature in the step a) is 130-150 ℃, and the vacuumizing pressure is 100-120 MPa.
Further, the humidity of the environment-friendly wood formwork finished product in the step f) is less than or equal to 18 ℃.
Further, the first layer of leather layer and the third layer of leather layer in the step c) are longitudinally arranged; the second layer of skin is transversely put, and is equipped with four.
Further, after the step d) is finished, waterproof glue needs to be coated or a waterproof film needs to be attached.
Further, the hot press in the step d) adopts a hot steam mode for hot pressing.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the log veneer is soaked in the mixed solution of the solvent benzene, the flame-retardant water agent and the acetic anhydride solvent, and is subjected to pretreatment of steam drying and vacuum pumping, and then the bamboo strips are distributed with ribs to form a Chinese character 'mi', so that the toughness of the wood template is greatly enhanced, and the compression strength along the grain can be enhanced by rechecking in a two-longitudinal-one-transverse mode, so that the wood template has the effects of large bending strength, large end face hardness, corrosion resistance, good flame retardance and large mechanical strength; the invention can effectively prevent dust pollution by carrying out trimming and polishing after humidifying during trimming, and the weight coated by the milky white glue is 1/12-1/9 which is the weight of a skin layer and is the optimal glue application amount, thereby achieving the optimal effect of saving resources.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of the production process of the present invention.
FIG. 2 is a schematic diagram of a rib arrangement structure of the first skin layer of the present invention.
FIG. 3 is a schematic diagram of a rib arrangement structure of the second skin layer according to the present invention.
Detailed Description
In the technical scheme:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides an environment-friendly wood formwork manufacturing process, which includes the following steps:
a) pretreatment of logs: cutting the log into sheets with certain specifications, cleaning the sheets, mixing a solvent benzene, a flame-retardant water agent and an acetic anhydride solvent to form a mixed solution, immersing the sheets in the mixed solution for 45-60 min, taking out the sheets, drying the sheets by using steam, and vacuumizing, so that the skin layer is successfully manufactured;
b) gluing: uniformly brushing the surface of the cortex with the milky white glue, wherein the brushing weight of the milky white glue is 1/12-1/9 of the weight of the cortex;
c) arranging ribs and splicing plates: taking a first layer of skin layer, taking two first bamboo strips with the thickness of 1-2mm and the width of 3-5mm, coating the first layer of skin layer with the surface coated with the white latex in a '+' shape, wherein the distance between the end point of the first bamboo strip and the boundary of the first layer of skin layer is 3-5mm, taking a second layer of skin layer to be attached to the first bamboo strip, the first layer of skin layer corresponds to the second layer of skin layer to form a jointed board, taking two second bamboo strips with the thickness of 1-2mm and the width of 3-5mm, coating the second layer of skin layer with the surface coated with the white latex in an X shape, the distance between the end point of the bamboo strip and the boundary of the second layer of skin layer is 3-5mm, and then taking a third layer to be attached to the second bamboo strips, wherein the second layer of skin layer corresponds to the third layer of skin layer to form a second jointed board;
d) cold pressing and hot pressing: shaping the second jointed board, after shaping, firstly carrying out cold pressing on the second jointed board by using a cold press, and then carrying out hot pressing on the second jointed board by using a hot press to form a semi-finished product;
e) humidifying: humidifying the semi-finished product;
f) trimming, drying and obtaining a finished product: trimming the boundary of the semi-finished product by using a cutting machine and a grinding machine, and drying the semi-finished product by using a dryer after trimming is finished, so as to finish the environment-friendly wood template finished product;
the proportion of the solvent benzene, the flame-retardant water agent and the acetic anhydride solvent in the mixed solution in the step a) is 4: 2: 1;
the steam temperature in the step a) is 130-150 ℃, and the vacuumizing pressure is 100-120 Mpa;
the dryness and humidity of the environment-friendly wood template finished product in the step f) are less than or equal to 18 ℃;
the first layer of leather layer and the third layer of leather layer in the step c) are longitudinally arranged; the second layer of leather is transversely arranged and is provided with four leather layers;
after the step d) is finished, waterproof glue is coated or a waterproof film is attached;
and d), heating the hot press in the step d) by adopting a hot steam mode.
The finished product is detected, the end face hardness is 12000N, the pressure resistance along the grain is 150MPa, the bending strength is 300MPa, the oxygen index is 50 percent, and the smoke density is 40kg/m3
According to the invention, the log veneer is soaked in the mixed solution of the solvent benzene, the flame-retardant water agent and the acetic anhydride solvent, and is subjected to pretreatment of steam drying and vacuum pumping, and then the bamboo strips are distributed with ribs to form a Chinese character 'mi', so that the toughness of the wood template is greatly enhanced, and the compression strength along the grain can be enhanced by rechecking in a two-longitudinal-one-transverse mode, so that the wood template has the effects of large bending strength, large end face hardness, corrosion resistance, good flame retardance and large mechanical strength; the invention can effectively prevent dust pollution by carrying out trimming and polishing after humidifying during trimming, and the weight coated by the milky white glue is 1/12-1/9 which is the weight of a skin layer and is the optimal glue application amount, thereby achieving the optimal effect of saving resources.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. .
Claims (7)
1. An environment-friendly wood formwork production process is characterized in that: the production process comprises the following steps:
a) pretreatment of logs: cutting the log into sheets with certain specifications, cleaning the sheets, mixing a solvent benzene, a flame-retardant water agent and an acetic anhydride solvent to form a mixed solution, immersing the sheets in the mixed solution for 45-60 min, taking out the sheets, drying the sheets by using steam, and vacuumizing, so that the skin layer is successfully manufactured;
b) gluing: uniformly brushing the surface of the cortex with the milky white glue, wherein the brushing weight of the milky white glue is 1/12-1/9 of the weight of the cortex;
c) arranging ribs and splicing plates: taking a first layer of skin layer, taking two first bamboo strips with the thickness of 1-2mm and the width of 3-5mm, coating the first layer of skin layer with the surface coated with the white latex in a '+' shape, wherein the distance between the end point of the first bamboo strip and the boundary of the first layer of skin layer is 3-5mm, taking a second layer of skin layer to be attached to the first bamboo strip, the first layer of skin layer corresponds to the second layer of skin layer to form a jointed board, taking two second bamboo strips with the thickness of 1-2mm and the width of 3-5mm, coating the second layer of skin layer with the surface coated with the white latex in an X shape, the distance between the end point of the bamboo strip and the boundary of the second layer of skin layer is 3-5mm, and then taking a third layer to be attached to the second bamboo strips, wherein the second layer of skin layer corresponds to the third layer of skin layer to form a second jointed board;
d) cold pressing and hot pressing: shaping the second jointed board, after shaping, firstly carrying out cold pressing on the second jointed board by using a cold press, and then carrying out hot pressing on the second jointed board by using a hot press to form a semi-finished product;
e) humidifying: humidifying the semi-finished product;
f) trimming, drying and obtaining a finished product: and trimming the boundary of the semi-finished product by using a cutting machine and a grinding machine, and drying the semi-finished product by using a dryer after trimming to obtain the environment-friendly wood template finished product.
2. The environment-friendly wood formwork production process as claimed in claim 1, wherein: the proportion of the solvent benzene, the flame-retardant water agent and the acetic anhydride solvent in the mixed solution in the step a) is 4: 2: 1.
3. the environment-friendly wood formwork production process as claimed in claim 1, wherein: the steam temperature in the step a) is 130-150 ℃, and the vacuumizing pressure is 100-120 Mpa.
4. The environment-friendly wood formwork production process as claimed in claim 1, wherein: and f), the dryness and humidity of the environment-friendly wood template finished product in the step f) are less than or equal to 18 ℃.
5. The environment-friendly wood formwork production process as claimed in claim 1, wherein: the first layer of leather layer and the third layer of leather layer in the step c) are longitudinally arranged; the second layer of skin is transversely put, and is equipped with four.
6. The environment-friendly wood formwork production process as claimed in claim 1, wherein: and d), after the step d) is shaped, coating waterproof glue or pasting a waterproof film.
7. The environment-friendly wood formwork production process as claimed in claim 1, wherein: and d), carrying out hot pressing by the hot press in the step d) in a hot steam mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011208520.3A CN112339055A (en) | 2020-11-03 | 2020-11-03 | Environment-friendly wood formwork production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011208520.3A CN112339055A (en) | 2020-11-03 | 2020-11-03 | Environment-friendly wood formwork production process |
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| CN112339055A true CN112339055A (en) | 2021-02-09 |
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| CN202011208520.3A Withdrawn CN112339055A (en) | 2020-11-03 | 2020-11-03 | Environment-friendly wood formwork production process |
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| CN2644343Y (en) * | 2003-09-29 | 2004-09-29 | 李臣 | Reinforced special type plywood |
| CN101342723A (en) * | 2008-02-28 | 2009-01-14 | 张培义 | Method for manufacturing sunflower artificial board of straw |
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| CN102554978A (en) * | 2012-01-18 | 2012-07-11 | 浙江腾龙竹木地板制造有限公司 | Bamboo and timber veneer |
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| CN106042110A (en) * | 2016-06-01 | 2016-10-26 | 江苏科技大学 | Production process for flame-retardant wood board |
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Application publication date: 20210209 |