CN113070962A - Desalination treatment process for natural defects of wood raw materials - Google Patents
Desalination treatment process for natural defects of wood raw materials Download PDFInfo
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- CN113070962A CN113070962A CN202110259030.4A CN202110259030A CN113070962A CN 113070962 A CN113070962 A CN 113070962A CN 202110259030 A CN202110259030 A CN 202110259030A CN 113070962 A CN113070962 A CN 113070962A
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- wood
- glue
- treatment
- transparent epoxy
- defect
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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
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
- B27F5/00—Slotted or mortised work
- B27F5/02—Slotting or mortising machines tools therefor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a desalination treatment process for natural defects of wood raw materials, which comprises six steps of slotting treatment on the surface of the defect, collecting and treating sawdust, edge sealing treatment of organic glass at the edge of a slot, preparation of modified epoxy ab glue mixed liquid, solidification treatment after pouring the modified epoxy ab glue mixed liquid for shaking and moving, and polishing treatment of a convex glue surface; according to the invention, the defect is subjected to slotting treatment, the defect is reinforced by using the modified transparent epoxy ab glue, the wood with the defect can be ensured to be normally used, a large amount of wood waste is avoided, meanwhile, the transparent epoxy ab glue is modified by mixing the dry wood chips and the transparent glass fiber sections, the stress strength and toughness of the defect at the desalting treatment section are improved, the modified transparent epoxy ab glue can permeate into the wood through vibration standing treatment, and the cured modified transparent epoxy ab glue is connected with the wood more tightly and firmly by matching with the arrangement of the serrated slot edges.
Description
Technical Field
The invention relates to the technical field of defect treatment of wood in floor production, in particular to a desalination treatment process for natural defects of wood raw materials.
Background
The trees have natural defects in the growing process, wherein the natural defects comprise defects of tree knots, trunk shapes, wood structural cracks, scars and the like, and the natural defects also have biological hazards in the natural growing process, wherein the biological hazards comprise hazards of discoloration, decay, insect damage, marine wood drilling animals and wet wood, and the quality of the processed wood products is greatly threatened no matter which defects exist;
in the floor production and processing process, the defective parts of most of small or medium-defect woods are removed in a layered mode, but a large amount of wood waste is caused by the method, excessive wood needs to be cut to make up for the waste wood, the ecological environment is seriously influenced, and cut-down wood can be directly abandoned in most of large defects, so that the environment is not protected, and therefore the invention provides the desalination treatment process for natural defects of wood raw materials to solve the problems in the prior art.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a desalination treatment process for natural defects of wood raw materials, which ensures that the wood with the defects can be normally used and avoids a large amount of wood waste by grooving the defects and reinforcing the defects by using modified transparent epoxy ab glue, improves the stress strength and toughness of the defects at the desalination treatment section by mixing dry wood chips and transparent glass fiber sections, ensures that the modified transparent epoxy ab glue can permeate into the wood by vibration standing treatment, and ensures that the cured modified transparent epoxy ab glue is more tightly and firmly connected with the wood by matching with the arrangement of the zigzag groove edges.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a desalination treatment process for natural defects of wood raw materials comprises the following steps:
firstly, carrying out upper and lower grooving, grinding and polishing treatment on natural defect positions on the surface of wood, wherein the grooving depth is 1-2cm, the defect positions extend upwards and downwards for 6-8cm, the upper and lower edges are processed into saw-toothed shapes, and generated sawdust is collected for later use;
secondly, putting the wood chips generated by the grinding and polishing treatment of the slots in the first step into a baking oven, baking for 20-30min at the temperature of 60-75 ℃, and taking out and naturally cooling to obtain dry wood chips;
step three, enclosing and sealing the processed groove at the upper end of the edge of the groove at the defect position by using glass cement and an organic glass sheet, wherein the height of the edge organic glass sheet is slightly less than the depth of the groove, if the wood is cylindrical, the wood is erected firstly, then the glass cement and the organic glass sheet are fixed from the lowest end of the opened groove, the wood is erected upwards to form an enclosing ring, and the upper end of the enclosing ring is higher than the highest end of the groove;
step four, adding a transparent epoxy resin ab glue main agent into a mixing barrel, adding the dry wood chips obtained in the step two into the mixing barrel, adding transparent glass fiber sections into the mixing barrel, uniformly mixing the materials, adding a transparent epoxy resin ab glue auxiliary agent curing agent, and quickly and fully stirring the materials to obtain a modified transparent epoxy resin ab glue mixed solution;
step five, spraying and airing the groove with the defect position by using alcohol, then quickly pouring the modified transparent epoxy resin ab glue mixed solution prepared in the step four into the cavity of the organic glass sheet prefabricated in the step three to vibrate the wood for 30s, and then carrying out curing treatment;
and step six, removing the glass cement and the organic glass sheet on the cured wood, removing the cured transparent epoxy resin protruding out of the surface of the wood by using a grinding machine, and polishing by using a polishing machine after the glass cement and the organic glass sheet are aligned with the surface, so that the surface defects of the wood are desalted and repaired.
The further improvement lies in that: if the wood is cylindrical in the first step, processing the surface of the defect into a groove with a crescent-shaped cross section according to the size of the defect, wherein the deepest part of the groove is 1-2 cm; if the wood is flat wood, the wood is processed into square grooves, and the groove depth is 1-2 cm.
The further improvement lies in that: and in the second step, the wood chips are required to be continuously stirred in the baking oven by using the stirring and stirring device during the drying treatment, so that the wood chips are uniformly heated.
The further improvement lies in that: and in the fourth step, the stirring speed is 150r/min when the dry wood chips and the transparent glass fiber section are added and mixed, and the stirring speed is 300r/min when the transparent epoxy resin ab glue auxiliary agent curing agent is added and mixed.
The further improvement lies in that: and fifthly, when the wood is vibrated after the modified transparent epoxy resin ab glue mixed liquid is poured, ensuring that the contact surface of the modified transparent epoxy resin ab glue mixed liquid and the wood and the jagged corners do not have bubbles, and standing for 15-20min after the modified transparent epoxy resin ab glue mixed liquid is poured for vibration defoaming treatment of the wood.
The further improvement lies in that: and in the step five, the curing treatment condition is that the mixture is treated at 50-70 ℃ for 40-60min and then naturally cooled to normal temperature in the room temperature environment.
The further improvement lies in that: and sixthly, coating a layer of tung oil on the whole surface of the wood and the cured transparent epoxy resin after polishing to form a protective layer.
The invention has the beneficial effects that: according to the invention, the defect is subjected to slotting treatment, the defect is reinforced by using the modified transparent epoxy ab glue, the wood with the defect can be ensured to be normally used, a large amount of wood waste is avoided, meanwhile, the transparent epoxy ab glue is modified by mixing the dry wood chips and the transparent glass fiber sections, the stress strength and toughness of the defect at the desalting treatment section are improved, the modified transparent epoxy ab glue can permeate into the wood through vibration standing treatment, and the cured modified transparent epoxy ab glue is connected with the wood more tightly and firmly by matching with the arrangement of the serrated slot edges.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a process flow diagram of the present invention.
FIG. 2 is a schematic view of the grooving process for flat wood in accordance with the present invention.
FIG. 3 is a schematic cross-sectional view of a cylindrical wood grooving process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to fig. 1, 2 and 3, the embodiment provides a desalination treatment process for natural defects of wood raw materials, which comprises the following steps:
firstly, carrying out upper and lower grooving, grinding and polishing treatment on natural defect positions on the surface of wood, wherein the grooving depth is 1-2cm, the defect positions extend upwards and downwards for 6-8cm, the upper and lower edges are processed into saw-toothed shapes, and generated sawdust is collected for later use;
secondly, putting the wood chips generated by the grinding and polishing treatment of the slots in the first step into a baking oven, baking for 20-30min at the temperature of 60-75 ℃, and taking out and naturally cooling to obtain dry wood chips;
step three, enclosing and sealing the processed groove at the upper end of the edge of the groove at the defect position by using glass cement and an organic glass sheet, wherein the height of the edge organic glass sheet is slightly less than the depth of the groove, if the wood is cylindrical, the wood is erected firstly, then the glass cement and the organic glass sheet are fixed from the lowest end of the opened groove, the wood is erected upwards to form an enclosing ring, and the upper end of the enclosing ring is higher than the highest end of the groove;
step four, adding a transparent epoxy resin ab glue main agent into a mixing barrel, adding the dry wood chips obtained in the step two into the mixing barrel, adding transparent glass fiber sections into the mixing barrel, uniformly mixing the materials, adding a transparent epoxy resin ab glue auxiliary agent curing agent, and quickly and fully stirring the materials to obtain a modified transparent epoxy resin ab glue mixed solution;
step five, spraying and airing the groove with the defect position by using alcohol, then quickly pouring the modified transparent epoxy resin ab glue mixed solution prepared in the step four into the cavity of the organic glass sheet prefabricated in the step three to vibrate the wood for 30s, and then carrying out curing treatment;
and step six, removing the glass cement and the organic glass sheet on the cured wood, removing the cured transparent epoxy resin protruding out of the surface of the wood by using a grinding machine, and polishing by using a polishing machine after the glass cement and the organic glass sheet are aligned with the surface, so that the surface defects of the wood are desalted and repaired.
If the wood is cylindrical in the first step, processing the surface of the defect into a groove with a crescent-shaped cross section according to the size of the defect, wherein the deepest part of the groove is 1-2 cm; if the wood is flat wood, the wood is processed into square grooves, and the groove depth is 1-2 cm.
And in the second step, the wood chips are required to be continuously stirred in the baking oven by using the stirring and stirring device during the drying treatment, so that the wood chips are uniformly heated.
And in the fourth step, the stirring speed is 150r/min when the dry wood chips and the transparent glass fiber section are added and mixed, and the stirring speed is 300r/min when the transparent epoxy resin ab glue auxiliary agent curing agent is added and mixed.
And fifthly, when the wood is vibrated after the modified transparent epoxy resin ab glue mixed liquid is poured, ensuring that the contact surface of the modified transparent epoxy resin ab glue mixed liquid and the wood and the jagged corners do not have bubbles, and standing for 15-20min after the modified transparent epoxy resin ab glue mixed liquid is poured for vibration defoaming treatment of the wood.
And in the step five, the curing treatment condition is that the mixture is treated at 50-70 ℃ for 40-60min and then naturally cooled to normal temperature in the room temperature environment.
And sixthly, coating a layer of tung oil on the whole surface of the wood and the cured transparent epoxy resin after polishing to form a protective layer.
This desalination processing technology of timber raw and other materials natural defect is through the fluting processing to the defect department, and utilize modified transparent epoxy ab glue to carry out reinforcement treatment to the defect department, the timber that has the defect also can normal use, a large amount of timber waste has been avoided, utilize dry saw-dust and transparent glass fiber section to mix simultaneously and modify transparent epoxy ab glue, the stress intensity and the toughness of desalination section defect department have been improved, and through vibrations processing of stewing, make modified transparent epoxy ab glue can permeate inside the timber, the setting up of cooperation cockscomb structure groove limit makes the modified transparent epoxy ab glue after the solidification be connected with timber closely firmly more.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A desalination treatment process for natural defects of wood raw materials is characterized by comprising the following steps:
step one, carrying out up-and-down grooving, grinding and polishing treatment on natural defect positions on the surface of a wood raw material, wherein the grooving depth is 1-2cm, the defect positions extend upwards and downwards for 6-8cm, the upper edge and the lower edge of the defect positions are processed into a sawtooth shape, and generated sawdust is collected for later use;
secondly, putting the wood chips generated by the grinding and polishing treatment of the slots in the first step into a baking oven, baking for 20-30min at the temperature of 60-75 ℃, and taking out and naturally cooling to obtain dry wood chips;
step three, enclosing and sealing the processed groove at the upper end of the edge of the groove at the defect position by using glass cement and an organic glass sheet, wherein the height of the edge organic glass sheet is slightly less than the depth of the groove, if the wood is cylindrical, the wood is erected firstly, then the glass cement and the organic glass sheet are fixed from the lowest end of the opened groove, the wood is erected upwards to form an enclosing ring, and the upper end of the enclosing ring is higher than the highest end of the groove;
step four, adding a transparent epoxy resin ab glue main agent into a mixing barrel, adding the dry wood chips obtained in the step two into the mixing barrel, adding transparent glass fiber sections into the mixing barrel, uniformly mixing the materials, adding a transparent epoxy resin ab glue auxiliary agent curing agent, and quickly and fully stirring the materials to obtain a modified transparent epoxy resin ab glue mixed solution;
step five, spraying and airing the groove with the defect position by using alcohol, then quickly pouring the modified transparent epoxy resin ab glue mixed solution prepared in the step four into the cavity of the organic glass sheet prefabricated in the step three to vibrate the wood for 30s, and then carrying out curing treatment;
and step six, removing the glass cement and the organic glass sheet on the cured wood, removing the cured transparent epoxy resin protruding out of the surface of the wood by using a grinding machine, and polishing by using a polishing machine after the glass cement and the organic glass sheet are aligned with the surface, so that the surface defects of the wood are desalted and repaired.
2. The process for desalinating natural defects of raw wood materials according to claim 1, wherein: if the wood is cylindrical in the first step, processing the surface of the defect into a groove with a crescent-shaped cross section according to the size of the defect, wherein the deepest part of the groove is 1-2 cm; if the wood is flat wood, the wood is processed into square grooves, and the groove depth is 1-2 cm.
3. The process for desalinating natural defects of raw wood materials according to claim 1, wherein: and in the second step, the wood chips are required to be continuously stirred in the baking oven by using the stirring and stirring device during the drying treatment, so that the wood chips are uniformly heated.
4. The process for desalinating natural defects of raw wood materials according to claim 1, wherein: and in the fourth step, the stirring speed is 150r/min when the dry wood chips and the transparent glass fiber section are added and mixed, and the stirring speed is 300r/min when the transparent epoxy resin ab glue auxiliary agent curing agent is added and mixed.
5. The process for desalinating natural defects of raw wood materials according to claim 1, wherein: and fifthly, when the wood is vibrated after the modified transparent epoxy resin ab glue mixed liquid is poured, ensuring that the contact surface of the modified transparent epoxy resin ab glue mixed liquid and the wood and the jagged corners do not have bubbles, and standing for 15-20min after the modified transparent epoxy resin ab glue mixed liquid is poured for vibration defoaming treatment of the wood.
6. The process for desalinating natural defects of raw wood materials according to claim 1, wherein: and in the step five, the curing treatment condition is that the mixture is treated at 50-70 ℃ for 40-60min and then naturally cooled to normal temperature in the room temperature environment.
7. The process for desalinating natural defects of raw wood materials according to claim 1, wherein: and sixthly, coating a layer of tung oil on the whole surface of the wood and the cured transparent epoxy resin after polishing to form a protective layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110259030.4A CN113070962A (en) | 2021-03-10 | 2021-03-10 | Desalination treatment process for natural defects of wood raw materials |
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Application publication date: 20210706 |