CN111300578A - Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column - Google Patents
Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column Download PDFInfo
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- CN111300578A CN111300578A CN202010270655.6A CN202010270655A CN111300578A CN 111300578 A CN111300578 A CN 111300578A CN 202010270655 A CN202010270655 A CN 202010270655A CN 111300578 A CN111300578 A CN 111300578A
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- fast
- bamboo
- growing wood
- pressure integrated
- combined column
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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
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0086—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by connecting using glue
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
-
- 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
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
Abstract
A preparation method of a side-pressure integrated bamboo-sandwiched fast-growing wood combined column comprises the following steps: preparing side-pressing integrated bamboo: processing bamboo raw materials into rectangular long bamboo chips with preset specifications; performing corrosion and fire prevention treatment on the long bamboo chips; drying, lengthening and gluing all the long bamboo strips, overlapping and assembling the long bamboo strips in the thickness direction, and pressing and gluing the long bamboo strips to form the side pressure integrated bamboo; preparing the fast-growing wood inner core: sawing, drying, dipping and carbonizing the fast-growing woods to obtain a fast-growing wood laminated board with a preset specification; drying the fast-growing wood laminate; gluing the glued surface of the fast-growing wood laminated board, and superposing and pressurizing the glued laminated board to form the fast-growing wood inner core; planing and wrapping the fast-growing wood inner core for protection; preparing a combined column: and placing the side pressure integrated bamboo on four sides of the fast-growing wood inner core, and gluing and pressurizing a joint surface to form the combined column. The invention makes full use of resources, and makes full use of bamboo resources and fast-growing wood resources in engineering construction.
Description
Technical Field
The invention belongs to the technical field of bamboo and wood structures, and particularly relates to a preparation method of a side-pressure integrated bamboo-sandwiched fast-growing wood combined column.
Background
China has abundant bamboo resources and fast-growing forest resources, but the utilization rate is very low, and the resources are not efficiently and reasonably utilized. The resource area of bamboo forest in China is the first in the world, but the original bamboo wood has poor performances such as corrosion resistance, fire resistance, mildew resistance and the like because of no deep processing, and when the bamboo wood is used as a building component, the component is inconvenient to connect because of irregular size, so that the bamboo wood can not be used for modern building engineering.
The bamboo processed by the modern processing technology overcomes the defects of natural raw bamboo, such as side pressure integrated bamboo, is widely applied to the fields of decoration, furniture manufacture, automobile bottom plates and the like, has certain application in the field of building engineering, but has higher price than wood and lacks economic competitiveness. The stock of fast-growing economic forest in China is large (such as fast-growing poplar, fast-growing eucalyptus, Hongsen locust and metasequoia), the fast-growing forest has poor quality due to short wood-forming period, fast growth, such as loose wood, low strength and poor durability, so the fast-growing forest is mainly used for manufacturing packaging boards, paper making and plywood at present, and the wood (engineering material) used in engineering is mainly imported.
How to fully utilize the existing bamboo resources and fast-growing wood resources in China and reduce the dependence on the import of engineering materials becomes a problem to be solved urgently.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation method of a side pressure integrated bamboo-sandwiched fast-growing wood combined column, which comprises the following steps:
preparing side-pressing integrated bamboo: processing bamboo raw materials into rectangular long bamboo chips with preset specifications;
performing corrosion and fire prevention treatment on the long bamboo chips;
drying, lengthening and gluing all the long bamboo strips, overlapping and assembling the long bamboo strips in the thickness direction, and pressing and gluing the long bamboo strips to form the side pressure integrated bamboo;
preparing the fast-growing wood inner core: sawing, drying, dipping and carbonizing the fast-growing woods to obtain a fast-growing wood laminated board with a preset specification;
drying the fast-growing wood laminate;
gluing the glued surface of the fast-growing wood laminated board, and superposing and pressurizing the glued laminated board to form the fast-growing wood inner core;
planing and wrapping the fast-growing wood inner core for protection;
preparing a combined column: and placing the side pressure integrated bamboo on four sides of the fast-growing wood inner core, and gluing and pressurizing a joint surface to form the combined column.
Preferably, the bamboo age of the bamboo raw material is 4-7 years.
Preferably, the bamboo raw material includes phyllostachys pubescens and phyllostachys pubescens.
Preferably, when hot press forming, all the long bamboo chips are glued by phenolic resin; and when the pressure is applied at normal temperature, all the long bamboo strips are glued by resorcinol resin or isocyanate resin.
Preferably, the glue applied on the gluing surface of the fast-growing wood veneer comprises phenolic glue, aminoplast polycondensation glue or single-component polyurethane glue.
Preferably, the glue thickness of the gluing surface of the fast-growing wood veneer is 0.1 mm-0.2 mm.
Preferably, the pressure for laminating and pressing the glued laminate is more than or equal to 0.4 MPa.
Preferably, the glue applied to the combining surface of the side pressure integrated bamboo and the fast-growing wood core comprises phenolic glue, aminoplast polycondensation glue or single-component polyurethane glue.
Preferably, the glue applied to the combining surface of the side pressure integrated bamboo and the fast-growing wood inner core is 0.1 mm-0.3 mm in thickness.
Preferably, the pressure for pressurizing the bonding surface of the side pressure integrated bamboo and the core of the fast-growing wood after sizing is more than or equal to 0.6 MPa.
The preparation method of the side pressure integrated bamboo-sandwiched fast-growing wood combined column has the following effective effects:
(1) the resources are fully utilized, so that the bamboo resources and the fast-growing wood resources are applied to engineering construction;
(2) the characteristics of materials are fully utilized, side pressure integrated bamboos with high strength, durability, fire resistance and other good performances are positioned on four sides of the column with larger stress on the section, and fast-growing woods with lower strength and poorer performances are positioned at the center of the section with lower stress and performance requirements on the column;
(3) the processing is simple, the economy is good, the price is much lower than that of the integrated bamboo columns adopting side pressure in the whole section, and the integrated bamboo columns are cheaper than imported wood in the whole section;
(4) reduces the wood import and realizes the aim of replacing wood with bamboo.
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 schematic structural diagram of a side pressure integrated bamboo-sandwiched fast-growing wood combined column prepared by the preparation method of the side pressure integrated bamboo-sandwiched fast-growing wood combined column provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 shows a side pressure integrated bamboo-sandwiched fast-growing wood combined column manufactured by the method for manufacturing a side pressure integrated bamboo-sandwiched fast-growing wood combined column provided by the present application, wherein the method comprises the steps of:
preparing side pressure integrated bamboo 2: processing bamboo raw materials into rectangular long bamboo chips with preset specifications;
performing corrosion and fire prevention treatment on the long bamboo chips;
drying, lengthening and gluing all the long bamboo strips, overlapping and assembling the long bamboo strips in the thickness direction, and pressing and gluing the long bamboo strips to form the side pressure integrated bamboo 2;
preparing a fast-growing wood inner core 1: sawing, drying, dipping and carbonizing the fast-growing woods to obtain a fast-growing wood laminated board with a preset specification;
drying the fast-growing wood laminate;
gluing the glued surface of the fast-growing wood laminated board, and superposing and pressurizing the glued laminated board to form the fast-growing wood inner core 1;
planing and wrapping the fast growing wood inner core 1 for protection;
preparing a combined column: and (3) placing the side pressure integrated bamboo 2 on four sides of the fast-growing wood inner core 1, and gluing and pressurizing a joint surface to form the combined column.
In the embodiment of the application, the bamboo age of the bamboo raw material is 4-7 years, and phyllostachys pubescens and moso bamboos are preferred.
In the embodiment of the application, the thickness of the rectangular long bamboo chips with preset specifications is 5mm, the width is 20mm, and the length is 1200 mm.
In the embodiment of the present application, the anti-corrosion and fire-proof treatment of the long bamboo strip includes high-temperature steaming, high-pressure impregnation, high-temperature carbonization, etc., which can be selected by those skilled in the art as required.
In the embodiment of the application, when hot press forming is carried out, all the long bamboo chips are glued by adopting phenolic resin; and when the pressure is applied at normal temperature, all the long bamboo strips are glued by resorcinol resin or isocyanate resin.
In the embodiment of the application, the glue applied to the gluing surface of the fast-growing wood veneer comprises phenol glue, aminoplast polycondensation glue or single-component polyurethane glue, the glue applied to the gluing surface of the fast-growing wood veneer is 0.1-0.2 mm in thickness, and the laminating pressure of the glued laminated board is more than or equal to 0.4 MPa.
In the embodiment of the application, the glue applied to the joint surface of the side pressure integrated bamboo 2 and the fast-growing wood core 1 comprises phenolic glue, aminoplast polycondensation glue or single-component polyurethane glue, the glue applied thickness of the joint surface of the side pressure integrated bamboo 2 and the fast-growing wood core 1 is 0.1 mm-0.3 mm, and the pressure for pressurizing the joint surface of the side pressure integrated bamboo 2 and the fast-growing wood core 1 after glue application is more than or equal to 0.6 MPa.
The preparation method of the side pressure integrated bamboo-sandwiched fast-growing wood combined column has the following effective effects:
(1) the resources are fully utilized, so that the bamboo resources and the fast-growing wood resources are applied to engineering construction;
(2) the characteristics of materials are fully utilized, side pressure integrated bamboos with high strength, durability, fire resistance and other good performances are positioned on four sides of the column with larger stress on the section, and fast-growing woods with lower strength and poorer performances are positioned at the center of the section with lower stress and performance requirements on the column;
(3) the processing is simple, the economy is good, the price is much lower than that of the integrated bamboo columns adopting side pressure in the whole section, and the integrated bamboo columns are cheaper than imported wood in the whole section;
(4) reduces the wood import and realizes the aim of replacing wood with bamboo.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A preparation method of a side-pressure integrated bamboo-sandwiched fast-growing wood combined column is characterized by comprising the following steps:
preparing side-pressing integrated bamboo: processing bamboo raw materials into rectangular long bamboo chips with preset specifications;
performing corrosion and fire prevention treatment on the long bamboo chips;
drying, lengthening and gluing all the long bamboo strips, overlapping and assembling the long bamboo strips in the thickness direction, and pressing and gluing the long bamboo strips to form the side pressure integrated bamboo;
preparing the fast-growing wood inner core: sawing, drying, dipping and carbonizing the fast-growing woods to obtain a fast-growing wood laminated board with a preset specification;
drying the fast-growing wood laminate;
gluing the glued surface of the fast-growing wood laminated board, and superposing and pressurizing the glued laminated board to form the fast-growing wood inner core;
planing and wrapping the fast-growing wood inner core for protection;
preparing a combined column: and placing the side pressure integrated bamboo on four sides of the fast-growing wood inner core, and gluing and pressurizing a joint surface to form the combined column.
2. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1, wherein the bamboo age of the bamboo raw material is 4-7 years.
3. The method for manufacturing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1 or 2, wherein the bamboo raw material comprises phyllostachys pubescens and moso bamboos.
4. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1, wherein when hot press forming, all the long bamboo chips are glued by phenolic resin; and when the pressure is applied at normal temperature, all the long bamboo strips are glued by resorcinol resin or isocyanate resin.
5. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1, wherein the glue applied to the gluing surface of the fast-growing wood laminate comprises phenolic glue, aminoplast polycondensation glue or single-component polyurethane glue.
6. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1 or 5, wherein the gluing surface of the fast-growing wood laminate is glued to a thickness of 0.1 mm-0.2 mm.
7. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1, wherein the laminating plate after being glued is laminated and pressed at a pressure of 0.4MPa or more.
8. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1, wherein the glue applied to the core combining surface of the lateral pressure integrated bamboo and the fast-growing wood comprises phenolic glue, aminoplast polycondensation glue or single-component polyurethane glue.
9. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1 or 8, wherein the bonding surface of the lateral pressure integrated bamboo and the fast-growing wood core is glued with a thickness of 0.1 mm-0.3 mm.
10. The method for preparing a lateral pressure integrated bamboo-sandwiched fast-growing wood combined column as claimed in claim 1, wherein the pressure for pressurizing the bonding surface of the lateral pressure integrated bamboo and the fast-growing wood core after glue application is greater than or equal to 0.6 MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270655.6A CN111300578A (en) | 2020-04-08 | 2020-04-08 | Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010270655.6A CN111300578A (en) | 2020-04-08 | 2020-04-08 | Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column |
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| CN111300578A true CN111300578A (en) | 2020-06-19 |
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| CN202010270655.6A Pending CN111300578A (en) | 2020-04-08 | 2020-04-08 | Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267617A (en) * | 2020-08-28 | 2021-01-26 | 东南大学 | Easily-connected fast-growing wood-high-strength engineering bamboo column |
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|---|---|---|---|---|
| DE2913678A1 (en) * | 1979-04-05 | 1980-10-16 | Schick Anton | Arched wooden door case and door cladding - involves treatment in rounding press only after standard pressing and section gluing |
| CN201098932Y (en) * | 2007-08-02 | 2008-08-13 | 陈丰熙 | Carbonization wood adhesion laminate |
| CN102554980A (en) * | 2012-02-20 | 2012-07-11 | 浙江世友木业有限公司 | Manufacturing method of laminated veneer lumber |
| CN204955040U (en) * | 2015-07-08 | 2016-01-13 | 中南林业科技大学 | Integrated material reinforcing laminwood of bamboo |
| CN207846405U (en) * | 2017-12-27 | 2018-09-11 | 福建农林大学 | A kind of bamboo package building square pile structure |
| CN109623972A (en) * | 2018-12-29 | 2019-04-16 | 南京林业大学 | A kind of veneer ornamental stone modeling substrate material and its production technology |
| CN110614681A (en) * | 2019-10-18 | 2019-12-27 | 南京林业大学 | Method for preparing composite staggered laminated timber by adopting bamboo laminated timber and standard timber |
-
2020
- 2020-04-08 CN CN202010270655.6A patent/CN111300578A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2913678A1 (en) * | 1979-04-05 | 1980-10-16 | Schick Anton | Arched wooden door case and door cladding - involves treatment in rounding press only after standard pressing and section gluing |
| CN201098932Y (en) * | 2007-08-02 | 2008-08-13 | 陈丰熙 | Carbonization wood adhesion laminate |
| CN102554980A (en) * | 2012-02-20 | 2012-07-11 | 浙江世友木业有限公司 | Manufacturing method of laminated veneer lumber |
| CN204955040U (en) * | 2015-07-08 | 2016-01-13 | 中南林业科技大学 | Integrated material reinforcing laminwood of bamboo |
| CN207846405U (en) * | 2017-12-27 | 2018-09-11 | 福建农林大学 | A kind of bamboo package building square pile structure |
| CN109623972A (en) * | 2018-12-29 | 2019-04-16 | 南京林业大学 | A kind of veneer ornamental stone modeling substrate material and its production technology |
| CN110614681A (en) * | 2019-10-18 | 2019-12-27 | 南京林业大学 | Method for preparing composite staggered laminated timber by adopting bamboo laminated timber and standard timber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267617A (en) * | 2020-08-28 | 2021-01-26 | 东南大学 | Easily-connected fast-growing wood-high-strength engineering bamboo column |
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Application publication date: 20200619 |
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