CN113263582A - Green and efficient preparation method of camphorwood fiberboard - Google Patents
Green and efficient preparation method of camphorwood fiberboard Download PDFInfo
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- CN113263582A CN113263582A CN202110684058.2A CN202110684058A CN113263582A CN 113263582 A CN113263582 A CN 113263582A CN 202110684058 A CN202110684058 A CN 202110684058A CN 113263582 A CN113263582 A CN 113263582A
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- camphorwood
- fiberboard
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- limestone powder
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- 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
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
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- 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
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
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- 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
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a green and efficient preparation method of a camphorwood fiberboard, which comprises the following steps: A. uniformly spraying a limestone powder layer on the lower surface of the pressing plate of the hot press to obtain an improved hot press A; B. preparing a camphorwood fiberboard blank, and spraying a limestone powder layer on the upper surface of the camphorwood fiberboard blank to obtain a board blank B; C. carrying out hot press molding on the board blank B by using a hot press A to obtain a camphorwood fiberboard semi-finished product; D. and sanding the surface of the camphor wood fiberboard semi-finished product to obtain a camphor wood fiberboard finished product. The invention can effectively solve the problem that the camphorwood fiber board is easy to be glued in the hot pressing process.
Description
Technical Field
The invention relates to a fiberboard preparation process, in particular to a green and efficient preparation method of a camphorwood fiberboard.
Background
The fiberboard is also named as a density board, which is an artificial board made of wood fiber or other plant cellulose fiber as a raw material and urea formaldehyde resin or other suitable adhesives. During the manufacturing process, adhesives and/or additives may be applied. The fiber board has the advantages of uniform material, small longitudinal and transverse strength difference, difficult cracking and the like, and has wide application. At present, the fiber board is an important artificial board product and is widely applied to the fields of furniture, decoration, packaging and the like; compared with other types of artificial boards, the fiberboard has lower requirements on raw materials, and wood processing residues and wood branches can be used for producing the fiberboard. The attribute greatly improves the comprehensive utilization rate of the wood material.
The method for producing the fiberboard by taking the camphor wood as the raw material is an important method for solving the problem of difficult utilization of the camphor wood. The camphorwood-based fiberboard has natural camphorwood smell, has the effects of insect prevention and insect repelling, and is a wood-based board product accepted in the market. The camphor wood oil brings the advantages to the camphor wood-based product, and increases the processing difficulty of the camphor wood fiber board. Particularly, the camphor wood oil is easy to carbonize and agglomerate under the high-temperature condition, the camphor wood oil is easy to adhere to the surface of a press pressing plate after being mixed with an adhesive, the surface of the press after the adhesive is agglomerated is not smooth any more, and the heat-conducting property is also influenced. The above phenomena can cause the surface of the pressed fiberboard to be uneven, and the product quality is difficult to control; in order to improve the surface smoothness, the surface of the prior camphorwood fiber board generally needs to be subjected to deep sanding before leaving a factory. Meanwhile, production enterprises can not stop at irregular time and clean the press pressing plates, so that the production efficiency of the enterprises is greatly reduced, and the service life of the press pressing plates is also shortened. Therefore, the prior art can not effectively solve the problem that the camphorwood fiber board is easy to be glued in the hot pressing process.
Disclosure of Invention
The invention aims to provide a green and efficient preparation method of a camphorwood fiberboard. The invention can effectively solve the problem that the camphorwood fiber board is easy to be glued in the hot pressing process.
The technical scheme of the invention is as follows: a green and efficient preparation method of a camphorwood fiberboard comprises the following steps:
A. uniformly spraying a limestone powder layer on the lower surface of the pressing plate of the hot press to obtain an improved hot press A;
B. preparing a camphorwood fiberboard blank, and spraying a limestone powder layer on the upper surface of the camphorwood fiberboard blank to obtain a board blank B;
C. carrying out hot press molding on the board blank B by using a hot press A to obtain a camphorwood fiberboard semi-finished product;
D. and sanding the surface of the camphor wood fiberboard semi-finished product to obtain a camphor wood fiberboard finished product.
In the green and efficient preparation method of the camphorwood fiberboard, the limestone powder layer in the step A and the limestone powder layer in the step B are uniformly sprayed on corresponding positions in a vacuum spray gun mode.
In the green and efficient preparation method of the camphorwood fiberboard, the mesh number of the limestone powder is less than 2000 meshes.
In the green and efficient preparation method of the camphorwood fiberboard, the paving thickness of the limestone powder layer in the step A and the step B is 1.5 +/-0.3 mm.
In the green and efficient preparation method of the camphorwood fiberboard, the preparation process of the camphorwood fiberboard blank is as follows: gluing the camphorwood fibers, and paving and assembling the glued camphorwood fibers to obtain a camphorwood fiberboard blank.
In the green and efficient preparation method of the camphorwood fiber board, the used adhesive is urea-formaldehyde resin adhesive, and the adhesive application amount per cubic meter of the fiber board is 210-215 kg.
In the step C, the hot-pressing pressure during the hot-press molding is 19.0-19.5MPa, the hot-pressing temperature is 190-.
In the green and efficient preparation method of the camphorwood fiberboard, the sanding treatment depth is 1.4-1.6 mm.
Compared with the prior art, the invention prepares the camphorwood fiber board by laying a layer of limestone powder layer on the upper surface of the plate blank and the lower surface of the pressing plate of the hot press and reducing the glue application amount and the hot pressing time, thereby effectively relieving the gluing phenomenon of the camphorwood oil, greatly reducing the periodic cleaning period of the pressing plate of the hot press, improving the production efficiency and prolonging the service life of the pressing plate of the hot press. Meanwhile, the internal bonding strength and the surface bonding strength of the fiber board prepared by the method can be improved (the internal bonding strength is 1.0MPa, the surface bonding strength is 1.1MPa), and the water absorption thickness expansion rate is lower (the water absorption thickness expansion rate is 8%); and the surface sanding thickness can be reduced, the surface flatness is better, and no black spots exist (the surface sanding depth is only 1.4-1.6 mm).
Compared with the prior art, the invention has the beneficial effects that:
(1) under the conditions of the same hot pressing temperature and the same hot pressing pressure, the hot pressing time can be shortened by 4 percent, and the using amount of the adhesive is reduced by 5 percent;
(2) the internal bonding strength of the product is improved by 20 percent, the surface bonding strength is improved by 18 percent, and the water absorption thickness expansion rate is reduced by 20 percent;
(3) the sanding thickness of the product before leaving factory is reduced by 40 percent, and the surface of the fiber board is smooth and flawless (as shown in figure 2);
(4) the phenomenon of the glue bonding of the press plate of the press is effectively relieved, the stop period for cleaning the glue bonding of the press plate of the press is prolonged by 3 times, and the time consumption for cleaning the press plate once is reduced by 70%.
Drawings
FIG. 1 is a camphorwood fiberboard finished product prepared by a conventional process;
fig. 2 shows the camphorwood fiberboard finished product prepared by the process of the embodiment 2 of the invention.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example 1. A green and efficient preparation method of a camphorwood fiberboard comprises the following steps:
A. uniformly spraying a limestone powder layer on the lower surface of the pressing plate of the hot press to obtain an improved hot press A;
B. preparing a camphorwood fiberboard blank, and spraying a limestone powder layer on the upper surface of the camphorwood fiberboard blank to obtain a board blank B;
C. carrying out hot press molding on the board blank B by using a hot press A to obtain a camphorwood fiberboard semi-finished product;
D. and sanding the surface of the camphor wood fiberboard semi-finished product to obtain a camphor wood fiberboard finished product.
And D, uniformly spraying limestone powder on corresponding positions of the limestone powder layer in the step A and the limestone powder layer in the step B in a vacuum spray gun mode.
The mesh number of the limestone powder is less than 2000 meshes.
The paving thickness of the limestone powder layer in the step A and the step B is 1.5 +/-0.3 mm.
The preparation process of the camphorwood fiberboard blank comprises the following steps: gluing the camphorwood fibers, and paving and assembling the glued camphorwood fibers to obtain a camphorwood fiberboard blank.
The adhesive used is urea-formaldehyde resin adhesive, and the adhesive application amount per cubic meter of the fiber board is 210-215 kg.
In the step C, the hot-pressing pressure during the hot-pressing molding is 19.0-19.5MPa, the hot-pressing temperature is 190-.
The depth of sanding treatment is 1.4-1.6 mm.
Example 2. A green and efficient preparation method of a camphorwood fiberboard comprises the following steps:
A. uniformly spraying a limestone powder layer on the lower surface of the pressing plate of the hot press to obtain an improved hot press A;
B. preparing a camphorwood fiberboard blank, and spraying a limestone powder layer on the upper surface of the camphorwood fiberboard blank to obtain a board blank B;
C. carrying out hot press molding on the board blank B by using a hot press A to obtain a camphorwood fiberboard semi-finished product;
D. and sanding the surface of the camphor wood fiberboard semi-finished product to obtain a camphor wood fiberboard finished product.
And D, uniformly spraying limestone powder on corresponding positions of the limestone powder layer in the step A and the limestone powder layer in the step B in a vacuum spray gun mode.
The mesh number of the limestone powder is 1500 meshes.
The paving thickness of the limestone powder layer in the step A and the step B is 1.5 mm.
The preparation process of the camphorwood fiberboard blank comprises the following steps: gluing the camphorwood fibers, and paving and assembling the glued camphorwood fibers to obtain a camphorwood fiberboard blank.
The used adhesive is urea-formaldehyde resin adhesive, and the adhesive application amount per cubic meter of the fiber board is 210 kg.
In the step C, the hot-pressing pressure during hot-pressing molding is 19.5MPa, the hot-pressing temperature is 190 ℃, and the hot-pressing time is 300 s.
The depth of the sanding treatment was 1.5 mm.
The comparative examples (conventional preparation method) were: limestone powder layers are not sprayed on the surface of the plate blank and the lower surface of the pressing plate of the hot press; the camphorwood fiberboard blank was prepared using the same blank preparation method as in example 2 except that the glue application amount was 220kg/m3Obtaining a plate blank; hot-pressing the plate blank in the same manner as in example 2, wherein the hot-pressing pressure is 19.5MPa, and the hot-pressing temperature is 190 ℃, and the difference is that the traditional hot-pressing time is 313 seconds, so as to obtain a camphorwood fiberboard semi-finished product; and sanding the semi-finished camphor wood fiberboard product to a thickness of 2.5mm to obtain a camphor wood fiberboard product.
TABLE 1 comparison of the properties of the products obtained by the conventional preparation method (comparative example) and example 2
TABLE 2 cleaning of the gellan gum from the hot press using the conventional preparation method (comparative example) and the method of EXAMPLE 2
As can be seen from tables 1 and 2, the internal bonding strength of the camphorwood fiberboard product prepared in example 2 of the present invention is improved by 20%, the surface bonding strength is improved by 18%, and the water absorption thickness expansion rate is reduced by 20%; the sanding thickness of the product before leaving factory is reduced by 40 percent. The phenomenon of the glue bonding of the press plate of the press is effectively relieved, the stop period for cleaning the glue bonding of the press plate of the press is prolonged by 3 times, and the time consumption for cleaning the press plate once is reduced by 70%.
Claims (8)
1. The green and efficient preparation method of the camphorwood fiberboard is characterized by comprising the following steps:
A. uniformly spraying a limestone powder layer on the lower surface of the pressing plate of the hot press to obtain an improved hot press A;
B. preparing a camphorwood fiberboard blank, and spraying a limestone powder layer on the upper surface of the camphorwood fiberboard blank to obtain a board blank B;
C. carrying out hot press molding on the board blank B by using a hot press A to obtain a camphorwood fiberboard semi-finished product;
D. and sanding the surface of the camphor wood fiberboard semi-finished product to obtain a camphor wood fiberboard finished product.
2. The green and efficient preparation method of the camphorwood fiber board according to claim 1, wherein the limestone powder layer in the step a and the limestone powder layer in the step B are uniformly sprayed on corresponding positions by a vacuum spray gun.
3. The green and efficient preparation method of the camphorwood fiber board according to claim 2, wherein the limestone powder has a mesh size of less than 2000 meshes.
4. The green and efficient preparation method of the camphorwood fiberboard according to claim 1, which is characterized by comprising the following steps: the paving thickness of the limestone powder layer in the step A and the step B is 1.5 +/-0.3 mm.
5. The green and efficient preparation method of the camphorwood fiberboard of claim 1, wherein the preparation process of the camphorwood fiberboard blank comprises the following steps: gluing the camphorwood fibers, and paving and assembling the glued camphorwood fibers to obtain a camphorwood fiberboard blank.
6. The green and efficient preparation method of the camphorwood fiber board as claimed in claim 5, wherein the used adhesive is urea-formaldehyde resin adhesive, and the amount of the applied adhesive is 210-215kg per cubic meter of the fiber board.
7. The green and efficient preparation method of the camphorwood fiberboard according to claim 1, which is characterized by comprising the following steps: in the step C, the hot-pressing pressure during the hot-pressing molding is 19.0-19.5MPa, the hot-pressing temperature is 190-.
8. The green and efficient preparation method of the camphorwood fiberboard according to claim 1, which is characterized by comprising the following steps: the depth of sanding treatment is 1.4-1.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110684058.2A CN113263582A (en) | 2021-06-21 | 2021-06-21 | Green and efficient preparation method of camphorwood fiberboard |
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| CN202110684058.2A CN113263582A (en) | 2021-06-21 | 2021-06-21 | Green and efficient preparation method of camphorwood fiberboard |
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| CN108748596A (en) * | 2018-08-09 | 2018-11-06 | 福建省永安林业（集团）股份有限公司永安人造板厂 | A kind of preparation method for the fiberboard avoiding generating gum spot on steel band |
| CN109773933A (en) * | 2019-03-08 | 2019-05-21 | 李振洋 | A kind of preparation method of formaldehydeless environmental protection density plate |
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2021
- 2021-06-21 CN CN202110684058.2A patent/CN113263582A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1368528A (en) * | 2001-01-31 | 2002-09-11 | 日本聚氨酯工业株式会社 | Adhesive composition for lignin cellulose type hot-press forming body and producing method of hot-press forming body |
| CN1473691A (en) * | 2003-06-11 | 2004-02-11 | 四川国栋建设股份有限公司 | Medium and high density artificial board of stalk and producing process and use |
| CN101224965A (en) * | 2008-01-21 | 2008-07-23 | 北京格物创道科技发明有限公司 | Biomass composite material wall modules and processing technology thereof |
| CN102862205A (en) * | 2011-07-04 | 2013-01-09 | 长沙创远环保科技有限公司 | Production process method and uses of straw board |
| CN103419272A (en) * | 2012-05-23 | 2013-12-04 | 北京天工创道建筑科技有限公司 | Biomass ecological health-care wall module and preparing method thereof |
| CN104690796A (en) * | 2013-12-09 | 2015-06-10 | 哈尔滨欧麦克科技开发有限公司 | Method for manufacturing health decorative board by camphor tree raw material |
| CN205369813U (en) * | 2016-01-29 | 2016-07-06 | 王勇 | Generate heat ground plate structure |
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Application publication date: 20210817 |
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