CN103317576A - Manufacturing method of wide-breadth carbonized board - Google Patents
Manufacturing method of wide-breadth carbonized board Download PDFInfo
- Publication number
- CN103317576A CN103317576A CN2013101407612A CN201310140761A CN103317576A CN 103317576 A CN103317576 A CN 103317576A CN 2013101407612 A CN2013101407612 A CN 2013101407612A CN 201310140761 A CN201310140761 A CN 201310140761A CN 103317576 A CN103317576 A CN 103317576A
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- blanket
- fast growing
- growing wood
- small powder
- charing
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Abstract
The invention discloses a manufacturing method of a wide-breadth carbonized board, which comprises the following steps: A. material preparing; B. tenoning; C. lengthwise and widthwise splicing; D. sanding and edge cutting on a board blank ; E, hot-press densification treatment on the board blank; F. carbonizing treatment. The manufacturing method of a finger joint laminated board, provided by the invention, is simple in technology; the finger joint laminated board manufactured according to the method has high structural strength, good stability and low adhesive consumption.
Description
Technical field
The present invention relates to decorative materials technology, relate in particular a kind of manufacture method of large format charing plate.
Background technology
Regulation according to GB/T21140-2007, finger joint lumber refers to take sawn timber as raw material through the plate square bar that refers to that tenon processing, gummed spreading are made, again with the plate square bar made on the width by the glue bonding after, piece together the wide finger-jointed plate of making, the raw material that uses is generally take fast growing wood as main, wherein use at most with poplar, intensity difference, case hardness are low, so that finger-jointed plate only is used for the position that furniture back plate etc. is hidden, do not stress, do not need intensity at present.The way of main flow is to overcome sheet deformation by changing the tooth-shape structure of piecing together cross direction at present, for example the disclosure of the invention shown in application publication number CN 102192395 A, the Shen Qing Publication day 2011.09.21 a kind of finger-jointed plate, this finger-jointed plate comprises the finger bar that is spliced by multistage sawtooth short slab, and the bonding plane between its finger bar is the inclined-plane.The finger-jointed plate of this invention by the bonding plane between the finger bar is designed to the inclined-plane, has increased the bonding and lifting surface area between the finger bar, so that finger-jointed plate is bonding more firm and in use more not easy to crack.But, even change the adhesive surface between the finger bar into inclined-plane, after making finger-jointed plate, the whole stability of plates of finger-jointed plate should be not, seam crossing is not tight, and glue shrinks easily and depression occurs at seam crossing after the hot pressing, the restriction that these problems are serious the application of finger-jointed plate in end product.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art part, a kind of manufacture method of large format charing plate is provided, its finger-jointed plate structural strength of making is high, and stability is good, and resin added is few.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: a kind of manufacture method of large format charing plate may further comprise the steps:
A. get the raw materials ready; Fast growing wood is sawn into the fast growing wood small powder of required specification, adjusts fast growing wood small powder moisture content to 8-12%;
B. mortise; Two opposite flanks at fast growing wood small powder width make tongue-and-groove, joint tongue, and applying glue;
C. piece together long assembly wide; Sized fast growing wood small powder is at the length direction spreading, wide in the assembly of fast growing wood small powder width, make blanket;
D. blanket sanding and cutting edge; Blanket is carried out two-sided sanding and washed ore to required flatness;
E. blanket heat pressing compact processing; Blanket is put into hot press carry out hot pressing, hot pressing temperature is 140-220 ℃, and the time is 10-40min, and pressure is
0.05-0.13Mpa/ ㎡
F. charing is processed; Blanket after the hot pressing is carried out charing process, carbonization temperature is 160-230 ℃, carbonization time 2-5h;
G. moisture content adjustment; Blanket moisture content after the charing is adjusted to 5-12%;
H. whole plate sanding and cutting edge.
Manufacture method of the present invention, be suitable for the 4*8 chi, 6*8 chi or larger sized fast growing wood finger-jointed plate are made, fast growing wood is generally take poplar as main, the fast growing wood finger-jointed plate good stability of making, structural strength is high, case hardness is large, technique is simple, the applicant is through repetition test, find after the research, before the existing finger-jointed plate processing, the fast growing wood small powder is generally only just directly made finger-jointed plate through after the conventional drying, this is just so that each fast growing wood small powder moisture content differentiation, moisture content is unbalanced, and distortion in use very easily appears in prepared finger-jointed plate, and structural strength is low, and finger-jointed plate of the present invention, be to carry out the charing processing after the fast growing wood small powder is spliced into blanket hot pressing, stability is good again, and moisture content is balanced, further improve its dimensional stability, when mold pressing was carried out in mold pressing, seam crossing did not have glue to shrink the depression that forms, and has reduced the use amount of glue yet.
As preferably, among the described step B, mortise; Two opposite flanks at fast growing wood small powder length direction also make tongue-and-groove, joint tongue, and applying glue.
Such mode so that the fast growing wood small powder all is joggle at length direction and width, has namely realized fast growing wood small powder four-way joggle and has made finger-jointed plate that such structure can improve the structural strength of making finger-jointed plate.
As preferably, in described step B, institute's applying glue prescription is as follows:
Glue 99-99.7wt%;
Microspheres 0.05-0.1 wt%;
Silicon ash 0.15-0.55 wt%;
Iron powder 0.1-0.35 wt%.
How to connect fastening between the fast growing wood small powder be in the industry a difficult problem always, existing mode all is to rely on glue to bond in the industry, in order to obtain the better bond effect that compares, processing request to adhesive surface is very high, even like this, effect is not still advanced people's will, the applicant is through repetition test, find after the research, in common glue, add an amount of microspheres, silicon ash and iron powder, utilize microspheres expansion at a certain temperature, it is large that volume becomes, so that joint tongue is connected connection with tongue-and-groove more fastening, silicon ash and iron powder can be filled up the gap after microspheres expands, simultaneously, iron powder can also thrust in the fast growing wood small powder, further strengthens connecting effect, seam crossing does not have glue to shrink the depression that forms, so that the finger-jointed plate fastness of making is very good.
As preferably, described microspheres diameter is 2-3 μ m, and described silicon ash average grain diameter is at 0.1-0.3 μ m, and described iron powder is the impalpable powder of 5-10 μ m.
As preferably, in the described steps A, the moisture content deviation is no more than 2% between the fast growing wood small powder.
Moisture content between each fast growing wood small powder is controlled, problem on deformation occurred after can preventing from being spliced into finger-jointed plate.
As preferably, in the described step e, when blanket is carried out hot pressing, elastic clamping is carried out in two opposite flanks of blanket length direction and two opposite flanks of width, the elastic shrinkage amount of two opposite flank elastic clampings of length direction is 1-2mm, and the elastic shrinkage amount of two opposite flank elastic clampings of width is 0.5-1mm.
When utilizing hot press that blanket is carried out hot pressing, because it is spliced by the fast growing wood small powder, easily mobile laterally under pressure, cause the grey cloth packing that presses out inadequate, the slit is large, structural strength is low, for this reason, we clamp grey cloth length direction and width, like this, guaranteed structural strength and the density of grey cloth, seam crossing does not have glue to shrink the depression that forms, and be the elastic clamping with certain elastic shrinkage amount, further guaranteed density and the fastness of grey cloth.
Beneficial effect of the present invention is:
Manufacture method of the present invention, technique is simple, and its finger-jointed plate structural strength of making is high, and stability is good, and resin added is few.
The specific embodiment
The following stated is preferred embodiment of the present invention only, is not that scope of the present invention is limited.
Embodiment 1, and a kind of manufacture method of large format charing plate may further comprise the steps:
A. get the raw materials ready; The poplar fast growing wood is sawn into the fast growing wood small powder of required specification, adjusts fast growing wood small powder moisture content to 8-12%, the moisture content deviation is no more than 2% between the fast growing wood small powder.；
B. mortise; Make tongue-and-grooves, joint tongue in two opposite flanks of fast growing wood small powder length direction and two opposite flanks of width, and applying glue;
C. piece together long assembly wide; First with sized fast growing wood small powder at the length direction spreading, piece together again widely at fast growing wood small powder width, make blanket;
D. blanket sanding and cutting edge; Blanket is carried out two-sided sanding and washed ore to required flatness, and around cutting to required size;
E. blanket heat pressing compact processing; Blanket is put into hot press carry out hot pressing, hot pressing temperature is 140-220 ℃, and the time is 10-40min, and pressure is
0.05-0.13Mpa/ ㎡
F. charing is processed; Blanket after the hot pressing is carried out charing process, carbonization temperature is 160-230 ℃, carbonization time 2-5h;
G. moisture content adjustment; Blanket moisture content after the charing is adjusted to 5-12%;
H. whole plate sanding and cutting edge.
In described step B, institute's applying glue prescription is as follows:
Glue 99-99.7 part;
Microspheres 0.05-0.1 part;
Silicon ash 0.15-0.55 part;
Iron powder 0.1-0.35 part; Get final product after said components mixed;
Described microspheres diameter is 2-3 μ m, and described silicon ash average grain diameter is at 0.1-0.3 μ m, and described iron powder is the impalpable powder of 5-10 μ m.
In the described step e, when blanket is carried out hot pressing, elastic clamping is carried out in two opposite flanks of blanket length direction and two opposite flanks of width, the elastic shrinkage amount of two opposite flank elastic clampings of length direction is 1-2mm, wherein take 1mm as good, the elastic shrinkage amount of two opposite flank elastic clampings of width is 0.5-1mm, wherein, and take 0.6mm as good.
Embodiment 2, and a kind of manufacture method of large format charing plate may further comprise the steps:
A. get the raw materials ready; Fast growing wood is sawn into the fast growing wood small powder of required specification, adjusts fast growing wood small powder moisture content to 8%, the moisture content deviation is 1% between the fast growing wood small powder.；
B. mortise; Make tongue-and-grooves, joint tongue in two opposite flanks of fast growing wood small powder length direction and two opposite flanks of width, and applying glue;
C. piece together long assembly wide; First with sized fast growing wood small powder at the length direction spreading, piece together again widely at fast growing wood small powder width, make blanket;
D. blanket sanding and cutting edge; Blanket is carried out two-sided sanding and washed ore to required flatness, and around cutting to required size;
E. blanket heat pressing compact processing; Blanket is put into hot press carry out hot pressing, hot pressing temperature is 180 ℃, and the time is 20min, and pressure is 0.13MPa;
F. charing is processed; Blanket after the hot pressing is carried out charing process, carbonization temperature is 200 ℃, carbonization time 4h;
G. moisture content adjustment; Blanket moisture content after the charing is adjusted to 12%;
H. whole plate sanding and cutting edge.
In described step B, institute's applying glue prescription is as follows:
99 parts in glue;
0.1 part of microspheres;
0.55 part of silicon ash;
0.35 part of iron powder; Get final product after said components mixed;
Described microspheres diameter is 2-3 μ m, and described silicon ash average grain diameter is at 0.1-0.3 μ m, and described iron powder is the impalpable powder of 5-10 μ m.
In the described step e, when blanket is carried out hot pressing, elastic clamping is carried out in two opposite flanks of blanket length direction and two opposite flanks of width, the elastic shrinkage amount of two opposite flank elastic clampings of length direction is 1.5mm, and the elastic shrinkage amount of two opposite flank elastic clampings of width is 1mm.
Above explanation only is explanation of the invention, so that complete enforcement this programme of those of ordinary skills' energy, but be not limitation of the present invention, those skilled in the art can make the modification that does not have creative contribution to the present embodiment as required after reading this specification, these all are not creative modifications.But as long as in claim scope of the present invention, all be subject to the protection of Patent Law.
Claims (4)
1. the manufacture method of a large format charing plate is characterized in that may further comprise the steps:
A. get the raw materials ready; Fast growing wood is sawn into the fast growing wood small powder of required specification, adjusts fast growing wood small powder moisture content to 8-12%;
B. mortise; Two opposite flanks at fast growing wood small powder width make tongue-and-groove, joint tongue, and applying glue;
C. piece together long assembly wide; Sized fast growing wood small powder is at the length direction spreading, wide in the assembly of fast growing wood small powder width, make blanket;
D. blanket sanding and cutting edge; Blanket is carried out two-sided sanding and washed ore to required flatness;
E. blanket heat pressing compact processing; Blanket is put into hot press carry out hot pressing, hot pressing temperature is 140-220 ℃, and the time is 10-40min, and pressure is
0.05-0.13Mpa/ ㎡
F. charing is processed; Blanket after the hot pressing is carried out charing process, carbonization temperature is 160-230 ℃, carbonization time 2-5h;
G. moisture content adjustment; Blanket moisture content after the charing is adjusted to 5-12%;
H. whole plate sanding and cutting edge.
2. the manufacture method of a kind of large format charing plate according to claim 1, it is characterized in that: in the described steps A, the moisture content deviation is no more than 2% between the fast growing wood small powder.
3. the manufacture method of a kind of large format charing plate according to claim 1 is characterized in that: among the described step B, and mortise; Two opposite flanks at fast growing wood small powder length direction also make tongue-and-groove, joint tongue, and applying glue.
4. the manufacture method of a kind of large format charing plate according to claim 1, it is characterized in that: in the described step e, when blanket is carried out hot pressing, elastic clamping is carried out in two opposite flanks of blanket length direction and two opposite flanks of width, the elastic shrinkage amount of two opposite flank elastic clampings of length direction is 1-2mm, and the elastic shrinkage amount of two opposite flank elastic clampings of width is 0.5-1mm.
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| CN201310140761.2A CN103317576B (en) | 2013-04-23 | 2013-04-23 | A kind of manufacture method of large format charing plate |
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| CN201310140761.2A CN103317576B (en) | 2013-04-23 | 2013-04-23 | A kind of manufacture method of large format charing plate |
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| CN103317576A true CN103317576A (en) | 2013-09-25 |
| CN103317576B CN103317576B (en) | 2015-12-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926339A (en) * | 2015-12-30 | 2017-07-07 | 广州厚邦木业制造有限公司 | A kind of manufacturing process for carbonizing fast-growing eucalyptus plate |
| CN107972137A (en) * | 2017-11-30 | 2018-05-01 | 广西壮象木业有限公司 | A kind of production technology of solid wood ecological plate |
| CN107984564A (en) * | 2017-11-30 | 2018-05-04 | 广西壮象木业有限公司 | A kind of solid wood ecological plate flatness control method |
| CN108943286A (en) * | 2018-06-20 | 2018-12-07 | 浙江省林业科学研究院 | A kind of manufacturing method of corner timber production design dalle |
| CN109366670A (en) * | 2018-12-14 | 2019-02-22 | 贵州省林业科学研究院 | A kind of processing method of rapid densification charing enhancing wood performance |
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| JPH01271203A (en) * | 1988-04-23 | 1989-10-30 | Matsushita Electric Works Ltd | Manufacture of modified wood |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926339A (en) * | 2015-12-30 | 2017-07-07 | 广州厚邦木业制造有限公司 | A kind of manufacturing process for carbonizing fast-growing eucalyptus plate |
| CN107972137A (en) * | 2017-11-30 | 2018-05-01 | 广西壮象木业有限公司 | A kind of production technology of solid wood ecological plate |
| CN107984564A (en) * | 2017-11-30 | 2018-05-04 | 广西壮象木业有限公司 | A kind of solid wood ecological plate flatness control method |
| CN108943286A (en) * | 2018-06-20 | 2018-12-07 | 浙江省林业科学研究院 | A kind of manufacturing method of corner timber production design dalle |
| CN109366670A (en) * | 2018-12-14 | 2019-02-22 | 贵州省林业科学研究院 | A kind of processing method of rapid densification charing enhancing wood performance |
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| CN103317576B (en) | 2015-12-02 |
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