CN1544219A - Manufacturing method of imitation laminated wood board using straw plate as core plate - Google Patents
Manufacturing method of imitation laminated wood board using straw plate as core plate Download PDFInfo
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- CN1544219A CN1544219A CNA200310106244XA CN200310106244A CN1544219A CN 1544219 A CN1544219 A CN 1544219A CN A200310106244X A CNA200310106244X A CN A200310106244XA CN 200310106244 A CN200310106244 A CN 200310106244A CN 1544219 A CN1544219 A CN 1544219A
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- board
- compressed straw
- face ply
- core
- straw slab
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Abstract
The invention discloses an imitation fine wood block making method using straw board as core board, containing the following steps: rubbing flat processing of surface of the straw board; coating glue on tow surface of the single board of subsurface layer; according to 5-layer structure, composing a blank, where the straw board is the core layer, the subsurface layer is a thick single board with two surfaces coated with glue, and the surface layer is a thin single board; compounding them by heat pressing. It uses straw board as core board to replace large core board composed by gluing wood (or not gluing), make reasonable use of waste straw resources, able to save wood, protect environment and reduce production cost. It has simple process and high productivity. The made wood block meets standard requirements and the release of dissociative formaldehyde can meet Fcl level.
Description
Technical field
The invention belongs to joiner sheet material technical field, relating to a kind of is the imitative core-board manufacture method of central layer with the compressed straw slab.
Background technology
At present, the core-board production technology is to adopt the method for strip solid wood splicing to make lumber core, and the production technology of two-layer veneer is respectively covered on the two sides, complex manufacturing, the timber volume recovery is lower, and is improper as drying, the easy buckling deformation of sheet material, the core-board transverse strength of making is relatively poor.In addition, the core-board product all is used for furniture manufacturing and interior decoration basically, and the core-board burst size of methanal that conventional method is made is often higher, influences the healthy of occupant.
Summary of the invention
The purpose of this invention is to provide a kind ofly can reduce production costs, technology is simple, what environmental-protection function was arranged is the imitative core-board manufacture method of central layer with the compressed straw slab.
Purpose of the present invention can realize by following manner:
A kind of is that the imitative core-board manufacture method of central layer comprises the following step with the compressed straw slab:
A. the compressed straw slab sanding surface is handled;
B. inferior face ply double spread;
C. assembly: carry out assembly according to 5 layers of structure, compressed straw slab is a sandwich layer, and inferior top layer is the thick veneer of double spread, and the top layer is a thin veneer;
D. hot pressing is compound.
Purpose of the present invention can also realize by following manner:
Described is that the straw plate thickness is 8～16mm in the imitative core-board manufacture method of central layer with the compressed straw slab, and inferior face ply thickness is 1.8～3.0mm, and face ply thickness is 0.25～0.5mm.
Described is that time face ply double spread amount is 280～300g/m in the imitative core-board manufacture method of central layer with the compressed straw slab
2
Described with the compressed straw slab be in the imitative core-board manufacture method of central layer during assembly the face ply texture consistent with sandwich layer compressed straw slab length direction, inferior face ply texture is vertical mutually with the face ply texture.
Described is 105-120 ℃ of hot pressing compound tense hot pressing temperature in the imitative core-board manufacture method of central layer with the compressed straw slab, and hot pressing time 6-10min, hot pressing pressure are 0.8-1.2Mpa.
Described is that time face ply gluing adopts the E1 grade urea-formaldehyde resin adhesive in the imitative core-board manufacture method of central layer with the compressed straw slab.
Advantage of the present invention:
Utilize compressed straw slab as core material, with the lumber core of solid wood splicing (or not splicing), rationally utilized the straw resource of agriculture waste during alternative traditional core-board is produced, can save timber, the protection environment reduces production costs.This manufacturing approach craft is simple, production efficiency is high, the imitative core-board that produces, and the physical and mechanical property index satisfies the requirement of wooden core-board standard, and free formaldehyde release satisfies the Fc1 level, selects suitable glue kind and mask-making technology also can reach the Fc0 level.
Figure of description
Fig. 1 is the imitative core-board structural representation of core material with the compressed straw slab.
The specific embodiment
Embodiment 1
The preparation of compressed straw slab: the straw medium-density plate that outsourcing comes, specification is 1220mm * 2440mm, and thickness is 12mm, and density is 0.71g/cm
3For improving compressed straw slab surface quality and surperficial glue performance, the reply compressed straw slab carries out sanding before assembly, adopts two sand frame plywood production with carrying out sanding surface on the sander, and the two total surface sand amounts of cutting are 0.1mm.Compressed straw slab after the sanding adopts the method for hand sweeping to carry out the surface cleaning, prevents that sanding dusts from investing the plank surface and influencing bonding strength.
Veneer is prepared: face ply (dash board and backboard) adopts Okoume rotary cut venner, thickness 0.50mm, moisture content 10%; Inferior face ply is the masson pine rotary cut venner, and moisture content is 8% before the thickness 1.8mm, gluing.Inferior face ply gluing adopts four roller glue spreaders to carry out the veneer double spread, and glue-spread is 300g/m
2, adhesive adopts the E1 grade urea-formaldehyde resin adhesive.
Assembly: ready panel, the inferior face ply that was coated with glue and compressed straw slab are carried out assembly according to five-layer structure shown in Figure 1 (1 is that compressed straw slab sandwich layer, 2 is that time face ply, 3 is face ply among the figure), the face ply texture is consistent with sandwich layer compressed straw slab length direction, and inferior face ply texture is vertical mutually with the face ply texture.
Hot pressing: will organize good slab and send into that to carry out hot pressing in the hot press compound, 105 ℃ of hot pressing temperatures, hot pressing pressure is got 1.0Mpa, and hot pressing time is got 8min.After hot pressing is finished, plank is drawn off from hot press, and cool off and stack, carry out sanding surface behind the stacking 48h.Its moisture content, bonding strength, horizontal MOR all reach the requirement of core-board in the GB/T 5849-1999 standard after testing, burst size of methanal reaches Fc1 level artificial board formaldehyde release standard, the results are shown in Table 1 (wherein standard value is the standard value during the core-board different-thickness in the GB/T 5849-1999 standard, down with).
Table 1 is the imitative core-board performance of core material with the compressed straw slab
| Project | Imitative core-board according to embodiment 1 making | Standard value (thickness≤14mm) |
| Moisture content (%) | ????9.4 | ????6-14 |
| Horizontal MOR (MPa) | ????25.32 | ????≥25.0 |
| Bonding strength (MPa) | ????0.83 | ????≥0.70 |
| Free formaldehyde (mg/L) | ????0.29 | ????≤1.5 |
The preparation of compressed straw slab: the straw medium-density plate that outsourcing comes, specification is 1220mm * 2440mm, and thickness is 8mm, and density is 0.71g/cm
3For improving compressed straw slab surface quality and surperficial glue performance, the reply compressed straw slab carries out sanding before assembly, adopts two sand frame plywood production with carrying out sanding surface on the sander, and the two total surface sand amounts of cutting are 0.1mm.Compressed straw slab after the sanding adopts the method for hand sweeping to carry out the surface cleaning, prevents that sanding dusts from investing the plank surface and influencing bonding strength.
Veneer is prepared: face ply (dash board and backboard) adopts Okoume rotary cut venner, thickness 0.5mm, moisture content 10%; Inferior face ply is the larch rotary cut venner, and moisture content is 8% before the thickness 3.0mm, gluing.Inferior face ply gluing adopts four roller glue spreaders to carry out the veneer double spread, and glue-spread is 280g/m
2, adhesive adopts the E1 grade urea-formaldehyde resin adhesive.
Assembly: ready panel, the inferior face ply that was coated with glue and compressed straw slab are carried out assembly according to five-layer structure shown in Figure 1 (1 is that compressed straw slab sandwich layer, 2 is that time face ply, 3 is face ply among the figure), the face ply texture is consistent with sandwich layer compressed straw slab length direction, and inferior face ply texture is vertical mutually with the face ply texture.
Hot pressing: will organize good slab and send into that to carry out hot pressing in the hot press compound, 120 ℃ of hot pressing temperatures, hot pressing pressure is got 1.2Mpa, and hot pressing time is got 10min.After hot pressing is finished, plank is drawn off from hot press, and cool off and stack, carry out sanding surface behind the stacking 48h.Its moisture content, bonding strength, horizontal MOR all reach the requirement of core-board in the GB/T 5849-1999 standard after testing, and burst size of methanal reaches Fc1 level artificial board formaldehyde release standard, the results are shown in Table 2.
Table 2 is the imitative core-board performance of core material with the compressed straw slab
| Project | Imitative core-board according to | Standard value (thickness≤14mm) |
| Moisture content (%) | ????8.5 | ????6-14 |
| Horizontal MOR (MPa) | ????35.75 | ????≥25.0 |
| Bonding strength (MPa) | ????0.94 | ????≥0.70 |
| Free formaldehyde (mg/L) | ????0.18 | ????≤1.5 |
The preparation of compressed straw slab: the straw medium-density plate that outsourcing comes, specification is 1220mm * 2440mm, and thickness is 16mm, and density is 0.71g/cm
3For improving compressed straw slab surface quality and surperficial glue performance, the reply compressed straw slab carries out sanding before assembly, adopts two sand frame plywood production with carrying out sanding surface on the sander, and the two total surface sand amounts of cutting are 0.1mm.Compressed straw slab after the sanding adopts the method row surface cleaning of machine cleaning, prevents that sanding dusts from investing the plank surface and influencing bonding strength.
Veneer is prepared: face ply (dash board and backboard) adopts Okoume rotary cut venner, thickness 0.25mm, moisture content 10%; Inferior face ply is the masson pine rotary cut venner, and moisture content is 8% before the thickness 1.8mm, gluing.Inferior face ply gluing adopts four roller glue spreaders to carry out the veneer double spread, and glue-spread is 290g/m
2, adhesive adopts the E1 grade urea-formaldehyde resin adhesive.
Assembly: ready panel, the inferior face ply that was coated with glue and compressed straw slab are carried out assembly according to five-layer structure shown in Figure 1 (1 is that compressed straw slab sandwich layer, 2 is that time face ply, 3 is face ply among the figure), the face ply texture is consistent with sandwich layer compressed straw slab length direction, and inferior face ply texture is vertical mutually with the face ply texture.
Hot pressing: will organize good slab and send into that to carry out hot pressing in the hot press compound, 110 ℃ of hot pressing temperatures, hot pressing pressure is got 0.9Mpa, and hot pressing time is got 6min.After hot pressing is finished, plank is drawn off from hot press, and cool off and stack, carry out sanding surface behind the stacking 48h.Its moisture content, bonding strength, horizontal MOR all reach the requirement of core-board in the GB/T 5849-1999 standard after testing, and burst size of methanal reaches Fc1 level artificial board formaldehyde release standard, the results are shown in Table 3.
Table 3 is the imitative core-board performance of core material with the compressed straw slab
| Project | Imitative core-board according to | Standard value (thickness＞19mm) |
| Moisture content (%) | ????10.4 | ????6-14 |
| Horizontal MOR (MPa) | ????22.54 | ????≥20.0 |
| Bonding strength (MPa) | ????0.87 | ????≥0.80 |
| Free formaldehyde (mg/L) | ????0.24 | ????≤1.5 |
Claims (6)
1, a kind of is the imitative core-board manufacture method of central layer with the compressed straw slab, it is characterized in that comprising the following step:
A. the compressed straw slab sanding surface is handled;
B. inferior face ply double spread;
C. assembly: carry out assembly according to 5 layers of structure, compressed straw slab is a sandwich layer, and inferior top layer is the thick veneer of double spread, and the top layer is a thin veneer;
D. hot pressing is compound.
2, according to claim 1 is the imitative core-board manufacture method of central layer with the compressed straw slab, it is characterized in that compressed straw slab thickness is 8～16mm, and inferior face ply thickness is 1.8～3.0mm, and face ply thickness is 0.25～0.5mm.
3, according to claim 1 is the imitative core-board manufacture method of central layer with the compressed straw slab, it is characterized in that time face ply double spread amount is 280～300g/m
2
4, according to claim 1 is the imitative core-board manufacture method of central layer with the compressed straw slab, and the face ply texture is consistent with sandwich layer compressed straw slab length direction when it is characterized in that assembly, and inferior face ply texture is vertical mutually with the face ply texture.
5, according to claim 1 is the imitative core-board manufacture method of central layer with the compressed straw slab, it is characterized in that 105-120 ℃ of hot pressing compound tense hot pressing temperature, and hot pressing time 6-10min, hot pressing pressure are 0.8-1.2Mpa.
6, according to claim 1 or 3 described be the imitative core-board manufacture method of central layer with the compressed straw slab, it is characterized in that time face ply gluing adopts the E1 grade urea-formaldehyde resin adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200310106244XA CN1544219A (en) | 2003-11-11 | 2003-11-11 | Manufacturing method of imitation laminated wood board using straw plate as core plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200310106244XA CN1544219A (en) | 2003-11-11 | 2003-11-11 | Manufacturing method of imitation laminated wood board using straw plate as core plate |
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| CN1544219A true CN1544219A (en) | 2004-11-10 |
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| CNA200310106244XA Pending CN1544219A (en) | 2003-11-11 | 2003-11-11 | Manufacturing method of imitation laminated wood board using straw plate as core plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364733C (en) * | 2006-03-07 | 2008-01-30 | 北京林业大学 | Production process of core plate for joinery plate |
| CN102085677A (en) * | 2010-11-23 | 2011-06-08 | 南京林业大学 | New process for producing wooden composite material by using waste and used plywood cement templates |
| CN102501283A (en) * | 2011-11-23 | 2012-06-20 | 东北林业大学 | Facing decoration method utilizing wheat straws |
| CN105904527A (en) * | 2016-04-22 | 2016-08-31 | 南京林业大学 | Production process of strawboard base material veneer |
| CN107199603A (en) * | 2017-06-27 | 2017-09-26 | 界首市胜满亿木业有限公司 | A kind of processing method for improving bending wooden clothes tree weatherability |
| CN110696118A (en) * | 2019-11-12 | 2020-01-17 | 石家庄华杰木业有限公司 | Impregnated bond paper facing laminated wood board with filling layer and manufacturing method thereof |
| CN114559513A (en) * | 2022-02-28 | 2022-05-31 | 重庆市江星木业有限公司 | Building template processing method |
| CN114630741A (en) * | 2019-11-29 | 2022-06-14 | 松下知识产权经营株式会社 | Method for manufacturing laminated wood board |
-
2003
- 2003-11-11 CN CNA200310106244XA patent/CN1544219A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364733C (en) * | 2006-03-07 | 2008-01-30 | 北京林业大学 | Production process of core plate for joinery plate |
| CN102085677A (en) * | 2010-11-23 | 2011-06-08 | 南京林业大学 | New process for producing wooden composite material by using waste and used plywood cement templates |
| CN102085677B (en) * | 2010-11-23 | 2013-05-22 | 南京林业大学 | New process for producing wooden composite material by using waste and used plywood cement templates |
| CN102501283A (en) * | 2011-11-23 | 2012-06-20 | 东北林业大学 | Facing decoration method utilizing wheat straws |
| CN105904527A (en) * | 2016-04-22 | 2016-08-31 | 南京林业大学 | Production process of strawboard base material veneer |
| CN107199603A (en) * | 2017-06-27 | 2017-09-26 | 界首市胜满亿木业有限公司 | A kind of processing method for improving bending wooden clothes tree weatherability |
| CN107199603B (en) * | 2017-06-27 | 2019-11-08 | 界首市胜满亿木业有限公司 | A kind of processing method improving bending wooden clothes tree weatherability |
| CN110696118A (en) * | 2019-11-12 | 2020-01-17 | 石家庄华杰木业有限公司 | Impregnated bond paper facing laminated wood board with filling layer and manufacturing method thereof |
| CN114630741A (en) * | 2019-11-29 | 2022-06-14 | 松下知识产权经营株式会社 | Method for manufacturing laminated wood board |
| CN114559513A (en) * | 2022-02-28 | 2022-05-31 | 重庆市江星木业有限公司 | Building template processing method |
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