CN201808110U - Glued bamboo board - Google Patents
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- CN201808110U CN201808110U CN2010202700392U CN201020270039U CN201808110U CN 201808110 U CN201808110 U CN 201808110U CN 2010202700392 U CN2010202700392 U CN 2010202700392U CN 201020270039 U CN201020270039 U CN 201020270039U CN 201808110 U CN201808110 U CN 201808110U
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Abstract
The utility model relates to a glued bamboo board, in particular to a bamboo board glued by a recombination bamboo board and a bamboo chip glued board, which belongs to the technical field of bamboo development and bamboo board processing. The glued bamboo board comprises an upper surface course, an intermediate course and a lower surface course, wherein both the upper surface course and the lower surface course adopt recombination bamboo boards, and the arrangement direction of bamboo filaments of the recombination bamboo boards is perpendicular to the board surface per se. The glued bamboo board has the advantages of good surface finish, high density, high quality, high static bending strength, high compressive strength, high shock strength, strong surface rigidity, small thickness swelling rate of water absorption, and excellent dimensional stability.
Description
Technical field
The utility model relates to a kind of bamboo plywood, relates in particular to a kind of bamboo clappers of recombinate bamboo clappers and bamboo chip glued board gummed, belongs to bamboo development and bamboo clappers processing technique field.
Background technology
The bamboo clappers of Cun Zaiing is based on simple bamboo chip glued board in the market, and this kind bamboo clappers can be used as the material that furniture is made after can being directly used in indoor and outdoor floor, lagging.The product that also has is with this bamboo chip glued board and veneering.As the patent No. is that 200620104966.0 Chinese utility model patent discloses a kind of bamboo chip veneer composite board, it comprises upper layer, intermediate layer, the following bottom of one deck at least, each contiguous concatenation sewer has binding agent, the splicing seams of each adjacent layer is separated by 90 °, described upper layer and following bottom are the rectangular flat assembly combination of bamboo chip slabbing or flat stacked put combination or intersection establishment combination, and described intermediate layer is that cylindrical strip plant is formed set; The cylindrical strip plant in described intermediate layer is that the tiling combination is integrated.Because the levels of this utility model is by being that bamboo wood is made, so the good fineness of case hardness is good; But the bulk strength of this utility model is not high, and because the density of material is not high, therefore is not suitable for doing top-grade furniture.And for example the patent No. is that 200920105908.3 Chinese utility model patent discloses the bamboo-wood composite board that the super thick rotary cut venner of a kind of usefulness is made, and it comprises central layer, panel and backboard, and described central layer is the super thick rotary-cut plate of 4.5mm～12mm; Described panel and backboard are to be made by bamboo wood, and described central layer comprises that adjacent layer is the described super thick veneer of several layers that rift grain combines, and between adjacent described veneer glue-line is set, and the binding agent of described glue-line is the aquosity polymer isocyanic ester adhesive; The super thick veneer of described sandwich layer is the veneer after overstress enzyme degradation treatment, promptly is formed with the crackle of point-like or wire in the rift grain direction of the loose side of every layer of described veneer.This utility model and the above-mentioned patent No. are that 200620104966.0 Chinese utility model is similar on overall structure, have similar pluses and minuses, various mechanical properties performances still can, but still do not reach the requirement of making high-quality furniture.
In addition, also have on the market mao bamboon rolled the well-thought-out plan silk after, carry out the sheet material that impregnation hot repressing forms again.As application number is that 200820102820.6 Chinese invention patent discloses a kind of reorganization bamboo, the reorganization bamboo assembly forming method of this invention, comprise that with little mao bamboon and various dwarf bamboo be primary raw material, form the cellular construction of bar pencil after treatment, successively with dry after the cellular construction applying glue of bar pencil, push assembly one-tenth by mechanical continuous action again and set the slab of thickness, under certain pressure and temperature, keep a period of time then, form shaping slab with certain tack.And for example the patent No. is the method that 99117809.2 Chinese invention patent discloses a kind of recombining bamboo material into reinforced shapes, puts it briefly, and is to take the broken well-thought-out plan silk of mao bamboon, and impregnation dress mould after drying is in that (10～100MPa) press curing become section bar through high pressure.This method utilization rate of bamboo height, technology is simple, and the section bar of making has the density height, intensity height, the advantage that dimensional stability is good.The common advantage of this class sheet material is the density height, the intensity height, and dimensional stability is good, and the class height although product compression strength and the impact strength of being made by such sheet material is all good purely, but makes product easily cracked in stressed meeting on bamboo silk direction.
The utility model content
The purpose of this utility model is for solving the problems of the technologies described above, a kind of bamboo plywood is provided, and it is big that it has case hardness, compression strength height, not easily broken advantage excellent in cushion effect.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs:
A kind of bamboo plywood comprises upper layer, intermediate layer, surface layer down, described upper layer and the following surface layer group bamboo clappers of attaching most importance to, and the bamboo silk orientation of described reorganization bamboo clappers is with vertical from the body face.
In the utility model technique scheme, because upper layer and following surface layer are recombined bamboo plate, therefore the performance of compression strength and impact strength is all good, cause this sheet material cracked in order to overcome applying power on bamboo silk direction, the utility model designer has increased the intermediate layer and has overcome this shortcoming; This intermediate layer can be a plank, also can be the bamboo chip plate.After having increased this intermediate layer, to make upper layer cracked on bamboo silk direction; except will overcoming resistance intrinsic between the bamboo silk; also to overcome the stiction that bamboo silk and intermediate layer gummed is produced; the size of this stiction is enough to resist in the daily routines all power to this board product applied; and the intensity in intermediate layer itself is also good, resists stressed impact for a kind of bamboo plywood of the utility model support is provided.In addition, the bamboo silk of a kind of bamboo plywood of the utility model is with vertical from the body face, so its anti-pressure ability is strong especially, its principle just like to the horizontal application of force of pillar with consistent to its vertical application of force, make and damage it, then must apply much bigger power to it in the vertical.Because a kind of bamboo plywood global density of the utility model is big, intensity is high, dimensional stability good, so a kind of bamboo plywood of the utility model has excellent mechanical property and outstanding external sensory manifestation, class height, the very suitable top-grade furniture of making.
Preferred as technique scheme, the bamboo silk of described reorganization bamboo clappers comprise through charing with without the bamboo silk of charing.
A kind of bamboo plywood that adopts technique scheme to make, surface smoothness is good; Can form irregular texture alternately through charing with without the bamboo silk of charing, therefore not need paster also not need japanning, have outstanding outward appearance performance, can directly make furniture and use.And the bamboo silk after the process charing has the anti-advantage of damaging by worms of anticorrosion.
As the advantage of technique scheme, described intermediate layer is the bamboo strip side compression glued board.
Further preferred as technique scheme, described intermediate layer is an at least one bamboo chip concora crush glued board.
Further preferred as technique scheme, described intermediate layer is the bamboo chip concora crush glued board more than two or two, the bamboo silk direction of adjacent two bamboo chip concora crush glued board is vertical.
The enforcement of technique scheme makes a kind of bamboo plywood of the utility model have higher bulk strength.The intermediate layer is a bamboo chip concora crush glued board, and the bamboo silk direction of adjacent two bamboo chip glued boards is vertical, so the power that acts on a kind of bamboo plywood of the utility model can be disperseed effectively, external manifestation is higher for whole plate intensity.The intermediate layer is the bamboo strip side compression glued board, and its shock-resistant and anti-pressure ability of the side of bamboo chip is stronger than the bamboo chip flat clamp of equal thickness.
Preferred as technique scheme, the thickness of described upper layer and following surface layer is 3～20mm, the thickness in described intermediate layer is 2～10mm.
Preferred as technique scheme, the thickness of described upper layer and following surface layer is 3～20mm; The thickness in monolayer of the bamboo chip concora crush glued board in intermediate layer is 2～9mm.
Preferred as technique scheme, the thickness of described reorganization bamboo clappers is 10mm; The thickness in described intermediate layer is 17mm.
Preferred as technique scheme, the thickness of described reorganization bamboo clappers is 6mm; Described intermediate layer is 3 layers of bamboo chip concora crush glued board, and thickness in monolayer is followed successively by 2mm, 3mm, 2mm in proper order by gummed.
The density of a kind of bamboo plywood described in the utility model is greater than 1.0 g/cm
3, moisture content be 6.0～14.0%, 24 hours thickness swelling rates less than 2.5%, MOR is greater than 100 MPa, case hardness is greater than 80 MPa.
In sum, the utlity model has following beneficial effect:
It is good that a kind of bamboo plywood of the utility model has surface smoothness, density height, class height; Whole plate MOR height, the compression strength height, excellent in cushion effect, case hardness is big, and thickness swelling rate is little, the advantage that dimensional stability is good.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two;
Fig. 3 is the structural representation of the utility model embodiment three.
Among the figure, 1 is upper layer, and 2 is the intermediate layer, and 3 are following surface layer.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
Embodiment one
As shown in Figure 1, a kind of bamboo plywood comprises upper layer 1, intermediate layer 2, following surface layer 3; Described upper layer 1 and following surface layer 3 are the reorganization bamboo clappers, and the bamboo silk orientation of described reorganization bamboo clappers is with vertical from the body face; The density of described a kind of bamboo plywood is 1.5 g/cm
3, moisture content is that 8.0%, 24 hour thickness swelling rate is 2.0%, and MOR is 120 MPa, and case hardness is 90 MPa.The bamboo silk of described reorganization bamboo clappers comprises and forms irregular decorative pattern through charing with without the bamboo silk of charing through hot-forming back.The charing degree of the bamboo silk of process charing is also different.Described intermediate layer 2 is three layers of bamboo chip concora crush glued board, and the bamboo silk direction of adjacent two bamboo chip concora crush glued boards is vertical.
Described bamboo chip concora crush glued board is meant, with mao bamboon block go green grass or young crops to remove Huang after the film-making after, make the bamboo chip of set specification again, be arranged in parallel after this bamboo chip gluing then, cold pressing or hot-forming with press.
Described reorganization bamboo clappers is meant, mao bamboon is blocked, and cuts open, is rolled into the bamboo silk of bunchy, then with the bamboo silk gluing of these bunchys, and then with colding pressing or the mode of hot pressing, the sheet material that the bamboo silk is reassembled into.
The thickness of described reorganization bamboo clappers is 7mm; The thickness in monolayer of described three layers of bamboo chip glued board is followed successively by 2mm, 3mm, 2mm in proper order by gummed.
Above-mentioned a kind of bamboo plywood is following manufacturing:
1. the recombinate manufacturing of bamboo clappers:
To roll the bamboo silk that makes bunchy after the mao bamboon film-making, part bamboo silk is carried out charing handle, is that unit is arranged with charing bamboo silk and the alternate order of non-charing bamboo silk subsequently with the bundle with the bamboo silk; Dry then, dry back moisture content is controlled at below 10%, and applying glue is dry more then, is controlled at below 15% at moisture content after the drying; Bamboo bundle impregnation resin content is controlled at below 10%; Carry out hot pressing with hot press then, the control temperature is 130～150 ℃, and control four sides pressure is 10～15MPa, and heat-insulation pressure keeping 1～2h; Cool off after the hot pressing, the bamboo that obtains recombinating is put in order plate, then described reorganization bamboo is put in order plate along cutting into the reorganization bamboo clappers that thickness is 3～20mm perpendicular to described bamboo silk direction, and is stand-by;
2. bamboo chip concora crush glued board is made:
Mao bamboon blocked make sheet, go green grass or young crops to remove Huang again, make the smooth bamboo chip of set specification, will be arranged in parallel into slab after the described bamboo chip gluing then, be hot pressed into the bamboo chip concora crush glued board of set specification then; Resin added is 100～300g/m
2Hot pressing condition is 50～100 ℃ of temperature, pressure 0.6～3MPa, and hot pressing time is controlled at 3～30min; Stand-by;
3. the folded of bamboo clappers and bamboo chip glued board of recombinating joined and hot pressing
Folded successively in the following order joining: one of bamboo clappers of reorganization, three of bamboo chip concora crush glued boards, one of reorganization bamboo clappers, and the bamboo silk direction of adjacent two bamboo chip concora crush glued boards is vertical mutually.Fold in a manner described and join after dryer sizing, resin added is 100～300g/m
2, be hot pressed into a kind of bamboo plywood then; Hot pressing condition is 50～80 ℃ of temperature, and pressure is 6～8MPa, and hot pressing time is controlled at 1～2h.
Embodiment two
As shown in Figure 2, a kind of bamboo plywood comprises upper layer 1, intermediate layer 2, following surface layer 3; Described upper layer 1 and following surface layer 3 are the reorganization bamboo clappers, and the bamboo silk orientation of described reorganization bamboo clappers is with vertical from the body face; The density of described a kind of bamboo plywood is 1.4 g/cm
3, moisture content is that 8.0%, 24 hour thickness swelling rate is 2.0%, and MOR is 120 MPa, and case hardness is 90 MPa.The bamboo silk of described reorganization bamboo clappers is the bamboo silk without charing.Described intermediate layer 2 is the bamboo strip side compression glued board.
Described bamboo strip side compression glued board is meant, with mao bamboon block go green grass or young crops to remove Huang after the film-making after, make the bamboo chip of set specification again, be that thickness is folded and joined with the width of bamboo chip after this bamboo chip gluing then, cold pressing with press then or hot-forming.
The thickness of described reorganization bamboo clappers is 7mm; The thickness of described bamboo strip side compression glued board is 17mm.
Above-mentioned a kind of bamboo plywood is following manufacturing:
1. the recombinate manufacturing of bamboo clappers:
To roll the bamboo silk that makes bunchy after the mao bamboon film-making, part bamboo silk is carried out charing handle, is that unit is arranged with charing bamboo silk and the alternate order of non-charing bamboo silk subsequently with the bundle with the bamboo silk; Dry then, dry back moisture content is controlled at below 10%, and applying glue is dry more then, is controlled at below 15% at moisture content after the drying; Bamboo bundle impregnation resin content is controlled at below 10%; Carry out hot pressing with hot press then, the control temperature is 130～150 ℃, and control four sides pressure is 10～15MPa, and heat-insulation pressure keeping 1～2h; Cool off after the hot pressing, the bamboo that obtains recombinating is put in order plate, then described reorganization bamboo is put in order plate along cutting into the reorganization bamboo clappers that thickness is 3～20mm perpendicular to described bamboo silk direction, and is stand-by;
2. the bamboo strip side compression glued board is made:
Mao bamboon blocked make sheet, go green grass or young crops to remove Huang again, make smooth bamboo chip, with being that thickness builds up slab with the width after the described bamboo chip gluing, be hot pressed into the bamboo strip side compression glued board of set specification then then; Resin added is 100～300g/m
2Hot pressing condition is 50～100 ℃ of temperature, pressure 0.6～3MPa, and hot pressing time is controlled at 3～30min; Stand-by;
3. the folded of bamboo clappers and bamboo chip glued board of recombinating joined and hot pressing
Folded successively in the following order joining: one of bamboo clappers of reorganization, one of bamboo strip side compression glued board, one of reorganization bamboo clappers, to fold in a manner described and join after dryer sizing, resin added is 100～300g/m
2, be hot pressed into a kind of bamboo plywood then; Hot pressing condition is 50～80 ℃ of temperature, and pressure is 6～8MPa, and hot pressing time is controlled at 1～2h;
Embodiment three
As shown in Figure 3, a kind of bamboo plywood comprises upper layer 1, intermediate layer 2, following surface layer 3; Described upper layer 1 and following surface layer 3 are the reorganization bamboo clappers, and the bamboo silk direction of described reorganization bamboo clappers is with vertical from the body face; The density of described a kind of bamboo plywood is 1.6 g/cm
3, moisture content is that 14.0%, 24 hour thickness swelling rate is 2.0%, and MOR is 180 MPa, and case hardness is 140 MPa.The bamboo silk of described reorganization bamboo clappers is non-charing bamboo silk.Described intermediate layer 2 is two-layer bamboo chip concora crush glued board, and the bamboo silk direction of adjacent two layers bamboo chip concora crush glued board is vertical.The thickness of described reorganization bamboo clappers is 10mm; The thickness in monolayer of described two-layer bamboo chip glued board is 4mm.
Above-mentioned a kind of bamboo plywood is following manufacturing:
1. the recombinate manufacturing of bamboo clappers:
To roll the bamboo silk that makes bunchy after the mao bamboon film-making, part bamboo silk is carried out charing handle, is that unit is arranged with charing bamboo silk and the alternate order of non-charing bamboo silk subsequently with the bundle with the bamboo silk; Dry then, dry back moisture content is controlled at below 10%, and applying glue is dry more then, is controlled at below 15% at moisture content after the drying; Bamboo bundle impregnation resin content is controlled at below 10%; Carry out hot pressing with hot press then, the control temperature is 130～150 ℃, and control four sides pressure is 10～15MPa, and heat-insulation pressure keeping 1～2h; Cool off after the hot pressing, the bamboo that obtains recombinating is put in order plate, then described reorganization bamboo is put in order plate along cutting into the reorganization bamboo clappers that thickness is 3～20mm perpendicular to described bamboo silk direction, and is stand-by;
2. the manufacturing of bamboo chip concora crush glued board:
Mao bamboon blocked make sheet, go green grass or young crops to remove Huang again, make the smooth bamboo chip of set specification, will be arranged in parallel into slab after the described bamboo chip gluing then, be hot pressed into the bamboo chip concora crush glued board of set specification then; Resin added is 100～300g/m2; Hot pressing condition is 50～100 ℃ of temperature, pressure 0.6～3MPa, and hot pressing time is controlled at 3～30min; Stand-by;
3. the folded of bamboo clappers and bamboo chip glued board of recombinating joined and hot pressing
Folded successively in the following order joining: one of bamboo clappers of reorganization, two of bamboo chip concora crush glued boards, one of reorganization bamboo clappers, and the bamboo silk direction of two bamboo chip concora crush glued boards is vertical mutually; Fold in a manner described and join after dryer sizing, resin added is 100～300g/m
2, be hot pressed into a kind of bamboo plywood then; Hot pressing condition is 50～80 ℃ of temperature, and pressure is 6～8MPa, and hot pressing time is controlled at 1～2h.
Embodiment four Performance Detection
Sample dimensions is pressed table 1 regulation and is carried out.
Undertaken by 4.1 regulation among the GB/T 17657-1999.
The moisture content test
The check of moisture content pattern is undertaken by 4.3 regulations among the GB/T 17657-1999.
Electromagnetism numeral hygronom is adopted in the moisture content exfactory inspection.During check tested reorganization floor level is placed, more than the built on stilts 50mm in the back side.Determine 4 equally distributed test points in the stage casing, floor of distance two ends 150mm; Electromagnetism numeral hygronom is placed on respectively on each test point, and record electromagnetism numeral hygronom data presented is got the moisture content of arithmetic mean of instantaneous value as Board Under Test.
The density check
Undertaken by 4.2 regulations among the GB/T 17657-1999.
The check of 24h thickness swelling rate
Undertaken by 4.5 regulations among the GB/T 17657-1999.
The MOR test
The MOR test is undertaken by 4.9 among the GB/T17657-1999.
When specimen thickness h≤15mm, the bearing distance L is 240mm, and when specimen thickness h＞15mm, the bearing distance L is 300mm.
The case hardness test
Undertaken by GB/T 1991 regulations.
Surface impact can be tested
Undertaken by 4.44 regulation among the GB/T 17657-1999.Each test specimen only impacts once.During test, test specimen lining thickness down is (2.5 ± 0.2) mm, and surface density is 75g/m
2Foamed polyethylene.
The result calculates and expression
Test specimen dipping deformation rate is calculated by (1), is accurate to 0.1%.
T=(h2-h1)／h1*100% …………………………（1）
In the formula: T---dipping deformation rate, %;
H1---specimen thickness before the immersion, mm;
H2---immersion back specimen thickness, mm.
Claims (9)
1. bamboo plywood comprises upper layer, intermediate layer, surface layer down, it is characterized in that: described upper layer and the following surface layer group bamboo clappers of attaching most importance to, and the bamboo silk orientation of described reorganization bamboo clappers is with vertical from the body face.
2. a kind of bamboo plywood according to claim 1 is characterized in that: the bamboo silk of described reorganization bamboo clappers comprises through charing with without the bamboo silk of charing.
3. a kind of bamboo plywood according to claim 1 and 2 is characterized in that: described intermediate layer is the bamboo strip side compression glued board.
4. a kind of bamboo plywood according to claim 1 and 2 is characterized in that: described intermediate layer is an at least one bamboo chip concora crush glued board.
5. a kind of bamboo plywood according to claim 4 is characterized in that: described intermediate layer is the bamboo chip concora crush glued board more than two or two, and the bamboo silk direction of adjacent two bamboo chip concora crush glued board is vertical.
6. a kind of bamboo plywood according to claim 3 is characterized in that: the thickness of described upper layer and following surface layer is 3～20mm, and the thickness in described intermediate layer is 2～10mm.
7. a kind of bamboo plywood according to claim 4 is characterized in that: the thickness of described upper layer and following surface layer is 3～20mm; The thickness in monolayer of the bamboo chip concora crush glued board in intermediate layer is 2～9mm.
8. a kind of bamboo plywood according to claim 6 is characterized in that: the thickness of described reorganization bamboo clappers is 10mm.
9. a kind of bamboo plywood according to claim 7 is characterized in that: the thickness of described reorganization bamboo clappers is 6mm; Described intermediate layer is 3 bamboo chip concora crush glued boards, and thickness in monolayer is followed successively by 2mm, 3mm, 2mm in proper order by gummed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202700392U CN201808110U (en) | 2010-07-26 | 2010-07-26 | Glued bamboo board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202700392U CN201808110U (en) | 2010-07-26 | 2010-07-26 | Glued bamboo board |
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| Publication Number | Publication Date |
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| CN201808110U true CN201808110U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202700392U Expired - Lifetime CN201808110U (en) | 2010-07-26 | 2010-07-26 | Glued bamboo board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885194A (en) * | 2010-07-26 | 2010-11-17 | 浙江欣远竹制品有限公司 | Glued bamboo board and preparation method thereof |
-
2010
- 2010-07-26 CN CN2010202700392U patent/CN201808110U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885194A (en) * | 2010-07-26 | 2010-11-17 | 浙江欣远竹制品有限公司 | Glued bamboo board and preparation method thereof |
| CN101885194B (en) * | 2010-07-26 | 2012-07-04 | 浙江欣远竹制品有限公司 | Glued bamboo board and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20120704 |