CN205674317U - A kind of prestressing force carbide wood sheet material with creep resistant deforming performance - Google Patents
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance Download PDFInfo
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- CN205674317U CN205674317U CN201620612819.8U CN201620612819U CN205674317U CN 205674317 U CN205674317 U CN 205674317U CN 201620612819 U CN201620612819 U CN 201620612819U CN 205674317 U CN205674317 U CN 205674317U
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Abstract
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance that the utility model provides, by the shape of sheet material and preparation method are optimized, prestressed principle is utilized to strengthen sheet material internal stress, it is allowed to creep is less likely to occur, improve the shape stability of sheet material, the size making carbide wood sheet material is more frivolous and intensity improves, and is widely used in the fields such as house ornamentation, building, Furniture manufacture.
Description
Technical field
The utility model relates to field of material technology, is specifically related to a kind of prestressing force carbonization with creep resistant deforming performance
Wood plank.
Background technology
Furniture decoration solid wood board on current market, uses the multi-layer solid wood materials such as veneer, natural veneer, central layer
Overlap according to a certain order, make through gluing, pressing, there is with low cost, good appearance, mechanical strength advantages of higher.Wood
Material, via high-temperature process, becomes the carbide wood between timber and charcoal.Especially surface carbonation wood, can highlight surface recessed
Convex wood grain, produces stereoeffect.Application aspect concentrates on handicraft, finishing material and Shui nationality can product.Also referred to as technique charcoal
Change wood, charcoal burns wood.The existing surface that carbide wood is attached to sheet, to improve the sight of sheet material.In actual use,
The structure of conventional laminated wood, combines by gluing oxidant layer with for timber laminate, and under action of long-term load, creep-resistant property is poor draws
Sending out the deformation of carbonization timber layer, coming off, therefore the cross section at glue laminated wood member is generally large, and laminated wood seems big and heavy and bulkiness, and material
Material waste is serious.Meanwhile, the determination of laminated wood sectional dimension is controlled according to its rigidity often, meets design in rigidity and wants
Under conditions of asking, all far super design load of the intensity of component, this also result in the serious waste of material, and component lightness obtains not
To fully demonstrating, being unfavorable for promoting the use of of timber structure, for solving this problem, existing method is by joining in laminated wood
Set high the non-natural materials such as strong FRP or reinforcing bar to strengthen, but the method has the disadvantage that the high-strength FRP of bonding or steel
The non-natural materials such as muscle, need special adhesive to bond, and this makes complicated construction technique undoubtedly, causes cost to increase；
The reinforcing materials such as high-strength FRP or reinforcing bar and the poor compatibility of timber, product is easily shelled with timber body in-service
From the poor reliability of product quality.
Utility model content
In view of this, the strong carbide wood sheet material of a kind of creep resistant of the utility model, dimensional stability.
The purpose of this utility model is achieved through the following technical solutions: a kind of prestressing force carbon with creep resistant deforming performance
Change wood plank, including central layer, also include the first cushion being arranged on central layer one or both sides and cover at the first cushion
The one side that at least one of which carbonization timber layer on surface, described central layer and the first cushion engage is provided with the reinforcement blind hole of circle.
Central layer described in the utility model can be selected for any one prior art and realizes, it should have bigger density, relatively
High intensity, to support described adsorption layer, the core-board of such as prior art, Europe deals etc..Due to the setting of central layer, contain
The solid wood board mechanical performance of adsorption layer gets a promotion and is hardly damaged, and the thickness of adsorption layer also can reduce further, improves
The outward appearance of obtained sheet material.The sheet material that described first cushion can select density relatively low realizes, such as veneer, wood skin etc., can
To be formed by stacking by multilayer material.The effect of the first cushion is the stress between balance carbonization timber layer and central layer, it is to avoid the two is sent out
Raw interlaminar separation.The one side that the utility model engages at central layer and the first cushion especially arranges reinforcement blind hole, circular reinforcement
Blind hole has stronger structural stability, and when pressing sheet material, reinforcement blind hole receives axial pressure and expands, after pressing terminates,
Reinforcement blind hole will produce the tractive force pointing to its axle center to recover shape, it is to avoid central layer suffer pulling force that the external world applies and
Produce creep, it is ensured that the dimensional stability of central layer, structural stability, it is to avoid carbonization timber layer is affected by central layer and comes off, ftractures.
Further, described first cushion and the ratio of the thickness of carbonization timber layer are (0.2-2): 5；Described carbonization timber layer by
Multilayer carbide wood wood skin is formed by stacking；Described carbide wood wood skin is planer wood skin or longitudinally oblique planing wood skin or laterally oblique planing wood skin；
The air-dry density of described first cushion is 0.35g/cm3—0.65 g/cm3。
In the utility model, carbonization timber layer can be made up of monolithic carbonization plank, it is also possible to is formed by carbide wood wood skin.Institute
The carbide wood wood skin stated refers to Recombinant Wood skin or natural veneer as raw material, to obtain after existing carbide wood technique carbonization.
The carbonization timber layer utilizing multilayer carbide wood wood skin to build up has more preferable ductility, it is not easy to because of the stress of sheet material internal contraction
Come off, separate.The first preferred air-dry density of cushion is 0.35g/cm3—0.65 g/cm3Wood materials make.
Further, described carbonization timber layer include successively from outside to inside one layer of flat cutting wood skin, one layer laterally oblique planing wood skin and
The oblique planing wood skin of one layer of longitudinal direction；Between flat cutting wood skin, laterally oblique planing wood skin, the angle of wood-fibred is 20-25 °；Laterally oblique planing wood skin, vertical
Wood-fibred angle between oblique planing wood skin is 10-15 °.
The utility model for the bigger feature of the utility model sheet material internal contraction stress further to carbonization timber layer
Structure is optimized, and further enhances carbonization timber layer toughness in all directions, is allowed to be not easy to be stretched and rupture；Separately
On the one hand, the fiber interlocking is also beneficial to maintain the structural stability of carbonization timber layer, it is not easy to bubbling, come off.
Further, it is provided with, in described reinforcement blind hole, the elastic gum bolt coordinating with reinforcement blind hole；Described carbonization timber layer with
It is equipped with elastic glue-line between the first buffering interlayer, cushion and central layer.
Described elastic gum bolt and elastic glue-line can be selected for having resilient colloidal materials and make, such as latex, rubber and high score
Sub-fluoropolymer resin etc..When carrying out pre-stressed machining, extend under the effect of elastic gum bolt and elastic glue-line boundary's stress outside, become
Shape, after extraneous stress relieved, by producing the tractive force shrinking when elastic gum bolt and elastic glue-line reset, makes sheet material overall structure more
Stepping up to gather, structural stability is higher and is not easy deformation.
Further, the both sides of described central layer are equipped with described first cushion；The thickness of described elastic glue-line and the
The ratio of the thickness of one cushion is 1:30-1:50；0.9-1.1 times of a diameter of core thickness of described reinforcement blind hole；Described benefit
The gross area of strong blind hole accounts for the 10%-15% of central layer.
Reinforcement blind hole aperture is excessive, quantity is too much, is easily reduced the intensity of central layer, causes sheet material to be easily broken off, force-bearing property
Can decline.It and reinforcement blind hole quantity is very few, is difficult to again the shape providing enough internal stress to maintain sheet material.Through checking, above-mentioned
The reinforcement blind hole of parameter has the effect of optimum.
Preferably, it is additionally provided with the second cushion between described carbonization timber layer and the first cushion；On described second cushion
It is provided with the honeycomb hole of array arrangement, the consistency of thickness of the aperture of honeycomb hole and the second cushion；Second cushion air-dry density is
0.35g/cm3—0.65 g/cm3；The ratio of the thickness of the second cushion and the first buffer layer thickness is 1:2 1:5；Described honeycomb
The diameter in hole is 1.2 times of the second cushion.
Honeycomb hole, when receiving autofrettage, can produce axial deformation, equally after making sheet material, by the carbon for closing on
Change timber layer and the first cushion provides the tractive force shrinking, improve the creep-resistant property of this double-layer structure.
Preferably, described elastic gum bolt and elastic its raw material of glue-line include melamine formaldehyde resin adhesives by weight
10-20 part, PET 50-70 part, PA66 10-15 part, carbamate 0.1-0.5 part, methyl benzoate 0.5-7 part, chlorous acid
Sodium 0.1-0.8 part, copper sulphate 0.01-0.15 part.
Described melamine formaldehyde resin adhesives (melamine-formaldehyde resin), melamine and first
Polymer obtained by aldehyde reaction.Also known as melamino-formaldehyde resin, melamine resin, can be selected for prior art and realize.PET is for gathering to benzene
Naphthalate, is first closed with ethylene glycol esterification with glycol ester exchange or with terephthalic acid (TPA) by dimethyl terephthalate (DMT)
Become bishydroxyethyl terephthalate, then carry out polycondensation reaction again and prepare.PA66 is nylon66 fiber, can be selected for prior art and realizes.
The compound that carbamate is amino or amido is directly connected with the carbonyl of formic acid esters.Also the monoesters list acyl of carbonic acid can be regarded as
Amine.Methyl benzoate, has another name called benzoic acid methyl esters, chemically can be considered benzoic acid or benzoyl oxide or chlorobenzoyl chloride methyl alcohol
The product of alcoholysis.Colourless transparent liquid.Can be miscible with methyl alcohol, ethanol, ether；Water insoluble.Sodium chlorite (Sodium
Chlorite), it is commercially available prod.With the addition of elastic gum bolt of the present utility model and the elasticity of carbamate and methyl benzoate
After glue-line sizing, there is outstanding creep-resistant property, contribute to maintaining the shape of sheet material.And in the association of sodium chlorite and copper sulphate
Under effect, elastic gum bolt and elastic glue-line then can be with the wood-fibred jails of central layer, the first cushion, the second cushion and carbonization timber layer
Consolidation is closed, it is not easy to warpage, bubbling, interlaminar separation.
The utility model can be selected for common pressing method and makes.
Particularly, the utility model also provides a kind of prestressing force carbide wood sheet material prepared and have creep resistant deforming performance
Method, including following operation:
S1. central layer, the first cushion, the second cushion and carbonization timber layer are prepared；
S2. the surface at central layer gets out reinforcement blind hole；
S3. prepare PUR, poured in described reinforcement blind hole, until PUR surface highlights 1-than core plate surface
3mm, obtains elastic gum bolt after cooling；
S4. at core plate surface coating hot-melt adhesive, pressing for the first time after covering the first cushion, is carried out；
S5. at the first buffer-layer surface coating hot-melt adhesive, second time pressing after covering the second cushion, is carried out；Delay second
Rush layer surface coating hot-melt adhesive, cover the third time pressing of carbonization timber layer laggard row；
S6. there is described in obtaining after carrying out the 4th pressing the prestressing force carbide wood sheet material of creep resistant deforming performance.
Central layer, the first cushion, the second cushion and carbonization timber layer all can be selected for any one prior art and make.Hot melt
Glue surface highlights than core plate surface, and in follow-up pressing working procedure, protruding parts will suffer from heating power and pressure and to be squeezed into reinforcement blind
Kong Zhong, improves the internal stress of reinforcement blind hole.
Further, described first time pressing refers to the condition using plane mould with 15-20MP pressure, 150-200 DEG C
Pressing 150-170min；Described second time pressing refers to the condition pressing using plane mould with 8-9MP pressure, 150-200 DEG C
50-70min；Described third time pressing refers to the condition pressing 50-using plane mould with 10-15MP pressure, 150-200 DEG C
70min；Described 4th hot pressing refers to use plane mould successively with the condition pressing 50-of 20-35MP pressure, 130-150 DEG C
70min, with the condition pressing 30-40min of 20-35MP pressure, 80-90 DEG C, with the condition pressure of 35-45MP pressure, 20-30 DEG C
Close 100-200min.
The technique to repeatedly pressing for the utility model is optimized, and improves the creep resisting performance of the utility model further.
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance that the utility model provides and preparation method thereof,
By the shape of sheet material and preparation method are optimized, utilize prestressed principle to strengthen sheet material internal stress, be allowed to be not easy
Creep occurring, improving the shape stability of sheet material, the size making carbide wood sheet material is more frivolous and intensity improves, and is widely used in
The fields such as house ornamentation, building, Furniture manufacture.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the exploded view of the present invention.
Fig. 3 is the structural representation of another embodiment of the present invention.
Fig. 4 is the structural representation of the present invention the second cushion.
Fig. 5 is the structural representation of another embodiment of the present invention.
Fig. 6 is the structural representation of another embodiment of the present invention.
Detailed description of the invention
The present invention is made further in detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that
Thin description:
Embodiment 1
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance of the present embodiment offer, such as Fig. 1 and Fig. 2, including
Central layer 1, the first cushion 3 also including being arranged on central layer 1 side and covering are in one layer of carbide wood of the first buffer-layer surface
Layer 2, the one side of the joint of described central layer 1 and the first cushion 3 is provided with the reinforcement blind hole 11 of circle.In the present embodiment, central layer is preferred
For Europe deals.First cushion selects veneer to realize.
Further, the ratio of described first cushion and the thickness of carbonization timber layer, 1:5；The gas of described first cushion is done
Density is 0.35g/cm3—0.65 g/cm3。
Further, described carbonization timber layer is existing carbonization plank.
Further, 2 times of a diameter of core thickness of described reinforcement blind hole；The gross area of described reinforcement blind hole accounts for core
The 30% of plate.
The present invention utilizes prior art to make.
Embodiment 2
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance of the present embodiment offer, such as Fig. 3, including core, 1,
The first cushion 3 of also including being arranged on central layer 1 both sides and covering are in one layer of carbonization timber layer 2 of the first buffer-layer surface, institute
The one side of the joint stating central layer and the first cushion is provided with the reinforcement blind hole 11 of circle.Described central layer is core-board.
Further, described first cushion and the ratio of the thickness of carbonization timber layer are 2:5；Described carbonization timber layer is by multilayer carbon
Change wood wood skin to be formed by stacking；Described first cushion is the veneer that one layer of Eucalyptus is made.
Further, described carbonization timber layer include successively from outside to inside one layer of flat cutting wood skin, one layer laterally oblique planing wood skin and
The oblique planing wood skin of one layer of longitudinal direction；Between flat cutting wood skin, laterally oblique planing wood skin, the angle of wood-fibred is 20 °；Laterally oblique planing wood skin, longitudinal direction are tiltedly
Wood-fibred angle between planing wood skin is 15 °.
Further, it is provided with, in described reinforcement blind hole, the elastic gum bolt 4 coordinating with reinforcement blind hole；Described carbonization timber layer 2
And the 3rd, the first buffering interlayer is equipped with elastic glue-line 5 between the first cushion and central layer 1.In the present embodiment, elastic gum bolt and elasticity
Glue-line selects PA66 material to make.
Further, the both sides of described central layer are equipped with described first cushion；The thickness of described elastic glue-line and the
The ratio of the thickness of one cushion is 1:50；0.9 times of a diameter of core thickness of described reinforcement blind hole；Described reinforcement blind hole total
Area accounts for the 15% of central layer.
Preferably, it is additionally provided with the second cushion 6 between described carbonization timber layer and the first cushion；Such as Fig. 4, described second delays
Rush layer 6 and be provided with the hexagonal hole 61 of array arrangement, the diameter of hexagonal hole 61 and the consistency of thickness of the second cushion；Second delays
Rushing layer air-dry density is 0.35g/cm3—0.65 g/cm3；The ratio of the thickness of the second cushion and the first buffer layer thickness is 1:2；
The diameter of described hexagonal hole is 1.2 times of the second cushion.
Embodiment 3
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance of the present embodiment offer, such as Fig. 5, including core, 1,
Also include the first cushion 3 being arranged on central layer 1 side and one layer of carbonization timber layer 2 on the first cushion 3 surface for the covering, institute
The one side of the joint stating central layer and the first cushion is provided with the reinforcement blind hole 11 of circle.
Further, described first cushion and the ratio of the thickness of carbonization timber layer are 0.2:5；Described carbonization timber layer is by multilayer
Carbide wood wood skin is formed by stacking；Described carbide wood wood skin is planer wood skin or longitudinally oblique planing wood skin or laterally oblique planing wood skin；Described
The air-dry density of the first cushion is 0.35g/cm3—0.65 g/cm3。
Further, described carbonization timber layer include successively from outside to inside one layer of flat cutting wood skin, one layer laterally oblique planing wood skin and
The oblique planing wood skin of one layer of longitudinal direction；Between flat cutting wood skin, laterally oblique planing wood skin, the angle of wood-fibred is 20 °；Laterally oblique planing wood skin, longitudinal direction are tiltedly
Wood-fibred angle between planing wood skin is 10 °.
Further, it is provided with, in described reinforcement blind hole, the elastic gum bolt 4 coordinating with reinforcement blind hole；Described carbonization timber layer 2
And it between the first cushion 3, between the first cushion 3 and central layer 1, is equipped with elastic glue-line 5.
Further, the ratio of the thickness of the thickness of described elastic glue-line and the first cushion is 1:30；Described reinforcement is blind
1.1 times of a diameter of core thickness in hole；The gross area of described reinforcement blind hole accounts for the 10% of central layer.
Preferably, described elastic gum bolt and elastic its raw material of glue-line include melamine formaldehyde resin adhesives by weight
15 parts, PET59 part, PA66 13 parts, carbamate 0.2 part, methyl benzoate 5 parts, sodium chlorite 0.2 part, copper sulphate 0.08
Part.
Embodiment 4
A kind of prestressing force carbide wood sheet material with creep resistant deforming performance of the present embodiment offer, such as Fig. 6, including core, 1,
Also include the first cushion 3 being arranged on central layer 1 side and 2 layers of carbonization timber layer 2 on the first cushion 3 surface for the covering, institute
The one side of the joint stating central layer 1 and the first cushion 3 is provided with the reinforcement blind hole 11 of circle.
Further, described first cushion and the ratio of the thickness of carbonization timber layer are 1.5:5；Described carbonization timber layer is by multilayer
Carbide wood wood skin is formed by stacking；Described carbide wood wood skin is planer wood skin or longitudinally oblique planing wood skin or laterally oblique planing wood skin；Described
First cushion is that multilayer Recombinant Wood skin is formed by stacking.
Further, described carbonization timber layer include successively from outside to inside one layer of flat cutting wood skin, one layer laterally oblique planing wood skin and
The oblique planing wood skin of one layer of longitudinal direction；Between flat cutting wood skin, laterally oblique planing wood skin, the angle of wood-fibred is 21 °；Laterally oblique planing wood skin, longitudinal direction are tiltedly
Wood-fibred angle between planing wood skin is 10 °.
Further, it is provided with, in described reinforcement blind hole 11, the elastic gum bolt 4 coordinating with reinforcement blind hole；Described carbonization timber layer
And it is equipped with elastic glue-line 5 between the first buffering interlayer, the first cushion and central layer.
Further, the ratio of the thickness of the thickness of described elastic glue-line and the first cushion is 1:40；Described reinforcement is blind
1.1 times of a diameter of core thickness in hole；The gross area of described reinforcement blind hole accounts for the 15% of central layer.
Preferably, it is additionally provided with the second cushion 6 between described carbonization timber layer and the first cushion；On described second cushion
It is provided with the hexagonal hole of array arrangement, the diameter of hexagonal hole and the consistency of thickness of the second cushion；Second cushion gas is done close
Degree is 0.35g/cm3—0.65 g/cm3；The ratio of the thickness of the second cushion and the first buffer layer thickness is 1:3；Described hexagon
The diameter in hole is 1.2 times of the second cushion.
Preferably, described elastic gum bolt and elastic its raw material of glue-line include melamine formaldehyde resin adhesives by weight
15 parts, PET 70 parts, PA66 10 parts, carbamate 0.5 part, methyl benzoate 0.5 part, sodium chlorite 0.8 part, copper sulphate
0.01 part.
The present embodiment also provides a kind of method of prestressing force carbide wood sheet material prepared and have creep resistant deforming performance, including
Following operation:
S1. central layer, the first cushion, the second cushion and carbonization timber layer are prepared；
S2. the surface at central layer gets out reinforcement blind hole；
S3. prepare PUR, poured in described reinforcement blind hole, until PUR surface highlights 1-than core plate surface
3mm, obtains elastic gum bolt after cooling；
S4. at core plate surface coating hot-melt adhesive, pressing for the first time after covering the first cushion, is carried out；
S5. at the first buffer-layer surface coating hot-melt adhesive, second time pressing after covering the second cushion, is carried out；Delay second
Rush layer surface coating hot-melt adhesive, cover the third time pressing of carbonization timber layer laggard row；
S6. there is described in obtaining after carrying out the 4th pressing the prestressing force carbide wood sheet material of creep resistant deforming performance.
Further, described first time pressing refers to the condition pressing using plane mould with 18MP pressure, 160 DEG C
160min；Described second time pressing refers to the condition pressing 60min using plane mould with 9MP pressure, 190 DEG C；Described 3rd
Secondary pressing refers to the condition pressing 50min using plane mould with 12MP pressure, 200 DEG C；Described 4th hot pressing refers to use
Plane mould is successively with the condition pressing 70min of 25MP pressure, 120 DEG C, with the condition pressing 30min of 30MP pressure, 90 DEG C,
Condition pressing 100min with 35MP pressure, 30 DEG C.
Embodiment 5
The present embodiment provides a kind of prestressing force carbide wood sheet material with creep resistant deforming performance, its structure and embodiment 4
Unanimously.
Preferably, described elastic gum bolt and elastic its raw material of glue-line include melamine formaldehyde resin adhesives by weight
20 parts, PET 50 parts, PA66 15 parts, carbamate 0.1 part, methyl benzoate 7 parts, sodium chlorite 0.1 part, copper sulphate
0.15 part.
The present embodiment also provides a kind of method of prestressing force carbide wood sheet material prepared and have creep resistant deforming performance, including
Following operation:
S1. central layer, the first cushion, the second cushion and carbonization timber layer are prepared；
S2. the surface at central layer gets out reinforcement blind hole；
S3. prepare PUR, poured in described reinforcement blind hole, until PUR surface highlights 1-than core plate surface
3mm, obtains elastic gum bolt after cooling；
S4. at core plate surface coating hot-melt adhesive, pressing for the first time after covering the first cushion, is carried out；
S5. at the first buffer-layer surface coating hot-melt adhesive, second time pressing after covering the second cushion, is carried out；Delay second
Rush layer surface coating hot-melt adhesive, cover the third time pressing of carbonization timber layer laggard row；
S6. there is described in obtaining after carrying out the 4th pressing the prestressing force carbide wood sheet material of creep resistant deforming performance.
Further, described first time pressing refers to the condition pressing using plane mould with 15MP pressure, 200 DEG C
150min；Described second time pressing refers to the condition pressing 70min using plane mould with 9MP pressure, 150 DEG C；Described 3rd
Secondary pressing refers to the condition pressing 50min using plane mould with 10MP pressure, 200 DEG C；Described 4th hot pressing refers to use
Plane mould is successively with the condition pressing 70min of 35MP pressure, 130 DEG C, with the condition pressing 30min of 20MP pressure, 90 DEG C,
Condition pressing 100-200min with 45MP pressure, 20 DEG C.
Embodiment 6
The present embodiment provides a kind of prestressing force carbide wood sheet material with creep resistant deforming performance, its structure and embodiment 3
Cause.
Preferably, described elastic gum bolt and elastic its raw material of glue-line include melamine formaldehyde resin adhesives by weight
20 parts, PET70 part, PA66 15 parts, methyl benzoate 7 parts, sodium chlorite 0.8 part.
Embodiment 7
The present embodiment provides a kind of prestressing force carbide wood sheet material with creep resistant deforming performance, its structure and embodiment 3
Cause.
Preferably, described elastic gum bolt and elastic its raw material of glue-line include melamine formaldehyde resin adhesives by weight
20 parts, PET70 part, PA66 15 parts, carbamate 0.5 part, 0.15 part of copper sulphate.
The two ends of the elastic gum bolt of embodiment 2-7 are applied respectively the pulling force of 5000N, maintains 100.Test its length to increase
Long rate.Its result such as table 1.
Table 1.
| Experimental group | Length increases (%) |
| Embodiment 2 | 3.21 |
| Embodiment 3 | 0.87 |
| Embodiment 4 | 0.53 |
| Embodiment 5 | 0.98 |
| Embodiment 6 | 3.52 |
| Embodiment 7 | 3.91 |
Standard GB/T/T 24137-2009 is used to test the said goods, its result such as table 2.
Table 2.
| Experimental group | Expansion rate of water absorption % | Flexural strength, MPA | Dimensional stability, % | Elastic glue-line bonding strength/MPa |
| Embodiment 1 | 0.67 | 41.0 | 1.4 | 0.58 |
| Embodiment 2 | 0.83 | 43.7 | 1.5 | 0.32 |
| Embodiment 3 | 0.45 | 49.4 | 1.3 | 0.73 |
| Embodiment 4 | 0.31 | 55.8 | 1.1 | 0.89 |
| Embodiment 5 | 0.21 | 54.7 | 1.0 | 0.94 |
| Embodiment 6 | 0.91 | 38.2 | 1.9 | 0.43 |
| Embodiment 7 | 0.90 | 31.2 | 1.8 | 0.47 |
Durability test.
The product of comparative example and embodiment is pasted onto in a metope, successively to its following experiment condition of applying:
A.85 DEG C, relative humidity 90%, being filled with oxygen makes oxygen volume in air reach 80%, at the xenon lamp aging case of 1KW
Managing 1000 hours, edges of boards apply the pulling force of 5000N；
B.45 DEG C, relative humidity 10%, 2KW sodium vapor lamp irradiates 1000 hours, and edges of boards apply the pulling force of 5000N.
Record the outward appearance of each experimental group dalle, as shown in table 3.
| Experimental group | A tests | B tests |
| Embodiment 1 | Surfacing, has slight bubbling, and edge interlayer is slightly separated, warpage etc. deforms. | Surfacing, has slight bubbling, and edge interlayer is slightly separated, warpage etc. deforms. |
| Embodiment 2 | Surfacing, has slight bubbling, and edge interlayer is slightly separated, warpage etc. deforms. | Surfacing, has obvious bubbling, and edge interlayer is clearly separated, warpage etc. deforms. |
| Embodiment 3 | Smooth surface, smooth, without the bad problem such as bubbling, cracking, Coating combination is tight, deforms without separations, warpage etc.. | Smooth surface, smooth, without the bad problem such as bubbling, cracking, Coating combination is tight, deforms without separations, warpage etc.. |
| Embodiment 4 | Smooth surface, smooth, without the bad problem such as bubbling, cracking, Coating combination is tight, deforms without separations, warpage etc.. | Smooth surface, smooth, without the bad problem such as bubbling, cracking, Coating combination is tight, deforms without separations, warpage etc.. |
| Embodiment 5 | Smooth surface, smooth, without the bad problem such as bubbling, cracking, Coating combination is tight, deforms without separations, warpage etc.. | Smooth surface, smooth, without the bad problem such as bubbling, cracking, Coating combination is tight, deforms without separations, warpage etc.. |
| Embodiment 6 | Surfacing, has slight bubbling, and edge interlayer is slightly separated, warpage etc. deforms. | Surfacing, has obvious bubbling, and edge interlayer is clearly separated, warpage etc. deforms. |
| Embodiment 7 | Surfacing, has slight bubbling, and edge interlayer is slightly separated, warpage etc. deforms. | Surfacing, has slight bubbling, and edge interlayer is slightly separated, warpage etc. deforms. |
The more than wherein specific implementation for the present invention, it describes more concrete and detailed, but can not therefore manage
Solve as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from
On the premise of present inventive concept, can also make some deformation and improve, these obvious alternative forms belong to this
Bright protection domain.
Claims (6)
1. there is a prestressing force carbide wood sheet material for creep resistant deforming performance, including central layer, it is characterised in that: also include arranging
The first cushion in central layer one or both sides and covering are at least one of which carbonization timber layer of the first buffer-layer surface, its feature
It is: the one side that described central layer and the first cushion engage is provided with the reinforcement blind hole of circle.
2. the prestressing force carbide wood sheet material with creep resistant deforming performance according to claim 1, it is characterised in that: described
First cushion is (0.2-2) with the ratio of the thickness of carbonization timber layer: 5；Described carbonization timber layer is by multilayer carbide wood wood skin overlapping
Become；Described carbide wood wood skin is planer wood skin or longitudinally oblique planing wood skin or laterally oblique planing wood skin；The gas of described first cushion is done
Density is 0.35g/cm3—0.65 g/cm3。
3. the prestressing force carbide wood sheet material with creep resistant deforming performance according to claim 2, it is characterised in that: described
Carbonization timber layer includes one layer of flat cutting wood skin, one layer of laterally oblique planing wood skin and the oblique planing wood skin of one layer of longitudinal direction from outside to inside successively；Flat cutting
Between wood skin, laterally oblique planing wood skin, the angle of wood-fibred is 20-25 °；The laterally wood-fibred folder between oblique planing wood skin, longitudinally oblique planing wood skin
Angle is 10-15 °.
4. the prestressing force carbide wood sheet material with creep resistant deforming performance according to claim 1, it is characterised in that: described
It is provided with the elastic gum bolt coordinating with reinforcement blind hole in reinforcement blind hole；Described carbonization timber layer and the first buffering interlayer, cushion and core
It is equipped with elastic glue-line between plate.
5. the prestressing force carbide wood sheet material with creep resistant deforming performance according to claim 4, it is characterised in that: described
The both sides of central layer are equipped with described first cushion；The ratio of the thickness of the thickness of described elastic glue-line and the first cushion is 1:
30-1:50；0.9-1.1 times of a diameter of core thickness of described reinforcement blind hole；The gross area of described reinforcement blind hole accounts for central layer
10%-15%。
6. the prestressing force carbide wood sheet material with creep resistant deforming performance according to claim 1 or 4, it is characterised in that:
It is additionally provided with the second cushion between described carbonization timber layer and the first cushion；Described second cushion is provided with the honeybee of array arrangement
The consistency of thickness of socket bore, the aperture of honeycomb hole and the second cushion；Second cushion air-dry density is 0.35g/cm3—0.65
g/cm3；The ratio of the thickness of the second cushion and the first buffer layer thickness is 1:2 1:5；The diameter of described honeycomb hole be second delay
Rush layer 1.2 times.
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| CN201620612819.8U CN205674317U (en) | 2016-06-15 | 2016-06-15 | A kind of prestressing force carbide wood sheet material with creep resistant deforming performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393294A (en) * | 2016-06-15 | 2017-02-15 | 深圳市松博宇科技股份有限公司 | Prestressed carbonized wood board with creep deformation resistant performance and preparation method thereof |
| CN109016699A (en) * | 2018-08-03 | 2018-12-18 | 深圳市松博宇科技股份有限公司 | The composite board of light-high-strength |
-
2016
- 2016-06-15 CN CN201620612819.8U patent/CN205674317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393294A (en) * | 2016-06-15 | 2017-02-15 | 深圳市松博宇科技股份有限公司 | Prestressed carbonized wood board with creep deformation resistant performance and preparation method thereof |
| CN109016699A (en) * | 2018-08-03 | 2018-12-18 | 深圳市松博宇科技股份有限公司 | The composite board of light-high-strength |
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