CN106738112A - A kind of heavy wood material suppressed with veneer and preparation method thereof - Google Patents
A kind of heavy wood material suppressed with veneer and preparation method thereof Download PDFInfo
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- CN106738112A CN106738112A CN201710064863.9A CN201710064863A CN106738112A CN 106738112 A CN106738112 A CN 106738112A CN 201710064863 A CN201710064863 A CN 201710064863A CN 106738112 A CN106738112 A CN 106738112A
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- Prior art keywords
- veneer
- artificial board
- mould
- wood
- adhesive
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/003—Mechanical surface treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
Abstract
The invention discloses a kind of artificial board, described artificial board is formed by veneer compacting, and its composition is mainly common veneer；The density of the artificial board is more than 0.80g/cm3, more than 1.1MPa, elastic modelling quantity is more than 8000MPa to internal bond strength, and chord plane hardness is more than 8500N.It is of the invention main using the rotary-cut of low-density fast growing wood or (and) veneer of slicing, by mechanical trickle division, applying glue, position compression molding, be heating and curing curable type, densification weight wood material attractive in appearance is enriched naturally so as to obtain texture, solve the problems, such as various low-density timber because the defects such as material is uneven, yielding cracking, material difference are without good utilisation, the high performance material that the low-density timber of a large amount of fast-growings, small firewood material become high-quality is used, is turned waste into wealth.
Description
Technical field
The present invention relates to artificial board and its processing method, more particularly to a kind of weight wood of utilization fast growing wood veneer compacting
Material and preparation method thereof, belongs to wood-based plate processing technique field.
Background technology
The manufacture method of existing Wooden phenolic resin layer material, is by timber selection, shearing, impregnation, displays, does
Dry, precompressed, assembly and hot pressing into laminated timber.Technical scheme as disclosed in Chinese patent ZL93105062.6 is exactly this class
's.Laminated timber prepared by prior art, and its sheet material after hacking texture, be all horizontal parallel line that dull lamination is produced
The texture of the lamination of reason or composition.It is 0.5~2.5mm being made up of rotary-cut or slicing because the timber of the basic material of lamination
Veneer, itself does not almost see the native texture of timber, so lamination mostly only has what lamination was produced after being hot pressed into laminated timber
Horizontal parallel texture, the texture variations of lamination with hacking angle change, and the distance between lamination texture changes, and does not have day
The abundant texture of right wood grain, manifesting for texture be not also distinct, easily finds out very much artificial synthetic material vestige, and production cost is high.It is comprehensive
Above-mentioned institute, the texture performance of existing lamination wood material is limited by veneer and processing technology, it is impossible to realize what is enriched
Timber natural texture tangent plane outward appearance, and the quality of plank also limited by material performance index.
Similar technology also obtains disclosure in Chinese patent CN101774190A：A kind of carbon fiber fabric reinforced poplar ply
Product material structural elements and its processing method, are formed by poplar rotary-cut piece and carbon cloth intersecting gluing, have played carbon fiber
The advantage of cloth and meaning poplar laminated veneer lumber.The mechanical property of poplar material is drastically increased, and avoids that carbon fiber is used alone
During cloth outer patch the problems such as common fastening invalidation and stripping damage.But its sheet material prepared is stacked in layers, and outward appearance is shown as
Obvious imitation wood's sample, some consumers are even more and the timber of this pattern is represented clearly opposition/refusal.Though the patented technology
So the performance of composite board can be effectively improved, but be constrained to intersecting structure in itself, the bonding stability of composite plate
The combination of adhesive is depended critically upon, and the carbon fibre cloth layer being superimposed is exposed the serious influence of meeting and answers in process
The pattern of plywood material, range of application is extremely limited, and is unfavorable for that it is applied to different industries or industry.
In addition, existing artificial wood is due to the hypodynamic defect of combination between original timber forming laminated sheet material,
So that the difficulty of timber compacting each other is larger, just must in order to the direct internal bond strength of the timber for ensureing multilayer is sufficiently large
Must be using substantial amounts of adhesive, these organic adhesion agents meeting sustained release after imitation wood is processed into furniture, decorated articles,
Causing the environmental protection quality grade of artificial wood reduces, and have impact on the security and market value of timber.
The content of the invention
It is an object of the invention to overcome, the texture of artificial board in the prior art is single, it is residual to suppress poor quality, formaldehyde
The deficiency that allowance is high, the feature of environmental protection is poor etc., there is provided a kind of high-performance artificial board and its processing method.
As described above, artificial board of the prior art is mostly hot-pressed board, formaldehyde is high, does not have the abundant of natural wood grain
Texture, typically only as being used after core clad can (such as consolidated floor, ecological board, middle fiberboard, particieboard etc.).First, originally
Invention devises specific direction compacting to obtain more stable structure and the more natural abundant texture of tangent plane.Secondly, by mechanical thin
Differential splits veneer, realizes uniform applying glue, and controls the moisture and technique of glue and veneer, realizes moist after applying glue and directly presses
System, reduces cost overcomes the strain cracking that the one-way performance difference of timber sheet material layered manufacturing material in the prior art is produced,
Unstable the problems such as, also make up such material surface texture dullness, unnatural deficiency.
In order to realize foregoing invention purpose, the invention provides following technical scheme：
A kind of a kind of artificial board, specifically heavy wood material, the artificial board is formed by veneer compacting,
Its composition is mainly common veneer.The density of the artificial board (weighing wood material) is more than 0.80g/cm3, internal bond strength
More than 1.1MPa, elastic modelling quantity is more than 8000MPa, and chord plane hardness is more than 8500N.Artificial board arbitrary tangent of the invention has
The natural texture of similar natural timber, these tangent plane textures enrich attractive in appearance naturally.
Artificial board of the invention (weight wood material), with density it is big, intensity is high, anti-corrosion and waterproof, Stability Analysis of Structures, color and luster
The good characteristics such as abundant, can use as ornament materials, can meet the use needs in the various fields of indoor and outdoor.It is specific next
Say, it can be applied to the scenes such as indoor and outdoor load-carrying members, plank road, wooden door and window and handicraft as a kind of heavy wood material.This hair
Bright described artificial board is not limited only to the imitation wood of plate construction, can also be the imitation wood of other shapes, the side of being
Just the following artificial board that is used uniformly across is described for technical scheme to be described.
Preferably, the veneer is fast growing wood single-board materials.Artificial board of the invention overcomes general natural
The defect or deficiency of fast growing wood, raw material sources enrich, low cost, practical value is high, can by common fast growing wood rotary-cut,
Sliced veneer processing and manufacturing is obtained.The fast growing wood refers to growth fast, morning of becoming a useful person, the period of felling in turn short trees kind, and China is normal
That sees has willow, eucalyptus, willow etc..
Further, the burst size of methanal of the imitation wood is less than 1.5mg/L, preferably smaller than 0.5mg/L.Wood of the invention
The heavy wood material of veneer compacting has density high, and adhesive consumption is few, remains the characteristics of less, particularly detects asking for residues of formaldehyde
During topic, effect performance is splendid, can realize environmental protection grade higher with extremely low residues of formaldehyde.Can be controlled in the case of preferably
Burst size of methanal is less than 0.2mg/L.
Further, present invention also offers a kind of method for preparing above-mentioned artificial board (weight wood material).
Specifically, the method that one kind prepares artificial board (weight wood material), particularly suppresses the side of weight wood with veneer
Method, the method is comprised the following steps：
(1) take veneer, Veneer moisture within 8-30%, preferably moisture content within 8-20%, to veneer
Two sides carries out mechanical trickle division, and applies the adhesive (being calculated with the solids content weight ratio meter of adhesive) of 8-16%.
(2) the quantitative assembly of the veneer for handling step (1) well is fitted into hopper mould, and charged hopper mould is defeated
It is fed into moulding press.
(3) blank is pressed onto in mould, moulding pressure 5-60MPa, after pressurization in place, by blank locked mode curable type in mould
In tool.
(4) mould is sent into oven heats together with blank therein, 100-145 DEG C of heating-up temperature is kept for 2-8 hours,
Complete gluing and solidifying treatment.
(5) blank after gluing and solidifying is taken out together with mould, blank is deviate from cooling, that is, obtains weight wood material.
It is raw material that the present invention is prepared in the method for artificial board using veneer, make veneer in the trickle division of machinery simultaneously
Apply adhesive, realize the controllable of uniform applying glue and resin added.Then, directional compression, allows blank to produce pressure in fixed die cavity
The displacement of certain rule is contracted and had, the blank structure of similar natural wood grain pattern is formed, it is each to gluing by after solidifying and setting, obtaining
The homogeneous texture of firm stable, and with the heavy wood material of the abundant wood texture effect in section.In step 2, veneer assembly
It is fitted into hopper mould, blank is combined into hopper mould, in case follow-up pressurization compression process.
In the processing method of artificial board of the invention, veneer (alternatively referred to as veneer) is in the same of mechanical trickle division
When applying glue, applying glue evenly, direct pressing after applying glue, it is not necessary to dry with ageing, saving energy consumption with it is artificial, and make continuous automatic
Metaplasia produces the possibility that becomes a reality.Compared with the method and corresponding plate product of existing general compacting artificial board, this hair
The artificial board of bright preparation has more natural abundant texture, and with high intensity, high rigidity, MOR high, high stability
Contour performance, can preferably improve the range of application and application value of low-quality fast growing wood.
It is of the invention main using the rotary-cut of low-density fast growing wood or (and) veneer of slicing, by mechanical lysis applying glue,
Orient compression molding, be heating and curing curable type, so as to obtain the densification weight wood material of texture-rich natural beauty, solve various low
Density timber becomes good-for-nothing timber because the defects such as material is uneven, yielding cracking, material difference are without the problem of good utilisation
The high performance material of high-quality is used, and is turned waste into wealth.
Wherein, the usage ratio control of adhesive is that solid content and the part by weight of veneer based on adhesive are controlled
System, solid content according to adhesive it is different may applying glue amount it is different, but it is overall for the solid content in adhesive relative to
The part by weight of veneer should be controlled in the proportion of certain fixation.
Further, described veneer is the veneer by the length, width and thickness specification for selecting, and shape is relatively equal
Even, preferably the moisture of control veneer is between 8-18%.The shape and structure of veneer is the basis for suppressing artificial board, choosing
Selecting veneer best in quality can preferably improve the quality and value of final finished.Preferably, selection veneer is specification
Veneer, the defect such as hole on veneer is also allowed certainly.Veneer is the basic material of adhesive bonding treatment, for difference
Veneer raw material moisture control there may be certain difference, but the moisture of veneer should not mistake in general
Height, the moisture in veneer is excessive or the very few adhesive effect that can all influence adhesive, the difficulty being typically dehydrated with veneer
For degree, by the moisture control of veneer in the proportion of 8-18%, compacting high-quality weight wood can be well realized
Material.
Further, in step (1), the two sides of veneer is carried out into mechanical trickle division, wherein " trickle division " refers to adopt
Intensive eyelet is followed closely out on veneer surface with the tooth of water chestnut taper or cone, 0.5-10 millimeters of eyelet spacing is relatively uniform, it is deep
0.1 millimeter of degree (is followed closely and worn) to veneer thickness.Preferably, the nail for veneer surface is realized using the roller of revolving-rolling
(eyelet) is processed.Purpose is to allow veneer glue energy uniformly penetrating in Process of Applying Glue, it is to avoid because gluing is bad and caused by product
Product defect.
Further, the adhesive is inorganic adhesive, synvaren, urea-formaldehyde resin adhesive, isocyanates
One or more in adhesive.The basic sheet material of veneer firmly effectively can be bonded in one by these adhesive
Rise, realize the stable adhesion compound action of veneer.
Further, in step (2), during veneer assembly loads mould, by the veneer orientation after applying glue, quantify
Assembly.When veneer orientation, quantitative assembly can preferably be controlled to suppress artificial board the veneer of basic material it
Between matching relationship so that the effect of compacting is more preferable.
Preferably, assemble pattern is side pressure assembly, and mold shape determines material shape, and compacting veneer side is rather than tradition
The plane compacting of sheet fabrication.
Preferably, the side pressure assembly is：It is arranged into the veneer after applying glue is vertical in the middle of mould so that veneer
Stacking that in a mold can be edge-on is placed, bonding press compacting veneer side so that veneer produces curved surface to become in mold cavity
Shape simultaneously produces displacement, and then can in a mold be pressed into the graceful texture as similar wood.
Further, in step (2), it is during described blank loading hopper：Will according to pre-set direction
Blank is fitted into hopper mould.
Further, in step (3), moulding pressure is 5-60MPa.Raw material is different and performance indications demand of desired product
Difference, is acted on the blank to be pressed for combining using mutually suitable pressure, can preferably ensure that veneer is effective
Compacting is combined into the closely knit material of structure.By substantial amounts of research, inventor is had found when Scrimber is suppressed, Stress control
In the range of 5-60MPa, the structural stability of the imitation wood that the shaping of blank is obtained preferably, performance optimal, the energy of consumption
Amount is controlled in relatively low level, with good economic implications.
Further, in step (4), less than 50 DEG C are cooled to.Make compacting artificial board sufficiently cool down in a mold with
Afterwards, the internal stress major part of the material that compacting is obtained is consumed, and improves the stability of the material after the demoulding.
Further, the veneer is the veneer by boiling or charing process.Can be effective by boiling treatment
Unnecessary unnecessary gtelatinous fibre, improves the rammability of veneer in removing veneer, and improves the gluing of subsequent applications
Attachment and adhesive property of the agent on veneer surface.
Preferably, boiling treatment is by veneer boiling 1-60 minutes, preferably 5-30 minutes, particularly preferred 10 minutes.
Filtering, leaches the solution of boiling timber, filters off gtelatinous fibre element composition.Raw material (veneer) is dried to moisture and is less than
15%.
Compared with prior art, beneficial effects of the present invention：
1. the inventive method is pressurizeed using the orientation assembly of veneer material, allows veneer to produce irregular deformation, is formed certainly
The curved surface change of right picture age of tree line sample, so as to form various natural texture features, resulting wood structure, homogeneous and performance
Stabilization.
2. the timber of material difference is become high-grade homogeneous solid wood material, simple and reliable process, reality by process of the invention
With property by force, low cost of manufacture, and the Material texture of output is uniform, intensity is high, and numerous physicochemical properties exceed the index of strong wood, comprehensive
Close performance good；Sheet material after hacking can be presented abundant wood grain feature, give aesthetic feeling, great dicoration.
3., according to the characteristic of material, it can replace various rare timber, be widely used in indoor floor, wallboard, floor, building
Ladder, plank road, beam column, timber structure, solid wood door and window etc..
Brief description of the drawings：
Fig. 1 is the heavy wood material appearance style of the inventive method processing and manufacturing.
Fig. 2 is the cross-sectional grain pattern after extrusion forming.
Specific embodiment
With reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
For the scope of above-mentioned theme of the invention is only limitted to following embodiment, all technologies realized based on present invention belong to this
The scope of invention.Not specified percentage is weight percentage in the present invention.
Embodiment 1
The board using poplar board (specification of the Board 1270*650*4.0 millimeters, nothing is died for the sake of honour) of moisture content 15-20% is taken, tooth-shape surface is used
It is the roller of water chestnut taper by the trickle division in veneer two sides, follows closely out intensive hole, hole is smaller than 3.0 millimeters, relatively uniform,
2 millimeters of one side depth, in mechanical disintegration immerses phenolic resin glue simultaneously, infiltrates about 5 minutes.Raw material quantitative after impregnation
(quantitative according to required density, this example is quantified according to 1.2 density) is transported in mould pressing die chamber, is first pressurizeed predetermined
Type, then 55Mpa is gradually forced into, when pressure design value is finally reached, material is packed uniform.Locked mode, material is fixed
In mould, mould is sent into heating chamber together with material, be heated to 140 degrees Celsius, mould is together with material in heating chamber
It is heating and curing, is kept 3 hours, is completed gluing and solidifying treatment.After the completion of, mould and material are taken out, cool down, the demoulding,
Obtain weight wood material.
Embodiment 2
The Eucalyptus veneer (specification 1270*700*2.0 millimeters, nothing is died for the sake of honour) of moisture content 12-15% is taken, is round with tooth-shape surface
The trickle division in veneer two sides is followed closely out intensive hole by the roller of taper, and hole is smaller than 3.0 millimeters, relatively uniform, one side
1 millimeter of depth, by the boiling water boiling 20 minutes of this Eucalyptus veneer, is filtered to remove colloid, then dries veneer to moisture and contains
Amount 13%.Being transferred to carries out applying glue on sizing applicator, in immersion phenolic resin glue, infiltrate about 3 minutes.Raw material quantitative after impregnation
(quantitative according to required density, this example is quantified according to 1.1 density) is transported in mould pressing die chamber, is first pressurizeed predetermined
Type, then 42Mpa is gradually forced into, when pressure design value is finally reached, material is packed uniform.Locked mode, material is fixed
In mould, mould is sent into heating chamber together with material, be heated to 140 degrees Celsius, mould is together with material in heating chamber
It is heating and curing, is kept 5 hours, is completed gluing and solidifying treatment.After the completion of, mould and material are taken out, cool down, the demoulding,
Obtain weight wood material.
Embodiment 3
The board using poplar board (specification of the Board 1270*650*1.2 millimeters, nothing is died for the sake of honour) of moisture content 15-20% is taken, is water chestnut with tooth form
The trickle division in veneer two sides is followed closely out intensive hole by the roller of taper, and hole is smaller than 5.0 millimeters, relatively uniform, one side
0.5 millimeter of depth, in mechanical disintegration immerses phenolic resin glue simultaneously, infiltrates about 2 minutes.Raw material quantitative after impregnation (is pressed
Quantitative according to required density, this example is quantified according to 1.0 density) it is transported in mould pressing die chamber, first pressurize pre-setting, then
35Mpa is gradually forced into, when pressure design value is finally reached, material is packed uniform.Locked mode, mould is fixed on by material
It is interior, mould is sent into heating chamber together with material, 140 degrees Celsius are heated to, mould is added together with material in heating chamber
Heat cure, keeps 3 hours, completes gluing and solidifying treatment.After the completion of, mould and material are taken out, cooling, the demoulding obtains weight
Wood material.
Embodiment 4
The Eucalyptus veneer (specification 1270*700*1.0 millimeters, nothing is died for the sake of honour) of moisture content 12-15% is taken, is water chestnut taper with tooth form
Roller by the trickle division in veneer two sides, follow closely out intensive hole, hole is smaller than 3.0 millimeters, relatively uniform, one side depth
1 millimeter, urea-formaldehyde resin adhesive, applied amount 12% (solids content percentage) are uniformly sprayed simultaneously in mechanical disintegration.Original after impregnation
Materials quantitative (quantitative according to required density, this example is quantified according to 1.1 density) is transported in mould pressing die chamber, is first pressurizeed
Pre-setting, then about 38Mpa is gradually forced into, when pressure design value is finally reached, material is packed uniform.Locked mode, by thing
Material is fixed in mould, and mould is sent into heating chamber together with material, is heated to 130 degrees Celsius, and mould is adding together with material
It is heating and curing in hot cell, is kept 3 hours, is completed gluing and solidifying treatment.After the completion of, mould and material are taken out, cool down,
The demoulding, obtains weight wood material.
Comparative example 1
Without nail treatment
The board using poplar board (specification of the Board 1270*650*4.0 millimeters, nothing is died for the sake of honour) of moisture content 15-20% is taken, phenolic aldehyde tree is immersed
In fat glue, infiltrate about 5 minutes.After impregnation raw material quantitative (it is quantitative according to required density, this example according to 1.2 density
It is quantitative) it is transported in mould pressing die chamber, first pressurize pre-setting, then is gradually forced into 55Mpa, is being finally reached pressure design value
When, material is packed uniform.Locked mode, material is fixed in mould, and mould is sent into heating chamber together with material, is heated to
140 degrees Celsius, mould is heating and curing together with material in heating chamber, keeps 3 hours, is completed at gluing and solidifying
Reason.After the completion of, mould and material are taken out, cooling, the demoulding obtains weight wood material.
The heavy wood material of this comparative example is not processed by nail, and veneer is that some are locally soaked less than glue in impregnation, is made
It is uneven into impregnation, in the process of weight wood, there is the local cracking defect caused by applying glue is not in place.
Test
Experiment material is surveyed according to related detecting method in GB GB/T17657-2013, GB18580-2001 standard
The physical and chemical index of the Scrimber that examination is prepared, as a result such as following table.
The heavy wood material physical and chemical index of table 1
Test result shows that the restructuring timber that all kinds of wood particulates of the inventive method processing or wood shavings waste material are prepared is equal
With good physical and chemical index, the performance rate of the hard solid wood such as red oak is reached, many indexs meet exterior material
Use requirement.And compared with conventional artificial's plate such as medium density fibre board (MDF), burst size of methanal is substantially reduced, and is significantly reduced because of family
Tool materials'use meets the Furniture manufacture theory of environmental protection for the harmful effect that health is caused, and improves the residence of people
Family's living environment.
Processed by trickle division, the veneer with microcellular structure for obtaining can preferably carry out applying glue and applying glue
The lifting control of uniformity so that veneer impregnation and it is compressing during, glue distribution is more uniform, veneer pressure
Pattern after curing molding processed is performed better than.And the crosslinking curing adhesive effect of adhesive and veneer is good, Formaldehyde emission rate
It is extremely low.
And the veneer after boiling treatment removing gtelatinous fibre is wherein have passed through, the closely knit lignin fibre in veneer
Content ratio is increased substantially so that veneer is bonded weight wood (artificial board, imitation wood) for being formed under adhesive effect
Also reduced accordingly with the internal bond strength weakness caused by packing higher, and internal gtelatinous fibre or disappeared so that
The overall quality of timber is significantly lifted, and is had great importance.
Weight wood pattern prepared by present invention processing as depicted in figs. 1 and 2, the overall appearance and excellent of the weight wood of veneer compacting
The outward appearance of matter timber is similar, and wooden cross-sectional grain of weight also complies with the section performance of general high-quality timber, with extremely
Outstanding appearance.
Timber supply and demand is particularly thorny, and China year Wood demand increases year by year, the wood supply particularly strong wood of redwood class
Reduce year by year, become rare, artifical board material of the present invention possesses the advantageous characteristics such as density, texture, the hardness of redwood class material,
Compared with strong wood material, density is adjustable, texture is naturally adjustable, material is gauge material, using more saving, material matter is not variable
Shape；It is the preferable substitute products of high-end strong wood, it is possible to reduce the destruction of wildwood, comprehensive benefit is notable.
Claims (10)
1. a kind of artificial board, described artificial board is formed by veneer compacting, and it is single that its composition is mainly common wood
Plate；The density of the artificial board is more than 0.80g/cm3, more than 1.1MPa, elastic modelling quantity is more than 8000MPa, string for internal bond strength
Surface hardness is more than 8500N.
2. artificial board as claimed in claim 1, it is characterised in that the veneer is fast growing wood single-board materials.
3. artificial board as claimed in claim 1, it is characterised in that the burst size of methanal of the imitation wood is less than 1.5mg/L.
4. a kind of method for preparing artificial board, the method is comprised the following steps：
（1）Veneer is taken, within 8-30%, the two sides to veneer carries out mechanical trickle division to Veneer moisture, and applies 8-
16% adhesive, is calculated with the solids content weight ratio meter of adhesive；
（2）By step（1）The quantitative assembly of the veneer handled well is fitted into hopper mould, by charged hopper mould convey into
Enter in moulding press；
（3）Blank is pressed onto in mould, moulding pressure 5-60MPa, after pressurization in place, by blank locked mode curable type in mould
In；
（4）Mould is sent into oven heats together with blank therein, 100-145 DEG C of heating-up temperature is kept for 2-8 hours, completed
Gluing and solidifying treatment；
（5）Blank after gluing and solidifying is taken out together with mould, blank is deviate from cooling, that is, obtain weight wood material.
5. the method for preparing artificial board as claimed in claim 4, it is characterised in that the veneer is the length by selecting
The veneer of degree, width and thickness specification, shape is relatively uniform, and preferably the moisture of control veneer is between 8-18%.
6. the method for preparing artificial board as claimed in claim 4, it is characterised in that step（1）In, the two sides of veneer is entered
The mechanical trickle division of row, " trickle division " refers to that veneer surface is followed closely out into intensive eyelet using the tooth of water chestnut taper or cone,
0.5-10 millimeters of eyelet spacing, 0.1 millimeter of depth arrives veneer thickness.
7. the method for preparing artificial board as claimed in claim 4, it is characterised in that the adhesive is inorganic adhesive, phenol
Urea formaldehyde adhesive, urea-formaldehyde resin adhesive, isocyanate adhesive etc., it is therein one or more.
8. the method for preparing artificial board as claimed in claim 4, it is characterised in that step（2）In, veneer assembly loads mould
During tool, by the veneer orientation after applying glue, quantitative assembly.
9. the method for preparing artificial board as claimed in claim 4, it is characterised in that step（2）In, described blank loads material
It is during groove：Blank is fitted into hopper mould according to pre-set direction.
10. the method for preparing artificial board as claimed in claim 4, it is characterised in that step（3）In, moulding pressure is 5-
60MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064863.9A CN106738112A (en) | 2017-02-05 | 2017-02-05 | A kind of heavy wood material suppressed with veneer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064863.9A CN106738112A (en) | 2017-02-05 | 2017-02-05 | A kind of heavy wood material suppressed with veneer and preparation method thereof |
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| CN107160509A (en) * | 2017-06-13 | 2017-09-15 | 芜湖桑健电子科技有限公司 | The processing method of sauna house plank |
| CN107414976A (en) * | 2017-09-21 | 2017-12-01 | 中山市富木木制品有限公司 | A kind of moulding process of sheet |
| CN107672240A (en) * | 2017-10-17 | 2018-02-09 | 深圳市零壹创新科技有限公司 | A kind of carbon fiber sheet and its manufacture method |
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| CN107672240A (en) * | 2017-10-17 | 2018-02-09 | 深圳市零壹创新科技有限公司 | A kind of carbon fiber sheet and its manufacture method |
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Application publication date: 20170531 |