CN1931535A - Manufacture of directionally flooring wooden particle board, press machine and produced wooden particle board - Google Patents

Manufacture of directionally flooring wooden particle board, press machine and produced wooden particle board Download PDF

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Publication number
CN1931535A
CN1931535A CNA2006101086448A CN200610108644A CN1931535A CN 1931535 A CN1931535 A CN 1931535A CN A2006101086448 A CNA2006101086448 A CN A2006101086448A CN 200610108644 A CN200610108644 A CN 200610108644A CN 1931535 A CN1931535 A CN 1931535A
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China
Prior art keywords
binder
blanket
temperature
forcing press
continuous operation
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CNA2006101086448A
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Chinese (zh)
Inventor
G·冯哈斯
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Dieffenbacher GmbH and Co KG
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Dieffenbacher GmbH and Co KG
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Publication of CN1931535A publication Critical patent/CN1931535A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres
    • B27N3/143—Orienting the particles or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The invention relates to a method for continuously manufacturing of wooden particle board by a pressing machine and sclerously continuous wooden particle board, which is characterized by treating pressing materials with adhesive hardening in 10 minutes at 90-105 DEG C. The pressing materials are spread out as a mat to achieve a board density of 860-950 kg/m<3> after continuous press to a rated strength. The pressing materials, preheated to 90-105 DEG C, are fed to the pressing machine at a pressure of 4-6N/mm<2> and a temperature of the steel belt of 90-130 DEG C, preferably 110-120 DEG C. During pressing, what important is that, over the entire cross section, the temperature of the pressing material should neither fall below the preheating temperature, nor exceeds 120 DEG C. As to the pressing machine, a rolling surface of a high pressure roller thereof must have a rigidity over 450HB due to the high strength soil compaction in the manufacture process.

Description

Method for continuous production, the forcing press of the timber plate of orienting spreading and the timber plate of making
Technical field
The present invention relates to the forcing press and the claim 10 timber plate of making by the orienting spreading batten as described in the preamble of continuous operation of method, claim 9 this method of enforcement as described in the preamble of the timber plate (Holzwerkstoffplatten) of claim 1 continuous manufacturing orienting spreading as described in the preamble.
Background technology
In order to make the timber plate, use the forcing press of discontinuous multi-daylight press and continuous operation usually, wherein between the steel band of two rotations at the mated formation binder blanket (Pressgutmatte) of the binder particle that scribbles adhesive of heating and pressurized conditions lower compression.Except pure particle board (MDF), also use the batten of riving.This batten generally is an orienting spreading, so that give the timber plate of making bigger intensity at vertical and horizontal.Therefore according to be orienting spreading on vertical and horizontal (OSB) or only in the vertical directed (OSL) distinguish manufacture method.Generally preparation density is up to 750 kilograms/meter on continuous double belt press 3Above-mentioned OSL plate and OSL plate.With different drawing methods density is brought up to 750 kilograms/meter 3Above the experiment failed of success, because leave the forcing press still plate of heat cracking or strong bounce-back later on, makes the thickness of plate increase, and obviously reduce density thus.
A kind of method of making veneer plate, fiberboard and similar timber plate by compacting and curing binder blanket is continuously disclosed among DE 102 06 861A1.This method is used 220 ℃ hot plate temperature when beginning to suppress, use 120 ℃ hot plate temperature in the press portion afterwards, also removes the steam in the plate simultaneously.By in the nip region process of continuous press, binder blanket surface, the roughly temperature curve from surperficial 20% place and binder blanket center is illustrated among Fig. 1 approximately according to this method.As seen, binder blanket surface temperature trends towards identical with the temperature of preceding 20% superficial layer binder by 170 ℃ in compacting period or press time the first half about 45% among the figure.Simultaneously, the temperature stabilization at binder blanket center raises.After beginning to cool down, the surface begins to cool down, and then the upper surface layer of binder also begins cooling, and delay is arranged slightly.Meanwhile, the temperature at binder blanket center continues to raise, though continue to transmit to binder blanket center because carried out cooling off the heat that imports into.According to this method that combines these parameters, the temperature of binder blanket is obviously above 120 ℃.Though be lower than according to the plate of this method manufacturing hot plate temperature or surface temperature in continuous press and carried out cooling under 80 ℃ the condition but after leaving continuous press, still ftractureed, because the temperature at binder blanket center surpasses 120 ℃, the temperature at binder blanket center is too high when coming out from continuous press like this.And when with short press time operation, the adhesive that mat formation material surface and nearly upper surface are mated formation on the material (superficial layer at thickness 20% place) can not solidify under the temperature more than 100 ℃ fully.Therefore, the press time in short-term superficial layer can not resist the interior pressure that sandwiches steam in the plate and ftracture.
In test, in the very long press time, be preheating to preheat temperature more than 90 ℃, then can not successfully make density greater than 900 kilograms/meter if temperature of no use is 120 ℃ a pressing plate 3High-density plate.When thickness was 28 millimeters, the press time was about 30 minutes.In pressing process, batten is not sufficiently softened.This at first with long-time in do not have heated binder blanket center relevant.Because the specific pressure in the compacting incipient stage must approach 5N/mm 2So some wooden cells are broken, thereby the bending strength of plank is reduced.After the compacting, because the batten that is not softened bounce-back, plank thickness improves 5-10% with respect to nominal thickness, and density is reduced to 840 kilograms/meter 3
At present, the application of high density oriented strand board on container industry has global economic implications.The Chinese Industrial Standards (CIS) regulation of container plate, when the pillar distance was 250 millimeters, the bending strength of 28 millimeters thick container bodies was 69N/mm 2Compare with detecting bending strength, European standard has been stipulated bigger pillar distance, thereby has also caused higher bending strength.Yet in bend test, 250 millimeters less pillar distance also cause plank neutrality mutually in very high shearing requirement.So far, mainly be that density is 900 kilograms/meter 3About glued board as the container body plate.Except high bending strength, the plate surface also should have enough hardness and enough scuff resistances.The load that the vehicle of fork load-unload machine and so on acts on plank must be distributed in the plank with respect to the vertical and horizontal of vehicle.
Owing to these high requests, can't successfully satisfy the plate of container manufacturing requirement so far by the batten manufacturing.In addition, press for substituting for plywood,, but also be difficult to fungicide (bacteriostatic agent) dipping thick china because the required thick china of glued board is very expensive.Because the container of high percentage wants shipping to all over the world on the container ship, the container plates high air humidity in the poor cabin that will stand to ventilate in a large number.Therefore, be absolute preferred by the container plate of making the infringement of anti-mould and fungi.
Summary of the invention
Task of the present invention provides a kind of method, can make the timber plate by the batten of orienting spreading on the continuous press in the short press time in this way, and the thickness of this timber plate is the 25-120 millimeter, and plate density is 850 kilograms/meter 3More than, be preferably 900 kilograms/meter 3
The technical scheme of this method is: before mating formation to the mold pressing band binder is mixed with adhesive, this adhesive can be at 10 minutes with interior curing under 90-105 ℃ temperature, then binder is mated formation into the binder blanket, so that after the forcing press central roll of described continuous operation is depressed into specified intensity, the density of this timber plate reaches 860-950 kilogram/rice 3, then before entering the forcing press of described continuous operation, on entire cross section, be preheating to 90-105 ℃ temperature by the binder binder blanket that forms of mating formation with described, after entering the forcing press of continuous operation, described binder blanket is applied 4-6N/mm 2Pressure, use 90-130 ℃ simultaneously, preferred 110-120 ℃ temperature of steel strips heats described binder blanket, should not be lower than preheat temperature in the temperature of binder blanket on entire cross section described in the pressing process continuously, and be no more than 120 ℃ of maximum temperatures.
The above-mentioned principle of making the method for high density timber plate by directed long stuff is: the heat in the continuous press does not almost pass to the binder blanket, vapour pressure when therefore leaving the forcing press of continuous operation in the timber plate is always very low, and the result can not split on timber plate surface when opening forcing press.Use the adhesive that can in 10 minutes, solidify under the preheat temperature about 100 ℃ for this reason.When leaving forcing press in the timber plate on the cross section maximum temperature at each some place all must be lower than 120 ℃.Being lower than the maximum steam overvoltage that produces under 120 ℃ the temperature is 1 crust, and this steam overvoltage applies 0.1N/mm to the timber plate 2Tensile stress.This tensile stress is starkly lower than 0.5N/mm 2The transverse tensile strength of hot timber plate.Heating surface temperature according to this method is 110-150 ℃ in up to 40% roll-in length, is 100-130 ℃ in 40% following roll-in length, is preferably 110-120 ℃.The heating surface temperature is than about high 5-10 ℃ of temperature of steel strips or binder blanket surface temperature, because heating surface has heat loss by scattering or convection current to chain or roll and product reverse side.
Yet, binder blanket surface also should be cooled to below the preheat temperature in this forcing press, because will prolong the hardening time of adhesive in the surface like this, thereby must reduce the speed of binder blanket by the forcing press of continuous operation, perhaps can not successfully suppress, because the adhesive in the surface can not solidify fully at all.When the very thick plate of compacting with also not carrying out heating and cooling the heat time heating time of lacking, because the heat transmission in binder is very slow.Yet this has also illustrated the heat transmission of the cooling time difference.If the surface is being heated to more than 170 ℃ this surface of cooling, back, although then the temperature that the palette center is cooled off on the surface still continues to raise, because the layer that has heated between surface and binder blanket center still continues binder blanket center is heated.The cooling on surface is equally also only entered into very slowly the center of blanket along with the increase of plate thickness.For example when surface temperature is heated to 170 ℃, when being cooled to 80 ℃ then on 50% roll-in length, binder blanket central temperature is elevated to 130 ℃.Has local cracking at this plate of the forcing press exit of continuous operation at last.
Yet in contrast, long stuff must enough be softened in whole pressing process, thereby guarantees good each other contact and can be compressed to 800 kilograms/meter 3Above density can not rebound after the timber plate leaves the forcing press of continuous operation simultaneously.For this reason, the humidity of binder blanket in the time of 100 ℃ is greater than 5-18%, and preferred 8% is just enough.Have only humidity is obtained 860 kilograms/meter greater than 100 ℃ of ability of 6% batten preheating 3Above plate density is because all battens in the binder blanket had been softened before entering the forcing press slit of continuous operation.By softening, the wooden cell of each in the batten can not be broken when compression, and long stuff can be close together mutually.On the cross section of timber plate, do not form shrinkage hole, so improved mechanical strength yet.
In the pressing process, compressing more internal stress in the batten than eliminating under the binder blanket temperature conditions at 100 ℃ under the damp condition of 120 ℃ binder blanket temperature and 8%, because the combination of this humidity and temperature approaches desirable timber softening point.The desirable softening point of long stuff is 10% humidity and 120 ℃ temperature.
Eliminate by the stress of optimizing, can reduce the bounce-back of opening plate after the forcing press, and can in the process of the forcing press by continuous operation, reduce the time that eliminates stress.
Because in continuous pressing process, needn't evaporate and the continuous press in relative set in steam itself in the controlled vaporization process can not spill, so the humidity of binder blanket only reduces a little in pressing process continuously.Can make the timber plate that humidity is 8-11% with method of the present invention, also approach equilibrium humidity.The remarkable advantage of less distortion after the timber plate in the time of can obtaining the ambient humidity change like this.In addition, can be compressed to the press time the pure hardening time of adhesive, and needn't prolong by loss balancing or pressure-sizing stage.
Pressure curve can be regulated like this, in preceding 30% part of compacting the binder blanket is compressed to than later nominal thickness and manys 2-10%, then the slit stable regulation of forcing press is arrived later nominal thickness.Produce the soft crude density curve along the timber plate thickness thus, top layer density is than the high approximately double centner of middle level density/rice 3Specific pressure during the compacting beginning is 4-6N/mm 2Therefore, element, most of heating plate or its roll-in face of transmission pressure should have enough hardness in the continuous press.According to the possibility of used forcing press transmission high pressure, also should check roll or similar pressure transmission device.
Press time except with the required time that eliminates stress, also relevant with hardening time of adhesive under the preheat temperature.Standard MDI generally solidifies in the time about 3-5 minute at 105-110 ℃.For the plate of 28 millimeters thick, about 7 seconds/millimeter compacting factor can be reached for this reason, and, about 1.5 seconds/millimeter compacting factor can be reached for the plate of 120 millimeters thick.In the time of can certainly using 105 ℃ hardening time 2 minutes with interior activation MDI or rapid curing phenolic resin glue, can reduce the press time like this.
Density is up to 850 kilograms/meter 3, preferred 900 kilograms/meter 3, and be that 180 millimeters and thickness are the high request that the performance of the plate made of 0.7 millimeter batten satisfies global container body standard with the length of portrait orientation only.Therefore, can be used for container body to the plate that batten is made.In averag density is 900 kilograms/meter 3The situation undersurface layer in up to 980 kilograms/meter 3Regulated high density make this plate have high wearability and hardness.Before mating formation, above-mentioned batten for example can be handled by spray or splash fungicide or pesticide.These battens also can be placed in the various medicaments and flood.Using under the situation of steam preheating, the consumption of MDI adhesive is 6-8% by used adiabatic drying timber (atro Holz).The length of batten is the 180-220 millimeter, and thickness is the 0.5-1.2 millimeter, is preferably the 0.6-0.9 millimeter.Can obtain the good orientation of batten with these batten length, departing from the average angle of timber plate major axis is 10 °.Used batten thickness has improved shear strength, and helps the timber plate of gained to obtain smooth surface.
Description of drawings
The further advantageous measure of theme of the present invention and facility can be by being understood in dependent claims and the following description to accompanying drawing.
Accompanying drawing is represented:
Fig. 1: describe in the prior art binder temperature curve in the pressing process in continuous press.
Fig. 2: binder temperature curve example in the pressing process in continuous press when using the inventive method.
Fig. 3: the schematic diagram that the forcing press slit was done the press time when using the inventive method.
The specific embodiment
The temperature curve of the known prior art of qualitative representation among Fig. 1.Be under 28 millimeters the situation at the nominal thickness that the timber plate will reach, adopt 180 seconds press time.Record binder blanket surface (O) among the figure that temperature is done a press time, approximately from the temperature curve at surperficial 20% place (20%) and binder blanket center (M).As seen, the binder temperature at 20% place was identical above 170 ℃ binder blanket surface temperature (M) was tending towards in the superficial layer (20%) in the first half of about 45% compacting period or press time among the figure.Meanwhile, the temperature stabilization of binder blanket center (M) rises.After the cooling beginning, surface (O) begins to cool down, and then the upper surface layer (20%) of binder also begins cooling, and delay is arranged slightly.Meanwhile, the temperature at binder blanket center (M) continues to raise, though continue to transmit to binder blanket center (M) because carried out cooling off the heat that imports into.In conjunction with these parameters, the temperature at binder blanket center (M) is obviously above 120 ℃ in this method.
Fig. 2 shows that surface (O) temperature that directly enters at binder behind the forcing press of continuous operation according to the present invention is stable basically.The temperature at binder blanket center (M) approaches the temperature of surface (O) all the time, and binder upper surface layer (20%) has just reached surface temperature after 1/3 compacting period.Particularly when using time dependent forcing press slit shown in Figure 3, promptly when about 1/3 compacting alleviates pressure to the forcing press slit after the period, can cause the compression additional like this, and can make the wood ribbon surface of making have enough abrasion-resistant qualities superficial layer.
Above-mentioned press time example is relevant with used batten, also relevant with used glue certainly, the pre-heat affecting that is applied simultaneously.Above-mentioned temperature also can depart from scope of the present invention, but still has required effect when making the high density wood ribbon.
In order to apply high pressure as far as possible losslessly, must in the forcing press of the continuous operation that can apply the required pressure of compacting high density wood ribbon, do technological improvement.May constructing by a last annular element and a following annular element, two steel bands of also described binder blanket being brought into forcing press around described annular element rotation of a kind of forcing press of continuous operation constitutes; the steel band that rotates simultaneously with roll is supported by the heating surface of described annular element, and this heating surface is protected by roll-in face.The roll-in mask of described roll in high pressure range has the hardness more than the 450HB.In the similar forcing press of another kind structure, must make force transfer element certainly, thereby can produce by the inventive method.Also should be specifically noted that simultaneously the thickness of used steel band.
When being that 180-220 millimeter and thickness are the 0.5-1.2 millimeter by the inventive method length, when the machine-direction oriented batten that is preferably the 0.6-0.9 millimeter was made the timber plate, the thickness of this plate should be the 25-120 millimeter, and density is 860-950 kilogram/rice 3, be preferably 900 kilograms/meter 3, bending strength is greater than 80N/mm 2
Timber plate temperature in each layer when leaving the forcing press of continuous operation of for this reason leaving the forcing press of continuous operation all must be lower than 120 ℃.Above-mentioned preheating is carried out with steam, hot-air, steam-air mixture and/or microwave.MDI can be by the dosage of weight (atro) 6-8% of used adiabatic drying timber as adhesive.Also can 105 ℃ of hardening times 2 minutes with interior activation MDI or the rapid curing phenolic resin glue that contains curing agent as adhesive.Optimum uses length to be the 180-220 millimeter, and thickness is the 0.5-1.2 millimeter, is preferably the orientable batten of 0.6-0.9 millimeter.
List of reference numerals: DP1310
The temperature at M binder center
The temperature on O binder surface
In 20% binder from the temperature at surperficial 20% binder thickness place

Claims (11)

1. the method for continuous production of a timber plate, wherein in paving station, on the mold pressing band of running continuously, form the binder blanket, this binder blanket is made of to the strip batten of vertically mating formation or vertically also laterally mat formation with respect to producer one or more layers, this binder blanket enters around back between the press steel band of the continuous operation of annular element rotation up and down and be solidified into continuous timber plate under the heating pressurized conditions, it is characterized in that this method is carried out as follows:
1.1 before mating formation to the mold pressing band, binder is mixed with adhesive, this adhesive under 90-105 ℃ temperature can 10 minutes with interior curing,
1.2 binder is mated formation into the binder blanket, so that after the forcing press central roll of described continuous operation is depressed into specified intensity, the density of this timber plate reaches 860-950 kilogram/rice 3,
1.3 before entering the forcing press of described continuous operation, on entire cross section, be preheating to 90-105 ℃ temperature by the binder binder blanket that forms of mating formation then with described,
1.4 after entering the forcing press of continuous operation, described binder blanket is applied 4-6N/mm 2Pressure,
1.5 with temperature is 90-130 ℃, preferred 110-120 ℃ steel band heats described binder blanket, should not be lower than preheat temperature in the temperature of binder blanket on entire cross section described in the continuous pressing process, and be no more than 120 ℃ of maximum temperatures.
2. the method for claim 1 is characterized in that, timber plate temperature in each layer when leaving the forcing press of continuous operation of leaving the forcing press of continuous operation is lower than 120 ℃.
3. method as claimed in claim 1 or 2 is characterized in that, on 1/3 effective roll-in length of the forcing press of described continuous operation, described binder blanket is compressed to than later nominal thickness and manys 2-10%.
4. as each described method among the claim 1-3, it is characterized in that described preheating is carried out with steam, hot-air, steam-air mixture and/or microwave.
5. as each described method in the claim 14, it is characterized in that, MDI in by the dosage of the weight 6-8% of used adiabatic drying timber as adhesive.
6. as each described method among the claim 1-5, it is characterized in that, 105 ℃ of hardening times 2 minutes with interior activation MDI or the fast dried phenolic resins glue that contains curing agent as adhesive.
7. as each described method among the claim 1-6, it is characterized in that length is the 180-220 millimeter, thickness is the 0.5-1.2 millimeter, and the orientable batten that is preferably the 0.6-0.9 millimeter is as binder.
8. as each described method among the claim 1-7, it is characterized in that described binder was handled with pesticide or fungicide before mating formation.
9. implement the forcing press of the continuous operation of the described method of claim 1; it goes up annular element by one and a following annular element, two steel bands of also described binder blanket being brought into forcing press around described annular element rotation constitute; the steel band that rotates simultaneously with roll is supported by the heating surface of described annular element; this heating surface is protected by roll-in face; it is characterized in that the roll-in mask of described roll in high pressure range has the hardness more than the 450HB.
10. press the timber plate that the described method of claim 1-8 is made, it is characterized in that, described batten is only by vertically mating formation, the length of described batten is the 180-220 millimeter, thickness is the 0.5-1.2 millimeter, be preferably the 0.6-0.9 millimeter, the thickness of slab of making the timber plate is the 25-120 millimeter, and plate density is 860-950 kilogram/rice 3, be preferably 900 kilograms/meter 3, bending strength is greater than 80N/mm 2
11. timber plate as claimed in claim 10 is characterized in that, used batten is handled with pesticide and/or fungicide.
CNA2006101086448A 2005-07-27 2006-07-26 Manufacture of directionally flooring wooden particle board, press machine and produced wooden particle board Pending CN1931535A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510035214 DE102005035214A1 (en) 2005-07-27 2005-07-27 Manufacture of wooden particle board, coats particles with specified adhesive, preheats before pressing and controls temperature over entire cross section
DE102005035214.6 2005-07-27

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CN1931535A true CN1931535A (en) 2007-03-21

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Cited By (2)

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CN101885202A (en) * 2009-05-13 2010-11-17 迪芬巴赫有限两合公司 Produce the application of method, high density material plate and the plate of material of high density material plate with wooden raw material or the xyloid raw material of class
CN110861176A (en) * 2019-11-25 2020-03-06 黄河三角洲京博化工研究院有限公司 Preparation method of recombined wood

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ES2395694T3 (en) 2009-03-04 2013-02-14 Flooring Technologies Ltd. Procedure and installation to manufacture a wood fiber plate
DE102010029486A1 (en) 2010-05-30 2011-12-01 Dieffenbacher Gmbh + Co. Kg Method and plant for producing a multilayer material plate and a material plate
CN103692506B (en) * 2013-12-24 2015-06-10 南京工业大学 Glue laminated wood member pressurizing preparation process based on air-dried wood density parameters
CN103934867B (en) * 2014-05-16 2016-01-20 南京林业大学 The associating preheating hot-press method that large gauge bamboo recombined material is continuously shaped
CN105034092B (en) * 2015-06-25 2017-10-10 南京林业大学 A kind of efficient production method for being cold-pressed Recombined bamboo
DE102017110122A1 (en) * 2017-05-10 2018-11-15 Dieffenbacher GmbH Maschinen- und Anlagenbau Method for producing a material plate and a material plate
DE202017102815U1 (en) 2017-05-10 2018-06-12 Dieffenbacher GmbH Maschinen- und Anlagenbau Material board

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885202A (en) * 2009-05-13 2010-11-17 迪芬巴赫有限两合公司 Produce the application of method, high density material plate and the plate of material of high density material plate with wooden raw material or the xyloid raw material of class
CN101885202B (en) * 2009-05-13 2015-09-09 迪芬巴赫机械工程有限公司 Produce the method for high density material plate, high density material plate and application thereof
CN110861176A (en) * 2019-11-25 2020-03-06 黄河三角洲京博化工研究院有限公司 Preparation method of recombined wood
CN110861176B (en) * 2019-11-25 2021-03-09 黄河三角洲京博化工研究院有限公司 Preparation method of recombined wood

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