EP2487016A1 - Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis - Google Patents

Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis Download PDF

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Publication number
EP2487016A1
EP2487016A1 EP11001184A EP11001184A EP2487016A1 EP 2487016 A1 EP2487016 A1 EP 2487016A1 EP 11001184 A EP11001184 A EP 11001184A EP 11001184 A EP11001184 A EP 11001184A EP 2487016 A1 EP2487016 A1 EP 2487016A1
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EP
European Patent Office
Prior art keywords
liquid
particle mass
particle
needle
surface tension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11001184A
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English (en)
French (fr)
Inventor
Tomas Joscak
Matus Joscak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dascanova GmbH
Original Assignee
Dascanova GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dascanova GmbH filed Critical Dascanova GmbH
Priority to EP11001184A priority Critical patent/EP2487016A1/de
Publication of EP2487016A1 publication Critical patent/EP2487016A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a method and apparatus for the production of a particle based element.
  • particle based elements are manufactured from particles such as wood chips, wood fibers, sawmill shavings, sawdust or other organic or non-organic fibers.
  • the most common forms of particle based elements are particle boards, but also more complicated geometries may be realized.
  • the manufacture of particle based elements is usually carried out by mixing a particle mass with a resin, such as amino, formaldehyde based resins, urea melamine, phenol formaldehyde or resorcinol resins. Furthermore, other components may be mixed into the particle mass such as wax, dyes, wetting agents and release agents. After the resin has been mixed into the particle mass, the particle mass is arranged for further processing and pressed under high temperature to form the particle based element.
  • a resin such as amino, formaldehyde based resins, urea melamine, phenol formaldehyde or resorcinol resins.
  • other components may be mixed into the particle mass such as wax, dyes, wetting agents and release agents.
  • the aforementioned method does not allow to only locally increase the moisture content in the particle mass, as the pressurized steam is subjected along the whole cutting line to both parts of the particle mass. Further, the pressure with which the steam is injected distributes the moisture through the whole particle mass, which is a desired effect in the aforementioned teaching. Furthermore, additives may be injected, however always with the focus of trying to obtain an even distribution throughout the particle mass.
  • the present invention has the object to provide a method and apparatus for the production of a particle based element, which allows to locally change the compression qualities of the particle based element before pressing, in a cost efficient and reliable manner.
  • inventive method and apparatus should be capable of producing particle based elements with locally increased densities to increase the strength of the particle based elements.
  • the object is attained by injecting a liquid which comprises water and a surface tension reducing component, to facilitate the distribution of the liquid within the particle mass.
  • the particle mass, which is processed in this manner, is then provided to a press and a high pressure is applied to the particle mass, such that the particles are bond to each other.
  • Those particles which are soaked with the liquid have different compression properties.
  • the particles soaked with liquid can be more easily deformed and will thus be compressed into a state of higher density, than the other particles, which have not been subjected to the liquid.
  • a structure of higher density can be obtained at defined locations in the particle based element.
  • the liquid is injected at discrete locations in the particle mass.
  • a continuous region of the particle mass can be provided with the liquid, such that locally a continuous area of higher densities is obtained after pressing.
  • the liquid can also be injected along a line, and not only at discrete points, which also has benefits over the known prior art regarding the injection of steam, as no steam generators are necessary, but water with surface tension reducing component can be injected in its liquid phase.
  • the method is cheaper and safer.
  • the surface tension reducing component is a tenside.
  • a tenside is a surfactant which enables to lower the surface tension of a liquid.
  • Tensides are usually amphiphilic, containing both hydrophobic groups and hydrophilic groups, and reduce the surface tension of water by arranging themselves on the surface of water.
  • the surface tension reducing component may be a foaming agent, a non-polar fluid, or small particles which enable to reduce the surface tension of water.
  • the surface tension reducing component is a detergent.
  • Detergents such as soap are readily available on the market and there are various detergents which are also eco-friendly, such that they can be used in environment-friendly products.
  • the liquid may comprise up to fifty volume per cent of surface tension reducing component or even more, however in a preferred embodiment it has been shown that up to four volume per cent of the surface tension reducing component is enough to obtain the desired results. For many surface tension reducing components, such as detergents like soap, a concentration of up to three volume per cent is sufficient.
  • the liquid is introduced at several discrete locations to form a continuous and/or discontinuous freeform-surface of liquid within the particle mass, enabled by the distribution of the liquid within the particle mass.
  • the particle mass can be pre-pressed before the introduction of liquid, such that the later deformation of the particle mass in the press is reduced and the location of the freeform-surfaces can be defined more precisely.
  • the pre-pressing may be carried out at different compression levels.
  • the freeform-surface or the freeform-surfaces can be arranged such that they are supporting the bending, tear or shear stability of the particle based element.
  • the freeform-surface may be in the form of a wave in between the upper and the lower surface of the particle based element, which is preferably in the form of a particle board.
  • the bending stability of the particle board can be efficiently increased.
  • the wave-like structure may be provided only in one direction of the particle mass, wherein the free-form surface remains at a constant height along the other direction in the particle mass.
  • the freeform surface may be composed by superposition of two wave-like structures in perpendicular directions in the particle mass.
  • the liquid is also applied to the outside layers of the particle mass.
  • the outside of the particle mass can be hardened during the pressing process due to the higher compressibility of the particles provided with the liquid.
  • a harder outside of the particle based element can be obtained.
  • the liquid has a substantially ambient temperature, as it is not heated before injection.
  • no additional heating element has to be provided which renders the method more cost efficient.
  • the method can be operated safer, as any operating personal cannot be injured by hot water or steam. It is emphasized that the only restriction is that the liquid should have a temperature which is higher than zero degrees, as otherwise the distribution would not be carried out properly. However, ambient temperature is preferred for the purpose of localized distribution of the liquid.
  • the above-mentioned object is further obtained by providing an apparatus with an injection means which is adapted to introduce the liquid at a discrete location inside the particle mass, wherein the liquid comprises water and a surface tension reducing component to facilitate the distribution of the liquid within the particles.
  • the liquid comprises water and a surface tension reducing component to facilitate the distribution of the liquid within the particles.
  • the inventive apparatus allows to provide the particle mass with water at discrete locations, such that these discrete locations have different compressing properties, and will in particular be compressed more and thus have a higher density after a pressing operation.
  • the apparatus may also be operated with any other fluid in a beneficial manner, such that at least an aspect of the invention is not restricted to the use of water and the surface tension reducing component.
  • the injection means is a needle, which is adapted to be introduced into the particle mass, the needle comprising at least one discrete opening, which serves the purpose of injecting the liquid into the particle mass.
  • the discrete opening refers to a point opening which allows a very precise injection of the liquid into the particle mass.
  • the needle allows to be inserted into the particle mass, without rearranging the particles too much or without cutting or destroying a pre-compressed particle mass. It is emphasized that the discrete opening is not necessarily at the tip of the needle, but may also be provided at any other position along the needle or at several positions along the needle.
  • the discrete opening is provided at the tip of the needle. This allows, that the depth of the insertion of the needle for the purpose of injecting the liquid in the particle mass is only minimal.
  • the opening can be provided at the side of the tip of the needle, to avoid that particles enter the opening during the insertion process.
  • the needle can be provided with an inclined, sharpened or pointed tip to facilitate the insertion in the particle mass.
  • several needles are provided at a holder and are adapted to be moved and/or rotated together with the same.
  • the liquid is injected at various discrete locations.
  • the needle is adapted to be moved and/or rotated individually.
  • the needle or each of the needles can be brought into the preferred orientation and location for the injection process, and can in particular be inserted from various angles into the particle mass to allow an injection of liquid at defined locations.
  • a combination of a holder with needles and individually driven needles can be provided.
  • the holder can be provided with needles which can be moved or rotated relatively to the holder.
  • the needle can be moved and/or rotated during the injection process, and the liquid can be provided continuously during the movement of the needle and is thus distributed along a line in the particle mass.
  • the injection means is a blade which is adapted to be introduced into the particle mass, the blade comprising at least one discrete opening, which serves the purpose of injecting the liquid into the particle mass.
  • the blade allows easily to be inserted into the particle mass by cutting and to introduce the liquid at at least one discrete location which corresponds to the discrete opening of the blade.
  • the discrete opening is provided at the edge of the blade.
  • the injection can be carried out directly at the location of the cut through the particle mass, such that both sides of the particle mass are provided with the liquid.
  • a high frequency source preferably an ultrasound source, is used to accelerate the distribution of the liquid within the particle mass.
  • the high frequency source facilitates the distribution of the liquid in between the particles and the absorption of the liquid by the particles.
  • the present invention further relates to the use of liquid comprising water and a surface tension reducing component to locally alter the compressibility of a particle mass, in particular before pressing the particle mass to form a particle based element.
  • the compressibility is increased.
  • the surface tension reducing component may be provided in the particle mass before the injection of water and may be mixed with the injected water in the particle mass.
  • a particle mass 1 is shown which is transported on a conveyance means 2, such as a belt, in the conveyance direction D.
  • the particle mass 1 comprises a mixture of wood fibers, chips and resin, respectively glue, in the form of a board and is shown in cross section.
  • the height of the board which can be seen in the upright direction in Figure 1 is substantially smaller than the width of the board which is perpendicular to the figure plan.
  • the length of the board is not defined, as Figure 1 shows a continuous production process, wherein the individual boards will be obtained by means of cutting the continuously produced board.
  • the needles 3 comprise a channel 4, through which a liquid being water provided with a small amount of detergent is injected via an opening 5 into the particle mass 1.
  • the distribution of the liquid in the particle mass 1 is indicated as moisturized areas 6, 7.
  • the moisturized areas 6 are provided close to the lower side of the particle mass 1, while the moisturized areas 7 are provided within the particle mass in a distance to the outside of the particle mass 1.
  • each needle 3 can first inject liquid close to the lower side of the particle mass 1 as shown for the leftmost needle to create a moisturized area 6, and then inject liquid at a discrete location within the particle mass 1 to create a moisturized volume 7.
  • the needle 3 has a pointed tip to facilitate the insertion of the needle 3 into the particle mass 1.
  • the opening 5 is provided in the inclined portion of the pointed tip.
  • the needles 3 reciprocatingly move in the vertical direction and are further adapted to move synchronized with the conveyance velocity in the horizontal direction during the injection process.
  • the conveyance means 2 may stop during the insertion of the needles 3.
  • another small quantity of liquid is injected into the particle mass 1, such that the moisturized volume 8 as shown in Figure 2 is created at the top of the particle mass 1.
  • FIG 2 the particle mass 1 with the moisturized volumes 6, 7 and 8 after the injection of the liquid through the needles 3 is shown in cross section.
  • the wave structure can either only be provided in one direction, or the wave-like structure can be provided in two directions, that is additionally in the plain perpendicular to the section shown in Figure 2 , such that a 3D wave structure is provided in the particle mass 1.
  • the particle mass 1 After the particle mass 1 has been processed by means of injecting the liquid through the needles 3, the particle mass 1 provided in the state as shown in Figure 2 to a press, which applies pressure to the particle mass 1 in the vertical direction from both sides and compresses the particles. Additionally, heat may be provided to the particle mass to further activate the glue and resin comprised therein.
  • the particles of the particle mass will have a lower resistance to compression and will thus be compressed more than the particles in the areas where no liquid has been provided. Thus, the moisturized volume will form a volume of higher density in the pressed particle board.
  • a high frequency source in particular a microwave source, can be provided to apply microwave radiation to the particle mass 1 after the injection of liquid and before the further processing with the press.
  • the liquid comprises water
  • the water molecules will be excited by the microwave radiation, and thus the particle mass will be locally heated, which further facilitates the absorption of water in the particles and thus allows obtaining an even higher compressibility of the particles in the moisturized volume.
  • the particle mass can be subjected to another form of high frequency source, i.e. an ultra-sound source, generating ultra-sound vibration to improve the distribution and absorption of the liquid. Further, the compression properties of the particle mass will be improved due to local relative movement of the particles due to the vibration such that a higher compression ratio during the pressing process can be obtained.
  • an ultra-sound source i.e. an ultra-sound source
  • the locally injected liquid it is crucial for the locally injected liquid to comprise the surface tension reducing component in addition to water to facilitate the distribution of the liquid within the particle mass, as otherwise the distribution and absorption of the liquid in the particle mass close to the opening of the needle would not be obtained in a time sufficient for the processing of a particle board at high speed.
  • the absorption of water comprising a small fraction of detergent takes only a fraction of a second when applied to a wood particle, while it may take up to 30 minutes for water only to be absorbed by a wood particle. This applies for all embodiments.
  • the opening 5 according to Figure 3a is provided slightly above the tip and at one side of the needle 3, only. It is supplied with the liquid through the channel 4.
  • the needle is provided with a channel 4 which splits at its downstream end into several channels to supply an opening 5 which is circumferentially open to all sides of the needle 3.
  • the opening 5 is arranged slightly above the tip of the needle 3.
  • FIG 4 a second embodiment of the apparatus according to the invention is shown, with respect to which the apparatus and method according to the invention will be further explained.
  • a particle mass 1 will be transported in the conveyance direction D on a conveyance means 2, such as a belt.
  • the needles 3 according to the second embodiment of the invention are inserted at an inclined angle into the particle mass 1 in the insertion direction I .
  • the inclined angle for insertion is usually 20-70 degrees with respect to the horizontal plain.
  • a moisturized volume 9 along the retraction path of the needle 3 is provided by means of distribution and absorption of the liquid within the particle mass 1 facilitated by the surface tension reducing component comprised in the injected water.
  • the same or other needles are inserted in the opposite inclination, such that moisturized areas 10 are provided, which connect the moisturized areas 9.
  • a zigzag structure or a wave like structure in the particle mass is provided as shown in Figure 5 .
  • the particle mass 1 in Figure 5 may optionally be sprayed with the liquid according to the invention at its upper and lower side before being pressed such as to enable a higher density in the upper and lower surfaces of the particle mass.
  • further processing by injecting liquids through needles may be carried out to obtain moisturized volumes 6 and 8 as shown in Figure 2 near the upper and lower surface of the particle board.
  • FIG 6 a third embodiment of an apparatus according to the invention is shown, in accordance with which the method according to the invention will be further explained.
  • several horizontal needles 11 are provided, which comprise an opening for injecting liquid at least at their tip 12.
  • the particle mass 1 is transported on a conveyance means 2 in the conveyance direction D.
  • the particles are poured from a container from above onto the conveyance means 2.
  • fixation means 12 In this area, before the needles 3 extend into the particle mass 1, the needles 11 are fixed by fixation means 12.
  • the needles 11 are relatively long and thin and extend in the horizontal direction, it may be necessary to provide further supporting means to maintain the correct position of the needles 11 in the particle mass 1.
  • a magnet 13 may be provided at each needle 11, or at least at the longest needle 11 as shown in Figure 6 .
  • the needles 11 can be supported in the vertical direction.
  • a controlled variation of the electromagnetic field allows a controlled movement of the needles 11, such that a variety of injection patterns, that is shapes of moisturized volumes, can be provided in the particle mass 1.
  • Further needles are provided in parallel to the needles 11 shown in Fig. 6 along the width of the particle mass 1.
  • Fig. 6 can be modified to comprise only one needle instead of several needles arranged above each other.
  • a fourth embodiment is shown, wherein a plurality of needles 3 is fixed on a holder 14 and moved together with same with respect to the particle mass 1.
  • the plurality of needles may comprise 5 to 5000 needles 3. It can be seen that the needles 3 are arranged along the whole width of the holder 14 in the direction perpendicular to the conveyance direction D of the particle mass 1. All needles 3 will be lowered together into the particle mass 1, wherein individual sets of needles are provided with a common liquid supply to their channel. By activation of the liquid supply to some of the needles at certain defined times, a defined pattern of moisturized volumes can be obtained in the particle mass 1 as shown in Figure 8 .
  • the holder 14 does not only carry out a vertical motion, but also a horizontal motion which is synchronized with the conveyance speed of the conveyance means 2.
  • the holder 14 carries out a substantially elliptical motion, at least while the needles 3 are inserted in the particle mass 1.
  • the holder 14 carries out a retraction motion in the direction opposite to the conveyance direction D when the needles 3 are retracted from the particle mass 1, wherein the retraction motion may as well be linear in contrast to Figure 8 .
  • FIG 9 a further embodiment is shown, wherein the injection of liquid is carried out by means of a blade 15.
  • the blade 15 In the blade 15, several channels 16 are provided, which terminate at several discrete openings 17.
  • the blade 15 is mounted by means of a hinge 18, a rotation around which allows inserting the blade 15 into the particle mass 1.
  • the blade 15 generally has a crescent shape, the cutting edge being provided on the concave edge.
  • the hinge 18 may either be provided stationary or may be provided on the conveyance means 2, such that the blade 15 moves along together with the conveyance means 2.
  • the openings are provided at the downstream edge of the blade opposite to the cutting edge.
  • the openings may as well be provided at the cutting edge of the blade.
  • the openings 17 may be provided at the flat sides of the blade 15.
  • the blade 15 may as well be oriented in the opposite direction, wherein the cutting edge of the blade 15 is provided at the convex side of the crescent shaped blade 15.
  • Several blades 15 may be provided in parallel and/or subsequently.
  • straight blades may be used.
  • FIG 10 another embodiment regarding the use of blades 15 as injection means is shown.
  • the particle mass 1 moves on a conveyance means 2 in the conveyance direction D, while a wheel 19 rotates in a rotation direction R around an axis perpendicular to the conveyance direction at a speed which keeps the blades 15 substantially synchronized with the speed of the particle mass 1 such that a smooth insertion of the blades 15 into the particle mass 1 is possible.
  • the liquid is introduced through the openings 17 of the blades 15 at defined times, such that a defined distribution of liquid in the particle mass 1 can be obtained.
  • the insertion of the liquid may be obtained by means of nozzles which are provided close to the particle mass. Then, by means of pressure, the liquid is injected into preformed slim holes in the particle mass, which are preferably formed by needles. In other embodiments, the insertion of the liquid may be obtained by shooting liquid at high pressure into the particle mass.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP11001184A 2011-02-14 2011-02-14 Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis Withdrawn EP2487016A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11001184A EP2487016A1 (de) 2011-02-14 2011-02-14 Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11001184A EP2487016A1 (de) 2011-02-14 2011-02-14 Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis

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EP2487016A1 true EP2487016A1 (de) 2012-08-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2789438A1 (de) * 2013-04-08 2014-10-15 Basf Se Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis mit geneigter Einspritzung einer Veränderungssubstanz
EP3470192A1 (de) 2017-10-16 2019-04-17 SWISS KRONO Tec AG Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte
EP3470191A1 (de) * 2017-10-16 2019-04-17 SWISS KRONO Tec AG Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte
RU2778083C2 (ru) * 2017-10-16 2022-08-15 СВИСС КРОНО Тек АГ Способ и устройство для изготовления древесно-стужечной плиты

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127321A (en) * 1965-01-27 1968-09-18 Bakelite Xylonite Ltd Improvements in or relating to faced hardboard
CH551276A (de) * 1971-05-13 1974-07-15 Harder Paul Verfahren zum lokalen verfestigen von spanholzplatten und vorrichtung zur durchfuehrung dieses verfahrens.
US4221950A (en) * 1977-05-17 1980-09-09 Bison-Werke, Bahre and Greten GmbH & Co. KG Method and apparatus suitable for heating relatively poorly conducting substances
JPS5749550A (en) * 1980-09-11 1982-03-23 Daiken Trade & Ind Co Ltd Manufacture of fibrous plate with embossed pattern
JPS63303703A (ja) * 1987-06-03 1988-12-12 Dai Ichi Kogyo Seiyaku Co Ltd 可撓性シ−トまたは成形品の製法
WO1992005021A1 (en) * 1990-09-21 1992-04-02 Djernaes Svend Erik A method and a system for manifacturing a rigid plate material of straw or a similar material
DE19840818A1 (de) * 1998-09-07 2000-03-09 Kvaerner Panel Sys Gmbh Verfahren und Vorrichtung zur Herstellung von Formkörpern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127321A (en) * 1965-01-27 1968-09-18 Bakelite Xylonite Ltd Improvements in or relating to faced hardboard
CH551276A (de) * 1971-05-13 1974-07-15 Harder Paul Verfahren zum lokalen verfestigen von spanholzplatten und vorrichtung zur durchfuehrung dieses verfahrens.
US4221950A (en) * 1977-05-17 1980-09-09 Bison-Werke, Bahre and Greten GmbH & Co. KG Method and apparatus suitable for heating relatively poorly conducting substances
JPS5749550A (en) * 1980-09-11 1982-03-23 Daiken Trade & Ind Co Ltd Manufacture of fibrous plate with embossed pattern
JPS63303703A (ja) * 1987-06-03 1988-12-12 Dai Ichi Kogyo Seiyaku Co Ltd 可撓性シ−トまたは成形品の製法
WO1992005021A1 (en) * 1990-09-21 1992-04-02 Djernaes Svend Erik A method and a system for manifacturing a rigid plate material of straw or a similar material
DE19840818A1 (de) * 1998-09-07 2000-03-09 Kvaerner Panel Sys Gmbh Verfahren und Vorrichtung zur Herstellung von Formkörpern

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2789438A1 (de) * 2013-04-08 2014-10-15 Basf Se Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis mit geneigter Einspritzung einer Veränderungssubstanz
WO2014166840A1 (en) * 2013-04-08 2014-10-16 Basf Se Method and apparatus for the production of a particle based element with inclined injection of a modification substance
EP3470192A1 (de) 2017-10-16 2019-04-17 SWISS KRONO Tec AG Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte
EP3470191A1 (de) * 2017-10-16 2019-04-17 SWISS KRONO Tec AG Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte
WO2019076545A1 (de) 2017-10-16 2019-04-25 SWISS KRONO Tec AG Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte
WO2019076556A1 (de) * 2017-10-16 2019-04-25 SWISS KRONO Tec AG Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte
CN111225778A (zh) * 2017-10-16 2020-06-02 瑞士克罗诺泰克股份公司 用于制造木质复合材料板的方法以及装置
CN111225777A (zh) * 2017-10-16 2020-06-02 瑞士克罗诺泰克股份公司 用于制造木质复合材料板的方法以及装置
RU2765816C2 (ru) * 2017-10-16 2022-02-03 СВИСС КРОНО Тек АГ Способ и устройство для изготовления плиты на основе древесного материала
RU2778083C2 (ru) * 2017-10-16 2022-08-15 СВИСС КРОНО Тек АГ Способ и устройство для изготовления древесно-стужечной плиты
CN111225777B (zh) * 2017-10-16 2022-09-16 瑞士克罗诺泰克股份公司 用于制造木质复合材料板的方法以及装置

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