WO2019076556A1 - Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte - Google Patents
Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte Download PDFInfo
- Publication number
- WO2019076556A1 WO2019076556A1 PCT/EP2018/075027 EP2018075027W WO2019076556A1 WO 2019076556 A1 WO2019076556 A1 WO 2019076556A1 EP 2018075027 W EP2018075027 W EP 2018075027W WO 2019076556 A1 WO2019076556 A1 WO 2019076556A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wood
- adhesive
- particle cake
- wood particles
- particles
- Prior art date
Links
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
- B27N1/00—Pretreatment of moulding material
-
- 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
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
-
- 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
- B27N3/146—Controlling mat weight distribution
-
- 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
- B27N1/00—Pretreatment of moulding material
- B27N1/006—Pretreatment of moulding material for increasing resistance to swelling by humidity
-
- 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
- B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
-
- 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
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- 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
- B27N9/00—Arrangements for fireproofing
Definitions
- the invention relates to a method for producing a wood-based panel, the method comprising the following steps: (a) spreading a plurality of wood particles into a particle cake, (b) applying adhesive to at least some of the wood particles during spreading and / or before spreading, (c) pressing the particle cake under increased pressure and elevated temperature.
- the invention also relates to an apparatus for carrying out such a method.
- Wood-based panels are used in a wide variety of technological areas. For example, they are used for floors, wall coverings, furniture or in structural timber construction.
- Wood materials and in particular wood-based panels have a core of wood particles and usually some glue.
- wood particles in particular wood strands wood chips and wood fibers are used. They are usually pressed in a continuous or in a clocked process under the action of heat and pressure, the so-called hot pressing, to plates or at least to the core.
- wood-based panels must be able to withstand a wide variety of loads and stresses and meet these requirements. This applies, for example, to point loads or surface loads, for example when the panels are used as furniture panels, doors or floor elements.
- wood-based panels are made in such a way that they have uniform and as constant as possible properties over the entire size of the panel, such as bulk density or resistance to shock loads or deflections.
- the bulk density is the ratio between mass and volume of the wood-based panel and is, inter alia, a parameter for the strength of a wood-based panel. The higher the bulk density, the greater is generally the strength of a wood-based panel.
- Today's wood-based panels have, for example, a density of 620 kg / m 3 to 650 kg / m 3 in particleboard, 600 kg / m 3 to 650 kg / m 3 in OSB and 700 kg / m 3 in MDF.
- wood-based panels must withstand very different loads. For example, when used as a furniture panel or door panel, these loads are not constant over the entire surface of the wood-based panel. In the field of fishing, a door leaf must withstand significantly higher loads than in the remaining area of the door leaf. The same applies to cabinet doors or shelves, in which very high loads are to be expected, especially in the area of small contact surfaces.
- EP 2 623 282 A1 describes a method for impregnating material panels, in which an impregnating medium is introduced into an already pressed wood-based panel. So the edge areas are to be impregnated and in the middle layers no impregnation medium can be used.
- the object of the present invention is to provide a method for producing a wood-based panel which has a different density in different areas, wherein the method is less expensive and further reduces manufacturing costs.
- the invention achieves the object by a method according to the preamble of claim 1, which is characterized in that an amount of adhesive which is applied to the wood particles varies depending on their expected position in the particle cake.
- the amount of adhesive can be reduced, which for example reduces the emission of volatile adhesive constituents, and on the other hand, the bulk density in these areas can be further reduced, without the scattered amount of particles must be reduced.
- the amount of adhesive applied varies depending on the expected position of the particles to be glued with the adhesive. It can thus vary along the thickness of the wood-based panel and / or in a plane parallel to the surface of the wood-based panel.
- the wood particles are only provided during spreading with an adhesive.
- the particles leave a scattering device or a conveyor and are glued in falling by spraying the adhesive through at least one gluing nozzle onto the falling particles.
- the amount of adhesive applied is varied depending on the expected position within the particle cake. In the course of the production process of such a particle cake, therefore, the amount of adhesive discharged by the at least one Beleimdüsen also varies. This can be achieved by changing the application rate of at least one nozzle and / or by changing the number of spray nozzles.
- some, in particular all wood particles are pre-glued prior to sprinkling with a preferably constant amount of adhesive.
- the pre-glued wood particles are then scattered to a particle cake.
- additional adhesive in varying amount applied to all or just a few wood particles.
- the already pre-glued and / or unembellished wood particles are conducted past, for example, in a stream of air at the at least one Beleimdüse, which apply, for example programmatically different amounts of adhesive.
- the adhesives used are, in particular, urea-formaldehyde resins, melamine or phenolic resins.
- they are isocyanates, such as polymeric diphenylmethane diisocyanate (PMDI), which is in particular formaldehyde-free.
- PMDI polymeric diphenylmethane diisocyanate
- the additives may be primers, for example based on silanes or other adhesion promoters.
- these improve the adhesion of different glue systems or different layers to one another.
- substances which form an intermediate layer in themselves and thus mixtures of individual others Avoid layers. For example, it can be prevented or made more difficult for chipboard particles that relatively thin outer layers migrate into a coarser middle layer.
- additives In addition to or instead of the introduction of additives, it is also possible to enter energy, for example in the form of heat or radiation energy. As a result, for example, adhesive reactions of multicomponent adhesives or reactions of or with additives can be specifically triggered or influenced. Furthermore, it is possible to introduce moisture, for example by treatment with steam, in the particle cake.
- different amounts of additives are introduced at different positions within the particle cake.
- the legged properties can be developed in different areas, or can develop or vary to different degrees.
- different additives and / or different amounts of different additives are introduced to different positions within the particle cake.
- the one or more additives are introduced in particular via separate introduction devices, such as nozzles. This happens in particular not only during the scattering, but can also happen if no wood particles are scattered.
- At least one additive is preferably a further adhesive or an adhesive component.
- the application of adhesive also means, for example, the application of one or more adhesive components, it being possible for this to occur in varying amounts or for other adhesive components to be applied in varying amounts.
- an amount of wood particles scattered to the particle cake is varied depending on their expected position in the particle cake. This makes it possible, in particular, by choosing different Large scattered amounts of wood particles, further influence on the bulk density within the particle cake and thus in particular to take the strength.
- the invention also achieves the object by a device for carrying out a method described here, which has an electrical control which is set up to vary an amount of adhesive to be applied to the wood particles as a function of their expected position in the particle cake.
- the electrical control preferably has an electronic data processing device which is set up to access information stored in an electronic data memory and to vary the quantity of adhesive to be applied on the basis of this information. This can be done by controlling one of the at least one nozzle supplied amount of adhesive and / or can be achieved by opening and closing of nozzles.
- the expected position of the wood particles in the particle cake is preferably calculated on the basis of the position of the corresponding scattering nozzle, in particular with respect to the particle cake to be scattered, which scatters the wood particles.
- a transport speed of the conveyor belt is preferably included.
- the electrical control is arranged to vary the amount of wood particles depending on their expected position in the particulate cake.
- a chipboard was made without the intermediate layers of glue. Both plates were then coated in a short-cycle press with a white decorative paper impregnated with a melamine resin. The paper weight was 65 g / m 2 . The plates were then visually inspected in cross-section. It showed that the chipboard with the glue between the layers had a much more symmetrical structure. In particular, between the upper cover layer and the middle layer significantly less surface layer migration was observed in the middle layer than in the comparison plate. When processing the two plates on a router, the plate without glue additive showed more edge breakouts and a messier milling than the test plate.
- Figure 1 is a perspective and schematic sectional view of a obtainable according to an embodiment of the manufacturing method of the invention wood-based panel
- Figure 2 is a schematic flow diagram of the manufacturing process.
- Figure 1 is a perspective sectional view of a wood-based panel 2, as it is available according to an embodiment of the manufacturing method according to the invention.
- a wood-based panel has an extension in the x, y and z directions. In the case of the x-direction, this is the extent of the wood-based panel transverse to the longitudinal direction y. The height or thickness of the wood-based panel extends in the z-direction.
- the areas 4.1 are areas with a larger amount of glue.
- the areas 4.2 are adhesive areas.
- Wood material board here in particular a wood fiber board.
- wood 10 is initially provided. This is preferably forest wood or residual wood, which in particular has been previously debarked. This is processed in a crushing device 12, for example a disc or drum chipper, to wood chips. These chips are fed to a digester 14. In this, the wood chips, possibly with the previous preheating of the wood chips, processed under the action of superheated steam and cleaned. For example, the chips are digested at a temperature of about 170 ° for about 3-4 minutes.
- the digestion in the cooker 14 is followed, in particular when it is a fibreboard, by a pulping of the woodchips in the refiner 16.
- the chips are ground, for example in a disc, cylinder or cone mill and processed into wood fibers.
- the especially still wet wood fibers are pre-glued with an adhesive such as urea-formaldehyde resin (UF resins) in a pre-gluing.
- an adhesive such as urea-formaldehyde resin (UF resins) in a pre-gluing.
- the wood fibers Here, before or after, separated for the later scattering heads over which they are scattered in a later scattering device 24.
- This has the advantage that the amount of adhesive to be applied later by means of the glue nozzles, which may also be zero, can be set particularly easily in dependence on an expected position of the wood fiber.
- the glued wood fibers are then dried in a dryer 20,
- hot gas which for example has a temperature of about 160 °, dried to a certain residual moisture of, for example, 10-15%.
- Fiber sizes are sorted out. Too large fibers can in this case in particular be added to the comminution process again; too small fibers or pulverized wood particles can be removed from the further process.
- the sighting is carried out before the wood fibers are added.
- the wood fibers are fed to the scattering device 24, which in particular has a plurality, for example at least three
- Moving direction can be moved. Are transverse to this transport direction
- the Beleimkexcellent 26 are connected to an electrical controller 28 which is adapted to be applied to the wood particles amount of adhesive in Depending on their position in the particle cake, for example, in a plane parallel to the longitudinal direction and the transverse direction to adjust level.
- each Beleimkopf 26 a continuous and constant amount of wood particles is scattered, which optionally differs between the individual Beleimköpfen 26. It is also possible, for example, for a Beleimkopfes 26 more spaced apart Beleimdüsen transverse to the transport direction 26 eject larger amounts of adhesive per unit time than other Beleimdüsen this Beleimkopfes 26th
- the particle cake resulting from the scattering is precompressed in one or more precompression steps in a supercharger 30. This can be done, for example, continuously or discontinuously, that is, in several separate steps.
- a hot press 32 by means of which the wood-based panel 2 is formed from the precompacted particle cake under the action of temperature and pressure.
- a large-format high density (HDF) or medium density (MDF) wood fiber board is produced.
- Wood material board 2 are generated in the transverse direction to the transport direction. These large-format plates are further processed in particular by sawing in the transverse and / or longitudinal direction to a plurality of smaller plates.
Landscapes
- 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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2018353291A AU2018353291A1 (en) | 2017-10-16 | 2018-09-17 | Method and device for producing a composite wood board |
US16/640,848 US20210268685A1 (en) | 2017-10-16 | 2018-09-17 | Method and device for producing a composite wood board |
RU2020111586A RU2778083C2 (ru) | 2017-10-16 | 2018-09-17 | Способ и устройство для изготовления древесно-стужечной плиты |
CN201880067193.9A CN111225778B (zh) | 2017-10-16 | 2018-09-17 | 用于制造木质复合材料板的方法以及装置 |
JP2020512804A JP2020536763A (ja) | 2017-10-16 | 2018-09-17 | 複合木材板を製造するための方法及び装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17196573.4 | 2017-10-16 | ||
EP17196573.4A EP3470191B1 (de) | 2017-10-16 | 2017-10-16 | Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019076556A1 true WO2019076556A1 (de) | 2019-04-25 |
Family
ID=60119890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/075027 WO2019076556A1 (de) | 2017-10-16 | 2018-09-17 | Verfahren und vorrichtung zum herstellen einer holzwerkstoffplatte |
Country Status (9)
Country | Link |
---|---|
US (1) | US20210268685A1 (de) |
EP (1) | EP3470191B1 (de) |
JP (1) | JP2020536763A (de) |
CN (1) | CN111225778B (de) |
AU (1) | AU2018353291A1 (de) |
ES (1) | ES2779858T3 (de) |
PL (1) | PL3470191T3 (de) |
PT (1) | PT3470191T (de) |
WO (1) | WO2019076556A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4378650A1 (de) * | 2022-12-02 | 2024-06-05 | SWISS KRONO Tec AG | Verfahren zum herstellen von osb und osb-herstellvorrichtung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005046950A1 (en) | 2003-11-13 | 2005-05-26 | Swedwood International Ab | Particle board |
EP2487016A1 (de) * | 2011-02-14 | 2012-08-15 | Dascanova GmbH | Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis |
EP2623282A1 (de) | 2012-01-31 | 2013-08-07 | Falquon GmbH | Verfahren zum Imprägnieren von Werkstoffplatten |
EP2653279A1 (de) | 2012-04-18 | 2013-10-23 | Swedspan International s.r.o. | Verfahren und Vorrichtung zum Herstellen von Teilchentafeln mit nicht gleichförmiger Dichteverteilung |
EP3189951A1 (de) * | 2015-12-18 | 2017-07-12 | SWISS KRONO Tec AG | Verfahren zum herstellen einer holzwerkstoffplatte und holzwerkstoffplatten-herstellvorrichtung |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2894185B2 (ja) * | 1993-07-14 | 1999-05-24 | ヤマハ株式会社 | 木質板及び床材 |
JPH0976212A (ja) * | 1995-09-19 | 1997-03-25 | Dantani Plywood Co Ltd | パーティクルボードの製造方法 |
CN1457965A (zh) * | 2002-05-16 | 2003-11-26 | 刘海通 | 仿生强化板材的加工方法 |
US7258761B2 (en) * | 2004-11-12 | 2007-08-21 | Huber Engineered Woods Llc | Multi-step preheating processes for manufacturing wood based composites |
CN100371152C (zh) * | 2005-01-26 | 2008-02-27 | 东北林业大学 | 人造板模糊自适应并行在线调施胶控制方法及控制系统 |
US20070222100A1 (en) * | 2006-03-21 | 2007-09-27 | Huber Engineered Woods L.L.C. | Method and system using NIR spectroscopy for in-line monitoring and controlling content in continuous production of engineered wood products |
CN101077587A (zh) * | 2007-06-08 | 2007-11-28 | 王春鸣 | 干施胶纤维板及其制备方法 |
CN101524866A (zh) * | 2008-03-31 | 2009-09-09 | 赵东 | 秸秆/木重组材的制造方法 |
CN101693378A (zh) * | 2009-10-22 | 2010-04-14 | 北京林业大学 | 一种具有防腐功能刨花板及其制备方法 |
WO2012083994A1 (de) * | 2010-12-23 | 2012-06-28 | Kronoplus Technical Ag | Vorrichtung und verfahren zum windsichten und beleimen von holzspänen |
ITMO20110103A1 (it) * | 2011-05-06 | 2012-11-07 | Imal Srl | Dispositivo e metodo per l'iniezione di un fluido all'interno di un flusso di materiale incoerente. |
BR112018001278B1 (pt) * | 2015-07-23 | 2021-08-10 | 3Rt Holding Pty Ltd | Produto de madeira fabricado e processo de produzir um produto de madeira fabricado |
CN106393383A (zh) * | 2015-08-03 | 2017-02-15 | 万华生态板业股份有限公司 | 一种利用无醛胶生产刨花板材的生产方法 |
CN105583937A (zh) * | 2015-12-10 | 2016-05-18 | 万华生态板业股份有限公司 | 一种采用果树枝和无醛胶生产无醛果香刨花板的生产方法 |
CN107020673B (zh) * | 2017-05-25 | 2019-02-01 | 河池学院 | 一种板材拼缝机 |
-
2017
- 2017-10-16 PT PT171965734T patent/PT3470191T/pt unknown
- 2017-10-16 PL PL17196573T patent/PL3470191T3/pl unknown
- 2017-10-16 ES ES17196573T patent/ES2779858T3/es active Active
- 2017-10-16 EP EP17196573.4A patent/EP3470191B1/de active Active
-
2018
- 2018-09-17 AU AU2018353291A patent/AU2018353291A1/en not_active Abandoned
- 2018-09-17 CN CN201880067193.9A patent/CN111225778B/zh active Active
- 2018-09-17 US US16/640,848 patent/US20210268685A1/en not_active Abandoned
- 2018-09-17 JP JP2020512804A patent/JP2020536763A/ja not_active Ceased
- 2018-09-17 WO PCT/EP2018/075027 patent/WO2019076556A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005046950A1 (en) | 2003-11-13 | 2005-05-26 | Swedwood International Ab | Particle board |
EP2487016A1 (de) * | 2011-02-14 | 2012-08-15 | Dascanova GmbH | Verfahren und Vorrichtung zur Herstellung eines Elements auf Teilchenbasis |
EP2623282A1 (de) | 2012-01-31 | 2013-08-07 | Falquon GmbH | Verfahren zum Imprägnieren von Werkstoffplatten |
EP2653279A1 (de) | 2012-04-18 | 2013-10-23 | Swedspan International s.r.o. | Verfahren und Vorrichtung zum Herstellen von Teilchentafeln mit nicht gleichförmiger Dichteverteilung |
EP3189951A1 (de) * | 2015-12-18 | 2017-07-12 | SWISS KRONO Tec AG | Verfahren zum herstellen einer holzwerkstoffplatte und holzwerkstoffplatten-herstellvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
PL3470191T3 (pl) | 2020-07-13 |
RU2020111586A (ru) | 2021-11-19 |
CN111225778B (zh) | 2023-03-31 |
CN111225778A (zh) | 2020-06-02 |
EP3470191A1 (de) | 2019-04-17 |
AU2018353291A1 (en) | 2020-03-12 |
US20210268685A1 (en) | 2021-09-02 |
JP2020536763A (ja) | 2020-12-17 |
ES2779858T3 (es) | 2020-08-20 |
EP3470191B1 (de) | 2020-02-26 |
RU2020111586A3 (de) | 2022-01-18 |
PT3470191T (pt) | 2020-05-06 |
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