EP2319671B1 - Procédé de fabrication d'un panneau OSB - Google Patents

Procédé de fabrication d'un panneau OSB Download PDF

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Publication number
EP2319671B1
EP2319671B1 EP09013890.0A EP09013890A EP2319671B1 EP 2319671 B1 EP2319671 B1 EP 2319671B1 EP 09013890 A EP09013890 A EP 09013890A EP 2319671 B1 EP2319671 B1 EP 2319671B1
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EP
European Patent Office
Prior art keywords
wood
layer
panel
formaldehyde
shavings
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.)
Active
Application number
EP09013890.0A
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German (de)
English (en)
Other versions
EP2319671A1 (fr
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.)
Kronotec AG
Original Assignee
Kronotec AG
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Publication date
Application filed by Kronotec AG filed Critical Kronotec AG
Priority to PL09013890T priority Critical patent/PL2319671T3/pl
Priority to EP09013890.0A priority patent/EP2319671B1/fr
Priority to ES09013890.0T priority patent/ES2469792T3/es
Publication of EP2319671A1 publication Critical patent/EP2319671A1/fr
Application granted granted Critical
Publication of EP2319671B1 publication Critical patent/EP2319671B1/fr
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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
    • 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
    • B27N3/06—Making particle boards or fibreboards, with preformed covering layers, the particles or fibres being compressed with the layers to a board in one single pressing operation

Definitions

  • the invention relates to a method according to claim 1 for the preparation of an existing from scattered wood shavings OSB board in the usual continuous or discontinuous process.
  • a method for producing a reinforced wood-based panel is known, are used in the preimpregnated plates, so-called prepregs, of synthetic fiber material, such as glass fiber or carbon fiber. These pepregs cover the scattered fiber cake as the lower and upper cover layer and are then pressed together with the cake to a wood-based material plate of desired thickness.
  • the layers are all made of resin-coated strands.
  • the resin coated strands are provided separately, the strands of the lower cover layer laid down in a first orientation substantially longitudinal to the plate main direction, the strands of the middle layer deposited in a second orientation substantially transverse to the plate main direction on the lower cover layer, and the strands of the upper cover layer are deposited in the first orientation on the middle layer and then pressed this layer structure under increased pressure and elevated temperature.
  • Wood-based panels are very high-quality products, but subject to specific limitations, with the mechanical Properties, such. B. flexural strength, modulus and transverse tensile strength are meant. If wood-based panels are used as structural panels, another significant disadvantage is their increased flammability due to the lignocellulosic material used. Especially in the construction sector, there is an increasing demand for wood-based panels, which have high strength properties at comparatively low plate thickness, so that they are easy to handle due to their low weight.
  • the upper and / or lower cover layer may also have at least one fabric layer.
  • the fabric layer can z. B. be applied in the form of a fabric mat, whereby the bending properties of an OSB board are increased.
  • a fiber reinforced board having a reinforcing layer of glass fiber material or the like disposed on a core layer of wood or wood material is known.
  • This reinforcing layer is located on both sides in a bonding layer of plastic shrinking during curing, such as polyester resin.
  • the outer bonding layer applied to the reinforcing layer is covered by a protective layer of plastic film.
  • the protective film should prevent the fiber material from coming out when it is weathered.
  • a reinforced molding of a compressed mixture of comminuted, finely divided lignocellulosic particles and binder is known in which a plurality of continuous, endless, long reinforcing threads is embedded.
  • the reinforcing threads have a tensile strength and elasticity that is substantially greater than the tensile strength and elasticity of the bonded mixture.
  • the reinforcing threads are arranged largely straight in a predetermined direction and parallel to each other in the lateral distance.
  • the reinforcing filaments have a length to extend continuously in the predetermined direction from one side to the opposite side of the molded article, and they are bonded to the lignocellulosic particles over substantially the entire length thereof via the binder.
  • the material for the reinforcing threads are glass fibers or steel wires into consideration, since they adhere well to the binders and are inexpensive to procure.
  • From the DE 41 10 640 is a molded body known, which may consist of two preferably plate-shaped wood materials, which is covered at the top and bottom with a cover layer of glass or Siliziumkarbitmaschinen. This fiber layer is full-surface and should improve the load capacity of the molding.
  • the present invention seeks to provide a Vefahren with which the OSB plate explained above is improved so that not only their mechanical and technological properties increase significantly, but also their properties are improved in case of fire.
  • the generic method is characterized in that initially glued in a gluing device glass fibers or rock wool fibers with a powdered or a sprayed liquid adhesive and then as an additional upper or lower cover layer for the plate be sprinkled and then pressed with the scattered wood chips.
  • the production is significantly simplified because the manufacturing process can be done in a single operation and no separately produced cover layers must be used, which require additional handling effort. Because the fibers are contained only in the outer layer or layers, the weight of the wood-based panel is kept low. At the same time, however, a stiffening and in particular an increase in the tensile strength is provided in the area in which the highest load occurs when the wood-based panel is used as a building board. By incorporating non-flammable fibers into the panel structure, the flammability of the wood-based panel is significantly reduced or its fire resistance significantly increased.
  • Phenol-formaldehyde resoles or phenol-formaldehyde novolaks are preferably used to compound the glass fibers or rock wool fibers with the lignocellulose-containing material.
  • fire and / or flame retardants VOC and formaldehyde scavengers, fungicides and / or termite attack agents can be added to further improve the properties of the board.
  • These additives may be added cumulatively or alternatively.
  • the OSB board 1 is, as in FIG. 3 is shown, from three layers 2, 3, 4 sprinkled from wood chips.
  • the upper cover layer 5 and the lower cover layer 6 are made of glass fibers or rock wool fibers, which were scattered and then pressed with the scattered layers 2, 3, 4.
  • wood board 1 is a conventional OSB board, on which in a second manufacturing step, the glass fiber or rock wool fiber layer is applied.
  • conventional adhesives can be used, which are also used for the production of the wood-based panel itself.
  • powdery adhesives used for the production of glass fiber insulating materials for example phenol-formaldehyde resoles or phenol-formaldehyde novolaks.
  • the preparation is advantageously carried out in a batch press. For example, a short-cycle press can be used for this purpose.
  • glass fibers or rock wool fibers in the usual continuous or intermittent production process. But it can also be scattered an additional cover layer. Again, the aforementioned adhesives can be used. These must then but separately in a gluing device with the glass fibers or rockwool fibers mixed (powdered adhesives) or injected (liquid adhesives) are. The pressing is then carried out by means of conventional continuous presses or with floor or multi-day presses.

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)
  • Laminated Bodies (AREA)

Claims (3)

  1. Procédé de fabrication d'un panneau OSB composé de copeaux de bois dispersés en procédé usuel continu ou discontinu, dans lequel des fibres de verre ou des fibres de laine de roche sont d'abord mélangées dans un dispositif d'encollage avec un adhésif pulvérulent, ou un adhésif liquide pulvérisé, puis sont dispersées en tant que couche extérieure supplémentaire supérieure et inférieure pour le panneau, et sont ensuite pressées avec les copeaux de bois dispersés.
  2. Procédé selon la revendication 1, caractérisé en ce que la liaison entre les fibres de verre ou les fibres de laine de roche avec les copeaux de bois est effectuée au moyen de Phénol-Formaldéhyde-Résols ou de Phénol-Formaldéhyde-Novolaques.
  3. Procédé selon la revendication 1, caractérisé en ce que des moyens coupe-feu et/ou des moyens pare-flamme, des absorbeurs de COV et de formaldéhyde, des fongicides et/ou des moyens contre l'infestation des termites sont ajoutés.
EP09013890.0A 2009-11-05 2009-11-05 Procédé de fabrication d'un panneau OSB Active EP2319671B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL09013890T PL2319671T3 (pl) 2009-11-05 2009-11-05 Sposób wytwarzania płyt OSB
EP09013890.0A EP2319671B1 (fr) 2009-11-05 2009-11-05 Procédé de fabrication d'un panneau OSB
ES09013890.0T ES2469792T3 (es) 2009-11-05 2009-11-05 Procedimiento para fabricar una placa OSB

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09013890.0A EP2319671B1 (fr) 2009-11-05 2009-11-05 Procédé de fabrication d'un panneau OSB

Publications (2)

Publication Number Publication Date
EP2319671A1 EP2319671A1 (fr) 2011-05-11
EP2319671B1 true EP2319671B1 (fr) 2014-03-26

Family

ID=41667208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013890.0A Active EP2319671B1 (fr) 2009-11-05 2009-11-05 Procédé de fabrication d'un panneau OSB

Country Status (3)

Country Link
EP (1) EP2319671B1 (fr)
ES (1) ES2469792T3 (fr)
PL (1) PL2319671T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013101937A1 (de) * 2013-02-27 2014-08-28 Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts Holz- und Verbundwerkstoffplatte

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080148677A1 (en) * 2006-12-20 2008-06-26 Huber Engineered Woods Llc Reinforced Wood Panel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB485588A (en) 1936-11-20 1938-05-20 Felix Pfohl Improvements in and relating to the manufacture of sheets for cabinet and joiner's work
DE1945779A1 (de) 1968-09-10 1970-04-02 Ibus Werke Gmbh Faserverstaerkte Platte sowie Verfahren und Vorrichtung zu deren endlosen Herstellung
US4058580A (en) 1974-12-02 1977-11-15 Flanders Robert D Process for making a reinforced board from lignocellulosic particles
DE4110640A1 (de) 1990-04-05 1991-10-10 Richard Pott Formkoerper
JP2001152661A (ja) 1999-11-29 2001-06-05 Shimizu Corp 木チップによる再生型枠
DE102005038833B4 (de) 2005-08-17 2010-06-17 Kronotec Ag OSB-Platte und Verfahren zur Herstellung einer OSB-Platte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080148677A1 (en) * 2006-12-20 2008-06-26 Huber Engineered Woods Llc Reinforced Wood Panel

Also Published As

Publication number Publication date
ES2469792T3 (es) 2014-06-20
EP2319671A1 (fr) 2011-05-11
PL2319671T3 (pl) 2014-08-29

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