EP2319671B1 - Manufacturing method for an OSB-panel - Google Patents

Manufacturing method for an OSB-panel 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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Prior art keywords
wood
layer
panel
formaldehyde
shavings
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EP09013890.0A
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German (de)
French (fr)
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EP2319671A1 (en
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Kronotec AG
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Kronotec AG
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Priority to EP09013890.0A priority Critical patent/EP2319671B1/en
Priority to PL09013890T priority patent/PL2319671T3/en
Priority to ES09013890.0T priority patent/ES2469792T3/en
Publication of EP2319671A1 publication Critical patent/EP2319671A1/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
    • 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.

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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)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft ein Verfahren gemäß Anspruch 1 zur Herstellung einer aus gestreuten Holzspänen bestehenden OSB-Platte im üblich kontinuierlichen oder diskontinuierlichen Prozess.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.

Aus der US 2008/0 148 677 A1 ist ein Verfahren zur Herstellung einer verstärkten Holzwerkstoffplatte bekannt, bei dem vorimpregnierte Platten, sogenannte Prepregs, aus synthetischem Fasermaterial, wie beispielsweise Glasfaser oder Karbonfaser verwendet werden. Diese Pepregs decken als untere und obere Deckschicht den gestreuten Faserkuchen ab und werden dann zusammen mit dem Kuchen zu einer Holzwerkstoffplatte gewünschter Dicke verpresst.From the US 2008/0 148 677 A1 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.

Aus der EP 1 754 583 A1 oder der JP 2001-152661 A ist eine mehrschichtige OSB-Platte bekannt. Bei dieser Platte bestehen die Schichten allesamt aus harzbeleimten Strands. Zur Herstellung werden die mit Harz beleimten Strands separat bereitgestellt, die Strands der unteren Deckschicht in einer ersten Orientierung im Wesentlichen längs zur Plattenhauptrichtung abgelegt, die Strands der Mittelschicht in einer zweiten Orientierung im Wesentlichen quer zur Plattenhauptrichtung auf die untere Deckschicht abgelegt, und die Strands der oberen Deckschicht werden in der ersten Orientierung auf die Mittelschicht abgelegt und dieser Schichtaufbau dann unter erhöhtem Druck und unter erhöhter Temperatur verpresst.From the EP 1 754 583 A1 or the JP 2001-152661 A is a multilayer OSB board known. In this plate, the layers are all made of resin-coated strands. For preparation, 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.

Holzwerkstoffplatten stellen sehr hochwertige Produkte dar, die aber spezifischen Begrenzungen unterworfen sind, wobei in erster Linie die mechanischen Eigenschaften, wie z. B. Biegesteifigkeit, E-Modul und Querzugfestigkeit gemeint sind. Wenn Holzwerkstoffplatten als Bauplatten eingesetzt werden, ist ein weiterer wesentlicher Nachteil ihre erhöhte Brennbarkeit aufgrund des verwendeten lignocellulosehaltigen Materials. Insbesondere im Baubereich besteht ein zunehmender Bedarf an Holzwerkstoffplatten, die bei vergleichsweise geringer Plattenstärke hohe Festigkeitseigenschaften aufweisen, damit sie aufgrund ihres geringen Gewichtes einfach zu handhaben sind.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.

Um die mechanischen Festigkeiten der vorgenannten Holzwerkstoffplatte zu verbessern, ist vorgesehen, Gewebefasern unterschiedlicher Länge, Dicke und Beschaffenheit in die Deckschichten einzubringen. Durch das Einbringen einer definierten Menge von Gewebefasern kann die Zugfestigkeit der Decklagen auf den jeweiligen späteren Verwendungszweck eingestellt werden. Hierzu können die obere und/oder untere Deckschicht auch mindestens eine Gewebelage aufweisen. Die Gewebelage kann z. B. in Form einer Gewebematte aufgebracht werden, wodurch die Biegeeigenschaften einer OSB-Platte erhöht werden.In order to improve the mechanical strength of the aforementioned wood-based panel, it is provided to introduce fabric fibers of different lengths, thickness and texture in the outer layers. By introducing a defined amount of fabric fibers, the tensile strength of the cover layers can be adjusted to the respective later intended use. For this purpose, 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.

Aus der DE 1 945 779 A ist eine faserverstärkte Platte mit auf einer Kernschicht aus Holz oder Holzwerkstoff angeordneter Verstärkungsschicht aus Glasfaserwerkstoff oder dergleichen bekannt. Diese Verstärkungsschicht befindet sich beidseitig in einer Verbindungsschicht aus beim Härten schrumpfendem Kunststoff, wie beispielsweise Polyesterharz. Die äußere auf die Verstärkungsschicht aufgetragene Verbindungsschicht wird von einer Schutzschicht aus Kunststoff-Folie überdeckt. Die Schutzfolie soll ein Heraustreten des Faserwerkstoffes bei Bewitterung vermeiden.From the DE 1 945 779 A For example, 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.

Aus der US 4,058,580 A oder der DE 25 54 212 A1 ist ein verstärktes Formteil aus einem zusammengepressten Gemisch aus zerkleinerten, feinteiligen Lignocellulose-Teilchen und Bindemittel bekannt, in das eine Vielzahl von durchgehenden, endlosen, langen verstärkenden Fäden eingebettet ist. Die verstärkenden Fäden weisen eine Zugfestigkeit und Elastizität auf, die wesentlich größer ist, als die Zugfestigkeit und die Elastizität des gebundenen Gemisches. Die verstärkenden Fäden sind weitgehend gerade in einer vorgegebenen Richtung und parallel im seitlichen Abstand zueinander angeordnet. Die verstärkenden Fäden weisen eine Länge auf, um durchgehend in der vorgegebenen Richtung von einer Seite zur gegenüberliegenden Seite des Formteiles zu reichen, und sie sind im Wesentlichen über ihre gesamte Länge über das Bindemittel an die Lignocellulose-Teilchen gebunden. Als Material für die verstärkenden Fäden kommen Glasfasern oder Stahldrähte in Betracht, da sie gut an den Bindemitteln haften und preiswert zu beschaffen sind.From the US 4,058,580 A or the DE 25 54 212 A1 For example, 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.

Aus der GB 485,588 ist es bekannt, ein Furnierblatt ein- oder beidseitig mit verschiedenen Materialien, wie beispielsweise Holzfasern oder Glasfasern zu beschichten, um das Furnierblatt gegen verschiedene Umwelteinflüsse zu schützen.From the GB 485,588 It is known to coat a veneer sheet on one or both sides with various materials, such as wood fibers or glass fibers, in order to protect the veneer sheet against various environmental influences.

Aus der DE 41 10 640 ist ein Formkörper bekannt, der aus zwei vorzugsweise plattenförmigen Holzwerkstoffen bestehen kann, die an der Oberseite und der Unterseite mit einer Deckschicht aus Glas oder Siliziumkarbitfasern abgedeckt ist. Diese Faserschicht ist vollflächig und soll die Belastungsfähigkeit des Formkörpers verbessern.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 Siliziumkarbitfasern. This fiber layer is full-surface and should improve the load capacity of the molding.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Vefahren anzugeben, mit dem die eingangs erläuterte OSB-Platte dahingehend verbessert wird, dass nicht nur ihre mechanisch-technologischen Eigenschaften deutlich steigen, sondern auch ihre Eigenschaften im Brandfall verbessert werden.On this basis, 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.

Zur Problemlösung zeichnet sich das gattungsgemäße Verfahren dadurch aus, dass in einer Beleimungseinrichtung zunächst Glasfasern oder Steinwollefasern mit einem pulverförmigen oder einem eingedüsten flüssigen Klebstoff vermengt und dann als zusätzliche obere oder untere Deckschicht für die Platte gestreut werden und anschließend mit den gestreuten Holzspänen verpresst werden.To solve the problem, 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.

Dadurch, dass die Glasfasern oder Steinwollefasern zusammen mit den Holzspänen gestreut werden, wird ein besonders guter Verbund der Deckschichten mit der Kernschicht erreicht. Außerdem wird die Herstellung deutlich vereinfacht, weil der Herstellungsprozess in einem Arbeitsgang erfolgen kann und keine separat hergestellten Deckschichten verwendet werden müssen, die zusätzlichen Handlingsaufwand erfordern. Weil die Fasern nur in der oder den Deckschichten enthalten sind, wird das Gewicht der Holzwerkstoffplatte niedrig gehalten. Gleichzeitig wird aber eine Versteifung und insbesondere eine Erhöhung der Zugfestigkeit in dem Bereich zur Verfügung gestellt, in dem die höchste Belastung auftritt, wenn die Holzwerkstoffplatte als Bauplatte eingesetzt wird. Durch die Einbindung nicht brennbarer Fasern in den Plattenaufbau, wird die Brennbarkeit der Holzwerkstoffplatte deutlich reduziert bzw. ihre Feuerbeständigkeit deutlich erhöht.The fact that the glass fibers or rock wool fibers are scattered together with the wood chips, a particularly good bond of the outer layers is achieved with the core layer. In addition, 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.

Zur Verbindung der Glasfasern oder Steinwollefasern mit dem lignocellulosehaltigen Material werden vorzugsweise Phenol-Formaldehyd-Resole oder Phenol-Formaldehyd-Novolake eingesetzt.Phenol-formaldehyde resoles or phenol-formaldehyde novolaks are preferably used to compound the glass fibers or rock wool fibers with the lignocellulose-containing material.

Es können des Weiteren Brand- und/oder Flammschutzmittel, VOC- und Formaldehydfänger, Fungizide und/oder Mittel gegen Termitenbefall zugesetzt werden, um die Eigenschaften der Platte weiter zu verbessern. Diese Zusätze können kumulativ oder alternativ beigemischt sein.Furthermore, 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.

Mit Hilfe einer Zeichnung soll ein Ausführungsbeispiel der Erfindung nachfolgend näher beschrieben werden.With the aid of a drawing, an embodiment of the invention will be described in more detail below.

Es zeigt:

Figur 1 -
die Draufsicht auf eine Holzwerkstoffplatte,
Figur 2 -
die Seitenansicht der Holzwerkstoffplatte nach Figur 1;
Figur 3 -
die Einzelheit gemäß Sichtpfeil III nach Figur 2 in vergrößerter Darstellung;
Figur 4 -
die Draufsicht auf eine weitere Holzwerkstoffplatte;
Figur 5 -
die Seitenansicht der Holzwerkstoffplatte nach Figur 4;
Figur 6 -
die Einzelheit gemäß Sichtpfeil VI nach Figur 5 in vergrößter Darstellung;
Figur 7 -
die schematische einer Darstellung einer Anlage aus der Stand der Technik zur Herstellung einer Holzwerkstoffplatte
It shows:
FIG. 1 -
the top view of a wood-based panel,
FIG. 2 -
the side view of the wood-based panel after FIG. 1 ;
FIG. 3 -
the detail according to arrow III after FIG. 2 in an enlarged view;
FIG. 4 -
the top view of another wood-based panel;
FIG. 5 -
the side view of the wood-based panel after FIG. 4 ;
FIG. 6 -
the detail according to arrow VI after FIG. 5 in an enlarged view;
FIG. 7 -
the schematic representation of a plant of the prior art for the production of a wood-based panel

Die OSB-Platte 1 ist, wie in Figur 3 dargestellt ist, aus drei Schichten 2, 3, 4 aus Holzspäne gestreut. Die obere Deckschicht 5 und die untere Deckschicht 6 bestehen aus Glasfasern oder Steinwollefasern, die aufgestreut und dann mit den gestreuten Schichten 2, 3, 4 verpresst wurden.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.

Die in Figuren 1 bis 3 dargestellte Holzwerkstoffplatte 1 ist eine übliche OSB-Platte, auf die in einem zweiten Herstellungsschritt die Glasfaser oder Steinwollefaserschicht aufgebracht wird. Zur Verbindung können herkömmliche Klebstoffe verwendet werden, die auch zur Herstellung der Holzwerkstoffplatte an sich verwendet werden. Bevorzugt werden pulverförmige Klebstoffe wie sie für die Herstellung von Glasfaserdämmstoffen verwendet werden, beispielsweise Phenol-Formaldehyd-Resole oder Phenol-Formaldehyd-Novolake verwendet. Die Herstellung erfolgt zweckmäßigerweise in einer diskontinuierlichen Presse. Beispielsweise kann hierzu eine Kurztaktpresse Verwendung finden.In the FIGS. 1 to 3 illustrated 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. For connection conventional adhesives can be used, which are also used for the production of the wood-based panel itself. Preference is given to 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.

Es ist ebenso möglich, Glasfasern oder Steinwollefasern im üblichen kontinuierlichen oder diskontinuierlichen Produktionsprozess einzustreuen. Es kann aber auch eine zusätzliche Deckschicht gestreut werden. Auch hier können die bereits vorgenannten Klebstoffe verwendet werden. Diese müssen dann aber separat in einer Beleimungseinrichtung mit den Glasfasern bzw. Steinwollefasern vermengt (pulverförmige Klebstoffe) bzw. eingedüst (flüssige Klebstoffe) werden. Das Verpressen erfolgt dann mittels üblicher kontinuierlich arbeitender Pressen oder mit Etagen- bzw. Mehretagenpressen.It is also possible to use 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.

In einfacher Weise und unter Verwendung zumeist vorhandener Vorrichtungen kann somit eine neue Holzwerkstoffplatte hergestellt werden, die sich durch eine hohe mechanische Stabilität und eine erschwerte Entflammbarkeit der beschichteten Oberfläche auszeichnet. Von besonderer Bedeutung ist, dass die Rohdichte der OSB-Grundplatte übliche Werte und einen üblichen Verlauf aufweist.In a simple manner and using mostly existing devices thus a new wood-based panel can be produced, which is characterized by a high mechanical stability and a difficult flammability of the coated surface. Of particular importance is that the bulk density of the OSB baseplate has common values and a common course.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
HolzwerkstoffplatteWood panel
1a1a
HolzwerkstoffplatteWood panel
22
Schichtlayer
2b2 B
Schichtlayer
33
Schichtlayer
3a3a
Schichtlayer
3b3b
Schichtlayer
44
Schichtlayer
4b4b
Schichtlayer
55
Deckschichttopcoat
5a5a
Deckschichttopcoat
5b5b
Vliesfleece
66
Deckschichttopcoat
6a6a
Deckschichttopcoat
6b6b
Vliesfleece
77
Transportbandconveyor belt
88th
Streueinrichtungscattering device
99
Abrollerdispensers
1010
Abrollerdispensers
1111
PressePress

Claims (3)

  1. A method of manufacturing an OSB panel consisting of spread shavings of wood in the usual continuous or batch process, said method comprising glass fibres or rockwool fibres being initially mixed in a resonator with a pulverulent adhesive or with an injected liquid adhesive, then spread as additional upper and lower outer layer for the panel and subsequently compression moulded together with the spread shavings of wood.
  2. A method according to Claim 1, characterized in that the glass fibres or rockwool fibres are bonded to the shavings of wood using phenol-formaldehyde resoles or phenol-formaldehyde novolaks.
  3. A method according to Claim 1, characterized in that fire and/or flame retardants, VOC and formaldehyde traps, fungicides and/or agents against termite infestation are admixed.
EP09013890.0A 2009-11-05 2009-11-05 Manufacturing method for an OSB-panel Active EP2319671B1 (en)

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Application Number Priority Date Filing Date Title
EP09013890.0A EP2319671B1 (en) 2009-11-05 2009-11-05 Manufacturing method for an OSB-panel
PL09013890T PL2319671T3 (en) 2009-11-05 2009-11-05 Manufacturing method for an OSB-panel
ES09013890.0T ES2469792T3 (en) 2009-11-05 2009-11-05 Procedure to manufacture an OSB board

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Application Number Priority Date Filing Date Title
EP09013890.0A EP2319671B1 (en) 2009-11-05 2009-11-05 Manufacturing method for an OSB-panel

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EP2319671A1 EP2319671A1 (en) 2011-05-11
EP2319671B1 true EP2319671B1 (en) 2014-03-26

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