EP2033752A1 - Board for use on the outer areas of buildings and method for its manufacture - Google Patents
Board for use on the outer areas of buildings and method for its manufacture Download PDFInfo
- Publication number
- EP2033752A1 EP2033752A1 EP20070017353 EP07017353A EP2033752A1 EP 2033752 A1 EP2033752 A1 EP 2033752A1 EP 20070017353 EP20070017353 EP 20070017353 EP 07017353 A EP07017353 A EP 07017353A EP 2033752 A1 EP2033752 A1 EP 2033752A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base body
- plate
- separating edge
- wood
- cover layer
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000002023 wood Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 239000007858 starting material Substances 0.000 claims abstract description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920002635 polyurethane Polymers 0.000 claims abstract description 4
- 239000004814 polyurethane Substances 0.000 claims abstract description 4
- 239000003063 flame retardant Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 239000011814 protection agent Substances 0.000 claims description 2
- 238000000859 sublimation Methods 0.000 claims description 2
- 230000008022 sublimation Effects 0.000 claims description 2
- 229920002522 Wood fibre Polymers 0.000 claims 2
- 239000002025 wood fiber Substances 0.000 claims 2
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract 5
- 239000010410 layer Substances 0.000 description 12
- 238000000926 separation method Methods 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000013532 laser treatment Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/10—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of wood or with an outer layer of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/16—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of fibres or chips, e.g. bonded with synthetic resins, or with an outer layer of fibres or chips
Definitions
- the invention relates to a plate for arranging in the outer region of buildings, in particular a facade panel, with a flat body, which consists at least partially of wood or a wood material, according to the preamble of claim 1.
- Façade panels or other external cladding of buildings are traditionally also made of wood or wood-based materials. There is the problem that wood or wood materials have weathering due to rain, wind, sun, etc. only a limited life and comparatively quickly unsightly.
- the invention is based on the idea already integral to produce a separation of the separation edges (cut edges) against environmental influences when separating the plates.
- the at least one separating edge has a charred surface at least in sections. Under a charred surface is to be understood as a surface, as formed during processing of the respective material by means of a laser.
- the separating edge is formed in the surface region with a charred layer, an at least partially closed structure is present instead of the open-pored structure of a sawn separating edge.
- the separating edge simultaneously with its production receives an integral protective layer, which effectively and permanently protects it against environmental influences.
- the creation allows the cutting edge using a laser a very high degree of freedom of the geometric design of the plate.
- not only rectangular, but also round, star-shaped or other, arbitrarily shaped plates can be easily produced, which is not possible or only with great effort with conventional saws.
- the base body perpendicular to its planar extension has at least one passage opening which is bounded by an inner separation edge, which at least partially has a charred surface.
- the plate according to the invention can be provided, for example with mounting holes or light incidence, without thereby affecting the durability of the plate or the manufacturing process is made more complex.
- the base body has a plurality of through holes, wherein the through holes occupy an area of at least 10%, preferably at least 20%, more preferably at least 30% of the surface of the body in the plane of its planar extension.
- the plate according to the invention diverse optical and architectural effects, for example by the plate is provided with a plurality of arbitrarily shaped and arranged light incident openings. It should be noted again that the durability of the plate is not affected by the provision of the through holes and the through holes can be introduced in a simple manner.
- the at least one separating edge and / or the at least one inner separating edge has at least one cover layer. It is particularly preferred that the at least one cover layer is made similar to the at least one flat cover layer in order to realize the advantages mentioned above particularly pronounced.
- the base body has a fire protection agent, and / or that the at least one cover layer has a flame retardant. This results in - in combination with the invention, charred formation of at least one separating edge - a completely new plate for outdoor use of buildings, which can also meet high fire safety requirements.
- Type and configuration of the main body of the plate according to the invention are not particularly limited within the scope of the invention. However, it has proved to be advantageous in terms of a good durability, good workability by means of laser and good mechanical properties that the main body is formed by a flat-pressed plate (for example, defined according to EN 312). It has proved to be advantageous, in particular with regard to the use of a laser, that the flat-pressed plate contains polyurethane and / or PMDI as binder.
- the invention provides a method for producing the above-described plate according to claim 7.
- This method is characterized by the use of a laser for creating the at least one separating edge on the planar base body, so that the advantages discussed above can be achieved.
- the laser is operated with a power consumption in the range from 2,000 W to 5,000 W, preferably in the range from 3,000 W to 4,000 W, to destroy it heavily or make it visually unsightly.
- the type and operation of the laser are not particularly limited within the scope of the invention. However, it has proven to be advantageous and particularly effective for obtaining and forming the superficial charring of the separating edge that the laser cut is carried out by laser beam sublimation cutting.
- the laser cut is carried out without prior piercing, since this results in particularly uniform properties, in particular a particularly uniform degree of charring, of the separating edge.
- the inventors have found that particularly uniform and permanent charring of the cutting edge results when laser cutting is carried out at a feed rate in the range of 4 to 8 m / min, preferably in the range of 5 to 7 m / min.
- the plate according to the invention or the plate produced by the process according to the invention is particularly well suited as exterior cladding of buildings, in particular as facade panel, because of their excellent durability and resistance, even against fire and fungus, and their appealing appearance.
- FIG Fig. 1 and Fig. 2 schematically shown in a perspective view and a sectional view.
- the plate 1 shown here is a facade panel, although the present invention is not limited thereto and the plate can also be arranged for other purposes in the exterior of buildings, for example, for decorative purposes.
- the plate 1 in the context of the invention can take a variety of geometric shapes, for example, star-shaped, heart-shaped or the like.
- the plate 1 does not necessarily have to be arranged on an existing wall, but also itself at least partially define an outer wall of a building.
- the plate 1 initially has a two-dimensional body 2, which is formed in the present embodiment by a flat-pressed plate according to EN 312, wherein the plate contains polyurethane as a binder in the present embodiment. Alternatively or additionally, however, it is also possible to use other binders, in particular PMDI.
- the base body 2 contains a fire retardant, in the present embodiment, a fire retardant of the type "Fire Fighting Composition" Fa. Cosmetic & Chemical Products GmbH, 04539 Groitzsch, in a concentration of 0.3% by weight.
- the base body 2 is limited in the present embodiment by four separating edges 4, wherein each separating edge 4 has a charred surface layer which has been produced by a laser treatment, as will be explained in more detail below.
- the wide surface of the main body 2 (which in Fig. 2 upwardly facing surface of the main body 2) is provided with a flat cover layer 6 in order to protect the main body 2 from the effects of weathering.
- the cover layer 6 can be formed by a wide variety of materials, it is formed in the present embodiment by a primer on the surface then a color, for example of the type Perlcolor of Böhme AG, CH-3097 Liebefeld was applied. In this case, a flame retardant was added to the paint, in the present embodiment, a fire retardant of the type "Fire Fighting Composition" Fa. Cosmetic & Chemical Products GmbH, 04539 Groitzsch, in a concentration of 0.3% by weight.
- the surface of the base body 2 which is opposite the surface coated with the flat covering layer 6 may likewise be provided with such a flat covering layer, is in the present case Embodiment, however, only hydrophobic because it is usually exposed to less weather.
- the base body 2 perpendicular to its planar extension on a plurality of through holes 8, which are bounded by an inner separation edge 10, wherein this inner separation edge has a charred surface layer.
- This charred surface layer is also formed by a laser processing, as will be explained in more detail below.
- the passage openings 8 can be used in the present embodiment, for example, as mounting holes for passing screws or dowels, which is ensured by the charred surface layer that occurs even at these locations no premature confirmation of the plate 1 by weathering.
- both the separation edges 4 and the inner separation edges 10 are each provided with a cover layer 12, which is carried out in the present embodiment is similar to the flat cover layer described above. In this way, not only an attractive appearance, but also an excellent durability and good fire behavior of the plate 1 according to the invention results.
- the production of the plate 1 according to the invention takes place, for example, as follows.
- the two-dimensional body 2 is separated from a corresponding starting material (here flat press plate with fire retardant), by a laser cut along the separating edges 4 is performed.
- the laser beam is directed essentially parallel to the respective separating edge 4.
- a laser is used which has a power consumption of 3,500 W is operated and performs the laser cut by Laserstrahlsublimiernote without prior grooving.
- the laser is moved continuously along the respective separating edge 4, in the present embodiment at a feed rate of about 6 m / min.
- the laser treatment not only performs a separating cut, but at the same time forms a charred surface layer at the respective separating edge 4.
- passage openings 8 are introduced into the planar base body 2, either before or after creation of the separating edges 4.
- the base body 2 is provided with a flat cover layer 6, 12, on the in Fig. 2 upwardly directed wide area and in the region of the separating edges 4 and the passage openings 8. in this way one obtains the in Fig. 1 and Fig. 2 shown embodiment of the plate according to the invention.
- FIG Fig. 3 A plate 1 as a second embodiment of the present invention is shown in FIG Fig. 3 shown schematically in a partial view.
- plate 1 is characterized in that it has a plurality of through holes 8, which are introduced in the present embodiment with a variety of geometries and a large area in the base body 2.
- the production and coating of the passage openings 8 corresponds to those in the first embodiment.
- the passage openings 8 are provided in the present, second embodiment over a large area, so that in the present embodiment, about 40% of the surface of the base body 2 are taken in the plane of its planar extension through the through holes.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Finishing Walls (AREA)
Abstract
Description
Die Erfindung betrifft eine Platte zum Anordnen im Außenbereich von Bauwerken, insbesondere eine Fassadenplatte, mit einem flächigen Grundkörper, der zumindest teilweise aus Holz oder einem Holzwerkstoff besteht, nach dem Oberbegriff von Anspruch 1.The invention relates to a plate for arranging in the outer region of buildings, in particular a facade panel, with a flat body, which consists at least partially of wood or a wood material, according to the preamble of
Fassadenplatten oder sonstige Außenverkleidungen von Gebäuden werden traditionell auch aus Holz oder Holzwerkstoffen hergestellt. Dabei besteht das Problem, dass Hölzer bzw. Holzwerkstoffe bei Bewitterung durch Regen, Wind, Sonne etc. nur eine begrenzte Lebensdauer besitzen und vergleichsweise schnell unansehnlich werden.Façade panels or other external cladding of buildings are traditionally also made of wood or wood-based materials. There is the problem that wood or wood materials have weathering due to rain, wind, sun, etc. only a limited life and comparatively quickly unsightly.
Daher ist es üblich, die Platten mit einer witterungsbeständigen Beschichtung zu versehen. Dies führt jedoch nicht nur zu einem erheblichen Bearbeitungsaufwand, sondern hat sich auch an manchen Stellen der Platten als unzureichend erwiesen. Insbesondere an Stellen, an denen die Platten eine offenporige Struktur besitzen, wie an den Schnittkanten von Span- oder Faserplatten, kann eine Beschichtung nicht dieselbe Schutzwirkung entfalten wie an deren Breitflächen, die eine vergleichsweise geschlossene Struktur aufweisen. Daher sind an den Schnittkanten oft zusätzliche Maßnahmen erforderlich, was zu einer aufwändigen Herstellung führt.Therefore, it is common to provide the plates with a weather-resistant coating. However, this not only leads to a considerable processing effort, but has also proved in some places of the plates as insufficient. In particular, in places where the plates have an open-pore structure, as at the cut edges of particleboard or fiberboard, a coating can not develop the same protective effect as on their broad surfaces, which have a relatively closed structure. Therefore, additional measures are often required at the cutting edges, resulting in a complex production.
Darüber hinaus besteht auch das Bedürfnis, holzbasierte Außenverkleidungen hinsichtlich Brandschutz, Pilzbefall und weiterer Eigenschaften zu verbessern.In addition, there is also the need to improve wood-based exterior panels in terms of fire protection, fungal attack and other properties.
Es ist daher Aufgabe der Erfindung, eine Platte der eingangs genannten Art zum Anordnen im Außenbereich von Bauwerken bereitzustellen, die bei einfacher Herstellung eine hohe Dauerhaftigkeit besitzt.It is therefore an object of the invention to provide a plate of the type mentioned for arranging in the outer area of buildings, which has a high durability with ease of manufacture.
Diese Aufgabe wird durch eine Platte nach Anspruch 1 sowie ein Verfahren zu deren Herstellung nach Anspruch 7 gelöst. Besonders bevorzugte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by a plate according to
Der Erfindung liegt der Gedanke zugrunde, beim Auftrennen der Platten bereits integral eine Konservierung der Trennkanten (Schnittkanten) gegenüber Umwelteinflüssen zu erzeugen. Vor diesem Hintergrund ist erfindungsgemäß vorgesehen, dass bei einer gattungsgemäßen Platte die mindestens eine Trennkante zumindest abschnittsweise eine verkohlte Oberfläche aufweist. Unter einer verkohlten Oberfläche ist dabei eine Oberfläche zu verstehen, wie die bei Bearbeitung des jeweiligen Werkstoffs mittels eines Lasers entsteht.The invention is based on the idea already integral to produce a separation of the separation edges (cut edges) against environmental influences when separating the plates. Against this background, it is provided according to the invention that, in the case of a generic panel, the at least one separating edge has a charred surface at least in sections. Under a charred surface is to be understood as a surface, as formed during processing of the respective material by means of a laser.
Da die Trennkante im Oberflächenbereich mit einer verkohlten Schicht ausgebildet wird, ist anstelle der offenporigen Struktur einer gesägten Trennkante ein zumindest teilweise geschlossenes Gefüge vorhanden. Hierdurch erhält die Trennkante simultan mit deren Herstellung eine integrale Schutzschicht, die diese wirksam und dauerhaft vor Umwelteinflüssen schützt. Darüber hinaus erhält man eine einfache Herstellung der Platte mit wenigen Verfahrenschritten. Nicht zuletzt ermöglicht die Erstellung der Trennkante unter Einsatz eines Lasers einen sehr hohen Freiheitsgrad der geometrischen Ausgestaltung der Platte. So lassen sich nicht nur rechteckige, sondern auch runde, sternförmige oder sonstige, beliebig geformte Platten problemlos herstellen, was mit herkömmlichen Sägen nicht oder nur mit hohem Aufwand möglich ist.Since the separating edge is formed in the surface region with a charred layer, an at least partially closed structure is present instead of the open-pored structure of a sawn separating edge. As a result, the separating edge simultaneously with its production receives an integral protective layer, which effectively and permanently protects it against environmental influences. In addition, one obtains a simple production of the plate with a few process steps. Last but not least, the creation allows the cutting edge using a laser a very high degree of freedom of the geometric design of the plate. Thus, not only rectangular, but also round, star-shaped or other, arbitrarily shaped plates can be easily produced, which is not possible or only with great effort with conventional saws.
Vor diesem Hintergrund ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass der Grundkörper senkrecht zu seiner flächigen Erstreckung mindestens eine Durchgangsöffnung aufweist, die durch eine Innentrennkante begrenzt ist, welche zumindest abschnittsweise eine verkohlte Oberfläche aufweist. Auf diese Weise kann die erfindungsgemäße Platte beispielsweise mit Montageöffnungen oder Lichteinfallöffnungen versehen werden, ohne dass hierdurch die Dauerhaftigkeit der Platte beeinträchtigt oder das Herstellungsverfahren aufwändiger gemacht wird.Against this background, it is provided according to a development of the invention that the base body perpendicular to its planar extension has at least one passage opening which is bounded by an inner separation edge, which at least partially has a charred surface. In this way, the plate according to the invention can be provided, for example with mounting holes or light incidence, without thereby affecting the durability of the plate or the manufacturing process is made more complex.
Dabei ist es besonders bevorzugt, dass der Grundkörper eine Mehrzahl von Durchgangsöffnungen aufweist, wobei die Durchgangsöffnungen eine Fläche von mindestens 10%, bevorzugt mindestens 20%, besonders bevorzugt mindestens 30% der Fläche des Grundkörpers in der Ebene seiner flächigen Erstreckung einnehmen. Auf diese Weise lassen sich durch die erfindungsgemäße Platte vielfältige optische und architektonische Effekte erzielen, beispielsweise indem die Platte mit einer Mehrzahl beliebig ausgeformter und angeordneter Lichteinfallsöffnungen versehen wird. Dabei ist erneut zu beachten, dass die Dauerhaftigkeit der Platte durch das Vorsehen der Durchgangsöffnungen nicht beeinträchtigt wird und sich die Durchgangsöffnungen auf einfache Weise einbringen lassen.It is particularly preferred that the base body has a plurality of through holes, wherein the through holes occupy an area of at least 10%, preferably at least 20%, more preferably at least 30% of the surface of the body in the plane of its planar extension. In this way can be achieved by the plate according to the invention diverse optical and architectural effects, for example by the plate is provided with a plurality of arbitrarily shaped and arranged light incident openings. It should be noted again that the durability of the plate is not affected by the provision of the through holes and the through holes can be introduced in a simple manner.
Um bei der erfindungsgemäßen Platte die Dauerhaftigkeit und Witterungsbeständigkeit weiter zu erhöhen und ein gleichmäßiges und ansprechendes Erscheinungsbild zu ermöglichen, ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass die mindestens eine Trennkante und/oder die mindestens eine Innentrennkante mindestens eine Deckschicht aufweist. Dabei ist es besonders bevorzugt, dass die mindestens eine Deckschicht gleichartig zu der mindestens einen flächigen Deckschicht ausgeführt ist, um die zuvor genannten Vorteile besonders ausgeprägt zu realisieren.In order to further increase the durability and weather resistance of the panel according to the invention and to enable a uniform and attractive appearance, according to a development of the invention provided that the at least one separating edge and / or the at least one inner separating edge has at least one cover layer. It is particularly preferred that the at least one cover layer is made similar to the at least one flat cover layer in order to realize the advantages mentioned above particularly pronounced.
Gemäß einer Weiterbildung der Erfindung ist ferner vorgesehen, dass der Grundkörper ein Brandschutzmittel aufweist, und/oder dass die mindestens eine Deckschicht ein Flammschutzmittel aufweist. Hierdurch ergibt sich - in Kombination mit der erfindungsgemäßen, verkohlten Ausbildung der mindestens einen Trennkante - eine völlig neuartige Platte für den Außenbereich von Gebäuden, die auch hohe Anforderungen an Brandsicherheit erfüllen kann.According to one embodiment of the invention, it is further provided that the base body has a fire protection agent, and / or that the at least one cover layer has a flame retardant. This results in - in combination with the invention, charred formation of at least one separating edge - a completely new plate for outdoor use of buildings, which can also meet high fire safety requirements.
Art und Ausgestaltung des Grundkörpers der erfindungsgemäßen Platte sind im Rahmen der Erfindung nicht besonders beschränkt. Allerdings hat es sich im Hinblick auf eine gute Dauerhaftigkeit, gute Verarbeitbarkeit mittels Lasers sowie gute mechanische Eigenschaften als vorteilhaft erwiesen, dass der Grundkörper durch eine Flachpressplatte (beispielsweise definiert nach EN 312) gebildet ist. Dabei hat es sich insbesondere im Hinblick auf den Einsatz eines Lasers als vorteilhaft erwiesen, dass die Flachpressplatte als Bindemittel Polyurethan und/oder PMDI enthält.Type and configuration of the main body of the plate according to the invention are not particularly limited within the scope of the invention. However, it has proved to be advantageous in terms of a good durability, good workability by means of laser and good mechanical properties that the main body is formed by a flat-pressed plate (for example, defined according to EN 312). It has proved to be advantageous, in particular with regard to the use of a laser, that the flat-pressed plate contains polyurethane and / or PMDI as binder.
Gemäß einer weiteren Zielrichtung stellt die Erfindung ein Verfahren zum Herstellen der oben beschriebenen Platte nach Anspruch 7 bereit. Dieses Verfahren ist durch den Einsatz eines Lasers zum Erstellen der mindestens einen Trennkante an dem flächigen Grundkörper gekennzeichnet, sodass sich die oben diskutierten Vorteile erzielen lassen.According to a further aspect, the invention provides a method for producing the above-described plate according to claim 7. This method is characterized by the use of a laser for creating the at least one separating edge on the planar base body, so that the advantages discussed above can be achieved.
Um bei diesem Verfahren einen optimalen Verkohlungsgrad der Trennkante zu erreichen, welcher eine hohe Witterungsbeständigkeit sicherstellt, ohne die Trennkante zu stark zu zerstören oder optisch unansehnlich zu machen, ist gemäß einer Weiterbildung des erfindungsgemäßen Verfahrens vorgesehen, dass der Laser mit einer Leistungsaufnahme im Bereich von 2.000 W bis 5.0000 W, bevorzugt im Bereich von 3.000 W bis 4.000 W betrieben wird.In order to achieve an optimum degree of charring of the separating edge in this method, which ensures a high weather resistance, without the separating edge According to a further development of the method according to the invention, the laser is operated with a power consumption in the range from 2,000 W to 5,000 W, preferably in the range from 3,000 W to 4,000 W, to destroy it heavily or make it visually unsightly.
Die Art und die Betriebsweise des Lasers sind im Rahmen der Erfindung nicht besonders beschränkt. Allerdings hat es sich zur Erzielung und Ausbildung der oberflächlichen Verkohlung der Trennkante als vorteilhaft und besonders wirksam erwiesen, dass der Laserschnitt durch Laserstrahlsublimierschneiden ausgeführt wird.The type and operation of the laser are not particularly limited within the scope of the invention. However, it has proven to be advantageous and particularly effective for obtaining and forming the superficial charring of the separating edge that the laser cut is carried out by laser beam sublimation cutting.
Ferner ist es im Rahmen der Erfindung besonders bevorzugt, dass der Laserschnitt ohne vorheriges Einstechen ausgeführt wird, da sich hierdurch besonders gleichmäßige Eigenschaften, insbesondere ein besonders gleichmäßiger Verkohlungsgrad, der Trennkante ergibt.Furthermore, it is particularly preferred in the context of the invention that the laser cut is carried out without prior piercing, since this results in particularly uniform properties, in particular a particularly uniform degree of charring, of the separating edge.
In ähnlicher Weise haben die Erfinder festgestellt, dass sich durch eine besonders gleichmäßige und dauerhafte Verkohlung der Trennkante ergibt, wenn der Laserschnitt mit einer Vorschubgeschwindigkeit im Bereich von 4 bis 8 m/min, bevorzugt im Bereich von 5 bis 7 m/min ausgeführt wird.Similarly, the inventors have found that particularly uniform and permanent charring of the cutting edge results when laser cutting is carried out at a feed rate in the range of 4 to 8 m / min, preferably in the range of 5 to 7 m / min.
Wie bereits oben stehend ausgeführt, eignet sich die erfindungsgemäße Platte bzw. die nach dem erfindungsgemäßen Verfahren hergestellte Platte besonders gut als Außenverkleidung von Bauwerken, insbesondere als Fassadenplatte, und zwar aufgrund ihrer ausgezeichneten Dauerhaftigkeit und Widerstandsfähigkeit, auch gegenüber Brand- und Pilzbefall, sowie ihres ansprechenden Erscheinungsbildes.As already stated above, the plate according to the invention or the plate produced by the process according to the invention is particularly well suited as exterior cladding of buildings, in particular as facade panel, because of their excellent durability and resistance, even against fire and fungus, and their appealing appearance.
- Fig. 1Fig. 1
- zeigt schematisch eine Perspektivansicht einer ersten Ausführungsform der erfindungsgemäßen Platte;shows schematically a perspective view of a first embodiment of the plate according to the invention;
- Fig. 2Fig. 2
-
zeigt schematisch eine Schnittansicht der in
Fig. 1 gezeigten Platte, wobei der Schnitt entlang der Linie II-II inFig. 1 geführt ist;schematically shows a sectional view of inFig. 1 shown plate, wherein the section along the line II-II inFig. 1 is guided; - Fig. 3Fig. 3
- zeigt schematisch eine Teilansicht einer zweiten Ausführungsform der erfindungsgemäßen Platte.schematically shows a partial view of a second embodiment of the plate according to the invention.
Bevorzugte Ausführungsformen der vorliegenden Erfindung werden nachfolgend ausführlich unter Bezugnahme auf die begleitenden Zeichnungen beschrieben.Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
Eine Platte 1 gemäß einer ersten Ausführungsform der vorliegenden Erfindung ist in
Darüber hinaus ist zu beachten, dass die Platte 1 nicht notwendigerweise auf einer bestehenden Wand angeordnet werden muss, sondern auch selbst zumindest teilweise eine Außenwand eines Gebäudes definieren kann.In addition, it should be noted that the
Die Platte 1 besitzt zunächst einen flächigen Grundkörper 2, der in der vorliegenden Ausführungsform durch eine Flachpressplatte nach EN 312 gebildet ist, wobei die Platte als Bindemittel in der vorliegenden Ausführungsform Polyurethan enthält. Alternativ oder zusätzlich ist es jedoch ebenso möglich, andere Bindemittel einzusetzen, wie insbesondere PMDI. Darüber hinaus enthält der Grundkörper 2 ein Brandschutzmittel, und zwar in der vorliegenden Ausführungsform ein Brandschutzmittel vom Typ "Fire Fighting Composition" der Fa. Cosmetische & Chemische Produkte GmbH, 04539 Groitzsch, in einer Konzentration von 0,3 Gewichts-%.The
Der Grundkörper 2 ist in der vorliegenden Ausführungsform durch vier Trennkanten 4 begrenzt, wobei jede Trennkante 4 eine verkohlte Oberflächenschicht aufweist, die durch eine Laserbehandlung erzeugt worden ist, wie untenstehend noch näher erläutert wird.The
Die Breitfläche des Grundkörpers 2 (die in
Die der mit der flächigen Deckschicht 6 beschichteten Oberfläche gegenüberliegende Oberfläche des Grundkörpers 2 kann zwar ebenfalls mit einer derartigen flächigen Deckschicht versehen sein, ist in der vorliegenden Ausführungsform jedoch lediglich hydrophobiert, da sie meist geringeren Witterungseinflüssen ausgesetzt ist.Although the surface of the
Wie in
Wie ebenfalls in
Die Herstellung der erfindungsgemäßen Platte 1 vollzieht sich beispielsweise wie folgt. Zunächst wird der flächige Grundkörper 2 von einem entsprechenden Ausgangsmaterial (hier Flachpressplatte mit Brandschutzmittel) abgetrennt, und zwar indem ein Laserschnitt entlang der Trennkanten 4 geführt wird. Dabei ist der Laserstrahl selbstverständlich im Wesentlichen parallel zu der jeweiligen Trennkante 4 gerichtet. In der vorliegenden Ausführungsform kommt ein Laser zum Einsatz, der mit einer Leistungsaufnahme von 3.500 W betrieben wird und den Laserschnitt durch Laserstrahlsublimierschneiden ohne vorheriges Einstechen ausführt.The production of the
Während der Erstellung des Laserschnitts wird der Laser kontinuierlich entlang der jeweiligen Trennkante 4 bewegt, und zwar bei der vorliegenden Ausführungsform mit einer Vorschubgeschwindigkeit von etwa 6 m/min. Durch die Laserbehandlung wird nicht nur ein Trennschnitt ausgeführt, sondern es wird gleichzeitig eine verkohlte Oberflächenschicht an der jeweiligen Trennkante 4 gebildet. Zusätzlich ist es jedoch ebenso möglich, eine weiterführende Laserbehandlung auszuführen, um den Verkohlungsgrad der Oberflächenschicht noch weiter zu erhöhen.During the production of the laser cut, the laser is moved continuously along the
In ähnlicher Weise werden die Durchgangsöffnungen 8 in den flächigen Grundkörper 2 eingebracht, und zwar entweder vor oder nach Erstellung der Trennkanten 4.Similarly, the
Anschließend wird der Grundkörper 2 mit einer flächigen Deckschicht 6, 12 versehen, und zwar auf der in
Eine Platte 1 als zweite Ausführungsform der vorliegenden Erfindung ist in
Allerdings sind die Durchgangsöffnungen 8 in der vorliegenden, zweiten Ausführungsform großflächig vorgesehen, sodass in der vorliegenden Ausführungsform ca. 40% der Fläche des Grundkörpers 2 in der Ebene seiner flächigen Erstreckung durch die Durchgangsöffnungen eingenommen sind. Hierdurch lassen sich völlig neuartige optische und architektonische Effekte erzielen, beispielsweise ein neuartiges Spiel von Licht und Schatten, ohne dass die Dauerhaftigkeit und bautechnische Sicherheit der Platte hierdurch beeinträchtigt werden.However, the
Claims (12)
einem flächigen Grundkörper (2), der zumindest teilweise aus Holz oder einem Holzwerkstoff, insbesondere einem Holzfaserwerkstoff, besteht, wobei der Grundkörper (2) mindestens eine Trennkante (4) aufweist, entlang derer er von einem Ausgangsmaterial abgetrennt worden ist, und
mindestens einer flächigen Deckschicht (6), die auf mindestens einer Oberfläche des Grundkörpers (2) vorgesehen ist, um den Grundkörper (2) gegenüber Witterungseinflüssen zu schützen,
dadurch gekennzeichnet, dass
die mindestens eine Trennkante (4) zumindest abschnittsweise eine verkohlte Oberfläche aufweist.Plate (1) for placement in the exterior of buildings, in particular facade panel, with
a flat base body (2), which consists at least partially of wood or a wood material, in particular a wood fiber material, wherein the base body (2) has at least one separating edge (4) along which it has been separated from a starting material, and
at least one flat cover layer (6), which is provided on at least one surface of the base body (2) in order to protect the base body (2) from the effects of the weather,
characterized in that
the at least one separating edge (4) has a charred surface at least in sections.
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EP07017353.9A EP2033752B8 (en) | 2007-09-05 | 2007-09-05 | Exterior finishing and method for its manufacture |
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EP07017353.9A EP2033752B8 (en) | 2007-09-05 | 2007-09-05 | Exterior finishing and method for its manufacture |
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EP2033752B8 EP2033752B8 (en) | 2015-12-16 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202008006889U1 (en) | 2008-05-21 | 2009-10-15 | Brühwiler, Markus | thermal insulation element |
DE102014013891A1 (en) * | 2014-09-18 | 2016-03-24 | Sebastian Sasserath | Process for producing a wood-based material surface |
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HUBER H A ET AL: "LASER CUT FURNITURE PARTS", WOODWORKING AND FURNITURE DIGEST, WHEATON, IL, US, 14 November 1980 (1980-11-14), pages 30 - 32, XP000198870, ISSN: 0043-7778 * |
RUSKE W: "SCHUTZ VON HOLZKONSTRUKTIONEN", DEUTSCHE BAUZEITSCHRIFT - DBZ, BERTELSMANN FACHVERLAG. GUTERSLOH, DE, vol. 39, no. 8, 1 August 1991 (1991-08-01), pages 1149 - 1151, XP000229795, ISSN: 0011-4782 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008006889U1 (en) | 2008-05-21 | 2009-10-15 | Brühwiler, Markus | thermal insulation element |
DE102014013891A1 (en) * | 2014-09-18 | 2016-03-24 | Sebastian Sasserath | Process for producing a wood-based material surface |
Also Published As
Publication number | Publication date |
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EP2033752B8 (en) | 2015-12-16 |
EP2033752B1 (en) | 2015-10-28 |
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