DE102011009871A1 - Supporting core composite plate, useful as an interior fitting plate in rail vehicles, preferably as a floor, separating wall, and side walls comprises two stable outer layers and a light supporting core arranged between the outer layers - Google Patents

Supporting core composite plate, useful as an interior fitting plate in rail vehicles, preferably as a floor, separating wall, and side walls comprises two stable outer layers and a light supporting core arranged between the outer layers Download PDF

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Publication number
DE102011009871A1
DE102011009871A1 DE201110009871 DE102011009871A DE102011009871A1 DE 102011009871 A1 DE102011009871 A1 DE 102011009871A1 DE 201110009871 DE201110009871 DE 201110009871 DE 102011009871 A DE102011009871 A DE 102011009871A DE 102011009871 A1 DE102011009871 A1 DE 102011009871A1
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support core
outer layers
matrix
core composite
composite panel
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DE201110009871
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German (de)
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Martin Hertel
Robert Bube
Matthias Wittig
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Elbe Flugzeugwerke GmbH
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Elbe Flugzeugwerke GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/10—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer reinforced with filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/28—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/10—Trains

Abstract

Supporting core composite plate as an interior fitting plate in rail vehicles, comprises two stable outer layers and a light supporting core arranged between the outer layers. The outer layers contain fabrics, clutch, knitted fabrics or nonwoven fabrics made of fibers pre-impregnated with matrix. Independent claims are also included for: (1) producing the supporting core composite plate, comprising bonding a semi-finished fiber for the outer layers, with the supporting core, in the pre-impregnated matrix, using a hot molding process; and (2) the supporting core composite plate with outer layers, and at least one supporting core.

Description

Die Erfindung betrifft eine Stützkernverbundplatte bzw. eine Sandwichplatte. Die Erfindung betrifft außerdem die Verwendung einer Stützkernverbundplatte bzw. einer Sandwichplatte im SchienenfahrzeugbauThe invention relates to a support core composite plate or a sandwich plate. The invention also relates to the use of a support core composite panel or a sandwich panel in rail vehicle construction

Übliche Sandwichkonstruktionen bestehen aus einem leichten Zellen- bzw. Wabenkern oder einem monolithischen Kern und zwei stabilen Deckschichten. Geläufig sind Kerne aus Polyurethanschaum (PUR), Mineralwolle oder Papierwaben. Durch den Verbund aus Haftung oder Verklebung der Deckschichten mit dem schubsteifen Kern erhält die Sandwichplatte eine hohe Festigkeit und eine große Steifigkeit.Common sandwich constructions consist of a light cell or honeycomb core or a monolithic core and two stable cover layers. Cores are made of polyurethane foam (PUR), mineral wool or paper honeycomb. The composite of adhesion or bonding of the cover layers to the shear-resistant core gives the sandwich panel high strength and high rigidity.

Erfindungsgemäß können die Deckschichten aus vorimprägnierten Fasern und einer Matrix hergestellt sein. Als Fasern eigenen sich E-Glasfaser-Gewebe und andere Fasern wie S-Glas und Kohlenstoff oder Polymerfasern. Als Matrix können Phenol-Formaldehyd (PF) und andere wie Epoxid (EP) oder Vinylester (VE) oder ungesättigtes Polyester (UP) oder Polyurethan (PU) zum Einsatz kommen.According to the invention, the cover layers may be made of prepreg fibers and a matrix. As fibers are suitable E-glass fiber fabric and other fibers such as S-glass and carbon or polymer fibers. As a matrix, phenol-formaldehyde (PF) and others such as epoxy (EP) or vinyl ester (VE) or unsaturated polyester (UP) or polyurethane (PU) can be used.

Erfindungsgemäße Stützkerne können als Zellenstützkerne mit hexagonalen Zellenquerschnitten aus Papier (mit PF-Matrix getränkt) ausgebildet sein. Auch alle anderen Zellformen sind prinzipiell denkbar. Hexagonale Zellenquerschnitte sind jedoch vergleichsweise kostengünstig herzustellen weswegen sie im Allgemeinen bevorzugt werden. Denkbar sind hier auch Kerne aus anderen Materialien wie Vliese oder Gewebe aus Fasern sowie metallische Folien. Alternativ können monolithische Balsa-Hirnholz-Stützkerne oder monolithische Strukturschaumstoff-Stützkerne eingesetzt werden.Support cores according to the invention can be designed as cell support cores with hexagonal cell cross sections made of paper (impregnated with PF matrix). All other cell types are conceivable in principle. However, hexagonal cell cross-sections are comparatively inexpensive to manufacture and therefore are generally preferred. Also conceivable are cores made of other materials such as nonwovens or fabrics of fibers and metallic films. Alternatively, monolithic balsa end grain cores or monolithic structural foam support cores may be employed.

Hohlräume von Zellenstützkernen können einen Kernfüllstoff zur Versiegelung der Bauteilkanten und/oder zur lokalen Verstärkung enthalten.Cavities of cell support cores may include a core filler for sealing the component edges and / or for local reinforcement.

Unter Umständen können Lasteinleitungselemente zur lokalen Anbindung an eine ggf. nicht sichtbare Rahmenstruktur bzw. zur Anbindung von ggf. sichtbaren Bauteilen an die Stützkernbauteile mit Befestigungselementen wie Schrauben oder Bolzen oder Nieten vorgesehen sein.Under certain circumstances, load introduction elements for local connection to a possibly not visible frame structure or for connection of possibly visible components to the support core components may be provided with fastening elements such as screws or bolts or rivets.

Die erfindungsgemäßen Stützkernplatten erfüllen die Anforderungen an eine möglichst geringe Masse für ebene und leicht gekrümmte Platten. Außerdem lassen sie sich, insbesondere bei Einsatz von E-Glasfasergewebe, sehr kostengünstig herstellen und bieten eine hohe lokale Druckfestigkeit. Auch hohe Punktlasten, wie sie durch hoch belastete sog. Pfennigabsätze auf Bodenplatten einwirken, kann dauerhaft widerstanden werden, wenn sie über eine vergleichsweise hohe Deckschichtdicke verfügen. Sie ist zwar für die Biegefestigkeit im Prinzip nicht notwendig, stabilisiert aber den lokal sehr begrenzten Eindrückbereich. Die Kosten aus einer verhältnismäßig hohen Dicke, die viel Material erfordert, kann durch den Einsatz des kostengünstigen E-Glasfaser-Gewebes kompensiert werden.The support core plates according to the invention meet the requirements for the lowest possible mass for flat and slightly curved plates. In addition, they can be produced very cost-effectively, especially when using E-glass fiber fabric, and offer high local compressive strength. Even high point loads, as they act through highly loaded so-called. Pfennigabsätze on floor slabs, can be permanently resisted, if they have a comparatively high cover layer thickness. Although it is not necessary for the bending strength in principle, but stabilizes the locally very limited indentation. The cost of a relatively high thickness, which requires much material, can be compensated by the use of low-cost E-glass fiber fabric.

Stützkerne mit möglichst homogenem Aufbau werden wegen der hohen, lokal begrenzten Druckfestigkeit bevorzugt. Es eignen sich daher monolithische Kerne wie Strukturschaumstoffe und Balsa-Hirnholz oder Zellenstützkerne mit möglichst geringer Zellweite besonders gut.Support cores with as homogeneous a structure as possible are preferred because of the high, locally limited compressive strength. Therefore, monolithic cores such as structural foams and balsa end grain or cell support cores with the lowest possible cell width are particularly suitable.

Um eine hohe Biegesteifigkeit und Biegefestigkeit der Platten, also eine geringe Durchbiegung bei hoher Belastung, zu erzielen, kann die erfindungsgemäße Stützkernverbundbauweise mit Deckschichten aus faserverstärkten Kunststoffen und relativ schubfesten Stützkernen gewählt werden.In order to achieve a high flexural rigidity and flexural strength of the plates, ie a low deflection under high load, the support core composite construction according to the invention can be selected with cover layers of fiber-reinforced plastics and relatively shear-resistant support cores.

Die Bauweise und die eingesetzten Materialien sollen eine Lebensdauer sicherstellen, die der der Fahrzeuge gleicht und kein Austausch notwendig ist bei benutzungsgerechtem Umgang. Das ist ein großer Vorteil zu beispielsweise herkömmlichen Fußbodenplatten. Diese Dauerfestigkeit wird erreicht durch die erfinderische Stützkernverbundbauweise mit Deckschichten aus faserverstärkten Kunststoffen und Stützkernen, die eine möglichst homogene Anbindung des Kerns an die Deckschichten garantieren.The construction method and the materials used are intended to ensure a service life which is similar to that of the vehicles and no replacement is necessary in the case of use that is suitable for the purpose. This is a great advantage for example for conventional floorboards. This fatigue strength is achieved by the inventive support core composite construction with cover layers of fiber-reinforced plastics and support cores, which guarantee the most homogeneous possible bonding of the core to the cover layers.

Beständigkeit gegen Hydraulikhilfsstoffe wie Öl und Fett oder Kraftstoffe wie Diesel und Benzin wird erreicht durch die Verwendung von: E-Glas, PF-Matrix, Papier-Zellenstützkerne mit PF-Matrix. Die eingesetzten Werkstoffe sind in Bezug auf diese Stoffe unempfindlich.Resistance to hydraulic aids such as oil and grease or fuels such as diesel and gasoline is achieved through the use of: E-glass, PF matrix, paper cell support cores with PF matrix. The materials used are insensitive to these substances.

Eine Beständigkeit gegen Flüssigkeiten aller Art (insbesondere Wasser und phosphorsäurehaltige Cola) wird erreicht durch die Verwendung von: E-Glas, PF-Matrix, Papier-Zellenstützkerne mit PF-Matrix oder Strukturschaumstoffe; bei Balsa-Hirnholz muss je nach Anwendungsbereich die Bauteilkante versiegelt werden. Diese Werkstoffe sind in Bezug auf diese Stoffe unempfindlich.Resistance to liquids of all types (especially water and phosphoric acid cola) is achieved by using: E-glass, PF matrix, paper cell support cores with PF matrix or structural foams; Depending on the area of application, the edge of the balsa end grain must be sealed. These materials are insensitive to these substances.

Eine Beständigkeit gegen Verunreinigungen aller Art (beispielsweise Straßendreck, Straßensalz, Rollsplitt, Teer, Bitumen) wird erreicht durch die Verwendung von: E-Glas, PF-Matrix, Papier-Zellenstützkerne mit PF-Matrix oder Strukturschaumstoffe (bei Balsa-Hirnholz muss je nach Anwendungsbereich die Bauteilkante versiegelt werden). Die eingesetzten Werkstoffe sind in Bezug auf diese Stoffe unempfindlich.Resistance to all kinds of contaminants (such as road debris, road salt, crushed stone, tar, bitumen) is achieved through the use of: E-glass, PF matrix, paper cell support cores with PF matrix or structural foams (for balsa-endowed wood, depending on Application area the component edge are sealed). The materials used are insensitive to these substances.

Eine thermische Isolation wird erreicht durch die Verwendung der Stützkernverbundbauweise und das eingeschlossene Luftvolumen. Die Verwendung dieser Bauweise stellt einen Vorteil zu anderen Bauweisen dar – zumindest ohne zusätzliche Isolationselemente.Thermal insulation is achieved through the use of the core support structure and trapped air volume. The use of this design is an advantage to other designs - at least without additional insulation elements.

Eine akustische Dämpfung wird erreicht durch die Verwendung der Stützkernverbundbauweise und das eingeschlossene Luftvolumen. Die Verwendung dieser Bauweise stellt einen Vorteil zu anderen Bauweisen dar – zumindest ohne zusätzliche Dämpfungselemente.Acoustic damping is achieved through the use of the core support structure and trapped air volume. The use of this design is an advantage to other designs - at least without additional damping elements.

Die erfindungsgemäße Stützkernverbundplatte zeigt auch die geforderte Beständigkeit gegen erhöhte Temperaturen. Die Bauteile können auch unter erhöhter Umgebungstemperatur von 120°C ihre Anforderungen erfüllen.The support core composite panel according to the invention also shows the required resistance to elevated temperatures. The components can meet their requirements even under elevated ambient temperatures of 120 ° C.

Um Kriterien des Brandschutzes zu erfüllen, nämlich Rauchgasgiftigkeit, Rauchgasdichte, Energiefreisetzung und Energiefreisetzungsrate, wird verwendet: für die Deckschichten: PF-Matrix (günstige Kosten, günstige Eigenschaften bei Brandschutznachweis); für die Stützkerne: PF-Matrix-getränkte Papier-Zellenstützkerne (wenn es sehr leicht sein muss); Balsa-Hirnholz oder Strukturschaumstoffe (wenn die Kosten eine größere Rolle spielen).In order to meet criteria of fire protection, namely flue gas toxicity, flue gas density, energy release and energy release rate, is used: for the outer layers: PF matrix (low cost, favorable properties in fire proof); for the support cores: PF matrix-soaked paper cell support cores (when it must be very light); Balsa end grain or structural foam (if cost matters more).

Der Herstellprozess: Heißpressen im Einschrittverfahren. Durch die matrixvorimprägnierten Faserhalbzeuge werden die Deckschichten und die Stützkerne integral miteinander verklebt.The manufacturing process: hot pressing in one-step process. By the matrix pre-impregnated fiber semi-finished products, the cover layers and the support cores are bonded together integrally.

Gegenstand der Erfindung sind auch:
Stützkernverbundplatten mit Deckschichten aus faserverstärkten Kunststoffen in Verbindung mit Stützkernen aus Zellenstützkernen (aus Polyamidpapier und Phenolharz), Balsa-Hirnholz oder Strukturschaumstoffen im Schienenfahrzeugbau – das gilt hierbei für alle Kombinationsmöglichkeiten aus den vorangestellten Deckschichten und Stützkernen:

  • – aus Deckschichten aus faserverstärkten Kunststoffen (ohne Spezifizierung der Fasern oder Matrizes)
  • – aus Stützkernen, die aus folgenden Materialien bestehen:
  • • Balsa-Hirnholz
  • • Strukturschaumstoffen (ohne Spezifizierung der Grundwerkstoffe)
  • • Zellenstützkerne (beinhaltet jede Zellform (also hexagonale, rechteckige (auch quadratische), spezielle andere Formen – aber: alles Querschnittsformen, die in Dickenrichtung ein offenes Profil darstellen – also zu den Deckschichten hin offen sind – also Zellen darstellen) aus Metallen oder Polyamidpapier und Phenolharz (letztere in der Offenlegungsschrift als Wabenkerne bezeichnet)
The invention also relates to:
Support core composite panels with fiber-reinforced plastic facings in conjunction with core cores made from cell support cores (made of polyamide paper and phenolic resin), balsa end grain or structural foams in rail vehicle construction - this applies to all possible combinations of the preceding facings and support cores:
  • - of cover layers of fiber reinforced plastics (without specification of fibers or matrices)
  • - of support cores consisting of the following materials:
  • • Balsa end grain
  • • structural foams (without specifying the base materials)
  • • cell support cores (includes any cell shape (ie hexagonal, rectangular (also square), special other shapes - but: all cross-sectional shapes, which are an open profile in the thickness direction - so are open to the outer layers - so cells) made of metals or polyamide paper and Phenolic resin (the latter being referred to as honeycomb cores in the published patent application)

Geometrie der Stützkerne:Geometry of the support cores:

  • - bei Zellenstützkernen sind die Zellen zu den Deckschichten hin offen (die Querschnittsform der Zellen ist hier eher unbedeutend und richtet sich vorrangig nach dem Anwendungszweck)in the case of cell support cores, the cells are open towards the cover layers (the cross-sectional shape of the cells is rather insignificant here and depends primarily on the intended use)
  • - bei Balsa-Hirnholz und Strukturschaumstoff liegt der Stützkern monolithisch vor- For balsa end grain and structural foam, the support core is monolithic

Zur Anwendung: in Schienenfahrzeugen zu strukturellen (beispielsweise Fußbodenplatten, Trennwände, Einhausungen, Treppen) oder dekorativen (beispielsweise abgehangene Decken, Seitenverkleidungen) ZweckenFor use: in structural vehicles (eg floorboards, partitions, enclosures, stairs) or decorative (eg suspended ceilings, side trim) purposes

Die Verbindung der Schichten erfolgt durch einen Heißpressprozess: die matrixvorimprägnierten Faserhalbzeuge werden im Einschussverfahren mit den Stützkernen in einer Heißpresse miteinander irreversibel verbunden (genau genommen: verklebt)The bonding of the layers takes place by means of a hot-pressing process: the matrix-preimpregnated semifinished fiber products are irreversibly connected to one another in a shot-peening process with the support cores in a hot press (strictly speaking: adhesively bonded)

Zur Anwendungsanpassung: durch Kombination verschiedener, spezieller Fasern, Matrizes und Stützkerne (Balsa-Hirnholz, Strukturschaumstoffe, Zellenstützkerne aus Metallfolien oder Polyamidpapier und Phenolharz) können die Bauteile gezielt an die Anforderungen im speziellen Anwendungsfall angepasst werden; das betrifft hauptsächlich: mechanische Eigenschaften, Brandschutz, thermische Isolation, akustische Isolation.For application adaptation: by combining different, special fibers, matrices and support cores (balsa end grain, structural foams, cell support cores made from metal foils or polyamide paper and phenolic resin), the components can be specifically adapted to the requirements of a specific application; This mainly concerns: mechanical properties, fire protection, thermal insulation, acoustic insulation.

Die Anpassung führt zu einer optimalen Massebilanz der Sandwich- bzw. Stützkernverbundplatten bei Erfüllung gegebener Anforderungen; bedingt durch die hohen spezifischen Materialfestigkeiten und -steifigkeiten sowie die gezielte Ausnutzung derer durch die Stützkernverbundbauweise wird ein Minimum an nötiger Masse in die Fahrzeuge eingebrachtThe adaptation leads to an optimal mass balance of the sandwich or support core composite panels when meeting given requirements; Due to the high specific material strengths and stiffnesses as well as the targeted utilization of them by the support core composite construction, a minimum of necessary mass is introduced into the vehicles

Claims (10)

Stützkernverbundplatte als Innenausbauplatte in Schienenfahrzeugen, mit zwei stabilen Deckschichten und einem zwischen den Deckschichten angeordneten, leichten Stützkern, dadurch gekennzeichnet, dass die Deckschichten Gewebe, Gelege, Gewirke oder Vliese aus mit Matrix vorimprägnierten Fasern umfassen.Support core composite panel as Innenausbauplatte in rail vehicles, with two stable outer layers and arranged between the outer layers, lightweight support core, characterized in that the outer layers include woven, laid, knitted or nonwoven fabrics of preimpregnated with matrix fibers. Stützkernverbundplatte nach Anspruch 1, gekennzeichnet durch E-Glas-, S-Glas-, Kohlenstoff- oder Polymerfasern als mit Matrix vorimprägnierte Fasern sowie Phenol-Formaldehyd (PF), Epoxid (EP), Vinylester (VE), ungesättigtes Polyester (UP) oder Polyurethan (PU) als Matrix.Support core composite panel according to claim 1, characterized by E-glass, S-glass, carbon or polymer fibers as prepreg impregnated with matrix fibers and phenol-formaldehyde (PF), epoxy (EP), vinyl ester (VE), unsaturated polyester (UP) or Polyurethane (PU) as a matrix. Stützkernverbundplatte als Innenausbauplatte in Schienenfahrzeugen, mit zwei stabilen Deckschichten und einem zwischen den Deckschichten angeordneten, leichten Stützkern, dadurch gekennzeichnet, dass der Stützkern Zellen mit vorzugsweise hexagonalen Zellenquerschnitten umfasst, der insbesondere aus mit PF-Matrix beschichtetem Papier oder Metallfolie gebildet ist.Support core composite panel as interior panel in rail vehicles, with two stable cover layers and one between the cover layers arranged, light support core, characterized in that the support core comprises cells having preferably hexagonal cell cross-sections, which is in particular formed from PF-matrix coated paper or metal foil. Stützkernverbundplatte nach obigem Anspruch mit Hohlräumen der Zellenstützkerne, gekennzeichnet durch einen Stützkernfüllstoff in den Hohlräumen des Stützkerns zur Versiegelung der Bauteilkanten und/oder lokalen Verstärkung des Zellenstützkerns.Support core composite panel according to the above claim with cavities of the cell support cores, characterized by a Stützkernfüllstoff in the cavities of the support core for sealing the component edges and / or local reinforcement of the cell support core. Stützkernverbundplatte als Innenausbauplatte in Schienenfahrzeugen, mit zwei stabilen Deckschichten und einem zwischen den Deckschichten angeordneten, leichten Stützkern, dadurch gekennzeichnet, dass der Stützkern monolithisch, insbesondere aus Balsa-Hirnholz oder aus Strukturschaumstoff, ausgebildet ist.Support core composite panel as Innenausbauplatte in rail vehicles, with two stable outer layers and arranged between the outer layers, lightweight support core, characterized in that the support core is monolithic, in particular made of balsa end grain or structural foam. Stützkernverbundplatte mit Deckschichten nach Anspruch 1 oder 2 und mindestens einem Stützkern nach Anspruch 3 bis 5.Support core composite panel with cover layers according to claim 1 or 2 and at least one support core according to claim 3 to 5. Stützkernverbundplatte nach dem obigen Anspruch, gekennzeichnet durch Deckschichten mit E-Glasfasern und einer PF-Matrix und einem Zellenstützkern bestehend aus mit PF-Matrix beschichtetem Papier.Support core composite panel according to the above claim, characterized by cover layers with E-glass fibers and a PF matrix and a cell support core consisting of PF matrix-coated paper. Verwendung einer Stützkernverbundplatte mit zwei stabilen Deckschichten und einem zwischen den Deckschichten angeordneten, leichten Stützkern nach einem der obigen Ansprüche als Innenausbauplatte in Schienenfahrzeugen, insbesondere als Boden-, Trennwand-, Seitenwand-, Einhausungs-, Decken- oder Treppenstufenplatte.Use of a support core composite plate with two stable cover layers and a light support core arranged between the cover layers according to one of the above claims as interior mounting plate in rail vehicles, in particular as a floor, partition wall, side wall, Einhausungs-, ceiling or stair tread plate. Verwendung einer Stützkernverbundplatte nach einem der obigen Ansprüche zur thermischen Isolation und/oder zur akustischen Dämpfung.Use of a support core composite panel according to any of the above claims for thermal insulation and / or acoustic damping. Verfahren zur Herstellung einer Stützkernverbundplatte nach einem der obigen Ansprüche, gekennzeichnet durch einen Heißpressprozess, in dem matrixvorimprägnierte Faserhalbzeuge für die Deckschichten mit dem Stützkern verklebt werden.Method for producing a support core composite panel according to one of the above claims, characterized by a hot pressing process, in which matrix preimpregnated semi-finished fiber products for the cover layers are bonded to the support core.
DE201110009871 2011-01-31 2011-01-31 Supporting core composite plate, useful as an interior fitting plate in rail vehicles, preferably as a floor, separating wall, and side walls comprises two stable outer layers and a light supporting core arranged between the outer layers Ceased DE102011009871A1 (en)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
DE3823967A1 (en) * 1988-07-15 1990-01-18 Heinz B Mader Board-shaped, planar or curved structural element of sandwich construction, in particular for use in aircraft
DE8915724U1 (en) * 1989-12-14 1991-05-16 Finkensiep, Gerd, 5810 Witten, De
EP0787578A2 (en) * 1996-02-05 1997-08-06 C.A. Greiner & Söhne Gesellschaft M.B.H. Laminated building element and method of manufacture
DE10155820A1 (en) * 2001-11-15 2003-06-05 Bombardier Transp Gmbh Railway passenger carriage body has inner and outer layers of a fiber compound material, with intermediate layers between them bonded by the fibers in a lightweight and stable structure
DE10358295A1 (en) * 2003-10-17 2005-05-19 Euro-Composites S.A. Lightweight composite material and method for its production
DE10350787A1 (en) * 2003-10-29 2005-05-25 Röhm GmbH & Co. KG Three dimensional composite component comprises a foam core which is mechanically formed while heating and at least one deformable cover layer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823967A1 (en) * 1988-07-15 1990-01-18 Heinz B Mader Board-shaped, planar or curved structural element of sandwich construction, in particular for use in aircraft
DE8915724U1 (en) * 1989-12-14 1991-05-16 Finkensiep, Gerd, 5810 Witten, De
EP0787578A2 (en) * 1996-02-05 1997-08-06 C.A. Greiner & Söhne Gesellschaft M.B.H. Laminated building element and method of manufacture
DE10155820A1 (en) * 2001-11-15 2003-06-05 Bombardier Transp Gmbh Railway passenger carriage body has inner and outer layers of a fiber compound material, with intermediate layers between them bonded by the fibers in a lightweight and stable structure
DE10358295A1 (en) * 2003-10-17 2005-05-19 Euro-Composites S.A. Lightweight composite material and method for its production
DE10350787A1 (en) * 2003-10-29 2005-05-25 Röhm GmbH & Co. KG Three dimensional composite component comprises a foam core which is mechanically formed while heating and at least one deformable cover layer

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