CH663378A5 - Multilayer planar construction element and process and device for the production thereof - Google Patents

Multilayer planar construction element and process and device for the production thereof Download PDF

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Publication number
CH663378A5
CH663378A5 CH4934/83A CH493483A CH663378A5 CH 663378 A5 CH663378 A5 CH 663378A5 CH 4934/83 A CH4934/83 A CH 4934/83A CH 493483 A CH493483 A CH 493483A CH 663378 A5 CH663378 A5 CH 663378A5
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CH
Switzerland
Prior art keywords
layer
core layer
cover
cover layers
open
Prior art date
Application number
CH4934/83A
Other languages
German (de)
Inventor
Herbert Karl Hoedl
Original Assignee
Symalit Lizenz Ag
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Publication date
Application filed by Symalit Lizenz Ag filed Critical Symalit Lizenz Ag
Priority to CH4934/83A priority Critical patent/CH663378A5/en
Publication of CH663378A5 publication Critical patent/CH663378A5/en

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Classifications

    • 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
    • B32B3/18—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 an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20—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 an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/005—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0089—Producing honeycomb structures
    • 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
    • B32B3/18—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 an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1027—Pressing using at least one press band
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/146—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers whereby one or more of the layers is 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide 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

Abstract

In the process the construction element is produced by covering an open-celled core-layer assembly (1) with cover layers (20). To obtain a strength of the construction element appropriate to the subsequent use with, at the same time, an extremely simple production process, the core-layer cells (3) are not connected to one another but are held together mechanically by cover layer material which has flowed into them or are melted. Fabrics and/or tapes can be provided in the cover layers (20), for reinforcement. <IMAGE>

Description

       

  
 



   Kern- und Deckschichten werden miteinander verbunden, indem mindestens die der Kernschicht zugewandten Seiten der Deckschichten auf solch eine Temperatur gebracht werden, dass   derthermoplastische    Kunststoff plastisch ist. Zum Beispiel durch eine Presse ausgeübter Druck auf die Deckschichten bewirkt, dass sich temperaturmässig im Schmelzbereich gehaltener Kunststoff in die offenen Zellen bzw. Elemente der Kernschicht einfliesst und einen mechanischen Verbund bzw. Verschweissung ergibt. Nach erfolgter Abkühlung besteht eine starre Verbindung zwischen jeder Zelle der Kernschicht und, bei Verwendung von nur von Deckschicht zu Deckschicht reichenden Zel  



  len, den Deckschichten. Die Haltevorrichtung kann entfernt werden.



   Bei solch einem erfindungsgemäss hergestellten Bauelement müssen die Deckschichten den grössten Teil der Belastung aufnehmen, da, wenn überhaupt, die Verbindung zwischen den Kernschichtzellen schwach ausgebildet ist. Deshalb werden in den Deckschichten verstärkende Gewebe und/oder Bänder aus z. B.   GlasfasernoderAramid-Fasernz.    B.  Kevlar vorgesehen.



  Durch solch eine Ausbildung der Deckschichten wird eine dem späteren Verwendungszweck entsprechende Festigkeit erreicht, ohne dass das Herstellungsverfahren kompliziert wird.



   Je nach Verwendungszweck kann mindestens eine Deckschicht mit Wölbungen bzw. Konturen versehen sein. Die Zellen der Kernschicht weisen dann entsprechende Länge auf.



   Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels einer Vorrichtung zur Durchführung des Verfahrens und eines entsprechend erzeugten Bauelements noch etwas näher erläutert. Es zeigt:
Fig. 1 schematisch ein Kernschichtpaket, zusammengehalten in einer Haltevorrichtung;
Fig. 2 schematisch eine Vorrichtung zur Ausführung des erfindungsgemässen Verfahrens;
Fig. 3 schematisch ein nach dem erfindungsgemässen Verfahren hergestelltes Bauelement;
Fig. 4 schematisch ein nach dem erfindungsgemässen Verfahren hergestelltes Bauelement mit einer eine Wölbung aufweisenden Deckschicht, und
Fig. 5 einen schematischen Querschnitt durch das Bauelement von Fig. 3 entlang der Linie   I   
Das in der Fig. 1 schematisch dargestellte Kernschichtpaket 1 besteht aus den als Kunststoffröhrchen 3 bzw.

  Doppelstegplatten 3' ausgebildeten Kernschichtzellen bzw. -elementen, welche mit Hilfe einer konventionellen, schematisch gezeigten Haltevorrichtung 4 zusammengehalten werden. Die Haltevorrichtung 4 ist beiderseits mit Transportgriffen 2 versehen.



   Fig. 2 zeigt eine Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens. Sie besteht aus endlosen, um die Rollen 11,   12 umlaufenden Transportbändern 18, 19.    Im Bereich der umlaufenden Transportbänder, je zwischen den entsprechenden Rollenpaaren 11 und 12, sind Heizungen 15, Pressen 16 und, je nach Heizleistung oder notwendiger Wärmeabfuhr   inner-    halb der Vorrichtung, Kühlvorrichtungen 17 vorgesehen.



   Weiter werden an den Lagern 13 und 14 Rollen aus Deckschichten 20 aufgenommen und es ist eine Zubringerplatte 21 für   Kernschichtpakete    1 vorgesehen. Das Verfahren wird in Gang gesetzt, indem die Deckschichten 20 abgezogen und zwischen die Transportbänder geführt werden und ein Kernschichtpaket 1 beidseitig abdecken. Durch die Transportbänder werden Kernschichtpaket 1 und Deckschichten schrittweise oder kontinuierlich weiterbefördert.



   Die Heizungen 15 erwärmen das thermoplastische Material.



  Durch die Presse 16, welche bei kontinuierlichem Umlauf der Transportbänder als Walzenpaar ausgebildet sein kann, erfolgt das Verbinden von Deckschichten und Kernschichtpaket. Eine Kühlvorrichtung 17 wird dann vorgesehen, wenn eine sofortige Weiterverarbeitung des Bauelementes nach dessen Ausstoss aus der Vorrichtung erwünscht ist oder wenn die Gefahr eines Wärmestaus innerhalb der Vorrichtung besteht. Das die Vorrichtung verlassende endlose Bauelement wird auf konventionelle und daher nicht näher beschriebene Art in Teile gewünschter Länge, und wenn notwendig, gewünschter Breite zerschnitten.



   Fig. 3 zeigt ein auf die oben beschriebene Weise hergestelltes Bauelement;
Fig. 4 zeigt ein weiteres Ausführungsbeispiel eines Bauelementes, dessen eine Deckschicht gewölbt ist;
Fig. 5 zeigt einen Schnitt durch das Bauelement von Fig. 3 entlang der Linie I-I.



   Dargestellt sind die als Kunststoffröhrchen 3 ausgebildeten, aufgeschnittenen Kernschichtzellen 3. Durch an ihren Enden in sie eingedrungenes Deckschichtmaterial wird das ganze Gebilde zusammengehalten. In die obere Deckschicht eingearbeitete Verstärkungsbänder 23 und eine in der untern Deckschicht eingebettete Glasfasermatte 22 verleihen dem Bauelement eine dem späteren Verwendungszweck entsprechende Festigkeit.



   Das Bauelement kann ohne weiteres aus mehreren Deck schichten aufgebaut werden. Die Vorrichtung zu dessen Herstel lung muss entsprechend modifiziert werden, die grundsätzliche
Anordnung der Vorrichtungselemente bleibt jedoch dieselbe.



   Weiter ist es denkbar, in die Deckschichten Leitungen irgend.



   welcher Art einzulassen. 



  
 



   Core and cover layers are connected to one another by bringing at least the sides of the cover layers facing the core layer to such a temperature that the thermoplastic plastic is plastic. For example, pressure exerted on the cover layers by a press has the effect that plastic temperature-controlled in the melting range flows into the open cells or elements of the core layer and results in a mechanical bond or welding. After cooling, there is a rigid connection between each cell of the core layer and, when using only cell extending from top layer to top layer



  len, the top layers. The holding device can be removed.



   With such a component produced according to the invention, the cover layers have to absorb the greatest part of the load, since the connection between the core layer cells is weak, if at all. Therefore reinforcing fabrics and / or tapes made of z. E.g. glass fibers or aramid fibers. B. Kevlar provided.



  Such a design of the cover layers achieves a strength corresponding to the later intended use without the manufacturing process being complicated.



   Depending on the intended use, at least one top layer can be provided with curvatures or contours. The cells of the core layer then have a corresponding length.



   The invention is explained in more detail below on the basis of an exemplary embodiment of a device for carrying out the method and a correspondingly generated component. It shows:
Figure 1 shows schematically a core layer package, held together in a holding device.
2 shows schematically an apparatus for carrying out the method according to the invention;
3 schematically shows a component produced by the method according to the invention;
4 schematically shows a component produced by the method according to the invention with a cover layer having a curvature, and
5 shows a schematic cross section through the component from FIG. 3 along the line I.
The core layer package 1 shown schematically in FIG. 1 consists of the plastic tubes 3 or

  Double-wall sheets 3 'formed core layer cells or elements which are held together with the aid of a conventional, schematically shown holding device 4. The holding device 4 is provided on both sides with transport handles 2.



   2 shows a device for carrying out the method according to the invention. It consists of endless conveyor belts 18, 19 revolving around the rollers 11, 12. In the region of the revolving conveyor belts, depending on the corresponding roller pairs 11 and 12, there are heaters 15, presses 16 and, depending on the heating output or necessary heat dissipation within the Device, cooling devices 17 provided.



   Rolls of cover layers 20 are also received on the bearings 13 and 14 and a feeder plate 21 is provided for core layer packages 1. The process is started by pulling off the cover layers 20 and guiding them between the conveyor belts and covering a core layer package 1 on both sides. The core layer package 1 and cover layers are conveyed step by step or continuously through the conveyor belts.



   The heaters 15 heat the thermoplastic material.



  The press 16, which can be designed as a pair of rollers when the conveyor belts circulate continuously, connects the cover layers and core layer package. A cooling device 17 is provided if immediate further processing of the component after its ejection from the device is desired or if there is a risk of heat build-up inside the device. The endless component leaving the device is cut into parts of the desired length and, if necessary, the desired width in a conventional and therefore unspecified manner.



   3 shows a component produced in the manner described above;
Fig. 4 shows a further embodiment of a component whose top layer is curved;
Fig. 5 shows a section through the component of Fig. 3 along the line I-I.



   Shown are the sliced core layer cells 3 designed as plastic tubes 3. The entire structure is held together by cover layer material which has penetrated into them at their ends. Reinforcement tapes 23 incorporated into the upper cover layer and a glass fiber mat 22 embedded in the lower cover layer give the component a strength that corresponds to the later use.



   The component can easily be constructed from several cover layers. The device for its manufacture must be modified accordingly, the basic one
However, the arrangement of the device elements remains the same.



   It is also conceivable that any lines in the cover layers.



   of what kind to get involved.

Claims (11)

PATENTANSPRÜCHE 1. Verfahren zur Herstellung eines mehrschichtigen, flächigen Bauelementes, dadurch gekennzeichnet, dass eine offenzellige Kernschicht zwischen zwei mindestens teilweise aus thermoplastischem Kunststoff bestehenden Deckschichten (20) gebracht wird und dass auf die den offenen Zellen abgewandten Seiten der Deckschichten (20), deren Kunststoffanteile mindestens an ihren den offenen Zellen zugewandten Seiten sich temperaturmässig im Schmelzbereich des jeweiligen Thermoplastes befinden, solch ein Druck ausgeübt wird, dass thermoplastischer Kunststoff in die offenen Zellen eindringt und nach dem Erstarren das Ganze zusammenhält.  PATENT CLAIMS 1. A method for producing a multi-layer, flat component, characterized in that an open-cell core layer between two at least partially made of thermoplastic cover layers (20) is placed and that on the sides of the cover layers (20) facing away from the open cells, the plastic components at least On their sides facing the open cells, the temperature is in the melting range of the respective thermoplastic, such pressure is exerted that thermoplastic material penetrates the open cells and, after solidification, holds the whole thing together. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die offenzellige Kernschicht aus paketweise zusammengefassten Röhrchen (3) oder offenen, Kammern bildenden Stegen (3') besteht.  2. The method according to claim 1, characterized in that the open-cell core layer consists of bundled tubes (3) or open, chamber-forming webs (3 '). 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die parallel zueinander verlaufenden Röhrchen (3) oder Stege (3') in ihrer gegenseitigen Lage mit Hilfe einer Haltevorrichtung (4) fixiert und zwischen den Deckschichten (20) positioniert werden.  3. The method according to claim 2, characterized in that the mutually parallel tubes (3) or webs (3 ') are fixed in their mutual position with the aid of a holding device (4) and positioned between the cover layers (20). 4. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Deckschichten (20) erwärmt werden, nachdem sie in Kontakt mit den offenen Zellen gebracht worden sind.  4. The method according to any one of the preceding claims, characterized in that the cover layers (20) are heated after they have been brought into contact with the open cells. 5. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durch parallel zueinander angeordnete Lager (13, 14), zur Aufnahme von Rollen aus Deckschichtbändern, parallel zueinander angeordnete, über je zwei Rollen (11,12) umlaufende, endloseTransportbänder (18,19) zum Abziehen der Deckschichtbänder von der Rolle und zum Fördern der Deckschichtbänder und der zwischen den Deckschichtbändern angeordneten Kernschicht, und durch Mittel (15, 16) zum Aufbringen von Wärme und Druck auf die Deckschichtbänder und Kernschicht, die so zwischen jedem jeweils ein Transportband (18,19) tragenden Rollenpaar (11, 12) angeordnet sind, dass die Verbindung der Kernschicht (1) und den Deckschichtbändern (20) im Bereich der umlaufenden Transportbänder (18, 19) erfolgt.  5. Apparatus for carrying out the method according to claim 1, characterized by bearings (13, 14) arranged parallel to one another, for receiving rolls of cover layer tapes, endless conveyor belts (18, 19) arranged parallel to one another and rotating over two rolls (11, 12) ) for pulling off the cover layer tapes from the roll and for conveying the cover layer tapes and the core layer arranged between the cover layer tapes, and by means (15, 16) for applying heat and pressure to the cover layer tapes and core layer, which thus each have a conveyor belt (18 , 19) carrying pair of rollers (11, 12) are arranged such that the connection of the core layer (1) and the cover layer belts (20) takes place in the region of the circulating conveyor belts (18, 19). 6. Mehrschichtiges, flächigesBauelement, hergestellt gemäss Verfahren nach Anspruch 1.  6. Multi-layer, flat component, produced according to the method of claim 1. 7. Mehrschichtiges, flächiges Bauelementnach Anspruch 6, dadurch gekennzeichnet, dass die Zellen der Kernschicht röhrenförmig sind und parallel zueinander verlaufen.  7. Multi-layer, flat component according to claim 6, characterized in that the cells of the core layer are tubular and run parallel to one another. 8. Mehrschichtiges, flächiges Bauelement nach Anspruch7, dadurch gekennzeichnet, dass mindestens eine Deckschicht Wölbungen aufweist und dass die Zellen entsprechend den Wölbungen verschiedene Längen aufweisen.  8. Multi-layer, flat component according to claim 7, characterized in that at least one cover layer has curvatures and that the cells have different lengths corresponding to the curvatures. 9. Mehrschichtiges, flächiges Bauelement nach einem der Ansprüche 6, 7 oder 8, dadurch gekennzeichnet, dass die Zellen der Kernschicht aus Kunststoff, Steinwollefaser, Aluminium oder einer Kombination dieser Materialien bestehen.  9. Multi-layer, flat component according to one of claims 6, 7 or 8, characterized in that the cells of the core layer consist of plastic, rock wool fiber, aluminum or a combination of these materials. 10. Mehrschichtiges, flächiges Bauelement nach Anspruch 6, dadurch gekennzeichnet, dass mindestens eine Deckschicht aus mit Geweben und/oder Bändern verstärkten thermoplastischem Kunststoff besteht.  10. Multi-layer, flat component according to claim 6, characterized in that at least one cover layer consists of reinforced with fabrics and / or tapes thermoplastic material. 11. Mehrschichtiges, flächiges Bauelement nach Anspruch 10, dadurch gekennzeichnet, dass das Gewebe aus Glasfasern und/oder aus Aramid- oder Kohlenstoff-Fasern besteht.  11. Multi-layer, flat component according to claim 10, characterized in that the fabric consists of glass fibers and / or of aramid or carbon fibers. Die vorliegende Erfindung betrifft ein Verfahren zur Herstel lang eines mehrschichtigen, flächigen Bauelementes, eine Vorrichtung zur Durchführung des Verfahrens und ein mehrschichti- ges, flächiges Bauelement hergestellt nach dem Verfahren.  The present invention relates to a method for producing a multilayer, flat component, a device for carrying out the method and a multilayer, flat component produced by the method. In der Regel weisen bekannte Bauelemente der genannten Art eine von Deckschichten bedeckte offenzellige Kernschicht auf.  As a rule, known components of the above Kind of an open-cell core layer covered by cover layers. Die Kernschicht wird häufig als wabenartige Struktur mit senkrecht zu den Deckschichten verlaufenden Zellen ausgebil det. Die Herstellung erfolgt, indem wellenförmige Kunststoff streifen, Kunststoffröhrchen oder ähnliches in geeigneter Weise miteinander verbunden werden.  The core layer is often designed as a honeycomb structure with cells running perpendicular to the cover layers. The production takes place in that corrugated plastic strips, plastic tubes or the like are connected to one another in a suitable manner. Die in der Regel aus Kunststoff bestehenden Deckschichten dienen dem Verschliessen der offenen Zellen der Kernschicht und werden mit dieser verklebt. ¯¯ Wird die Verbindung zwischen den die Kernschicht bildenden Elementen mit Hilfe von Klebe- oder Giessharzen vorgenom men, so ist die Verwendungsfähigkeit des Bauelementes wegen der vergleichsweise geringen Belastbarkeit solcher Verbindungen eingeschränkt. Überdies sind die vorzunehmenden Arbeiten, z. B. für das Durchtränken der zusammengestellten Mittel schicht mit entsprechenden Klebemitteln, für das Entfernen überschüssigen Klebemittels sowie das Bestreichen von Kern und Deckschichten mit Klebemittel, speziell im Hinblick auf möglichst grosse Belastbarkeit des Bauelements recht aufwendig.  The cover layers, which are generally made of plastic, serve to close the open cells of the core layer and are glued to it. ¯¯ Will the connection between those forming the core layer Elements vorgenom with the help of adhesive or casting resin, the usability of the component is limited because of the comparatively low load capacity of such connections. In addition, the work to be performed, e.g. B. for impregnating the compiled layer with appropriate adhesives, for removing excess adhesive and coating the core and outer layers with adhesive, especially in view of the greatest possible resilience of the component quite expensive. Zweck der vorliegenden Erfindung ist es nun, ein Verfahren zur Herstellung eines Bauelementes zu schaffen, bei welchem diese Nachteile überwunden sind.  The purpose of the present invention is now to create a method for producing a component in which these disadvantages are overcome. Dazu zeichnet sich das Verfahren erfindungsgemäss dadurch aus, dass eine offenzellige Kernschicht zwischen zwei mindestens teilweise aus thermoplastischem Kunststoff bestehenden Deck schichten gebracht wird und dass auf die den offenen Zellen abgewandten Seiten der Deckschichten, deren Kunststoffanteile mindestens an ihren den offenen Zellen zugewandten Seiten sich temperaturmässig im Schmelzbereich des jeweiligen Thermo- plasts befindet, solch ein Druck ausgeübt wird, dass thermopla stischer Kunststoff in die offenen Zellen eindringt und nach dem Erstarren das Ganze mechanisch zusammenhält und/oder mit- einander verschmilzt.  For this purpose, the method according to the invention is characterized in that an open-cell core layer is placed between two at least partially made of thermoplastic cover layers and that on the sides of the cover layers facing away from the open cells, the plastic components of which, at least on their sides facing the open cells, change in temperature Melting range of the respective thermoplastic, such pressure is exerted that thermoplastic plastic penetrates the open cells and, after solidification, mechanically holds the whole together and / or melts together. Erfindungsgemäss wird die Kernschicht aus vorgefertigten, handelsüblichen Elementen gebildet, indem diese mit Hilfe einer Haltevorrichtung, eine wabenartige Struktur bildend, zu Pake ten zusammengefasst werden. Eine Verbindung der Elemente kann unterbleiben, wird sich jedoch, damit eine möglichst einfa che Haltevorrichtung verwendet werden kann, empfohlen. An solch eine Verbindung werden dann nur geringste Ansprüche gestellt, da nur ein gegenseitiges Vertuschen der die Kernschicht bildenden Elemente in der Haltevorrichtung verhindert werden soll.  According to the invention, the core layer is formed from prefabricated, commercially available elements by using a Holding device, forming a honeycomb structure, can be combined into packages. A connection of the elements can be omitted, but is recommended so that the simplest possible holding device can be used. Very few demands are then placed on such a connection, since only a mutual covering up of the elements forming the core layer in the holding device is to be prevented. Als Elemente können Röhrchen mit verschiedensten Quer schnitten oder Doppelstegplatten, z. B. aus Kunststoff oder Aluminium verwendet werden, weitere Materialien wie Steinwollfaser oder Schaumstoff eignen sich speziell zu Isolierzwekken. Die Haltevorrichtung kann als um die Pakete von Kern schichtelementen umlaufendes Band mit daran befestigten, geeigneten Transportgriffen oder Halteelementen ausgeführt sein.  As elements, tubes with different cross-sections or double-wall sheets, z. B. made of plastic or Aluminum is used, other materials such as rock wool fiber or foam are particularly suitable for insulation purposes. The holding device can be designed as a band around the packages of core layer elements with attached, suitable transport handles or holding elements. Die Deckschichten bestehen mindestens teilweise aus thermoplastischem Kunststoff.  The cover layers consist at least partially of thermoplastic material.
CH4934/83A 1983-09-09 1983-09-09 Multilayer planar construction element and process and device for the production thereof CH663378A5 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338461A2 (en) * 1988-04-20 1989-10-25 Wilhelmi Werke GmbH &amp; Co.KG Method of making a panel-like, sound-absorbing element
EP0400599A2 (en) * 1989-05-30 1990-12-05 Phillips Petroleum Company Composite cellular sandwich structure
DE4017852A1 (en) * 1990-06-02 1991-12-05 Messerschmitt Boelkow Blohm SURFACE OBJECT WITH A HONEYCOMB STRUCTURE AND METHOD FOR THE PRODUCTION THEREOF
EP0532829A1 (en) * 1991-09-14 1993-03-24 EUROCOPTER DEUTSCHLAND GmbH Flat object with honeycomb structure
EP0550078A1 (en) * 1992-01-03 1993-07-07 3P-Consulting Inc. Method for manufacturing a structural member and structural member formed by using said method
WO1994025258A1 (en) * 1993-05-05 1994-11-10 Tubus Bauer Gmbh Process for producing a honeycomb structure and honeycomb structure so produced
EP0646622A2 (en) * 1993-09-21 1995-04-05 Sekisui Kagaku Kogyo Kabushiki Kaisha Plastic foam material composed of thermoplastic resin and silane-modified thermoplastic resin and method for making same
EP0695232A1 (en) * 1993-12-27 1996-02-07 Tolo, Incorporated Structural element with interlocking ribbing

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338461A3 (en) * 1988-04-20 1991-07-31 Wilhelmi Werke GmbH &amp; Co.KG Method of making a panel-like, sound-absorbing element
EP0338461A2 (en) * 1988-04-20 1989-10-25 Wilhelmi Werke GmbH &amp; Co.KG Method of making a panel-like, sound-absorbing element
EP0400599A2 (en) * 1989-05-30 1990-12-05 Phillips Petroleum Company Composite cellular sandwich structure
EP0400599A3 (en) * 1989-05-30 1991-07-03 Phillips Petroleum Company Composite cellular sandwich structure
EP0465719B1 (en) * 1990-06-02 1997-02-05 Eurocopter Deutschland Gesellschaft mit beschränkter Haftung Flat product with honeycomb structure and method of production thereof
DE4017852A1 (en) * 1990-06-02 1991-12-05 Messerschmitt Boelkow Blohm SURFACE OBJECT WITH A HONEYCOMB STRUCTURE AND METHOD FOR THE PRODUCTION THEREOF
EP0465719A2 (en) * 1990-06-02 1992-01-15 Eurocopter Deutschland Gesellschaft mit beschränkter Haftung Flat product with honeycomb structure and method of production thereof
EP0532829A1 (en) * 1991-09-14 1993-03-24 EUROCOPTER DEUTSCHLAND GmbH Flat object with honeycomb structure
EP0550078A1 (en) * 1992-01-03 1993-07-07 3P-Consulting Inc. Method for manufacturing a structural member and structural member formed by using said method
WO1994025258A1 (en) * 1993-05-05 1994-11-10 Tubus Bauer Gmbh Process for producing a honeycomb structure and honeycomb structure so produced
US5683782A (en) * 1993-05-05 1997-11-04 Tubus Bauer Gmbh Process for producing of a honeycomb structure and honeycomb structure so produced
EP0646622A2 (en) * 1993-09-21 1995-04-05 Sekisui Kagaku Kogyo Kabushiki Kaisha Plastic foam material composed of thermoplastic resin and silane-modified thermoplastic resin and method for making same
EP0646622A3 (en) * 1993-09-21 1996-11-20 Seikisui Chemical Co Ltd Plastic foam material composed of thermoplastic resin and silane-modified thermoplastic resin and method for making same.
EP0695232A1 (en) * 1993-12-27 1996-02-07 Tolo, Incorporated Structural element with interlocking ribbing
EP0695232A4 (en) * 1993-12-27 1997-05-28 Tolo Inc Structural element with interlocking ribbing

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