DE2302542A1 - SANDWICH MATERIAL, COMPONENT MANUFACTURED FROM IT, METHOD FOR MANUFACTURING THE SANDWICH MATERIAL AND DEVICE FOR CARRYING OUT THE PROCESS - Google Patents
SANDWICH MATERIAL, COMPONENT MANUFACTURED FROM IT, METHOD FOR MANUFACTURING THE SANDWICH MATERIAL AND DEVICE FOR CARRYING OUT THE PROCESSInfo
- Publication number
- DE2302542A1 DE2302542A1 DE2302542A DE2302542A DE2302542A1 DE 2302542 A1 DE2302542 A1 DE 2302542A1 DE 2302542 A DE2302542 A DE 2302542A DE 2302542 A DE2302542 A DE 2302542A DE 2302542 A1 DE2302542 A1 DE 2302542A1
- Authority
- DE
- Germany
- Prior art keywords
- core layer
- sandwich material
- material according
- resin
- layers
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 8
- 239000012792 core layer Substances 0.000 claims description 45
- 229920005989 resin Polymers 0.000 claims description 31
- 239000011347 resin Substances 0.000 claims description 31
- 239000010410 layer Substances 0.000 claims description 28
- 239000006260 foam Substances 0.000 claims description 18
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 238000005470 impregnation Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
-
- 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
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
-
- 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 shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- 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
- B32B5/245—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 another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5875—Seat coverings attachments thereof by adhesion, e.g. gluing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/68—Seat frames
- B60N2/686—Panel like structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Laminated Bodies (AREA)
Description
PATENTANWÄLTEPATENT LAWYERS
Dr.-lng. Wolff H.BartelsDr.-lng. Wolff H Bartels
Dipl.-Chem. Dr. Brandes Dr.-lng. Held Dipl.-Phys. WolffDipl.-Chem. Dr. Brandes Dr.-lng. hero Dipl.-Phys. Wolff
Reg.-Nr. 123 850 7Stuttgart 1, Lange StraßeRegistration number. 123 850 7 Stuttgart 1, Lange Strasse
Tel. (0711) 29 6310 u. 29 72Tel. (0711) 29 6310 and 29 72
Telex 07 22312 (patwo d)Telex 07 22312 (patwo d)
Telegrammadresse:Telegram address:
tlx 07 22312 wolf f Stuttgarttlx 07 22312 wolf f Stuttgart
Postscheckkonto Stuttgart 7211 BLZ 600100 70 Deutsche Bank AG, 14/286 BLZ 600700 70Postal check account Stuttgart 7211 BLZ 600 100 70 Deutsche Bank AG, 14/286 BLZ 600 700 70
Bürozeit: 8-12 Uhr, 13-16.30 Uhr außer samstagsOffice hours: 8 a.m. to 12 p.m., 1 p.m. to 4.30 p.m. except Saturdays
19.12.1972/3322 rlk19.12.1972 / 3322 rlk
Firma Gerhard Kuttler, 7U01 Dußlingen (Baden-Württemberg)Company Gerhard Kuttler, 7U01 Dußlingen (Baden-Württemberg)
Sandwich-Material, aus ihm hergestelltes Bauteil, Verfahren zur Herstellung des Sandwich-Materials und Vorrichtung zur Durchführung des VerfahrensSandwich material, component made from it, method for producing the sandwich material and device for carrying out the method
Telefonische Auskünfte und Aufträge sind nur nach schriftlicher Bestätigung verbindlichTelephone information and orders are only binding after written confirmation
Die Erfindung betrifft ein Sandwich-Material, insbesondere zur Herstellung von Bauteilen mit gekrümmter Oberfläche, bestehend aus mindestens einer Hohlräume bildenden Kernschicht und mindestens einer an dieser anliegenden, zugfesten Deckschicht, sowie ein aus einem solchen Material hergestelltes Bauteil, ein Verfahren zur Herstellung des Materials und eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a sandwich material, in particular for the production of components with a curved surface, consisting of at least one core layer that forms cavities and at least one top layer with high tensile strength resting against it, and a component produced from such a material, a method for producing the material and a device for carrying out the method.
Bekannte Sandwich-Materialien, deren Kernschicht aus einem Aluminium-Wabenmaterial oder Hartschaum besteht, zeichnen sich zwar durch ein geringes Gewicht aus. Die Formgebung ist aber bei einem Sandwich-Material mit einer Kernschicht aus Aluminium-Wabenmaterial sehr aufwendig, da hierzu eine spanabhebende Bearbeitung des Wabenmaterials erforderlich ist. Sandwich-Material mit einer Kernschicht aus Hartschaum ist hingegen mit dem Nachteil behaftet, daß die erzielbare Festigkeit nicht so groß ist wie bei der Verwendung von Aluminium-Wabenmaterial, was in erster Linie darauf zurückzuführen ist, daß die Deckschichten aus einer'verdichteten Oberflächenschicht des Hartschaumes bestehen.Well-known sandwich materials, the core layer of which consists of an aluminum honeycomb material or rigid foam, draw is characterized by its low weight. In the case of a sandwich material, however, the shape is with a core layer Made of aluminum honeycomb material very expensive, since this requires machining of the honeycomb material is. Sandwich material with a core layer made of rigid foam, however, has the disadvantage that the achievable Strength is not as great as when using aluminum honeycomb material, which is primarily due to the fact that the cover layers consist of a compacted surface layer of the rigid foam.
Der Erfindung liegt die Aufgabe zugrunde, ein Sandwich-Material zu schaffen, das hinsichtlich der Formgebung keine Schwierigkeiten bereitet, dennoch aber eine hohe Festigkeit erreichen läßt. Ausgehend von einem Sandwich-Material der eingangs genannten Art ist diese Aufgabe erfindungsgemäß dadurch gelöst, daß die Kernschicht elastisch komprimierbar ist.The invention is based on the object of creating a sandwich material that has no difficulties in terms of shape prepares, but can still achieve a high level of strength. Starting from a sandwich material of the type mentioned at the beginning Art this object is achieved according to the invention in that the core layer is elastically compressible.
Infolge der elastischen Komprimierbarkeit der Kernschicht kann nicht nur das Sandwich-Material sehr leicht verformt und damit auch ohne Schwierigkeiten in die gewünschte Form gebracht werden. Es kann auch in einfacher Weise durch Komprimieren seine Stärke verringert werden, wodurch zusätzlich die Schichtdicke oder die Verdichtung verschieden groß gewählt und damit an unterschiedliche Forderungen angepaßt werden kann. Weiterhin ist die elastische Kompressibilität auch bei der Herstellung des Sandwich-As a result of the elastic compressibility of the core layer, Not only can the sandwich material be deformed very easily and thus brought into the desired shape without difficulty. Its thickness can also be reduced in a simple manner by compressing it, which in addition increases the layer thickness or the Compression selected different sizes and can thus be adapted to different requirements. Furthermore, the elastic Compressibility also in the manufacture of the sandwich
409833/0874409833/0874
Materials während des Tränkens mit einem Kunstharz und bei derMaterial during soaking with a synthetic resin and during the
Verteilung des Kunstharzes im Sandwich-Material sowie bei der Einstellung des Harzgehaltes der Kernschicht von erheblichem Vorteil.Distribution of the synthetic resin in the sandwich material and when adjusting the resin content of the core layer is considerable Advantage.
Als Kernschicht ist beispielsweise ein Weichschaum-Material vorteilhaft. Aber auch andere Materialien, wie z.B. gepreßte Perlonwolle, Wollfilz oder ein Metallgestricke können mit Vorteil verwendet werden.A flexible foam material, for example, is advantageous as the core layer. But also other materials, such as pressed Perlon wool, wool felt or a metal knitted fabric can be used with advantage.
Als Deckschicht wird vorteilhafterweise eine Matte, beispielsweise eine Glasfasermatte, verwendet, da diese leicht zu verarbeiten ist und eine im Vergleich zu ihrem Gewicht hoheA mat, for example a fiberglass mat, because it is easy to work with and is high compared to its weight
Festigkeit ergibt, .iber auch beispielsweise Glasrovings sind gut geeignet.Strength results, are also, for example, glass rovings well suited.
In der Regel wird man die Kernschicht zwischen zwei Deckschichten legen. Es kann aber auch die eine der beiden Deckschichten Teilbereiche der Kernschicht unbedeckt lassen. In solchen einseitig nicht bedeckten Bereichen erhält man ein elastisches Verhalten des Sandwich-Materials auch nach der Verarbeitung, so daß diese Bereiche beispielsweise als federnde Bereiche oder Polster verwendet werden können. Ferner ist es selbstverständlich möglich, mehrere Kernschichten mit jeweils einer dazwischen liegenden Deckschicht übereinander anzuordnen.As a rule, the core layer will be placed between two outer layers. But it can also be one of the two top layers Leave parts of the core layer uncovered. A is obtained in such areas that are not covered on one side elastic behavior of the sandwich material even after processing, so that these areas, for example, as resilient Areas or pads can be used. Furthermore, it is of course possible to have several core layers each to be arranged one above the other with an intermediate cover layer.
Sofern nach der Formgebung das Sandwich-Material steif sein soll, wie dies bei den meisten Anwendungsfällen erforderlich ist, braucht man nur dafür Sorge zu tragen, daß alle Schichten ein aushärtbares Kunstharz enthalten. Nach dem Aushärten gibt dieses Kunstharz nicht nur den Deckschichten, sondern auch der Kernschicht die erforderliche Steifigkeit.If the sandwich material is to be stiff after shaping, as is necessary in most applications you only need to ensure that all layers contain a hardenable synthetic resin. After hardening there this synthetic resin not only gives the outer layers, but also the core layer the required rigidity.
Der Erfindung liegt ferner die Aufgabe zugrunde, ein Verfahren zur Herstellung des erfindungsgemäßen Sandwich-Materials zu schaffen, das eine besonders rationelle Herstellung dieses Materials ermöglicht. Diese Aufgabe ist erfindungsgemäß da-The invention is also based on the object of a method for producing the sandwich material according to the invention to create that enables a particularly efficient production of this material. According to the invention, this task is there-
409833/0874409833/0874
dadurch gelöst, daß die Kernschicht mit flüssigem Harz getränkt und anschließend zusammen mit den Deckschichten durch eine die Kernschicht komprimierende Druckzone_geführt wird. Hierdurch wird selbsttätig eine gleichmäßige Verteilung des flüssigen Kunstharzes sowie die zur Erzielung des gewünschten Harzgehaltes der Kernschicht erforderliche Ausquetschung des Materials bewirkt.solved in that the core layer is impregnated with liquid resin and then through together with the cover layers a pressure zone compressing the core layer will. This automatically ensures a uniform distribution of the liquid synthetic resin as well as that to achieve the desired Resin content of the core layer causes the necessary squeezing of the material.
Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens wird ferner die Kernschicht vor dem Tränken komprimiert und während des Tränkens läßt man die Kernschicht sich wieder ausdehnen. Hierdurch wird in äußerst einfacher Weise eine gute und rasche Durchtränkung erzielt.In a preferred embodiment of the method according to the invention, the core layer is also applied before the impregnation compressed and while soaking, the core layer is allowed to expand again. This makes it extremely easy Way a good and quick impregnation is achieved.
Die.ferner der Erfindung zugrunde liegende Aufgabe, eine einfach ausgebildete Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens zu schaffen, ist erfindungsgemäß dadurch gelöst, daß ein Harzbad, durch das die Kernschicht hindurchführbar ist, ein erster Satz von Quetschrollen an der Eintrittstelle der Kernschicht in das Harzbad, eine die Deckschichten hinter dem Harzbad in Anlage an die Kernschicht bringende Zuführeinrichtung und ein zweiter Satz von Quetschrollen an einer Stelle hinter dem Harzbad vorgesehen sind, an der die Deckschichten an der Kernschicht anliegen. Eine solche Vorrichtung ermöglicht die Herstellung des Sandwich-Materials im Durchlaufverfahren, weshalb sie nicht nur wegen ihres einfachen konstruktiven Aufbaus, sondern auch wegen ihrer hohen Leistungsfähigkeit von Vorteil ist.The problem on which the invention is also based is a simple one creating a trained device for performing the method according to the invention is achieved according to the invention by that a resin bath through which the core layer is passable, a first set of nip rollers at the point of entry the core layer into the resin bath, one that brings the cover layers behind the resin bath into contact with the core layer Feeder and a second set of squeegee rollers are provided at a point after the resin bath at which the outer layers are in contact with the core layer. Such a device enables the sandwich material to be produced in a continuous process, which is why they are not just because of their simple structural design, but also because of their high performance is advantageous.
Um auch die Führungseinrichtung für die Deckschichten möglichst einfach zu gestalten, ist bei einer bevorzugten Ausführungsform mindestens je eine Rolle des ersten und zweiten Satzes als Führungsrolle für die bandförmige Deckschicht ausgebildet.In order to also make the guide device for the cover layers as simple as possible, in a preferred embodiment at least one roller each of the first and second set is designed as a guide roller for the strip-shaped cover layer.
AO9833/0874AO9833 / 0874
Selbstverständlich ist es auch möglich, anstelle einer Tränkung der Kernschicht mit Harz in einem Bad das Harz aufzusprühen. In einem solchen Falle kann auch ein pulverförmiges Harz ohne Schwierigkeiten verwendet werden.It is of course also possible, instead of impregnating the core layer with resin, to spray the resin on in a bath. In such a case, a powdery resin can also be used without difficulty.
Im folgenden ist die Erfindung anhand einer Ausführungsform einer Vorrichtung zur Herstellung einer Ausführungsform des erfindungsgemäßen Sandwich-Materials sowie eines Teils einer Presse im einzelnen erläutert. Die einzige Figur zeigt in schematischer Darstellung einen Längsschnitt durch die Vorrichtung und einen Teil der Preßform der Presse.The following is the invention in terms of one embodiment an apparatus for producing an embodiment of the Sandwich material according to the invention and part of a press explained in detail. The only figure shows in schematic representation of a longitudinal section through the device and part of the mold of the press.
Zur Herstellung einer Schale, bei der es sich im Ausführungsbeispiel um eine Schale für einen Kraftfahrzeug-Schalensitz handelt, wird zunächst ein als Ganzes mit 1 bezeichnetes Sandwich-Material hergestellt, das aus awei Deckschichten 2 und 3 sowie einer zwischen diesen liegenden Kernschicht 4 besteht. Als Deckschichten 2 und 3 dienen im Ausführungsbeispiel je eine Glasfasermatte, als Kernschicht 4 ein Weichschaum, welcher elastisch komprimierbar ist, d.h. sich unter Druck kcnpr5.rii.eren läßt- und ^ach Beendigung dar Drnckbelastung wieder ausdehnt „_ "__ ~~J ~ "~ "__To produce a shell, which in the exemplary embodiment is a shell for a motor vehicle shell seat, a sandwich material, designated as a whole by 1, is first produced, which consists of awei cover layers 2 and 3 and a core layer 4 between them. As cover layers 2 and 3 are used in the exemplary embodiment each have a glass fiber mat, as the core layer 4, a soft foam which is resiliently compressible, that is, under pressure kcnpr5.rii.eren läßt- and ^ alas termination represents Drnckbelastung again expands "_" __ ~~ J ~ "~" __
Im Ausführungsbeispiel sind sowohl die Kernschicht U als auch die beiden Deckschichten 2 und 3 mit einem flüssigen Kunstharz getrSnkt, Dieses Kunstharz verbindet nach dem Aushärten die beiden Deckschichten mit der Kernschicht, hält die Deckschichten und die Kernschicht in der gewünschten Form und gibt der Kernschicht außerdem die notwendige Steifigkeit.In the exemplary embodiment, both the core layer U and the two cover layers 2 and 3 are impregnated with a liquid synthetic resin. This synthetic resin connects the two outer layers with the core layer, keeps the outer layers and the core layer in the desired shape and gives the core layer also the necessary rigidity.
Zur· Farbteilung des Sandwich-Materials 1 wird die Kernschicht H ir, Fe rm eirer Schaumstoff bahn U1 einer als Ganzes mit 5 bez: .l·.'.1":) -'en Vorrichtung zur Herstellung a&s Sandwich-Matt^ials i Sv.i=;s;?''; rt, DIs Verrichtung 5 weist ein Harzbad 6 auf, das wäh- vr*:'. -- F' Triebe rait iQssigem Kunstharz, gefüllt ist. DieFor color division of the sandwich material 1, the core layer H ir, Fe rm eirer foam web U 1 is a whole with 5 denoting .l ·. '. ? 1 ":) -'en apparatus for producing a & s sandwich Matt IALS ^ i = Sv.i; s; ''; rt, DIs performing 5 has a resin bath 6, the currency vr *: '- F. The shoots are made of solid synthetic resin that is filled
4 C 2 ί 3 3 / C 8 7 44 C 2 ί 3 3 / C 8 7 4
Schaumstoffbahn 4f wird, wie die Figur zeigt, durch das Harzbad 6 hindurchgeführt, um. sie mit dent Kunstharz zu tränken.Foam web 4 f is, as the figure shows, passed through the resin bath 6 to. soak them with dent resin.
An der Eintrittsstelle der Schaumstoffbahn U* in das Harzbad 6 ist ein erster Satz Quetschrollen 7 angeordnet, die zwischen sich einen Spalt bilden, durch den die Schaumstoffbahn 41 hindurchgeführt wird. Der Spalt ist so eingestellt, daß die Schaumstoff bahn 41 komprimiert wird. Um letztere komprimiert zu h alten, bis sie in das Harzbäd 6 eintaucht ,und außerdem die Schaumstoff bahn nach unten zum Harzbad hin umzulenken, ist parallel zu den Quetschrollen 7 liegend eine zusätzliche Rolle angeordnet, welche zusammen mit der unteren Quetschrolle 7 einen Preßspalt bildet und außerdem die Schaumstoffbahn 4' nach dem Austreten aus dem Spalt zwischen den beiden Quetschrollen 7 nach unten hin zum Harzbad 6 umlenkt.At the point of entry of the foam web U * into the resin bath 6, a first set of squeezing rollers 7 is arranged, which between them form a gap through which the foam web 4 1 is passed. The gap is set so that the foam web 4 1 is compressed. In order to keep the latter compressed until it is immersed in the resin bath 6, and also deflect the foam sheet down to the resin bath, an additional roller is arranged lying parallel to the squeeze rollers 7, which together with the lower squeegee roller 7 forms a press nip and in addition, after exiting the gap between the two squeezing rollers 7, the foam web 4 ′ deflects downwards towards the resin bath 6.
Nach dem Eintritt in das Harzbad 6 dehnt sich die Schaumstoffbahn U' wieder aus, wobei sie sich mit dem Harz innerhalb sehr kurser Zeit vollsaugt. Die Schaumstoffbahn H* kann deshalb schon wieder nach kurzer Zeit aus dem Härzbad 6 herausgeführt werden.' Hierzu ist im Bereich des Austritts aus dem Bad eine Umlenk fläche vorgesehen, welche ^sich_ parallel. _ zur .zusätzlichen Rolle 8 erstreckt.After entering the resin bath 6, the foam web U 'expands again, with the resin inside very short time. The foam sheet H * can therefore be led out of the resin bath 6 again after a short time. ' For this purpose is in the area of the exit from the Bath a deflection surface provided, which ^ is_ parallel. _ to the .additional Roll 8 extends.
Nach dem Austritt aus dem Harzbad 6 wird die Schaumstoffbahn 4' einem zweiten Quetschrollenpaar zugeführt. In den Spalt zwischen den beiden Quetschrollen 10 dieses zweiten Quetschrollenpaares werden auch zwei Glasgewebebahnen 2* bzw. 3* eingeführt, welche von Vorratswickeln 12 und 13 abgezogen und von oben bzw. unten her an die Schaumstoffbahn 1J * nach deren Austritt aus dem Harzbad 6 herangeführt werden. Im Ausführungsbeispiel dient die obere Qaetschrolle 7 gleichzeitig als Uinlenkrolle für die die obsj^e Deckschicht 2 bildende Glasgewebebahn 2 ·.After exiting the resin bath 6, the foam web 4 'is fed to a second pair of squeezing rollers. In the gap between the two squeezing rollers 10 of this second pair of squeezing rollers, two sheets of glass fabric 2 * and 3 * are also inserted, which are pulled off supply rolls 12 and 13 and from above or below to the foam sheet 1 J * after it has emerged from the resin bath 6 be introduced. In the exemplary embodiment, the upper roller 7 serves at the same time as a guide roller for the glass fabric web 2 which forms the obscure cover layer 2.
Die beiden Quetschrollen 10 quetschen einen Teil des Harzes ame ä<sT Schaumstoffbahn H1 heraus, wobei die Glasgevsbebahnen 2a t/jiü is mit Harz getränkt werden. Das überschüssige HarzThe two pinch rollers 10 squeeze a portion of the resin ame ä <sT foam sheet 1 H out, wherein the Glasgevsbebahnen 2 a t / jiü i s are impregnated with resin. The excess resin
409833/0874409833/0874
wird von den Quetschrollen abgeführt. Der Spalt zwischen den beiden Quetschrollen 10 wird so eingestellt, daß der Harzgehalt der Kernschicht U die gewünschte Größe hat, wenn die Bahnen 21, 3' und H* die Quetschrollen 10 verlassen haben und das Sandwich-Material 1 für die weitere Verarbeitung fertig ist. Wie die Figur zeigt, dehnt sich die Schaumstoffbahn *** nach dem Austritt aus den Quetschrollen 10 wieder aus.is carried away by the squeegee rollers. The gap between the two squeezing rollers 10 is adjusted so that the resin content of the core layer U has the desired size when the webs 2 1 , 3 'and H * have left the squeezing rollers 10 and the sandwich material 1 is ready for further processing . As the figure shows, the foam web *** expands again after exiting the squeezing rollers 10.
Im Ausführungsbeispxel werden die einzelnen Bahnen im wesentlichen in waagrechter Richtung durch die Vorrichtung 5 geführt. Dies ist vor allem bei einem kleinzelligen Material für die Kernschicht von Vorteil. Es ist aber auch möglich, die Vorrichtung so auszubilden, daß die Bahn in vertikaler Richtung durch sie hindurchgeführt werden können.In the exemplary embodiment, the individual tracks are essentially guided through the device 5 in the horizontal direction. This is especially true for a small cell material for the Core layer advantageous. But it is also possible to design the device so that the path in the vertical direction can be passed through them.
Das nun fertige Sandwich-Material 1 wird ^egen eine zwei- . ... .. teilige Form 15 einer nicht dargestellten, da in üblicherweise ausgebildeten Presse eingelegt. Die beiden Teile der Form sorgen nicht nur dafür, daß sich das Sandwich-Material 1 an die Wandungen der Form anlegt und dadurch diejenige Gestalt annimmt, welche die herzustellende Schale haben soll, sondern komprimieren das Sandwich-Material außerdem in denjenigen Bereichen, in denen eine geringere Wandstärke oder eine größere Dichte erzeugt werden soll. Sowohl die Anpassung an die gewünschte Gestalt des herzustellenden Werkstückes als auch die Einstellung der Wandstärke des Sandwich-Materials bereitet wegen der elastischen Verformbarkeit der Kernschicht U keinerlei Schwierigkeiten.The now finished sandwich material 1 will be a double. ... .. part form 15 of a not shown, since inserted in a conventionally designed press. The two parts of the form not only ensure that the sandwich material 1 rests against the walls of the mold and thereby that shape assumes which the shell to be produced should have, but also compress the sandwich material in those areas in which a smaller wall thickness or a greater density is to be produced. Both adapting to the desired The shape of the workpiece to be produced and the adjustment of the wall thickness of the sandwich material are prepared because of the elastic deformability of the core layer U no difficulties whatsoever.
Um Lufteinschlüsse zu vermeiden, erfolgt das Pressen des Sandwich-Materials 1 in der Form 15 im Vakuum. Für den Fall, daß tixotrpphe Harze verwendet werden oder daß das Aushärten beschleunigt werden soll, ist die Form 15 beheizbar. Nach dem Aushärten kann die aus dem Sandwich-Material 1 hergestellte Schale aus der Form herausgenommen werden. Sie zeichnet sichThe sandwich material is pressed to avoid air inclusions 1 in the mold 15 in a vacuum. In the event that thixotropic resins are used or that curing is accelerated is to be, the mold 15 is heatable. After hardening, the one made from the sandwich material 1 can be used Shell can be removed from the mold. She stands out
409833/0874409833/0874
durch eine hohe Belastbarkeit im Vergleich zu ihrem Gewichtdue to their high resilience compared to their weight
409833/087409833/087
Claims (12)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2302542A DE2302542A1 (en) | 1973-01-19 | 1973-01-19 | SANDWICH MATERIAL, COMPONENT MANUFACTURED FROM IT, METHOD FOR MANUFACTURING THE SANDWICH MATERIAL AND DEVICE FOR CARRYING OUT THE PROCESS |
FR7401457A FR2214587A1 (en) | 1973-01-19 | 1974-01-16 | Sandwich material for building component mfr. - comprising elastically compressible core layer forming a hollow space, and strong cover layer |
IT12430/74A IT1005626B (en) | 1973-01-19 | 1974-01-18 | CONSTRUCTION ELEMENT OF STABLE SHAPE IN SANDWICH STRUCTURE AND PROCEDURE FOR ITS PRODUCTION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2302542A DE2302542A1 (en) | 1973-01-19 | 1973-01-19 | SANDWICH MATERIAL, COMPONENT MANUFACTURED FROM IT, METHOD FOR MANUFACTURING THE SANDWICH MATERIAL AND DEVICE FOR CARRYING OUT THE PROCESS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2302542A1 true DE2302542A1 (en) | 1974-08-15 |
Family
ID=5869397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2302542A Pending DE2302542A1 (en) | 1973-01-19 | 1973-01-19 | SANDWICH MATERIAL, COMPONENT MANUFACTURED FROM IT, METHOD FOR MANUFACTURING THE SANDWICH MATERIAL AND DEVICE FOR CARRYING OUT THE PROCESS |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2302542A1 (en) |
FR (1) | FR2214587A1 (en) |
IT (1) | IT1005626B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3004833A1 (en) * | 1979-04-26 | 1980-11-06 | Composite Tech Corp | FOAM IMPREGNATION DEVICE |
DE3419249A1 (en) * | 1984-05-21 | 1986-01-16 | Günter Hans 1000 Berlin Kiss | Process for adhesion bonding of laminates and laminated substinate part |
WO2017084744A1 (en) * | 2015-11-19 | 2017-05-26 | Daimler Ag | Backrest trimming part, pillar lining part, and method for manufacturing a backrest trimming part and pillar lining part of said type for a vehicle, in particular an automobile |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2862090D1 (en) * | 1977-08-23 | 1982-12-23 | Ici Plc | Method for producing shaped articles of polyolefins containing anisotropic filler using blow moulding techniques |
CH623523A5 (en) * | 1977-09-09 | 1981-06-15 | Alusuisse | Shell for a seat device, in particular for a vehicle seat |
DE2831891A1 (en) * | 1978-07-20 | 1980-01-31 | Vogel Ignaz Fahrzeugsitze | PASSENGER SEAT |
-
1973
- 1973-01-19 DE DE2302542A patent/DE2302542A1/en active Pending
-
1974
- 1974-01-16 FR FR7401457A patent/FR2214587A1/en active Granted
- 1974-01-18 IT IT12430/74A patent/IT1005626B/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3004833A1 (en) * | 1979-04-26 | 1980-11-06 | Composite Tech Corp | FOAM IMPREGNATION DEVICE |
DE3419249A1 (en) * | 1984-05-21 | 1986-01-16 | Günter Hans 1000 Berlin Kiss | Process for adhesion bonding of laminates and laminated substinate part |
WO2017084744A1 (en) * | 2015-11-19 | 2017-05-26 | Daimler Ag | Backrest trimming part, pillar lining part, and method for manufacturing a backrest trimming part and pillar lining part of said type for a vehicle, in particular an automobile |
Also Published As
Publication number | Publication date |
---|---|
FR2214587A1 (en) | 1974-08-19 |
FR2214587B3 (en) | 1976-11-05 |
IT1005626B (en) | 1976-09-30 |
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