DE3022461A1 - Anti-drone sheet for automobile bodies - has propylene foam layer inorganic mesh reinforcement and permanently plastic adhesive facing - Google Patents
Anti-drone sheet for automobile bodies - has propylene foam layer inorganic mesh reinforcement and permanently plastic adhesive facingInfo
- Publication number
- DE3022461A1 DE3022461A1 DE19803022461 DE3022461A DE3022461A1 DE 3022461 A1 DE3022461 A1 DE 3022461A1 DE 19803022461 DE19803022461 DE 19803022461 DE 3022461 A DE3022461 A DE 3022461A DE 3022461 A1 DE3022461 A1 DE 3022461A1
- Authority
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- Germany
- Prior art keywords
- layer
- sheet
- entdröhnbelagsbahn
- mesh structure
- drumming
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Classifications
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
- 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
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B5/18—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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/08—Closed cell 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
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/18—Fabrics, textiles
- B32B2305/188—Woven fabrics
-
- 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
- B32B2305/38—Meshes, lattices or nets
-
- 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
- B32B2305/72—Cured, e.g. vulcanised, cross-linked
-
- 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
- B32B2311/00—Metals, their alloys or their compounds
-
- 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
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- 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
- B32B2605/08—Cars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Mehrschichtige Entdröhnbelagsbahn für KarosserieblecheMulti-layer anti-drumming membrane for body panels
Die Erfindung betrifft eine mehrschichtige Entdröhnbelagsbahn für Karosseriebleche, bestehend aus einer thermoplastischen Schicht und einem zugfesten Maschengebilde, das auf die Oberfläche aufkaschiert ist.The invention relates to a multilayer anti-drumming covering sheet for Body panels, consisting of a thermoplastic layer and a tensile one Mesh structure that is laminated onto the surface.
Eine Entdröhnbelagsbahn dieser Art wird in DE-GM 79 12 776 beschrieben. Sie besteht aus einer porenfreien, kompakten Folie aus Bitumen oder Kunststoff, auf deren Oberfläche in bestimmten Bereichen ein grobmaschiges Gewebe aus organischen Fasern aufkaschiert ist.A sound deadening membrane of this type is described in DE-GM 79 12 776. It consists of a pore-free, compact film made of bitumen or plastic, on its surface in certain areas a coarse-meshed fabric made of organic Fibers is laminated.
Der Zweck der Armierung besteht darin, ein Zerreißen der Folie unter der Wirkung des Eigengewichtes zu verhindern, während diese in einer Temperkammer auf senkrechte Wände aufgeschmolzen wird. Die diesbezüglichen Schwierigkeiten lassen sich durch Verwendung einer Folie mit yerminderten Flächengewichten nicht-beheben, denn parallel zu der Verminderung des Flächengewichtes ergibt sich eine Einbuße hinsichtlich der erzielten Entdröhnwirkung.The purpose of the reinforcement is to tear the foil underneath to prevent the effect of its own weight while this is in a tempering chamber is melted onto vertical walls. the related difficulties cannot be remedied by using a film with reduced grammage, because parallel to the reduction in the weight per unit area there is a loss with regard to the achieved anti-drumming effect.
Der Erfindung liegt die Aufgabe zugrunde, eine Entdröhnbelagsbahn zu entwickeln, die ein geringes Flächengewicht aufweist, und deren Verwendung im Frequenzbereich unterhalb 600 Hz die Erzielung eines Verlustfaktors von mindestens 0?1 ermöglicht.The invention is based on the object of a sound deadening membrane to develop, which has a low basis weight, and its use in Frequency range below 600 Hz the achievement of a loss factor of at least 0? 1 allows.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Schicht ein Flächengewicht von 0,15 bis 0,75 kg/m2 aufweist und daß sie aus einem geschäumten Polypropylen mit einem Raumgewicht von 40 bis 70 kg/m3 besteht, daß das Maschengebilde bei einem Flächengewicht von 0,10 bis 0,6 kg/m2 aus nicht-organischen Fasern besteht und mit der Oberseite der Schicht verschweißt ist und daß deren Unterseite mit 0,15 bis 0,75 kg/m2 eines dauerplastischen Haftklebers und gegebenenfalls mit einer darauf angeordneten Schutzfli.e versehen ist, wobei das Gesamtgewicht ohne Schutzfolie 0,4 bis 1,0 kg/m2 beträgt.According to the invention, this object is achieved in that the layer has a basis weight of 0.15 to 0.75 kg / m2 and that it consists of a foamed Polypropylene with a density of 40 to 70 kg / m3 is that the mesh structure consists of non-organic fibers with a basis weight of 0.10 to 0.6 kg / m2 and is welded to the top of the layer and that the bottom with 0.15 up to 0.75 kg / m2 of a permanently plastic adhesive and, if necessary, with one on top arranged Schutzfli.e is provided, the total weight without protective film 0.4 to 1.0 kg / m2.
Die vorgeschlagene Entdröhnbelagsbahn wird zur Erleichterung der Anpassung an die jeweilige Form des Karosseriebleches zunächst auf das gewünschte Maß zugeschnitten und in dem erforderlichen Maße vorgeformt. Das kann beispielsweise unter Anwendung üblicher Tiefziehtechnologien geschehen. Es ist selbstverständlich, daß die Umformung so vorgenommen werden muß, daß eine Beschädigung der Schicht aus dem Haftmassenkleber bzw. aus dem Polypropylenschaum vermieden wird. Das erhaltene Gebilde zeichnet sich anschließend durch eine große mechanische Widerstandsfähigkeit aus. Trotz der Verwendung eines dauerplastischen Haftklebers mit zähviskosen Eigenschaften ist selbst in einer hängenden Anbringung eine spätere Lageveränderung nicht zu befürchten. Die Entdröhnbelagsbahn zeichnet sich an der Oberfläche durch eine große Härte und Zugsteife aus, Hieraus ergeben sich vielfältige, konstruktive Vorteile bei der Ausstattung von Kraftfahrzeugen, Die Oberfläche ist glattflächig und eben, was vorteilhaft in bezug auf das Aussehen und die Reinigungsmöglichkeiten ist, Für die Herstellung der Entdröhnbelagsbahn werden bevorzugt Polypropylenschäume verwendet, die ein Raumgewicht von 40 bis 70 kg/m3 aufweisen sowie eine Dicke von 4 bis 8 mm, Die Schaumstruktur ist geschlossenzellig, und die Porenfeinheit nimmt in Richtung der Oberflächen zu, Bevorzugt kommen solche Polypropylenschäume zur Anwendung, die zumindest teilweise eine vernetzte Molekularstruktur aufweisen.The proposed anti-drumming membrane is used to facilitate the adjustment first cut to the desired size for the respective shape of the body panel and preformed to the required extent. This can be done, for example, using common deep-drawing technologies happen. It goes without saying that the reshaping must be made in such a way that damage to the layer of the adhesive mass adhesive or from the polypropylene foam is avoided. The structure obtained stands out subsequently characterized by a high mechanical resistance. Despite the use a permanently plastic pressure-sensitive adhesive with viscous properties is itself in one hanging attachment not to fear a later change in position. The anti-drumming railway stands out on the Surface due to great hardness and tensile stiffness from, This results in a variety of structural advantages in terms of equipment of motor vehicles, the surface is smooth and even, which is beneficial in in terms of appearance and cleaning options is, for manufacture Polypropylene foams with a volume weight are preferably used for the anti-drumming sheet from 40 to 70 kg / m3 and a thickness of 4 to 8 mm, the foam structure is closed-cell, and the pore fineness increases in the direction of the surfaces, Such polypropylene foams are preferably used, at least partially have a cross-linked molecular structure.
Das mit der Oberfläche der Schicht verschweißte Maschengebilde soll eine möglichst hohe Zugsteife haben, Es wird angestrebt, daß diese wenigstens 12 % der Zugsteife eines Federstahlbleches mit einer Dicke von 0,1 mm erreicht, Die genannte Forderung läßt sich besonders günstig erfüllen durch Verwendung eines Maschengebildes aus kraft-und/oder formschlüssig verbundenen Metalldrähten, beispielsweise in Gestalt eines Vlieses oder eines Gewebes, Die Drähte können in Form eines Gitters vereint sein, wobei eine gegenseitige Verschweißung an den Kreuzungspunkten zweckmäßig ist. Eine geometrische Orientierung entsprechend einem Gewebe hat den Nachteil einer relativ verminderten statischen Festigkeit in einer Richtung schräg zum Verlauf der einzelnen Drähte, Dieser Nachteil läßt sich durch die Verwendung eines Metallvlieses vermeiden, dessen geradlinig verlaufende Drähte einander unter ständig anderen Winkeln überkreuzen, Die verwendeten Maschengebilde bestehen aus üblichen Stahlqualitäten.The mesh structure welded to the surface of the layer should Have as high a tensile stiffness as possible. The aim is that this should be at least 12 % of the tensile stiffness of a spring steel sheet with a thickness of 0.1 mm is achieved The requirement mentioned can be met particularly favorably by using a mesh structure made of non-positively and / or positively connected metal wires, for example in shape a fleece or a woven fabric, the wires can be united in the form of a lattice be, whereby a mutual welding at the crossing points is appropriate. A geometric orientation corresponding to a fabric has the disadvantage of a relatively reduced static strength in a direction oblique to the course of the individual wires, this disadvantage can be overcome by using a metal fleece avoid having the straight wires running at each other at constantly different angles cross over, the mesh structures used consist of standard steel grades.
Bei einer Maschenweite von 9 mm beträgt der Drahtdurchmesser vorzugsweise 0,4 mm, Gitter einer entsprechenden Gestalt haben ein Flächengewicht von 0,25 kg/m2 sowie eine Zugsteife von 17.000 N/cm. Sie sind im Handel erhältlich.With a mesh size of 9 mm, the wire diameter is preferably 0.4 mm, grids of a corresponding shape have a weight per unit area from 0.25 kg / m2 and a tensile stiffness of 17,000 N / cm. They are available in stores.
Die verwendeten Maschengebilde werden während der Verschweißung mit der Schicht fest in deren Oberfläche eingedrückt. Bei einer ausreichend großen Maschenweite ergibt sich eine vollständige Einbettung, d.h. die Drähte werden auf allen Seiten vollständig von dem thermoplastischen Material der Schicht umhüllt, so daß im Bereich der Oberfläche keine Unebenheiten verbleiben.The mesh structures used are with during the welding the layer firmly pressed into the surface. With a sufficiently large mesh size the result is a complete embedding, i.e. the wires are on all sides completely enveloped by the thermoplastic material of the layer, so that in the area no unevenness remains on the surface.
Die Verschweißung kann vorgenommen werden durch vorherige Erwärmung und anschließendes Eindrücken des Maschengebildes in die Oberfläche der Schicht. Dabei kollabiert die Schaumstruktur der Schicht im Bereich der Drähte zu einem porenfreien, homogenen lm, In der Umgebung dieses Films nimmt die Dichte der Schicht in Richtung der übrigen Bereiche gleichmäßig ab, Hierdurch verbleiben in den Zwischenräumen der Drähte unzerstörte Bereiche der Schaumstruktur erhalten, wodurch die große Zugsteife des Maschengebildes in günstiger Weise auf die Schicht übertragen wird.The welding can be done by prior heating and then pressing the mesh structure into the surface of the layer. The foam structure of the layer in the area of the wires collapses into a pore-free, homogeneous lm, In the vicinity of this film, the density of the layer increases in the direction the remaining areas evenly, this leaves them in the gaps of the wires preserve undestroyed areas of the foam structure, creating the great tensile stiffness of the mesh structure is transferred to the layer in a favorable manner.
Die Verschweißung kann auch durch eine oberflächliche Erweichung der Schicht und durch anschließendes Eindrücken des Maschengebildes bewirkt werden. Die Erweichung kann erreicht werden durch eine Erwärmung mit einem Xmkrarot-Strahler oder durch eine Beflammung.The welding can also be caused by a superficial softening of the Layer and are effected by subsequently pressing in the mesh structure. The softening can be achieved by heating with an Xmkrarot heater or by applying a flame.
Beide Erwärmungsmethoden sind einfach und unkompliziert durchführbar.Both heating methods are simple and straightforward to carry out.
Sie führen zu einem vollständigen Erschmelzen der Oberseite der behandelten Schicht aus Schaumstoff und zu einer hesonders gleichmäßigen Zunahme der einzelnen Porendurchmesser in Richtung der Unterseite. Das Eindrücken des Maschengehildes kann mit Hilfe eines Kalanders bewirkt werden. Die Dauerfestigkeit einer solchen Art hergestellten Bahn gegen Schwingungen ist ausgezeichnet. Die Oberseite zeichnet sich bei einem gleichmäßigen Aussehen durch eine völlige Porenfreiheit aus, was in vielfacher Hinsicht große Vorteile bietet. Die Anwendung eines entsprechenden Herstellungsverfahrens wird deshalb bevorzugt.They lead to a complete melting of the top of the treated Layer of foam and a particularly even increase in each Pore diameter towards the bottom. Pressing in the mesh structure can be effected with the help of a calender. The fatigue strength of such Kind of manufactured track against vibrations is excellent. the Top is characterized by a uniform appearance and complete freedom from pores which offers great advantages in many ways. The application of an appropriate Manufacturing method is therefore preferred.
Damit die Drähte auf allen Seiten von dem thermoplastischen Material der Schicht umhüllt werden können, muß die Schicht vor dem Flammkaschieren eine Dicke von mehr als 4 mm aufweisen, bevorzugt eine Dicke von 6 mm.So that the wires on all sides of the thermoplastic material the layer can be enveloped, the layer must be a prior to the flame lamination Have a thickness of more than 4 mm, preferably a thickness of 6 mm.
In jedem Falle ergibt sich eine optimale Ergänzung der mechanischen und der dynamischen Eigenschaften der Schicht durch die entsprechenden Eigenschaften des Maschengebildes.In any case, there is an optimal complement to the mechanical and the dynamic properties of the layer through the corresponding properties of the mesh structure.
Die Schicht ist auf der Unterseite zur Verbindung mit dem Karosserieblech mit einer daueraktiven Haftmassenbeschichtung versehen, vorzugsweise mit einer Beschichtung aus einem zähviskosen Schmelzhaftkleber.The layer is on the underside for connection to the body panel provided with a permanently active adhesive coating, preferably with a coating made of a viscous hotmelt pressure sensitive adhesive.
Ihr Flächengewicht liegt in einem Bereich von 0,15 bis 0,75 kg/m2 vorzugsweise in einem Bereich zwischen 0,2 und 0,3 kg/m2. Als Haftkleber eignet sich beispielsweise ein Gemisch dus Polyisopren, Polystyrol und Athylen-Vinylacetat-Copolymer, dessen Glastemperatur (bestimmt mit der DTA bei einer Heizrate von 5 K/min.) auf 410 C eingestellt ist und dessen Erweichungstemperatur nach Kofler 500 C beträgt. Die Schmelzviskosität nach Brookfield beträgt bei 1500 C : 17 Pa,s. Zur Verhinderung einer vorzeitigen Beschädigung hat es sich als zweckmäßig erwiesen, die Beschichtung während der Lagerung und des Transportes entsprechender Teile durch eine Kunststoffolie aus Polyäthylen oder PVC zu schützen.Their surface weight is in a range from 0.15 to 0.75 kg / m2 preferably in a range between 0.2 and 0.3 kg / m2. Suitable as a pressure sensitive adhesive For example, a mixture of polyisoprene, polystyrene and ethylene-vinyl acetate copolymer, its glass transition temperature (determined with the DTA at a heating rate of 5 K / min.) 410 C is set and its softening temperature is 500 C according to Kofler. The Brookfield melt viscosity at 1500 C: 17 Pa, s. To prevent premature damage, it has proven to be useful to the coating during storage and transport of corresponding parts through a plastic film made of polyethylene or PVC to protect.
Die Beschichtung ist maßgeblich an der erzielten Entdröhnwirkung beteiligt.The coating plays a key role in the sound deadening effect achieved.
In der in der Anlage beigefügten Zeichnung ist ein beispielhaftes Teilstück einer Entdröhnbelagsbahn gemäß der vorliegenden Erfindung in teilweise aufgeschnittener, perspektivischer Darstellung wiedergegeben.In the attached drawing is an example Part of a sound deadening sheet according to the present invention in part cut, perspective representation reproduced.
Die Entdröhnbelagsbahn hat einen sandwichähnlichen Aufbau. Sie besteht aus einer Schicht 1 aus einem Polypropylenschaumstoff mit einer Dicke von 4 mm und einem Raumgewicht von 50 kg/m3. In die Oberfläche der Schicht 1 ist ein Drahtgitter 2 durch Flammkaschierung derart eingeschmolzen, daß die Oberfläche porenfrei und in sich glattflächig und vollkommen geschlossen ist. Im vorderen Teil der Darstellung wurde der entsprechende Teil der Schicht abgetrennt, um die Lage der einzelnen Drähte sichtbar zu machen. Das Drahtgitter 2 besteht aus Stahl drähten mit einem Durchmesser von 0,4 mm, die in einem Mittelpunktsraster von 9 mm zu einem Gitter vereint sind. Die einzelnen Drähte sind an den Kreuzungspunkten untereinander verschweißt. Das Drahtgitter 2 hat ein Flächengewicht von 0,25 kgtm2.The anti-drumming membrane has a sandwich-like structure. she consists from a layer 1 of a polypropylene foam with a thickness of 4 mm and a density of 50 kg / m3. In the surface of layer 1 is a wire mesh 2 melted by flame lamination in such a way that the surface is free of pores and is smooth in itself and completely closed. In the front part of the image the appropriate part of the layer was separated to show the location of the individual wires to make visible. The wire mesh 2 consists of steel wires with a diameter of 0.4 mm, which are combined to form a grid in a center grid of 9 mm. The individual wires are welded to one another at the crossing points. That Wire mesh 2 has a weight per unit area of 0.25 kg / m2.
Auf die Unterseite der Schicht ist eine Beschichtung 3 aus einer dauerplastischen Haftmasse mit einem Flächengewicht von 0,25 kg/m2 aufgebracht. Die dauerplastische Haftmassenschicht ist ein Schmelzhaftkleber mit zähviskosen Eigenschaften. Sie dient zur Befestigung an dem zu entdröhnenden Karosserieblech und bewirkt maßgeblich die gewünschte Entdröhnwirkung.On the underside of the layer is a coating 3 made of a permanently plastic Adhesive compound applied with a weight per unit area of 0.25 kg / m2. The permanently plastic The adhesive layer is a hot-melt pressure-sensitive adhesive with viscous properties. she serves for attachment to the body panel to be deadened and significantly causes the desired anti-drumming effect.
Durch gerenseitige Variation der einzelnen Parameter innerhalb der beansnruchten Bereiche lälit sich eine Optimierunq.der '2irksamkeit auch in bezug auf bestimmte Temperaturbereiche erzielen Die Beschichtung ist durch eine abziehbare Folie 4 aus Polyäthylen gegen Beschädigungen vor dem Gebrauch geschqtzttThrough mutual variation of the individual parameters within the Areas not affected by beans can also be optimized in terms of effectiveness to achieve certain temperature ranges The coating is removable by a Foil 4 made of polyethylene protected against damage before use
Claims (10)
Priority Applications (1)
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DE19803022461 DE3022461A1 (en) | 1980-06-14 | 1980-06-14 | Anti-drone sheet for automobile bodies - has propylene foam layer inorganic mesh reinforcement and permanently plastic adhesive facing |
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DE19803022461 DE3022461A1 (en) | 1980-06-14 | 1980-06-14 | Anti-drone sheet for automobile bodies - has propylene foam layer inorganic mesh reinforcement and permanently plastic adhesive facing |
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DE3022461A1 true DE3022461A1 (en) | 1981-12-24 |
DE3022461C2 DE3022461C2 (en) | 1988-04-28 |
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DE19803022461 Granted DE3022461A1 (en) | 1980-06-14 | 1980-06-14 | Anti-drone sheet for automobile bodies - has propylene foam layer inorganic mesh reinforcement and permanently plastic adhesive facing |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0266726A2 (en) * | 1986-11-04 | 1988-05-11 | Chemiegesellschaft Gundernhausen mbH | Sound-damping element and its manufacturing process |
FR2642817A1 (en) * | 1988-12-26 | 1990-08-10 | Cerqueira Benedito | FLOOR FOR CONTAINERS AND BODIES OF VEHICLES IN GENERAL |
EP0407014A1 (en) * | 1989-06-05 | 1991-01-09 | Caterpillar Inc. | Self-supporting sound barrier |
EP0523429A1 (en) * | 1991-07-16 | 1993-01-20 | Continental Aktiengesellschaft | Elastic noise attenuating cover sheet for walls of sound producing structures |
DE4131394A1 (en) * | 1991-09-20 | 1993-04-01 | Pelz Ernst Empe Werke | Low weight laminar sound absorbing sheet - has skin(s) of porous fibre materials with glass cloth and honeycomb type core layer with infill and with walls at right angles to skin |
WO1995027975A1 (en) * | 1994-04-06 | 1995-10-19 | Z^¿Db A.S. | Vibration and sound absorber |
US5575879A (en) * | 1993-10-12 | 1996-11-19 | Eagle-Picher Industries, Gmbh | Method of making an insulator element |
FR2780081A1 (en) * | 1998-06-22 | 1999-12-24 | Rockwool Isolation Sa | Building system with improved sound insulation |
CN102046247B (en) * | 2008-04-25 | 2013-04-17 | 菲利普·瑟勒芒斯 | Flexible golfing mat |
EP2571022A3 (en) * | 2011-09-16 | 2013-08-21 | Michael Mathey | Acoustic absorber |
DE102017131075A1 (en) * | 2017-12-22 | 2019-06-27 | Odenwald-Chemie Gmbh | Cladding element and method for Entdröhnen a component and method for producing a cladding element and use of a cladding element |
Families Citing this family (2)
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DE102008035913B4 (en) * | 2008-07-31 | 2019-05-29 | Airbus Defence and Space GmbH | Composite material with integrated insulation and / or damping and method of manufacture |
DE202012101648U1 (en) * | 2012-05-04 | 2013-08-06 | Faist Chemtec Gmbh | Sound-absorbing foil |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0266726A3 (en) * | 1986-11-04 | 1989-03-29 | Chemiegesellschaft Gundernhausen mbH | Sound-damping element and its manufacturing process |
EP0266726A2 (en) * | 1986-11-04 | 1988-05-11 | Chemiegesellschaft Gundernhausen mbH | Sound-damping element and its manufacturing process |
FR2642817A1 (en) * | 1988-12-26 | 1990-08-10 | Cerqueira Benedito | FLOOR FOR CONTAINERS AND BODIES OF VEHICLES IN GENERAL |
EP0407014A1 (en) * | 1989-06-05 | 1991-01-09 | Caterpillar Inc. | Self-supporting sound barrier |
EP0523429A1 (en) * | 1991-07-16 | 1993-01-20 | Continental Aktiengesellschaft | Elastic noise attenuating cover sheet for walls of sound producing structures |
DE4131394A1 (en) * | 1991-09-20 | 1993-04-01 | Pelz Ernst Empe Werke | Low weight laminar sound absorbing sheet - has skin(s) of porous fibre materials with glass cloth and honeycomb type core layer with infill and with walls at right angles to skin |
US5575879A (en) * | 1993-10-12 | 1996-11-19 | Eagle-Picher Industries, Gmbh | Method of making an insulator element |
WO1995027975A1 (en) * | 1994-04-06 | 1995-10-19 | Z^¿Db A.S. | Vibration and sound absorber |
AT406098B (en) * | 1994-04-06 | 2000-02-25 | Zdb A S | VIBRATION AND MUFFLER |
FR2780081A1 (en) * | 1998-06-22 | 1999-12-24 | Rockwool Isolation Sa | Building system with improved sound insulation |
WO1999067474A1 (en) * | 1998-06-22 | 1999-12-29 | Rockwool Isolation S.A. | Building element with improved acoustic properties |
CN102046247B (en) * | 2008-04-25 | 2013-04-17 | 菲利普·瑟勒芒斯 | Flexible golfing mat |
EP2571022A3 (en) * | 2011-09-16 | 2013-08-21 | Michael Mathey | Acoustic absorber |
DE102017131075A1 (en) * | 2017-12-22 | 2019-06-27 | Odenwald-Chemie Gmbh | Cladding element and method for Entdröhnen a component and method for producing a cladding element and use of a cladding element |
Also Published As
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DE3022461C2 (en) | 1988-04-28 |
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