WO1996034398A1 - Mica-containing material - Google Patents
Mica-containing material Download PDFInfo
- Publication number
- WO1996034398A1 WO1996034398A1 PCT/DE1996/000773 DE9600773W WO9634398A1 WO 1996034398 A1 WO1996034398 A1 WO 1996034398A1 DE 9600773 W DE9600773 W DE 9600773W WO 9634398 A1 WO9634398 A1 WO 9634398A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mica
- containing material
- material according
- flat
- range
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Definitions
- the invention relates to a mica-containing material made from expanded or expanded and unexpanded mica powder, which is applied to a support having flat openings, and to a method for producing the mica material and its use.
- mica Because of its excellent insulation properties, mica has been used as an insulation material for some time.
- DE 39 22 636 describes a heat shield for motor vehicles in which mica powder with water glass as a binder is applied to a substrate in layer form and then subsequently baked on the substrate by temperature treatment.
- Another application is known from DE 35 12 842.
- This document relates to a flat gasket made from a flat mica material.
- the mica material itself consists of a large number of superimposed flat mica disks, a binder layer being introduced in the overlapping areas of the mica disks lying directly one above the other.
- the mica disks are produced in such a way that mica raw material is split into mica layers by treatment with a reaction solution, possibly with the additional action of higher temperatures.
- a carrier material for example a thin steel wire mesh
- a disadvantage of the mica material described above for the sealing application is in particular that its production is very complex. As described above, it is namely necessary in this case that the mica disks are first produced from the mica powder by chemical treatment. These mica disks must then be subsequently provided with binders in order to connect them to the sealing material. Another disadvantage is that, due to the binder (synthetic resins), harmful emissions caused by decomposition of the organic binder cannot be prevented at higher temperatures.
- the mica material according to the invention is thus distinguished by the fact that expanded or expanded and unexpanded mica powder is bound to a flat support body having openings. Surprisingly, it has been shown that a connection to the mica powder is only possible through the flat supporting body having openings.
- the mica powder is here by clinging to one another and with the perforations. stabilizes the flat support body. Obviously, this is achieved by compressing the inflated individual layers during manufacture. It is particularly surprising that the composite has such a high strength that it can also be used without a binder for most applications. On the other hand, in this case the bond can be released again by a correspondingly long mechanical treatment, so that on the one hand the planar support body and on the other hand the mica powder can be recycled separately. Since the mica material in this embodiment also contains no binder, no emissions occur even at high temperatures (> 600/700 ° C). The manufacturing process is extremely cheap owing to the inexpensive products used, such as expanded mica powder and, for example, glass fiber fabric as the carrier body.
- the carrier body is preferably used in the form of woven fabrics, grids, nets, braids, nonwovens or perforated sheets.
- the material of the carrier bodies described above can consist of non-fibrous or fibrous material, such as, for example, glass, ceramic, plastic, metal, cellulose or carbon.
- Support bodies which are already commercially available, such as glass fiber fabrics or nets, are preferably used here. It has been found in numerous tests that the opening width of the openings can be a maximum of up to 50 mm. However, it is preferred if the opening widths of the openings in the supporting bodies are in the range from 3 mm to 10 mm.
- the web width, ie the areas between the openings, are preferably between 0.001 and 10 mm, particularly preferably between 0.1 and 5 mm. It is advantageous if the openings are evenly distributed over the supporting bodies.
- the supporting bodies can have a basis weight of 30 to 10,000 g / m 2 , preferably a basis weight of 30 to 2000 g / m
- mica powders or mica platelets which are expanded are used as the mica powder, a grain size of up to 20 mm, especially up to 5 mm, being preferred.
- mica powder also includes the degradation products of the mica, e.g. Understand vermiculite.
- Vermiculite is a three-layer phyllosilicate (see Römpp Chemie Lexikon, 9th edition, volume 6, p. 4896). It has been shown that in particular these vermiculites, which are also commercially available, are particularly suitable.
- the mica material according to the invention can also be produced if expanded mica powder with a low proportion (approx. 5 to 20%) of unexpanded mica powder is used.
- a binder in the mica material according to the invention it is of course possible, as previously provided for in the prior art, for a binder to be added to the mica powder or to the mica platelets.
- binders such as, for example, water glass, resins or elastomers
- binders can be used as binders.
- the composite made of mica material can also be solidified by subsequent impregnation or coating.
- the mica material according to the invention has a composite material thickness of 0.2 to 50 mm, preferably 0.5 to 2 mm, and a basis weight of 1,000 to 50,000 g / m 2 , preferably 500 to 3000 g / m 2 .
- a particularly advantageous variant provides for the mica material described above to be introduced between at least two flat materials.
- an extremely effective heat shield for internal combustion engines in the vehicle area can be realized.
- the mica material is used without a binder. This not only has the advantage of a cheap and simple production, but this heat shield is (up to about 900 ⁇ C) even at the occurring here high temperatures with appropriate selection of Trä ⁇ gers, such as glass, metal or ceramic, completely free of emissions. It has been shown that such
- Heat shields not only show good heat insulation, but also excellent sound insulation.
- Heat shields which consist of at least two flat materials, are known from the prior art.
- an insulating material made of laminates is arranged between the flat materials.
- the invention expressly provides for the use of such heat shields in relation to the flat materials and from the prior art Known prior art, but with an inventive mica material as an insulating agent.
- a heat shield can also be realized, which consists of at least one flat material and an inflated mica material. This can e.g. be produced in that the mica material is applied to a sheet metal as flat material.
- the production of the mica material is extremely simple and inexpensive.
- the mica powder or the mica flakes are advantageously applied to the flat support body with the aid of rollers and / or presses.
- a more or less firm bond between the mica powder or the mica platelets and the perforated flat support body can be achieved by increasing or decreasing the pressure.
- the application of pressure obviously means that the compression of the expanded individual mica layers achieves a firm bond.
- the mica material according to the invention can itself be used as an insulating material for high temperatures up to 1,100 ° C., for example in automobile construction, furnace construction or the construction material sector.
- the mica material according to the invention can also be shaped or formed into 3D parts.
- the use of the mica material for heat shields is particularly preferred. For this it is necessary that the mica material described above is introduced between at least two flat materials, preferably between two sheets. The two flat materials are then, for example, as if in and of themselves from the stand the technology for heat shields known, connected at least on one side. However, a connection is also possible, for example by riveting at any point on the heat shield.
- vermiculite is applied to a glass filament fabric by rolling.
- the glass filament fabric with a thread count (DIN 53853) of 5 * 2.1 has an opening width of approx. 4 mm, a web width of approx. 0.7 mm, a basis weight (DIN) 53854) of 160 g / m 2 .
- the binding (DIN 61101) is a "lathe”.
- the fabric is made slip-resistant thanks to a silicate coating.
- the mica powder is a palabora vermiculite (expanded) with a grain size of KO ( ⁇ 1 mm).
- the material compacted between a pair of rollers has a thickness of 1.2 mm and a weight per unit area of approximately 1,200 g / m 2 .
- the mica intermediate layer is punched with the required contour and inserted between two aluminum-clad pieces of sheet metal.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Glimmerhaltiger Werkstoff Mica-containing material
Die Erfindung betrifft einen glimmerhaltigen Werk¬ stoff aus geblähtem oder geblähtem und ungeblähtem Glimmerpulver, das auf einem flächigen Durchbrechun¬ gen aufweisenden Träger aufgebracht ist, sowie ein Verfahren zur Herstellung des Glimmerwerkstoffes und dessen Verwendung.The invention relates to a mica-containing material made from expanded or expanded and unexpanded mica powder, which is applied to a support having flat openings, and to a method for producing the mica material and its use.
Glimmer wird aufgrund seiner ausgezeichneten Isola¬ tionseigenschaften seit geraumer Zeit unter anderem als Isolationswerkstoff eingesetzt.Because of its excellent insulation properties, mica has been used as an insulation material for some time.
So beschreibt die DE 39 22 636 ein Hitzeschild für Kraftfahrzeuge, bei dem Glimmerpulver mit Wasserglas als Bindemittel auf ein Substrat in Schichtform auf- gebracht und dann anschließend durch Temperaturbe¬ handlung auf dem Substrat eingebrannt wird. Ein anderer Anwendungsfall ist aus der DE 35 12 842 bekannt. Dieses Dokument betrifft eine Flachdichtung aus einem flächigen Glimmerwerkstoff. Der Glimmer¬ werkstoff selbst besteht dabei aus einer Vielzahl von übereinandergeschichteten flachen Glimmerscheiben, wobei in den Überlappungsbereichen der unmittelbar übereinanderliegenden GlimmerScheiben eine Bindemit¬ telschicht eingebracht ist. Die Glimmerscheiben wer¬ den dabei so hergestellt, daß Glimmerrohstoff durch Behandlung mit Reaktionslösung, gegebenenfalls mit zusätzlicher Einwirkung höherer Temperaturen, in Glimmerschichten aufgespalten wird. Gemäß einer Aus¬ gestaltung dieser Erfindung ist auch vorgesehen, zwi¬ schen einzelnen Glimmerscheiben ein Trägermaterial, beispielsweise ein dünnes Stahldrahtgewebe, anzuord¬ nen.For example, DE 39 22 636 describes a heat shield for motor vehicles in which mica powder with water glass as a binder is applied to a substrate in layer form and then subsequently baked on the substrate by temperature treatment. Another application is known from DE 35 12 842. This document relates to a flat gasket made from a flat mica material. The mica material itself consists of a large number of superimposed flat mica disks, a binder layer being introduced in the overlapping areas of the mica disks lying directly one above the other. The mica disks are produced in such a way that mica raw material is split into mica layers by treatment with a reaction solution, possibly with the additional action of higher temperatures. According to one embodiment of this invention, provision is also made for a carrier material, for example a thin steel wire mesh, to be arranged between individual mica disks.
Nachteilig bei dem vorstehend beschriebenen Glimmer¬ werkstoff für die Dichtungsanwendung ist insbesonde- re, daß dessen Herstellung sehr aufwendig ist. Wie vorstehend beschrieben, ist es nämlich in diesem Fall erforderlich, daß zuerst aus dem Glimmerpulver durch eine chemische Behandlung die Glimmerscheiben herge¬ stellt werden. Diese GlimmerScheiben müssen dann nachfolgend noch mit Bindemittel versehen werden, um sie zu dem Dichtungswerkstoff zu verbinden. Nachtei¬ lig ist weiterhin, daß hier aufgrund des Bindemittels (Kunstharze) bei höheren Temperaturen eine schädliche Emission durch Zersetzung des organischen Bindemit- tels nicht verhindert werden kann.A disadvantage of the mica material described above for the sealing application is in particular that its production is very complex. As described above, it is namely necessary in this case that the mica disks are first produced from the mica powder by chemical treatment. These mica disks must then be subsequently provided with binders in order to connect them to the sealing material. Another disadvantage is that, due to the binder (synthetic resins), harmful emissions caused by decomposition of the organic binder cannot be prevented at higher temperatures.
Ahnlich verhält es sich bei dem Hitzeschild nach der DE 39 22 636. Hierbei ist es erforderlich, daß das Glimmerpulver mit einem Bindemittel versehen und durch einen Einbrennprozeß mit dem Substrat verbunden wird. Auch hier ist das Herstellungsverfahren sehr aufwendig.The situation is similar with the heat shield according to DE 39 22 636. Here it is necessary that the mica powder be provided with a binder and connected to the substrate by a baking process becomes. Here, too, the manufacturing process is very complex.
Weiter nachteilig ist bei beiden G1immerdichtungs- Werkstoffen des Standes der Technik, daß eine Wieder¬ verwertung des Glimmers nur sehr eingeschränkt mög¬ lich ist. Durch die innige Verbindung des Bindemit¬ tels mit dem Substrat bzw. durch die Verbindung der Gliπurnerscheiben untereinander wird eine Wiederverwen- düng des Glimmers nicht möglich.Another disadvantage of both prior art mica sealing materials is that recycling of the mica is only possible to a very limited extent. The intimate connection of the binder to the substrate or the connection of the glazing disks to one another makes it impossible to reuse the mica.
Ausgehend hiervon ist es Aufgabe der vorliegenden Erfindung, einen Glimmerwerkstoff vorzuschlagen, der als Isolationsmaterial oder als Dämpfungswerkstoff eingesetzt werden kann, wobei der Werkstoff einfach und billig in der Herstellung sein soll.Proceeding from this, it is an object of the present invention to propose a mica material which can be used as an insulation material or as a damping material, the material being intended to be simple and inexpensive to manufacture.
Die vorstehend beschriebene Aufgabe wird in bezug auf den Glimmerwerkstoff durch die kennzeichnenden Merk- male des Anspruches 1, in bezug auf das Verfahrens zur Herstellung durch die kennzeichnenden Merkmale des Anspruches 16 und in bezug auf die Verwendung durch die Merkmale der Ansprüche 17 bis 19 gelöst. Die Unteransprüche zeigen vorteilhafte Weiterbildun- gen auf.The object described above is achieved in relation to the mica material by the characterizing features of claim 1, in relation to the method for manufacturing by the characterizing features of claim 16 and in relation to the use by the features of claims 17 to 19. The subclaims show advantageous further developments.
Der erfindungsgemäße Glimmerwerkstoff zeichnet sich somit dadurch aus, daß geblähtes oder geblähtes und ungeblähtes Glimmerpulver an einen Durchbrechungen aufweisenden flächigen Tragkörper gebunden ist. Über¬ raschenderweise hat es sich gezeigt, daß einzig durch den Durchbrechungen aufweisenden flächigen Tragkörper eine Verbindung mit dem Glimmerpulver möglich ist. Das Glimmerpulver ist hierbei durch Verklammerung untereinander und mit dem Durchbrechungen aufweisen- den flächigen Tragkörper stabilisiert. Dies wird of¬ fensichtlich durch das bei der Herstellung erfolgte Zusammendrücken der aufgeblähten Einzelschichten er¬ reicht. Besonders überraschend ist es, daß der Ver- bund eine so hohe Festigkeit aufweist, daß er für die meisten Anwendungsfälle auch ohne Bindemittel einge¬ setzt werden kann. Andererseits kann der Verbund in diesem Falle durch eine entsprechend lange mechani¬ sche Behandlung wieder gelöst werden, so daß zum ei- nen der flächige Tragkörper und zum anderen das Glim¬ merpulver getrennt einer Wiederverwertung zugeführt werden kann. Da der Glimmerwerkstoff in dieser Aus¬ führungsform auch kein Bindemittel enthält, treten selbst bei hohen Temperaturen (> 600/700°C) keine Emissionen auf. Das Herstellungsverfahren ist auf¬ grund der billigen Einsatzprodukte wie geblähtes Glimmerpulver und z.B. Glasfasergewebe als Trägerkör¬ per äußerst billig.The mica material according to the invention is thus distinguished by the fact that expanded or expanded and unexpanded mica powder is bound to a flat support body having openings. Surprisingly, it has been shown that a connection to the mica powder is only possible through the flat supporting body having openings. The mica powder is here by clinging to one another and with the perforations. stabilizes the flat support body. Obviously, this is achieved by compressing the inflated individual layers during manufacture. It is particularly surprising that the composite has such a high strength that it can also be used without a binder for most applications. On the other hand, in this case the bond can be released again by a correspondingly long mechanical treatment, so that on the one hand the planar support body and on the other hand the mica powder can be recycled separately. Since the mica material in this embodiment also contains no binder, no emissions occur even at high temperatures (> 600/700 ° C). The manufacturing process is extremely cheap owing to the inexpensive products used, such as expanded mica powder and, for example, glass fiber fabric as the carrier body.
Bevorzugt wird dabei der Trägerkörper in Form von Geweben, Gittern, Netzen, Geflechten, Vliesen oder gelochten Bahnen eingesetzt. Das Material der vorste¬ hend beschriebenen Trägerkörper kann aus nichtfasri- gem oder fasrigem Material, wie z.B. Glas, Keramik, Kunststoff, Metall, Cellulose oder Kohlenstoff, be¬ stehen. Bevorzugt werden hierbei solche Tragkörper eingesetzt, die bereits kommerziell günstig zu erhal¬ ten sind, wie z.B. Glasfasergewebe oder Netze. Es hat sich bei zahlreichen Versuchen herausgestellt, daß die Öffnungsweite der Durchbrechungen maximal bis 50 mm betragen kann. Bevorzugt ist es jedoch, wenn die Öffnungsweiten der Durchbrechungen der Tragkörper im Bereich von 3 mm bis 10 mm liegen. Die Stegbreite, d.h. die zwischen den Durchbrechungen vorhandenen Bereiche, liegen bevorzugt zwischen 0,001 und 10 mm, besonders bevorzugt zwischen 0,1 und 5 mm. Vorteil¬ haft ist es, wenn die Durchbrechungen gleichmäßig über den Tragkörpern verteilt sind. Die Tragkörper können dabei ein Flächengewicht von 30 bis 10.000 g/m2, bevorzugt ein Flächengewicht von 30 bis 2000 g/m2, aufweisen.The carrier body is preferably used in the form of woven fabrics, grids, nets, braids, nonwovens or perforated sheets. The material of the carrier bodies described above can consist of non-fibrous or fibrous material, such as, for example, glass, ceramic, plastic, metal, cellulose or carbon. Support bodies which are already commercially available, such as glass fiber fabrics or nets, are preferably used here. It has been found in numerous tests that the opening width of the openings can be a maximum of up to 50 mm. However, it is preferred if the opening widths of the openings in the supporting bodies are in the range from 3 mm to 10 mm. The web width, ie the areas between the openings, are preferably between 0.001 and 10 mm, particularly preferably between 0.1 and 5 mm. It is advantageous if the openings are evenly distributed over the supporting bodies. The supporting bodies can have a basis weight of 30 to 10,000 g / m 2 , preferably a basis weight of 30 to 2000 g / m 2 .
Als Glimmerpulver können handelsübliche Glimmerpulver bzw. Glimmerplättchen eingesetzt werden, die gebläht sind, wobei eine Korngröße bis zu 20 mm, ganz beson¬ ders bis zu 5 mm, bevorzugt ist.Commercially available mica powders or mica platelets which are expanded are used as the mica powder, a grain size of up to 20 mm, especially up to 5 mm, being preferred.
Unter Glimmerpulver werden erfindungsgemäß auch die Abbauprodukte des Glimmers, wie z.B. Vermiculit ver- standen. Bei Vermiculit handelt es sich um ein Drei- schicht-Phyllosilicat (siehe Römpp Chemie Lexikon, 9. Auflage, Band 6, S. 4896) . Es hat sich gezeigt, daß insbesondere diese Vermiculite, die auch kommer¬ ziell günstig zu beziehen sind, besonders geeignet sind.According to the invention, mica powder also includes the degradation products of the mica, e.g. Understand vermiculite. Vermiculite is a three-layer phyllosilicate (see Römpp Chemie Lexikon, 9th edition, volume 6, p. 4896). It has been shown that in particular these vermiculites, which are also commercially available, are particularly suitable.
Der erfindungsgemäße Glimmerwerkstoff ist auch her¬ stellbar, wenn geblähtes Glimmerpulver mit einem ge¬ ringen Anteil (ca. 5 bis 20 %) an ungeblähtem Glim- merpulver eingesetzt wird.The mica material according to the invention can also be produced if expanded mica powder with a low proportion (approx. 5 to 20%) of unexpanded mica powder is used.
Beim erfindungsgemäßen Glimmerwerkstoff ist es natür¬ lich möglich, wie bisher aus dem Stand der Technik schon vorgesehen, daß ein Bindemittel zum Glimmerpul- ver bzw. den Glimmerplättchen zugegeben wird. AlsIn the mica material according to the invention it is of course possible, as previously provided for in the prior art, for a binder to be added to the mica powder or to the mica platelets. As
Bindemittel kommen dabei alle bisher bekannten Binde¬ mittel, wie z.B. Wasserglas, Harze oder Elastomere, in Frage. Die Verwendung von Bindemitteln ist jedoch auf die Fälle begrenzt, bei denen ein äußerst fester Verbund gefordert ist, da durch den Einsatz des Bin- demittels die Wiederverwendung der Ausgangsstoffe eingeschränkt ist. Bevorzugt ist bei dem Bindemittel ein anorganisches, wie Wasserglas. Eine Verfestigung des Verbundes aus Glimmerwerkstoff kann auch durch ein nachträgliches Imprägnieren oder eine Beschich¬ tung erfolgen.All previously known binders, such as, for example, water glass, resins or elastomers, can be used as binders. However, the use of binders is limited to cases in which an extremely strong bond is required, since the use of the binder the reuse of the raw materials is restricted. An inorganic, such as water glass, is preferred for the binder. The composite made of mica material can also be solidified by subsequent impregnation or coating.
Der erfindungsgemäße Glimmerwerkstoff weist eine Ver¬ bundmaterialdicke von 0,2 bis 50 mm, bevorzugt von 0,5 bis 2 mm, und ein Flächengewicht von 1.000 bis 50.000 g/m2, bevorzugt von 500 bis 3000 g/m2, auf.The mica material according to the invention has a composite material thickness of 0.2 to 50 mm, preferably 0.5 to 2 mm, and a basis weight of 1,000 to 50,000 g / m 2 , preferably 500 to 3000 g / m 2 .
Eine besonders vorteilhafte Variante sieht vor, den vorstehend beschriebenen Glimmerwerkstoff zwischen mindestens zwei Flachmaterialien einzubringen. Da¬ durch läßt sich ein äußerst effektives Hitzeschild für Verbrennungskraftstoffmaschinen im Fahrzeug¬ bereich realisieren. Hierfür ist es bevorzugt, wenn der Glimmerwerkstoff ohne Bindemittel eingesetzt wird. Dies hat nicht nur den Vorteil einer günstigen und einfachen Herstellung, sondern dieses Hitzeschild ist auch bei den hier auftretenden hohen Temperaturen (bis ca. 900βC) bei entsprechender Auswahl des Trä¬ gers, wie Glas, Metall oder Keramik, vollständig emissionsfrei. Es hat sich gezeigt, daß derartigeA particularly advantageous variant provides for the mica material described above to be introduced between at least two flat materials. As a result, an extremely effective heat shield for internal combustion engines in the vehicle area can be realized. For this, it is preferred if the mica material is used without a binder. This not only has the advantage of a cheap and simple production, but this heat shield is (up to about 900 β C) even at the occurring here high temperatures with appropriate selection of Trä¬ gers, such as glass, metal or ceramic, completely free of emissions. It has been shown that such
Hitzeschilder nicht nur eine gute Hitzeisolation zei¬ gen, sondern auch ein ausgezeichnete Schalldämpfung. Hitzeschilder, die aus mindestens zwei Flachmateria¬ lien bestehen, sind aus dem Stand der Technik be- kannt. Bei diesen bekannten Hitzeschildern (siehe z.B. DE OS 43 00817 oder DE 40 36 261) ist zwischen den Flachmaterialien ein Isoliermaterial aus Lamina¬ ten angeordnet. Die Erfindung sieht ausdrücklich die Verwendung derartiger Hitzeschilder in bezug auf die Flachmaterialien und die weiter aus dem Stand der Technik bekannten vor, jedoch mit einem erfin¬ dungsgemäßen Glimmerwerkstoff als Isoliermittel.Heat shields not only show good heat insulation, but also excellent sound insulation. Heat shields, which consist of at least two flat materials, are known from the prior art. In these known heat shields (see, for example, DE OS 43 00817 or DE 40 36 261), an insulating material made of laminates is arranged between the flat materials. The invention expressly provides for the use of such heat shields in relation to the flat materials and from the prior art Known prior art, but with an inventive mica material as an insulating agent.
Erfindungsgemäß ist auch ein Hitzeschild realisier¬ bar, das aus mindestens einem Flachmaterial und einem aufgeblähten Glimmerwerkstoff besteht. Dieses kann z.B. dadurch hergestellt werden, daß der Glimmerwerk¬ stoff auf ein Spießblech als Flachmaterial aufge¬ bracht wird.According to the invention, a heat shield can also be realized, which consists of at least one flat material and an inflated mica material. This can e.g. be produced in that the mica material is applied to a sheet metal as flat material.
Die Herstellung des Glimmerwerkstoffes ist äußerst einfach und kostengünstig. Vorteilhafterweise werden dabei das Glimmerpulver bzw. die Glimmerplättchen mit Hilfe von Walzen und/oder Pressen auf den flächigen Tragkörper aufgebracht. Je nach erforderlichem Anwen¬ dungsfall kann durch Druckerhöhung oder Druckernie¬ drigung ein mehr oder weniger fester Verbund des Glimmerpulvers bzw. der Glimmerplättchen mit dem durchbrochenen flächigen Tragkörper realisiert wer- den. Durch die Druckanwendung wird offensichtlich das das Zusammendrücken der geblähten einzelnen Glimmer¬ schichten ein fester Verbund erreicht.The production of the mica material is extremely simple and inexpensive. The mica powder or the mica flakes are advantageously applied to the flat support body with the aid of rollers and / or presses. Depending on the required application, a more or less firm bond between the mica powder or the mica platelets and the perforated flat support body can be achieved by increasing or decreasing the pressure. The application of pressure obviously means that the compression of the expanded individual mica layers achieves a firm bond.
Der erfindungsgemäße Glimmerwerkstoff kann als sol- eher selbst als Isoliermaterial für hohe Temperaturen bis 1.100° C, z.B. im Automobilbau, Ofenbau oder Bau- stoffsektor, eingesetzt werden. Der erfindungsgemäße Glimmerwerkstoff ist auch formbar bzw. umformbar zu 3D-Teilen. Besonders bevorzugt ist die Verwendung des Glimmerwerkstoffes für Hitzeschilder. Dazu ist es erforderlich, daß der vorstehend beschriebene Glim¬ merwerkstoff zwischen mindestens zwei Flachmateria¬ lien, bevorzugt zwischen zwei Bleche, eingebracht wird. Die beiden Flachmaterialien sind dann bei- spielsweise, wie an und für sich schon aus dem Stand der Technik für Hitzeschilder bekannt, mindestens an einer Seite verbunden. Es ist aber auch ein Verbinden z.B. durch Nieten an einer beliebigen Stelle des Hitzeschildes möglich.As such, the mica material according to the invention can itself be used as an insulating material for high temperatures up to 1,100 ° C., for example in automobile construction, furnace construction or the construction material sector. The mica material according to the invention can also be shaped or formed into 3D parts. The use of the mica material for heat shields is particularly preferred. For this it is necessary that the mica material described above is introduced between at least two flat materials, preferably between two sheets. The two flat materials are then, for example, as if in and of themselves from the stand the technology for heat shields known, connected at least on one side. However, a connection is also possible, for example by riveting at any point on the heat shield.
Die Erfindung wird nachfolgend anhand eines Ausfüh¬ rungsbeispieles näher erläutert.The invention is explained in more detail below on the basis of an exemplary embodiment.
Beispiel:Example:
Für die Glimmer-Zwischenlage wird auf ein Glasfila- mentgewebe Vermiculit durch Walzen aufgebracht.For the mica intermediate layer, vermiculite is applied to a glass filament fabric by rolling.
Das Glasfilamentgewebemit einer Fadenzahl (DIN 53853) von 5*2.1 hat eine Öffnungsweite von ca. 4 mm, eine Stegbreite von ca. 0,7 mm, ein Flächengewicht (DIN) 53854) von 160 g/m2. Die Bindung (DIN 61101) ist ein "Dreher". Das Gewebe ist durch eine Silikatbeschich- tung schiebefest ausgerüstet.The glass filament fabric with a thread count (DIN 53853) of 5 * 2.1 has an opening width of approx. 4 mm, a web width of approx. 0.7 mm, a basis weight (DIN) 53854) of 160 g / m 2 . The binding (DIN 61101) is a "lathe". The fabric is made slip-resistant thanks to a silicate coating.
Das Glimmerpulver ist ein Palabora Vermiculit (expan¬ diert) der Körnung KO (< lmm) .The mica powder is a palabora vermiculite (expanded) with a grain size of KO (<1 mm).
Das zwischen einem Walzenpaar verdichtete Material hat eine dicke von 1.2 mm und ein Flächengewicht von ca. 1.200 g/m2.The material compacted between a pair of rollers has a thickness of 1.2 mm and a weight per unit area of approximately 1,200 g / m 2 .
Zur Herstellung eines Hitzeschildes wird die Glimmer- Zwischenlage mit der benötigten Kontur gestanzt und zwischen zwei aluplattierte Blechstücke eingelegt.To produce a heat shield, the mica intermediate layer is punched with the required contour and inserted between two aluminum-clad pieces of sheet metal.
Diese werden an den Rändern verbunden und dreidimen¬ sional zum endgültigen Hitzeschild verformt. These are connected at the edges and three-dimensionally deformed to form the final heat shield.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19515779.6 | 1995-04-28 | ||
| DE19515779A DE19515779C2 (en) | 1995-04-28 | 1995-04-28 | Mica-containing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996034398A1 true WO1996034398A1 (en) | 1996-10-31 |
Family
ID=7760678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1996/000773 Ceased WO1996034398A1 (en) | 1995-04-28 | 1996-04-26 | Mica-containing material |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19515779C2 (en) |
| WO (1) | WO1996034398A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19700628C2 (en) * | 1997-01-10 | 2003-03-20 | Reinz Dichtungs Gmbh | Method for producing a heat shield and a heat shield produced using the method |
| DE19719509C2 (en) * | 1997-05-09 | 1999-06-02 | Porextherm Daemmstoffe Gmbh | Method for producing a thermal insulation composite panel and thermal insulation composite panel produced therewith |
| AU746503B2 (en) * | 1998-05-15 | 2002-05-02 | Welding Institute, The | Heat resistant product and method |
| DE102010005164A1 (en) * | 2010-01-20 | 2011-07-28 | Federal-Mogul Sealing Systems GmbH, 57562 | Heat shield |
| DE102013110155A1 (en) * | 2013-09-16 | 2015-03-19 | Elringklinger Ag | poetry |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1184171A (en) * | 1965-10-21 | 1970-03-11 | R P Barley Ltd | Improvements relating to Bodies of Polyester Resin/Glass Fibre Composition |
| FR2512735A1 (en) * | 1981-09-11 | 1983-03-18 | Lechler Elring Dichtungswerke | STRIP OR PLATE REINFORCED BY A SUPPORT AND METHOD FOR MANUFACTURING SUCH A STRIP OR SUCH A PLATE |
| FR2534851A2 (en) * | 1981-09-11 | 1984-04-27 | Lechler Elring Dichtungswerke | TAPE OR PLATE REINFORCED BY A SUPPORT, PARTICULARLY FOR THE MANUFACTURE OF FLAT SEALS AND THERMAL INSULATORS |
| DE3905871A1 (en) * | 1989-02-24 | 1990-08-30 | Reinz Dichtungs Gmbh | Composite material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025341T1 (en) * | 1979-02-05 | 1981-01-08 | Hollingsworth & Vose Co | SHEET MATERIAL CONTAINING EXFOLIATED VERMICULITE |
| SE466299B (en) * | 1983-08-04 | 1992-01-27 | Micropore International Ltd | HEAT-INSULATING BODY AND MAKING IT MANUFACTURED, INCLUDING A REINFORCING HONEY STRUCTURE AND A HEATING INSULATION MATERIAL |
| DE19850766B4 (en) * | 1998-11-04 | 2004-01-22 | Continental Aktiengesellschaft | Vehicle tires |
-
1995
- 1995-04-28 DE DE19515779A patent/DE19515779C2/en not_active Expired - Lifetime
-
1996
- 1996-04-26 WO PCT/DE1996/000773 patent/WO1996034398A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1184171A (en) * | 1965-10-21 | 1970-03-11 | R P Barley Ltd | Improvements relating to Bodies of Polyester Resin/Glass Fibre Composition |
| FR2512735A1 (en) * | 1981-09-11 | 1983-03-18 | Lechler Elring Dichtungswerke | STRIP OR PLATE REINFORCED BY A SUPPORT AND METHOD FOR MANUFACTURING SUCH A STRIP OR SUCH A PLATE |
| FR2534851A2 (en) * | 1981-09-11 | 1984-04-27 | Lechler Elring Dichtungswerke | TAPE OR PLATE REINFORCED BY A SUPPORT, PARTICULARLY FOR THE MANUFACTURE OF FLAT SEALS AND THERMAL INSULATORS |
| DE3905871A1 (en) * | 1989-02-24 | 1990-08-30 | Reinz Dichtungs Gmbh | Composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19515779C2 (en) | 1999-02-11 |
| DE19515779A1 (en) | 1996-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102005029729A1 (en) | Cladding or housing part of a vehicle and method for its production | |
| EP0229977A2 (en) | Sound-reducing cladding for the engine compartment of a motor vehicle | |
| DE102013206086A1 (en) | Multilayer structural component | |
| EP1982060A1 (en) | Sound-absorbing insulation part having hardening embossings | |
| DE19939227A1 (en) | Composite | |
| EP2251858A1 (en) | Material structure for sound insulation | |
| DE102012207365A1 (en) | Multilayer component and method for producing the same | |
| DE2937399A1 (en) | EQUIPMENT FOR VEHICLES AND METHOD FOR THE PRODUCTION THEREOF | |
| DE102020114155A1 (en) | Plate-shaped acoustic element | |
| DE10250716C1 (en) | Process for producing a porous, plate-shaped metal composite | |
| DE4422585C1 (en) | Air noise absorbing form part | |
| WO1996034398A1 (en) | Mica-containing material | |
| DE3247343A1 (en) | Moulded articles consisting of surface-laminated, binder-containing fibres or particulate materials which are pressed with the application of pressure and heat | |
| DE102016208881A1 (en) | shielding | |
| DE3621658C2 (en) | ||
| EP0453877A1 (en) | Process for the production of multifunctional lining elements | |
| DE202005015164U1 (en) | Wheel arch shell for vehicle, has elastic non-woven fabric forming fiber intermediate layer, which is placed between two base layers, where intermediate layer serves as isolation of two base layers | |
| DE4133712C2 (en) | Process for producing a composite material from at least two layers | |
| AT519010B1 (en) | Motor vehicle component | |
| DE102006045069A1 (en) | Multilayer nonwoven composite material and method for producing a multilayer nonwoven composite material | |
| DE20203808U1 (en) | Insulating outer cladding for vehicles with non-woven fabrics | |
| DE202021103471U1 (en) | Composite material based on non-woven fabrics | |
| DE202016105566U1 (en) | Embossed fiber decoration for a motor vehicle | |
| DE10055481A1 (en) | Self-supporting panel consists of at least two interconnected sub-panels of natural fibers, and has reinforcing elements, with sub-panels compressed | |
| DE102020003819B4 (en) | Underbody paneling part for a vehicle and method for its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| 122 | Ep: pct application non-entry in european phase |