EP1115893B2 - Procede pour produire des corps moules - Google Patents

Procede pour produire des corps moules Download PDF

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Publication number
EP1115893B2
EP1115893B2 EP99969126A EP99969126A EP1115893B2 EP 1115893 B2 EP1115893 B2 EP 1115893B2 EP 99969126 A EP99969126 A EP 99969126A EP 99969126 A EP99969126 A EP 99969126A EP 1115893 B2 EP1115893 B2 EP 1115893B2
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Prior art keywords
layer
lattice
fabric
textile
fibres
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EP99969126A
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German (de)
English (en)
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EP1115893A1 (fr
EP1115893B1 (fr
Inventor
Hans-Wilhelm Bergmann
Peter ÜBELMESSER
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Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik
Frenzelit Werke GmbH
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Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik
Frenzelit Werke GmbH
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Priority claimed from DE19943411A external-priority patent/DE19943411A1/de
Application filed by Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik, Frenzelit Werke GmbH filed Critical Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising

Definitions

  • the present invention relates to a novel molding process, i. flexible textile substrates are used to produce three-dimensional molded articles with functionally appropriate rigidity by coating fabrics that have been shaped.
  • the stiffening of the flexible textile substrates is carried out by wire flame spraying and / or arc spraying and / or high-speed spraying (HVOF) and / or by plasma spraying. Due to different application thicknesses or quantities, the functional rigidity of the molded part produced can be achieved. It is essential that the molded body produced by means of the usual bonding techniques, such. Welding, screws, etc. can be reconnected with other moldings.
  • the present invention further relates to an asbestos-free or other inorganic fibrous material, with fiber lengths of> 5 microns, a diameter of ⁇ 3 microns, a length / diameter ratio of 3: 1, free-area composite material, d.
  • a molded body comprising at least a first layer of a textile mesh, braid, knitted or nonwoven fabric of aramid fibers and / or E glass fibers and / or silicon dioxide-rich glass fibers and / or carbon fibers and at least one on this first layer applied second layer of metal and / or ceramic.
  • the molded body is characterized by a functionally appropriate rigidity and is mainly used as a soft material compensator, as a smoke apron, as a fire-impact molded part (fire-impact stone), as a molded body for thermal shielding in the automotive industry, as a bumper or as a load-bearing component in lightweight construction.
  • Asbestos and all inorganic fibers artificial mineral fibers
  • the health-damaging effect of asbestos has been known for a very long time.
  • ceramic fibers it is also known that these are respirable and therefore classified as K2 hazardous substances (carcinogenic potential) under the new EU legislation (see 3rd amendment to the GefStVO and TRGS 905). Therefore, new materials or composite molded articles or parts that can be produced from them should be made available as far as possible without the use of the aforementioned fibers. Areas of use for such materials (without the health-endangering fibers) are e.g. the production of flue gas compensators, impact stones, moldings for the automotive industry.
  • Glass fiber fabrics and / or glass nonwovens may be considered as a possible replacement material.
  • Such uncoated glass fiber fabrics however, have no flame deflecting properties due to the open-pore structure, but rather flame absorption properties.
  • such fabrics are not dimensionally stable, which leads to erosion and erosion at high hot air velocities.
  • Such products include vacuum formed ceramic fiber composites.
  • Such products are currently made with ceramic fibers that are respirable and therefore must be classified as K2 hazardous (carcinogenic potential).
  • Such compensators can be realized so far only with the help of a complex multi-layer structure.
  • the high temperature (according to the ETK according to DIN 4102) is broken down or isolated over several layers of an insulating material until corresponding gas-tight but low-temperature-resistant polymer membranes can ensure the low leakage.
  • This compensator contains fluororubber as elastomer component and as reinforcement a textile mesh fabric of aramid fiber and / or E-glass fiber in combination with the fluororubber elastomer component.
  • Rigid sheet metal parts offer the advantage that due to the dimensional accuracy of rigid moldings, movable components or other assemblies can be safely passed.
  • such shields are complicated to produce by the corresponding forming processes and comparatively difficult. Due to the vibration behavior, they also present the risk of touching neighboring components and thus the problem of noise generation. In many applications, however, are also just for example from a vibration point of view, such as. Fatigue, vibration and breakage of sheet metal parts, rigid components not a suitable material.
  • a later revision case or an assembly of adjacent components can be limited or prevented by a rigid component.
  • Polymer-coated textile fabrics in use, often exhibit a lack of temperature permanence and the problem of combustibility of the applied coating.
  • EP 0 331 270 A2 describes a CVD coating process for metals, wherein only the individual fibers are coated. A flat metallic coating on textiles in the sense of film formation and thus a stiffening of the textile materials is thus not possible.
  • EP 0 331 270 A2 does not mention thermal spraying or plasma coating.
  • JP 05347493 A describes the production of a shielding material. This is a storage of powder, which is then pressed with the substrate under heat. Thermal spraying is not mentioned in JP 05347493 A.
  • JP 07300768 discloses coating a polybenzazole fiber fabric.
  • the polybenzazole fibers are of organic origin and show a much lower temperature stability than E-glass fibers.
  • the polybenzazole fibers are flame retardant, they are not incombustible.
  • JP 08049026 describes network-like bodies or their coating by means of thermal spraying. Characteristic of JP 08049026, however, is the use of thermally unstable materials, which are burned out after the coating process. The result then remains the skeleton of the actual coating.
  • JP 05202462 describes wallpaper made of coconut fibers, which are suitable for the purpose of decoration, for EMC shielding and for acoustic shielding. With such substrates is certainly no thermal shield in the sense of high-temperature shielding and certainly no fire barrier against open flames feasible.
  • WO 97/34026 describes the coating of many materials such as synthetic materials, etc. with low melting metals by arc spraying. An intimate connection of the molten state sprayed metallic or ceramic particles with the fiber fabrics is not given, as is apparent from Fig. 2 of WO 97/34026.
  • JP 60208467 describes the coating of Fiber materials with metals, for producing a flexible material with excellent electrical conductivity.
  • the process according to JP 60208467 is such that green fabric is precoated with organic components and then a metal coating takes place.
  • the articles are not per se suitable for use in the high temperature range or in applications with exposure to open flames.
  • US 5,198,290 describes the preparation of metal coated fabrics, e.g. can be used to shield electric motors.
  • the rigidity of the articles produced is obtained exclusively by combination with other materials or by marking.
  • the combination of organic components, which has always been done, makes the use as high-temperature shielding and fire protection impossible.
  • the present invention is therefore based on the object to provide a new process for the production of moldings with functionally appropriate stiffness of flexible textile substrates available.
  • the flexible textile substrates are to be made from classified as safe for health fibers.
  • These new moldings are said to be useful in various applications such as the automotive industry, e.g. in vehicle construction or in robotics, can be used and replace there the previously used moldings.
  • This object is achieved according to the invention by a process for the production of molded articles with functionally appropriate rigidity from flexible textile substrates, the molded articles being non-positively, materially and form-lockingly connectable with other shaped articles, by means of wire flame spraying and / or arc spraying and / or high-speed spraying (HVOF).
  • HVOF high-speed spraying
  • this object is achieved by a process for the production of moldings with functionally appropriate stiffness of flexible textile substrates, wherein the moldings kraft-, material and form-fitting with other moldings are connectable, characterized in that as a textile substrate, a textile mesh fabric web, braided, knitted or knitted fabric or aramid fibers and / or E glass fibers and / or Siliclumdioxid-relchen glass fibers and / or carbon fibers, the textile substrate of asbestos or inorganic fibrous materials or fibers having a length> 5 microns , a diameter ⁇ 3 ⁇ m and a length-to-diameter ratio of> 3: 1, separates from the web a flat blank or punched out and this blank or this punching by wire flame spraying, and / or arc spraying and / or high-speed spraying ( HVOF) molten metallic and possibly ceramic particles on at least one Oberf
  • HVOF high-speed spraying
  • the inventors have found that it is possible to convert flexible textile substrates into moldings having functionally appropriate rigidity by coating fabrics put into shape. This is due to the fact that the sprayed in the molten state, metallic and possibly ceramic particles partially enter into the fabric fibers and partially under themselves an intimate connection. This results in a layer or a shaped body, which is relatively flexible and therefore can be deformed without risk of cracking within wide limits.
  • the shaped article produced according to the invention can be positively, materially and positively bonded to other shaped articles by conventional joining techniques, such as e.g. Welding, screws, etc. are connected. This is achieved by applying partially higher overlay thicknesses around the joints
  • This composite material according to the invention or the molded article consists of at least a first layer of a textile mesh, braid, knitted or nonwoven fabric of aramid fibers and / or E glass fibers and / or silicon dioxide-rich glass fibers and / or carbon fibers and at least one on this first layer by plasma spraying, applied by flame spraying second layer of metal and / or ceramic.
  • the planar composite material according to the invention or the shaped body can either be a soft material compensator, a fire-impact molded part, a shaped body for the automotive industry or a load-bearing component in lightweight construction.
  • moldings in the automotive industry are eg #3abpunmaschine in the engine block of a motor vehicle or bumper.
  • wire harness insulation and lever arms in robotics are considered as applications.
  • the composite structures according to the invention can likewise be used as stabilizing components in vehicle construction.
  • welded joints or other types of joints such as screw joints can be made at certain locations.
  • the coating of fabrics also prevents fraying and displaceability of the glass fabric fibers.
  • the first layer of the textile substrate may consist of one or more layers.
  • Aramid fibers and / or E-glass fibers and / or silicon dioxide-rich glass fibers and / or carbon fibers come into consideration here as material.
  • the silica-rich glass fibers have an SiO 2 content of more than 95%. Therefore, textiles made of silicon dioxide-rich glass fibers are very temperature-stable, ie up to 1100 ° C.
  • Nonwovens ie so-called needle mats, can currently be produced up to thicknesses of 75 mm at densities of ⁇ 200 kg / cm 3 .
  • the textile fabrics used according to the invention as "substrate” have no flame retardancy properties, but rather flame retardant properties on the contrary. Therefore, according to the invention, a coating of metal and / or ceramic is applied by means of wire flame spraying, arc spraying.
  • the metallic or ceramic particles consist in particular of Al, Al alloys, Cu alloys, Cr-Ni alloys, titanium, V4-A steel, Al 2 O 3 , Cr 2 O 3 , TiO 2 , TBC-ZrO 2 , ZrO 2 -CaO, or mixed oxides of the aforementioned non-metals.
  • the coating in particular made of aluminum or high-tempered steels, eg V4-A steel or chrome-nickel alloys acts at the same time stabilizing the final farm. However, this depends on the thickness of the metal coating. This may be in the range of 0.1 to 5 mm, in particular 0.1 to 1.4 mm.
  • the coating prevents the erosion of the fibers and their removal at the high hot air velocities occurring here. Furthermore, a flame inversion is achieved by the coating and achieved a shape stabilization.
  • the starting point is a textile web as the substrate.
  • This web has already been processed by thermal spraying, i. in particular with wire flame spraying and / or arc spraying with a layer of metal such.
  • B. aluminum provided. From this coated web you then make a flat blank. This flat blank can then be coated on the back with metal again. It is advantageous if the cut edges are also coated with metal. Inventionsgeäß it is therefore possible to coat the textile fabric web continuously or discontinuously or as a blank or as a punched.
  • a molded body such as: a soft material compensator, a fire-impact molding or a molded part for the automotive industry produce.
  • planar composite material according to the invention or the shaped body can, as already stated above, be a soft material compensator, a fire-impact molded part or a molded part for thermal shielding in the motor vehicle industry.
  • Vacuum thermoforming pulled and fixed a suitable drapable fabric into a three-dimensional structure.
  • a fixation of the fabric structure is first achieved by the uniform application of a thin coating layer of approximately 75 g / m 2 of aluminum.
  • the coating process makes it possible to locally increase the amount of production.
  • the procedure allows in principle to build up this bearing thickness up to several centimeters. This is exploited in order to achieve a stiffening up to the absolute dimensional stability and hardness for the body statically important points. This also applies to positions in the molding at which a movable component must be passed safely and functionally.
  • a coating quantity can be selected at other locations of the molded article which meets the requirements of absolute fiber incorporation and thermal shielding and impermeability, but nevertheless maintains the textile and flexible character of this section.
  • the transition zones between which, textile, flexible zones and shaping and shape stabilizing, hard zones of the Shaped body corresponds to a continuous mass transfer in the sense of a gradient material.
  • An important advantage of the manufacturing process is that even the classic fastening technology can be reinforced by screws by the local reinforcement of the screw penetration so far that a secure screw fastening without additional aids such as eyelets can be realized. This is also done by the graded application of the coating layer. In extreme cases, a fastening of the textile gradient material can be achieved by a sufficiently high metal support on the textile support via welds or spot welding.
  • Gradient materials can be produced not only in the form that a gradient in terms of the amount of support, but also in the use of the coating materials is realized.
  • another, more ductile metal e.g. Zinc
  • the adhesion of the coating on the textile support on the other hand, the brittleness of the coating are affected by e.g. to design tight radii within a molded part ..
  • precoatings of about 50 g / m 2 are used here.
  • these pre-coatings can also be applied locally limited, to be subsequently sealed as needed with a corresponding cover layer such as aluminum.
  • the term gradient material refers not only to different amounts of coating but also to different coating materials that can be functionally applied, continuously applied.
  • a thermal shield must have the character of a preformed component. Often a design is realized solely by the choice of attachment points. Such solutions have traditionally been realized with the above-described textiles with a polymeric coating. Such products have, in addition to the stated disadvantages of the lack of temperature durability of the coating and the flammability also disadvantages in the fastening technique and the heat radiation (IR emission). In the specific case, the screw bushings must be secured by means of eyelets, because at temperature stress reached by the coating pull-out in the attachment points by destroying the coating is completely lost
  • the moldings of the invention have temperature-permeable coatings and can be additionally reinforced in the attachment points (gradient coating). They therefore offer an absolute pull-out safety.
  • the shaped body according to the invention can be produced as a cold-workable material by a coating deposit of about 300 g / m 2 , which in turn offers easier assembly and stability owing to the deformability.
  • a wall-mounted glass fabric iso-GLAS® fabric type 1115 was continuously coated in a width of 33 cm on both sides with elemental aluminum by the method of wire flame spraying.
  • a spray gun was mounted on a controllable traversing device. At the same time, the fabric was moved further in the longitudinal direction.
  • the distance from the spray head to the fabric is 200 mm.
  • the sustaining diameter of the spray cone is 20 mm with very little overspray.
  • the coating amount chosen here was 150 g / m 2 per side. Overall, the finished article thus about 300g / m 2 with a total weight of the finished article of about 1400 g / m 2 .
  • an arbitrarily high amount of aluminum can be applied by several coating passes. Concrete experiments on different tissues and nonwovens show coating pads on one side of 500 g / m 2 to about 1000 g / m 2, which corresponds to a layer thickness of about mm 1,4. With articles of this kind the flexibility decreases; Here, however, a corresponding dimensional stability can be achieved.
  • the coating coverage of 150 g / m 2 applied here achieves, on the one hand, the temperature-independent low leakage (equivalent to a constant impermeability over the application temperature range). On the other hand, despite the coating, the necessary flexibility and mobility of the article is obtained.
  • the form stability of the fabric increases due to the coating; but this also achieves a significantly improved assemblability.
  • a sealing of the cut edges is obtained by pressing or crushing the cut zone with the aluminum applied as a coating.
  • joining techniques are both classic textile techniques such as sewing in question.
  • a weld joint is also to be considered.
  • the latter possibility is achievable by deliberately applying a larger amount of aluminum at the overlapping points or joints, so that a welding of the metal coating is possible by conventional methods of welding aluminum.
  • a tube of silica-rich glass fibers was pulled onto a rotating metal shaft and fixed thereon.
  • the method of thermal spraying initially applied to this tube a uniform thin layer (about 75 g / m 2 of aluminum for stabilizing the tube.)
  • a considerably stronger overlay was subsequently produced on the respective end pieces.
  • 1.5 cm wall thickness The transition from the thinly coated surface to the end areas was continuous.
  • a metal composite material in the form of a tube which is soft, flexible and able to absorb and execute both axial and radial movements in the inner part.
  • the coating layer in the inner part is chosen so that a sufficient flue gas tightness is achieved in the inner part.
  • the textile carrier hose serves to insulate the temperatures transmitted by the hot flue gases and in conjunction with the coating layer for flue gas sealing.
  • the textile hose in the intimate material combination of metal and textile ensures the resulting rigidity and stability of the entire part.
  • the applied material was machined (re-twisted) in a further working step, so that a connecting flange or a connecting sleeve is formed.
  • a tube of p-Aramidfaseen was pulled over a rotating shaft and coated in the same manner as described in Example 2.
  • the initially uniformly applied layer thickness over the entire tube width is more than 400 g / m 2 .
  • a machining treatment can be performed.
  • the end product must also be referred to here because of the kontiniuerlichen transition from the inner part of the tube to the outside as a gradient material. Due to the fiber composite structure of metal and aramid fibers here, however, a stable supporting Leichbauteil is generated, the connection to other components in turn can be optimally solved by welding, flange or screws.
  • the use can e.g. as a lever arm in robotics; be used as a stabilizing component in vehicle construction.
  • isoTHERM®S material As a textile fabric so-called isoTHERM®S material was used, which is thermally stable up to 1100 ° C. These are silicon dioxide-rich glass fibers with an SiO 2 content of more than 95%. Nonwovens made of iso THERM®S, ie so-called needle mats, can be produced up to a thickness of 75 mm as very compact sheet goods.
  • nonwoven fabrics of this type due to the open-pore structure, have no flame-deflecting properties but rather flame absorption properties to the contrary, a solution can only be achieved by suitably closed, temperature-stable coating.
  • the coating must simultaneously act to stabilize the final shape; Also, this coating must prevent the erosion of fibers and their removal at the high hot air velocities occurring here.
  • a standard non-woven of thickness 45 mm and density> 200 kg / m 3 described above was mechanically pressed into the predetermined shape and punched.
  • a thin layer of aluminum was first applied after the Drahflammspritzbacter, about 70 g / m 2 .
  • Al 2 O 3 was then sprayed onto the prepared surface in accordance with the wire flame spraying method.
  • the order quantity is in the concrete range at about 300-500 g / m 2 .
  • the distance between the spray nozzle and the fleece is 110 mm.
  • the coating is also achieved very evenly by the traversing movement of the spray gun and the simultaneous horizontal movement of the spray gun.
  • the insulating ability of the product is also ensured by the known thermal properties of the nonwoven fabric.
  • V4A wire-reinforced glass fabric smoke masks were made of Mtex ⁇ (trade name of the company Frenzelit, Germany for coated with metals technical textiles).
  • this fabric was initially uniformly coated surface, coated on both sides with a coating of about 150-200g / m 2 aluminum.
  • About the fabric width vzw. 1 m was then coated an approximately 20mm wide strip to a final thickness of 2 mm, so stiffened and stabilized. This was done in a continuous process, depending on the desired length of the curtain, eg 2m again and again in this way.
  • the fabric edges were reinforced to a width of about 20 mm to a coating coverage of about 400 g / m 2 .
  • the result is endless webs which every 2 1fm have a 20 mm wide and 2mm thick band, before which can be cut; In addition, these webs have an edge reinforcement.
  • a molded body is produced with a functional rigidity.
  • the 2 mm thick thickening over the fabric width for secure attachment of the curtains to the upper shaft;
  • the edge reinforcement allows the combination and assembly of several similar, cut-to-length webs.
  • the fastening techniques available here fall under the structure force, form, or materially. Similar to the products described above, the concept of the gradient material applies here as well, due to the uniform transition to the edge and transverse stiffeners and the basic maintenance of the rollability of the textile web with the advantage that the known, proven rolling devices can be retained.
  • Such smoke skirts serve vzw. in industrial plants and large halls for sectioning large rooms to better dissipate the smoke and smoke development occurring in the event of fire.
  • the types of fastening can be temperature stable and incombustible; Due to the consistently inorganic structure, the product can be classified as A1, as incombustible.
  • the carrier fabric used in the present case was V4A wire-reinforced glass fabrics.
  • the porosity, or the pore volume, and the pore size distribution can be varied in this method on the parameters of the thermal spraying, such as spray distance and application amount, etc. Furthermore, these parameters are influenced by the type of binding, the fabric density and the fiber materials.
  • this shaped body can be referred to as gradient material.
  • the gradients can here, as already outlined in the preceding examples, be produced both by different metals, as well as by the continuous transition from stiff, rigid structures to softer, in this case, permeable areas.
  • gradient materials also arise from the point of view of gradually varying porosity between the rigid edge regions and the filtration surface.
  • Vacuum thermoforming pulled and fixed a suitable drapable fabric into a three-dimensional structure.
  • a coating quantity can be selected at other locations of the molded article which meets the requirements of absolute fiber incorporation and thermal shielding and impermeability, but nevertheless maintains the textile and flexible character of this section.
  • the transition zones between soft, textile, flexible zones and shaping and shape-stabilizing, hard zones of the shaped body corresponds to a continuous mass transfer in the sense of a gradient material.
  • Figs. 3 and 4 show the produced heat shielding member according to the present invention.

Claims (19)

  1. Procédé destiné à la fabrication de corps pouvant être mis en forme ayant une rigidité appropriée à la fonction en substrats textiles flexibles, les corps pouvant être mis en forme pouvant être reliés par coopération de forces, de matières et de formes à d'autres corps pouvant être mis en forme, caractérisé en ce que ce substrat textile est imprégné de particules métalliques, et le cas échéant céramiques, fondues au moyen de projection à la flamme de métaux fondus et/ou de projection à l'arc électrique et/ou de projection à vitesse élevée (HVOF),
    sur au moins une bande textile tissée en treillis, entrelacée, texturée, tricotée ou sur un non-tissé en fibres d'aramide et/ou en fibres de verre non alcalin et/ou en fibres de verre riches en oxyde de silicium et/ou en fibres de carbone, de sorte à engendrer une liaison intime des particules métalliques, et le cas échéant céramiques, pulvérisées à l'état fondu, en partie avec les fibres du tissu, et en partie entre elles, et qu'une rigidité de forme soit obtenue par la liaison des fibres, les substrats textiles flexibles étant constitués de matières fibreuses ou de fibres qui sont exemptes d'amiante ou de matières fibreuses inorganiques ayant des fibres d'une longueur > 5 µm, d'un diamètre < 3 µm et d'un rapport longueur/diamètre > 3 : 1, et les corps pouvant être mis en forme étant des compensateurs à matière souple, des éléments de forme de protection contre les chocs dus au feu, des éléments de forme destinés à la protection thermique dans l'industrie des véhicules automobiles, des tabliers pare-fumée ou pare-incendie, des inserts filtrants ou des pare-chocs.
  2. Procédé selon la revendication 1, caractérisé en ce qu'une épaisseur de couche homogène qui est comprise entre 0,1 et 10 mm maximum, notamment entre 0,1 et 5 mm maximum, est appliquée en continu au moyen d'une pulvérisation thermique.
  3. Procédé selon la revendication 1, caractérisé en ce que différentes épaisseurs de couche sont engendrées localement pour le renforcement des éléments de forme.
  4. Procédé destiné à la fabrication de corps pouvant être mis en forme ayant une rigidité appropriée à la fonction en substrats textiles flexibles, les corps pouvant être mis en forme pouvant être reliés par coopération de forces, de matières et de formes à d'autres corps pouvant être mis en forme, caractérisé en ce que l'on choisit en tant que substrat textile une bande textile tissée en treillis, entrelacée, texturée, tricotée ou un non-tissé en fibres d'aramide et/ou en fibres de verre non alcalin et/ou en fibres de verre riches en oxyde de silicium et/ou en fibres de carbone, le substrat textile étant exempt d'amiante ou de matières fibreuses inorganiques ou de fibres d'une longueur > 5 µm, d'un diamètre < 3 µm, et d'un rapport longueur/diamètre > 3 : 1, en ce que l'on sépare ou découpe de la bande une coupe plate, et en ce que des particules métalliques, et le cas échéant céramiques, fondues au moyen de projection à la flamme de métaux fondus et/ou de projection à l'arc électrique et/ou de projection à vitesse élevée (HVOF),
    sont pulvérisées sur au moins une surface de cette découpe plate, de sorte que les particules métalliques, et le cas échéant céramiques, pulvérisées à l'état fondu se lient intimement, en partie aux fibres du tissu, et en partie entre elles, et qu'une rigidité de forme soit obtenue.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le substrat textile choisi est mis en forme par l'application d'une couche préalable réalisée par pulvérisation homogène de 50 à 100 g/m2, notamment de 75 g/m2, et en ce que l'on procède le cas échéant à un revêtement de finition.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on réalise partiellement une surépaisseur du revêtement afin de permettre des techniques de liaison.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'on dispose au voisinage de la première couche une autre couche en textile tissé en treillis, entrelacé, texturé, tricoté ou en non-tissé en fibres naturelles et/ou synthétiques, cette couche étant solidairement reliée à la première couche, et cette couche ayant le cas échéant une stabilité thermique ou des propriétés d'insonorisation plus faibles.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une autre couche en métal, et le cas échéant en céramique, est appliquée au moyen de pulvérisation thermique sur la face arrière de la première couche au moins, de sorte que la première couche fasse office de couche intermédiaire.
  9. Procédé selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que des quantités de 100 à 500 g/m2 sont appliquées sur le seul substrat textile flexible au moins.
  10. Corps pouvant être mis en forme ayant une rigidité appropriée à la fonction, constitués d'une première couche au moins en un textile tissé en treillis, entrelacé, texturé, tricoté ou en un non-tissé en fibres d'aramide et/ou en fibres de verre non alcalin et/ou en fibres de verre riches en oxyde de silicium et/ou en fibres de carbone, et d'une deuxième couche au moins en métal et/ou en céramique appliquée sur cette première couche au moyen de pulvérisation au plasma, de pulvérisation à la flamme,
    caractérisés en ce qu'ils peuvent être obtenus d'après le procédé selon l'une quelconque des revendications précédentes 1 à 9, et en ce que les corps pouvant être mis en forme sont des compensateurs à matière souple, des éléments de forme de protection contre les chocs dus au feu, des éléments de forme destinés à la protection thermique dans l'industrie des véhicules automobiles, des tabliers pare-fumée ou pare-incendie, des inserts filtrants ou des pare-chocs.
  11. Corps pouvant être mis en forme selon la revendication 10, caractérisé en ce qu'il comporte une autre couche en textile tissé en treillis, entrelacé, texturé, tricoté ou en non-tissé en fibres naturelles et/ou synthétiques disposée au voisinage de la première couche, cette couche étant solidairement reliée à la première couche, et cette couche ayant le cas échéant une stabilité thermique ou des propriétés d'insonorisation plus faibles.
  12. Corps pouvant être mis en forme selon l'une des revendications 10 ou 11, caractérisé en ce qu'une autre couche en métal, et le cas échéant en céramique, est appliquée sur la face arrière de la première couche au moins, de sorte que la première couche fasse office de couche intermédiaire.
  13. Corps pouvant être mis en forme selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la seule couche métallisée au moins, et le cas échéant la couche en céramique, comporte différents matériaux et possède le cas échéant différentes porosités.
  14. Corps pouvant être mis en forme selon l'une quelconque des revendications 10 à 13, caractérisé en ce que les particules métalliques ou céramiques sont en Al, en alliages d'Al, en alliages de Cu, en alliage de Cr-Ni, en titane, en acier V4A, en Al2O3, en Cr2O3, en TiO2, en TBC-ZrO2, en ZrO2-CaO ou en oxydes mélangés des métalloïdes précités.
  15. Corps pouvant être mis en forme selon l'une quelconque des revendications 10 à 14, caractérisé en ce que la seule couche métallique et/ou céramique au moins présente une épaisseur de couche sensiblement homogène de 0,1 à 5 mm, notamment de 0,1 à 1,4 mm.
  16. Corps pouvant être mis en forme selon l'une quelconque des revendications 10 à 15, caractérisé en ce que la seule couche métallique et/ou céramique au moins présente localement différentes épaisseurs de couche.
  17. Corps pouvant être mis en forme selon l'une quelconque des revendications 10 à 16, caractérisé en ce que l'épaisseur de couche de la seule couche au moins en textile tissé en treillis, entrelacé, texturé, tricoté ou en non-tissé est comprise entre 0,1 mm et 80 mm.
  18. Corps pouvant être mis en forme selon l'une quelconque des revendications précédentes, caractérisé en ce que le tissu en fibres de verre non alcalin ou en fibres de verre riches en oxyde de silicium est constitué de filaments de verre ou de fils de verranne texturés ou non texturés, et peut le cas échéant être renforcé par du fil d'acier V4A.
  19. Corps pouvant être mis en forme selon la revendication 18, caractérisé en ce qu'il comporte au niveau des arêtes de coupe une couche métallique et/ou céramique, notamment en aluminium.
EP99969126A 1998-09-14 1999-09-14 Procede pour produire des corps moules Expired - Lifetime EP1115893B2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19842025 1998-09-14
DE19842025 1998-09-14
DE19943411 1999-09-10
DE19943411A DE19943411A1 (de) 1998-09-14 1999-09-10 Verfahren zur Herstellung von Formkörpern
PCT/EP1999/006810 WO2000015860A1 (fr) 1998-09-14 1999-09-14 Procede pour produire des corps moules

Publications (3)

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EP1115893A1 EP1115893A1 (fr) 2001-07-18
EP1115893B1 EP1115893B1 (fr) 2002-06-12
EP1115893B2 true EP1115893B2 (fr) 2006-12-20

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Application Number Title Priority Date Filing Date
EP99969126A Expired - Lifetime EP1115893B2 (fr) 1998-09-14 1999-09-14 Procede pour produire des corps moules

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EP (1) EP1115893B2 (fr)
AT (1) ATE219161T1 (fr)
AU (1) AU5978299A (fr)
CZ (1) CZ2001855A3 (fr)
DK (1) DK1115893T3 (fr)
ES (1) ES2178501T3 (fr)
PT (1) PT1115893E (fr)
WO (1) WO2000015860A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6140159B2 (ja) 2011-08-15 2017-05-31 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ 大量保護輸送およびコールドチェーン用途の通気性製品
DE102018202445A1 (de) 2018-02-19 2019-05-16 Audi Ag Verfahren zur Herstellung einer Abschirmung für elektrische und/oder elektronische Komponenten

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4282284A (en) † 1978-08-04 1981-08-04 Textured Products, Inc. Flame and heat resistant electrical insulating tape
US4375493A (en) † 1981-08-20 1983-03-01 Subtex, Inc. Refractory coated and conductive layer coated flame resistant insulating fabric composition

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US4357387A (en) * 1981-08-20 1982-11-02 Subtex, Inc. Flame resistant insulating fabric compositions prepared by plasma spraying
JPS60208467A (ja) * 1984-04-03 1985-10-21 Asahi Chem Ind Co Ltd フレキシブル複合材料
SU1523593A1 (ru) * 1987-12-25 1989-11-23 Белорусский Политехнический Институт Способ металлизации тканей
US4902563A (en) * 1988-03-04 1990-02-20 The Dow Chemical Company Carbonaceous fiber or fiber assembly with inorganic coating
JPH03156998A (ja) * 1989-11-14 1991-07-04 Yoshio Niioka 電波シールド材
JP3191020B2 (ja) * 1991-08-01 2001-07-23 鈴木総業株式会社 複合資材
JPH05347493A (ja) * 1992-06-15 1993-12-27 Suzuki Sogyo Co Ltd 電磁波シールド材並びにその成形方法
JPH07300768A (ja) * 1994-04-26 1995-11-14 Toyobo Co Ltd 金属被覆繊維布帛
JPH0849026A (ja) * 1994-08-03 1996-02-20 Katayama Tokushu Kogyo Kk 金属多孔体および該金属多孔体の製造方法
AU2105597A (en) * 1996-03-13 1997-10-01 Cerma Shield (Proprietary) Limited The coating of materials
DE19726976B4 (de) * 1997-06-26 2004-01-29 Vereinigte Schmirgel- Und Maschinen-Fabriken Ag Biegsamer, leitfähiger, flächiger Körper und Verfahren zu seiner Herstellung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282284A (en) † 1978-08-04 1981-08-04 Textured Products, Inc. Flame and heat resistant electrical insulating tape
US4375493A (en) † 1981-08-20 1983-03-01 Subtex, Inc. Refractory coated and conductive layer coated flame resistant insulating fabric composition

Also Published As

Publication number Publication date
ATE219161T1 (de) 2002-06-15
CZ2001855A3 (cs) 2002-05-15
WO2000015860A1 (fr) 2000-03-23
ES2178501T3 (es) 2002-12-16
DK1115893T3 (da) 2002-10-14
EP1115893A1 (fr) 2001-07-18
PT1115893E (pt) 2002-11-29
EP1115893B1 (fr) 2002-06-12
AU5978299A (en) 2000-04-03

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