WO2006136389A1 - Procede pour realiser un element en materiau isolant en fibres minerales et systeme calorifuge composite comprenant plusieurs elements en materiau isolant - Google Patents

Procede pour realiser un element en materiau isolant en fibres minerales et systeme calorifuge composite comprenant plusieurs elements en materiau isolant Download PDF

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Publication number
WO2006136389A1
WO2006136389A1 PCT/EP2006/005956 EP2006005956W WO2006136389A1 WO 2006136389 A1 WO2006136389 A1 WO 2006136389A1 EP 2006005956 W EP2006005956 W EP 2006005956W WO 2006136389 A1 WO2006136389 A1 WO 2006136389A1
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Prior art keywords
insulating
elements
web
parallel
mineral fibers
Prior art date
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PCT/EP2006/005956
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German (de)
English (en)
Inventor
Gerd-Rüdiger Klose
Original Assignee
Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg
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Application filed by Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg filed Critical Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg
Publication of WO2006136389A1 publication Critical patent/WO2006136389A1/fr

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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
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • 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
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
    • 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
    • B32B5/26—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 also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2419/00—Buildings or parts thereof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/741—Insulation elements with markings, e.g. identification or cutting template
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

Definitions

  • the invention relates to a method for producing an insulating element from mineral fibers, in particular from rock wool and / or glass wool, in which the mineral fibers are produced from a melt and deposited on a conveyor as a primary web, the primary web stabilized at right angles to its longitudinal extent and as a secondary web with two opposite arranged and parallel to each other extending main surfaces and four substantially perpendicular thereto extending extending adjacent surfaces is stored, which is then moved so that the mineral fibers are substantially flat at a right angle to the major major surfaces of the secondary web and in the main surfaces flat, flat and / or parallel to the main surfaces. Furthermore, the invention relates to a thermal insulation composite system consisting of several, especially laid in association insulation elements, preferably parallelepiped configuration, in particular of mineral fibers, wherein the insulation elements have two large surfaces and four side surfaces.
  • Insulating elements are known from the prior art, which consist of glassy solidified fibers with average diameters of about 3 to 8 microns and relatively small amounts of mostly organic binders and are designed as elastic-resilient moldings.
  • Commercially available glass wool, rock wool insulation, occasionally even slag wool insulating materials are distinguished.
  • Glass wool insulating materials are produced from flux-rich silicate melts. The flux used are alkali and / or boron oxides. Glass wool insulation melts above approx. 700 ° C. Thermoset-hardening formaldehyde mixed resins are particularly suitable for the partial bonding of the fibers, since thus different technical properties and prices can be compensated.
  • Cocondensates based on phenol and urea are predominantly used, the OH groups of the phenol often being replaced by ammonia addition by NH groups.
  • the average contents of binders are generally more than 7% by mass.
  • polymethyl methacrylate resins are used alone or in conjunction with film-forming thermoplastic resin dispersions.
  • Rockwool fibers are formed from earth alkali and iron oxide rich melts. In addition to the eponymous rocks are used as raw materials for the melt increasingly slags and other residues from various industries, so that the transition to the so-called slag wool is flowing. Therefore, insulating materials are generally referred to as rock wool insulating materials whose melting point according to DIN 4102 Part 17 is greater than 1000 ° C.
  • the fiber formation takes place in a completely different way than with the glass wool insulating materials.
  • the fibers are shorter and usually twisted.
  • Non-fibrous constituents are regularly found in the fiber mass in the form of, for example, spherical and columnar particles. Their shares are estimated on the order of magnitude of 30% by mass.
  • the contents of organic binders are about 2 to 4.5% by weight or about 2.9 to 6.5% by weight in relation to the fiber mass in the insulating materials considered below.
  • High-boiling aliphatic mineral oils are found in proportions of approx. 0.2 to max. 0.4 mass% in the pulp.
  • All mineral fiber insulation materials may contain more or less large amounts of recycled species-specific insulation fibers or granules, which are not usually captured by the binders used but are held only in the pulp. Their content of flammable substances naturally influences the corresponding fire behavior of the insulating material.
  • An impregnated with binder and additive, initially endless fiber web is collected in a direct Faseraufsammlung on a moving at low speed conveyor to a desired height and continuously removed.
  • several shredding machines are usually arranged in succession over such a conveyor.
  • the common process technology in the production of rock wool insulating materials is that a thin as possible impregnated with uncured binders and additives primary fiber web is placed by means of a pendulum moving device across a slow-speed conveyor to a desired height.
  • the fibrous web is compressed at least in the vertical direction, so that subsequently the desired density and the thickness desired for the respective insulating material can be set from the constant mass flow.
  • the fiber web is also compressed in the conveying direction in order in this way to achieve a more or less intensive shaping of the fibers.
  • the endless fibrous web is conveyed between printing belts of a curing oven which consist of U-shaped laminates with high bending strength and are fastened to circumferential tension elements, for example link chains.
  • the lamellae are varied in width, for example, 160 or 175 mm and have only edges, so that form narrow, continuous gaps between them.
  • the slats are formed toothed and interlock, leaving narrow gaps between the teeth.
  • the rapid heating of the fiber web impregnated with binders and additives takes place by means of hot air guided through the hardening furnace in the vertical direction.
  • the round holes have diameters between about 5 to 7 mm and the widths of the slots also about 5 to 7 mm, while the long surfaces have lengths of, for example, 35 mm or longer.
  • the center distances between the oblong holes are approx. 11 to 12 mm.
  • the slots are arranged uniformly in aligned in the conveying direction rows. The pressure of the printing belts forces the fibers into the holes of the slats and into the joints between the slats.
  • the hot air used for heating the fibrous web, for drying and for curing or for solidifying the binders is usually based on the mass flow rate and the length of the curing oven or the consequent process. since tuned the fiber web; Usually temperatures of mostly about 220 to 240 0 C are set.
  • the residence times of the fibrous web at a constant mass flow depends on the thickness and the bulk density and can therefore be about 1 to 2 minutes for fiber webs with low densities and small thicknesses up to 9 to 10 minutes for fiber webs with high densities and corresponding thicknesses.
  • the endless fiber web is called after hardening or solidification of the binder as an endless insulation web with clearly defined large surfaces. By acting on the large surfaces forces the side surfaces of the insulating material are pressed at least to the outside. If the insulating material web is formed from a suspended primary fiber web, individual layers are still recognizable. The two side surfaces of the endless fiber web are therefore basically cut smooth. At least these trimming sections are returned to the material cycle after appropriate comminution.
  • the heated after leaving the curing oven endless insulating material web is cooled down with the help of ambient air, which is also sucked back through the insulation web in the vertical direction.
  • the endless insulation web is divided into individual sections and optionally in slices to form insulation boards or moldings.
  • Further products that can be produced from the insulating material web are roll-up insulating felts, matted or glued mats or lamellae on carrier layers.
  • the insulating material web After curing and solidification of the binder, the insulating material web has a characteristic inherent color, resulting from the intrinsic colors of the fibers, the non-fibrous constituents, the binder droplets and the respective amount or distribution of the individual components.
  • An insulating material made of stone fibers is dyed black and opaque.
  • the binder-free fibers have a gray color, while the non-fibrous particles are either dyed black or with decreasing diameters or lower layer thicknesses show a lighter brownish coloration and also become translucent.
  • Phenolic resins and formaldehyde phenolic resins are cured in Condition amber, with larger particles appear yellowish-reddish and smaller yellows. With a longer curing time and / or higher curing temperatures, the color becomes more intense and changes to brownish.
  • a rockwool insulation sheet generally has a greyish-greenish to yellowish color, which becomes more intense and uniform with increasing bulk density and higher binder contents.
  • Glass fiber mineral fiber insulation sheets are bright translucent, the solid glass is transparent and slightly greenish colored.
  • the binders used here are brightly colored, for example with phosphate compounds, so that the mineral fibers bound together appear to be more intense and distinctly yellow in color.
  • the two large surfaces of the insulating material web after the passage of the curing oven surveys so-called flight impressions, which arise from the fact that individual fibers of the insulating material web are pressed into the holes of the printing belts and in the gaps between the slats.
  • the surveys thus give size and arrangement of the holes and the width of the slats and their edge formations again.
  • the elevations are naturally more pronounced at higher densities of the insulating material web than at lower densities.
  • the maximum heights or the maximum penetration depths of the fibers into the holes are relatively uniform with approximately 1.5 to 2.5 mm.
  • the fibers can be pressed deeper, so a toothed design of the lamellar edges is preferred because here the elevations are not higher than the holes.
  • the elevations are bell-shaped in the area of oblong holes, with individual fibers largely following the contour and not protruding at more or less steep angles from an ideal surface. This can be conclude that here the connections between the fibers must be more intense than in the insulating material itself.
  • binder-free or binder-poor fibers On the large surfaces of the insulation web veils are often formed of completely binder-free or binder-poor fibers. These areas swell out of the surfaces of the insulating substrate web and have no or only very weak imprints through the printing tapes. Nevertheless, it can be seen from the cohesion of the topmost fibers and the coloration of these areas of the surfaces that a relatively high proportion of binder must be present, which is obviously higher than in the underlying zones. The same applies to all other areas of the two large surfaces. Obviously, when the binders are dried and cured by the flow of hot air, displacements of the binders within the insulating material web and, as in the impregnation of the fibrous web in the so-called collection chambers, further losses of binder substance occur.
  • the layer thicknesses in which discoloration is observed and in which possibly binders are enriched are less than 1 mm, more precisely ⁇ 0.5 mm or only a few fiber layers.
  • the indication of such dimensions is considerably hindered by the fact that insulating materials made of mineral fibers have no self-contained and therefore uniquely determined upper or boundary surfaces. Mineral fiber insulation has only defined surfaces.
  • the thicknesses of the insulating materials made of mineral fibers in accordance with the relevant standards and other regulations are determined in such a way that, for example, by laying a flat body first defines a common surface whose distance from the support surface is referred to as thickness.
  • the binder is often in the form of droplets in gussets of the fibers and / or in the form of films on the surface of the fibers, the binders relating to the adjacent gaseous phase - mostly the air - both on or below the individual fibers are located.
  • the fibers themselves have carbonaceous coatings. This may be once the dust-binding and hydrophobic additives, so for example mineral oils as well as substances that are registered by the hot air in the curing oven in the insulation web and adsorbed on the fibers.
  • Lamellar plates can be produced by dividing the endless insulation web already longitudinally on the production line parallel to the large surfaces of the insulating web into partial webs corresponding to the desired lamellar plate thickness and then into individual sections.
  • the separation takes place for example with a toothed flywheel, a pendulum saw or a horizontal rotating band saw.
  • the pulleys of the band saw are attached to a portal.
  • a relatively narrow saw band of the band saw is performed over a width of more than 1200 mm, so that always slight deformations of the saw blade occur, but they are larger when the saw blade begins to lose its sharpness.
  • the time between the clogging of the Vormaterialplatten and the shutdown of the band saw is minimized, which can cause the saw already starts before the insulation has reached its rest position.
  • running cross-cut saws can be used, so that the plate web can be conveyed continuously.
  • the plate web can press against the saw blade, so that with respect to the horizontal plane a slight skew angle of the cut surface occurs with respect to the side surfaces of the sliced plate cut from the plate web.
  • the skew angle can also be triggered by a one-sided loading of the saw blade.
  • Precise cuts can be made with the aid of gang saws, which, however, have to be retrofitted to a large number of different lamella plates in a short time.
  • a deviation from the squareness with respect to the material thickness of the plate web can result in all the above separation devices from a skewed arrangement of the separator relative to the conveying plane of the plate web. If the two cut surfaces of a lamella plate run parallel to one another, this results in a lamellar plate in cross section in the form of a skew-parallelogram. Antiparallel cut surfaces lead to a lamella plate, which is wedge-shaped.
  • lamellar plates are adhesively bonded in a bandage on a building surface with its large surfaces, which is one of the cut surfaces.
  • the adhesive layer usually consists of an adhesive mortar, usually with the help of a feed pump over the entire surface, but preferably caterpillar is sprayed onto the building surface.
  • the adhesive layer is mounted by means of a toothed Traufei on a large surface of the lamella plate.
  • the adhesive layer can also be first applied smoothly to the building surface and then combed.
  • a sufficiently thick layer of adhesive With a sufficiently thick layer of adhesive, slight unevenness in the building surfaces can be compensated for and a slight tapering in relation to the large surfaces of the lamellar plates can be compensated for by pressing the lamellar plate into the adhesive layer at different depths.
  • this is only possible with a fresh and therefore still soft adhesive layer without great pressure, provided that the wedging, better still their direction before laying is recognizable.
  • Subsequent impressions of individual or several lamellar plates, for example by hand or with the aid of a plate not only costs a lot of time, but also very easily leads to damage to the surfaces of the lamella plates.
  • the fiber or fiber ribbons are very easily kinked in the near-surface zones, so that the transverse tensile strength drops drastically or the applied plaster no longer holds.
  • the thickness of the adhesive layer can and must be reduced to less than, for example, 3 mm, in order to keep the moisture content of components made of wood-based materials, for example, low. But again higher demands are placed on the dimensional accuracy and uniformity of the insulation boards used.
  • a reinforced plaster layer is applied on an insulating layer created from the insulation boards.
  • the reinforcement usually consists of one in a Grundputz and einproofden glass fiber fabric with square perforation.
  • the thicknesses of the plaster layer are to be formed as low as possible.
  • synthetic resin plasters with average thicknesses of less than approximately 1.25 mm are applied.
  • the fiberglass fabrics have knots that are often thinner than the base coat and intensely colored with the help of aggregates and / or pigments to cover perfection like a paint. Nevertheless, often unevenly thick plaster layers over wedge-shaped lamella plates, joints or in the region of overlaps of the glass fiber fabric.
  • lamellar plates with their cut surfaces are glued to smooth or profiled sheets.
  • the frictional bonding is carried out with this particularly suitable polyurethane adhesives, as these once show excellent adhesion to the surfaces to be joined, foam easily after application and thereby fill in unevenness in the insulation layer and slight profiling of the sheets.
  • a high specific use of combustible adhesive caused by the unevenness of the insulating layer or by wide joints not only causes higher production costs but also becomes a risk in case of fire and in any case reduces the fire resistance.
  • insulation boards which have with lamellar plates similar structures, in particular comparable strength properties, ie sufficiently high transverse tensile strengths.
  • a method is known in which a primary fiber web is set up in a loop and the loops are then pressed horizontally against one another in the conveying direction. After solidification of binders contained in the fibrous web, the loops of the primary fibrous web form largely upstanding web-like densities. In the areas below the large surface of the erected fibrous web, the fibers are relatively flat with the large surfaces. These areas are relatively compressible because of the orientation of the original fibrous web.
  • these areas also reduce the transverse tensile strength at right angles to the large surfaces of the erected fiber web.
  • the individual fibers run predominantly parallel to the axes of the loops and thus transversely to the established primary fiber web.
  • the two areas In order to achieve high transverse tensile strengths with respect to the two large surfaces of the erected fibrous web, the two areas must be removed in which the fibrous bands and the individual fibers are arranged at shallow angles to the large surfaces. Insulation boards can then be produced from this fibrous web, which can be used in thermal insulation systems on the building surfaces to be insulated solely by gluing, whereby the large surface oriented towards the building surface must be correspondingly processed while the large surface remote from the building surface can also have flat lying fibers.
  • Open joints between adjacently arranged lamellar plates or directly comparable insulation boards reduce the thermal resistance of an insulating layer and also reduce the resistance time in the event of fire, since here the heat transfer is promoted by convection or radiation. This also applies to sandwich panels.
  • the DIN EN 13162 standard specifies the permissible tolerances for the length of ⁇ 2% and for the width of ⁇ 1, 5%. The dimensions are determined in accordance with DIN EN 822. For nominal widths of commercially available lamellar plates of 200 mm, additional or reduced widths of 3 mm are permissible, which can add up to joint widths of 6 mm when laid in a joint. The joint widths are also determined by the deviations from perpendicularity in the length and width directions, which, measured in accordance with DIN EN 824, must not exceed 5 mm / m.
  • the deviation from the evenness of an insulating material is defined in the standard DIN EN 825 as the largest distance between the specimen lying on a flat surface with a convex surface upwards and this flat surface, so that in principle the greatest distance between the underside of the specimen and the flat surface is determined.
  • maximum deviations of 6 mm are permitted.
  • the limiting dimensions of the thicknesses of the insulation boards to be classified according to application in stage T5 according to DIN EN 13162 are -1% or -1 mm, the smaller numerical value being decisive here and being set at +3 mm.
  • the use of the permissible according to the standard tolerances and other tolerances in relation to the mold produced insulating board are not suitable for use and would be deficient from the outset.
  • Laminated panels used in external thermal insulation systems or sandwich constructions are not directly marked, but only on their packaging materials. This complicates the identification of the insulation boards in case of damage or after dismantling and the subsequent landfill or in a technically readily possible recycling by melting. Markings also allow an arrangement of insulating materials in the same direction, which is made possible, for example, with mineral wool ceiling tiles by directional arrows on the backsides of the boards. With the help of markings, the tops of roof insulation panels are marked. Markings on the large surfaces of insulating felt facilitate the cutting to length of individual sections. Occasionally, markings are applied to the side surfaces of Dämmfilzen, in turn, to be able to make the separation of sections without the aid of measuring rods or the like.
  • the insulating material can be downgraded in its building material class.
  • the colors usually have to be sprayed on.
  • the markers also blur slightly before final drying. Overall, the cost of production is great. Readability is low due to the existing elevations in the large surfaces. Permanent markings are produced by discoloration of the binders as a result of intense heat treatment. This can be done in direct contact by means of heated rollers which have elevations on their lateral surface or by means of laser beams. With the help of laser beams, relatively large-area markings can be baked at high speed.
  • the invention has the object to improve a generic method such that a gat- According to the invention thermal insulation composite system with improved thermal and sound insulation properties created in which in particular the connection of adjacent rows of insulating elements can be formed with a higher density, the advantages of known thermal insulation composite system are maintained.
  • the solution to this problem provides in a generic method that the secondary web is divided into individual insulating elements, each having two oppositely disposed and parallel to each other extending large surfaces and four substantially perpendicular thereto aligned aligned side surfaces, wherein the insulating elements in the area large surfaces are formed with a different compressibility.
  • this object is achieved by providing that at least one side surface, in particular two parallel side surfaces, has or have a layer-like region with increased compressibility compared to a core region.
  • the secondary web is divided into individual insulating elements, each having two oppositely disposed and parallel to each other extending large surfaces in four substantially perpendicular thereto aligned aligned side surfaces, wherein at least a portion of a Main surface of the secondary nonwoven fabric as a side surface of the insulating element are formed around two mutually parallel minor surfaces of the secondary nonwoven as large surfaces of the insulating element.
  • the secondary surfaces of the secondary nonwoven thus form the large surfaces of the insulating element, via which the insulating element is connected, for example, with a building wall.
  • a development of the method according to the invention provides that at least one side surface of the insulating element is formed with a marker, so that the processing of the trained from the secondary nonwoven insulating material elements on the site is much easier because the processor element orientation of the insulating material relative to the building to be insulated is shown.
  • both side surfaces of the insulating element each have a mark, which are formed differently, for example, be colored differently.
  • This embodiment in addition to the above-described arrangement of a mark on a side surface, the transmission of additional information to the processor to not only display the example to be connected to the building exterior surface side surface, but also specify an orientation of the insulating element relative to the building exterior surface.
  • a further embodiment provides that the marking is formed with thermal energy as a color change of a binder in the secondary non-woven and / or insulating element.
  • the marking can already be applied in the secondary non-woven, ie before the separation of the secondary non-woven in insulation elements. But it is also possible to apply the markers finally, ie after splitting the secondary web into individual insulating elements.
  • Such insulation elements is affected only slightly by the additional marking of the side surfaces in its course.
  • a binder is additionally applied to the side surface to be provided with the marking.
  • This additional binder serves on the one hand to form the mark with a higher contrast and also has the advantage that the side surface is solidified by the supplementary binder.
  • the secondary non-woven is divided transversely to its longitudinal direction in strip-shaped insulating elements.
  • This configuration can be carried out in a simple manner with conventional cutting devices, such as knives and / or saws, such as circular saws, band saws or chop saws, whereby the cutting of the secondary web transversely to its longitudinal direction in strip-shaped insulating elements does not affect the production process unnecessarily.
  • the secondary nonwoven is subdivided in its longitudinal direction into at least two insulating elements, which are then subdivided into individual sections transversely to the longitudinal direction of the secondary nonwoven.
  • This procedure is particularly advantageous if the secondary web has too great a width or material thickness, so that only such insulating elements can be cut out of the secondary web, which are disadvantageous in terms of their handling in confined spaces of a construction site.
  • the insulating elements are formed in the region of their large surfaces with a different compressibility. With a higher compressibility of the density connection of adjacent rows of such insulating elements is much easier to achieve.
  • the different compressibility is set in the large surfaces of the insulating elements by a different depth removal of the flat in the region of the main surfaces of the secondary web, flat and / or parallel to the main surfaces extending mineral fibers. The maximum compressibility of such insulating elements is achieved where flat, flat and / or parallel to the main surfaces extending mineral fibers are not removed from the secondary web.
  • the method according to the invention is advantageously further developed in that at least one secondary surface and / or main surface of the secondary nonwoven fabric is formed with a coating before dividing up insulating material elements.
  • the coating can be formed, for example, as an impregnation, coloring and / or adhesive, wherein the coating performs such tasks, for example, consolidates the insulating elements in a surface area, features or prepared for bonding.
  • the markers described above are formed from letters, numbers, pictograms and / or other characters so that they are easily understandable to the user.
  • markings can also be advantageous for recycling methods of corresponding insulating elements after their dismantling.
  • a binding agent contained in the secondary web is cured in a hardening oven prior to splitting into insulating elements.
  • a trained according to such a method insulating element or a secondary web formed in this way can be cut after curing of the binder with a higher accuracy, so that the thus formed insulating elements have a much greater homogeneity, insofar as the previous curing of the binder, the tearing of mineral fibers from surface areas reduced by sawing or cutting.
  • resulting unevenness on the main surfaces of the secondary nonwoven fabric are removed before splitting into insulation elements, in particular sawed off, cut off and / or sanded to achieve the best possible flat surfaces of the insulating elements.
  • the secondary web and thus the insulating elements to be produced therefrom in the removal of the unevenness in terms of their aligned parallel to the surface normal of the major surfaces thickness, preferably to a maximum deviation over the main surface of a maximum of + -2 mm, in particular + -1 mm are calibrated.
  • Insulating elements produced by such a method have a high angular accuracy, which enables a simplified processing in a thermal insulation composite system.
  • the thickness, the length and / or the width of the insulating element is calibrated with identical tolerances. This ensures that the installation of such manufactured insulating elements in thermal insulation systems without special orientation and without prior selection of certain insulation elements must be made with great dimensional accuracy.
  • Unbound fibrous and non-fibrous particles are preferably removed after the removal of unevenness, in particular suctioned off, for example, to allow the application of an adhesive, without the risk that adhered by unbonded particles of the adhesive in some areas not on the surface of the insulating element.
  • An inventive composite thermal insulation system consists of several, especially in association laid insulation elements, preferably parallelepiped configuration, of mineral fibers having two large surfaces and four side surfaces, wherein at least one, in particular two parallel side surfaces has a layer-like area with respect to a core region of increased compressibility or exhibit.
  • Such a thermal insulation composite system offers the possibility of a possible joint-free and thus sound and heat-sealed arrangement of insulating elements.
  • a development of this embodiment of the thermal insulation composite system provides that the insulating elements made of mineral fibers have a grain of fiber perpendicular to the large surfaces.
  • the insulating elements are designed as lamellar plates or fins, and it has proven to be advantageous to form the insulating elements of glass and / or stone fibers.
  • At least one insulating element has two differently formed regions with increased compressibility relative to the core region.
  • the ranges of different compressibilities serve to compensate for deviations of the squareness of the insulating elements, in which the areas of increased compressibility are used in a simple manner that adjacent rows of insulating elements are placed under pressure on each other, so that the areas of increased compressibility compensate for unevenness and Schiefwickltechniken.
  • the differently shaped regions of increased compressibility are arranged on mutually parallel side surfaces of the insulating element.
  • the insulating elements are arranged in at least two rows to each other such that the areas of increased compressibility of the arranged in adjacent rows of insulating elements are aligned with each other.
  • a high variability of possible horizontal orientation of the insulating elements is achieved over the areas of increased compressibility, without causing the risk that deviations of the perpendicularity of the individual insulating elements with respect to an increase in joints adjacent rows from the fabric elements effect.
  • insulating material elements can be produced with which largely homogeneous insulating layers can be made from, for example, relatively small-format lamellar plates, wherein the insulating elements can be laid with narrow joints.
  • the lamellar plates are separated disc-wise in production longitudinal direction of a secondary web as insulation elements.
  • a longitudinal section carried out for this purpose is characterized in that web-like compactions are connected in the insulating elements by flat fibers stored below the side surfaces.
  • the thickness of the compression zones may be different to accommodate particular arrangements of the fin plate.
  • the lamellar plates can be arranged on a surface of a building to be insulated or within a sandwich construction in such a way that in each case a thicker compression zone adjoins a thinner compression zone of an adjacent lamella plate.
  • the insulation boards intended for the formation of the insulating layers in thermal insulation composite systems can be provided with coatings, impregnations on their large surfaces or contain particles which react in the near-surface areas to the action of moisture, moist adhesive and / or plaster layers. Both large surfaces can be differently colored or treated differently with coatings, impregnations or particles.
  • these coatings or impregnations as well as later applied adhesive and plaster layers do not cover as a laying aid or for identification intended marking, these are applied to the not glued or otherwise covered in the application side surfaces of the lamella plates. At least one of the two side surfaces is marked, for example, with preferably non-combustible colors. Alternatively, it may be provided to make the marking with the aid of thermal energy in such a way that organic binders contained in the fiber mass change their color such that areas of the insulating material treated with thermal energy clearly stand out from areas not treated with thermal energy.
  • the heat treatment can be carried out, for example, with the aid of heated embossing rollers, which transmit their heat energy in direct contact with the insulating materials.
  • the markings can be applied without contact with sharply focused gas flames, but preferably with laser light. Its energy can be so high that the organic binders sublime and the markers represent the intrinsic color of the glass fibers.
  • the glass fibers themselves can intensify their intrinsic color by oxidation reactions or already sinter or melt.
  • organic colors or binders can be applied to the side surface to be marked ⁇ ).
  • the lamellar plates are simultaneously calibrated with respect to their thickness, so that their dimensional tolerances are reduced in thickness to ⁇ 2 mm, preferably ⁇ 1 mm.
  • the dimensional tolerances correspond to the tolerances of the width of the lamella plates.
  • the lamellar plates are produced from a starting material which is plate-shaped.
  • the starting material is by an upper guide without slipping and secured against slipping pressed on a lower conveyor and promoted to a separator.
  • a required cycle work tende feed device may consist of two superposed, consisting of individual slats endless conveyor belts.
  • the individual lamellae of the two conveyor belts or a conveyor belt may have short teeth which engage in the surfaces of the starting material.
  • the upper guide may be formed band-shaped or have one or more pressure rollers.
  • lamella plates separated from the starting material are first rotated in the same direction through 90 ° rotated stored on a conveyor. From this conveyor, the lamellar plates are transferred with a slight excess of speed to a subsequent conveyor on which they form an endless, under slight horizontal directional pressure insulating material web.
  • the lamellar plates can be moved between two superimposed pressure-exerting conveying elements, wherein the lower conveyor element serves as a reference surface for subsequent processing operations, so that this conveyor element must be flat in itself and must not allow deformations of the lamella plates.
  • this conveying element is therefore formed from lamellar bodies that are connected to form an endless belt.
  • a grinding device is arranged, with the aid of an upper large surface of the lamella plates are ground parallel to a lower.
  • the grinding device may be arranged transversely to the conveying direction of the lamella plates or at any angle thereto.
  • the working direction of the grinding device can also be directed against the conveyed lamella plates.
  • the deviations from the nominal thickness of the lamella plates can be reduced in this way ⁇ 2 mm, preferably ⁇ 1 mm. If a wedging of the lamellar plates is caused by the separating device, this can already be prevented by an excess in the material thickness of the lamella plates. materials or the lamellar plates are taken into account in order to comply with the said tolerances can.
  • both large surfaces of the lamella plate are aspirated.
  • the method according to the invention is also applicable to the production of mineral wool insulation boards which have characteristic elevations on both large surfaces. These bumps are created by pressing a binder-impregnated continuous fibrous web into the openings of pressure belt laminations revolving in a curing oven and in gaps between the pressure belt laminations during solidification of the binders.
  • Mineral wool insulation boards are used to form insulating layers in thermal insulation systems.
  • the insulation boards are glued using adhesive, such as adhesive mortars on the outside walls and ceilings.
  • the adhesive mortars are applied in the form of a peripherally encircling bead, supplemented by several batches in the central areas of the plates.
  • the insulation boards are then pressed against the surfaces to be insulated and thereby aligned.
  • the adhesive mortar can also be transported by means of a pump via a hose to the processing site and applied via a nozzle-shaped end piece on the surfaces to be insulated.
  • the actual backup of the insulation boards is done later with the help of so-called insulation holders, which are anchored with the help of dowels in the surfaces to be insulated.
  • the necessary contact pressure is achieved by means of plates, which are easily pressed into the surface of the insulation boards, so that a smooth outer surface is formed.
  • the reinforcement usually consists of a glass fiber mesh fabric with an average thickness of about 0.5 mm, a maximum of about 0.8 mm.
  • Mineral plasters are applied in thicknesses of about 5 to 7 mm, but in terms of technical properties advantageously in thicknesses of about 12 to 15 mm, so that the reinforcing fabric in the first third of the plaster layer can be arranged to develop its full effect ,
  • resin plasters are used whose layer thicknesses are reduced to minimum values.
  • the usual thickness is similar to that of the glass fiber meshes.
  • webs of the glass fiber mesh fabric are glued overlapping each other at the upper end of the wall surfaces to be insulated with the aid of the respective resin plaster used and pulled smooth.
  • the tracks of the fiberglass mesh are now on the surveys of mineral wool insulation boards and form a reference plane for example, from top to bottom going partially applied resin plasters.
  • a second layer of plaster is often so thin that the granular components accumulate in the light troughs between the fabric knots, while these or coarser aggregate grains are coated from a priming coat with only a thin film, similar to a paint.
  • the layer thicknesses vary locally between about 0.3 mm to about 1 mm.
  • the surfaces of the insulation boards are wavy, so that in the relevant review of the adhesive strength of the plaster layer on the insulation material only a portion of the surface is subjected to transverse stress, while another, not insignificant part of the surface is subjected to shear. It is advantageous if, in particular, the insulation boards lying outside in a thermal insulation composite system are provided with adhesion-promoting coatings or impregnations. As such, for example silicate dispersion systems have been reinforced, which are sprayed onto the surface of the insulation boards.
  • the sprayed dispersions or impregnations either roll off the ridges in droplet form or, due to their surface tensions, stick in pits of the fiber clump and only their upper layers flow into the pits from.
  • the elevations are hardly effectively coated or impregnated or the coatings or impregnations are only connected to the outermost fibers and thus remain mechanically largely ineffective.
  • the expired coating or impregnation material collects between the bumps in thick layers where there is segregation due to possible sedimentation, which can also reduce the transverse tensile strength of these layers.
  • a significant reduction of the consumption of coating or impregnating material is possible by a planar design of the large surfaces, at the same time the coating or impregnation materials can be anchored more effectively in the near-surface zones.
  • FIG. 1 shows a portion of a secondary web for the formation of insulating elements.
  • FIG. 2 shows a first embodiment of a sandwich-type insulating element in a plan view;
  • Fig. 3 shows a second embodiment of a sandwich-type insulating element in a plan view
  • Fig. 4 a plurality of insulating elements in a perspective view as part of a thermal insulation composite system.
  • the secondary nonwoven 1 shows a secondary nonwoven fabric 1 with two main surfaces arranged opposite one another and running parallel to one another, and four auxiliary surfaces 3 extending substantially at right angles to the main surfaces 2, three of which are shown pictorially in FIG.
  • the secondary nonwoven 1 consists of binder-bound mineral fibers, which have a course substantially perpendicular to the main surfaces 2. In the region of the main surfaces 2, the mineral fibers, not shown, are substantially flat, inclined at a slight angle and / or oriented parallel to the main surfaces 2.
  • the secondary web 1 has 2 markings 4 on the main surfaces.
  • the markings 4 are formed as color imprints or generated by thermal energy, for example by a laser beam or a heating roller. In the latter embodiments, the thermal energy of the color change of the binder, with which the mineral fibers are bound.
  • Fig. 1 dash-dotted lines 5 are shown, along which the secondary web 1 in individual insulation elements 6 is divided.
  • the secondary web 1 is formed from a non-illustrated primary web, which is deposited meandering on a conveyor, not shown.
  • the individual meanders 7 are shown in FIG. 1 in the region of the auxiliary surface 3.
  • the insulating elements 6 have two oppositely arranged and parallel to each other large surfaces with four substantially perpendicular thereto aligned aligned side surfaces, wherein at least a portion of Main surface 2 of the secondary web 1 as a side surface 8 of the insulating element 6 and two mutually parallel minor surfaces 3 of the secondary web 1 are formed as large surfaces 9 of the insulating element 6.
  • the two parallel large surfaces 9 of the insulating element are formed with a relative to two perpendicular thereto extending side surfaces 8 greater length.
  • the markings 4 are thus arranged in the region of the side surfaces 8 of the insulating element 6, wherein the oppositely disposed side surfaces 8 of the insulating element have differently formed markings 4.
  • the markers may have a different color.
  • the secondary web 1 is divided transversely to its longitudinal direction in strip-shaped insulating elements 6 or in its longitudinal direction in at least two insulating material 6. Due to the orientation of the mineral fibers in the secondary web 1, the insulating elements 6 in the region of their side surfaces 8 on a different compressibility. The different compressibility in the side surfaces 8 of the insulating elements is adjusted by a different depth removal of flat in the region of the main surfaces 2 of the secondary web 1, flat and / or parallel to the main surfaces 2 extending mineral fibers.
  • the secondary nonwoven 1 according to FIG. 1 additionally has, in the region of a main surface 2, a coating 10 which may be formed as an impregnation, coloring and / or as an adhesive.
  • the coating 10 is applied to the main surface 2 of the secondary web 1 before dividing the secondary web 1 into insulating elements 6.
  • the secondary web 1 In the production of the secondary web 1 is - as already stated - provided réellependeln a non-illustrated primary nonwoven meandering, wherein the primary web is suspended in the conveying direction of the secondary web 1, as shown in Fig. 1. However, it is also possible to deviate the primary web deviating from this at right angles to the conveying direction of the secondary web 1.
  • the thus formed secondary web 1 is then fed to a curing oven, not shown, in which a binder contained on the secondary web 1 is cured before splitting the secondary web 1 in insulating elements 6.
  • a curing oven not shown
  • a binder contained on the secondary web 1 is cured before splitting the secondary web 1 in insulating elements 6.
  • unevenness On the main surfaces 2 of the secondary web 1 as it passes through the curing oven resulting unevenness are removed before splitting the secondary web 1 in insulating elements 6, in particular sawed off, cut off and / or sanded.
  • the secondary web 1 and thus the insulating elements 6 to be produced therefrom are calibrated in the removal of the unevenness with respect to their thickness aligned parallel to the surface normal of the main surfaces, preferably to a maximum deviation over the main surface of a maximum of ⁇ 2 mm.
  • the insulation elements are calibrated with respect to their thickness, length and width with an identical tolerance.
  • FIGS. 2 and 3 are plan views of an insulating element 11th
  • the insulating element 11 according to FIG. 2 has a high compressive strength, combined with a high shear strength in the region of the side surfaces 8.
  • the insulating element 11 according to FIG. 2 is relatively thin Areas 12, in which the mineral fibers are flat, inclined and / or aligned parallel to the side surfaces 18 of the insulating element 11 extending.
  • Fig. 3 shows an insulating element 11 with a high compressibility in the area of the side surfaces 18 of the insulating element 11 and in the central region, so that there is a sandwich-like insulating element 11 with different compressible layers.
  • Fig. 4 shows the arrangement of three insulating elements 6 in association, to form a composite thermal insulation system for insulating a building outer wall, which is not shown in Fig. 4.
  • the insulation material elements 6 shown in FIG. 4 are formed from a secondary nonwoven fabric 1 according to FIG. 1 and have a back-side large surface 9 ', which faces the building exterior wall, not shown, and is adhesively bonded to the building exterior wall via an adhesive (not shown).
  • the opposite large surface 9 is formed opposite to the receiving a usually provided in a thermal insulation system exterior plaster.
  • the markings 4 indicate the orientation of the insulating elements 6 in the dressing and facilitate the processing of the insulating elements 6 of importance here are the areas 12 of the insulating elements 6, which have an increased compressibility, so that compensated over the areas 12 deviations from the perpendicularity of the insulating elements 6 can be.
  • fasteners such as adhesive
  • the insulating elements 6 consist of stone fibers.

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Abstract

L'invention concerne un procédé pour réaliser un élément en matériau isolant en fibres minérales, notamment en laine de roche et/ou en laine de verre. Selon ce procédé, les fibres minérales sont fabriquées à partir d'une matière fondue et elles sont placées sur un dispositif de transport en tant que non-tissé primaire. Le non-tissé primaire est pendu perpendiculairement à son sens longitudinal et placé en tant que non-tissé secondaire avec deux surfaces principales opposées et parallèles et quatre surfaces auxiliaires sensiblement perpendiculaires à celles-ci. Le non-tissé est ensuite déplacé de telle sorte que les fibres minérales prennent sensiblement une position perpendiculaire aux surfaces principales de grande dimension du non-tissé secondaire et, dans la zone des surfaces principales, soient plates, plates inclinées et/ou parallèles aux surfaces principales. L'invention vise à perfectionner ledit procédé et à créer un système calorifuge composite de ce type à propriétés thermiques et isolantes améliorées, dans lequel notamment le raccordement de rangées voisines d'éléments isolants présente une étanchéité élevée, les avantages de systèmes calorifuges composites connus étant conservés. A cet effet, le non-tissé secondaire est séparé en éléments isolants individuels qui comportent chacun deux surfaces de grande dimension opposées parallèles et quatre faces latérales sensiblement perpendiculaires aux premières. Au moins une partie d'une face principale du non-tissé secondaire forme une face latérale de l'élément isolant et deux faces auxiliaires parallèles du non-tissé secondaire forment une surface de grande dimension de l'élément isolant.
PCT/EP2006/005956 2005-06-21 2006-06-21 Procede pour realiser un element en materiau isolant en fibres minerales et systeme calorifuge composite comprenant plusieurs elements en materiau isolant WO2006136389A1 (fr)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11111372B2 (en) 2017-10-09 2021-09-07 Owens Corning Intellectual Capital, Llc Aqueous binder compositions
US11136451B2 (en) 2017-10-09 2021-10-05 Owens Corning Intellectual Capital, Llc Aqueous binder compositions
CN116024733A (zh) * 2023-01-29 2023-04-28 龙口市丽波绝缘材料有限公司 一种无纺布及其制备方法
US11813833B2 (en) 2019-12-09 2023-11-14 Owens Corning Intellectual Capital, Llc Fiberglass insulation product

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099213A1 (fr) * 2001-06-02 2002-12-12 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Procede de production de plaques isolantes de toiture, plaques isolantes de toiture et dispositif utilise pour l'application de ce procede

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099213A1 (fr) * 2001-06-02 2002-12-12 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Procede de production de plaques isolantes de toiture, plaques isolantes de toiture et dispositif utilise pour l'application de ce procede

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11111372B2 (en) 2017-10-09 2021-09-07 Owens Corning Intellectual Capital, Llc Aqueous binder compositions
US11136451B2 (en) 2017-10-09 2021-10-05 Owens Corning Intellectual Capital, Llc Aqueous binder compositions
US11813833B2 (en) 2019-12-09 2023-11-14 Owens Corning Intellectual Capital, Llc Fiberglass insulation product
CN116024733A (zh) * 2023-01-29 2023-04-28 龙口市丽波绝缘材料有限公司 一种无纺布及其制备方法

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