EP1559845A1 - Procédé de fabrication d' une nappe isolante en fibres minérales et nappe isolante - Google Patents

Procédé de fabrication d' une nappe isolante en fibres minérales et nappe isolante Download PDF

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Publication number
EP1559845A1
EP1559845A1 EP05001906A EP05001906A EP1559845A1 EP 1559845 A1 EP1559845 A1 EP 1559845A1 EP 05001906 A EP05001906 A EP 05001906A EP 05001906 A EP05001906 A EP 05001906A EP 1559845 A1 EP1559845 A1 EP 1559845A1
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EP
European Patent Office
Prior art keywords
mineral fibers
carrier layer
web
large surface
fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05001906A
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German (de)
English (en)
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EP1559845B1 (fr
Inventor
Gerd-Rüdiger Dr.-Ing. Klose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Rockwool Mineralwoll GmbH and Co OHG
Original Assignee
Deutsche Rockwool Mineralwoll GmbH and Co OHG
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Application filed by Deutsche Rockwool Mineralwoll GmbH and Co OHG filed Critical Deutsche Rockwool Mineralwoll GmbH and Co OHG
Priority to PL05001906T priority Critical patent/PL1559845T3/pl
Publication of EP1559845A1 publication Critical patent/EP1559845A1/fr
Application granted granted Critical
Publication of EP1559845B1 publication Critical patent/EP1559845B1/fr
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Classifications

    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H1/40—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
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • 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
    • E04B1/7654—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 comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—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 comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E04B1/7662—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 comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
    • 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

Definitions

  • the invention relates to a method for producing an insulating element from mineral fibers bound with binders, in particular from rock wool and / or glass wool, wherein the mineral fibers are made from a melt and be stored on a conveyor as a primary web, the primary web oscillated at right angles to its longitudinal extension and as secondary fleece with a core region, which has a course of mineral fibers substantially at right angles or steep to the large surfaces, and at least one edge zone with a course of mineral fibers substantially parallel to the large ones Placed surfaces on a second conveyor and a curing oven is fed to cure the binder and then the secondary web by a separating cut parallel to the large surfaces of the secondary web divided into at least two Dämmstoffbahnen and at least one large surface of a carrier layer is applied.
  • the invention further relates an insulation web of mineral fibers bound with a binder, in particular of mineral wool and / or glass wool produced by the process consisting of a large surface having secondary web with a Kem Society, a course of mineral fibers substantially at right angles or steep to the large surfaces, with a large surface and a resulting when splitting a secondary web in two insulating material webs Separation surface, wherein the mineral fibers in the region of the separation surface at right angles to the interface and in the area of the surface at an angle deviating from 90 ° to the large surface, in particular running parallel to the large surface are arranged, and with a lamination
  • Insulating materials made of vitreous solidified mineral fibers are based on the chemical composition A distinction is made commercially in glass wool and rock wool insulation materials. Both varieties differ in their chemical composition of mineral fibers.
  • the glass wool fibers are made of silicate Melt prepared having large proportions of alkalis and boron oxides, the act as a flux. These melts have a wide processing range on and let themselves by means of rotating bowls, their walls Holes, to relatively smooth and long mineral fibers take off, which is mostly with mixtures of thermosetting phenol-formaldehyde and Urea resins are at least partially bonded.
  • the proportion of these binders in the glass wool insulating materials is for example about 5 to about 10 mass% and is also bounded above by the fact that the character of a non-combustible Insulation should be preserved.
  • the bond can also be made with thermoplastic Binders such as polyacrylates done.
  • the pulp will be more Substances, such as oils in amounts below about 0.4% by mass to Hydrophobization and added for dust retention.
  • the with binders and other additives impregnated mineral fibers are used as fiber web on a collected slowly running conveyor. In most cases, the mineral fibers several fiberizing devices successively on this conveyor stored.
  • the mineral fibers in a plane are largely directionless oriented. But they store very flat on top of each other. By slight vertical pressure will increase the fiber web to the desired thickness and over the conveying speed of the conveyor simultaneously to the required Compacted density and the binders cured in a hardening furnace by means of hot air, so that the structure of the fibrous web is fixed.
  • the primary fleece consists of relatively coarse fiber flakes, in their core areas also higher binder concentrations are present, while in the peripheral areas weaker or not bound mineral fibers prevail.
  • the mineral fibers are aligned in the fiber flakes approximately in the transport direction.
  • Stone wool insulation have contents of binders of about 2 to about 4.5% by mass on. With this small amount of binders is also only a part of the mineral fibers in contact with the binders.
  • a binder are mainly mixtures used from phenolic, formaldehyde and urea resins. A part of Resins are already substituted by polysaccharides.
  • Inorganic binders As with the glass wool insulating materials, they are only for special applications used the insulating materials, since these are much brittle than the largely elastically to plastically reacting organic binder, what the aspired Character of insulating materials made of mineral fibers as elastic-springy building materials accommodates. As additives are usually high-boiling mineral oils in Shares of 0.2% by mass, in exceptional cases also used about 0.4% by mass.
  • the primary nonwovens by means of a pendulum suspended conveyor placed across another conveyor, which is the production one of a plurality of obliquely superimposed individual layers existing endless fiber web allows.
  • a horizontal in the conveying direction directed and a simultaneous vertical compression can be the fiber web be unfolded more or less intensively.
  • the axes of the main folds are aligned horizontally and thus run transversely to the conveying direction.
  • the forces acting on the fiber web cause binder-rich core zones are compacted and unfolded into narrow lamellae, resulting in main folds with folds in flanks.
  • the less bound or binder-free mineral fibers are slightly rolled in the interstices of the folds and between the lamellae and thereby slightly compressed.
  • the fine structure thus consists of relatively stiff slats, which have a certain flexibility due to their numerous folds, but are relatively stiff parallel to the folding axes and form spaces which are easily compressible.
  • the compressive strength and the transverse tensile strength of the fibrous web clearly increase in comparison with a normal, in particular extremely flat, arrangement of the mineral fibers.
  • the flexural strength of the fibrous web or of the sections separated from it in the form of plates or Dämmfilzen is therefore significantly higher in the transverse direction than in the production direction.
  • the bending strength in the transverse direction is on the order of three to four times as high as the bending strength in the direction of production.
  • Lamellae are usually 50 mm to 200 mm wide and 10 mm to 140 mm thick insulating material elements that are cut off in the direction of production by an at least correspondingly thick fiber web.
  • the mineral fibers in the fiber web or in the particularly solid lamellae are oriented at right angles to the cut surfaces, which are now the large surfaces of the lamellae.
  • Slats with densities of more than about 75 kg / m 3 are therefore suitable as tensile and pressure resistant insulating layer on the outer walls of buildings and can be glued on the outer wall and then plastered with a reinforced plaster layer.
  • Such insulation is referred to as a thermal insulation composite system.
  • the pressure-resistant lamella is sufficiently flexible in the longitudinal direction so that it can also be glued onto curved components.
  • Slat plates in the bulk density range of about 30 to about 100 kg / m 3 , preferably ⁇ 60 kg / m 3 are separated in the desired thickness in the production direction as lamellae of between about 75 to 250 mm thick fiber web lying flat transverse be glued to a closed carrier material.
  • the individual slats are pressed together only under slight pressure and usually form no closed insulation layer.
  • the specific amounts of, for example, dispersion adhesives are very low.
  • composite films can be combined with the surface of the lamellae by heating a film layer which is often only about 0.03 to 0.06 mm thick.
  • slat plates can also be made of glass wool fiber webs produce mineral fibers running at right angles to the large surfaces.
  • the smooth mineral fibers are extremely parallel in these lamellar plates directed towards each other and very easy to compress against lateral forces, especially as the bulk densities are generally lower than those of the lamellar plates Stone wool insulation.
  • Lamellae can also be used to produce lamellar webs, the widths of, for example 500 mm or 1000 mm, thicknesses of about 20 mm to about 100 mm as well Have lengths of several meters. Due to the orientation of the mineral fibers at right angles to the large surfaces can be flat surfaces, for example of large ventilation ducts with a flat and relatively solid Insulating layer provided.
  • the lamellar sheets are designed to be compressible and Therefore, in the direction of the width of the slats, i. in the longitudinal direction of the slat webs readily guided around pipelines with small diameters become and give a uniform sheathing there.
  • the lamellae of the lamellar webs are arranged on a carrier layer and connected to the carrier layer, especially glued.
  • a carrier layer in particular metal, Metal-plastic composite or metal-paper-plastic composite films used, additionally reinforced by lattice structure of various fibers could be.
  • the slat webs that can be produced from individual slats are limited in terms of their material thickness by the weight of the slats and, among other things, by the weight of the slats, limited adhesive strength on the carrier layer and by the maximum material thickness of the secondary web.
  • the lamellae are disc-wise separated from a mineral fiber web prepared in a conventional manner, in particular a secondary non-woven and adhered with one of the two cut surfaces on the carrier layer, so that the lamellae and thus the lamellae a course of the individual mineral fibers exactly at right angles or at steep angles to the cut surfaces of Lamellae and thus have the large surfaces of the lamella web.
  • the lamellae Depending on the bulk density and the binder contents, the lamellae have a comparatively high transverse tensile strength and at the same time a high compressive strength, so that the lamellae are compressible and in particular compressible in the longitudinal direction of the lamella web.
  • Laminated sheets with gross densities of up to approx. 60 kg / m 3 are therefore also used to insulate round components such as pipes, containers and other shaped surfaces. Due to their sufficiently high compressive strength, even roundness or flatness, lamellar sheets can also wear clothing, for example made of thin sheets, free of thermal bridges, without further support structures.
  • Slat trays and slat plates with a small width allow for Constant force greater deformations than lamellar sheets and lamellar plates with larger width.
  • the possible bending radius of these lamellar webs and lamellar plates decreases with increasing insulation thickness and bulk density.
  • the increasing with decreasing bending radius compression of the inner Zones of the lamellar web or lamellar plate leads to a considerable compression, but also to increase the compressive strength in these zones.
  • slat tracks are therefore suitable as well as solid, but much more expensive to produce Pipe shells as a supporting layer for the casing of pipelines, For example, with smooth or profiled sheets of, for example, steel, aluminum, Plastic films, gypsum or mortar layers.
  • the right angle or at Pipelines radially to the insulated surfaces aligned mineral fibers lead to an increase in the thermal conductivity of the insulating materials such insulating materials, which have or have a laminar fiber structure Pipe shells in which the mineral fibers concentric around the central axis of the Piping are arranged.
  • the production of slats is technically complicated and leads to a low throughput speed of production equipment.
  • the bonding technique is also for the partially heavy slats in the Essentially unsuitable.
  • An adhesive bond between adjacent slats may also be weakened by the fact that in the area of adhesive surfaces loose Mineral fibers or mineral fiber fragments (dust) are present.
  • Laminated lanes are rolled up for storage and transport and with wrapped in a wrapper.
  • the slats at the beginning and at the end a role heavily on shear claimed. After unrolling these slats fall slightly off.
  • the lamellas are even thrown off when the lamellar sheet is allowed, after removal of the sheaths by action Unroll the large restoring forces independently. In this uncontrolled Unwinding action whip the end of the reel through the air, so that already partially detached slats by the acceleration or the strong impact of the end to the ground completely detached.
  • the laminated as individual elements lamellar plates have processing technology the advantage that necessary cuts either along the transverse joints between adjacent slats can be executed or these serve at least as an auxiliary line for the guidance of a cutting tool.
  • the Cross joints can also be marked as a kink on the carrier layer, by folding down the slats, the slat plates in terms of their size to adapt the installation conditions.
  • This orientation of the mineral fibers in the primary web can be done in a separate device carried out, but is suitably made in conjunction with a curing oven.
  • the endless fibrous web is sandwiched between two press belts, of which at least one is movable in the vertical direction, with hot air flows through in the vertical direction.
  • the pressure belts have pressure-resistant elements with holes in which surface areas of the fiber web press in, whereby the surfaces get a profiling.
  • the fibrous web may lead to a further alignment of the mineral fibers, a further compression towards the underlying areas and below Circumstances lead to a slight binder enrichment.
  • the fiber web With the help of the heat energy transferred by the hot air, the fiber web becomes heated with the binding and / or impregnating agents contained therein, so that in the fibrous web is expelled moisture and the binder cure, in which they form connecting films or solids.
  • the fibrous web by solidification of the binder is shown in longitudinal section a structure in which the mineral fibers in the core of the primary nonwoven predominate oriented at right angles to the large surfaces of the endless fibrous web.
  • the mineral fibers are parallel to the large ones Aligned surfaces. Because of the relatively high stiffness of the core of the primary web can the mineral fibers at correspondingly large vertical pressures also mushroom-shaped and / or downwards between the zones with right angles pressed to the large surfaces extending mineral fibers. Remain between the arcuately deflected tracks of the primary web generally small gussets, which have different widths and depths Transverse furrows occur in the two large surfaces of the endless fibrous web.
  • the higher density zones differ with the clearly at right angles to the large surfaces of mineral fibers the intermediate zones with a flat arrangement of mineral fibers.
  • the structure is less uniform than with insulation boards used for manufacturing be used by lamellae. For example, the bending tensile strength lower due to the inhomogeneity of the structure at comparable bulk density.
  • EP 0 867 572 A2 further describes an insulating element made of mineral fibers from a mineral fiber fleece and / or several interconnected Lamellae and at least one applied on a main surface lamination in the form of a foil.
  • This insulating element thus consists of a thin uniform fiber web of flat superimposed and interconnected individual mineral fibers with a material thickness of less than 15 mm and a lamination and several, interconnected slats. The Lamination can be done on both the thin fiber web and the lamellae be upset.
  • the invention has for its object to provide a method for the preparation of an insulating element, and an insulating element further develop such a way that in a simple and inexpensive manner an insulating element can be manufactured which has improved strength characteristics as well as improved thermal conductivity so that the insulating element can be used both in the field of insulation of building facades as well as in the range of curved surfaces.
  • the large surface to be joined to the carrier layer is made flat by removing protrusions and / or unevenness after passing through the curing oven before applying the carrier layer.
  • an insulating element according to the invention is provided for solving the problem that a support layer is disposed on a smooth formed large surface of the secondary web and that the support layer is mounted on the large surface.
  • insulation elements can be produced which are a course of a portion of the mineral fibers parallel to the large Has surfaces, whereby the heat transfer through the insulation in Direction perpendicular to the large surfaces is reduced.
  • These mineral fibers ie in the main direction of the transmission heat losses Aligned mineral fibers, however, increase the thermal conductivity. These increase the perpendicular to the large surfaces running mineral fibers Transverse and compressive strength of the insulating material and reduce the stiffness in parallel to the big surfaces.
  • the secondary web after passing through the curing oven in the area of their machined with the backing layer machined by the Surface is ground, for example, to projections and / or bumps to eliminate.
  • mineral fibers are removed, their orientation is not parallel or perpendicular to the large surface.
  • the process according to the invention can be carried out immediately after the run of the curing oven. In this case, both become great Processed surfaces of the secondary nonwoven and provided with a carrier layer, before the secondary web then parallel and perpendicular to the large Surfaces divided into sections.
  • the secondary nonwoven may be first by parallel and perpendicular to the large surfaces, especially with saws or laser guided cuts, divided into sections, which sections subsequently machined and glued to carrier layers and then rolled up or stored flat on, for example, pallets.
  • the mineral fibers with a steeper Orientation exposed to the large surface thereby increasing the transverse tensile strength the secondary web or the insulating material produced therefrom in Enlarged the area of the large surface, so that even the bond between the large surface and the carrier layer arranged thereon substantially is improved, the carrier layer is laminated to the surface.
  • the heat transfer increases the insulating element.
  • a manufactured according to this invention insulating element is due to the in Area of, opposite to the large surface formed with the carrier layer arranged, usually unbacked large surface at right angles Aligned mineral fibers preferably for the insulation smooth curved Surfaces, such as suitable for pipelines.
  • the mineral fibers at right angles to the large surface may after another Feature of the invention can be increased by the fact that the secondary web or the insulating element precompressed during rolling up and thereby elasticized becomes.
  • the insulating element according to the invention may be provided with a cladding, for example be covered with a cover of a thin sheet, the Cladding preferred on the large surfaces with the parallel thereto Mineral fibers are arranged so that the slightly compressible outer Edge zone below the support layer elastically resilient to the inner surface of the Can adapt trim.
  • a further feature of the invention is provided in at least one large surface, in particular in the surface connected to the carrier layer preferably before winding, in particular at right angles to the longitudinal axis introduced the secondary nonwoven extending incisions and / or recesses become.
  • Such trained insulating elements have the advantage that Their elasticity is improved, allowing them even with larger material thicknesses and associated greater rigidity are rollable or windable. Also could this Insulation elements with this design for the insulation of objects with strongly curved surfaces are used.
  • Figure 1 shows the first section of a plant 1 for producing a web-shaped Insulating element 2 (Figure 2) made of mineral fibers 3.
  • the mineral fibers 3 are made of a silicate material, such as natural and / or made of artificial stones by placing in a cupola 4 the silicate material melted and the melt 5 fed to a fiberizing unit 6 becomes.
  • the fiberizing unit 6 has a plurality of spinning wheels driven in rotation 7, of which in Figure 1, only a spinning wheel 7 is shown.
  • the cupola 4 has on the output side a spout 8, over which the Melt 5 from the cupola 4 flows to the spinning wheels 7.
  • the mineral fibers are the third formed from the melt 5 and collected on a first conveyor belt 9.
  • a primary nonwoven fabric 10 in which the in the fiberizing aggregate 6 binder-added mineral fibers 3 in substantially aligned in the same direction and are arranged laminar.
  • the primary fleece 10 is then via a second conveyor belt 11, which in contrast to the first Conveyor belt 9 is not a collecting conveyor belt but a transport conveyor belt, passed to a downstream processing station 12.
  • the general transport direction of the Primary fleece 10 changed. This change is made from the original one In a longitudinal direction in a transport in the original transverse direction of Primary web 10.
  • the conveying direction is shown in Figure 1 by an arrow 13.
  • the primary web 10 is transported over a roller 14, the purpose of which is the Transport direction of the primary web 10 from a substantially horizontal Change direction in a substantially vertical direction to the primary web 10 supply another processing station 15.
  • This further processing station 15 has two parallel conveyor belts 16, 17th on, between which the primary web 10 is guided.
  • the conveyor belts 16, 17 are arranged pendulum and commute the primary web 10 at right angles to his Longitudinal extent as a secondary web 18 on a further not shown Conveyor on which runs parallel to the conveyor belts 9 and 11.
  • the thus suspended secondary web 18 is then a compression station 19, in which the secondary web 18 is compressed.
  • the compaction station 19 has an upper conveyor belt 20 and a lower conveyor belt 21 on, between which the secondary web 18 is running.
  • the two conveyor belts 20 and 21 of the compression station 19 are arranged pendulum and have in addition to the Function of compaction of secondary web 18 also the function that compacted Secondary nonwoven 18 réellependeln in the longitudinal direction meandering. This commotion the secondary web 18 causes the secondary web 18 in his Middle region has an orientation of the mineral fibers 3, the right angle is aligned to the large surfaces 22, 23.
  • the secondary web 18 has an orientation the mineral fibers 3, which at an angle deviating from the orthogonal to the large surfaces 22, 23 up to a parallel orientation varies relative to these large surfaces 22, 23.
  • This arrangement and Orientation of the mineral fibers 3 in the secondary web 18 results from the pendulum the secondary web 18 following the compression station 19.
  • the suspended secondary web 18 is immediately after the pendulum a Processing station 24 fed to the upper conveyor belt 25 and a lower Has conveyor belt 26 and their conveying speeds compared to the conveying speed the compression station 19 is lower, so that the pendulum Secondary web 18 compressed in its longitudinal direction and the individual Meander ofdonpendelten Sekundärvlieses 18 are pushed together.
  • the processing station 24 is followed by another processing station 27, which also has an upper conveyor belt 28 and a lower conveyor belt 29, between which the suspended secondary web 18 is conveyed.
  • the Processing station 27 has a further reduced conveying speed of the secondary web 18 to the compaction and the homogenization of the continue pendulum Sekundärvlieses 18.
  • the thus prepared secondary web 18 forms an end product that forms of certain insulating elements 2 of mineral fibers 3, such as Insulating boards or insulation sheeting can be further processed as this will be described below with reference to FIG.
  • the meandering unfolded and compressed secondary web 18 is a Hardening furnace 30 supplied by two parallel conveyor belts 31 and 32 are arranged. In the hardening furnace 30, hot air is passed through the conveyors 31, 32 and thus also promoted by the secondary web 18, which hot air in the secondary web 18 for connecting the individual mineral fibers. 3 cures contained binder. Due to the curing of the binder is the Secondary fleece 18 in its geometric form, which it passes through before the curing oven the processing stations 12, 15, 19 and 24 and 27 has received fixed. simultaneously is the secondary web 18 between the conveyor belts 31, 32 of the curing oven 30 compressed.
  • the distance between the two conveyor belts 31, 32 in the curing oven 30 is on the material thickness of the secondary web 18 and adjusted by the conveying speed the conveyor belts 31, 32 in relation to the required amount of hot air to the Binder hardening limited.
  • the secondary web 18 passes through a first Sawing station 33, which has a band saw 34 with a band-shaped saw blade 35, with which saw blade 35, the secondary web 18 by a separating cut divided into two insulating elements 2 parallel to the large surfaces 22, 23 each having a large surface 22, 23 and a substantially coextensive, the respective large surface 22, 23 opposite interface 36 have.
  • the secondary web 18 having a width of 2,400 mm is subsequently by a circular saw with a circular saw blade 37 in the longitudinal direction in four partial webs subdivided, each sub-web ultimately represents an insulating element 2 and has a width of 1,200 m.
  • the carrier layers 39 are in this case for each insulating material web 2 in each case a Kasch michsrolle stocked, wherein the carrier layers 39 with the extraction of the insulating elements 2 deducted from the Kasch michsrolle and glued to the same surface with the insulating elements 2.
  • the insulating elements 2 are wound and packaged.
  • the insulating elements 2 in a predetermined Length measure of the secondary web 18 by a section perpendicular to Cut longitudinal direction of the secondary web 18.
  • the carrier layer 39 is formed as aluminum-polyethylene composite film and forms an outer reinforcement, protective and / or decoration layer.
  • the connection the carrier layer 39 with the insulating element 2 in the laminating station takes place by a highly viscous sprayed onto the insulating element 2 Dispersion adhesive, depending on the required connection between the carrier layer 39 and the insulating element 2 and its adhesive effect is sprayed over the entire surface, selectively or in strips.
  • the carrier layer 39 is arranged on the large surface 22, 23 of the insulating element 2, in the region of which the mineral fibers 3 are arranged parallel to the large surface 22, 23 are.
  • the insulating elements 2 according to Figure 4 are thus characterized characterized in that the Edge zones 101 in the area of the large surfaces 22, 23 have been partially removed are and that the cut surface 115 to achieve a high transverse tensile strength formed in a core region 109 of the insulating element 1 according to FIG is.
  • the insulating elements 2 may be formed as insulating panels and in Dependence on the width of production facilities in many different Dimensions are produced.
  • the insulation elements 2 shown in Figure 4 are formed like a web, wherein the carrier layer 39 on a smooth-formed large surface 22, 23rd is arranged.
  • the carrier layer 39 is on the large surface 22, 23 in the area the edge zone 101 is arranged, which edge zone the mineral fibers 3 in the Substantially parallel to the large surface 22, 23 are arranged to extend.
  • connection between the carrier layer 39 and the edge zone 101 takes place in Trap of a carrier layer 39 of an aluminum-polyethylene composite film thereby, that the aluminum-polyethylene composite foil is heated so that the Plastic content in the composite foil softens and with the large surface 22, 23 bonded in the region of the edge zone 101.
  • the insulating elements 2 according to FIG. 4 are made of a secondary nonwoven 18 a division of the secondary web 18 according to the above description formed, wherein arranged in the secondary web the primary web 10 meandering is. Gaps arise in the deflection areas between the meanders, into which mineral fibers 3 are displaced.
  • edge zone 101 in different material thickness can be removed starting from the large surface 22, 23. hereby the material strength of the edge zone is influenced to the insulating element 2 to adapt to the application.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
  • Glass Compositions (AREA)
  • Formation Of Insulating Films (AREA)
  • Inorganic Insulating Materials (AREA)
  • Thermistors And Varistors (AREA)
EP05001906A 2004-01-31 2005-01-31 Procédé de fabrication d' une nappe isolante en fibres minérales et nappe isolante Active EP1559845B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05001906T PL1559845T3 (pl) 2004-01-31 2005-01-31 Sposób wytwarzania elementu izolacyjnego i element izolacyjny

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102004004954 2004-01-31
DE102004004954 2004-01-31
DE102004008627 2004-02-21
DE102004008627 2004-02-21
DE102004012359 2004-03-13
DE102004012359 2004-03-13

Publications (2)

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EP1559845A1 true EP1559845A1 (fr) 2005-08-03
EP1559845B1 EP1559845B1 (fr) 2007-07-25

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EP (1) EP1559845B1 (fr)
AT (1) ATE368155T1 (fr)
DE (2) DE102005004504A1 (fr)
ES (1) ES2289606T3 (fr)
PL (1) PL1559845T3 (fr)
PT (1) PT1559845E (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008138537A1 (fr) * 2007-05-11 2008-11-20 Rockwool International A/S Procédé de fabrication de laine minérale
DE102007046100A1 (de) * 2007-09-27 2009-04-09 Deutsche Rockwool Mineralwoll Gmbh + Co Ohg Verfahren und Vorrichtung zur Herstellung von Dämmstoffelementen
WO2011072867A1 (fr) * 2009-12-19 2011-06-23 Michael Wolf Composant plat et son utilisation
EP3085525A1 (fr) * 2015-04-21 2016-10-26 Tomisol, Aneta Tabor Matelas isolant lamellaire et ligne de production pour la fabrication d'un matelas isolant lamellaire

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012923A (en) * 1957-09-30 1961-12-12 Owens Corning Fiberglass Corp Fibrous products and method and apparatus for producing same
US4128678A (en) * 1977-04-12 1978-12-05 Fiberglas Canada Limited Heat insulating material and method of and apparatus for the manufacture thereof
WO1988000265A1 (fr) * 1986-06-30 1988-01-14 Rockwool International A/S Procede pour la production en continu de plaques de laine de roche
WO1992010602A1 (fr) * 1990-12-07 1992-06-25 Rockwool International A/S Procede de fabrication de panneaux isolants composes d'elements en fibre minerale en forme de baguettes et reciproquement relies
WO1994016162A1 (fr) * 1993-01-14 1994-07-21 Rockwool International A/S Procede et installation de production d'une bande isolante en fibres minerales, et plaque isolee par fibres minerales
EP0741827B1 (fr) * 1994-01-28 2003-04-02 Rockwool International A/S Procede et element isolant et atelier de fabrication et d'emballage
EP1428953A1 (fr) * 2002-12-12 2004-06-16 Rheinhold & Mahla AG Panneau de délimitation spatiale

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012923A (en) * 1957-09-30 1961-12-12 Owens Corning Fiberglass Corp Fibrous products and method and apparatus for producing same
US4128678A (en) * 1977-04-12 1978-12-05 Fiberglas Canada Limited Heat insulating material and method of and apparatus for the manufacture thereof
WO1988000265A1 (fr) * 1986-06-30 1988-01-14 Rockwool International A/S Procede pour la production en continu de plaques de laine de roche
WO1992010602A1 (fr) * 1990-12-07 1992-06-25 Rockwool International A/S Procede de fabrication de panneaux isolants composes d'elements en fibre minerale en forme de baguettes et reciproquement relies
WO1994016162A1 (fr) * 1993-01-14 1994-07-21 Rockwool International A/S Procede et installation de production d'une bande isolante en fibres minerales, et plaque isolee par fibres minerales
EP0741827B1 (fr) * 1994-01-28 2003-04-02 Rockwool International A/S Procede et element isolant et atelier de fabrication et d'emballage
EP1428953A1 (fr) * 2002-12-12 2004-06-16 Rheinhold & Mahla AG Panneau de délimitation spatiale

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008138537A1 (fr) * 2007-05-11 2008-11-20 Rockwool International A/S Procédé de fabrication de laine minérale
EP1997944A1 (fr) * 2007-05-11 2008-12-03 Rockwool International A/S Procédé pour la fabrication de laine minérale
DE102007046100A1 (de) * 2007-09-27 2009-04-09 Deutsche Rockwool Mineralwoll Gmbh + Co Ohg Verfahren und Vorrichtung zur Herstellung von Dämmstoffelementen
WO2011072867A1 (fr) * 2009-12-19 2011-06-23 Michael Wolf Composant plat et son utilisation
EP3085525A1 (fr) * 2015-04-21 2016-10-26 Tomisol, Aneta Tabor Matelas isolant lamellaire et ligne de production pour la fabrication d'un matelas isolant lamellaire

Also Published As

Publication number Publication date
PT1559845E (pt) 2007-10-18
ATE368155T1 (de) 2007-08-15
DE102005004504A1 (de) 2005-09-15
DE502005001080D1 (de) 2007-09-06
ES2289606T3 (es) 2008-02-01
EP1559845B1 (fr) 2007-07-25
PL1559845T3 (pl) 2007-12-31

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