EP1280966B1 - Vorformling für die isolierung und verfahren zu seiner herstellung - Google Patents

Vorformling für die isolierung und verfahren zu seiner herstellung Download PDF

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Publication number
EP1280966B1
EP1280966B1 EP01928138A EP01928138A EP1280966B1 EP 1280966 B1 EP1280966 B1 EP 1280966B1 EP 01928138 A EP01928138 A EP 01928138A EP 01928138 A EP01928138 A EP 01928138A EP 1280966 B1 EP1280966 B1 EP 1280966B1
Authority
EP
European Patent Office
Prior art keywords
glass
preform
net
wool
support
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.)
Expired - Lifetime
Application number
EP01928138A
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English (en)
French (fr)
Other versions
EP1280966A1 (de
Inventor
Filippo Amadio
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Individual
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Individual
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Publication of EP1280966A1 publication Critical patent/EP1280966A1/de
Application granted granted Critical
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/07—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like

Definitions

  • the present invention relates to thermal and acoustic insulation obtained by means of continuous glass fiber.
  • continuous glass fiber can be used without any decay in a temperature range of 950°C to 1150°C; a "softening" phase begins only at about 1300°C and continues until 1520°C: after having reached this temperature, the glass begins to melt.
  • this material can be used in fields in which medium-low working temperatures are reached as e.g. electrical appliances (stoves, refrigerators or generally motor powered devices), boilers, mufflers for internal combustion engines, etc.
  • the body to be insulated is wrapped with a surrounding preform with thermal and sound insulating properties.
  • the preform is obtained by two processes:
  • These filaments are not continuous, but they can break forming separated filaments resembling needles.
  • a molded insulation product is known produced by means of a process for forming a thermal insulation layer which include advancing a multi-filament strand of continuous filaments through a nozzle, to separate the filaments from each other to form a continuous filament wool, applying a binder to the filaments, placing a charge comprising the wool in a mold and molding the charge to form the insulation layer.
  • the charge comprises a container formed from a polymer film.
  • EP-A-531767 it is known a device for adsorption of acoustic and/or hydrodynamic waves, in which a conical, wedge-shaped or pyramidal external circumferential surface, which is constructed as a network, knitted or knotted from a weatherproof material such as rubber or glass fibre, is filled with a fibrous material.
  • the external surface takes the form of a wedge or a pyramid to provide an acoustic dampening effect.
  • the object of the present invention is to propose a heat and sound insulating preform, which can have different conformation in relation to its use.
  • Another object of the present invention is to propose a preform, which is not harmful to people.
  • a further object of the present invention is to propose a preform obtained by using only one component, i.e. glass.
  • the glass fiber is covered with a silane starch to allow its workability as well as for shipment and storage needs.
  • a tool obtained by the Applicant using the air-cushion generated by a suitable ejecting nozzle, manages to "inflate” the strand of glass fiber, thus forming a mass of glass fiber resembling wool with highly insulating properties.
  • the so obtained glass wool is formed by innumerous continuous threads, having their own elasticity. These continuous threads do not release particles in the air and do not have any "needle" effect while being touched.
  • the separation is not regular, i.e. it does not form paired parallel threads but the threads .are disposed in a curvilinear or straight way, so that they intersect each other producing maximum volume.
  • Each thread keeps it own elasticity (though reduced because it is proportional to the cross-sectional area) thus giving the flock a particular softness because of the repeated elastic reaction movement following a compression exerted by any mechanical action thereon (either caused by a human hand or by the metallic structure of a machine).
  • a vibrating wall is dampened by a more or less thick flock with any possible shape; handling a glass fiber flock does not require for the operator any safety care by means of particular anti-pollution devices.
  • the glass thread is continuous and therefore does not have any needle-like part.
  • the thickness of the glass thread is 25 ⁇ m, does not spread in the ambient air and therefore is not inhaled, does not produce chemical vapors or exhalation of any type.
  • This softness property obtained with am homogeneous capillary fabric performs the task of keeping air within small spaces and prevents the underlying surface from scattering heat (in other words it prevents temperature drops and the necessity to spend energy to re-integrate it).
  • the melting temperature of the glass fiber is about 1.200°C, therefore it can be easily used at temperatures below this value thus allowing a large number of applications.
  • Blowing in the glass wool through a glass net makes it possible to obtain any desired density and, at the same time, to create a false wall defined by that part of glass net which does not match any real wall. This false wall keeps the otherwise free-flowing material.
  • the net can be stiffened with a selected substance, starch for instance, at least in the external part forming the false wall.
  • the net can be compacted until it becomes like a woven material.
  • a layer of material preferably metallic such as aluminum, may be applied at least to the surface of the shell which does not match with any wall, so as to avoid any air passage from inside the shell to outside, and vice versa. In this way, a shield is obtained which keeps the air within the preform.
  • the preform proposed includes glass wool and a net, made of the same material as the glass wool, which are held together to form geometrical shapes without the use of any glue and/or impregnating substances.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)
  • Nonwoven Fabrics (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Exhaust Silencers (AREA)
  • Reinforced Plastic Materials (AREA)
  • Paints Or Removers (AREA)
  • Glass Compositions (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Claims (7)

  1. Verfahren zur Herstellung eines isolierenden Vorformlings, der eine Masse aus Wolle entsprechenden Glasfasern umfasst, wobei die Glaswolle durch extreme Volumenvergrößerung der Glasfasern durch Erhöhen des Volumens der Glasfasern so viel wie möglich erhalten wurde, und einen Träger zum Halten der Glaswolle aufweist, mit den folgenden Schritten:
    Aufblasen eines Stranges der Glasfasern mit Hilfe eines von einer Düse erzeugten Luftstrahles, um auf diese Weise die Masse der Glasfasern zu bilden;
    Vorsehen des Trägers für die aufgeblasenen Glasfasern;
    dadurch gekennzeichnet, dass der Träger von einem Netz gebildet wird, das aus dem gleichen Material wie die Glaswolle hergestellt ist und von einem Strang aus nicht-volumenvergrößertem Glas in der Form eines Stranges aus Glasfasern gebildet wird, wobei die Masse der Glasfasern und das Netz ohne Hilfe eines Klebers und/oder von imprägnierenden Substanzen zur Ausbildung von geometrischen Formen zusammengehalten werden und wobei der Träger dem Vorformling eine seiner Verwendung entsprechende Gestalt verleiht, und dass der Vorformling durch Blasen in die Glaswolle durch das aus den Glasfasersträngen hergestellte Netz erhalten wird.
  2. Verfahren nach Anspruch 2, bei dem das Netz mit Hilfe von Stärke versteift wird.
  3. Isolierender Vorformling, der durch das Verfahren nach Anspruch 1 oder 2 erhältlich ist und eine Masse aus Wolle entsprechenden Glasfasern umfasst, die durch extreme Volumenvergrößerung von Glasfasern durch Erhöhen des Volumens der Glasfasern so viel wie möglich erhalten wurde, und einen Träger zum Halten der Glaswolle aufweist, dadurch gekennzeichnet, dass der Träger aus einem Netz geformt ist, das aus dem gleichen Material wie die Glaswolle hergestellt ist und von einem Strang aus nicht-volumenvergrößertem Glas in der Form eines Stranges von Glasfasern gebildet wird, wobei die Wolle entsprechende Masse der Glasfasern und das Netz ohne Hilfe von Kleber und/oder imprägnierenden Substanzen zur Ausbildung von geometrischen Formen zusammengehalten werden, so dass die Gestalt des Vorformlings seiner Verwendung entspricht, und dass der Vorformling durch Blasen in die Glaswolle durch das aus den Glasfasersträngen hergestellte Netz erhalten wurde.
  4. Vorformling nach Anspruch 3, dadurch gekennzeichnet, dass das Netz zur Ausbildung eines textilen Materiales kompaktiert ist.
  5. Vorformling nach Anspruch 3, dadurch gekennzeichnet, dass mindestens der Teil des Netzes, der keiner wirklichen Wand entspricht, mit Hilfe einer ausgewählten Substanz versteift ist.
  6. Vorformling nach Anspruch 3, dadurch gekennzeichnet, dass mindestens der Teil des Netzes, der keiner wirklichen Wand entspricht, mit einer Materialschicht bedeckt ist, um einen Austritt von Luft aus dem Inneren des Vorformlings nach außen und umgekehrt zu verhindern.
  7. Vorformling nach Anspruch 6, dadurch gekennzeichnet, dass die Materialschicht metallisch ist.
EP01928138A 2000-05-09 2001-05-08 Vorformling für die isolierung und verfahren zu seiner herstellung Expired - Lifetime EP1280966B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2000BO000265A IT1321250B1 (it) 2000-05-09 2000-05-09 Mantello isolante
ITBO200265 2000-05-09
PCT/IB2001/000776 WO2001086084A1 (en) 2000-05-09 2001-05-08 Insulating preform

Publications (2)

Publication Number Publication Date
EP1280966A1 EP1280966A1 (de) 2003-02-05
EP1280966B1 true EP1280966B1 (de) 2004-09-29

Family

ID=11438459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01928138A Expired - Lifetime EP1280966B1 (de) 2000-05-09 2001-05-08 Vorformling für die isolierung und verfahren zu seiner herstellung

Country Status (7)

Country Link
EP (1) EP1280966B1 (de)
AT (1) ATE278074T1 (de)
AU (1) AU5500201A (de)
DE (1) DE60106009T2 (de)
ES (1) ES2225529T3 (de)
IT (1) IT1321250B1 (de)
WO (1) WO2001086084A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445942B (sv) * 1982-04-06 1986-07-28 Volvo Ab Ljuddempare samt sett och anordning for framstellning av denna
EP0146249B1 (de) * 1983-11-18 1989-01-18 TBA Industrial Products Limited Glasfaserprodukte
SE468327B (sv) * 1991-03-22 1992-12-14 Reidar Berglund Vaermeisoleringselement, innefattande ett paasartat hoelje perifert foersett med oeppningar och i hoeljet ett loest blaasbart material, samt ett foerfarande foer dess tillverkning
EP0531767A1 (de) * 1991-09-10 1993-03-17 Rainer Schmieg Vorrichtung zur Absorption von Wellen
DE69504776T2 (de) * 1994-07-15 1999-05-27 Owens-Corning Sweden Ab, Falkenberg Vorgeformtes schalldämmendes Material für Auspuffschalldämpfer einer Brennkraftmaschine
JP2001505960A (ja) * 1996-12-02 2001-05-08 オウェンス コーニング モールド成形された絶縁製品および連続ウール繊維を用いたその製造

Also Published As

Publication number Publication date
EP1280966A1 (de) 2003-02-05
IT1321250B1 (it) 2004-01-08
AU5500201A (en) 2001-11-20
WO2001086084A1 (en) 2001-11-15
ITBO20000265A1 (it) 2001-11-09
DE60106009T2 (de) 2006-03-02
DE60106009D1 (de) 2004-11-04
ATE278074T1 (de) 2004-10-15
ES2225529T3 (es) 2005-03-16

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