WO2001086084A1 - Preforme isolante - Google Patents

Preforme isolante Download PDF

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Publication number
WO2001086084A1
WO2001086084A1 PCT/IB2001/000776 IB0100776W WO0186084A1 WO 2001086084 A1 WO2001086084 A1 WO 2001086084A1 IB 0100776 W IB0100776 W IB 0100776W WO 0186084 A1 WO0186084 A1 WO 0186084A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
preform
net
wool
glass wool
Prior art date
Application number
PCT/IB2001/000776
Other languages
English (en)
Inventor
Filippo Amadio
Original Assignee
Filippo Amadio
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Filippo Amadio filed Critical Filippo Amadio
Priority to AT01928138T priority Critical patent/ATE278074T1/de
Priority to DE60106009T priority patent/DE60106009T2/de
Priority to EP01928138A priority patent/EP1280966B1/fr
Priority to AU55002/01A priority patent/AU5500201A/en
Publication of WO2001086084A1 publication Critical patent/WO2001086084A1/fr

Links

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: - according to a first process, countless filaments forming the glass fiber are oriented; then they are soaked with phenol starch, so as to maintain the desired volume (i.e. maintain the capability for keeping air, which is the actual thermal insulator) and density, and finally they are glued onto a paper or aluminium support (according to the intended use) , so as to allow them to be handled and applied; according to a second process, basaltic rock is melted to obtain many filaments .
  • the so obtained filaments are excessively fragile and do not keep their own volume, so they are impregnated with phenolic resins to obtain either preformed blocks, which matches the cavities and fill them thus giving them insulating properties , or mats of various thickness and density, which are placed in a desired position.
  • These filaments are not continuous, but they can break forming separated filaments resembling needles .
  • 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.
  • an insulating preform formed by a mass of glass fiber resembling wool, or glass wool, obtained by extreme bulking of glass fiber, and a support for the glass wool, including a net, also of glass wool, and defined by a non-bulked thread of glass, said glass wool and the net being kept together, so as to compose geometrical figures without using glues and/or impregnating substances .
  • the characteristic particular to the invention are set forth in the following description of two preferred embodiments of the proposed shell.
  • 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 ⁇ , 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 .
  • a net has been made from non-bulked glass strand to form a kind of container or false wall. In this way it is possible to form mats with the desired dimension using only glass.
  • some applications in the field of exhaust pipe mufflers production for motorcars would not allow to insert the insulating glass wool in accordance with the density requirements, since not all the insulating walls are available .
  • the operator while producing compression molded mufflers, the operator necessarily has to gain access therein by keeping one of the shells raised. Any material introduced therein which has not been previously given a stable shape will tend to come out of the seat where it was placed.
  • 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 above mentioned net takes a selected spatial arrangement .
  • 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, is 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)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (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)
  • Glass Compositions (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Paints Or Removers (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention concerne une préforme isolante. Celle-ci se compose d'une masse de fils de verre ressemblant à de la laine, obtenue par la volumisation de fibres de verre et d'un support de laine de verre. Ce support se présente sous la forme d'un filet du même matériau de laine de verre et défini par un toron de verre non texturé. La laine de verre et le filet sont maintenus ensemble de manière à fabriquer des formes géométriques sans colles et/ou substance d'imprégnation.
PCT/IB2001/000776 2000-05-09 2001-05-08 Preforme isolante WO2001086084A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT01928138T ATE278074T1 (de) 2000-05-09 2001-05-08 Vorformling für die isolierung und verfahren zu seiner herstellung
DE60106009T DE60106009T2 (de) 2000-05-09 2001-05-08 Vorformling für die isolierung und verfahren zu seiner herstellung
EP01928138A EP1280966B1 (fr) 2000-05-09 2001-05-08 Preforme isolant et procede de fabrication
AU55002/01A AU5500201A (en) 2000-05-09 2001-05-08 Insulating preform

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000BO000265A IT1321250B1 (it) 2000-05-09 2000-05-09 Mantello isolante
ITBO2000A000265 2000-05-09

Publications (1)

Publication Number Publication Date
WO2001086084A1 true WO2001086084A1 (fr) 2001-11-15

Family

ID=11438459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000776 WO2001086084A1 (fr) 2000-05-09 2001-05-08 Preforme isolante

Country Status (7)

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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569471A (en) * 1982-04-06 1986-02-11 Ab Volvo Container through which a gas flows, preferably a muffler, with fiberglass filling and method and apparatus for filling the same
US4774985A (en) * 1983-11-18 1988-10-04 Tba Industrial Products Ltd. Apparatus for filling automotive muffler with glass fibers
WO1992016785A1 (fr) * 1991-03-22 1992-10-01 Reidar Berglund Element thermo-isolant et procede d'isolation thermique
EP0531767A1 (fr) * 1991-09-10 1993-03-17 Rainer Schmieg Dispositif d'absorption d'ondes
EP0692616A1 (fr) * 1994-07-15 1996-01-17 Owens-Corning Fiberglas Corporation Matériau absorbant acoustique préfabriqué pour silencieux d'échappement de moteur
WO1998024615A1 (fr) * 1996-12-02 1998-06-11 Owens Corning Produits d'isolation moules et procede de fabrication de ces produits utilisant une laine a fil continu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569471A (en) * 1982-04-06 1986-02-11 Ab Volvo Container through which a gas flows, preferably a muffler, with fiberglass filling and method and apparatus for filling the same
US4774985A (en) * 1983-11-18 1988-10-04 Tba Industrial Products Ltd. Apparatus for filling automotive muffler with glass fibers
WO1992016785A1 (fr) * 1991-03-22 1992-10-01 Reidar Berglund Element thermo-isolant et procede d'isolation thermique
EP0531767A1 (fr) * 1991-09-10 1993-03-17 Rainer Schmieg Dispositif d'absorption d'ondes
EP0692616A1 (fr) * 1994-07-15 1996-01-17 Owens-Corning Fiberglas Corporation Matériau absorbant acoustique préfabriqué pour silencieux d'échappement de moteur
WO1998024615A1 (fr) * 1996-12-02 1998-06-11 Owens Corning Produits d'isolation moules et procede de fabrication de ces produits utilisant une laine a fil continu

Also Published As

Publication number Publication date
ES2225529T3 (es) 2005-03-16
ITBO20000265A1 (it) 2001-11-09
AU5500201A (en) 2001-11-20
EP1280966A1 (fr) 2003-02-05
EP1280966B1 (fr) 2004-09-29
DE60106009D1 (de) 2004-11-04
ATE278074T1 (de) 2004-10-15
IT1321250B1 (it) 2004-01-08
DE60106009T2 (de) 2006-03-02

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