EP0450323A1 - Procédé de fabrication d'un produit de fibres mélangées sans liant - Google Patents

Procédé de fabrication d'un produit de fibres mélangées sans liant Download PDF

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Publication number
EP0450323A1
EP0450323A1 EP91103286A EP91103286A EP0450323A1 EP 0450323 A1 EP0450323 A1 EP 0450323A1 EP 91103286 A EP91103286 A EP 91103286A EP 91103286 A EP91103286 A EP 91103286A EP 0450323 A1 EP0450323 A1 EP 0450323A1
Authority
EP
European Patent Office
Prior art keywords
fibers
glassy
polycrystalline
fiber
al2o3
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.)
Withdrawn
Application number
EP91103286A
Other languages
German (de)
English (en)
Inventor
Michael E. Schupp
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.)
RATH (DEUTSCHLAND) GmbH
Original Assignee
RATH (DEUTSCHLAND) GmbH
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 RATH (DEUTSCHLAND) GmbH filed Critical RATH (DEUTSCHLAND) GmbH
Publication of EP0450323A1 publication Critical patent/EP0450323A1/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • Glassy fibers are produced by melting raw materials with high contents of Al2O3, SiO2 and with low proportions of TiO2, Fe2O3, alkaline earths and alkalis by the melt jet by supplying large amounts of air transversely or parallel to the direction of the jet or by hitting fast rotating disks or Drum is being frayed.
  • the resulting fibers are collected in appropriate collectors, are in the form of wool and can also be preformed as mats or nonwovens by compression and needling.
  • the starting materials are produced by chemical processes (e.g. sol-gel or precursor), the spinning solution is fiberized and these fibers are subjected to a subsequent firing process in which the X-ray amorphous starting products are converted into crystalline forms such as mullite, corundum, transition alumina etc.
  • the classification temperatures of glassy fibers are a maximum of 1400 to 1450 o C. However, the application temperature limits of these products are significantly lower, which is due to the high shrinkage of a maximum of 4% at the classification temperature. In contrast, both the KT and the AGT of the polycrystalline fibers are significantly higher and can be located at about 1850 o C for example with a fiber with 95% Al2O3 and 5% SiO2. However, because of the much higher price for the polycrystalline fibers, their increased use - also from the point of view of possible energy savings - is not economically viable in many cases.
  • the object of the application is the production of wool and mats from ceramic fibers with higher application temperature limits than that of the conventional glassy fibers.
  • the polycrystalline fibers are blown into the fiber stream of the former and optimally mixed by correspondingly high amounts of air before the fibers settle on the collector bond.
  • the quantitative control of the mixture components is carried out by gravimetric metering of the polycrystalline fibers in relation to the melting rate of the glassy fibers.
  • Another solution to the problem is to line furnaces with vacuum-formed parts, in which glassy and polycrystalline fibers are mixed in various proportions in aqueous solutions, mixed with binders and fillers, molded in special shapes by suction technology and thermally treated.
  • the fiber products obtained in this way are considerably heavier than fiber mats and require careful anchoring.
  • the mixed fiber and the glassy fiber were baked at 1400 ° C. for 100 hours. Thereafter, 10% shrinkage was determined for the glassy fiber and only 4% for the mixed fiber.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inorganic Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Glass Compositions (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP91103286A 1990-03-23 1991-03-05 Procédé de fabrication d'un produit de fibres mélangées sans liant Withdrawn EP0450323A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4009407A DE4009407A1 (de) 1990-03-23 1990-03-23 Verfahren zur herstellung von bindemittelfreien anorganischen mischfaserprodukten
DE4009407 1990-03-23

Publications (1)

Publication Number Publication Date
EP0450323A1 true EP0450323A1 (fr) 1991-10-09

Family

ID=6402936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103286A Withdrawn EP0450323A1 (fr) 1990-03-23 1991-03-05 Procédé de fabrication d'un produit de fibres mélangées sans liant

Country Status (4)

Country Link
EP (1) EP0450323A1 (fr)
JP (1) JPH04228635A (fr)
CS (1) CS78191A2 (fr)
DE (1) DE4009407A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714373A1 (fr) * 1993-12-28 1995-06-30 Produits Refractaires Eléments thermo-isolants à base de fibres céramiques réfractaires thermiquement stabilisées.
CN103168124A (zh) * 2010-10-26 2013-06-19 3M创新有限公司 使用可熔性无机共混纤维幅材的贯穿部阻火方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090103A (en) * 1957-10-24 1963-05-21 Carborundum Co Heat resistant fibrous products containing ceramic fibers and method of making the same
FR2306957A1 (fr) * 1975-04-09 1976-11-05 Frenzelit Asbestwerk Matieres d'isolement et d'etancheite
EP0273391A2 (fr) * 1986-12-27 1988-07-06 Denki Kagaku Kogyo Kabushiki Kaisha Nappe de fibres d'alumine résistant à la chaleur
WO1989007674A1 (fr) * 1988-02-17 1989-08-24 Oy Scanwoven Ab Article non tisse fabrique en materiau thermoresistant, procede de fabrication d'un tel article et appareil de realisation dudit procede

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2223683B2 (de) * 1972-05-16 1975-01-23 Vki-Rheinhold & Mahla Ag, 6800 Mannheim Verfahren und Vorrichtung zur Herstellung von MineraHaser-Wirrvliesen
US4435468A (en) * 1982-02-12 1984-03-06 Kennecott Corp. Seamless ceramic fiber composite articles and method and apparatus for their production

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090103A (en) * 1957-10-24 1963-05-21 Carborundum Co Heat resistant fibrous products containing ceramic fibers and method of making the same
FR2306957A1 (fr) * 1975-04-09 1976-11-05 Frenzelit Asbestwerk Matieres d'isolement et d'etancheite
EP0273391A2 (fr) * 1986-12-27 1988-07-06 Denki Kagaku Kogyo Kabushiki Kaisha Nappe de fibres d'alumine résistant à la chaleur
WO1989007674A1 (fr) * 1988-02-17 1989-08-24 Oy Scanwoven Ab Article non tisse fabrique en materiau thermoresistant, procede de fabrication d'un tel article et appareil de realisation dudit procede

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714373A1 (fr) * 1993-12-28 1995-06-30 Produits Refractaires Eléments thermo-isolants à base de fibres céramiques réfractaires thermiquement stabilisées.
EP0666348A1 (fr) * 1993-12-28 1995-08-09 Societe Europeenne Des Produits Refractaires Eléments thermo-isolants à base de fibres céramiques réfractaires thermiquement stabilisées
US5631084A (en) * 1993-12-28 1997-05-20 Societe Europeenne Des Produits Refractaires Thermally-insulating components made of thermally-stabilized refractory ceramic fibers
CN103168124A (zh) * 2010-10-26 2013-06-19 3M创新有限公司 使用可熔性无机共混纤维幅材的贯穿部阻火方法
US8636076B2 (en) 2010-10-26 2014-01-28 3M Innovative Properties Company Method of firestopping a through-penetration using a fusible inorganic blended-fiber web
CN103168124B (zh) * 2010-10-26 2016-01-20 3M创新有限公司 使用可熔性无机共混纤维幅材的贯穿部阻火方法

Also Published As

Publication number Publication date
JPH04228635A (ja) 1992-08-18
CS78191A2 (en) 1991-10-15
DE4009407A1 (de) 1991-09-26

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