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ES8402430A1 - Procedimiento y aparato para la fabricacion de fibras-opticas. - Google Patents

Procedimiento y aparato para la fabricacion de fibras-opticas.

Info

Publication number
ES8402430A1
ES8402430A1 ES518408A ES518408A ES8402430A1 ES 8402430 A1 ES8402430 A1 ES 8402430A1 ES 518408 A ES518408 A ES 518408A ES 518408 A ES518408 A ES 518408A ES 8402430 A1 ES8402430 A1 ES 8402430A1
Authority
ES
Spain
Prior art keywords
fabrication
optical fibres
raw materials
fibres
crucibles
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
Application number
ES518408A
Other languages
English (en)
Other versions
ES518408A0 (es
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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of ES518408A0 publication Critical patent/ES518408A0/es
Publication of ES8402430A1 publication Critical patent/ES8402430A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/80—Non-oxide glasses or glass-type compositions
    • C03B2201/82—Fluoride glasses, e.g. ZBLAN glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/80—Non-oxide glasses or glass-type compositions
    • C03B2201/84—Halide glasses other than fluoride glasses, i.e. Cl, Br or I glasses, e.g. AgCl-AgBr "glass"
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/13—Drawing solid optical fibre directly from a hollow preform from a hollow glass tube containing glass-forming material in particulate form, e.g. to form the core by melting the powder during drawing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Glass Compositions (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

PROCEDIMIENTO Y APARATO PARA LA FABRICACION DE PORTADORES FISICOS PARA LOS SISTEMAS DE TELECOMUNICACIONES OPTICAS, EN PARTICULAR AUN PROCESO Y A UN APARATO PARA LA FABRICACION DE FIBRAS OPTICAS. EL PROCEDIMIENTO COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PONEN LOS MATERIALES CONSTITUTIVOS DEL NUCLEO Y DE LA CUBIERTA DE LA FIBRA, RESPECTIVAMENTE, EN UN PRIMER CRISOL Y ENTRE EL PRIMER Y UN SEGUNDO CRISOL, DESPUES DE HABERLOS PURIFICADO Y MEZCLADO PARA OBTENER UNA COMPOSICION HOMOGENEA EN CADA PUNTO, SEGUNDA, SE VITRIFICAN LOS MATERIALES NO VITRIFICADOS Y SE PURIFICAN MAS, POR DIFUSION TERMICA, LOS MATERIALES YA VITRIFICADOS; Y POR ULTIMO, SE COMIENZA LA HILATURA DE LA FIBRA LLEVANDO LA ZONA CON TOBERA Y MENISCO DE LOS CRISOLES A LA TEMPERATURA DE ABLANDAMIENTO DE LOS MATERIALES DE BASE Y DEL SEGUNDO CRISOL Y COMPENSANDO LUEGO EL CONSUMO DE MATERIAL EMPLEADO ENLA FIBRA HILADA.
ES518408A 1981-12-22 1982-12-21 Procedimiento y aparato para la fabricacion de fibras-opticas. Expired ES8402430A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68655/81A IT1145605B (it) 1981-12-22 1981-12-22 Apparecchiatura e procedimento per la produzione di fibre ottiche

Publications (2)

Publication Number Publication Date
ES518408A0 ES518408A0 (es) 1984-01-16
ES8402430A1 true ES8402430A1 (es) 1984-01-16

Family

ID=11310179

Family Applications (1)

Application Number Title Priority Date Filing Date
ES518408A Expired ES8402430A1 (es) 1981-12-22 1982-12-21 Procedimiento y aparato para la fabricacion de fibras-opticas.

Country Status (10)

Country Link
EP (1) EP0082517B1 (es)
JP (1) JPS5941932B2 (es)
AT (1) ATE18661T1 (es)
AU (1) AU536495B2 (es)
BR (1) BR8207118A (es)
DE (2) DE82517T1 (es)
DK (1) DK547582A (es)
ES (1) ES8402430A1 (es)
IT (1) IT1145605B (es)
NO (1) NO155930C (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250112B1 (en) 1999-06-03 2001-06-26 Corning Incorporated Method of controlling an extrusion of glass to make an optical fiber
EP1099669A1 (en) * 1999-11-04 2001-05-16 Corning Incorporated Flow control for optical fiber fabrication using the double crucible technique
US6550279B1 (en) 2000-09-01 2003-04-22 Corning Incorporated Process for drawing optical fiber from a multiple crucible apparatus with a thermal gradient

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1496223A (fr) * 1966-08-19 1967-09-29 Saint Gobain Procédé et dispositif pour la fabrication de fibres dites
US3791806A (en) * 1969-12-30 1974-02-12 Nippon Selfoc Co Ltd Continuous production of light-conducting glass fibers with ion diffusion
GB1340849A (en) * 1972-04-06 1973-12-19 Standard Telephones Cables Ltd Optical fibres
JPS5323166B2 (es) * 1973-08-22 1978-07-13
JPS5813135B2 (ja) * 1975-02-10 1983-03-11 日清製粉株式会社 ホゾンセイ オ ユウスル ユデメンルイ ノ セイゾウホウ
JPS5393847A (en) * 1977-01-27 1978-08-17 Nippon Sheet Glass Co Ltd Production method of light fiber
US4277271A (en) * 1978-04-21 1981-07-07 Eotec Corporation Method of manufacturing graded index optical fibers
US4289516A (en) * 1979-10-04 1981-09-15 Eotec Corporation Low loss optical fibers
JPS6025108B2 (ja) * 1980-03-12 1985-06-17 満 首藤 低含水率食品、餌飼料等の保存処理方法及び装置

Also Published As

Publication number Publication date
AU9133082A (en) 1983-06-30
JPS5941932B2 (ja) 1984-10-11
IT1145605B (it) 1986-11-05
DE82517T1 (de) 1983-12-08
EP0082517B1 (en) 1986-03-19
NO824217L (no) 1983-06-23
DE3270048D1 (en) 1986-04-24
ATE18661T1 (de) 1986-04-15
NO155930C (no) 1987-06-24
EP0082517A1 (en) 1983-06-29
NO155930B (no) 1987-03-16
DK547582A (da) 1983-06-23
JPS58110441A (ja) 1983-07-01
BR8207118A (pt) 1983-10-11
IT8168655A0 (it) 1981-12-22
AU536495B2 (en) 1984-05-10
ES518408A0 (es) 1984-01-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010402