FR2436111A1 - Procede pour retreindre un tube de verre pour former un barreau plein - Google Patents

Procede pour retreindre un tube de verre pour former un barreau plein

Info

Publication number
FR2436111A1
FR2436111A1 FR7533195A FR7533195A FR2436111A1 FR 2436111 A1 FR2436111 A1 FR 2436111A1 FR 7533195 A FR7533195 A FR 7533195A FR 7533195 A FR7533195 A FR 7533195A FR 2436111 A1 FR2436111 A1 FR 2436111A1
Authority
FR
France
Prior art keywords
tube
rotated
blank
heated
furnace
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
FR7533195A
Other languages
English (en)
Other versions
FR2436111B1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7533195A priority Critical patent/FR2436111A1/fr
Publication of FR2436111A1 publication Critical patent/FR2436111A1/fr
Application granted granted Critical
Publication of FR2436111B1 publication Critical patent/FR2436111B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/051—Re-forming tubes or rods by gravity, e.g. sagging
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/047—Re-forming tubes or rods by drawing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/057—Re-forming tubes or rods by fusing, e.g. for flame sealing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/07—Re-forming tubes or rods by blowing, e.g. for making electric bulbs
    • C03B23/073—Vacuum-blowing
    • 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
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma- or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
    • 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
    • C03B37/029—Furnaces therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/60—Optical fibre draw furnaces
    • C03B2205/62—Heating means for drawing
    • C03B2205/64—Induction furnaces, i.e. HF/RF coil, e.g. of the graphite or zirconia susceptor type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

Le tube est maintenu à ses deux extrémités et est chauffé dans un four annulaire; le tube et le four sont animés d'un mouvement relatif de translation. Le tube peut être revêtu intérieurement d'un matériau de composition différente de la sienne. Applications à l'élaboration de fibres optiques pour télécommunications.
FR7533195A 1975-10-30 1975-10-30 Procede pour retreindre un tube de verre pour former un barreau plein Granted FR2436111A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7533195A FR2436111A1 (fr) 1975-10-30 1975-10-30 Procede pour retreindre un tube de verre pour former un barreau plein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7533195A FR2436111A1 (fr) 1975-10-30 1975-10-30 Procede pour retreindre un tube de verre pour former un barreau plein

Publications (2)

Publication Number Publication Date
FR2436111A1 true FR2436111A1 (fr) 1980-04-11
FR2436111B1 FR2436111B1 (fr) 1981-04-30

Family

ID=9161830

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7533195A Granted FR2436111A1 (fr) 1975-10-30 1975-10-30 Procede pour retreindre un tube de verre pour former un barreau plein

Country Status (1)

Country Link
FR (1) FR2436111A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037648A1 (fr) * 1980-03-17 1981-10-14 Corning Glass Works Procédé pour la fabrication de fibres optiques
EP0171103A1 (fr) * 1984-07-13 1986-02-12 Koninklijke Philips Electronics N.V. Procédé de fabrication d'ébauches massives en verre à partir d'ébauches creuses
FR2589461A1 (fr) * 1985-10-31 1987-05-07 Fibres Optiques Ind Procede de fabrication d'elements etires a base de silice et elements obtenus
FR2621035A1 (fr) * 1987-09-29 1989-03-31 Comp Generale Electricite Procede de fabrication de fibre optique avec preforme obtenue par retreint
FR2657865A1 (fr) * 1990-02-05 1991-08-09 Lenoane Georges Procedes de fabrication de haute precision de capillaires, d'embouts de raccordement et de dispositifs de raccordement pour fibres optiques.
WO1992021627A1 (fr) * 1991-05-31 1992-12-10 Heraeus Quarzglas Gmbh Procede de fabrication de preformes allongees
US5192350A (en) * 1990-02-02 1993-03-09 Alcatel Fibres Optiques Method of flame finishing optical fiber preforms
WO2000034193A1 (fr) * 1998-12-10 2000-06-15 Heraeus Quarzglas Gmbh & Co. Kg Procede de fabrication d'un tube en materiau vitreux, en particulier en verre de quartz

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037648A1 (fr) * 1980-03-17 1981-10-14 Corning Glass Works Procédé pour la fabrication de fibres optiques
EP0171103A1 (fr) * 1984-07-13 1986-02-12 Koninklijke Philips Electronics N.V. Procédé de fabrication d'ébauches massives en verre à partir d'ébauches creuses
US4746345A (en) * 1984-07-13 1988-05-24 U.S. Philips Corp. Method of manufacturing solid glass preforms from hollow preforms
FR2589461A1 (fr) * 1985-10-31 1987-05-07 Fibres Optiques Ind Procede de fabrication d'elements etires a base de silice et elements obtenus
WO1989002876A1 (fr) * 1987-09-29 1989-04-06 Compagnie Generale D'electricite Procede de fabrication de fibre optique avec preforme obtenue par retreint
EP0310505A1 (fr) * 1987-09-29 1989-04-05 Alcatel Procédé de fabrication de fibre optique avec préforme obtenue par rétreint
FR2621035A1 (fr) * 1987-09-29 1989-03-31 Comp Generale Electricite Procede de fabrication de fibre optique avec preforme obtenue par retreint
US5192350A (en) * 1990-02-02 1993-03-09 Alcatel Fibres Optiques Method of flame finishing optical fiber preforms
FR2657865A1 (fr) * 1990-02-05 1991-08-09 Lenoane Georges Procedes de fabrication de haute precision de capillaires, d'embouts de raccordement et de dispositifs de raccordement pour fibres optiques.
EP0441696A1 (fr) * 1990-02-05 1991-08-14 France Telecom Procédés de fabrication de haute précision de capillaires, d'embouts de raccordement et de dispositifs de raccordement pour fibres optiques
WO1992021627A1 (fr) * 1991-05-31 1992-12-10 Heraeus Quarzglas Gmbh Procede de fabrication de preformes allongees
WO2000034193A1 (fr) * 1998-12-10 2000-06-15 Heraeus Quarzglas Gmbh & Co. Kg Procede de fabrication d'un tube en materiau vitreux, en particulier en verre de quartz
US6516636B1 (en) 1998-12-10 2003-02-11 Heraeus Quarzglas Gmbh & Co. Kg Method for producing a tube made of quartz glass using low internal pressure and control of diameters

Also Published As

Publication number Publication date
FR2436111B1 (fr) 1981-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse