JPS5520249A - Optical fiber base material producing furnace - Google Patents

Optical fiber base material producing furnace

Info

Publication number
JPS5520249A
JPS5520249A JP9285178A JP9285178A JPS5520249A JP S5520249 A JPS5520249 A JP S5520249A JP 9285178 A JP9285178 A JP 9285178A JP 9285178 A JP9285178 A JP 9285178A JP S5520249 A JPS5520249 A JP S5520249A
Authority
JP
Japan
Prior art keywords
carbon
furnace
gas
sec
oxidation
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.)
Pending
Application number
JP9285178A
Other languages
English (en)
Inventor
Takao Edahiro
Kozo Yoshimura
Gotaro Tanaka
Hideo Itozaki
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.)
Sumitomo Electric Industries Ltd
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9285178A priority Critical patent/JPS5520249A/ja
Publication of JPS5520249A publication Critical patent/JPS5520249A/ja
Pending 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
    • C03B37/029—Furnaces therefor
    • 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]
    • C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • C03B37/0146—Furnaces therefor, e.g. muffle tubes, furnace linings
    • 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
    • C03B2205/63—Ohmic resistance heaters, e.g. carbon or graphite resistance heaters
    • 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
    • C03B2205/70—Draw furnace insulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
JP9285178A 1978-07-29 1978-07-29 Optical fiber base material producing furnace Pending JPS5520249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9285178A JPS5520249A (en) 1978-07-29 1978-07-29 Optical fiber base material producing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9285178A JPS5520249A (en) 1978-07-29 1978-07-29 Optical fiber base material producing furnace

Publications (1)

Publication Number Publication Date
JPS5520249A true JPS5520249A (en) 1980-02-13

Family

ID=14065920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9285178A Pending JPS5520249A (en) 1978-07-29 1978-07-29 Optical fiber base material producing furnace

Country Status (1)

Country Link
JP (1) JPS5520249A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003505321A (ja) * 1999-07-16 2003-02-12 ドゥラカ ファイバー テクノロジー ベー ヴェー ガラスプリフォームを製造するための方法、及び前記プリフォームから得られた光ファイバー
EP1394125A1 (en) * 2002-08-30 2004-03-03 FITEL USA CORPORATION (a Delaware Corporation) Optical Fiber with Reduced E-Band and L-Band Loss Peaks and its method of manufacture
KR100655531B1 (ko) 2004-12-03 2006-12-08 엘에스전선 주식회사 발열체 산화 방지를 위한 광섬유 모재 제조용 로
EP3572381A1 (en) * 2018-05-23 2019-11-27 Draka Comteq B.V. A device, system and method for forming a core-rod for optical fibers

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003505321A (ja) * 1999-07-16 2003-02-12 ドゥラカ ファイバー テクノロジー ベー ヴェー ガラスプリフォームを製造するための方法、及び前記プリフォームから得られた光ファイバー
JP4885392B2 (ja) * 1999-07-16 2012-02-29 ドゥラカ ファイバー テクノロジー ベー ヴェー ガラスプリフォームを製造するための方法、及び前記プリフォームから得られた光ファイバー
EP1394125A1 (en) * 2002-08-30 2004-03-03 FITEL USA CORPORATION (a Delaware Corporation) Optical Fiber with Reduced E-Band and L-Band Loss Peaks and its method of manufacture
US6865327B2 (en) 2002-08-30 2005-03-08 Fitel Usa Corp. Method of making optical fiber with reduced E-band and L-band loss peaks
CN100429539C (zh) * 2002-08-30 2008-10-29 Ofs飞泰尔公司 制造具有低e-波段和l-波段损耗波峰的光纤的方法
KR100655531B1 (ko) 2004-12-03 2006-12-08 엘에스전선 주식회사 발열체 산화 방지를 위한 광섬유 모재 제조용 로
EP3572381A1 (en) * 2018-05-23 2019-11-27 Draka Comteq B.V. A device, system and method for forming a core-rod for optical fibers
NL2020974B1 (en) * 2018-05-23 2019-12-02 Draka Comteq Bv A device, system and method for forming a core rod for optical fibers
US11407670B2 (en) 2018-05-23 2022-08-09 Draka Comteq B.V. Device, system, and method for forming a core-rod for optical fibers

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