JPS557538A - Production of soot-form glass rod - Google Patents

Production of soot-form glass rod

Info

Publication number
JPS557538A
JPS557538A JP7903378A JP7903378A JPS557538A JP S557538 A JPS557538 A JP S557538A JP 7903378 A JP7903378 A JP 7903378A JP 7903378 A JP7903378 A JP 7903378A JP S557538 A JPS557538 A JP S557538A
Authority
JP
Japan
Prior art keywords
layer
refractive index
raw
soot
form glass
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
JP7903378A
Other languages
Japanese (ja)
Other versions
JPS5719058B2 (en
Inventor
Takao Edahiro
Shoichi Sudo
Yuichi Masuda
Toru Kuwabara
Yuji Kameo
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 JP7903378A priority Critical patent/JPS557538A/en
Publication of JPS557538A publication Critical patent/JPS557538A/en
Publication of JPS5719058B2 publication Critical patent/JPS5719058B2/ja
Granted 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
    • C03B37/012—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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/06—Concentric circular ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C03B2207/22—Inert gas details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To efficiently obtain a soot-form glass rod with refractive index difference for production of light transmission glass fiber by setting an inert gas supply inlet between adjacent supply inlets for raw gases of different compsns. and by controlling diffusion and mixing of the raw gases. CONSTITUTION:A gasifiable cpd. such as SiCl4 as raw material for quartz glass, O2, H2 and a dopant for controlling refractive index are burned with multi-tube burner 1 to form glass fine particles 2, and soot-form glass body 4 is deposited on rotating quartz rod 3 and grown in the axial direction. At this time, raw gas such as GeCl4 or POCl3 for raising refractive index is supplied to first layer 11 of burner 1, raw gas such as PBr3 for lowering refractive index to third layer 13, H2 to 5th layer 15, O2 to 6th layer 16, inert gas to second layer 12 and fourth layer 14. By regulating the flow rate of the inert gas, diffusion and mixing of the raw gases are adjusted to control refractive index difference.
JP7903378A 1978-06-28 1978-06-28 Production of soot-form glass rod Granted JPS557538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7903378A JPS557538A (en) 1978-06-28 1978-06-28 Production of soot-form glass rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7903378A JPS557538A (en) 1978-06-28 1978-06-28 Production of soot-form glass rod

Publications (2)

Publication Number Publication Date
JPS557538A true JPS557538A (en) 1980-01-19
JPS5719058B2 JPS5719058B2 (en) 1982-04-20

Family

ID=13678606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7903378A Granted JPS557538A (en) 1978-06-28 1978-06-28 Production of soot-form glass rod

Country Status (1)

Country Link
JP (1) JPS557538A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193047A (en) * 1985-02-22 1986-08-27 Nec Corp Microhardness measuring instrument
JPS632137U (en) * 1986-06-24 1988-01-08
US5230960A (en) * 1990-01-12 1993-07-27 Gun Ei Chemical Industry Co., Ltd. Activated carbon fiber structure and process for producing the same
US5254396A (en) * 1990-01-26 1993-10-19 Petoca Ltd. Carbon fiber structure and process for producing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151625A (en) * 1978-05-17 1979-11-29 Nippon Telegr & Teleph Corp <Ntt> Torch for synthesizing glass fine particles
JPS557508A (en) * 1978-06-26 1980-01-19 Nippon Telegr & Teleph Corp <Ntt> Production of focusing type optical fiber base material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151625A (en) * 1978-05-17 1979-11-29 Nippon Telegr & Teleph Corp <Ntt> Torch for synthesizing glass fine particles
JPS557508A (en) * 1978-06-26 1980-01-19 Nippon Telegr & Teleph Corp <Ntt> Production of focusing type optical fiber base material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193047A (en) * 1985-02-22 1986-08-27 Nec Corp Microhardness measuring instrument
JPS632137U (en) * 1986-06-24 1988-01-08
US5230960A (en) * 1990-01-12 1993-07-27 Gun Ei Chemical Industry Co., Ltd. Activated carbon fiber structure and process for producing the same
US5254396A (en) * 1990-01-26 1993-10-19 Petoca Ltd. Carbon fiber structure and process for producing the same

Also Published As

Publication number Publication date
JPS5719058B2 (en) 1982-04-20

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