JPS5313435A - Drawing system for optical fiber - Google Patents

Drawing system for optical fiber

Info

Publication number
JPS5313435A
JPS5313435A JP8728176A JP8728176A JPS5313435A JP S5313435 A JPS5313435 A JP S5313435A JP 8728176 A JP8728176 A JP 8728176A JP 8728176 A JP8728176 A JP 8728176A JP S5313435 A JPS5313435 A JP S5313435A
Authority
JP
Japan
Prior art keywords
optical fiber
drawing system
laminator
preform
fluctuations
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
JP8728176A
Other languages
Japanese (ja)
Inventor
Katsuyuki Imoto
Satoshi Aoki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8728176A priority Critical patent/JPS5313435A/en
Publication of JPS5313435A publication Critical patent/JPS5313435A/en
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
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/60—Optical fibre draw furnaces
    • C03B2205/80—Means for sealing the preform entry or upper end of the furnace
    • C03B2205/81—Means for sealing the preform entry or upper end of the furnace using gas
    • 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
    • C03B2205/90—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles
    • 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
    • C03B2205/90—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles
    • C03B2205/91—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles by controlling the furnace gas flow rate into or out of the furnace
    • 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
    • C03B2205/90—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles
    • C03B2205/98—Manipulating the gas flow through the furnace other than by use of upper or lower seals, e.g. by modification of the core tube shape or by using baffles using annular gas inlet distributors

Landscapes

  • Engineering & Computer Science (AREA)
  • 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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To prepare an optical fiber, which has a uniform diameter and a high quality, by making laminator the gas flow on the outer peripheral surface of a preform to reduce the fluctuations in the melting temperature.
JP8728176A 1976-07-23 1976-07-23 Drawing system for optical fiber Pending JPS5313435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8728176A JPS5313435A (en) 1976-07-23 1976-07-23 Drawing system for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8728176A JPS5313435A (en) 1976-07-23 1976-07-23 Drawing system for optical fiber

Publications (1)

Publication Number Publication Date
JPS5313435A true JPS5313435A (en) 1978-02-07

Family

ID=13910391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8728176A Pending JPS5313435A (en) 1976-07-23 1976-07-23 Drawing system for optical fiber

Country Status (1)

Country Link
JP (1) JPS5313435A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051632A (en) * 1983-08-31 1985-03-23 Furukawa Electric Co Ltd:The Preparation of optical fiber
JPS62153137A (en) * 1985-12-27 1987-07-08 Sumitomo Electric Ind Ltd How to draw optical fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051632A (en) * 1983-08-31 1985-03-23 Furukawa Electric Co Ltd:The Preparation of optical fiber
JPS62153137A (en) * 1985-12-27 1987-07-08 Sumitomo Electric Ind Ltd How to draw optical fiber

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