JPS5494049A - Mother material producing apparatus for optical fibers - Google Patents

Mother material producing apparatus for optical fibers

Info

Publication number
JPS5494049A
JPS5494049A JP50678A JP50678A JPS5494049A JP S5494049 A JPS5494049 A JP S5494049A JP 50678 A JP50678 A JP 50678A JP 50678 A JP50678 A JP 50678A JP S5494049 A JPS5494049 A JP S5494049A
Authority
JP
Japan
Prior art keywords
reactor
preset
gas flow
pressure
rate
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
JP50678A
Other languages
Japanese (ja)
Other versions
JPS6232139B2 (en
Inventor
Tatsuo Izawa
Shoichi Sudo
Fumiaki Hanawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 filed Critical Nippon Telegraph and Telephone Corp
Priority to JP50678A priority Critical patent/JPS5494049A/en
Publication of JPS5494049A publication Critical patent/JPS5494049A/en
Publication of JPS6232139B2 publication Critical patent/JPS6232139B2/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]
    • C03B37/0144—Means for after-treatment or catching of worked reactant gases

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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To effect uniform size and density by controlling the flow rate of exhaust gases to a preset rate with the use of a valve, which is mounted in an exit, so that porous glass may be grown under stable conditions. CONSTITUTION:Porous glass 22 is grown in a reactor 23. A valve 26 connected with an exit 24 is arranged such that the gas flow rate is metered by a gas flow meter 27 arranged in the same piping and is held at a preset rate. A pressure gauge 30 is attached to the reactor 23 to take out the pressure in the reactor as electric signals thereby to control the preset pressure. The discharge of water vapor, chroline or hydrogen chrolide generated as a result of the glass composing reaction is held at a preset level, and the gas flow in the reactor 23 is stabilized so that the O.D. and density of the rod can be uniformalized.
JP50678A 1978-01-09 1978-01-09 Mother material producing apparatus for optical fibers Granted JPS5494049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50678A JPS5494049A (en) 1978-01-09 1978-01-09 Mother material producing apparatus for optical fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50678A JPS5494049A (en) 1978-01-09 1978-01-09 Mother material producing apparatus for optical fibers

Publications (2)

Publication Number Publication Date
JPS5494049A true JPS5494049A (en) 1979-07-25
JPS6232139B2 JPS6232139B2 (en) 1987-07-13

Family

ID=11475643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50678A Granted JPS5494049A (en) 1978-01-09 1978-01-09 Mother material producing apparatus for optical fibers

Country Status (1)

Country Link
JP (1) JPS5494049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626737A (en) * 1979-08-14 1981-03-14 Nippon Telegr & Teleph Corp <Ntt> Exhaust adjuster for optical fiber base material manufacturing apparatus

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0510102Y2 (en) * 1986-07-18 1993-03-12
JPS642940U (en) * 1987-06-25 1989-01-10
JPH0543159Y2 (en) * 1987-06-25 1993-10-29
JPH0547220Y2 (en) * 1987-08-17 1993-12-13
JPH0540190Y2 (en) * 1987-10-29 1993-10-13
JPH01151548U (en) * 1988-03-31 1989-10-19
JPH0544440Y2 (en) * 1988-04-02 1993-11-11
JPH0218847U (en) * 1988-07-21 1990-02-07
JPH0460056A (en) * 1990-06-28 1992-02-26 Asahi Utsudo Tec Kk Sound insulating wooden floor material
JPH0460057A (en) * 1990-06-28 1992-02-26 Asahi Utsudo Tec Kk Sound insulating wooden floor material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626737A (en) * 1979-08-14 1981-03-14 Nippon Telegr & Teleph Corp <Ntt> Exhaust adjuster for optical fiber base material manufacturing apparatus
JPS6240300B2 (en) * 1979-08-14 1987-08-27 Nippon Denshin Denwa Kk

Also Published As

Publication number Publication date
JPS6232139B2 (en) 1987-07-13

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