JPS5324429A - Sealing of spinning furnaces for glass fibers - Google Patents

Sealing of spinning furnaces for glass fibers

Info

Publication number
JPS5324429A
JPS5324429A JP9980576A JP9980576A JPS5324429A JP S5324429 A JPS5324429 A JP S5324429A JP 9980576 A JP9980576 A JP 9980576A JP 9980576 A JP9980576 A JP 9980576A JP S5324429 A JPS5324429 A JP S5324429A
Authority
JP
Japan
Prior art keywords
glass fibers
sealing
spinning
furnaces
spinning furnaces
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
JP9980576A
Other languages
Japanese (ja)
Other versions
JPS596824B2 (en
Inventor
Motohiro Nakahara
Yuichi Toda
Kozo Yoshimura
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
Sumitomo Electric Industries Ltd
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 JP9980576A priority Critical patent/JPS596824B2/en
Publication of JPS5324429A publication Critical patent/JPS5324429A/en
Publication of JPS596824B2 publication Critical patent/JPS596824B2/en
Expired 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
    • C03B2205/62—Heating means for drawing
    • C03B2205/64—Induction furnaces, i.e. HF/RF coil, e.g. of the graphite or zirconia susceptor type
    • 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

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 obtain glass fibers of improved quality, by improving the airtightness of the furnace with the help of a bellows-shaped seal at the top of the spinning furnace.
JP9980576A 1976-08-20 1976-08-20 Glass fiber spinning furnace sealing method Expired JPS596824B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9980576A JPS596824B2 (en) 1976-08-20 1976-08-20 Glass fiber spinning furnace sealing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9980576A JPS596824B2 (en) 1976-08-20 1976-08-20 Glass fiber spinning furnace sealing method

Publications (2)

Publication Number Publication Date
JPS5324429A true JPS5324429A (en) 1978-03-07
JPS596824B2 JPS596824B2 (en) 1984-02-14

Family

ID=14257077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9980576A Expired JPS596824B2 (en) 1976-08-20 1976-08-20 Glass fiber spinning furnace sealing method

Country Status (1)

Country Link
JP (1) JPS596824B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6138481A (en) * 1998-01-27 2000-10-31 Sumitomo Electric Industries, Inc. Glassrod elongation heating furnance having double bellows
WO2003059831A1 (en) * 2002-01-18 2003-07-24 Photonium Oy Sealing a fiber drawing furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6138481A (en) * 1998-01-27 2000-10-31 Sumitomo Electric Industries, Inc. Glassrod elongation heating furnance having double bellows
WO2003059831A1 (en) * 2002-01-18 2003-07-24 Photonium Oy Sealing a fiber drawing furnace

Also Published As

Publication number Publication date
JPS596824B2 (en) 1984-02-14

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