JPS6428242A - Dummy rod for holding optical fiber preform - Google Patents

Dummy rod for holding optical fiber preform

Info

Publication number
JPS6428242A
JPS6428242A JP18599487A JP18599487A JPS6428242A JP S6428242 A JPS6428242 A JP S6428242A JP 18599487 A JP18599487 A JP 18599487A JP 18599487 A JP18599487 A JP 18599487A JP S6428242 A JPS6428242 A JP S6428242A
Authority
JP
Japan
Prior art keywords
rod
glass
pipe
optical fiber
fiber preform
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
JP18599487A
Other languages
Japanese (ja)
Inventor
Hideo Kakuzen
Manzo Yamaguchi
Hikari Sato
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
Original Assignee
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP18599487A priority Critical patent/JPS6428242A/en
Publication of JPS6428242A publication Critical patent/JPS6428242A/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
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding

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 an inexpensive dummy rod useful in a wire drawing furnace, etc., for an optical fiber preform, etc., without atmospheric pollution, by mechanically connecting specific two rods and covering the whole outer periphery except part thereof with a pipe, such as quartz glass, in a loose fit state. CONSTITUTION:The tip of the first dummy rod 1 formed from a heat-resistant material, (e.g. metal or ceramic) other than quartz glass or multicomponent glass is mechanically connected to the second dummy rod 7 made of quartz (multicomponent) glass with a protrusion 4, pinhole 5, pin 6 made from a heat- resistant material, such as titanium, of the rod 1, etc. Almost the whole outer periphery except the chucking point by a holding tool (B) of the rod 1 is then covered with a pipe 2 made of quartz (multicomponent) glass so as to provide a space (g) present between the pipe 2 and the outer periphery of the rod 1 in a loose fit state and prevent the pipe 2 from moving to the side of the rod 7 with a stopper 3. A preform (A) is then fused and connected to the tip of the rod 7 to form the aimed dummy rod 10 for holding an optical fiber preform.
JP18599487A 1987-07-23 1987-07-23 Dummy rod for holding optical fiber preform Pending JPS6428242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18599487A JPS6428242A (en) 1987-07-23 1987-07-23 Dummy rod for holding optical fiber preform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18599487A JPS6428242A (en) 1987-07-23 1987-07-23 Dummy rod for holding optical fiber preform

Publications (1)

Publication Number Publication Date
JPS6428242A true JPS6428242A (en) 1989-01-30

Family

ID=16180506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18599487A Pending JPS6428242A (en) 1987-07-23 1987-07-23 Dummy rod for holding optical fiber preform

Country Status (1)

Country Link
JP (1) JPS6428242A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337128A (en) * 1989-07-04 1991-02-18 Fujikura Ltd Production device of optical fiber and its production
FR2802916A1 (en) * 1999-12-27 2001-06-29 Cit Alcatel PREFORM INPUT ARRANGEMENT FOR FIBER OPTIC DRAWING OVEN, OVEN HAVING SUCH ARRANGEMENT AND PREFORM EQUIPPED TO COOPERATE WITH THIS ARRANGEMENT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337128A (en) * 1989-07-04 1991-02-18 Fujikura Ltd Production device of optical fiber and its production
FR2802916A1 (en) * 1999-12-27 2001-06-29 Cit Alcatel PREFORM INPUT ARRANGEMENT FOR FIBER OPTIC DRAWING OVEN, OVEN HAVING SUCH ARRANGEMENT AND PREFORM EQUIPPED TO COOPERATE WITH THIS ARRANGEMENT

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