JPS54134132A - Manufacturing device of light transmission wire - Google Patents

Manufacturing device of light transmission wire

Info

Publication number
JPS54134132A
JPS54134132A JP4147578A JP4147578A JPS54134132A JP S54134132 A JPS54134132 A JP S54134132A JP 4147578 A JP4147578 A JP 4147578A JP 4147578 A JP4147578 A JP 4147578A JP S54134132 A JPS54134132 A JP S54134132A
Authority
JP
Japan
Prior art keywords
crucibles
glass
spinning
kept
maintain
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
JP4147578A
Other languages
Japanese (ja)
Other versions
JPS602253B2 (en
Inventor
Osamu Nakamura
Takashi Tatsuta
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4147578A priority Critical patent/JPS602253B2/en
Publication of JPS54134132A publication Critical patent/JPS54134132A/en
Publication of JPS602253B2 publication Critical patent/JPS602253B2/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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique

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:The title device designed to manufacture high-quality optical fibers of uniform dimension, wherein the glass is remolten in a U-shaped conduit between the melting and the spinning crucibles for a given time to prevent the devitrification of glass and to maintain the pressure applied to the nozzle constant. CONSTITUTION:The preform rods 1 and 2 are molten in the melting crucibles 3 and 4 by the heating furnace 7, kept by the U-shaped conduits 5 and 6 at a high temperature for a given time, and spun through the crucible 8 into fibers. The furnace 7 is kept at a higher temperature then that of the heating furnace 9 to prevent devitrification during the spinning. The contamination of impurities can be prevented by the almost airtight structure between the crucibles 3 and 4 and the double crucible 8. The heating time is controlled by the inside diameters of the conduits 5 and 6 and the crucibles 3 and 4, and the head H. The molten glass surface is controlled to maintain the pressure applied to the nozzle almost constant.
JP4147578A 1978-04-07 1978-04-07 Optical transmission line manufacturing equipment Expired JPS602253B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4147578A JPS602253B2 (en) 1978-04-07 1978-04-07 Optical transmission line manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4147578A JPS602253B2 (en) 1978-04-07 1978-04-07 Optical transmission line manufacturing equipment

Publications (2)

Publication Number Publication Date
JPS54134132A true JPS54134132A (en) 1979-10-18
JPS602253B2 JPS602253B2 (en) 1985-01-21

Family

ID=12609377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4147578A Expired JPS602253B2 (en) 1978-04-07 1978-04-07 Optical transmission line manufacturing equipment

Country Status (1)

Country Link
JP (1) JPS602253B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0975553A4 (en) * 1996-08-12 2000-02-02 Us Navy Process for making optical fibers from core and cladding glass rods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0975553A4 (en) * 1996-08-12 2000-02-02 Us Navy Process for making optical fibers from core and cladding glass rods
EP0975553A1 (en) * 1996-08-12 2000-02-02 THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY OF THE NAVY Process for making optical fibers from core and cladding glass rods

Also Published As

Publication number Publication date
JPS602253B2 (en) 1985-01-21

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