JPS56129624A - Manufacture of rodlike glass - Google Patents

Manufacture of rodlike glass

Info

Publication number
JPS56129624A
JPS56129624A JP3022880A JP3022880A JPS56129624A JP S56129624 A JPS56129624 A JP S56129624A JP 3022880 A JP3022880 A JP 3022880A JP 3022880 A JP3022880 A JP 3022880A JP S56129624 A JPS56129624 A JP S56129624A
Authority
JP
Japan
Prior art keywords
glass
rod
crucible
pulling
agitated
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
JP3022880A
Other languages
Japanese (ja)
Inventor
Shiro Kurosaki
Minoru Watanabe
Shigeki Fuchinaga
Masayuki Hata
Saburo Mugikura
Yukio Kumazawa
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 JP3022880A priority Critical patent/JPS56129624A/en
Publication of JPS56129624A publication Critical patent/JPS56129624A/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
    • C03B37/022—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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B15/00—Drawing glass upwardly from the melt
    • C03B15/14—Drawing tubes, cylinders, or rods from the melt
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/02—Upward drawing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To obtain rodlike phase-separated glass free from striae by shifting refined agitated molten starting material for glass to a pulling furnace, bringing the lower end of a pulling rod into contact with the surface of the resulting molten glass adjusted to a specified temp., and pulling up the rod. CONSTITUTION:Starting material 17 for glass is put in crucible 15, and it is melted and agitated with agitating rod 16 while keeping crucible 15 at 1,400-1,550 deg.C in melting furnace 11. The temp. is then dropped to 1,150-1,350 deg.C, molten material 17 in crucible 15 is refined and agitated with agitating rod 16, and rod 16 is pulled up from crucible 15. Crucible 15 is immediately shifted to pulling furnace 18 kept at 900-1,100 deg.C, and after adjusting molten glass 21 in crucible 15 to 900-1,100 deg.C, the lower end of pulling rod 22 is brought into contact with the surface of glass 21. While pulling up rod 22, rodlike glass in cooled.
JP3022880A 1980-03-12 1980-03-12 Manufacture of rodlike glass Pending JPS56129624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3022880A JPS56129624A (en) 1980-03-12 1980-03-12 Manufacture of rodlike glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3022880A JPS56129624A (en) 1980-03-12 1980-03-12 Manufacture of rodlike glass

Publications (1)

Publication Number Publication Date
JPS56129624A true JPS56129624A (en) 1981-10-09

Family

ID=12297848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3022880A Pending JPS56129624A (en) 1980-03-12 1980-03-12 Manufacture of rodlike glass

Country Status (1)

Country Link
JP (1) JPS56129624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7219773B2 (en) 2003-01-20 2007-05-22 Nissin Kogyo Co., Ltd. Disc brake for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7219773B2 (en) 2003-01-20 2007-05-22 Nissin Kogyo Co., Ltd. Disc brake for vehicle

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