JPS5436952A - Production of stock rod for porous glass - Google Patents

Production of stock rod for porous glass

Info

Publication number
JPS5436952A
JPS5436952A JP10409877A JP10409877A JPS5436952A JP S5436952 A JPS5436952 A JP S5436952A JP 10409877 A JP10409877 A JP 10409877A JP 10409877 A JP10409877 A JP 10409877A JP S5436952 A JPS5436952 A JP S5436952A
Authority
JP
Japan
Prior art keywords
production
porous glass
stock rod
rod
pulled
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
JP10409877A
Other languages
Japanese (ja)
Inventor
Hideo Kakuzen
Shiro Kurosaki
Yuichi Usui
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 JP10409877A priority Critical patent/JPS5436952A/en
Publication of JPS5436952A publication Critical patent/JPS5436952A/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
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
    • C03B37/01228—Removal of preform material
    • C03B37/01237—Removal of preform material to modify the diameter by heat-polishing, e.g. fire-polishing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
    • 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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments

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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To eliminate the unevenness of preform pulled for the purpose of phase separating heat treatment by performing zone melting from one end up to the other end while letting the rod having been once pulled up revolve.
JP10409877A 1977-08-29 1977-08-29 Production of stock rod for porous glass Pending JPS5436952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10409877A JPS5436952A (en) 1977-08-29 1977-08-29 Production of stock rod for porous glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10409877A JPS5436952A (en) 1977-08-29 1977-08-29 Production of stock rod for porous glass

Publications (1)

Publication Number Publication Date
JPS5436952A true JPS5436952A (en) 1979-03-19

Family

ID=14371634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10409877A Pending JPS5436952A (en) 1977-08-29 1977-08-29 Production of stock rod for porous glass

Country Status (1)

Country Link
JP (1) JPS5436952A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007169111A (en) * 2005-12-22 2007-07-05 Nok Corp Method for producing inorganic composite hollow tube
JP2007169110A (en) * 2005-12-22 2007-07-05 Nok Corp Method for producing inorganic composite hollow tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007169111A (en) * 2005-12-22 2007-07-05 Nok Corp Method for producing inorganic composite hollow tube
JP2007169110A (en) * 2005-12-22 2007-07-05 Nok Corp Method for producing inorganic composite hollow tube
JP4738163B2 (en) * 2005-12-22 2011-08-03 Ｎｏｋ株式会社 Manufacturing method of inorganic composite hollow tube
JP4742852B2 (en) * 2005-12-22 2011-08-10 Ｎｏｋ株式会社 Manufacturing method of inorganic composite hollow tube

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