JPS577833A - Removing apparatus for bubble in manufacture of glass fiber - Google Patents

Removing apparatus for bubble in manufacture of glass fiber

Info

Publication number
JPS577833A
JPS577833A JP8139580A JP8139580A JPS577833A JP S577833 A JPS577833 A JP S577833A JP 8139580 A JP8139580 A JP 8139580A JP 8139580 A JP8139580 A JP 8139580A JP S577833 A JPS577833 A JP S577833A
Authority
JP
Japan
Prior art keywords
glass
vessel
bubbles
molten glass
glass fiber
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
JP8139580A
Other languages
Japanese (ja)
Other versions
JPS6357371B2 (en
Inventor
Haruhiko Machida
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.)
Machida Endoscope Co Ltd
Original Assignee
Machida Endoscope Co 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 Machida Endoscope Co Ltd filed Critical Machida Endoscope Co Ltd
Priority to JP8139580A priority Critical patent/JPS577833A/en
Publication of JPS577833A publication Critical patent/JPS577833A/en
Publication of JPS6357371B2 publication Critical patent/JPS6357371B2/ja
Granted 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
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/18—Stirring devices; Homogenisation
    • C03B5/182—Stirring devices; Homogenisation by moving the molten glass along fixed elements, e.g. deflectors, weirs, baffle plates
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/225—Refining

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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To thoroughly remove bubbles from molten glass and to obtain a glass fiber of high quality by introducing the molten glass into a vessel provided with an uneven bottom and partition plates opposing to the recesses. CONSTITUTION:Core glass or sheath glass for a glass fiber for transmitting light or image is melted and poured into a vessel 5 at a constant rate. Bubbles 10 existing in the molten glass 9 flow from the outside of the vessel 5 to the center. At this time, since the bottom 6 of the vessel is uneven, bubbles 10 acceleratedly rise from each recess 11 to each protrusion 12, and they are released into the air at the shallowest place of the molten glass 9 between the surface of the glass 9 and the protrusion 12. Even if the bubbles pass through the place, they are interrupted by a partition plate 7 without settling again and released into the air after rising. The unevenness and the partition plate 7 are set in many steps, and the glass 9 is freed of microbubbles having about several mum size as well as bubbles. The glass 9 is then spun by dropping from a nozzle 8 attached to the bottom of the vessel 5 at a central part. When both core glass and sheath glass are melted, the positions of nozzles are adjusted to spin them.
JP8139580A 1980-06-18 1980-06-18 Removing apparatus for bubble in manufacture of glass fiber Granted JPS577833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8139580A JPS577833A (en) 1980-06-18 1980-06-18 Removing apparatus for bubble in manufacture of glass fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8139580A JPS577833A (en) 1980-06-18 1980-06-18 Removing apparatus for bubble in manufacture of glass fiber

Publications (2)

Publication Number Publication Date
JPS577833A true JPS577833A (en) 1982-01-16
JPS6357371B2 JPS6357371B2 (en) 1988-11-11

Family

ID=13745107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8139580A Granted JPS577833A (en) 1980-06-18 1980-06-18 Removing apparatus for bubble in manufacture of glass fiber

Country Status (1)

Country Link
JP (1) JPS577833A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003104730A (en) * 2001-09-28 2003-04-09 Asahi Glass Co Ltd Degassing device under reduced pressure
WO2007042715A1 (en) * 2005-10-13 2007-04-19 Saint-Gobain Technical Fabrics Europe Method and device for homogenizing a viscous substance
JP2020518545A (en) * 2017-05-03 2020-06-25 プランゼー エスエー Glass melting parts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003104730A (en) * 2001-09-28 2003-04-09 Asahi Glass Co Ltd Degassing device under reduced pressure
JP4513248B2 (en) * 2001-09-28 2010-07-28 旭硝子株式会社 Vacuum degassing apparatus and vacuum degassing method
WO2007042715A1 (en) * 2005-10-13 2007-04-19 Saint-Gobain Technical Fabrics Europe Method and device for homogenizing a viscous substance
FR2892114A1 (en) * 2005-10-13 2007-04-20 Saint Gobain Vetrotex METHOD AND DEVICE FOR HOMOGENIZING VISCOUS MATERIAL
JP2020518545A (en) * 2017-05-03 2020-06-25 プランゼー エスエー Glass melting parts

Also Published As

Publication number Publication date
JPS6357371B2 (en) 1988-11-11

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