JPH03125024U - - Google Patents

Info

Publication number
JPH03125024U
JPH03125024U JP3469790U JP3469790U JPH03125024U JP H03125024 U JPH03125024 U JP H03125024U JP 3469790 U JP3469790 U JP 3469790U JP 3469790 U JP3469790 U JP 3469790U JP H03125024 U JPH03125024 U JP H03125024U
Authority
JP
Japan
Prior art keywords
optical fiber
base material
heating element
space
nozzle
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
JP3469790U
Other languages
English (en)
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 filed Critical
Priority to JP3469790U priority Critical patent/JPH03125024U/ja
Publication of JPH03125024U publication Critical patent/JPH03125024U/ja
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025Manufacture 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
    • C03B37/029Furnaces therefor

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)

Description

【図面の簡単な説明】
第1図は、本考案光フアイバ線引き炉の一実施
例を示す概略構成図、第2図は一実施例の光フア
イバ線引き炉の昇温過程を示す図、第3図は一実
施例の線引き炉で製造された光フアイバのγ線照
射特性を従来例と比して示した図、第4図は一実
施例の線引き炉で製造された光フアイバの耐水素
特性を従来例と比して示した図である。 図中、1……光フアイバ母材、2……線引き炉
本体、2a……母材側空間、2b……発熱体側空
間、4……カーボン発熱体、5……ジルコニアマ
ツフル、6……第1のノズル、7……第2のノズ
ル、8……光フアイバである。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光フアイバ母材を加熱する発熱体にカーボン抵
    抗体を用いた光フアイバ線引き炉において、上記
    発熱体と光フアイバ母材との間にジルコニアマツ
    フルを設けて発熱体側空間と光フアイバ母材側空
    間とに区画し、発熱体側空間に不活性ガスを導入
    する第1のノズルを、母材側空間に酸素を含む雰
    囲気ガスを導入する第2のノズルを設けたことを
    特徴とする光フアイバ線引き炉。
JP3469790U 1990-03-30 1990-03-30 Pending JPH03125024U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3469790U JPH03125024U (ja) 1990-03-30 1990-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3469790U JPH03125024U (ja) 1990-03-30 1990-03-30

Publications (1)

Publication Number Publication Date
JPH03125024U true JPH03125024U (ja) 1991-12-18

Family

ID=31539400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3469790U Pending JPH03125024U (ja) 1990-03-30 1990-03-30

Country Status (1)

Country Link
JP (1) JPH03125024U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008164744A (ja) * 2006-12-27 2008-07-17 Vision Megane:Kk 眼鏡フレーム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008164744A (ja) * 2006-12-27 2008-07-17 Vision Megane:Kk 眼鏡フレーム
JP4486954B2 (ja) * 2006-12-27 2010-06-23 株式会社ビジョンメガネ 眼鏡フレーム

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