JPS6327445U - - Google Patents

Info

Publication number
JPS6327445U
JPS6327445U JP12169586U JP12169586U JPS6327445U JP S6327445 U JPS6327445 U JP S6327445U JP 12169586 U JP12169586 U JP 12169586U JP 12169586 U JP12169586 U JP 12169586U JP S6327445 U JPS6327445 U JP S6327445U
Authority
JP
Japan
Prior art keywords
chimney
drawn
glass rod
rod
sealing disc
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
JP12169586U
Other languages
English (en)
Other versions
JPH0351312Y2 (ja
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 JP12169586U priority Critical patent/JPH0351312Y2/ja
Publication of JPS6327445U publication Critical patent/JPS6327445U/ja
Application granted granted Critical
Publication of JPH0351312Y2 publication Critical patent/JPH0351312Y2/ja
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
    • C03B37/025—Manufacture 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
    • C03B37/029—Furnaces therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/60—Optical fibre draw furnaces
    • C03B2205/80—Means for sealing the preform entry or upper end of the furnace
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/60—Optical fibre draw furnaces
    • C03B2205/82—Means for sealing the fibre exit or lower end of the furnace

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)
  • Furnace Charging Or Discharging (AREA)

Description

【図面の簡単な説明】
第１図ａ乃至ｃは本考案によるガラス棒延伸用
加熱装置の実施例断面構造概要図、第２図ａ乃至
ｃは従来のガラス棒延伸用加熱装置の断面構造概
要図である。 １，２０…炉本体、１ａ…上端壁、１ｂ…下端
壁、１ｃ…側壁、２，２１…挿入口、３，２２…
引出し口、４，５…不活性ガス送給口、６，２３
…発熱体、７，２７…めくら蓋、８，３２…送り
棒、９…第１のシール円板、１０…煙突、１０ａ
…煙突屋根、１１，２９…下蓋、１２，２８…ガ
ス排出口、１３，３３…引出し棒、１４，３１…
ガラス延伸体、１５…開閉弁、１６…第２のシー
ル円板、１７…炉心管、１８…不活性ガス導入口
、１９…不活性ガス排出口、２５，２６…不活性
ガス供給口、３０…光フアイバ母材。

Claims (1)

  1. 【実用新案登録請求の範囲】 上端壁１ａの中心部に、被延伸ガラス棒の上端
    に前記被延伸ガラス棒の外径より小なる外径の送
    り棒８を取付けた前記被延伸ガラス棒を挿入する
    挿入口２と、 下端壁１ｂの中心部に、前記被延伸ガラス棒を
    引出す引出し口３を有する 炉本体１と、 前記炉本体１の上端壁１ａ、下端壁１ｂおよび
    側壁１ｃで囲まれた空間内に配置した、前記被延
    伸ガラス棒を加熱軟化する発熱体６と、 前記炉本体１の挿入口２の上に気密に載置した
    、前記送り棒８に摺動可能に係止し、かつ前記送
    り棒８の外周壁との間にシール間隙を保持する第
    １のシール円板９と、 前記炉本体１の挿入口２の上に気密に設置し、
    円周方向に少くとも二つ以上に分割され、前記第
    １のシール円板９の上部は前記第１のシール円板
    ９の外径より大なる内径で、かつ全長にわたり前
    記被延伸ガラス棒の径より大なる内径を有する煙
    突１０と、 前記煙突１０と一体に形成した、前記送り棒８
    の外径より大なる内径の気密口を有する煙突屋根
    １０ａと、 前記煙突屋根１０ａの上に気密に載置した、前
    記送り棒８に摺動可能に係止し、かつ前記送り棒
    ８の外周壁との間にシール間隙を保持する第２の
    シール円板１６とを備えてなる ことを特徴とするガラス棒延伸用加熱装置。
JP12169586U 1986-08-08 1986-08-08 Expired JPH0351312Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12169586U JPH0351312Y2 (ja) 1986-08-08 1986-08-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12169586U JPH0351312Y2 (ja) 1986-08-08 1986-08-08

Publications (2)

Publication Number Publication Date
JPS6327445U true JPS6327445U (ja) 1988-02-23
JPH0351312Y2 JPH0351312Y2 (ja) 1991-11-01

Family

ID=31011204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12169586U Expired JPH0351312Y2 (ja) 1986-08-08 1986-08-08

Country Status (1)

Country Link
JP (1) JPH0351312Y2 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03126634A (ja) * 1989-10-12 1991-05-29 Furukawa Electric Co Ltd:The 光ファイバの製造方法
JP2002234750A (ja) * 2001-02-01 2002-08-23 Shinetsu Quartz Prod Co Ltd 光ファイバ用石英ガラス母材の製造方法
WO2004113243A1 (ja) * 2003-06-18 2004-12-29 Shin-Etsu Chemical Co., Ltd. 光ファイバ線引き装置およびガスシール機構
JP2009227516A (ja) * 2008-03-24 2009-10-08 Sumitomo Electric Ind Ltd 光ファイバの製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03126634A (ja) * 1989-10-12 1991-05-29 Furukawa Electric Co Ltd:The 光ファイバの製造方法
JP2002234750A (ja) * 2001-02-01 2002-08-23 Shinetsu Quartz Prod Co Ltd 光ファイバ用石英ガラス母材の製造方法
WO2004113243A1 (ja) * 2003-06-18 2004-12-29 Shin-Etsu Chemical Co., Ltd. 光ファイバ線引き装置およびガスシール機構
JP2009227516A (ja) * 2008-03-24 2009-10-08 Sumitomo Electric Ind Ltd 光ファイバの製造方法

Also Published As

Publication number Publication date
JPH0351312Y2 (ja) 1991-11-01

Similar Documents

Publication Publication Date Title
JPS6327445U (ja)
JPS61173132U (ja)
CN221626374U (zh) 一种沉积炉炉盖的密封结构
JPS6324236U (ja)
JPH0178258U (ja)
JPS5811432U (ja) 電熱式エアポツト
JPS6445134U (ja)
JPH0270200U (ja)
JPH0387025U (ja)
JPS6341747U (ja)
JPH02140956U (ja)
JPH01173156U (ja)
JPH0446694U (ja)
JPS62143891U (ja)
JPS6314532U (ja)
JPH0311033U (ja)
JPS62142609U (ja)
JPS63124736U (ja)
JPS5858421U (ja) 調理用釜における内釜の洗浄排水栓部の保安装置
JPS6422770U (ja)
JPH0459447U (ja)
JPH0161544U (ja)
JPS6375800U (ja)
JPS6449661U (ja)
JPS58105463U (ja) 端部加熱炉のシ−ル機構