JPS60147636U - Heating furnace for manufacturing optical fiber base material - Google Patents
Heating furnace for manufacturing optical fiber base materialInfo
- Publication number
- JPS60147636U JPS60147636U JP3512084U JP3512084U JPS60147636U JP S60147636 U JPS60147636 U JP S60147636U JP 3512084 U JP3512084 U JP 3512084U JP 3512084 U JP3512084 U JP 3512084U JP S60147636 U JPS60147636 U JP S60147636U
- Authority
- JP
- Japan
- Prior art keywords
- base material
- target holder
- heating furnace
- glass plate
- mentioned
- 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
Links
Landscapes
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の光フアイバ母材製造用加熱炉上端部の要
部断面図、第２図は本考案の光フアイバ母材製造用加熱
炉の実施例の上端部要部断面図である。
１；ターゲットホルダ、２；硝子板、３；石英炉芯管、
５；排気口、６；カーボンシート、７；穴、。FIG. 1 is a sectional view of the main part of the upper end of a conventional heating furnace for producing optical fiber preforms, and FIG. 2 is a sectional view of the main parts of the upper end of an embodiment of the heating furnace for producing optical fiber preforms of the present invention. 1; Target holder, 2; Glass plate, 3; Quartz furnace core tube,
5; Exhaust port, 6; Carbon sheet, 7; Hole.
Claims (1)
れるターゲットホルダが加熱炉石英炉芯管上端に取り付
けられたガラス板を上下方向に貫通して取り付けられ、
塩素ガスガスなどの７１〇ゲンガス及びヘリウムガスが
周辺圧力よりやや高圧で下方から流動され上記ガラス板
下部の上記石英炉芯管に開口された排気口から排出され
上記ター−ゲットホルダが回転されながら上下方向に移
動されて上記多孔質母材が透明化されるものにおいて、
自己潤滑性を有し複数枚積層され上記ターゲットホルタ
′の外径と同径の穴が形成されたカーボンシートの該穴
に挿通される上記ターゲットホルダと、上記ガラス板と
共に上記石英炉芯管に固定された上記カーボンシートと
を設けたことを特徴とする光フアイバ母材製造用加熱炉
。A target holder, to which a porous base material manufactured by the vapor phase axial mounting method is fixed at the lower end, is attached by vertically penetrating the glass plate attached to the upper end of the heating furnace quartz furnace core tube.
710 Gen gas such as chlorine gas and helium gas are flowed from below at a pressure slightly higher than the surrounding pressure and are discharged from an exhaust port opened in the quartz furnace core tube at the bottom of the glass plate, and the target holder is rotated up and down. In one in which the porous base material is made transparent by being moved in the direction,
The above-mentioned target holder is inserted into the hole of a self-lubricating carbon sheet that is laminated with a plurality of sheets and has a hole with the same diameter as the outer diameter of the above-mentioned target holder, and the above-mentioned quartz furnace core tube together with the above-mentioned glass plate. A heating furnace for producing an optical fiber base material, characterized in that the carbon sheet is fixed thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3512084U JPS60147636U (en) | 1984-03-12 | 1984-03-12 | Heating furnace for manufacturing optical fiber base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3512084U JPS60147636U (en) | 1984-03-12 | 1984-03-12 | Heating furnace for manufacturing optical fiber base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60147636U true JPS60147636U (en) | 1985-10-01 |
| JPH0133627Y2 JPH0133627Y2 (en) | 1989-10-12 |
Family
ID=30539109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3512084U Granted JPS60147636U (en) | 1984-03-12 | 1984-03-12 | Heating furnace for manufacturing optical fiber base material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60147636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990011974A1 (en) * | 1989-03-30 | 1990-10-18 | Sumitomo Electric Industries, Ltd. | Sintering furnace for producing quartz base material |
-
1984
- 1984-03-12 JP JP3512084U patent/JPS60147636U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990011974A1 (en) * | 1989-03-30 | 1990-10-18 | Sumitomo Electric Industries, Ltd. | Sintering furnace for producing quartz base material |
| US5133796A (en) * | 1989-03-30 | 1992-07-28 | Sumitomo Electric Industries, Ltd. | Air-tight sintering furnace for the production of a quartz preform |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0133627Y2 (en) | 1989-10-12 |
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