JPS6215537U - - Google Patents
Info
- Publication number
- JPS6215537U JPS6215537U JP10354785U JP10354785U JPS6215537U JP S6215537 U JPS6215537 U JP S6215537U JP 10354785 U JP10354785 U JP 10354785U JP 10354785 U JP10354785 U JP 10354785U JP S6215537 U JPS6215537 U JP S6215537U
- Authority
- JP
- Japan
- Prior art keywords
- core tube
- base material
- furnace core
- optical fiber
- furnace
- 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
- 239000000463 material Substances 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims 1
- 239000010453 quartz Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
Description
第１図は本考案による光フアイバ母材製造用炉
芯管の断面と昇降装置の正面を示す構成図、第２
図は第１図に示すもののフランジ部分の詳細図、
第３図ａ，ｂ，ｃは本考案による光フアイバ母材
製造用炉芯管を用いてガラス微粒子堆積体を熱処
理する工程の説明図、第４図は従来の炉芯管の断
面と昇降装置を示す構成図、第５図ａ，ｂ，ｃは
従来の熱処理工程の説明図である。
図面中、１は昇降装置、２は回転チヤツク、３
は中空炉体、４は炉芯管、５はガス入口ポート、
６はガス出口ポート、８はシール用ガスポート、
１１はシード棒、１２はガラス微粒子堆積体、１
３は下部筒体部、１４は上部筒体部、１５はフラ
ンジ、１６は溝、１７はシール用ガスポートであ
る。
Figure 1 is a configuration diagram showing the cross section of the furnace core tube for manufacturing optical fiber preforms and the front view of the lifting device according to the present invention;
The figure is a detailed view of the flange part of the one shown in Figure 1,
Figures 3a, b, and c are explanatory diagrams of the process of heat treating a glass particle deposit using the furnace core tube for producing optical fiber base material according to the present invention, and Figure 4 is a cross-section of the conventional furnace core tube and the lifting device. FIGS. 5a, 5b, and 5c are explanatory diagrams of the conventional heat treatment process. In the drawing, 1 is a lifting device, 2 is a rotary chuck, and 3 is a lifting device.
is a hollow furnace body, 4 is a furnace core tube, 5 is a gas inlet port,
6 is a gas outlet port, 8 is a sealing gas port,
11 is a seed rod, 12 is a glass particle deposit body, 1
3 is a lower cylinder part, 14 is an upper cylinder part, 15 is a flange, 16 is a groove, and 17 is a gas port for sealing.
Claims (1)
いは透明化する中空炉体と、上記母材を上記炉体
内を上下に通過させて熱処理する行程を遮蔽する
炉芯管と、該炉芯管内を回転チヤツクに係着して
上記母材を上下に移動して熱処理を施す昇降装置
とからなる光フアイバ母材製造用炉芯管において
、上記炉芯管はフランジを備えていて、分離・接
合自在な上下二つの筒体部から形成され、該上部
筒体部は上記母材を接続した上記回転チヤツクに
把持されたシード棒に、上記上部筒体部の上板部
の穴を貫通して摺動自在に係着されることを特徴
とする光フアイバ母材製造用炉芯管。 (2) 上記炉芯管の上下筒体部のフランジ構造が
フランジ接合面全周にわたる溝と該溝に連通され
るシール用ガスポートとからなることを特徴とす
る実用新案登録請求の範囲第１項記載の光フアイ
バ母材製造用炉芯管。[Scope of Claim for Utility Model Registration] (1) A hollow furnace body for dehydrating or making transparent a porous base material of a quartz-based optical fiber, and a process for shielding the base material from passing up and down through the furnace body for heat treatment. A furnace core tube for manufacturing optical fiber preforms, which comprises a furnace core tube and an elevating device that is attached to a rotary chuck in the furnace core tube and moves the base material up and down to perform heat treatment, the furnace core tube is It is formed of two upper and lower cylindrical parts that are equipped with flanges and can be separated and joined together, and the upper cylindrical part is attached to a seed rod held by the rotary chuck connected to the base material. A furnace core tube for manufacturing an optical fiber base material, characterized in that the core tube is slidably attached through a hole in an upper plate part. (2) Utility model registration claim 1, characterized in that the flange structure of the upper and lower cylindrical body parts of the furnace core tube consists of a groove spanning the entire circumference of the flange joint surface and a sealing gas port communicating with the groove. A furnace core tube for producing an optical fiber base material as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985103547U JPH0230414Y2 (en) | 1985-07-09 | 1985-07-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985103547U JPH0230414Y2 (en) | 1985-07-09 | 1985-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6215537U true JPS6215537U (en) | 1987-01-30 |
| JPH0230414Y2 JPH0230414Y2 (en) | 1990-08-16 |
Family
ID=30976202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985103547U Expired JPH0230414Y2 (en) | 1985-07-09 | 1985-07-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230414Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999050197A1 (en) * | 1998-03-31 | 1999-10-07 | Sumitomo Electric Industries, Ltd. | Reaction pipe |
| JP2002145628A (en) * | 2000-11-07 | 2002-05-22 | Hitachi Cable Ltd | Method for sintering porous base material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186434U (en) * | 1984-11-08 | 1986-06-06 |
-
1985
- 1985-07-09 JP JP1985103547U patent/JPH0230414Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186434U (en) * | 1984-11-08 | 1986-06-06 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999050197A1 (en) * | 1998-03-31 | 1999-10-07 | Sumitomo Electric Industries, Ltd. | Reaction pipe |
| JP2002145628A (en) * | 2000-11-07 | 2002-05-22 | Hitachi Cable Ltd | Method for sintering porous base material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0230414Y2 (en) | 1990-08-16 |
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