JPH0211129U - - Google Patents
Info
- Publication number
- JPH0211129U JPH0211129U JP8926988U JP8926988U JPH0211129U JP H0211129 U JPH0211129 U JP H0211129U JP 8926988 U JP8926988 U JP 8926988U JP 8926988 U JP8926988 U JP 8926988U JP H0211129 U JPH0211129 U JP H0211129U
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- gas introduction
- heating
- introduction section
- heating 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
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Landscapes
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
第１図は本考案の一実施例を示す加熱炉の断面
図、第２図は本考案の他の実施例を示す炉心管の
断面図、第３図および第４図は本考案の加熱炉の
圧力変動を説明するためのグラフ、第５図ないし
第７図は従来例を説明するための図であつて、第
５図はすすプリフオームの製造方法を示す側面図
、第６図は透明ガラス母材製造用の加熱炉の断面
図、第７図は光フアイバ線引き炉の断面図である
。
１１……加熱炉、１４……発熱体、１５……ガ
ス導入部、１９，２０……圧力変動吸収部。
Fig. 1 is a sectional view of a heating furnace showing one embodiment of the invention, Fig. 2 is a sectional view of a furnace core tube showing another embodiment of the invention, and Figs. 3 and 4 are heating furnaces of the invention. Figures 5 to 7 are graphs for explaining the pressure fluctuations of the soot preform, and Figures 5 to 7 are diagrams for explaining the conventional example. FIG. 7 is a cross-sectional view of a heating furnace for producing a base material, and FIG. 7 is a cross-sectional view of an optical fiber drawing furnace. 11... Heating furnace, 14... Heating element, 15... Gas introduction section, 19, 20... Pressure fluctuation absorption section.
Claims (1)
るガス導入部とを有する光フアイバ製造用の加熱
炉であつて、上記ガス導入部に、気圧の変化に応
じて膨張および収縮を起こす圧力変動吸収部を設
けたことを特徴とする加熱炉。 A heating furnace for manufacturing optical fibers, which has a heating element that heats the inside of the furnace and a gas introduction section that introduces gas into the furnace, wherein the gas introduction section expands and contracts in response to changes in atmospheric pressure. A heating furnace characterized by being provided with a pressure fluctuation absorption section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8926988U JPH065381Y2 (en) | 1988-07-05 | 1988-07-05 | heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8926988U JPH065381Y2 (en) | 1988-07-05 | 1988-07-05 | heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0211129U true JPH0211129U (en) | 1990-01-24 |
| JPH065381Y2 JPH065381Y2 (en) | 1994-02-09 |
Family
ID=31313819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8926988U Expired - Lifetime JPH065381Y2 (en) | 1988-07-05 | 1988-07-05 | heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065381Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006056773A (en) * | 2004-07-22 | 2006-03-02 | Furukawa Electric Co Ltd:The | Method of dehydrating and sintering optical fiber porous preform and furnace of dehydrating and sintering the same |
-
1988
- 1988-07-05 JP JP8926988U patent/JPH065381Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006056773A (en) * | 2004-07-22 | 2006-03-02 | Furukawa Electric Co Ltd:The | Method of dehydrating and sintering optical fiber porous preform and furnace of dehydrating and sintering the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065381Y2 (en) | 1994-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0211129U (en) | ||
| JPS6369137U (en) | ||
| JPS6472934A (en) | Production of base material for distribution-shift optical fiber | |
| JPH02142446U (en) | ||
| JPH0478229U (en) | ||
| JPS59181838U (en) | Flame burner for optical fiber manufacturing | |
| JPS57205333A (en) | Manufacture of single-polarization single-mode optical fiber | |
| JPS63115040U (en) | ||
| JPS6324237U (en) | ||
| JPS6381828U (en) | ||
| JPH0318138U (en) | ||
| JPS63110532U (en) | ||
| JPH0444336U (en) | ||
| JPH0252435U (en) | ||
| JPS6181606U (en) | ||
| JPH01172004U (en) | ||
| JPH0336934U (en) | ||
| JPS63127947U (en) | ||
| JPH0430685U (en) | ||
| JPS6438543U (en) | ||
| JPS6351264U (en) | ||
| JPH043406U (en) | ||
| JPS63162307U (en) | ||
| JPS63168406U (en) | ||
| JPH03125024U (en) |