JPS6324237U - - Google Patents
Info
- Publication number
- JPS6324237U JPS6324237U JP11678886U JP11678886U JPS6324237U JP S6324237 U JPS6324237 U JP S6324237U JP 11678886 U JP11678886 U JP 11678886U JP 11678886 U JP11678886 U JP 11678886U JP S6324237 U JPS6324237 U JP S6324237U
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- core tube
- protective film
- heating furnace
- coated
- 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
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims 1
- 239000000292 calcium oxide Substances 0.000 claims 1
- 239000003575 carbonaceous material Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 239000011225 non-oxide ceramic Substances 0.000 claims 1
- 229910052575 non-oxide ceramic Inorganic materials 0.000 claims 1
- 239000011224 oxide ceramic Substances 0.000 claims 1
- 229910052574 oxide ceramic Inorganic materials 0.000 claims 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 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
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
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)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
Description
第１図は本考案の一実施例に係る炉心管の横断
面図、第２図は本考案による炉心管を用いた線引
炉の縦断面図、第３図は従来の線引炉の縦断面図
である。
図中、１は母材、２は光フアイバ、３は炉心管
、４は発熱体、５は保温材、６は炉体、３１は炉
心管本体、３２は第１の保護膜、３３は第２の保
護膜である。
Figure 1 is a cross-sectional view of a furnace core tube according to an embodiment of the present invention, Figure 2 is a longitudinal cross-sectional view of a drawing furnace using the furnace core tube of the present invention, and Figure 3 is a longitudinal cross-section of a conventional drawing furnace. It is a front view. In the figure, 1 is a base material, 2 is an optical fiber, 3 is a furnace tube, 4 is a heating element, 5 is a heat insulating material, 6 is a furnace body, 31 is a furnace tube main body, 32 is a first protective film, 33 is a first This is the second protective film.
Claims (1)
する光フアイバ製造用加熱炉の炉心管において、
炭素材により炉心管本体を成型すると共に該炉心
管本体の内周面に非酸化物のセラミツクからなる
第１の保護膜を被覆し、さらに第１の保護膜の内
周面に酸化物のセラミツクからなる第２の保護膜
を被覆したことを特徴とする光フアイバ製造用加
熱炉の炉心管。 (2) 上記酸化物のセラミツクが純粋酸化ジルコ
ニウムもしくは純粋酸化ジルコニウムに酸化イツ
トリウムあるいは酸化カルシウムを添加したもの
であ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製造用加熱炉の炉心管。[Scope of Claim for Utility Model Registration] (1) In a core tube of a heating furnace for manufacturing optical fiber, in which quartz-based glass is introduced into the tube and heated,
A core tube body is molded from a carbon material, and a first protective film made of non-oxide ceramic is coated on the inner peripheral surface of the core tube body, and an oxide ceramic is further coated on the inner peripheral surface of the first protective film. A furnace core tube for a heating furnace for manufacturing optical fiber, characterized in that it is coated with a second protective film consisting of: (2) A heating furnace for producing optical fibers according to claim 1, wherein the ceramic oxide is pure zirconium oxide or pure zirconium oxide to which yttrium oxide or calcium oxide is added. hearth tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11678886U JPH0332503Y2 (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11678886U JPH0332503Y2 (en) | 1986-07-31 | 1986-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6324237U true JPS6324237U (en) | 1988-02-17 |
| JPH0332503Y2 JPH0332503Y2 (en) | 1991-07-10 |
Family
ID=31001706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11678886U Expired JPH0332503Y2 (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332503Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3388306B2 (en) * | 1996-02-01 | 2003-03-17 | 株式会社ニッカトー | Electric furnace |
-
1986
- 1986-07-31 JP JP11678886U patent/JPH0332503Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0332503Y2 (en) | 1991-07-10 |
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