JPS6255530U - - Google Patents
Info
- Publication number
- JPS6255530U JPS6255530U JP14568085U JP14568085U JPS6255530U JP S6255530 U JPS6255530 U JP S6255530U JP 14568085 U JP14568085 U JP 14568085U JP 14568085 U JP14568085 U JP 14568085U JP S6255530 U JPS6255530 U JP S6255530U
- Authority
- JP
- Japan
- Prior art keywords
- core tube
- optical fibers
- producing optical
- heating furnace
- utility
- 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 7
- 239000013307 optical fiber Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 3
- 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
- 239000011225 non-oxide ceramic Substances 0.000 claims 1
- 229910052575 non-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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000011810 insulating 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, and 32 is a protective film.
Claims (1)
熱炉の炉心管において、酸化ジルコニウム系材料
により炉心管本体を成型すると共に上記発熱体に
臨む炉心管本体の外周面に還元雰囲気に対して抵
抗性の大きい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) 上記保護膜が非酸化物のセラミツクからな
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製造用加熱炉の炉心管。 (3) 上記酸化ジルコニウム系材料が純粋酸化ジ
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項または第２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 producing optical fibers using carbon material as a heating element, the core tube body is molded from a zirconium oxide material and the core tube body facing the heating element is A core tube for a heating furnace for producing optical fibers, characterized in that its outer peripheral surface is coated with a protective film highly resistant to a reducing atmosphere. (2) Utility model registration claim 1, characterized in that the above-mentioned protective film is made of non-oxide ceramic.
A furnace core tube of a heating furnace for producing optical fibers as described in 2. (3) A heating furnace for producing optical fibers according to claim 1 or 2 of the utility model registration claim, wherein the zirconium oxide material is pure zirconium oxide with yttrium oxide or calcium oxide added. hearth tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14568085U JPH0343215Y2 (en) | 1985-09-26 | 1985-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14568085U JPH0343215Y2 (en) | 1985-09-26 | 1985-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6255530U true JPS6255530U (en) | 1987-04-06 |
| JPH0343215Y2 JPH0343215Y2 (en) | 1991-09-10 |
Family
ID=31057443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14568085U Expired JPH0343215Y2 (en) | 1985-09-26 | 1985-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343215Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288684A (en) * | 1992-05-18 | 1994-10-18 | Shinagawa Refract Co Ltd | Ultrahigh temperature testing or treating method |
-
1985
- 1985-09-26 JP JP14568085U patent/JPH0343215Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288684A (en) * | 1992-05-18 | 1994-10-18 | Shinagawa Refract Co Ltd | Ultrahigh temperature testing or treating method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0343215Y2 (en) | 1991-09-10 |
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