JPH02136036U - - Google Patents
Info
- Publication number
- JPH02136036U JPH02136036U JP1989012426U JP1242689U JPH02136036U JP H02136036 U JPH02136036 U JP H02136036U JP 1989012426 U JP1989012426 U JP 1989012426U JP 1242689 U JP1242689 U JP 1242689U JP H02136036 U JPH02136036 U JP H02136036U
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- core tube
- base material
- hole
- furnace core
- 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
- 239000000463 material Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000005373 porous glass Substances 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Melting And Manufacturing (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242689U JPH0646982Y2 (ja) | 1989-02-02 | 1989-02-02 | 高純度石英母材製造用加熱炉 |
| AU46870/89A AU626362B2 (en) | 1988-12-29 | 1989-12-19 | Furnace for producing high purity quartz glass preform |
| GB8928691A GB2226628B (en) | 1988-12-29 | 1989-12-20 | Furnace |
| US07/459,299 US5032079A (en) | 1988-12-29 | 1989-12-29 | Furnace for producing high purity quartz glass preform |
| KR898920189A KR920001386B1 (en) | 1988-12-29 | 1989-12-29 | Heating furnace for producing high-purity quartz preform |
| EP90106551A EP0450124B1 (en) | 1988-12-29 | 1990-04-05 | Furnace for producing high purity quartz glass preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242689U JPH0646982Y2 (ja) | 1989-02-02 | 1989-02-02 | 高純度石英母材製造用加熱炉 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02136036U true JPH02136036U (enrdf_load_html_response) | 1990-11-13 |
| JPH0646982Y2 JPH0646982Y2 (ja) | 1994-11-30 |
Family
ID=31515903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1242689U Expired - Lifetime JPH0646982Y2 (ja) | 1988-12-29 | 1989-02-02 | 高純度石英母材製造用加熱炉 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646982Y2 (enrdf_load_html_response) |
-
1989
- 1989-02-02 JP JP1242689U patent/JPH0646982Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0646982Y2 (ja) | 1994-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |