JPS6456326A - Production of quartz crucible - Google Patents
Production of quartz crucibleInfo
- Publication number
- JPS6456326A JPS6456326A JP21189587A JP21189587A JPS6456326A JP S6456326 A JPS6456326 A JP S6456326A JP 21189587 A JP21189587 A JP 21189587A JP 21189587 A JP21189587 A JP 21189587A JP S6456326 A JPS6456326 A JP S6456326A
- Authority
- JP
- Japan
- Prior art keywords
- taper
- core material
- production
- pulling
- quartz crucible
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/12—Other methods of shaping glass by liquid-phase reaction processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
PURPOSE:To improve the quality of quartz crucible and to reduce the production cost by providing taper between the plastic member of center core material and an elastic member, and gelling the sol type raw material of quartz crucible by using a die. CONSTITUTION:In the production of quartz crucible by the production technique of sol-gel method gelling a sol type raw material by using a mold, taper is provided between the plastic member of center core material and the elastic member. In this production, by providing the taper, the force needed to pull out the center core material is eliminated except the initial separation because the two members are substantially not brought into contact with each other after the separation until the pulling-out is finished, while, without taper, the force is needed until the pulling-out is finished. Consequently, the vibration of core material is pulling-out is not transferred to the wet gel and excess force are not given to the wet gel to lessen the generation of cracks. Thus the tapering has an important role for pulling out the core material. The best result is obtained when the taper is in the range of 0.5-3 deg..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21189587A JPS6456326A (en) | 1987-08-26 | 1987-08-26 | Production of quartz crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21189587A JPS6456326A (en) | 1987-08-26 | 1987-08-26 | Production of quartz crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6456326A true JPS6456326A (en) | 1989-03-03 |
Family
ID=16613419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21189587A Pending JPS6456326A (en) | 1987-08-26 | 1987-08-26 | Production of quartz crucible |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6456326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241511A (en) * | 1985-08-19 | 1987-02-23 | Nippon Shokubai Kagaku Kogyo Co Ltd | Combustion catalyst system and its process for combustion |
| JPS6280419A (en) * | 1985-10-02 | 1987-04-13 | Nippon Shokubai Kagaku Kogyo Co Ltd | Combustion catalyst system for low class hydro-carbon fuel and combustion method of using this system |
-
1987
- 1987-08-26 JP JP21189587A patent/JPS6456326A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241511A (en) * | 1985-08-19 | 1987-02-23 | Nippon Shokubai Kagaku Kogyo Co Ltd | Combustion catalyst system and its process for combustion |
| JPS6280419A (en) * | 1985-10-02 | 1987-04-13 | Nippon Shokubai Kagaku Kogyo Co Ltd | Combustion catalyst system for low class hydro-carbon fuel and combustion method of using this system |
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