JPS5678433A - Production of glass pipe - Google Patents
Production of glass pipeInfo
- Publication number
- JPS5678433A JPS5678433A JP15240079A JP15240079A JPS5678433A JP S5678433 A JPS5678433 A JP S5678433A JP 15240079 A JP15240079 A JP 15240079A JP 15240079 A JP15240079 A JP 15240079A JP S5678433 A JPS5678433 A JP S5678433A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- heaters
- temperature
- melted glass
- melted
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
Abstract
PURPOSE:The temperatures of melted glass in the main part and in the nozzle part of a crucible are controlled separately with different heaters, thus producing, with industrial simplicity, glass pipes with uniform wall thickness with high accuracy even when a small amount of pipes are produced. CONSTITUTION:Nozzle 2 is sealed at the bottom part under cooling with water cooler 13 and glass is fed until the level of the melted glass comes to a set height. Then, heaters 6, 7 are used to keep the temperature of the melted glass to 1050 deg.C at which the viscosity of melted glass shows about 10<1.5> poise for logner than 6hr to effect deaeration and uniform distribution of temperature. Then, heaters 6, 7, and 8 are set to 720, 735 and 685 deg.C respectively, at which the viscosity becomes about 10<5.2>, 10<4.5> and 10<6.2> poises respectively, and kept for 1.5hr to make each part the set tempeature. The water cooler 13 is demounted and a glass pipe is made under controlling heater 8 according to the temperature sensed by thermocouple 11, for example, a glass pipe of 25mm. outside diameter and 1mm. wall thickness 15 is made at a speed of 0.5m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54152400A JPS5838364B2 (en) | 1979-11-27 | 1979-11-27 | Glass pipe manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54152400A JPS5838364B2 (en) | 1979-11-27 | 1979-11-27 | Glass pipe manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5678433A true JPS5678433A (en) | 1981-06-27 |
| JPS5838364B2 JPS5838364B2 (en) | 1983-08-23 |
Family
ID=15539677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54152400A Expired JPS5838364B2 (en) | 1979-11-27 | 1979-11-27 | Glass pipe manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5838364B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109848U (en) * | 1985-12-27 | 1987-07-13 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS455651Y1 (en) * | 1967-01-25 | 1970-03-18 | ||
| JPS5138917U (en) * | 1974-09-14 | 1976-03-23 | ||
| JPS5313613A (en) * | 1976-07-23 | 1978-02-07 | Toshiba Ceramics Co | Apparatus for continuous production of rod or tube of opaque vitreous material |
| JPS5331166A (en) * | 1976-09-03 | 1978-03-24 | Citizen Watch Co Ltd | Lighting devi e of electronic watch |
-
1979
- 1979-11-27 JP JP54152400A patent/JPS5838364B2/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS455651Y1 (en) * | 1967-01-25 | 1970-03-18 | ||
| JPS5138917U (en) * | 1974-09-14 | 1976-03-23 | ||
| JPS5313613A (en) * | 1976-07-23 | 1978-02-07 | Toshiba Ceramics Co | Apparatus for continuous production of rod or tube of opaque vitreous material |
| JPS5331166A (en) * | 1976-09-03 | 1978-03-24 | Citizen Watch Co Ltd | Lighting devi e of electronic watch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5838364B2 (en) | 1983-08-23 |
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