CN102503115A - Method for producing low-hydroxy quartz glass fibers - Google Patents
Method for producing low-hydroxy quartz glass fibers Download PDFInfo
- Publication number
- CN102503115A CN102503115A CN2011103499465A CN201110349946A CN102503115A CN 102503115 A CN102503115 A CN 102503115A CN 2011103499465 A CN2011103499465 A CN 2011103499465A CN 201110349946 A CN201110349946 A CN 201110349946A CN 102503115 A CN102503115 A CN 102503115A
- Authority
- CN
- China
- Prior art keywords
- quartz glass
- diameter
- glass rod
- hydroxyl
- hydroxy
- 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
Landscapes
- Glass Melting And Manufacturing (AREA)
Abstract
The invention relates to a method for producing quartz glass fibers, in particular to a method for producing low-hydroxyl quartz glass fibers. According to the method, quartz sand is manufactured to form a coarse quartz glass rod by a continuous melting method, the coarse quartz glass rod is subjected to dehydroxylation and is melted and stretched to form a fine quartz glass rod by an electric melting method, and the fine quartz glass rod is stretched to form the quartz glass fibers by an oxy-hydrogen combustion method. According to the coarse quartz glass rod, structural vacancy caused in the process of removing metastable hydroxyl in the quartz glass rod can be repaired naturally in the process of melting and stretching the coarse quartz glass rod to form the fine quartz glass rod. By the method, the problem of high hydroxyl content of the produced fibers due to high hydroxyl content of the quartz glass rod produced by the conventional continuous melting method is avoided. According to the quartz glass fibers produced by the method, the hydroxyl content can be controlled to be about 5 ppm, so the method has the characteristics of simple production process and low requirements on the control of equipment and a production process, and is particularly suitable for producing the low-hydroxyl quartz glass fibers.
Description
Technical field
The present invention relates to a kind of working method of quartz glass fibre, be specifically related to a kind of method of manufacture of low-hydroxy-group squartz glass fiber.
Background technology
Usually produce the quartz glass bar that quartz glass fibre is used at present, generally be to adopt the continuous smelting method directly silica sand to be founded into the quartz glass bar of diameter 1.5 ~ 3.5mm, and then rod is drawn into quartz glass fibre.The quartz glass bar hydroxy radical content that adopts this method to produce is high, about 130ppm, and therefore, the cellulosic hydroxy content of its production is also high.The product of high hydroxyl content has influenced the ablation resistance of its product, and this makes quartz glass fibre in the use of high Mach aerospacecraft, be restricted.Abroad; Have and adopt sol-gel method to produce low hydroxyl silica fiber, its working method is earlier the organism of silicon to be processed silicon sol, and then silicon sol is adjusted to the silicon gel; In gel, reel off raw silk from cocoons into fiber again, under vacuum high-temperature, dewatering at last manufactures quartz glass fibre again.The quartz glass fibre that adopts this method to produce, hydroxy radical content can be controlled in the 5ppm.But its production process is too complicated, and the degree that requires of the control of equipment and production technique is higher than the excellent fiber elongation method of adopting quartz glass far away.
Summary of the invention
The objective of the invention is to: provide a kind of production cost low, the method for manufacture of the quartz glass fibre of the simply low hydroxy radical content of technology.
The present invention realizes above-mentioned purpose through following technical scheme:
A kind of working method of low-hydroxy-group squartz glass fiber is characterized in that: it may further comprise the steps:
1), at first adopt the continuous smelting method that silica sand is founded into the quartz glass bar that diameter is 15-40mm through continuous induction melting furnace;
2), the quartz glass bar of diameter 15-40mm is sent into vacuum deshydroxy stove; The vacuum degree control of vacuum deshydroxy stove is warming up to 1000-1100 ℃ then in 10Pa, kept constant temperature 0.5-2 hours; To remove metastable hydroxyl in the quartz glass bar, its hydroxy radical content is reached in the 5ppm;
3), the quartz glass bar behind the deshydroxy is adopted the electric smelting method, 1800 ℃-1900 ℃ the high temperature that produces through intermediate frequency furnace or resistance furnace, with the molten microlith English glass stick that pulls into diameter 1.5-3.5mm of the speed of 0.2 ~ 0.4m/s,
4), with 1800 ℃-2000 ℃ the high temperature that the microlith English glass stick of diameter 1.5-3.5mm adopts the oxyhydrogen combustion method to produce through oxy-hydrogen burner, can be drawn into the quartz glass fibre of low hydroxyl with the draw rate of 20-50 m/s.
The invention has the advantages that:
Adopt the present invention; Can go out to hang down the quartz glass fibre of hydroxyl with comparatively simple explained hereafter; And the structure vacancy that quartz glass bar is caused in the metastable hydroxyl process in removing quartz glass bar can obtain the nature reparation in melting the microlith English glass stick process that pulls into diameter 1.5-3.5mm.The quartz glass bar hydroxy radical content of having avoided existing continuous smelting method to produce is high, and then causes the also high problem of cellulosic hydroxy content of producing.The quartz glass fibre that adopts the present invention to produce, hydroxy radical content can be controlled at about 5ppm.And it is simple to have production process, to the control of equipment and production technique require the lower characteristics of degree, be specially adapted to the production of low-hydroxy-group squartz glass fiber.
Embodiment:
Below in conjunction with specific embodiment the present invention further is described below.
Embodiment 1:
(1) adopt the continuous smelting farad to process the quartz glass bar of diameter 20mm through continuous induction melting furnace silica sand.
(2) be that the quartz glass bar of 20mm is sent into vacuum deshydroxy stove with diameter, the vacuum degree control of vacuum deshydroxy stove is warming up to 1050 ℃ at 5Pa with vacuum deshydroxy stove, and keeps constant temperature 1 hour, to remove metastable hydroxyl in the quartz pushrod.
(3) quartz glass bar behind the deshydroxy is adopted the electric smelting method, through 1800 ℃ high temperature of intermediate frequency furnace or resistance furnace generation, with the molten microlith English glass stick that pulls into diameter 1.9mm of the speed of 0.3m/s.
(4) 2000 ℃ of high temperature that adopt the oxyhydrogen combustion method to produce through hydrogen, oxygen combustion the microlith English glass stick of diameter 1.9mm are drawn into quartz glass fibre with the draw rate of 25 m/s.
Embodiment 2:
(1) adopt the continuous smelting farad to process diameter 30mm quartz glass bar through continuous induction melting furnace silica sand.
(2) be that the quartz glass bar of 30mm is sent into vacuum deshydroxy stove with diameter, the vacuum degree control of vacuum deshydroxy stove is warming up to 1080 ℃ at 0.5Pa with vacuum deshydroxy stove, keeps constant temperature 1.5 hours, to remove metastable hydroxyl in the quartz pushrod.
(3) quartz glass bar behind the deshydroxy is adopted the electric smelting method, through 1800 ℃ high temperature of intermediate frequency furnace or resistance furnace generation, with the molten microlith English glass stick that pulls into diameter 2.0mm of the speed of 0.3m/s.
(4) 2000 ℃ of high temperature that adopt the oxyhydrogen combustion method to produce through hydrogen, oxygen combustion the microlith English glass stick of diameter 2.0mm are drawn into quartz glass fibre with the draw rate of 30 m/s.
Claims (1)
1. the working method of a low-hydroxy-group squartz glass fiber, it is characterized in that: it may further comprise the steps:
1), at first adopt the continuous smelting method that silica sand is founded into the quartz glass bar that diameter is 15-40mm through continuous induction melting furnace;
2), the quartz glass bar of diameter 15-40mm is sent into vacuum deshydroxy stove; The vacuum degree control of vacuum deshydroxy stove is warming up to 1000-1100 ℃ then in 10Pa, kept constant temperature 0.5-2 hours; To remove metastable hydroxyl in the quartz glass bar, its hydroxy radical content is reached in the 5ppm;
3), the quartz glass bar behind the deshydroxy is adopted the electric smelting method, 1800 ℃-1900 ℃ the high temperature that produces through intermediate frequency furnace or resistance furnace, with the molten microlith English glass stick that pulls into diameter 1.5-3.5mm of the speed of 0.2 ~ 0.4m/s,
4), with 1800 ℃-2000 ℃ the high temperature that the microlith English glass stick of diameter 1.5-3.5mm adopts the oxyhydrogen combustion method to produce through oxy-hydrogen burner, can be drawn into the quartz glass fibre of low hydroxyl with the draw rate of 20-50 m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103499465A CN102503115B (en) | 2011-11-08 | 2011-11-08 | Method for producing low-hydroxy quartz glass fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103499465A CN102503115B (en) | 2011-11-08 | 2011-11-08 | Method for producing low-hydroxy quartz glass fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102503115A true CN102503115A (en) | 2012-06-20 |
| CN102503115B CN102503115B (en) | 2013-11-13 |
Family
ID=46215266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103499465A Active CN102503115B (en) | 2011-11-08 | 2011-11-08 | Method for producing low-hydroxy quartz glass fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102503115B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745883A (en) * | 2012-07-31 | 2012-10-24 | 北京金格兰石英玻璃有限公司 | Device and method for melting and drawing quartz glass bars by actively pressurizing intermediate frequency furnace |
| CN105130183A (en) * | 2015-08-17 | 2015-12-09 | 武汉鑫友泰光电科技有限公司 | High temperature-resistant ultrafine quartz glass fiber cotton and preparation method thereof |
| CN111393022A (en) * | 2020-03-23 | 2020-07-10 | 黄冈师范学院 | Preparation method of high-purity low-hydroxyl quartz glass raw material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673135A (en) * | 2005-03-23 | 2005-09-28 | 荆州市菲利华石英玻璃有限公司 | Rod setting mechanism for founding quartz fiber |
| JP2006327858A (en) * | 2005-05-25 | 2006-12-07 | Fujikura Ltd | Method of treating quartz glass base material and method of manufacturing optical fiber preform |
| CN1890189A (en) * | 2003-12-09 | 2007-01-03 | 信越化学工业株式会社 | Method of stretching optical fiber base material and stretching device |
| CN101050054A (en) * | 2007-03-28 | 2007-10-10 | 徐胜利 | Vacuum deshydroxy method for quartz glass cell |
| CN101234845A (en) * | 2008-02-27 | 2008-08-06 | 徐胜利 | Method capable of drawing quartz glass pipe and quartz glass stick |
| CN101328014A (en) * | 2008-07-28 | 2008-12-24 | 湖北菲利华石英玻璃股份有限公司 | Manufacturing method of doping quartz glass fibre |
-
2011
- 2011-11-08 CN CN2011103499465A patent/CN102503115B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890189A (en) * | 2003-12-09 | 2007-01-03 | 信越化学工业株式会社 | Method of stretching optical fiber base material and stretching device |
| CN1673135A (en) * | 2005-03-23 | 2005-09-28 | 荆州市菲利华石英玻璃有限公司 | Rod setting mechanism for founding quartz fiber |
| JP2006327858A (en) * | 2005-05-25 | 2006-12-07 | Fujikura Ltd | Method of treating quartz glass base material and method of manufacturing optical fiber preform |
| CN101050054A (en) * | 2007-03-28 | 2007-10-10 | 徐胜利 | Vacuum deshydroxy method for quartz glass cell |
| CN101234845A (en) * | 2008-02-27 | 2008-08-06 | 徐胜利 | Method capable of drawing quartz glass pipe and quartz glass stick |
| CN101328014A (en) * | 2008-07-28 | 2008-12-24 | 湖北菲利华石英玻璃股份有限公司 | Manufacturing method of doping quartz glass fibre |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745883A (en) * | 2012-07-31 | 2012-10-24 | 北京金格兰石英玻璃有限公司 | Device and method for melting and drawing quartz glass bars by actively pressurizing intermediate frequency furnace |
| CN102745883B (en) * | 2012-07-31 | 2015-09-23 | 北京金格兰石英玻璃有限公司 | The intermediate frequency furnace that initiatively pressurizes melts the device and method drawing silica glass bar |
| CN105130183A (en) * | 2015-08-17 | 2015-12-09 | 武汉鑫友泰光电科技有限公司 | High temperature-resistant ultrafine quartz glass fiber cotton and preparation method thereof |
| CN105130183B (en) * | 2015-08-17 | 2017-07-11 | 武汉鑫友泰光电科技有限公司 | A kind of high temperature resistant superthin quartz cellucotton and preparation method thereof |
| CN111393022A (en) * | 2020-03-23 | 2020-07-10 | 黄冈师范学院 | Preparation method of high-purity low-hydroxyl quartz glass raw material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102503115B (en) | 2013-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104556678B (en) | A kind of preparation method of quantum dot-doped microcrystalline glass optical fiber | |
| CN102531377B (en) | Equipment and method for preparing micro-structured fiber preform of chalcogenide glass | |
| CN102503115B (en) | Method for producing low-hydroxy quartz glass fibers | |
| CN102173572B (en) | Method and equipment for manufacturing fully-synthesized oversize ultralow water peak optical fiber preform | |
| JP2011230987A (en) | Method for producing glass preform | |
| WO2020155707A1 (en) | Optical fiber preform rod of large size and low loss and preparation method therefor | |
| CN103011575A (en) | Method for preparing multihole infrared chalcogenide glass photonic crystal optical fiber preform | |
| CN201665620U (en) | Loose body optical fiber prefabrication rod integrative sintering degassing equipment | |
| CN110590151A (en) | Optical fiber preform production process and optical fiber preform thereof | |
| CN103030271B (en) | Method and device for producing low polarization mode dispersion optical fiber | |
| JP5046500B2 (en) | Manufacturing method of glass preform for optical fiber | |
| CN102745883B (en) | The intermediate frequency furnace that initiatively pressurizes melts the device and method drawing silica glass bar | |
| EP2684851A3 (en) | Synthetic quartz glass for forming nanoimprint molds and method of making the glass by flame hydrolysis | |
| CN113461322B (en) | Optical fiber and method for manufacturing optical fiber preform | |
| CN213060660U (en) | Optical fiber drawing annealing device | |
| CN210261562U (en) | Optical fiber perform sintering equipment | |
| CN202688175U (en) | Device for actively pressurizing intermediate frequency furnace for fusing and drawing quartz glass bar | |
| CN203007124U (en) | Device for producing diboron trioxide doped stress bar | |
| CN100590084C (en) | Quartz rod production method | |
| CN203007125U (en) | Device for producing polarization mode dispersion optical fiber | |
| CN109160724A (en) | The preparation method of quartz stone roller | |
| CN101289272A (en) | Production method of profiled silex glass holding bar and apparatus | |
| JP4526311B2 (en) | Method for producing quartz glass crucible | |
| CN1031067A (en) | Thick-walled transparent quartz-glass tube manufacture method and device | |
| CN202022852U (en) | Total synthesis oversize ultra-low-water-peak optical fiber preform manufacturing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A production method of low hydroxyl quartz glass fiber Effective date of registration: 20230925 Granted publication date: 20131113 Pledgee: China Everbright Bank Co.,Ltd. Jingzhou Branch Pledgor: HUBEI FEILIHUA QUARTZ GLASS Co.,Ltd. Registration number: Y2023980058350 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |