CN101058473A - Process for producing quartz glass bar by continuous melting method - Google Patents
Process for producing quartz glass bar by continuous melting method Download PDFInfo
- Publication number
- CN101058473A CN101058473A CNA2007100208175A CN200710020817A CN101058473A CN 101058473 A CN101058473 A CN 101058473A CN A2007100208175 A CNA2007100208175 A CN A2007100208175A CN 200710020817 A CN200710020817 A CN 200710020817A CN 101058473 A CN101058473 A CN 101058473A
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- CN
- China
- Prior art keywords
- continuous
- quartz glass
- glass bar
- melting method
- diameter
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B20/00—Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention discloses a manufacturing technique of quartz glass bar through continuous fusing method, which comprises the following steps: putting high-purity quartz powder as raw material into tungsten-molybdenum copple of the continuous furnace through automatic feeding device continuously; supplying power; heating to fuse; heating 20-28h to 2100-2300 deg. c; beginning the artificial material-leading; starting the tractor; guiding the material on the tractor to drive and shape automatically; starting the bidirectional laser calipers at the discharge opening to detect the various conditions of outer radius of quartz bar continuously; controlling the diameter error of quartz bar locked on the controller; drawing and cutting the rod into random length continuously; obtaining the product.
Description
Technical field
The present invention relates to a kind of production method of quartz glass bar, particularly a kind of process for producing quartz glass bar by continuous melting method.
Background technology
In the prior art, there is following defective in process for producing quartz glass bar by continuous melting method and products thereof: one, technology is comparatively backward, heating and melting time and Intensity Design are unreasonable, make after the fusing raw material inside still remnant impurity fully discharge, the quartz glass bar product that causes drawing still has bubble, gas line and black core phenomenon, and quality product is relatively poor relatively; Two, owing to factors such as technology controlling and process, the product may command diameter range of being produced is less, generally between 2-60MM.The quality product of quartz glass bar and controlled diameter range thereof will be directly connected to its range of application, and the quartz glass bar that prior art is produced has seriously limited its range of application.
Summary of the invention
Technical problem to be solved by this invention is at the deficiencies in the prior art, provide a kind of new, can improve the quality of products and the process for producing quartz glass bar by continuous melting method of range of application.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of process for producing quartz glass bar by continuous melting method, is characterized in, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2100-2300 ℃ with furnace temperature in 20-28 hour, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Technical problem to be solved by this invention can also further realize by following technical scheme.Above-described a kind of process for producing quartz glass bar by continuous melting method is characterized in, in step (2), heats and furnace temperature is risen to 2180-2220 ℃ in 23-25 hour.
Technical problem to be solved by this invention can also further realize by following technical scheme.Above-described a kind of process for producing quartz glass bar by continuous melting method is characterized in, in step (2), heats and furnace temperature is risen to 2200 ℃ in 24 hours.
Technical problem to be solved by this invention can also further realize by following technical scheme.Above-described a kind of process for producing quartz glass bar by continuous melting method is characterized in, the diameter of described tungsten crucible is 450-550mm, and preferred 500mm highly is 1250-1500mm, preferred 1300mm; The diameter of tungsten crucible bottom blanking former is 80-120mm, preferred 80mm.
Technical problem to be solved by this invention can also further realize by following technical scheme.Above-described a kind of process for producing quartz glass bar by continuous melting method is characterized in that described tractor is provided with frequency transformer, locking frequency transformer speed when tractor draws automatically.
The beneficial effect of the technology of the present invention of the present invention and further design is:
1, heating and melting time of the present invention and Intensity Design are reasonable, the inner contained impurity of raw material is discharged fully, reduced fusing back impurities in raw materials content, made the quartz glass bar product of drawing not have bubble, gas line and black core phenomenon to produce, quality product is better.
2, the present invention uses the changing conditions of two-way laser caliper continuous detecting quartz pushrod external diameter, and on controller locking quartz pushrod production diameter error, can make diameter error be controlled at ± 0.1mm in, ensure the consistence and the stability of product diameter.
3, the technology of the present invention that further designs is by strengthening the volume of tungsten crucible, cooperate its rational heating and melting time and heating intensity, suitably controlled the volumetrical corresponding relation of melting process and tungsten crucible, can help under the prerequisite that the plurality of impurities that guarantees melt inside is fully discharged, improved the controlled diameter range of quartz glass bar product, make the product diameter reaching 80mm when above, still can keep the better products quality.
Embodiment
Further describe concrete technology implementation scheme of the present invention below, so that those skilled in the art further understand the present invention, rather than to the restriction of right of the present invention.
Embodiment 1.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2100 ℃ with furnace temperature in 20 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 2.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2300 ℃ with furnace temperature in 28 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 3.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2200 ℃ with furnace temperature in 24 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 4.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2180 ℃ with furnace temperature in 23 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 5.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2220 ℃ with furnace temperature in 25 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 6.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2150 ℃ with furnace temperature in 26 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 7.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2250 ℃ with furnace temperature in 22 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 8.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2120 ℃ with furnace temperature in 21 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 9.A kind of process for producing quartz glass bar by continuous melting method, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2280 ℃ with furnace temperature in 27 hours, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
Embodiment 10.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, the diameter of described tungsten crucible is 500mm, highly is 1300mm; The diameter of tungsten crucible bottom blanking former is 80mm.
Embodiment 11.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, the diameter of described tungsten crucible is 450mm, highly is 1250mm; The diameter of tungsten crucible bottom blanking former is 85mm.
Embodiment 12.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, the diameter of described tungsten crucible is 550mm, highly is 1500mm; The diameter of tungsten crucible bottom blanking former is 120mm.
Embodiment 13.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, the diameter of described tungsten crucible is 520mm, highly is 1400mm; The diameter of tungsten crucible bottom blanking former is 90mm.
Embodiment 14.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, the diameter of described tungsten crucible is 480mm, highly is 1350mm; The diameter of tungsten crucible bottom blanking former is 100mm.
Embodiment 15.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, the diameter of described tungsten crucible is 540mm, highly is 1450mm; The diameter of tungsten crucible bottom blanking former is 110mm.
Embodiment 16.In the described any process for producing quartz glass bar by continuous melting method of embodiment 1-9, described tractor is provided with frequency transformer, locking frequency transformer speed when tractor draws automatically.
Claims (6)
1, a kind of process for producing quartz glass bar by continuous melting method is characterized in that, its step is as follows:
(1) the raw material high-purity ground quartz is dropped in the tungsten crucible of continuous induction melting furnace continuously by automatic feeding device, send electrically heated to carry out fusion;
(2) after heating rose to 2100-2300 ℃ with furnace temperature in 20-28 hour, begin manually to draw material;
(3) start tractor, will draw and expect to guide to draw shaping on the tractor automatically;
(4) start the changing conditions of the set two-way laser caliper continuous detecting quartz pushrod external diameter of feed opening, and lock quartz pushrod production diameter error on controller, continuous drawing also is cut into random length, gets finished product.
2, a kind of process for producing quartz glass bar by continuous melting method according to claim 1 is characterized in that, in step (2), heats and furnace temperature is risen to 2180-2220 ℃ in 23-25 hour.
3, a kind of process for producing quartz glass bar by continuous melting method according to claim 2 is characterized in that, in step (2), heats and furnace temperature is risen to 2200 ℃ in 24 hours.
4, according to claim 1 or 2 or 3 described a kind of process for producing quartz glass bar by continuous melting method, it is characterized in that the diameter of described tungsten crucible is 450-550mm, highly is 1250-1500mm; The diameter of tungsten crucible bottom blanking former is 80-120mm.
5, a kind of process for producing quartz glass bar by continuous melting method according to claim 4 is characterized in that, the diameter of described tungsten crucible is 500mm, highly is 1300mm; The diameter of tungsten crucible bottom blanking former is 80mm.
6, according to claim 1 or 2 or 3 described a kind of process for producing quartz glass bar by continuous melting method, it is characterized in that described tractor is provided with frequency transformer, locking frequency transformer speed when tractor draws automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100208175A CN101058473A (en) | 2007-04-05 | 2007-04-05 | Process for producing quartz glass bar by continuous melting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100208175A CN101058473A (en) | 2007-04-05 | 2007-04-05 | Process for producing quartz glass bar by continuous melting method |
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| Publication Number | Publication Date |
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| CN101058473A true CN101058473A (en) | 2007-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100208175A Pending CN101058473A (en) | 2007-04-05 | 2007-04-05 | Process for producing quartz glass bar by continuous melting method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424522A (en) * | 2011-09-13 | 2012-04-25 | 徐传龙 | Large-caliber laser quartz rod and preparation method thereof |
| CN103319076A (en) * | 2013-07-08 | 2013-09-25 | 连云港华凌石英制品有限公司 | Manufacturing method of thick-walled small-bore quartz glass tube |
| CN111302605A (en) * | 2020-04-07 | 2020-06-19 | 江苏圣达石英制品有限公司 | Continuous melting furnace for producing quartz glass rod with diameter phi of 600mm and preparation method |
| CN112551532A (en) * | 2020-12-03 | 2021-03-26 | 东海县奥兰石英科技有限公司 | Process for removing impurities in quartz powder by continuous melting high-temperature thermal state method |
| CN115057609A (en) * | 2022-07-13 | 2022-09-16 | 丁星 | Optical fiber manufacturing raw material hot melting device |
| CN116573838A (en) * | 2023-03-20 | 2023-08-11 | 内蒙古义通新能源有限公司 | Continuous melting furnace for producing quartz glass rod and manufacturing process |
-
2007
- 2007-04-05 CN CNA2007100208175A patent/CN101058473A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424522A (en) * | 2011-09-13 | 2012-04-25 | 徐传龙 | Large-caliber laser quartz rod and preparation method thereof |
| CN103319076A (en) * | 2013-07-08 | 2013-09-25 | 连云港华凌石英制品有限公司 | Manufacturing method of thick-walled small-bore quartz glass tube |
| CN111302605A (en) * | 2020-04-07 | 2020-06-19 | 江苏圣达石英制品有限公司 | Continuous melting furnace for producing quartz glass rod with diameter phi of 600mm and preparation method |
| CN112551532A (en) * | 2020-12-03 | 2021-03-26 | 东海县奥兰石英科技有限公司 | Process for removing impurities in quartz powder by continuous melting high-temperature thermal state method |
| CN112551532B (en) * | 2020-12-03 | 2022-03-08 | 东海县奥兰石英科技有限公司 | Process for removing impurities in quartz powder by continuous melting high-temperature thermal state method |
| CN115057609A (en) * | 2022-07-13 | 2022-09-16 | 丁星 | Optical fiber manufacturing raw material hot melting device |
| CN115057609B (en) * | 2022-07-13 | 2024-06-11 | 康克科技(深圳)有限公司 | Raw material hot melting device for optical fiber manufacturing |
| CN116573838A (en) * | 2023-03-20 | 2023-08-11 | 内蒙古义通新能源有限公司 | Continuous melting furnace for producing quartz glass rod and manufacturing process |
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Open date: 20071024 |