CN117003476A - Preparation device and method of fluorine-based glass optical fiber preform cladding hollow tube - Google Patents
Preparation device and method of fluorine-based glass optical fiber preform cladding hollow tube Download PDFInfo
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- CN117003476A CN117003476A CN202310658006.7A CN202310658006A CN117003476A CN 117003476 A CN117003476 A CN 117003476A CN 202310658006 A CN202310658006 A CN 202310658006A CN 117003476 A CN117003476 A CN 117003476A
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- crucible container
- clamp holder
- hollow
- hollow connector
- fluorine
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- 239000011521 glass Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 239000013307 optical fiber Substances 0.000 title claims abstract description 31
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000011737 fluorine Substances 0.000 title claims abstract description 26
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 26
- 238000005253 cladding Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title description 6
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000000137 annealing Methods 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000006121 base glass Substances 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/04—Other methods of shaping glass by centrifuging
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
-
- 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
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
-
- 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
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
A preparation device and a preparation method of a fluorine-based glass optical fiber preform cladding hollow tube. In the device, the air pressure is reduced in a closed crucible environment, and the constant rotation rate is used for assisting, so that dissolved gas in the glass liquid can be effectively discharged, and the fluorine-based glass preform cladding hollow tube with no bubbles, high uniformity and high interface quality can be automatically/semi-automatically prepared. The preparation method has short preparation period and is expected to be applied to the preparation of the fluorine-based optical fiber preform with a high-quality core-spun structure.
Description
Technical Field
The invention relates to a fluorine-based glass fiber cladding hollow tube, in particular to a preparation device and a preparation method of a fluorine-based glass fiber preform cladding hollow tube, which are particularly suitable for multimode energy transmission with a core cladding structure and preparation of a gain fiber preform cladding, and the hollow tube has the advantages of good inner surface quality, no bubbles and high uniformity.
Background
The near-middle infrared band energy transmission and laser generation have important research values in the fields of global communication, micro device preparation, medical operation, gas detection, national defense infrared countermeasure and the like. The method is used for ultra-long distance signal transmission, high-power energy transmission, energy transmission generated by high-power laser and gain optical fiber lifting research. As one of excellent mid-infrared materials, fluorine-based glass materials are widely used in the manufacture of near-mid-infrared lasers, amplifiers, energy-transmitting optical fibers, and the like due to their low phonon energy, ultra-low mid-infrared theoretical loss, high infrared transmittance, and far infrared cut-off edge. Among them, the preparation of high-quality fluorine-based optical fiber perform generally encounters various problems such as core eccentricity, bubbles, crystallization and the like, and brings challenges to the industrialized preparation of the optical fiber perform. The traditional preparation of the optical fiber preform involves the transfer of glass liquid from a crucible to a mold, so that the problems of increased internal stress of glass, difficult elimination of bubbles, low repetition rate and the like are caused, and a novel preparation device and a novel preparation process are urgently needed. Therefore, the preparation device and the process technology for casting the closed low-pressure coil are designed, so that bubbles in glass can be effectively removed, and automatic/semi-automatic preparation of the optical fiber preform is realized.
Disclosure of Invention
The invention aims to provide a preparation device and a preparation method of a fluorine-based glass optical fiber preform cladding hollow tube. Compared with the prior preparation method and device, the preparation method and device can prepare the fluorine-based glass optical fiber preform cladding hollow tube with no bubbles, high uniformity and high interface quality.
The technical scheme of the invention is as follows:
the utility model provides a preparation facilities of fluorine-based glass optical fiber perform cladding hollow tube, includes vertically placed be used for glass melting's high temperature heating furnace and lift platform, parallel placement be used for glass coil shaping and annealing stove and parallel movement connector, its characterized in that:
the device also comprises a top controller for controlling the device to rotate from vertical to parallel, a rotator for controlling the device to rotate at a high speed, a clamp for clamping and fixing, a crucible container for glass melting and a coil, and a hollow connector for closing the crucible container and providing a low-pressure environment;
the rotary device consists of a controller and a rotary rod, the lower end of the rotary rod is connected with the clamp holder, and a top controller is arranged above the controller;
the crucible container is a hollow cylindrical pipe and is formed by splicing two identical semicircular cylindrical pipes, the bottom of the crucible container is closed, an opening is formed in the upper part of the crucible container, and the hollow connector is arranged above the crucible container and is used for completely fixing and sealing the crucible container;
the lower part of the hollow connector is provided with a small hole opening for communicating the hollow connector with the gas in the crucible container, the upper part of the hollow connector is provided with an opening, and the upper part of the hollow connector is provided with a clamp holder for fixing and sealing the hollow connector;
the upper part of the clamp holder is provided with the rotator, the inside of the clamp holder is provided with a pipeline, the lower part of the pipeline is communicated with an opening above the hollow connector, the center of the pipeline is provided with a closed switch, the right end of the pipeline is provided with an opening, and the opening is connected with a pneumatic pump to reduce the internal air pressure of the device and stabilize the internal air pressure of the device through the closed switch;
the top controller is used for controlling the whole device to change from vertical placement to parallel placement.
The crucible container is made of heavy metals such as platinum and gold, the inner mirror surface of the crucible container is polished, and the upper opening is frosted.
The hollow connector is made of stainless steel, and the bottom of the hollow connector is used for sealing the part of the crucible container and the opening of the clamp holder connected above the part of the crucible container for frosting.
The method for preparing the fluorine-based glass optical fiber preform cladding hollow tube by using the preparation device of the fluorine-based glass optical fiber preform cladding hollow tube comprises the following steps:
1) Adding proportioned glass raw materials into a combined crucible container, fixing the crucible container on the hollow connector, fixing the hollow connector by using a clamp, connecting the top of the clamp with the rotary rod, vertically placing a holding device, and lifting the high-temperature heating furnace by using the lifting platform to enable the crucible container to be in the high-temperature heating furnace, so as to keep the crucible container suspended;
2) After the glass raw materials are melted, reducing the temperature of the high-temperature heating furnace, reducing the air pressure in the clamp holder, the hollow connector and the crucible container, isolating and stabilizing the air pressure in the clamp holder through a closed switch in the clamp holder, starting the rotator, slowly rotating the clamp holder, the hollow connector and the crucible container at a certain speed, and promoting the gas in the glass liquid to escape;
3) Stopping rotating, descending the high-temperature heating furnace, changing the device from vertical placement to parallel placement through the top controller, moving the annealing furnace leftwards through the parallel moving connector to enable the crucible container to be positioned in the annealing furnace, keeping the crucible container suspended, starting the controller, and rotating the clamp holder, the hollow connector and the crucible container at a high speed at a certain speed to enable glass liquid in the crucible container to form a hollow tube with uniform thickness under the action of centrifugal force;
4) After the hollow tube is formed and the temperature is stable, the clamp holder, the hollow connector and the crucible container stop rotating, and annealing treatment is carried out through the annealing furnace.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, by providing a closed low-pressure environment and rotation disturbance, gas in the molten glass is effectively promoted to escape, a manual casting process is omitted, the feasibility and repeatability of preparation are improved, and meanwhile, the closed environment effectively isolates the external atmosphere, so that the pollution of impurity particles in the preparation process is effectively prevented;
2. the obtained fluorine-based glass optical fiber preform has the advantages of high internal interface quality of the cladding hollow tube, uniform tube wall thickness, no bubbles, simple and automatic preparation method, short preparation period and is expected to be applied to the preparation of the fluorine-based optical fiber preform with a high-quality core-cladding structure.
Drawings
FIG. 1 is a schematic diagram of a preparation apparatus for a fluorine-based glass optical fiber preform cladding hollow tube;
FIG. 2 is a schematic cross-sectional view of a crucible container part;
FIG. 3 is a schematic cross-sectional view of a hollow connector;
FIG. 4 is a schematic view of a glass optical fiber preform clad hollow tube obtained in example 1 of the present invention;
FIG. 5 is a schematic view of a glass optical fiber preform clad hollow tube obtained in comparative example 1.
Detailed Description
The following specific embodiments are provided to illustrate the present invention and to assist in further understanding of the present invention, but the specific details of the embodiments are merely for the purpose of illustrating the invention and do not represent all the technical solutions under the inventive concept, and therefore should not be construed as limiting the general technical solutions of the present invention, and some insubstantial additions and modifications, such as simple changes or substitutions of technical features with the same or similar technical effects, which do not deviate from the inventive concept, are considered by the skilled person to be within the scope of the present invention.
Fig. 1 is a schematic view of a device for preparing a hollow tube of a cladding layer of a fluorine-based glass optical fiber preform, which is characterized in that the device comprises a high-temperature heating furnace 7 and a lifting platform 8 which are vertically arranged and used for glass melting, an annealing furnace 9 and a parallel moving connector 10 which are parallelly arranged and used for glass coil forming and annealing, and the device is characterized in that: the device also comprises a top controller 1 for controlling the device to rotate from vertical to parallel, a rotator for controlling the device to spin at a high speed, a clamp 4 for clamping and fixing, a crucible container 6 for glass melting and coiling, and a hollow connector 5 for closing the crucible container 6 and providing a low-pressure environment;
the rotator is composed of a controller 2 and a rotating rod 3, the lower end of the rotating rod 3 is connected with the clamp 4, and the top controller 1 is arranged above the controller 2;
referring to fig. 2, the crucible container 6 is a hollow cylindrical tube, and is formed by splicing two identical semicircular cylindrical tubes, the bottom of the crucible container is closed, an opening is arranged above the crucible container 6, and the hollow connector 5 is arranged above the crucible container 6 and is used for completely fixing and sealing the crucible container 6;
referring to fig. 3, a small hole opening is provided below the hollow connector 5 for communicating the hollow connector 5 with the gas in the crucible container 6, an opening is provided above the hollow connector 5, and a clamp 4 is provided above the hollow connector 5, wherein the clamp 4 is used for fixing and sealing the hollow connector 5;
the upper part of the clamp holder 4 is provided with the rotator, the inside of the clamp holder 4 is provided with a pipeline, the lower part of the pipeline is communicated with an opening above the hollow connector 5, the center of the pipeline is provided with a closed switch, the right end of the pipeline is provided with an opening, and the opening is connected with the internal air pressure of the air pressure pump to reduce the internal air pressure of the device and stabilize the internal air pressure of the device through the closed switch;
the top controller 1 is used to control the overall device from a vertical to a parallel arrangement.
The crucible container 6 is made of heavy metals such as platinum and gold, the inner mirror surface of the crucible container 6 is polished, and the upper opening is frosted.
The hollow connector 5 is made of stainless steel, and the bottom of the hollow connector is used for sealing the part of the crucible container 6 and the opening above the crucible container and connected with the clamp 4 for polishing.
The method for preparing the fluorine-based glass optical fiber preform cladding hollow tube by using the preparation device of the fluorine-based glass optical fiber preform cladding hollow tube comprises the following steps:
1) Adding proportioned glass raw materials into a combined crucible container 6, fixing the crucible container 6 on the hollow connector 5, fixing the hollow connector 5 by using a clamp 4, connecting the top of the clamp 4 with the rotary rod 3, vertically placing a holding device, and lifting the high-temperature heating furnace 7 by using the lifting platform 8 to enable the crucible container 6 to be in the high-temperature heating furnace 7 with the temperature raised to 900-1000 ℃ so as to keep the crucible container 6 suspended;
2) After the glass raw materials are melted, the temperature of the high-temperature heating furnace 7 is reduced to 600 ℃, and simultaneously, a pneumatic pump is connected with the right opening of the clamp holder 4, the pneumatic pressure in the clamp holder 4, the hollow connector 5 and the crucible container 6 is reduced to 0.3-0.5 times of atmospheric pressure, a closed switch in the clamp holder 4 is closed, the controller 2 is opened, so that the clamp holder 4 and the hollow connector 5) and the crucible container 6 slowly rotate at the speed of 100-150 r/min, and the gas in the glass liquid is promoted to escape;
3) Stopping rotating, regulating the lifting platform 8 to descend the high-temperature heating furnace 7, changing the vertical arrangement of the device into parallel arrangement by regulating the top controller 1, moving the annealing furnace 9 leftwards by parallel movement of the connector 10, enabling the crucible container 6 to be positioned in the annealing furnace 9 heated to 210-240 ℃, keeping the crucible container 6 suspended, starting the controller 2, rotating the clamp holder 4, the hollow connector 5 and the crucible container 6 at a speed of 1000-1600 r/min, and enabling glass liquid in the crucible container 6 to form a hollow tube with uniform thickness under the action of centrifugal force;
4) After the hollow tube is formed and the temperature is stable, the rotation of the clamp holder 4, the hollow connector 5 and the crucible container 6 is stopped, the temperature of the annealing furnace (9) is changed to 220-240 ℃, the glass tube is kept in the annealing furnace 9 for annealing treatment for 240 minutes, the annealing furnace 9 is closed and gradually cooled to room temperature, and the crucible container 6 is disassembled to take out a finished product.
Table 1 is a table of parameters corresponding to each embodiment of the present invention.
Example 1
The preparation device for preparing the fluorine-based glass optical fiber preform cladding hollow tube is shown in fig. 1, a crucible container is combined, the proportioned glass raw materials are added into the crucible container through an opening above the crucible container, the crucible container is fixed on a hollow connector through a screw, and after the high-temperature heating furnace is heated according to the melting temperature of # 1 in table 1, the crucible container is placed in the high-temperature heating furnace and kept suspended. After the raw materials are sufficiently melted, the temperature of the high-temperature heating furnace is reduced to 600 ℃, the air pressure in the hollow connector and the crucible container is reduced to the air pressure parameter of 1# in table 1, and the clamp holder, the hollow connector and the crucible container are slowly rotated at the slow rotation speed of 1# in table 1, so that the gas in the molten glass is caused to escape. And after the temperature is stabilized, continuously rotating for 10 minutes, stopping rotating, rapidly transferring the crucible container to an annealing furnace which is heated to the casting temperature of 1# in table 1, keeping the crucible container suspended, and rotating the clamp holder, the hollow connector and the crucible container at a high speed at the rapid rotation rate of 1# in table 1, so that glass liquid in the crucible container forms a hollow tube with uniform thickness under the action of centrifugal force. After the hollow tube is formed and the temperature is stable, stopping rotating, setting the temperature of the annealing furnace to be the annealing temperature of No. 1 in table 1, keeping the glass tube in the annealing furnace for 240 minutes, closing the annealing furnace, gradually cooling to room temperature, and removing the crucible container to take out a finished product.
The obtained glass optical fiber preform clad hollow tube is shown in FIG. 4, and no obvious bubbles are found.
Comparative example 1
Adding the glass raw materials with the mixture ratio into a platinum crucible, fully melting at 900 ℃ to obtain clear and transparent glass liquid, and preserving heat at 600 ℃. Placing a platinum tube with the same structure as the crucible container in example 1 in an annealing furnace at 180 ℃ for full preheating, slowly casting glass liquid into the platinum tube after the temperature is stable, sealing the platinum tube, placing the platinum tube in the annealing furnace, rotating at a high speed of 1000r/min to obtain a hollow glass tube, raising the temperature of the annealing furnace to 220 ℃ and preserving the heat for 240 minutes, and closing the annealing furnace for natural cooling to the room temperature.
The glass optical fiber preform clad hollow tube obtained in comparative example 1 was shown in FIG. 5, and bubbles of various sizes appeared on the surface and inside of the tube wall.
Table 1:
Claims (4)
1. the preparation facilities of fluorine base glass optical fiber perform cladding hollow tube, including vertical high temperature heating furnace (7) and lift platform (8) that are used for glass founding of placing, annealing stove (9) and parallel connector (10) that are used for glass coil shaping and annealing of placing, its characterized in that: the device also comprises a top controller (1) for controlling the device to rotate from vertical to parallel, a rotator for controlling the device to rotate at a high speed, a clamp holder (4) for clamping and fixing, a crucible container (6) for glass melting and coil pipe, and a hollow connector (5) for closing the crucible container (6) and providing a low-pressure environment; the rotary device is composed of a controller (2) and a rotary rod (3), the lower end of the rotary rod (3) is connected with the clamp holder (4), and a top controller (1) is arranged above the controller (2);
the crucible container (6) is a hollow cylindrical pipe and is formed by splicing two identical semicircular cylindrical pipes, the bottom of the crucible container is closed, an opening is formed in the upper part of the crucible container, and the hollow connector (5) is arranged above the crucible container (6) and is used for completely fixing and sealing the crucible container (6);
a small hole opening is arranged below the hollow connector (5) and used for communicating the hollow connector (5) with the gas in the crucible container (6), an opening is arranged above the hollow connector (5), and a clamp holder (4) is arranged above the hollow connector (5) and used for fixing and sealing the hollow connector (5);
a rotator is arranged above the clamp holder (4), a pipeline is arranged in the clamp holder (4), the lower part of the pipeline is communicated with an opening above the hollow connector (5), a closed switch is arranged in the center of the pipeline, an opening is arranged at the right end of the pipeline, and the opening is connected with the internal air pressure of the air pressure pump reducing device and stabilizes the internal air pressure of the device through the closed switch;
the top controller (1) is used for controlling the whole device to change from vertical placement to parallel placement.
2. The preparation device of the fluorine-based glass optical fiber preform cladding hollow tube according to claim 1, wherein the crucible container (6) is made of heavy metals such as platinum and gold, the crucible container (6) is internally mirror polished, and an upper opening is frosted.
3. The device for preparing the fluorine-based glass optical fiber preform cladding hollow tube according to claim 1, wherein the hollow connector (5) is made of stainless steel, and the bottom of the hollow connector is sealed with the part of the crucible container (6) and the opening above the crucible container, which is connected with the clamp holder (4), is subjected to frosting treatment.
4. A method for producing a fluorine-based glass optical fiber preform clad hollow tube by using the apparatus for producing a fluorine-based glass optical fiber preform clad hollow tube as defined in any one of claims 1 to 3, characterized by comprising the steps of:
1) Adding proportioned glass raw materials into a combined crucible container (6), fixing the crucible container (6) on the hollow connector (5), fixing the hollow connector (5) by using a clamp holder (4), connecting the top of the clamp holder (4) with the rotating rod (3), vertically placing a holding device, and lifting the high-temperature heating furnace (7) by using the lifting platform (8), so that the crucible container (6) is positioned in the high-temperature heating furnace (7), and keeping the crucible container (6) suspended;
2) After the glass raw materials are melted, the temperature of the high-temperature heating furnace (7) is reduced, meanwhile, the air pressure in the clamp holder (4), the hollow connector (5) and the crucible container (6) is reduced, the internal air pressure is isolated and stabilized through a closed switch in the clamp holder (4), the rotator is opened, the clamp holder (4), the hollow connector (5) and the crucible container (6) are slowly rotated at a certain speed, and the gas in glass liquid is promoted to escape;
3) Stopping rotating, descending the high-temperature heating furnace (7), changing the device from vertical placement to parallel placement through the top controller (1), moving the annealing furnace (9) leftwards through the parallel movement connector (10), enabling the crucible container (6) to be positioned in the annealing furnace (9), keeping the crucible container (6) suspended, then starting the controller (2), rotating the clamp holder (4), the hollow connector (5) and the crucible container (6) at a high speed at a certain speed, and enabling glass liquid in the crucible container (6) to form a hollow tube with uniform thickness under the centrifugal force;
4) After the hollow tube is formed and the temperature is stable, the rotation of the clamp holder (4), the hollow connector (5) and the crucible container (6) is stopped, and annealing treatment is carried out through the annealing furnace (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310658006.7A CN117003476A (en) | 2023-06-05 | 2023-06-05 | Preparation device and method of fluorine-based glass optical fiber preform cladding hollow tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310658006.7A CN117003476A (en) | 2023-06-05 | 2023-06-05 | Preparation device and method of fluorine-based glass optical fiber preform cladding hollow tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117003476A true CN117003476A (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310658006.7A Pending CN117003476A (en) | 2023-06-05 | 2023-06-05 | Preparation device and method of fluorine-based glass optical fiber preform cladding hollow tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117003476A (en) |
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2023
- 2023-06-05 CN CN202310658006.7A patent/CN117003476A/en active Pending
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