CN112979152A - Centrifugal rotary casting machine for manufacturing multi-component glass optical fiber perform - Google Patents
Centrifugal rotary casting machine for manufacturing multi-component glass optical fiber perform Download PDFInfo
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- CN112979152A CN112979152A CN202110515020.2A CN202110515020A CN112979152A CN 112979152 A CN112979152 A CN 112979152A CN 202110515020 A CN202110515020 A CN 202110515020A CN 112979152 A CN112979152 A CN 112979152A
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- 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
- C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
- C03B37/01271—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by centrifuging
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Abstract
The invention discloses a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform, and relates to glass optical fiber preform production equipment, in particular to the production of various multi-component glass optical fiber preforms such as a fluoride glass rod, a silicate glass rod, a tellurate glass rod and a phosphate glass rod. The device consists of a rack, a forming die, a die turnover mechanism, a die rotating mechanism, a heat preservation furnace moving mechanism and a heat preservation furnace; the forming die is arranged into a multi-petal structure, so that the formed glass rod can be conveniently demoulded, and the station switching of the forming die is realized through the die turnover mechanism; the mould turnover mechanism is positioned above the rack, and the mould rotating mechanism is used for realizing the self-rotation of the forming mould; the hearth of the heat preservation furnace is hollow, the single side of the hearth is closed, and the center height of the heat preservation furnace is coincided with the center of the forming mold in a horizontal state; the heat preservation furnace moving mechanism is arranged below the rack, and the heat preservation furnace moving motor, the ball screw, the guide rail and the moving platform are adopted to realize station switching of the heat preservation furnace.
Description
Technical Field
The invention discloses a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform, and relates to glass optical fiber preform production equipment, in particular to the production of various multi-component glass optical fiber preforms such as a fluoride glass rod, a silicate glass rod, a tellurate glass rod and a phosphate glass rod.
Background
In recent years, optical characteristics of various glass optical fibers have been discovered and recognized, and have been gaining value in optical devices, communications, laser transmission, and the like. The traditional mould forming is difficult to control the forming temperature gradient, diffusion homogenization and the like, and the formed preform has poor consistency. In view of the wide variety of glass optical fiber materials and the wide variety of doping ratios of the components, in order to adapt to research and industrialization acceleration, in the rod-making link of the glass optical fiber, equipment for quickly, stably and reliably making the glass preform is needed.
Disclosure of Invention
The invention aims to provide a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform, which realizes the rapid and stable molding of the glass preform.
A centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform is realized by adopting the following technical scheme:
a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber perform mainly comprises a frame, a forming mold, a mold turnover mechanism, a mold rotating mechanism, a heat preservation furnace moving mechanism and a heat preservation furnace.
The forming die is arranged into a multi-lobe structure, so that the demoulding of the formed glass rod is facilitated. The forming die is provided with two stations, namely a vertical station and a horizontal station. The forming die realizes station switching through the die turnover mechanism. The die turnover mechanism is positioned above the rack, and the turnover center of the die turnover mechanism is intersected and vertical with the center of the horizontal station of the forming die. The mould rotating mechanism is used for realizing the self-rotation of the forming mould, so that all components are fully diffused and homogenized in the forming and cooling process of the glass rod.
The heat preservation furnace is used for forming a certain heating and cooling environment, so that all components of the glass rod are fully diffused and homogenized, and the defects of cracking and the like caused by internal stress due to severe temperature change are avoided during forming. The hearth of the holding furnace is hollow, the single side of the hearth is closed, and the center height of the hearth coincides with the center of the forming die in the horizontal state. The heat preservation furnace is provided with two stations, namely a left station and a right station, so that the heat preservation state and the non-heat preservation state of the forming die can be switched.
The heat preservation furnace moving mechanism is arranged below the rack, and the heat preservation furnace moving motor, the ball screw, the guide rail and the moving platform are adopted to realize station switching of the heat preservation furnace.
The frame constitute by channel-section steel base, steel sheet subassembly etc. the steel sheet subassembly is fixed in channel-section steel base left side top.
The forming die consists of a die, a positioning ring, a hollow shaft, a locking nut and a plug. The mold adopts a three-petal structure, is positioned in a conical manner, and is centered by a left positioning ring and locked by a right locking nut. The plug is positioned at the end part of the locking nut and is used for screwing to prevent the solution from leaking.
The die turnover mechanism is composed of a die turnover transmission motor, a synchronous belt I, a synchronous belt wheel I, a turnover shaft, a bearing I, an electromagnetic brake, a proximity switch and a support. The die overturning transmission motor is arranged below the rack and is driven by a synchronous belt I and a synchronous pulley I to drive the overturning shaft to rotate, the bearings I are arranged on two sides of the overturning shaft, and the electromagnetic brake is arranged at one end of the overturning shaft and used for braking. The proximity switches are arranged on the support and are arranged in two groups, the installation positions are 90 degrees, and the proximity switches are used for detecting the position of the turnover shaft.
The mould rotary mechanism comprises a mould rotary transmission motor, a coupler, a rotating shaft and a second bearing, wherein the mould rotary transmission motor is connected with the rotating shaft by virtue of the coupler, and the second bearing is arranged on two sides of the rotating shaft. The forming die is arranged on the flange surface of the rotating shaft.
The heat preservation furnace moving mechanism consists of a heat preservation furnace moving transmission motor, a synchronous belt II, a synchronous belt pulley II, a ball screw, a guide rail and a moving platform. The moving platform is installed on the guide rail, and the holding furnace moving transmission motor drives the ball screw to rotate through the second synchronous belt and the second synchronous belt pulley, so that the moving platform installed on the guide rail is driven to move.
The heat preservation furnace consists of a furnace shell, a heat preservation part, a heating element, a temperature measuring element and a protective cover. The furnace shell is used for fixing the heat preservation part and the temperature measuring element, the heating element adopts a resistance wire and is embedded in the heat preservation part to form a hearth, one end of the hearth is open, and the other end of the hearth is closed.
When a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform works, the working conditions and the action sequence are as follows:
1. and starting the holding furnace and preheating to a certain temperature.
2. The mold turnover mechanism turns over the forming mold to a vertical station, opens the mold plug and places the funnel, rapidly pours the molten glass in the crucible into the mold through the funnel, and screws the mold plug.
2. The mold rotating mechanism is started to rotate, meanwhile, the mold overturning mechanism is started to overturn the forming mold to the horizontal station, and the forming mold is in a state of rotating and overturning at the same time.
3. And starting a heat preservation furnace moving mechanism after the forming mold is turned over to the horizontal station, translating the heat preservation furnace from the right station to the left station, enabling the forming mold in the horizontal station to be positioned in the hearth, and operating according to the set rotating speed, temperature and time.
4. After the forming die rotates according to set time and is cooled to normal temperature in a heat preservation mode, the forming die stops rotating, the heat preservation furnace moving mechanism is started, the heat preservation furnace moves in a translation mode and moves back to the right station, and then the die overturning mechanism is started to overturn the forming die to the vertical station.
5. And (4) unscrewing the mold plug, taking out the forming mold, opening the forming mold, and taking out the formed glass rod.
6. And stopping running and waiting for next starting.
A centrifugal rotary casting machine for manufacturing multi-component glass optical fiber perform provides a new forming technology for a rod-making mold of the glass optical fiber perform. Can be widely applied to manufacturing various multi-component glass optical fiber prefabricated rods such as fluoride glass rods, silicate glass rods, tellurate glass rods, phosphate glass rods and the like.
The centrifugal rotary casting machine for manufacturing the multi-component glass optical fiber perform rod is compact in structure and convenient to use. The operation personnel only need the manual work to accomplish pan feeding and unload, and the step in the middle of is order automatic completion, has higher degree of automation to rotation speed, heat preservation time, cooling gradient etc. all can set up. The method is particularly suitable for the research of the manufacturing process of a glass preform, especially a multi-component doped preform, and the formula is optimized. A centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber perform can realize the rapid and stable molding of the glass perform.
Drawings
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic view of a centrifugal spin casting machine for fabricating a multicomponent glass optical fiber preform 1;
FIG. 2 is a schematic view of a centrifugal spin casting machine for fabricating a multicomponent glass optical fiber preform 2;
FIG. 3 is a schematic structural view of a frame of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform;
FIG. 4 is a schematic structural view of a forming mold of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform;
FIG. 5 is a schematic structural view of a mold turnover mechanism of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 1;
FIG. 6 is a schematic structural view of a mold turnover mechanism of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 2;
FIG. 7 is a schematic structural view of a mold rotating mechanism of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform;
FIG. 8 is a schematic structural view of a holding furnace moving mechanism of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 1;
FIG. 9 is a schematic structural view of a holding furnace moving mechanism of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 2;
FIG. 10 is a schematic structural view of a holding furnace moving mechanism of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 3;
FIG. 11 is a schematic view of a holding furnace of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 1;
FIG. 12 is a schematic view of a holding furnace of a centrifugal spin casting machine for manufacturing a multicomponent glass optical fiber preform 2.
Reference numerals:
1. the device comprises a rack, 2, a forming die, 3, a die turnover mechanism, 4, a die rotating mechanism, 5, a holding furnace moving mechanism, 6 and a holding furnace;
1-1, a channel steel base, 1-2 and a steel plate assembly; 2-1, a mold, 2-2, a positioning ring, 2-3, a hollow shaft, 2-4, a locking nut, 2-5 and a plug; 3-1, a mold turnover transmission motor, 3-2, a first synchronous belt, 3-3, a first synchronous belt wheel, 3-4, a turnover shaft, 3-5, a first bearing, 3-6, an electromagnetic brake, 3-7, a proximity switch, 3-8 and a bracket; 4-1, a mold rotation transmission motor 4-2, a coupler 4-3, a rotating shaft 4-4 and a bearing II; 5-1 parts of a heat preservation furnace moving transmission motor, 5-2 parts of a synchronous belt II, 5-3 parts of a synchronous belt wheel II, 5-4 parts of a ball screw, 5-5 parts of a guide rail, 5-6 parts of a moving platform, 6-1 parts of a furnace shell, 6-2 parts of a heat preservation part, 6-3 parts of a heating element, 6-4 parts of a temperature measuring element, 6-5 parts of a protective cover.
Detailed Description
Referring to the attached drawings 1-12, a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber perform mainly comprises a frame 1, a forming mold 2, a mold turnover mechanism 3, a mold rotating mechanism 4, a heat preservation furnace moving mechanism 5 and a heat preservation furnace 6.
The forming die 2 is designed into a multi-lobe structure, so that the formed glass rod can be conveniently demoulded. The forming die 2 is provided with two stations, which are a vertical station and a horizontal station respectively. The forming die 2 realizes station switching through the die turnover mechanism 3. The mold turnover mechanism 3 is positioned above the frame 1, and as shown in fig. 3, the turnover center of the mold turnover mechanism is intersected and vertical with the center of the horizontal station of the forming mold 2. The mould rotating mechanism 4 is used for realizing the self-rotation of the forming mould 2, so that all components are fully diffused and homogenized in the forming and cooling process of the glass rod.
The holding furnace 6 is used for forming a certain heating and cooling environment, so that all components of the glass rod are fully diffused and homogenized, and the defects of cracking and the like caused by internal stress due to severe temperature change are avoided during molding. The hearth of the holding furnace 6 is hollow, the single side of the hearth is closed, and the center height of the hearth is coincided with the center of the forming die 2 in a horizontal state. The holding furnace 6 is provided with two stations, namely a left station and a right station, so as to realize the switching between the heat preservation state and the non-heat preservation state of the forming die 2.
The heat preservation furnace moving mechanism 5 is arranged below the rack 1, and the heat preservation furnace station switching is realized by adopting a heat preservation furnace moving transmission motor 5-1, a ball screw 5-4, a guide rail 5-5 and a moving platform 5-6.
The frame 1 comprises a channel steel base 1-1, a steel plate component 1-2 and the like, wherein the steel plate component 1-2 is fixed above the left side of the channel steel base 1-1.
The forming die 2 consists of a die 2-1, a positioning ring 2-2, a hollow shaft 2-3, a locking nut 2-4 and a plug 2-5. The die 2-1 adopts a three-petal structure, is positioned in a conical manner, and is centered by the left positioning ring 2-2 and locked by the right locking nut 2-4. The plug 2-5 is positioned at the end part of the locking nut and is used for screwing to prevent the solution from leaking.
The mold turnover mechanism 3 is composed of a mold turnover transmission motor 3-1, a synchronous belt I3-2, a synchronous belt wheel I3-3, a turnover shaft 3-4, a bearing I3-5, an electromagnetic brake 3-6, a proximity switch 3-7 and a support 3-8. The mould overturning transmission motor 3-1 is arranged below the mould overturning transmission motor, the synchronous belt I3-2 and the synchronous belt wheel I3-3 are used for transmission to drive the overturning shaft 3-4 to rotate, the bearings 3-5 are arranged on two sides of the overturning shaft 3-4, and the electromagnetic brake 3-6 is arranged at one end of the overturning shaft 3-4 and used for braking. The proximity switches 3-7 are arranged on the brackets 3-8, the number of the proximity switches is two, the installation positions of the proximity switches are 90 degrees, and the proximity switches are used for detecting the positions of the turnover shafts 3-4.
The mold rotating mechanism 4 is composed of a mold rotating transmission motor 4-1, a coupler 4-2, a rotating shaft 4-3 and a bearing II 4-4, the mold rotating transmission motor 4-1 is connected with the rotating shaft 4-3 through the coupler 4-2, and the bearing II 4-4 is installed on two sides of the rotating shaft 4-3. The forming die 2 is arranged on the flange surface of the rotating shaft 4-3.
The heat preservation furnace moving mechanism 5 comprises a heat preservation furnace moving transmission motor 5-1, a synchronous belt II 5-2, a synchronous belt pulley II 5-3, a ball screw 5-4, a guide rail 5-5, a moving platform 5-6 and the like. The heat preservation furnace moving transmission motor 5-1 drives the ball screw 5-4 to rotate through the synchronous belt 5-2 and the synchronous belt wheel 5-3, and further drives the moving platform 5-6 arranged on the guide rail 5-5 to move.
The heat preservation furnace 6 comprises a furnace shell 6-1, a heat preservation part 6-2, a heating element 6-3, a temperature measuring element 6-4, a protective cover 6-5 and the like. The furnace shell 6-1 is used for fixing the heat preservation part 6-2 and the temperature measurement element 6-4, the heating element 6-3 adopts a resistance wire and is embedded in the heat preservation part 6-2 to form a hearth, one end of the hearth is open, and the other end of the hearth is closed. The temperature measuring element 6-4 adopts a thermocouple, a thermal resistor or a thermistor which is commercially available.
An electric appliance control box is matched with a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber perform, a PLC is arranged, and electric appliance control components are arranged for automatic control, so that the glass perform is quickly and stably molded.
The principle of the invention lies in that the molten glass is poured into the mould to rotate, turn over, preserve heat and form through a series of mechanisms, and the glass perform rod is prepared quickly, stably and in high quality.
When a centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform works, the working conditions and the action sequence are as follows:
1. the holding furnace 6 is started and preheated to a certain temperature.
2. The mould turnover mechanism 3 turns the forming mould 2 to a vertical station, opens the mould plug, places the funnel, pours the molten glass in the crucible into the mould rapidly through the funnel, and screws the mould plug.
2. The mold rotating mechanism 4 is started to rotate, meanwhile, the mold overturning mechanism 3 is started to overturn the forming mold 2 to a horizontal station, and in the process, the forming mold 2 is in a state of spinning and overturning at the same time.
3. And when the forming die 2 is turned to the horizontal station, starting the heat preservation furnace moving mechanism 5, and translating the heat preservation furnace 6 from the right station to the left station to enable the forming die 2 in the horizontal station to be in the hearth and operate according to the set rotating speed, temperature and time.
4. After rotating according to the set time and cooling to the normal temperature in a heat preservation way, the forming die 2 stops rotating, the heat preservation furnace moving mechanism 5 is started, the heat preservation furnace 6 is moved back to the right station in a translation way, and then the die overturning mechanism 3 is started to overturn the forming die 2 to the vertical station.
5. And (4) unscrewing the mold plug, taking out the forming mold 2, opening the forming mold 2, and taking out the formed glass rod.
6. And stopping running and waiting for next starting.
The invention is further illustrated by the following figures and examples.
Example 1: as shown in FIGS. 1-12, in the centrifugal spin casting machine, the forming mold 2 has a multi-lobe structure, which facilitates the demolding of the formed glass rod. The forming die 2 is designed with two stations: a vertical station and a horizontal station. The forming die 2 realizes station switching through the die turnover mechanism 3. The mould turnover mechanism 3 is positioned above the frame 1, and the rotation center is intersected and vertical with the center of the horizontal station of the forming mould 2. The mould rotating mechanism 4 is used for realizing the self-rotation of the forming mould 2, so that all components are fully diffused and homogenized in the forming and cooling process of the glass rod. The holding furnace 6 is used for forming a certain heating and cooling environment, so that all components of the glass rod are fully diffused and homogenized, and the defects of cracking and the like caused by internal stress due to severe temperature change are avoided during molding. The hearth of the holding furnace 6 is hollow, the single side is closed, and the centers of the center height forming die 2 are overlapped in the horizontal state. The holding furnace 6 is designed with two stations: a left station and a right station to realize the switching between the heat preservation state and the non-heat preservation state of the forming die 2.
In the foregoing, the forming mold 2 is designed to be a multi-lobe structure, which facilitates demolding of the formed glass rod.
In the foregoing, the forming die 2 is designed with two stations: a vertical station and a horizontal station. The forming die 2 realizes station switching through the die turnover mechanism 3. The mould turnover mechanism 3 is positioned above the frame 1, and the rotation center is intersected and vertical with the center of the horizontal station of the forming mould 2.
In the foregoing, the mold rotating mechanism 4 can realize the self-rotation of the forming mold 2, so that the components are fully diffused and homogenized in the forming and cooling process of the glass rod.
In the above, the holding furnace 6 can form a certain heating and cooling environment to make the components of the glass rod fully diffused and homogenized, and the defects such as cracking caused by internal stress due to drastic temperature change during molding are avoided.
In the foregoing, the hearth of the holding furnace 6 is hollow, one side is closed, and the centers of the center height forming mold 2 are overlapped in a horizontal state.
In the foregoing, the holding furnace 6 is designed with two stations: and the left station and the right station can realize the switching between the heat preservation state and the non-heat preservation state of the forming die 2.
The foregoing embodiments illustrate the general principles of the present invention, as well as the principal features and advantages thereof.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made in the possible embodiments of the present invention without departing from the spirit and scope of the present invention, and these changes and modifications are within the scope of the present invention.
Claims (8)
1. A centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber perform is characterized by comprising a frame, a forming mold, a mold turnover mechanism, a mold rotating mechanism, a heat preservation furnace moving mechanism and a heat preservation furnace;
the forming die is arranged into a multi-petal structure, so that demoulding of a formed glass rod is facilitated, the forming die is provided with two stations which are a vertical station and a horizontal station respectively, and the station switching of the forming die is realized through the die overturning mechanism;
the mould turnover mechanism is positioned above the rack, the turnover center of the mould turnover mechanism is intersected and vertical with the center of the horizontal station of the forming mould, and the mould rotating mechanism is used for realizing the self-rotation of the forming mould so as to fully diffuse and homogenize all components in the forming and cooling process of the glass rod;
the heat preservation furnace is used for forming a certain heating and cooling environment so as to fully diffuse and homogenize components of the glass rod, a hearth of the heat preservation furnace is hollow and is closed on one side, the center height of the heat preservation furnace is coincident with the center of the forming mold in a horizontal state, and the heat preservation furnace is provided with two stations which are a left station and a right station respectively so as to realize the switching between the heat preservation state and the non-heat preservation state of the forming mold;
the heat preservation furnace moving mechanism is arranged below the rack, and the heat preservation furnace moving motor, the ball screw, the guide rail and the moving platform are adopted to realize station switching of the heat preservation furnace.
2. The centrifugal spin caster for making a multicomponent glass optical fiber preform according to claim 1, wherein said frame is comprised of a channel base and a steel plate assembly secured to the channel base above the left side thereof.
3. The centrifugal spin casting machine according to claim 1, wherein the forming mold comprises a mold, a positioning ring, a hollow shaft, a locking nut, and a plug; the mould adopts three lamella formula structures, and the toper location relies on left side holding ring centering, right side lock nut locking, and the end cap is located lock nut tip for close soon, prevent that solution from leaking.
4. The centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform according to claim 1, wherein the mold turning mechanism comprises a mold turning transmission motor, a synchronous belt I, a synchronous belt wheel I, a turning shaft, a bearing I, an electromagnetic brake, a proximity switch and a bracket; the die overturning transmission motor is arranged below the rack and is driven by a synchronous belt I and a synchronous pulley I to drive the overturning shaft to rotate, the bearings I are arranged on two sides of the overturning shaft, and the electromagnetic brake is arranged at one end of the overturning shaft and used for braking.
5. The spin caster for manufacturing a preform of a multicomponent glass fiber according to claim 4, wherein the proximity switches are mounted on the frame at 90 ° to each other for detecting the position of the tilt axis in two groups.
6. The centrifugal spin casting machine according to claim 1, wherein the mold rotation mechanism comprises a mold rotation transmission motor, a coupler, a shaft, and a second bearing, the mold rotation transmission motor is connected to the shaft by the coupler, the second bearing is mounted on two sides of the shaft, and the molding mold is mounted on a flange surface of the shaft.
7. The centrifugal rotary casting machine for manufacturing a multi-component glass optical fiber preform according to claim 1, wherein the holding furnace moving mechanism comprises a holding furnace moving transmission motor, a second synchronous belt pulley, a ball screw, a guide rail and a moving platform; the moving platform is installed on the guide rail, and the holding furnace moving transmission motor drives the ball screw to rotate through the second synchronous belt and the second synchronous belt pulley, so that the moving platform installed on the guide rail is driven to move.
8. The centrifugal spin casting machine for making a multi-component glass optical fiber preform according to claim 1, wherein the holding furnace comprises a furnace shell, a holding member, a heating element, a temperature measuring element, and a protective cover; the furnace shell is used for fixing the heat preservation part and the temperature measuring element, the heating element adopts a resistance wire and is embedded in the heat preservation part to form a hearth, one end of the hearth is open, and the other end of the hearth is closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110515020.2A CN112979152A (en) | 2021-05-12 | 2021-05-12 | Centrifugal rotary casting machine for manufacturing multi-component glass optical fiber perform |
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| CN202110515020.2A CN112979152A (en) | 2021-05-12 | 2021-05-12 | Centrifugal rotary casting machine for manufacturing multi-component glass optical fiber perform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114349319A (en) * | 2022-01-14 | 2022-04-15 | 深圳市汇诚装饰工程有限公司 | High-speed centrifugal cambered surface curtain wall glass pressing forming machine of flexible mould |
| CN115677206A (en) * | 2022-11-14 | 2023-02-03 | 中国计量大学 | Preparation device and preparation method of cladding sleeve for optical fiber preform |
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2021
- 2021-05-12 CN CN202110515020.2A patent/CN112979152A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114349319A (en) * | 2022-01-14 | 2022-04-15 | 深圳市汇诚装饰工程有限公司 | High-speed centrifugal cambered surface curtain wall glass pressing forming machine of flexible mould |
| CN114349319B (en) * | 2022-01-14 | 2024-01-30 | 深圳市汇诚装饰工程有限公司 | Flexible die high-speed centrifugal cambered surface curtain wall glass press forming machine |
| CN115677206A (en) * | 2022-11-14 | 2023-02-03 | 中国计量大学 | Preparation device and preparation method of cladding sleeve for optical fiber preform |
| CN115677206B (en) * | 2022-11-14 | 2024-02-02 | 中国计量大学 | Preparation device and preparation method of cladding sleeve for optical fiber preform |
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