CN113636746B - Fusion welding equipment for optical fiber perform - Google Patents
Fusion welding equipment for optical fiber perform Download PDFInfo
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- CN113636746B CN113636746B CN202110925413.0A CN202110925413A CN113636746B CN 113636746 B CN113636746 B CN 113636746B CN 202110925413 A CN202110925413 A CN 202110925413A CN 113636746 B CN113636746 B CN 113636746B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
- C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
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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
- C03B37/10—Non-chemical treatment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8803—Visual inspection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The application discloses fusion apparatus of optical fiber perform includes: a base; the spray lamp holder is arranged on the base, and a spray lamp is fixed on the spray lamp holder; the two moving seats are respectively arranged on the base and are respectively positioned at two sides of the spraying lamp holder, chucks are respectively arranged on the two moving seats, the two chucks are coaxially arranged, the two moving seats are respectively a first moving seat and a second moving seat, and the first moving seat is arranged on the base in a sliding manner; the first driving mechanism is used for driving the first moving seat to reciprocate; and the welding cooling testing mechanism is used for cooling the welding part and testing whether the welding is qualified or not. According to the method, the prefabricated rod body and the auxiliary rod are controlled to rotate during cooling through air cooling, so that uniform and rapid cooling can be ensured, and the cooling efficiency is improved; and the cooled auxiliary rod is applied with a force back to the preform body, whether welding is qualified or not is judged by observing whether cracks exist or not, and the detection mode is more reliable.
Description
The present application is a divisional application with the application number 2019106354638 and the name of "method for processing an optical fiber preform" on the application date 2019, month 07 and 15.
Technical Field
The invention relates to the field of prefabricated bars, in particular to a processing method of an optical fiber prefabricated bar.
Background
In the optical fiber manufacturing, flame grinding operation is required to be carried out on a preform body before a drawing process, an auxiliary rod is welded at two ends of the preform body respectively before flame grinding is carried out on the preform body, then two chucks respectively clamp the corresponding auxiliary rod, when the two chucks rotate at the same speed, the preform body and the auxiliary rod are driven to rotate, the preform is burnt at a high temperature through a movable blast lamp, the blast lamp uses hydrogen and oxygen as fuel, high temperature of about 2300 ℃ is generated during combustion, impurities and dust on the surface of the preform body can be removed, internal stress which is originally distributed unevenly in the preform body is released, fine cracks on the surface of the preform body heal, and fiber breakage in the drawing process is avoided. After flame grinding, one auxiliary rod needs to be fused before the wire drawing process, and the rest auxiliary rod is used for being matched with a clamp of wire drawing equipment to play a role of being clamped.
In the prior art, after the preform body is welded with the auxiliary rod, the cooling efficiency is low by natural cooling in the mode, in addition, in the existing manufacturing process, whether the welding is qualified or not is mainly observed by naked eyes, and the judging form is easy to be in error, if the judging is in error, the welding position of the unqualified preform can be broken in the conveying or wire drawing process, so that larger loss is caused.
Disclosure of Invention
The invention aims at the problems and overcomes at least one defect, and provides a processing method of an optical fiber preform.
The technical scheme adopted by the invention is as follows:
a processing method of an optical fiber preform rod comprises the following steps:
1) Performing flame welding operation on the preform body and the auxiliary rod, and controlling the preform body and the auxiliary rod to rotate during cooling by blowing and cooling after welding;
2) After cooling, maintaining the clamping state of the preform body, removing the chuck corresponding to the auxiliary rod, applying a force within a set range to the auxiliary rod, observing the welding position of the auxiliary rod and the preform body, if no crack exists, welding the preform body to be qualified, and if the crack exists at the welding position, failing to be welded.
The prefabricated rod body and the auxiliary rod are controlled to rotate during cooling through air cooling, so that uniform and rapid cooling can be ensured, and the cooling efficiency is improved; and the cooled auxiliary rod is applied with a force back to the preform body, whether welding is qualified or not is judged by observing whether cracks exist or not, and the detection mode is more reliable.
During practical use, welding operation can be performed again on unqualified preform bodies and auxiliary rods, or the preform bodies and the auxiliary rods can be moved into a buffer area first, and then unified processing is performed.
In practical use, the applied force can be 1.3 to 1.5 times of the weight of the preform body.
In one embodiment of the present invention, the flame welding operation of step 1) includes the steps of:
the auxiliary rod and the prefabricated rod body are respectively fixed on two chucks which are coaxially arranged, and the chucks are moved to enable the prefabricated rod body and the auxiliary rod to be close;
the two chucks are controlled to rotate at the same speed, and the end parts of the preform body and the auxiliary rod, which are close to each other, are heated by the blast lamp;
the ends of the preform body and the auxiliary rod are melted, the relative movement of the two chucks is controlled, and the two ends of the preform body and the auxiliary rod are mutually connected and melted into a whole.
In one embodiment of the present invention, an end of the auxiliary rod, which is far away from the preform body, has a waist-shaped hole, and the length direction of the waist-shaped hole is the same as the length direction of the auxiliary rod, and the steps 1) and 2) are performed by a welding apparatus, which includes:
a base;
the spray lamp holder is arranged on the base, and a spray lamp is fixed on the spray lamp holder;
the two moving seats are respectively arranged on the base and are respectively positioned at two sides of the spraying lamp holder, chucks are respectively arranged on the two moving seats, the two chucks are coaxially arranged, the two moving seats are respectively a first moving seat and a second moving seat, and the first moving seat is arranged on the base in a sliding manner;
the first driving mechanism is used for driving the first moving seat to reciprocate;
and the welding cooling testing mechanism is used for cooling the welding part and testing whether the welding is qualified or not.
In one embodiment of the present invention, the fusion cooling test mechanism includes:
the rack is arranged on one side of the base and can reciprocate along the length direction parallel to the base, and at least two anti-drop grooves which are arranged in parallel are arranged on the rack;
the cooling nozzle is arranged on the frame, one end of the cooling nozzle is connected with the air supply device, and the other end of the cooling nozzle is used for carrying out blowing cooling on the welding part;
the test seat is arranged on the rack in a sliding way through a sliding block matched with the anti-falling groove, and one side of the test seat facing the base is provided with a limit groove;
the pressure sensor is arranged on one side of the test seat;
the pushing element is arranged on the frame and comprises a telescopic pressurizing rod, the pressurizing rod is propped against the pressure sensor when extending out, and the pushing element is used for pushing the test seat to move relative to the frame;
the test rod is used for connecting the auxiliary rod and the test seat, and during the test, one end of the test rod penetrates through the waist-shaped hole and then stretches into the anti-drop groove, and the pressure of the pushing element on the test seat is transmitted to the auxiliary rod through the test rod.
In one embodiment of the invention, the device further comprises a temperature sensor mounted on the rack, wherein the temperature sensor is used for measuring the temperature of the welding part. The temperature sensor is arranged to facilitate the operation of the cooling nozzle, and the temperature can be quickly determined after the temperature is reduced to a set range.
The working principle of the welding equipment is as follows:
welding operation, namely installing an auxiliary rod on a chuck of a first movable seat, installing a preform body on a chuck of a second movable seat, and moving the chuck to enable the preform body and the auxiliary rod to be close; the two chucks are controlled to rotate at the same speed, and the end parts of the preform body and the auxiliary rod, which are close to each other, are heated by the blast lamp; the ends of the preform body and the auxiliary rod are melted, the relative movement of the two chucks is controlled, and the two ends of the preform body and the auxiliary rod are mutually connected and melted into a whole.
And (3) cooling operation, namely moving the frame, enabling the cooling nozzle to be aligned with the welding part, and controlling the preform body and the auxiliary rod to rotate during cooling through blowing cooling.
Detecting operation, namely loosening a chuck corresponding to the auxiliary rod, controlling the first movable seat to move to one side far away from the second movable seat, moving the frame, enabling the limiting groove of the test seat to be approximately aligned with the waist-shaped hole of the auxiliary rod, controlling the prefabricated rod body and the auxiliary rod to rotate, enabling the waist-shaped hole to be aligned with the limiting groove, enabling the test rod to pass through the waist-shaped hole, and enabling one end of the test rod to be inserted into the limiting groove; controlling the pushing element to work, applying an acting force to the pressure sensor by the pressure applying rod, and pushing the test seat to move to one side far away from the preform body until the data of the pressure sensor reaches a set value; and observing the welding part of the auxiliary rod and the prefabricated rod body, if no crack exists, welding the auxiliary rod to be qualified, and if the crack exists at the welding part, not welding the auxiliary rod to be qualified.
In an embodiment of the invention, the air supply device is an air pump.
In one embodiment of the present invention, the bottom wall of the limiting groove is circular arc, and the axis corresponding to the bottom wall of the limiting groove coincides with the axis of the chuck.
This kind of structure makes when the installation test rod, and auxiliary rod suitable position area is wider, and waist type hole and spacing groove are general align can, the structure in cooperation waist type hole can make things convenient for quick operation, reduces the degree of difficulty of installation test rod.
In one embodiment of the present invention, the limiting groove is provided with a first magnetic member, and the end portion of the test rod is provided with a second magnetic member magnetically attracted to the first magnetic member.
The form of magnetism actuation can prevent effectively that the test rod from dropping from the spacing groove. In practical use, the width of the limit groove is preferably equal to or slightly larger than the outer diameter of the test rod.
In an embodiment of the invention, the pushing element is an electric push rod or a hydraulic cylinder.
In one embodiment of the present invention, the frame is slidably disposed on the base, the torch base is slidably disposed on the base, the welding cooling testing mechanism further includes a second driving mechanism and a third driving mechanism, the second driving mechanism is used for driving the frame to reciprocate, and the third driving mechanism is used for driving the torch base to reciprocate.
In practical application, the first driving mechanism, the second driving mechanism and the third driving mechanism can adopt the existing driving structure, for example, a rack and pinion, a ball screw pair, an air cylinder or a hydraulic cylinder and the like can be adopted.
In one embodiment of the present invention, the anti-disengagement slot is trapezoidal, T-shaped or dovetail-shaped, and the shape of the slider is adapted to the anti-disengagement slot.
The beneficial effects of the invention are as follows: the prefabricated rod body and the auxiliary rod are controlled to rotate during cooling through air cooling, so that uniform and rapid cooling can be ensured, and the cooling efficiency is improved; and the cooled auxiliary rod is applied with a force back to the preform body, whether welding is qualified or not is judged by observing whether cracks exist or not, and the detection mode is more reliable.
Description of the drawings:
FIG. 1 is a schematic illustration of a fusion operation of a fusion apparatus;
FIG. 2 is a schematic illustration of a cooling operation of the fusion apparatus;
FIG. 3 is a schematic illustration of a welding apparatus detection operation;
FIG. 4 is a schematic diagram of a fusion cooling test mechanism.
The reference numerals in the drawings are as follows:
1. a preform body; 2. an auxiliary rod; 3. a waist-shaped hole; 4. a base; 5. a spray lamp holder; 6. a torch; 7. a first movable seat; 8. a second movable seat; 9. welding and cooling test mechanism; 10. a frame; 11. an anti-drop groove; 12. cooling the nozzle; 13. a test seat; 14. a slide block; 15. a limit groove; 16. a pressure sensor; 17. a pushing element; 18. a pressing rod; 19. test bar.
The specific embodiment is as follows:
the present invention will be described in detail with reference to the accompanying drawings.
A processing method of an optical fiber preform rod comprises the following steps:
1) Performing flame welding operation on the preform body and the auxiliary rod, and controlling the preform body and the auxiliary rod to rotate during cooling by blowing and cooling after welding;
2) After cooling, maintaining the clamping state of the preform body, removing the chuck corresponding to the auxiliary rod, applying a force within a set range to the auxiliary rod, observing the welding position of the auxiliary rod and the preform body, if no crack exists, welding the preform body to be qualified, and if the crack exists at the welding position, failing to be welded.
The prefabricated rod body and the auxiliary rod are controlled to rotate during cooling through air cooling, so that uniform and rapid cooling can be ensured, and the cooling efficiency is improved; and the cooled auxiliary rod is applied with a force back to the preform body, whether welding is qualified or not is judged by observing whether cracks exist or not, and the detection mode is more reliable.
During practical use, welding operation can be performed again on unqualified preform bodies and auxiliary rods, or the preform bodies and the auxiliary rods can be moved into a buffer area first, and then unified processing is performed.
In practical use, the applied force may be 1.3 to 1.5 times the weight of the preform body 1.
In this embodiment, the flame welding operation of step 1) includes the steps of:
the auxiliary rod and the prefabricated rod body are respectively fixed on two chucks which are coaxially arranged, and the chucks are moved to enable the prefabricated rod body and the auxiliary rod to be close;
the two chucks are controlled to rotate at the same speed, and the end parts of the preform body and the auxiliary rod, which are close to each other, are heated by the blast lamp;
the ends of the preform body and the auxiliary rod are melted, the relative movement of the two chucks is controlled, and the two ends of the preform body and the auxiliary rod are mutually connected and melted into a whole.
As shown in fig. 1 to 4, in the present embodiment, the end of the auxiliary rod 2 remote from the preform body 1 has a waist-shaped hole 3, the length direction of the waist-shaped hole 3 is the same as the length direction of the auxiliary rod 2, and steps 1) and 2) are operated by a welding apparatus including:
a base 4;
the spray lamp holder 5 is arranged on the base 4, and a spray lamp 6 is fixed on the spray lamp holder 5;
two moving seats which are arranged on the base 4 and are respectively positioned at two sides of the spraying lamp holder 5, chucks (not shown in the figure) are respectively arranged on the two moving seats, the two chucks are coaxially arranged, the two moving seats are respectively a first moving seat 7 and a second moving seat 8, and the first moving seat 7 is arranged on the base 4 in a sliding manner;
a first driving mechanism for driving the first moving seat 7 to reciprocate;
and the welding cooling testing mechanism 9 is used for cooling the welding part and testing whether the welding is qualified or not.
As shown in fig. 1 and 4, in the present embodiment, the fusion cooling test mechanism 9 includes:
the rack 10 is arranged on one side of the base 4 and can reciprocate along the length direction parallel to the base 4, and at least two anti-falling grooves 11 which are arranged in parallel are arranged on the rack 10;
a cooling nozzle 12 mounted on the frame 10, one end of which is connected with the air supply device and the other end of which is used for performing air blast cooling on the welding part;
the test seat 13 is arranged on the frame 10 in a sliding way through a sliding block 14 matched with the anti-falling groove 11, and a limit groove 15 is formed in one side of the test seat 13 facing the base 4;
a pressure sensor 16 mounted on one side of the test seat 13;
the pushing element 17 is arranged on the frame 10 and comprises a telescopic pressing rod 18, the pressing rod 18 abuts against the pressure sensor 16 when extending out, and the pushing element 17 is used for pushing the test seat 13 to move relative to the frame 10;
the test rod 19 is used for connecting the auxiliary rod 2 and the test seat 13, and when in test, one end of the test rod 19 penetrates through the waist-shaped hole 3 and then stretches into the anti-drop groove 11, and the pressure of the pushing element 17 to the test seat 13 is transmitted to the auxiliary rod 2 through the test rod 19.
In this embodiment, a temperature sensor is further included that is mounted on the frame 10 and is used to measure the temperature of the weld. The provision of a temperature sensor facilitates the operation of the cooling nozzle 12 and can be quickly determined when the temperature falls within a set range.
The working principle of the welding equipment is as follows:
welding operation-see fig. 1, mounting the auxiliary rod 2 on the chuck of the first movable seat 7, mounting the preform body 1 on the chuck of the second movable seat 8, and moving the chucks to bring the preform body 1 and the auxiliary rod 2 together; the two chucks are controlled to rotate at the same speed, and the end parts of the preform body 1 and the auxiliary rod 2, which are close to each other, are heated by the blast lamp 6; the ends of the preform body 1 and the auxiliary rod 2 are melted, the relative movement of the two chucks is controlled, and the two ends of the preform body 1 and the auxiliary rod 2 are mutually connected and melted into a whole.
Cooling operation-see fig. 2, the frame 10 is moved so that the cooling nozzle 12 is aligned with the welded portion, and the preform body 1 and the auxiliary rod 2 are controlled to rotate during cooling by blowing.
The detection operation, see fig. 3, is that the corresponding chuck of the auxiliary rod 2 is loosened, the first movable seat 7 is controlled to move to the side far away from the second movable seat 8, the frame 10 is moved, the limit groove 15 of the test seat 13 is approximately aligned with the waist-shaped hole 3 of the auxiliary rod 2, the prefabricated rod body 1 and the auxiliary rod 2 are controlled to rotate, the waist-shaped hole 3 is aligned with the limit groove 15, the test rod 19 passes through the waist-shaped hole 3, and one end of the test rod 19 is inserted into the limit groove 15; the pushing element 17 is controlled to work, the pressing rod 18 applies acting force to the pressure sensor 16 to push the test seat 13 to move to the side far away from the preform body 1 until the data of the pressure sensor 16 reaches a set value; and observing the welding part of the auxiliary rod 2 and the prefabricated rod body 1, if no crack exists, welding the auxiliary rod to be qualified, and if the crack exists at the welding part, not welding the auxiliary rod to be qualified.
In this embodiment, the air supply device is an air pump.
In this embodiment, the bottom wall of the limiting groove 15 is circular arc, and the axis corresponding to the bottom wall of the limiting groove 15 coincides with the axis of the chuck. This kind of structure makes when installing the test rod 19, and auxiliary rod 2 suitable position area is wider, and waist type hole 3 and spacing groove 15 general alignment can, the structure of cooperation waist type hole 3 can make things convenient for quick operation, reduces the degree of difficulty of installation test rod 19.
In actual use, the limiting groove 15 is provided with a first magnetic piece, and the end part of the test rod 19 is provided with a second magnetic piece which is magnetically attracted with the first magnetic piece. The magnetic attraction mode can effectively prevent the test rod 19 from falling from the limit groove 15. In practical use, the width of the limiting groove 15 is preferably equal to or slightly larger than the outer diameter of the test rod 19.
In the present embodiment, the pushing element 17 is an electric push rod or a hydraulic cylinder.
In this embodiment, the frame 10 is slidably disposed on the base 4, the burner holder 5 is slidably disposed on the base 4, the welding cooling testing mechanism 9 further includes a second driving mechanism and a third driving mechanism, the second driving mechanism is used for driving the frame 10 to reciprocate, and the third driving mechanism is used for driving the burner holder 5 to reciprocate. In practical application, the first driving mechanism, the second driving mechanism and the third driving mechanism can adopt the existing driving structure, for example, a rack and pinion, a ball screw pair, an air cylinder or a hydraulic cylinder and the like can be adopted.
In practical use, the anti-falling groove 11 is trapezoid, T-shaped or dovetail-shaped, and the shape of the sliding block 14 is matched with the anti-falling groove 11.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover all equivalent structures as modifications within the scope of the invention, either directly or indirectly, as may be contemplated by the present invention.
Claims (7)
1. A fusion apparatus for an optical fiber preform, comprising:
a base;
the spray lamp holder is arranged on the base, and a spray lamp is fixed on the spray lamp holder;
the two moving seats are respectively arranged on the base and are respectively positioned at two sides of the spraying lamp holder, chucks are respectively arranged on the two moving seats, the two chucks are coaxially arranged, the two moving seats are respectively a first moving seat and a second moving seat, and the first moving seat is arranged on the base in a sliding manner;
the first driving mechanism is used for driving the first moving seat to reciprocate;
the welding cooling testing mechanism is used for cooling the welding part and testing whether the welding is qualified or not;
the welding cooling testing mechanism comprises:
the rack is arranged on one side of the base and can reciprocate along the length direction parallel to the base, and at least two anti-drop grooves which are arranged in parallel are arranged on the rack;
the cooling nozzle is arranged on the frame, one end of the cooling nozzle is connected with the air supply device, and the other end of the cooling nozzle is used for carrying out blowing cooling on the welding part;
the test seat is arranged on the rack in a sliding way through a sliding block matched with the anti-falling groove, and one side of the test seat facing the base is provided with a limit groove;
the pressure sensor is arranged on one side of the test seat;
the pushing element is arranged on the frame and comprises a telescopic pressurizing rod, the pressurizing rod is propped against the pressure sensor when extending out, and the pushing element is used for pushing the test seat to move relative to the frame;
the test rod is used for connecting auxiliary rod and test seat, the one end that the prefabricated stick body was kept away from to the auxiliary rod has waist type hole, and the length direction in waist type hole is the same with the length direction of auxiliary rod, and during the test, the one end of test rod passes stretch into behind the waist type hole anticreep groove, the pushing element passes through the test rod to the pressure of test seat and gives the auxiliary rod.
2. The fusion apparatus of an optical fiber preform according to claim 1, wherein the air supply means is an air pump.
3. The fusion apparatus of an optical fiber preform according to claim 1, wherein the bottom wall of the limiting groove is circular arc-shaped, and an axis corresponding to the bottom wall of the limiting groove coincides with the axis of the chuck.
4. The fusion apparatus of an optical fiber preform according to claim 3, wherein the limiting groove is provided with a first magnetic member, and the end of the test rod is provided with a second magnetic member magnetically attracted to the first magnetic member.
5. The fusion apparatus of an optical fiber preform according to claim 1, wherein the pushing member is an electric push rod or a hydraulic cylinder.
6. The fusion apparatus of an optical fiber preform according to claim 1, wherein the frame is slidably disposed on the base, the torch holder is slidably disposed on the base, and the fusion cooling test mechanism further comprises a second driving mechanism for driving the frame to reciprocate and a third driving mechanism for driving the torch holder to reciprocate.
7. The fusion apparatus of an optical fiber preform according to claim 1, wherein the drop-preventing groove is trapezoidal, T-shaped or dovetail-shaped, and the slider has a shape adapted to the drop-preventing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110925413.0A CN113636746B (en) | 2019-07-15 | 2019-07-15 | Fusion welding equipment for optical fiber perform |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635463.8A CN110372187B (en) | 2019-07-15 | 2019-07-15 | Method for processing optical fiber preform |
| CN202110925413.0A CN113636746B (en) | 2019-07-15 | 2019-07-15 | Fusion welding equipment for optical fiber perform |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910635463.8A Division CN110372187B (en) | 2019-07-15 | 2019-07-15 | Method for processing optical fiber preform |
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| Publication Number | Publication Date |
|---|---|
| CN113636746A CN113636746A (en) | 2021-11-12 |
| CN113636746B true CN113636746B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110925413.0A Active CN113636746B (en) | 2019-07-15 | 2019-07-15 | Fusion welding equipment for optical fiber perform |
| CN201910635463.8A Active CN110372187B (en) | 2019-07-15 | 2019-07-15 | Method for processing optical fiber preform |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910635463.8A Active CN110372187B (en) | 2019-07-15 | 2019-07-15 | Method for processing optical fiber preform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163120B (en) * | 2021-12-10 | 2024-05-17 | 华能(泰安)光电科技有限公司 | Cooling device for optical fiber preform |
| CN114455826B (en) * | 2022-01-07 | 2023-05-26 | 富通集团有限公司 | Processing technology of preform and optical fiber |
| CN114965007B (en) * | 2022-07-31 | 2023-01-03 | 西北工业大学 | Crack tip plastic zone monitoring device and method |
| CN115403262B (en) * | 2022-08-30 | 2023-06-13 | 富通集团有限公司 | Method and equipment for processing preform |
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| JP2005145796A (en) * | 2003-11-19 | 2005-06-09 | Shin Etsu Chem Co Ltd | Optical fiber preform and method and apparatus for splicing the same |
| KR20080112895A (en) * | 2007-06-22 | 2008-12-26 | 일신테크(주) | Portable Fiber Optic Fusion Splicer |
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2019
- 2019-07-15 CN CN202110925413.0A patent/CN113636746B/en active Active
- 2019-07-15 CN CN201910635463.8A patent/CN110372187B/en active Active
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| Publication number | Publication date |
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| CN113636746A (en) | 2021-11-12 |
| CN110372187B (en) | 2021-09-21 |
| CN110372187A (en) | 2019-10-25 |
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