CN115947537A - Surface treatment device and surface treatment method for quartz core rod - Google Patents
Surface treatment device and surface treatment method for quartz core rod Download PDFInfo
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- CN115947537A CN115947537A CN202211681632.XA CN202211681632A CN115947537A CN 115947537 A CN115947537 A CN 115947537A CN 202211681632 A CN202211681632 A CN 202211681632A CN 115947537 A CN115947537 A CN 115947537A
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- 239000010453 quartz Substances 0.000 title claims abstract description 58
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000004381 surface treatment Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 61
- 230000008569 process Effects 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002253 acid Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000005554 pickling Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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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- Glass Melting And Manufacturing (AREA)
Abstract
The invention discloses a surface treatment device and a surface treatment method of a quartz core rod, which relate to the technical field of optical fiber manufacturing and comprise the following steps: the heating cabinet assembly is internally provided with a cavity, the cavity is used for accommodating at least one quartz core rod, and the heating cabinet assembly is provided with a temperature control unit; a gas delivery unit connected to the heating cabinet assembly; and the control unit is in signal connection with the gas transmission unit and the temperature control unit, and is used for driving the gas transmission unit to transmit high-flow-rate gas into the heating cabinet assembly and adjusting the temperature in the cavity through the temperature control unit. The temperature control unit is provided to enable the surface treatment device to eliminate stress in a heat treatment mode, so that the situation that the quartz core rod is thinned due to acid cleaning is avoided.
Description
Technical Field
The invention relates to the technical field of optical fiber perform manufacturing, in particular to a surface treatment device and a surface treatment method for a quartz core rod.
Background
The OVD manufacturing process of the optical fiber preform rod comprises the steps of firstly depositing an opaque powder rod on a rotatable quartz core rod in a deposition chamber, and sintering the opaque powder rod into a transparent optical fiber preform rod through a high-temperature heating furnace. Before deposition, special surface treatment is needed to be carried out on the quartz core rod, so that foreign matters, moisture, defects and the like on the surface of the quartz core rod are eliminated, and residual stress in the quartz core rod is eliminated. The quartz core rod after surface treatment is deposited again, so that the quality of the sintered optical fiber preform can be ensured, the key indexes such as appearance and optical characteristics such as attenuation and macrobend resistance are particularly excellent, and the strength of subsequent optical fiber drawing is also improved.
The surface treatment of the preform is generally performed by polishing the preform using oxyhydrogen flame or an electric furnace to remove stress, and then removing foreign materials on the surface by acid washing. However, in the actual process, the quartz core rod needs to be clamped on a rotatable chuck, then the quartz core rod is polished by using oxyhydrogen flame or an electric heating furnace, the quartz core rod is cooled and then placed into an acid liquid tank to be soaked for a certain time, then the quartz core rod is taken out, and the quartz core rod can be subsequently deposited after being wiped clean. However, the above process takes a long time and is difficult to realize in a batch process. And the pickling process has safety risk, and can cause the outer diameter of the preformed rod to be thinned under the influence of pickling liquid after the preformed rod is pickled, so that the subsequent procedures are influenced. And equipment in the related art needs to carry out surface treatment on the prefabricated rod one by one, and the processing efficiency is low and the requirements of a production line are difficult to meet.
Disclosure of Invention
To the problem that in the correlation technique, the efficiency is lower to quartz core rod surface treatment process, and easily leads to quartz core rod external diameter to attenuate thereby influence the subsequent handling, the application provides a surface treatment device of quartz core rod, and it includes:
the heating cabinet assembly is internally provided with a cavity, the cavity is used for accommodating at least one quartz core rod, and the heating cabinet assembly is provided with a temperature control unit;
a gas delivery unit connected to the heating cabinet assembly;
and the control unit is in signal connection with the gas transmission unit and the temperature control unit, and is used for driving the gas transmission unit to transmit high-flow-rate gas into the heating cabinet assembly and adjusting the temperature in the cavity through the temperature control unit.
In some embodiments, the gas transfer unit comprises:
the adjusting fan is connected with the air inlet end of the heating cabinet assembly and is in signal connection with the control unit;
the air storage tank is communicated with the adjusting fan;
and the air outlet pump is assembled at the air outlet end of the heating cabinet assembly, is used for controlling the air outlet flow of the air outlet end, and is in signal connection with the control unit.
In some embodiments, the air outlet end of the heating cabinet assembly is provided with a pressure measurement unit, and the pressure measurement unit is in signal connection with the control unit.
In some embodiments, the gas reservoir stores argon gas.
In some embodiments, the temperature control unit comprises:
a thermometer assembled to the heating cabinet assembly, the thermometer being adapted to measure a temperature within the cavity;
the heaters are attached to the heating cabinet assembly, and each heater is in signal connection with the control unit.
In some embodiments, a plurality of hanging brackets are arranged in the cavity of the heating cabinet assembly, and the hanging brackets are used for hanging the quartz core rods.
In another aspect, the present application provides a surface treatment method for a quartz core rod of the surface treatment apparatus, including the steps of:
conveying a plurality of quartz core rods into a cavity of the heating cabinet assembly, and controlling the temperature control unit through the control unit to keep the temperature in the cavity at a first preset temperature;
driving the temperature control unit to increase the temperature in the cavity to a second preset temperature by using the control unit, and simultaneously conveying high-flow-rate gas into the cavity through the gas conveying unit;
driving the temperature control unit to reduce the temperature in the cavity to a first preset temperature by using the control unit, and simultaneously keeping the gas conveying unit conveying high-flow-rate gas into the cavity;
and carrying out the quartz core rod out of the heating cabinet assembly.
In some embodiments, the delivering a high flow rate of gas into the cavity by the gas delivery unit during the raising of the temperature in the cavity to the second predetermined temperature includes:
when the temperature in the cavity is at the third preset temperature and when the temperature is between the second preset temperature, the air pressure environment in the cavity is adjusted through the adjusting fan and the air outlet pump of the air transmission unit, so that the air pressure environment in the cavity is circularly converted between high negative pressure and positive pressure.
In some embodiments, the delivering a high flow rate of gas into the cavity by the gas delivery unit during the process of decreasing the temperature in the cavity from the second preset temperature to the first preset temperature includes:
when the temperature in the cavity is in the third preset temperature with when the second preset temperature, through adjust the fan with the pump adjustment of giving vent to anger the atmospheric pressure environment in the cavity, so that atmospheric pressure environment in the cavity is at the circulation conversion between high negative pressure and malleation.
In some embodiments, the first predetermined temperature is 100 ℃, the second predetermined temperature is between 1050 and 1150 ℃, and the third predetermined temperature is 300 ℃.
Compared with the prior art, the surface treatment device for the optical fiber perform rod, disclosed by the invention, has the advantages that the closed cavity is arranged, so that the foreign matters on the surfaces of the quartz core rods in batches can be cleaned by high-speed gas, and the efficiency of the surface treatment process is greatly improved. Further, the applicant finds that the thermal stress generated by different heating of the inner part and the outer part of the quartz core rod in the manufacturing process directly influences the mechanical property and the mechanical property of the subsequent processing of the product. Therefore, the present application provides a temperature control unit to allow the surface treatment apparatus to relieve stress using a heat treatment, thereby preventing the quartz core rod from being thinned due to pickling.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a surface treatment apparatus according to an embodiment of the present invention.
In the figure: 1. a heating cabinet assembly; 11. a cavity; 12. a temperature control unit; 121. a thermometer; 122. a heater; 13. an air inlet end; 14. an air outlet end; 15. a suspension bracket; 2. a quartz core rod; 3. a gas delivery unit; 31. adjusting the fan; 32. discharging the air pump; 33. a pressure measurement unit; 4. a control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings. Aiming at the problems that in the related art, the efficiency of the surface treatment process of the quartz core rod is low, and the outer diameter of the quartz core rod is easy to be thinned so as to influence the subsequent procedures, the application provides a surface treatment device of the quartz core rod, which comprises: the heating cabinet assembly 1, the gas transmission unit 3 and the control unit 4; wherein the content of the first and second substances,
the heating cabinet comprises a heating cabinet component 1, a cavity 11 is arranged in the heating cabinet component 1, the cavity 11 is used for accommodating at least one quartz core rod 2, and a temperature control unit 12 is arranged on the heating cabinet component 1; a gas delivery unit 3 connected to the heating cabinet assembly 1; and the control unit 4 is in signal connection with both the gas transmission unit 3 and the temperature control unit 12, and the control unit 4 is used for driving the gas transmission unit 3 to transmit high-flow-rate gas into the heating cabinet assembly 1 and/or adjusting the temperature in the cavity 11 through the temperature control unit 12.
It can be understood that the surface treatment device of the quartz core rod can eliminate foreign matters, moisture and residual gaseous substances such as Cl ions and OH ions on the near surface inside the quartz core rod 2 by adopting high-flow-rate gas. And the temperature of the cavity 11 is controlled to achieve the purpose of heat treatment to eliminate the stress of the quartz core rod 2.
It should be noted that the heating cabinet assembly 1 of the present application provides a closed cavity 11, and a plurality of quartz core rods 2 can be accommodated in the cavity 11. Meanwhile, a high negative pressure-low negative pressure cyclic change air pressure environment is formed in the cavity 11 by the air transmission unit 3 to form high-speed air flow. At the same time, the temperature control unit 12 adjusts the temperature of the cavity 11 to heat-treat or anneal the plurality of quartz core rods 2 inside the cavity 11. Thereby realizing a batch surface treatment of the quartz core rods 2.
Specifically, in order to better form a high-speed airflow in the cavity 11, the gas transmission unit 3 in the present application includes: a regulating fan 31, an air storage tank and an air outlet pump 32; wherein the content of the first and second substances,
the adjusting fan 31 is connected with the air inlet end 13 of the heating cabinet assembly 1, and the adjusting fan 31 is in signal connection with the control unit 4; an air tank communicating with the adjusting fan 31; and the air outlet pump 32 is assembled at the air outlet end 14 of the heating cabinet assembly 1, the air outlet pump 32 is used for controlling the air outlet flow of the air outlet end 14, and the air outlet pump 32 is in signal connection with the control unit 4. Further, the air outlet end 14 of the heating cabinet assembly 1 is provided with a pressure measuring unit 33, and the pressure measuring unit 33 is in signal connection with the control unit 4.
In this way, the operator can adjust the air pressure environment in the cavity 11 by adjusting the air flow of the blower 31. The air outlet flow of the air outlet end 14 can also be adjusted by the opening degree of the air outlet pump 32 on the air outlet end 14 of the heating cabinet assembly 1 to cooperate with the adjusting fan 31 to adjust the air pressure environment in the cavity 11.
Preferably, the gas storage tank stores argon gas. I.e. argon is used as the high-velocity purge gas in this application. Of course, helium may also be used as the purge gas. However, the purge gas in the present application requires frequent high-pressure-negative pressure changes in the enclosed space, and the fluidity of helium is difficult to control, so that argon is used as the purge gas in the present application.
Specifically, the temperature control unit 12 includes: a thermometer 121 and at least one heater 122; wherein the content of the first and second substances,
a thermometer 121 assembled to the heating cabinet assembly 1, the thermometer 121 being configured to measure a temperature in the cavity 11; the heater 122 is attached to the heating cabinet assembly 1, and each heater 122 is in signal connection with the control unit 4.
In order to improve the processing efficiency, a plurality of hanging brackets 15 are arranged in the cavity 11 of the heating cabinet assembly 1, and the hanging brackets 15 are used for hanging the quartz core rod 2. In this way, a plurality of quartz core rods 2 can be stored in the cavity 11, so that the operator can handle a plurality of quartz core rods 2 at one time.
In another aspect, the present application provides a surface treatment method of a quartz core rod using the surface treatment apparatus, including the steps of:
s1, conveying a plurality of quartz core rods 2 into a cavity 11 of the heating cabinet assembly 1, and controlling the temperature control unit 12 through the control unit 4 to keep the temperature in the cavity 11 at a first preset temperature.
It will be appreciated that the first predetermined temperature is typically maintained at 100 ℃. In particular, the heating cabinet is at a temperature of 100 ℃ when standby. Before the operation is started, firstly, the quartz core rod 2 is conveyed into the cavity 11 of the heating cabinet assembly 1, the quartz core rod 2 is installed on a suspension bracket 15 in the cavity 11 through a hole auxiliary rod, a small amount of purified gas Ar gas is supplied by a regulating fan 31 through an air inlet end 13, and the purified gas Ar gas is discharged from an air outlet end 14. The valve of the air outlet pump 32 at the air outlet end 14 is in a 20% opening state.
S2, the temperature control unit 12 is driven by the control unit 4 to raise the temperature in the cavity 11 to a second preset temperature, and meanwhile, high-flow-rate gas is conveyed into the cavity 11 through the gas conveying unit 3.
In some preferred embodiments, the first preset temperature is 100 ℃, the second preset temperature is 1050 to 1150 ℃, and the third preset temperature is 300 ℃.
Specifically, the temperature control unit 12 starts to increase the temperature to the second preset temperature for a certain time. When the temperature in the cavity 11 is between the third preset temperature and the second preset temperature, the air pressure environment in the cavity 11 is adjusted by the adjusting fan 31 and the air outlet pump 32, so that the air pressure environment in the cavity 11 is circularly switched between high negative pressure and positive pressure.
Further, in the process that the temperature in the cavity 11 is increased to the second preset temperature, when the temperature starts to reach the third preset temperature, the gas supply amount of the gas transmission unit 3 is increased by 300%, the gas outlet pump 32 of the gas outlet end 14 is kept in a 100% opening state, the pressure measurement unit 33 of the gas outlet end 14 displays-0.30 kPa, a high negative pressure environment in the cavity 11 is formed, and the purified gas Ar flows from the surface of the quartz core rod 2 at a high speed. After the above state lasts for 5min, the air outlet pump 32 of the air outlet end 14 keeps a 50% on state, and then the above actions are repeated. Alternatively, the outlet pump 32 may employ a vacuum pump.
And S3, driving the temperature control unit 12 to reduce the temperature in the cavity 11 to a first preset temperature by using the control unit 4, and simultaneously keeping the gas transmission unit 3 to transmit high-flow-rate gas into the cavity 11.
Similarly, the temperature in the cavity 11 is by the second is preset the temperature and is dropped to in the first temperature process of predetermineeing, when the temperature in the cavity 11 is in the third is preset the temperature with when the second is preset between the temperature, through adjusting fan 31 with go out the adjustment of air pump 32 the atmospheric pressure environment in the cavity 11, so that the atmospheric pressure environment in the cavity 11 is at the high negative pressure-malleation cycle conversion to the high negative pressure again.
In a preferred embodiment, the temperature of the heater 122 of the temperature control unit 12 is gradually decreased to 100 ℃ after reaching the stable temperature of 1050-1150 ℃ for a certain time. Before the temperature reaches 300 ℃, the above actions are also carried out all the time, and the cyclic change of high negative pressure-positive pressure-high negative pressure in the cavity 11 is realized. After the temperature of the heater 122 is reduced to 300 ℃, the air supply amount in the cavity 11 is reduced to the standby flow rate, the air pump 32 at the air outlet end 14 returns to the 20% opening state, and the pressure measuring unit 33 at the air outlet end 14 displays 0.10kPa.
And S4, moving the quartz core rod 2 out of the heating cabinet assembly 1.
Specifically, the heater 122 continues to cool the cavity 11 to the standby 100 ℃. And conveying the quartz core rod 2, cooling to room temperature and carrying out subsequent OVD deposition.
In conclusion, the surface treatment device for the optical fiber perform rod is provided with the closed cavity, so that foreign matters on the surfaces of a batch of quartz core rods can be cleaned by high-speed gas, and the efficiency of the surface treatment process is greatly improved. Further, the applicant finds that the thermal stress generated by different heating of the inner part and the outer part of the quartz core rod in the manufacturing process directly influences the mechanical property and the mechanical property of the subsequent processing of the product. Therefore, the present application provides a temperature control unit to allow the surface treatment apparatus to relieve stress using a heat treatment, thereby preventing the quartz core rod from being thinned due to pickling.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A surface treatment apparatus for a quartz core rod, comprising:
the quartz core rod heating device comprises a heating cabinet assembly (1), wherein a cavity (11) is formed in the heating cabinet assembly (1), the cavity (11) is used for accommodating at least one quartz core rod (2), and a temperature control unit (12) is arranged on the heating cabinet assembly (1);
a gas delivery unit (3) connected to the heating cabinet assembly (1);
and the control unit (4) is in signal connection with the gas transmission unit (3) and the temperature control unit (12), and the control unit (4) is used for driving the gas transmission unit (3) to transmit high-flow-rate gas into the heating cabinet assembly (1) and adjusting the temperature in the cavity (11) through the temperature control unit (12).
2. A surface treatment device according to claim 1, characterized in that the gas delivery unit (3) comprises:
the adjusting fan (31) is connected with the air inlet end (13) of the heating cabinet assembly (1), and the adjusting fan (31) is in signal connection with the control unit (4);
a gas tank communicating with the conditioning fan (31);
the air outlet pump (32) is assembled at the air outlet end (14) of the heating cabinet assembly (1), the air outlet pump (32) is used for controlling the air outlet flow of the air outlet end (14), and the air outlet pump (32) is in signal connection with the control unit (4).
3. A surface treatment device according to claim 2, characterized in that the outlet end (14) of the heating cabinet assembly (1) is provided with a pressure measuring unit (33), and the pressure measuring unit (33) is in signal connection with the control unit (4).
4. The surface treatment apparatus according to claim 2, wherein the gas tank stores therein argon gas.
5. A surface treatment device according to claim 1, characterized in that the temperature control unit (12) comprises:
a thermometer (121) assembled to the heating cabinet assembly (1), the thermometer (121) being configured to measure a temperature within the cavity (11);
the heater (122) is attached to the heating cabinet assembly (1), and each heater (122) is in signal connection with the control unit (4).
6. A surface treatment device according to claim 1, characterized in that a plurality of suspension brackets (15) are arranged in the cavity (11) of the heating cabinet assembly (1), and the suspension brackets (15) are used for suspending the quartz core rod (2).
7. A surface treatment method of a quartz core rod using the surface treatment apparatus according to claim 1, characterized by comprising the steps of:
-conveying a plurality of quartz core rods (2) into a cavity (11) of the heating cabinet assembly (1) and controlling the temperature control unit (12) by means of the control unit (4) to maintain the temperature inside the cavity (11) at a first preset temperature;
driving the temperature control unit (12) to raise the temperature in the cavity (11) to a second preset temperature by using the control unit (4), and simultaneously conveying high-flow-rate gas into the cavity (11) through the gas conveying unit (3);
driving the temperature control unit (12) to reduce the temperature in the cavity (11) to a first preset temperature by using the control unit (4), and simultaneously keeping the gas transmission unit (3) to transmit high-flow-rate gas into the cavity (11);
and carrying the quartz core rod (2) out of the heating cabinet assembly (1).
8. A surface treatment method according to claim 7, wherein said delivering a high flow rate of gas into said cavity (11) by said gas delivery unit (3) during said raising of the temperature in said cavity (11) to said second predetermined temperature comprises:
when the temperature in the cavity (11) is at the third preset temperature and between the second preset temperature, the air pressure environment in the cavity (11) is adjusted through the adjusting fan (31) and the air outlet pump (32) of the air transmission unit (3), so that the air pressure environment in the cavity (11) is circularly converted between high negative pressure and positive pressure.
9. A surface treatment method according to claim 8, wherein said delivering a high flow rate of gas into said cavity (11) by said gas delivery unit (3) during a period of time in which the temperature in said cavity (11) decreases from said second predetermined temperature to said first predetermined temperature comprises:
when the temperature in cavity (11) is in the third preset temperature with when the second preset temperature between, through adjust fan (31) with air-out pump (32) adjustment the atmospheric pressure environment in cavity (11) so that atmospheric pressure environment in cavity (11) cycle conversion between high negative pressure and malleation.
10. A surface treatment process according to claim 9, characterized in that said first preset temperature is 100 ℃, said second preset temperature is between 1050 and 1150 ℃ and said third preset temperature is 300 ℃.
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| CN202211681632.XA CN115947537A (en) | 2022-12-24 | 2022-12-24 | Surface treatment device and surface treatment method for quartz core rod |
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| CN202211681632.XA CN115947537A (en) | 2022-12-24 | 2022-12-24 | Surface treatment device and surface treatment method for quartz core rod |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05294661A (en) * | 1992-04-17 | 1993-11-09 | Nippon Telegr & Teleph Corp <Ntt> | Furnace for drawing fluoride optical fiber |
| KR20050032396A (en) * | 2003-10-01 | 2005-04-07 | 엘에스전선 주식회사 | Method of and apparatus for overcladding a optical preform rod |
| JP2005154264A (en) * | 2003-10-30 | 2005-06-16 | Sumitomo Electric Ind Ltd | Optical fiber preform and its manufacturing method |
| CN105753311A (en) * | 2016-02-04 | 2016-07-13 | 长飞光纤光缆股份有限公司 | Device and method for degassing optical fiber preform rods |
| US20170096362A1 (en) * | 2012-12-17 | 2017-04-06 | Zhongtian Technology Advanced Materials Co., Ltd. | Apparatus and method for producing core rod of optical fiber |
| CN109264985A (en) * | 2018-11-14 | 2019-01-25 | 杭州金星通光纤科技有限公司 | A kind of degassing method and device of preform |
| CN110937795A (en) * | 2019-12-13 | 2020-03-31 | 中天科技光纤有限公司 | Optical fiber perform surface cleaning device and cleaning method |
| CN111018338A (en) * | 2020-01-07 | 2020-04-17 | 江苏通鼎光棒有限公司 | Gas seal device of VAD sintering furnace core pipe and application thereof |
| WO2021184713A1 (en) * | 2020-03-17 | 2021-09-23 | 烽火通信科技股份有限公司 | Sintering device and sintering method for optical fiber preform soot body |
| CN216404209U (en) * | 2021-12-14 | 2022-04-29 | 藤仓烽火光电材料科技有限公司 | OVD reaction device with high deposition rate |
| CN218989098U (en) * | 2022-12-24 | 2023-05-09 | 藤仓烽火光电材料科技有限公司 | Surface treatment device for quartz core rod |
-
2022
- 2022-12-24 CN CN202211681632.XA patent/CN115947537A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05294661A (en) * | 1992-04-17 | 1993-11-09 | Nippon Telegr & Teleph Corp <Ntt> | Furnace for drawing fluoride optical fiber |
| KR20050032396A (en) * | 2003-10-01 | 2005-04-07 | 엘에스전선 주식회사 | Method of and apparatus for overcladding a optical preform rod |
| JP2005154264A (en) * | 2003-10-30 | 2005-06-16 | Sumitomo Electric Ind Ltd | Optical fiber preform and its manufacturing method |
| US20170096362A1 (en) * | 2012-12-17 | 2017-04-06 | Zhongtian Technology Advanced Materials Co., Ltd. | Apparatus and method for producing core rod of optical fiber |
| CN105753311A (en) * | 2016-02-04 | 2016-07-13 | 长飞光纤光缆股份有限公司 | Device and method for degassing optical fiber preform rods |
| CN109264985A (en) * | 2018-11-14 | 2019-01-25 | 杭州金星通光纤科技有限公司 | A kind of degassing method and device of preform |
| CN110937795A (en) * | 2019-12-13 | 2020-03-31 | 中天科技光纤有限公司 | Optical fiber perform surface cleaning device and cleaning method |
| CN111018338A (en) * | 2020-01-07 | 2020-04-17 | 江苏通鼎光棒有限公司 | Gas seal device of VAD sintering furnace core pipe and application thereof |
| WO2021184713A1 (en) * | 2020-03-17 | 2021-09-23 | 烽火通信科技股份有限公司 | Sintering device and sintering method for optical fiber preform soot body |
| CN216404209U (en) * | 2021-12-14 | 2022-04-29 | 藤仓烽火光电材料科技有限公司 | OVD reaction device with high deposition rate |
| CN218989098U (en) * | 2022-12-24 | 2023-05-09 | 藤仓烽火光电材料科技有限公司 | Surface treatment device for quartz core rod |
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