CN103626392A - Device and method for manufacturing large-size mandrel loose body - Google Patents
Device and method for manufacturing large-size mandrel loose body Download PDFInfo
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- CN103626392A CN103626392A CN201310657680.XA CN201310657680A CN103626392A CN 103626392 A CN103626392 A CN 103626392A CN 201310657680 A CN201310657680 A CN 201310657680A CN 103626392 A CN103626392 A CN 103626392A
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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
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- 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 invention provides a device and a method for manufacturing large-size mandrel loose body. The device comprises a servo motor, a quartz glass substrate rod, a mandrel loose body, a core blowtorch, a coating blowtorch, a tower, a guide rail, a deposition tank, a diameter measuring device and a weight detecting device, wherein the weight detecting device is installed on a rotating chuck of the servo motor, synchronously slides on the guide rail along with the servo motor, and is used for detecting the total weight of the mandrel loose body; the diameter measuring device is installed on the two sides of the deposition tank and used for measuring the diameter of the loose body in the depositing process.
Description
Technical field
The present invention relates to field fiber, especially relate to a kind of manufacturing installation and method of large size plug loose media.
Background technology
Optical fiber normally utilize wire-drawer-tower by highly purified silica glass prefabricated rods through hot mastication wire drawing in proportion, and further apply in its surface and obtain.This highly purified silica glass prefabricated rods normally adopts " two-step approach " (Two-step Processes), comprises various plug manufacturing technologies (OVD technology: Outside Vapor Deposition, outside vapor deposition; VAD technology: Vapor Phase Axial Deposition, VAD; MCVD technology: Modified Chemical Vapor Deposition, modified chemical vapor deposition method; PCVD technology: Plasma Chemical Vapor Deposition, PCVD (Plasma Chemical Vapor Deposition)) and surrounding layer manufacturing technology (tiretube process, plasma spraying method, flame hydrolysis, colloidal sol--gel method), produce Standard single-mode fiber, the prefabricated rods process costs that adds SOOT outsourcing with VAD technology manufacture plug is minimum, and therefore most of commercial production preform is all to adopt this kind of method.
VAD technology refers at vertical seed silica based stick end, be that it is axial, there is chemical reaction, the silica glass dust particulate generating sprays through blowtorch, be deposited on seed silica based rod one end, the constantly rotation of seed silica based rod, and make progress and move at a slow speed by lifting rod, form vertically porosity and looseness body optical fiber prefabricated rod, as shown in Figure 1.
The main formulas of reaction:
Within 2004, Heraeus has released Online-RIC technology, the molten contracting that is plug-sleeve pipe is synchronizeed and is carried out with wire drawing, production stage between having reduced from optical fiber prefabricated rod mandrel to wire-drawing shape, optical fiber production efficiency is greatly improved, can realize wire drawing more than 5000km quickly, some enterprises even reach 7000km, and therefore correspondingly the manufacture of plug loose media also needs large size.But in the deposition process of preform mother metal due to combustion flame, gas flow, cavity blast, and along with the impacts such as volume of plug loose media in deposition process, the density of the loose media of deposition has obvious fluctuation, when serious, occur that variable density causes more greatly the loose media cracking in deposition or sintering process, causes the loss of product; This present invention develops a kind of novel preform base metal manufacturing device with regard to this defect, the density to loose media that can be real-time in the process of deposition is monitored, when the density of loose media has large variation tendency, in time production technique is adjusted, avoided the cracking of loose media also can improve the geometrical property of loose media and optical parametric etc. simultaneously.
Summary of the invention
The manufacturing installation that the object of this invention is to provide a kind of large size plug loose media, thereby by facilitating the adjustment of processing parameter to avoid loose media cracking that variable density causes more greatly etc. to increasing a set of Weight detecting device and a set of diameter measuring device density by the real-time reflection loose media of the calculating of program on original swivel arrangement, improve the utilization ratio of preform.
This manufacturing installation comprises: servomotor, quartz glass substrate rod, plug loose media, sandwich layer blowtorch, covering blowtorch, pylon, guide rail, deposition casing, diameter measuring device, Weight detecting device; Wherein wt proofing unit is arranged on servomotor rotary chuck, with servomotor synchronous slide on guide rail, for detection of the gross weight of plug loose media; Apparatus for detecting diameter is arranged on deposition casing both sides, detects the diameter of loose media in deposition process.
Further, described apparatus for detecting diameter is high definition CCD industry camera head, and the region measuring ability carrying by camera head itself can calculate the diameter of loose media.
Further, described Weight detecting device is by detecting tension force, to carry out the device of sense weight.
Further, the detected result by described apparatus for detecting diameter and Weight detecting device obtains density value, when variable density is larger, regulates.
Further, by manual mode, regulate, thereby described manual mode is by manually regulating the raw material of covering and sandwich layer to make the density of plug loose media in processing range.
Further, by automatic mode, regulate, described automatic mode is that automatic PID regulates, and according to the changing conditions of actual density, covering and sandwich layer raw material is carried out to automatic PID adjusting, makes density in processing range.
The manufacture method that the present invention also aims to provide a kind of large size plug loose media, this manufacture method comprises step:
Step (1) is placed quartz glass substrate rod in reaction chamber, and the rotation of base rod also moves forward into row vapor phase deposition outside sediment box;
Step (2) is sent into after reaction chamber when reactant gases, just on base rod, deposits;
Step (3) thus the volume that the plug loose media diameter of the gross weight fed back by Weight detecting device and diameter measuring device feedback calculates plug loose media in the process of deposition calculates the real-time density of plug loose media;
Step (4) is carried out manual mode adjusting when variable density is larger, thereby described manual mode is by manually regulating the raw material of covering and sandwich layer to make the density of plug loose media in processing range.
Further, described step (4) can also be for regulating by automatic mode when variable density is larger, described automatic mode is that automatic PID regulates, and according to the changing conditions of actual density, covering and sandwich layer raw material is carried out to automatic PID adjusting, makes density in processing range.
Advantage of the present invention is: the present invention has well solved the loose media cracking that loose media density fluctuation causes more greatly problem by increase a set of Weight detecting device and diameter measuring device on glass-based rod has guaranteed the stability of preform geometrical property, optical parametric, improved preform utilization ratio, economized on the use of funds.
Accompanying drawing explanation
Fig. 1 is the VAD deposition apparatus that is unkitted density on-Line Monitor Device.
Fig. 2 is the VAD deposition apparatus that density on-Line Monitor Device is housed.
Embodiment
Below in conjunction with drawings and Examples, the present invention is specifically described.
Referring to Fig. 1 and 2, Reference numeral implication is: 1 is servomotor, and 2 is Weight detecting device, and 3 is quartz glass substrate rod, and 4 is plug loose media, and 5 is sandwich layer blowtorch, and 6 is covering blowtorch, and 7 is pylon, and 8 is guide rail, and 9 is deposition casing, and 10 is diameter measuring device.In Fig. 2, Weight detecting device is arranged on servomotor rotary chuck, with servomotor 1 synchronous slide on guide rail 8, for detection of the gross weight of loose media; Apparatus for detecting diameter is arranged on deposition casing both sides, detects the diameter of loose media in deposition process.Density on-Line Monitor Device in the present invention comprises Weight detecting device and diameter measuring device.
The technical scheme that the present invention solves the employing of prior art problem is: the axial vapor deposition method (VAD----Vapor phase Axial Deposition) of take is example, this method is in reaction chamber, to place a foundation rod---quartz glass substrate rod, base rod can rotate and outside sediment box, move forward into row vapor phase deposition, as shown in Figure 1: when reactant gases is sent into after reaction chamber, just on base rod, deposit, rotatablely moving of base rod guaranteed the axial symmetry of plug, in deposition process due to combustion flame, gas flow, cavity blast, and along with the impact of the volume of plug loose media in deposition process etc., the density of plug loose media can constantly change, if variable density is too large, can cause the plug loose media cracking in deposition or sintering process, therefore the present invention has added a set of Weight detecting device and diameter measuring device on VAD deposition pylon, thereby the plug loose media diameter of the gross weight of feeding back by Weight detecting device in the process of deposition and diameter measuring device feedback can calculate the real-time density that the volume of plug loose media calculates plug loose media easily.Well solved the problem of the plug loose media cracking that plug loose media density fluctuation causes more greatly, guaranteed the stability of preform geometrical property, optical parametric, improved preform utilization ratio, economized on the use of funds.
Apparatus for detecting diameter is a kind of CCD industry camera head of high definition, and the region measuring ability carrying by camera head itself can calculate the diameter of loose media.Weight detecting device is a kind of device that carrys out sense weight by detecting tension force, thus in the process of producing along with the continuous increase device tension force of loose media weight also not section increase the weight that calculates loose media.
When variable density is larger, regulate, regulative mode has two kinds: 1: thus when manual mode, variable density are larger, technician is by manually regulating the density of raw material plug loose media of covering and sandwich layer in processing range.2: automatic mode, open automatic PID regulate when variable density is larger, system can be carried out automatic PID adjusting to covering and sandwich layer raw material according to the changing conditions of actual density, makes density in processing range.
According to manufacturing installation of the present invention, carry out the manufacture of large size plug loose media, manufacturing processed is as follows:
Step (1) is placed quartz glass substrate rod in reaction chamber, and the rotation of base rod also moves forward into row vapor phase deposition outside sediment box;
Step (2) is sent into after reaction chamber when reactant gases, just on base rod, deposits;
Step (3) thus the volume that the plug loose media diameter of the gross weight fed back by Weight detecting device and diameter measuring device feedback calculates plug loose media in the process of deposition calculates the real-time density of plug loose media;
Step (4) is carried out manual mode adjusting when variable density is larger, thereby described manual mode is by manually regulating the raw material of covering and sandwich layer to make the density of plug loose media in processing range.
Alternatively, described step (4) can also be for regulating by automatic mode when variable density is larger, described automatic mode is that automatic PID regulates, and according to the changing conditions of actual density, covering and sandwich layer raw material is carried out to automatic PID adjusting, makes density in processing range.
We are respectively to being unkitted the VAD plug depositing device of Weight detecting device and diameter measuring device and the VAD plug depositing device of erection weight proofing unit and diameter measuring device deposits respectively 10 plug loose medias, the rotating speed that keeps servomotor in deposition process is 30 revs/min, speed-raising is 0.8 mm/min, after deposition finishes, respectively these 20 loose medias are carried out to sintering, extension.To choose suitable for OVD(Outside Vapor Deposition outside vapor deposition simultaneously) quartz socket tube manufactured of technique, by plug and quartz socket tube are molten be reduced to together with, then use hydrofluoric acid (HF) to corrode its surface, obtain transparent preform, respectively by these 20 direct wire drawings of preform, adopt single-mode fiber production coating, drawing speed is 1500 ms/min, and the significant parameter of the optical fiber that draws as shown in Table 1 and Table 2.The parameter of table 1 for not having 10 optical fiber that preform draws of the VAD depositing device manufacture of erection weight proofing unit and diameter measuring device to obtain wherein, table 2 is for having installed the parameter of 10 optical fiber that preform draws acquisitions of the VAD depositing device manufacture of Weight detecting device and diameter measuring device.
Table 1--------
Note: in No. 7 plug deposition process, because ftractureing, as scrap, process.
Table 2
Data show, the transparent optical fibers prefabricated rods of the VAD depositing device manufacture that the online Real-time Feedback of employing density regulates can obtain and meet ITU-T optical fiber G.652.D completely, and the parameters of the preform of the VAD depositing device manufacture regulating than the online Real-time Feedback of not have packing density has all obtained optimization, and data tend towards stability.
Claims (8)
1. a manufacturing installation for large size plug loose media, is characterized in that this manufacturing installation comprises: servomotor, quartz glass substrate rod, plug loose media, sandwich layer blowtorch, covering blowtorch, pylon, guide rail, deposition casing, diameter measuring device, Weight detecting device; Wherein wt proofing unit is arranged on servomotor rotary chuck, with servomotor synchronous slide on guide rail, for detection of the gross weight of plug loose media; Apparatus for detecting diameter is arranged on deposition casing both sides, detects the diameter of loose media in deposition process.
2. manufacturing installation according to claim 1, is characterized in that:
Described apparatus for detecting diameter is high definition CCD industry camera head, and the region measuring ability carrying by camera head itself can calculate the diameter of loose media.
3. manufacturing installation according to claim 1 and 2, is characterized in that:
Described Weight detecting device is by detecting tension force, to carry out the device of sense weight.
4. manufacturing installation according to claim 3, is characterized in that:
Detected result by described apparatus for detecting diameter and Weight detecting device obtains density value, when variable density is larger, regulates.
5. manufacturing installation according to claim 4, is characterized in that:
By manual mode, regulate, thereby described manual mode is by manually regulating the raw material of covering and sandwich layer to make the density of plug loose media in processing range.
6. manufacturing installation according to claim 4, is characterized in that:
By automatic mode, regulate, described automatic mode is that automatic PID regulates, and according to the changing conditions of actual density, covering and sandwich layer raw material is carried out to automatic PID adjusting, makes density in processing range.
7. a manufacture method for large size plug loose media, is characterized in that this manufacture method comprises the following steps:
Step (1) is placed quartz glass substrate rod in reaction chamber, and the rotation of base rod also moves forward into row vapor phase deposition outside sediment box;
Step (2) is sent into after reaction chamber when reactant gases, just on base rod, deposits;
Step (3) thus the volume that the plug loose media diameter of the gross weight fed back by Weight detecting device and diameter measuring device feedback calculates plug loose media in the process of deposition calculates the real-time density of plug loose media;
Step (4) is carried out manual mode adjusting when variable density is larger, thereby described manual mode is by manually regulating the raw material of covering and sandwich layer to make the density of plug loose media in processing range.
8. manufacture method according to claim 7, is characterized in that:
Described step (4) can also be for regulating by automatic mode when variable density is larger, and described automatic mode is that automatic PID regulates, and according to the changing conditions of actual density, covering and sandwich layer raw material is carried out to automatic PID adjusting, makes density in processing range.
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| CN201310657680.XA CN103626392A (en) | 2013-12-09 | 2013-12-09 | Device and method for manufacturing large-size mandrel loose body |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255602A (en) * | 2017-06-06 | 2017-10-17 | 烽火通信科技股份有限公司 | The method and device of the loose volume density of on-line measurement |
| CN108147655A (en) * | 2016-12-02 | 2018-06-12 | 中天科技精密材料有限公司 | The manufacturing equipment and its manufacturing method of preform |
| CN108585470A (en) * | 2018-05-10 | 2018-09-28 | 成都富通光通信技术有限公司 | A kind of VAD prepares the device and method of highly doped germanium plug |
| CN110330221A (en) * | 2019-07-04 | 2019-10-15 | 烽火通信科技股份有限公司 | A kind of intelligent sintering system and sintering method for preform |
| CN110526573A (en) * | 2019-08-28 | 2019-12-03 | 烽火通信科技股份有限公司 | A kind of intelligence control system and method for OVD manufacture preform |
| CN111574045A (en) * | 2020-05-25 | 2020-08-25 | 华能(泰安)光电科技有限公司 | VAD deposited optical fiber preform loose body density online detection device and control method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108147655A (en) * | 2016-12-02 | 2018-06-12 | 中天科技精密材料有限公司 | The manufacturing equipment and its manufacturing method of preform |
| CN108147655B (en) * | 2016-12-02 | 2020-05-15 | 中天科技精密材料有限公司 | Apparatus for manufacturing optical fiber preform and method for manufacturing the same |
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| CN108585470A (en) * | 2018-05-10 | 2018-09-28 | 成都富通光通信技术有限公司 | A kind of VAD prepares the device and method of highly doped germanium plug |
| CN108585470B (en) * | 2018-05-10 | 2021-08-20 | 成都富通光通信技术有限公司 | Device and method for preparing high germanium-doped core rod by VAD (vapor axial deposition) |
| CN110330221A (en) * | 2019-07-04 | 2019-10-15 | 烽火通信科技股份有限公司 | A kind of intelligent sintering system and sintering method for preform |
| CN110330221B (en) * | 2019-07-04 | 2022-01-04 | 烽火通信科技股份有限公司 | Intelligent sintering system and method for optical fiber preform |
| CN110526573A (en) * | 2019-08-28 | 2019-12-03 | 烽火通信科技股份有限公司 | A kind of intelligence control system and method for OVD manufacture preform |
| CN111574045A (en) * | 2020-05-25 | 2020-08-25 | 华能(泰安)光电科技有限公司 | VAD deposited optical fiber preform loose body density online detection device and control method |
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Application publication date: 20140312 |