CN108558197A - A kind of more blowtorch longitudinal directions deposition method preparing loose media - Google Patents
A kind of more blowtorch longitudinal directions deposition method preparing loose media Download PDFInfo
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- CN108558197A CN108558197A CN201810515850.3A CN201810515850A CN108558197A CN 108558197 A CN108558197 A CN 108558197A CN 201810515850 A CN201810515850 A CN 201810515850A CN 108558197 A CN108558197 A CN 108558197A
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- Prior art keywords
- stick
- blowtorch
- loose media
- outer diameter
- deposition
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Classifications
-
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/50—Multiple burner arrangements
- C03B2207/52—Linear array of like burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/60—Relationship between burner and deposit, e.g. position
- C03B2207/66—Relative motion
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/70—Control measures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The present invention discloses a kind of more blowtorch longitudinal directions deposition method preparing loose media, several blowtorch for being used for deposition are arranged along the axial direction of kind of stick by proportional spacing, and SiCl is passed through in blowtorch4、H2、O2Reaction is hydrolyzed and generates SiO2In particle spray attachment to the kind stick of rotation, kind of stick haulage gear drive lower edge kind mandrel to the reciprocating motion for move up decline, decline process has offset relative to the process that moves up, and the loose media outer diameter when each kind of stick declines completion on detection kind stick is until loose media outer diameter reaches setting value.The SiO that the present invention makes blowtorch generate by the way of moving kind of stick along kind stick axial reciprocating2Particle multiple stacking is on kind of stick, there are one offsets for tool when moving back and forth for kind stick, the upward same position of kind mandrel can be covered by the deposition of different blowtorch, so that the dust deposited on kind stick is more uniform, it is effectively improved the shape of threads lines of loose media surface irregularity, improves the uniformity consistency of loose media outer diameter.
Description
Technical field
The present invention relates to optic fibre manufacturing technology field more particularly to a kind of longitudinal deposition sides of more blowtorch preparing loose media
Method.
Background technology
Existing more blowtorch deposition methods are improvement on the basis of single lamp deposits, and multiple blowtorch are linear by proportional spacing
Arrangement, each torch flame center to quasi-cylindrical and the kind stick that has certain rotating speed, and relative to kind of stick edge according to certain rules
The axially reciprocating for kind stick makes dust adhesion to kind of a stick surface.Under the influence of waste discharge apparatus, it is easy to cause SiO2Dust
It accumulates and has differences on kind of stick, cause to cause there are rough shape of threads lines on finally obtained loose media surface
The outer diameter of prefabricated rods after vitrifying is difficult to reach uniformity, influences the performance for the optical fiber that wire drawing obtains.
Invention content
The technical problems to be solved by the invention and the technical assignment of proposition are improved to the prior art, and one kind is provided
The more blowtorch longitudinal directions deposition method for preparing loose media, the more blowtorch deposition methods solved in current technology are easy on loose media surface
Upper to generate rough shape of threads lines, loose media uniform external diameter consistency is poor, the problem of influencing optical fiber property.
In order to solve the above technical problems, the technical scheme is that：
A kind of more blowtorch longitudinal directions deposition method preparing loose media, which is characterized in that several are used for the blowtorch edge of deposition
The axial direction for kind stick is arranged by proportional spacing, and blowtorch quantity is N, and N >=2, L are the spacing of adjacent blowtorch, and X is preset offset distance
From M is the number of setting, and R is to need loose media outer diameter setting value to be achieved；
SiCl is passed through in blowtorch4、H2、O2Reaction is hydrolyzed and generates SiO2Kind stick vertically of the particle spray attachment to rotation
On, stick is planted in the drive lower edge kind mandrel of haulage gear to the distance for moving up L, and kind of stick is axially then declined L-X's along it again
Thus distance completes a reciprocation period, after kind stick does M-1 reciprocation period, kind stick moves up L's along its axial direction again
Distance, the distance for then declining L-X+M*X again return to initial position, thus complete a global cycle period；
The above-mentioned global cycle period is repeated, and is detected on kind of stick by diameter measurer when each kind of stick declines completion
Loose media outer diameter obtains actual measurement loose media outer diameter, if when actual measurement loose media outer diameter >=R, production terminates；If surveying outside loose media
Diameter ＜ R, then continue to execute the global cycle period.
The more blowtorch longitudinal directions deposition method of the present invention for preparing loose media is used moves kind of a stick along kind stick axial reciprocating
Mode make blowtorch generate SiO2Particle multiple stacking finally obtains required loose body thickness on kind of stick, and kind stick exists
There are one offsets for tool when reciprocating motion, so that there is the deposition region of overlapping between blowtorch, that is, kind mandrel is upward
Same position can be covered by the deposition of different blowtorch so that the dust that deposits is more uniform on kind stick, is effectively improved loose
The rough shape of threads lines in body surface face, and planted in the more blowtorch longitudinal directions deposition method of the present invention for preparing loose media
The distance of stick single movement, reaches the length or so of blowtorch spacing so that the axial direction that blowtorch covers in kind of stick single movement
Region is long, and loose media surface can be made more flat, improve loose media outer diameter uniformity consistency, and target rod completion move up,
Decline primary rear i.e. measurement loose media outer diameter, the accurate deposition conditions for monitoring loose media, to ensure loose media deposition process
Accuracy improves the making quality of preform, ensures the good performance of optical fiber.
Further, the X is 5~30mm, is effectively improved the shape of threads lines of loose media surface irregularity, is improved
Deposition uniformity.
Further, the upper and lower sides of the described blowtorch for deposition be also respectively provided with for be sintered the first lamp of ending with
Taillight, first lamp, taillight, along the axial alignment of kind of stick, obtained pine will be deposited using first lamp and taillight with the blowtorch for deposition
Two end surfaces of granular media in the axial direction are burnt into crystalline state, and loose media is avoided to crack.
Further, the raw material flow of the blowtorch for deposition of top side leaves the distance increase of initial position with kind of stick
And increase, the raw material flow of the blowtorch for deposition of lower side leaves the distance increase of initial position with kind of stick and reduces, and has
The surface slope at the both ends of effect control loose media in the axial direction, saves raw material so that the both ends of loose media have good transition
Area avoids forming very steep and very little a step at loose media both ends, avoids loose media from cracking, improve optical fiber prefabricating
Yields is made in stick, ensures the performance for the optical fiber that wire drawing obtains.
Further, when each diameter measurer detects the loose media outer diameter on kind of stick, if actual measurement loose media outer diameter ＜ R,
Then adjusting blowtorch and planting the spacing between stick makes blowtorch keep constant distance with the surface for planting loose media on stick, it is ensured that loose media
Surface is located at the high temperature section of torch flame, this section feed distribution is more uniform, and the stability of flame, hydrolysis
Also fully, deposition can be made to reach good heat and gush effect, ensure efficient deposition efficiency, it is ensured that at loose media surface temperature field
Consistency ensures the stability of airflow field, the consistency of the settled density of loose media radially is ensured, after ensureing vitrifying
The consistency of obtained prefabricated rods vitreum outer diameter.
Further, the blowtorch holding position is constant, laterally moves kind of stick to make blowtorch and plant on stick loosely
The surface of body keeps constant distance, and blowtorch is stationary in injection so that within the deposition chamber flame and stream condition keep stabilization,
The preferable shape of flame is maintained, is not easy to dissipate, has using loose media deposition accuracy and quality is ensured, improves deposition efficiency.
Compared with prior art, the invention has the advantages that：
The more blowtorch longitudinal directions deposition method of the present invention for preparing loose media is used moves kind of a stick along kind stick axial reciprocating
Mode make blowtorch generate SiO2On kind of stick, kind stick has when moving back and forth there are one offset particle multiple stacking,
So that the dust deposited on kind stick is more uniform, it is effectively improved the shape of threads lines of loose media surface irregularity, makes loose media
Surface is more flat, improves the uniformity consistency of loose media outer diameter；
The effectively surface slope at the both ends of control loose media in the axial direction, saves raw material so that the both ends of loose media have
Good transition region, avoids loose media from cracking, and improves the yields that is made of preform, ensures the property for the optical fiber that wire drawing obtains
Energy；
The surface of blowtorch and loose media on kind stick keeps constant distance, ensures efficient deposition efficiency, it is ensured that loose body surface
The consistency in temperature field at face ensures the stability of airflow field, ensures the consistency of the settled density of loose media radially, to
Ensure the consistency of the prefabricated rods vitreum outer diameter obtained after vitrifying.
Description of the drawings
Fig. 1 is the structural schematic diagram of more blowtorch；
Fig. 2 is the logic control flow process figure of deposition process；
Fig. 3 is the raw material flow change schematic diagram of blowtorch 1；
Fig. 4 is the raw material flow change schematic diagram of blowtorch n.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of more blowtorch longitudinal directions deposition method preparing loose media disclosed by the embodiments of the present invention so that the weight between blowtorch
The dust deposited in superimposition cover area is more uniform, is effectively improved the shape of threads lines of loose media surface irregularity, improves pine
Granular media uniform external diameter consistency improves the making quality of preform, ensures the good performance of optical fiber.
As shown in Figure 1, a kind of more blowtorch longitudinal directions deposition method preparing loose media, kind stick a vertical liftings are mounted in electric rotating machine
On, electric rotating machine is connected on jacking system, and jacking system drives kind of a stick a to move up and decline, several are used for the blowtorch of deposition
It is arranged by proportional spacing along kind of the axial direction of stick a, blowtorch quantity is N, and N >=2, blowtorch is blowtorch 1, blowtorch successively from bottom to top
2 ... blowtorch n, L are the spacing of adjacent blowtorch, and X is preset offset distance, and X is 5~30mm, and M is the number of setting, and R is to need
Loose media outer diameter setting value to be achieved is also respectively provided with the head for being sintered ending in the upper and lower sides of the blowtorch for deposition
Lamp and taillight, first lamp, taillight are with the blowtorch for deposition along kind of an axial alignment of stick a；
SiCl is passed through in blowtorch4、H2、O2Reaction is hydrolyzed and generates SiO2Kind stick a vertically of the particle spray attachment to rotation
On, kind stick a axially moves up the distance of L in the drive lower edge kind stick a of haulage gear, and kind stick a is axially then declined L-X along it again
Distance, thus complete a reciprocation period, after kind stick a does M-1 reciprocation period, plant stick a again in its axial direction
The distance of L is moved, the distance for then declining L-X+M*X again returns to initial position, thus completes a global cycle period；
The above-mentioned global cycle period is repeated, and is detected on kind of stick a by diameter measurer when each kind of stick a declines completion
Loose media outer diameter obtain actual measurement loose media outer diameter, if when actual measurement loose media outer diameter >=R, production terminates；If surveying loose media
Outer diameter ＜ R, then continue to execute the global cycle period.
As shown in Fig. 2, controlling deposition process using PLC program system, when production starts, stick a is in haulage gear for kind
It drives lower edge kind stick a axially to move up the distance of L, then judges whether return to primitive age position, sentenced with the number M of setting
Disconnected, the distance that stick a declines L-X+M*X is planted if the number that kind stick a is moved up reaches M returns to initial position, if time that kind stick a is moved up
Number is not up to M and then plants stick a decline L-X, and when each lowering actions of kind of stick a are completed using the outer of laser detection loose media
Diameter, when surveying loose media outer diameter >=R, then production terminates, and kind of stick is returned if surveying loose media outer diameter ＜ R in kind stick a axial directions
The step of moving L.
In order to enable loose media has good transition region at axial both ends, good surface slope is formed, pine is avoided
Granular media cracks, and the raw material flow of blowtorch of the control at the both ends of loose media axial direction is needed, to be accurately controlled deposition of thick
Degree, as shown in Figure 3, Figure 4, the raw material flow of the blowtorch 1 of lower side leaves the distance of initial position with kind of stick a, and (kind stick a is moved up
Real-time range) increase and reduces, the raw material flow of the blowtorch n of top side leaves the distance of initial position (on kind stick a with kind of stick a
The real-time range of shifting) increase and increases.
In order to ensure the consistency of the settled density of loose media radially, the prefabricated rods vitreum obtained after vitrifying is ensured
The consistency of outer diameter needs to make at a distance from blowtorch and the loose media surface planted on stick keep constant, to ensure efficient deposition efficiency,
The consistency for ensuring temperature field at loose media surface ensures the stability of airflow field, is detected on kind of stick a in each diameter measurer
When loose media outer diameter, if actual measurement loose media outer diameter ＜ R, the spacing for adjusting blowtorch and planting between stick a makes blowtorch and plants on stick a
The surface of loose media keeps constant distance, and in order to avoid blowtorch movement leads to flame instability, using kind of stick a movements, blowtorch is protected
The constant mode in position is held, setting drives kind of a stick transverse shifting transverse-moving mechanism, along cross after the loose media outer diameter increase on kind of stick a
Blowtorch is made to keep constant distance with the surface for planting loose media on stick a to mobile kind of stick a.
Preferably, it using 6~8 blowtorch for deposition, and provided with the first lamp and taillight for being sintered ending, is used for
It is passed through SiCl in the blowtorch of deposition4、H2、O2, H2, O2 have been passed through in first lamp and taillight, altogether 8~10 lamps, adjacent blowtorch
Spacing is 250~300mm, and the distances that are moved up under the drive of haulage gear of kind stick a are 250~300mm, when not using offset
When control, the joining place between adjacent blowtorch is easy to form step, while the same position that pauses when motor commutation, leads to thread surface
Formation it is obvious that preset offset distance X is 6.5~7.5mm, number M is set as 20, then run a global cycle period
When, total drift amount reaches 125~150mm, is the half of blowtorch spacing, and the paused position of commutation changes every time, then
The ripple that surface is formed is controlled effectively, and improves the uniformity consistency of loose media outer diameter.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (6)
1. a kind of more blowtorch longitudinal directions deposition method preparing loose media, which is characterized in that several for deposition blowtorch along
The axial direction of kind stick (a) is arranged by proportional spacing, and blowtorch quantity is N, and N >=2, L are the spacing of adjacent blowtorch, and X is preset offset
Distance, M are the number of setting, and R is to need loose media outer diameter setting value to be achieved；
SiCl is passed through in blowtorch4、H2、O2Reaction is hydrolyzed and generates SiO2In particle spray attachment to the kind stick (a) vertically of rotation,
Kind stick (a) axially moves up the distance of L in the drive lower edge kind stick (a) of haulage gear, then will plant stick (a) again along its axially decline
Thus the distance of L-X completes a reciprocation period, after kind stick (a) does M-1 reciprocation period, kind stick (a) is again along it
The distance of L is axially moved up, the distance for then declining L-X+M*X again returns to initial position, thus completes a global cycle period；
The above-mentioned global cycle period is repeated, and is detected on kind of stick (a) by diameter measurer when each kind of stick (a) declines completion
Loose media outer diameter obtain actual measurement loose media outer diameter, if when actual measurement loose media outer diameter >=R, production terminates；If surveying loose media
Outer diameter ＜ R, then continue to execute the global cycle period.
2. the more blowtorch longitudinal directions deposition method according to claim 1 for preparing loose media, which is characterized in that the X is 5
~30mm.
3. the more blowtorch longitudinal directions deposition method according to claim 1 for preparing loose media, which is characterized in that described is used for
The upper and lower sides of the blowtorch of deposition be also respectively provided with for be sintered ending first lamp and taillight, first lamp, taillight with for deposition
Blowtorch along kind of stick (a) axial alignment.
4. the more blowtorch longitudinal directions deposition method according to claim 1 for preparing loose media, which is characterized in that the use of top side
The distance increase of initial position being left with kind of stick (a) in the raw material flow of the blowtorch of deposition and being increased, lower side is used to deposit
Blowtorch raw material flow with kind of stick (a) leave initial position distance increase and reduce.
5. the more blowtorch longitudinal directions deposition method according to claim 1 for preparing loose media, which is characterized in that calibrating every time
When device detects the loose media outer diameter on kind of stick (a), if actual measurement loose media outer diameter ＜ R, are adjusted between blowtorch and kind stick (a)
Spacing makes blowtorch keep constant distance with the surface for planting loose media on stick (a).
6. the more blowtorch longitudinal directions deposition method according to claim 5 for preparing loose media, which is characterized in that the blowtorch
Holding position is constant, laterally moves kind of stick (a) to make blowtorch keep constant distance with the surface for planting loose media on stick (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810515850.3A CN108558197A (en) | 2018-05-25 | 2018-05-25 | A kind of more blowtorch longitudinal directions deposition method preparing loose media |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810515850.3A CN108558197A (en) | 2018-05-25 | 2018-05-25 | A kind of more blowtorch longitudinal directions deposition method preparing loose media |
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| CN201810515850.3A Pending CN108558197A (en) | 2018-05-25 | 2018-05-25 | A kind of more blowtorch longitudinal directions deposition method preparing loose media |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248133A (en) * | 2021-05-31 | 2021-08-13 | 中天科技精密材料有限公司 | Optical fiber preform manufacturing equipment and manufacturing method of optical fiber preform using same |
| CN114573225A (en) * | 2022-03-16 | 2022-06-03 | 武汉烽火锐拓科技有限公司 | Regulation and control device and method for improving concentricity of core packet of VAD optical fiber preform |
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| CN1646435A (en) * | 2002-04-18 | 2005-07-27 | 住友电气工业株式会社 | Method of manufacturing glass particulate stacked body |
| CN204588997U (en) * | 2015-04-23 | 2015-08-26 | 浙江富通光纤技术有限公司 | A kind of sintering blowtorch of preform |
| CN104909556A (en) * | 2015-06-05 | 2015-09-16 | 江苏法尔胜光子有限公司 | Method for preparing loose optical fiber preform by use of multiple blowlamps |
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2018
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| CN1344694A (en) * | 2000-09-21 | 2002-04-17 | 住友电气工业株式会社 | Method for production of fibre-optical prefab |
| CN1646435A (en) * | 2002-04-18 | 2005-07-27 | 住友电气工业株式会社 | Method of manufacturing glass particulate stacked body |
| CN204588997U (en) * | 2015-04-23 | 2015-08-26 | 浙江富通光纤技术有限公司 | A kind of sintering blowtorch of preform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248133A (en) * | 2021-05-31 | 2021-08-13 | 中天科技精密材料有限公司 | Optical fiber preform manufacturing equipment and manufacturing method of optical fiber preform using same |
| CN114573225A (en) * | 2022-03-16 | 2022-06-03 | 武汉烽火锐拓科技有限公司 | Regulation and control device and method for improving concentricity of core packet of VAD optical fiber preform |
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