JPH02160636A - Method and structure for supporting glass matrix - Google Patents
Method and structure for supporting glass matrixInfo
- Publication number
- JPH02160636A JPH02160636A JP31495688A JP31495688A JPH02160636A JP H02160636 A JPH02160636 A JP H02160636A JP 31495688 A JP31495688 A JP 31495688A JP 31495688 A JP31495688 A JP 31495688A JP H02160636 A JPH02160636 A JP H02160636A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- glass
- starting
- supporting
- starting base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000011159 matrix material Substances 0.000 title abstract 12
- 239000000112 cooling gas Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 105
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000010419 fine particle Substances 0.000 abstract description 10
- 230000008021 deposition Effects 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 abstract description 2
- 239000007858 starting material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 241000283986 Lepus Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- 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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
Landscapes
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分計〉
本発明は、例えばＶＡＤ法あるいはＯＶＤ法等により光
フアイバ用のガラス母材を作製するに際し、ガラス母材
形成用の出発母材を固定するガラス母材の支持方法及び
ガラス母材の支持構造に関する。[Detailed Description of the Invention] <Industrial Application> The present invention is useful for fixing a starting base material for forming a glass base material when producing a glass base material for an optical fiber by, for example, a VAD method or an OVD method. The present invention relates to a method for supporting a glass base material and a support structure for a glass base material.
〈従来の技術〉
ガラス母材製造方法としては、例えばＶＡＤ法（Ｖａｐ
ｏｕｒ ｐｈａｓｅ Ａｍ１ｄ Ｄｅｐｏｓｉｔｉｏｎ
）あるいはＯＶＤ法（Ｏｕｔｓｉｄ＠Ｖａｐｏｕｒ ｐ
ｈａｓｅ Ｄｅｐｏｓｉｔｉｏｎ）等が知られており、
出発母材周囲に、例えば石英等のガラス微粒子体を形成
した後、得られた出発材・ガラス微粒子複合体を加熱透
明化することにより、例えば光ファイバ、ガラス基板等
に用いられるガラス母材を得ている。この際、前記出発
材・ガラス微粒子複合体は加熱装置に設けられた支持棒
に、出発材の一端部分を結合させて透明化処理を行って
いる。上記方法において、ガラス母材形成用の出発材の
支持・固定方法として種々のものが知られており、その
支持構造の一例を第３図、第４図に示す。<Prior art> As a glass base material manufacturing method, for example, the VAD method (Vap
our phase Am1d Deposition
) or OVD method (Outsid@Vapour p
hase Deposition) etc. are known.
After forming glass fine particles such as quartz around the starting material, the resulting starting material/glass fine particle composite is heated to make it transparent, thereby producing a glass base material used for, for example, optical fibers, glass substrates, etc. It has gained. At this time, the starting material/glass fine particle composite is transparentized by bonding one end of the starting material to a support rod provided in a heating device. In the above method, various methods are known for supporting and fixing the starting material for forming the glass base material, and an example of the supporting structure is shown in FIGS. 3 and 4.
従来の支持構造の一例を示す第３図に示すように、支持
棒１０の把持部となる下端部１０ａには、出発母材１１
と略同径の嵌合口１０ｂが形成されると共に、この嵌合
口１０ｂに挿入される出発母材１１の上端部１１ａに設
けられたピン係止孔１１ｂに対向するピン係止孔１０ｃ
が設けられている。これによって出発母材１１を上記嵌
合口１０ｂに挿入し、ピン係止孔１１ｂとピン係止孔１
０ｃとを一致させて軸と直行する方向にビン１２を挿入
することによゆ、出発母材１１を支持棒１０に対して固
定するようにしている。As shown in FIG. 3, which shows an example of a conventional support structure, a starting base material 11 is attached to the lower end 10a of the support rod 10, which serves as a gripping portion.
A fitting opening 10b having approximately the same diameter as the fitting opening 10b is formed, and a pin locking hole 10c facing the pin locking hole 11b provided in the upper end portion 11a of the starting base material 11 inserted into the fitting opening 10b.
is provided. As a result, the starting base material 11 is inserted into the fitting opening 10b, and the pin locking hole 11b and the pin locking hole 1 are inserted.
The starting base material 11 is fixed to the support rod 10 by inserting the bottle 12 in a direction perpendicular to the axis with the 0c aligned with the starting material 11.
また、図中符号１３は出発母材１０に堆積したガラス微
粒子堆積体、符号１４は炉心管、符号１５はヒータをそ
れぞれ示している。Further, in the figure, reference numeral 13 indicates a glass particle deposit deposited on the starting base material 10, reference numeral 14 indicates a furnace tube, and reference numeral 15 indicates a heater.
また他の従来の支持構造の一例を示す第４図に示すよう
に、支持棒２０の下端部２０ａには、出発母材２１の頭
部２１ａを挿入固定する切欠き部２２が設けられており
、出発母材２１の頭部２１ａを切欠き部２２内に挿入係
止させて、出発母材２１の上端部を固定するようにして
いる。Further, as shown in FIG. 4 showing an example of another conventional support structure, the lower end 20a of the support rod 20 is provided with a notch 22 into which the head 21a of the starting base material 21 is inserted and fixed. The head 21a of the starting base material 21 is inserted and locked into the notch 22 to fix the upper end of the starting base material 21.
〈発明が解決しようとする課題〉
しかしながら、従来の出発母材の支持方法には下記のよ
うな問題がある。<Problems to be Solved by the Invention> However, the conventional method of supporting a starting base material has the following problems.
■ 上記出発母材、ガラス微粒子複合体を加熱する際に
、出発母材を支持している部分が同時に加熱され、該加
熱時に、常に一定の応力を受けた状態となり、出発母材
の変形が生じてしまい、出発母材の落下、あるいは熱膨
張によって支持棒からの脱肴が不可能となる。■ When heating the above-mentioned starting base material and glass fine particle composite, the part supporting the starting base material is heated at the same time, and during heating, it is always under constant stress, causing deformation of the starting base material. This occurs, and it becomes impossible to remove the starting material from the support rod due to falling or thermal expansion.
■ また、出発母材の外径を太くして熱伝導を解消する
ために、出発母材の外径を太くするようにしているが、
材料費の上昇あるいはガラス微粒子を形成する際に、出
発母材の熱容量が大きくなり、十分な加熱ができないた
め、ガラス微粒子を良好に形成できないという問題があ
る。■Also, in order to eliminate heat conduction by increasing the outer diameter of the starting base material, the outer diameter of the starting base material is increased.
There is a problem in that the cost of materials increases or when forming glass particles, the heat capacity of the starting base material becomes large and sufficient heating is not possible, making it impossible to form glass particles well.
■ 更に、出発母材の端部からガラス微粒子を堆積させ
始めるまでの距離を長くして、応力の集中する支持棒と
出発母材の結合部分が高温にさらさないようにしている
が、この場合、製造可能なガラス母材の長さが限定され
てしまうため、実質的にガラス微粒子堆積体の長さを短
くする必要がある。■Furthermore, the distance from the end of the starting base material to the point where the glass particles begin to be deposited is lengthened to prevent the bonding area between the support rod and the starting base material, where stress is concentrated, from being exposed to high temperatures. Since the length of the glass base material that can be manufactured is limited, it is necessary to substantially shorten the length of the glass particle deposit.
本発明は、以上述べた事情に鑑み、特に熱変形し易い出
発母材の支持部分の変形がな（、ガラス微粒子堆積部分
の長尺化を図るようにしたガラス母材の支持方法及びガ
ラス母材の支持構造を提供することを目的とする。In view of the above-mentioned circumstances, the present invention provides a method for supporting a glass base material that does not deform the support portion of the starting base material that is particularly easily deformed by heat (and a method for supporting a glass base material that increases the length of the part on which glass fine particles are deposited). The purpose is to provide a support structure for materials.
く課題を解決するための手段〉
前記目的を達成するための本発明のガラス母材の支持方
法の構成は、出発母材の周囲にガラス微粒子を堆積させ
た後加熱透明化してガラス化する際に、鉛直軸回りに回
転される出発母材の端部を出発母材用支持棒によって係
合・支持するガラス母材の支持方法において、上記出発
母材用支持棒と出発母材との係合・支持部分を冷却ガス
によ顎冷却しつつ係合・支持することを特徴とし、一方
のガラス母材の支持構造の構成は、ガラス母材製造時に
鉛直軸回りに回転される出発母材の端部を出発母材用支
持棒の端部に形成した係止穴に係合させて係合支持する
ガラス母材の支持構造において、上記出発母材用支持棒
の軸方向に貫通すると共に上記支持棒の係止穴に連通す
る冷却ガス流路を出発母材用支持棒に設けたことを特徴
とする。Means for Solving the Problems> The structure of the method for supporting a glass base material of the present invention for achieving the above-mentioned object is such that glass fine particles are deposited around a starting base material and then heated to become transparent and vitrified. In a method for supporting a glass base material in which an end of a starting base material rotated around a vertical axis is engaged and supported by a starting base material support rod, the relationship between the starting base material support rod and the starting base material is It is characterized by engaging and supporting the mating and supporting portions while being cooled by cooling gas, and the structure of the support structure for one glass base material is based on the starting base material that is rotated around a vertical axis during the production of the glass base material. In a support structure for a glass base material, the end of which is engaged with and supported by a locking hole formed at the end of a support rod for a starting base material, the support rod for a starting base material is penetrated in the axial direction of the support rod for the starting base material, and The present invention is characterized in that the starting base material support rod is provided with a cooling gas flow path that communicates with the locking hole of the support rod.
く作 用〉
出発母材にガラス微粒子を堆積させた後、ガラス化する
に際して、出発母材用支持棒と出発母材との係合・支持
部分に冷却ガスがガス流通路を介して導入され、該係合
・支持部分を冷却する。After depositing glass particles on the starting base material and vitrifying it, a cooling gas is introduced through the gas flow path into the engagement and support portion between the starting base material support rod and the starting base material. , cooling the engaging/supporting portion.
く実 施 例〉
以下、本発明の一実施例を図面を参照して詳細に説明す
る。Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
尚、従来例と重複する同一の部材については同符号を付
してその説明を省略する。Incidentally, the same reference numerals are given to the same members as in the conventional example, and the explanation thereof will be omitted.
第１図に示すように、出発母材用支持棒（以下、「支持
棒」という。）ｉｏｏには、径方向中央部を軸方向に貫
通するガス流路１０１が支持棒１００の嵌合口１００ｂ
に連通するように形成されており、図示しないガス供給
源からの冷却ガスＧを該嵌合口１０ｂに導入するように
している。この冷却用の冷却ガスＧとしては、例えば窒
素、ヘリウム等の不活性ガスを挙げることができる。As shown in FIG. 1, the starting base material support rod (hereinafter referred to as "support rod") ioo has a gas flow path 101 that axially passes through the radial center portion of the support rod 100 and a fitting opening 100b of the support rod 100.
The fitting opening 10b is formed so as to be in communication with the fitting opening 10b, and cooling gas G from a gas supply source (not shown) is introduced into the fitting opening 10b. Examples of the cooling gas G for cooling include inert gases such as nitrogen and helium.
よって、この導入された冷却ガスＧにより、支持棒１０
０の下端部の嵌合口１００ｂにピン１２によって係合・
支持されている出発母材１１の上端部分が冷却されて、
ガラス透明化時の高温加熱時に、支持棒１００及び出発
母材１１のガラス粘度が上昇することがなくなり、熱変
形することが防止される。Therefore, the introduced cooling gas G causes the support rod 10 to
The pin 12 engages the fitting opening 100b at the lower end of the
The upper end portion of the supported starting base material 11 is cooled,
The glass viscosity of the support rod 100 and the starting base material 11 does not increase during high-temperature heating during glass transparency, and thermal deformation is prevented.
次に、第２図を参照して本発明の他の一実施例について
説明する。Next, another embodiment of the present invention will be described with reference to FIG.
第２図に示すように、本実施例に係る支持棒２００には
、径方向中央部を軸方向に貫通するガス流路２１０が支
持棒２００に形成された切欠部２０２内に連通ずるよう
に形成されており、前述した実施例と同様に、冷却ガス
Ｇを切欠部２０２内に導入している。As shown in FIG. 2, the support rod 200 according to this embodiment has a gas passage 210 that axially passes through the radially central portion and communicates with a notch 202 formed in the support rod 200. The cooling gas G is introduced into the notch 202 similarly to the embodiment described above.
そして、との切欠部２０２内に係合される出発母材２０
１の頭部２０１ａを冷却ガニＧによって冷却している。and the starting base material 20 engaged within the notch 202 of the
1's head 201a is cooled by a cooling crab G.
また、この出発母材２０１には、該母材２０１の上端部
分の径方向中央部を軸方向に貫通するガス流路２１１が
形成されており、上記支持棒２００の切欠部２０２内に
導入された冷却ガスＧを出発母材２０１内に導入し、該
出発母材２０１の上端部分を更に内側から冷却している
。このため、本実施例においては、支持棒２００内に形
成したガス流路２１０と出発母材２０１内のガス流路２
１１とを連通する連通部材２１２を設けろことによって
、直接冷却ガスＧを効率よく送るようにしている。この
連通部材２１２は、支持棒２００に形成されたガス流４
２１０内を上下動可能とすると共に、軸方向の上記ガス
流路２１０，２１１とそれぞれに対向するガス通路２１
２ａを有しており、支持棒２００に形成された切欠部２
０２内に出発母材２０１を係合する際には図中上方に移
動して係止させ、その後下方に降ろして、出発母材２０
１のガス流路２１１と連通するようにしている。Further, a gas passage 211 is formed in this starting base material 201 and passes through the radial center of the upper end portion of the base material 201 in the axial direction. Cooling gas G is introduced into the starting base material 201 to further cool the upper end portion of the starting base material 201 from the inside. Therefore, in this embodiment, the gas flow path 210 formed in the support rod 200 and the gas flow path 2 formed in the starting base material 201 are
By providing a communication member 212 that communicates with 11, the cooling gas G is efficiently sent directly. This communication member 212 is connected to the gas flow 4 formed in the support rod 200.
A gas passage 21 that is movable up and down within 210 and that faces the gas flow passages 210 and 211 in the axial direction.
2a, and a notch 2 formed in the support rod 200.
When engaging the starting base material 201 in the inside of the starting base material 201, move it upward in the figure to lock it, and then lower it to the bottom to engage the starting base material 201.
It communicates with the gas flow path 211 of No. 1.
以上、述べたように、本実施例に係るガラス母材の支持
構造とすることにより、支持棒及び出発母材の熱に対す
る耐久性が向上することとなる。また、第１図に示すよ
うに、出発母材の端部から、ガラス微粒子堆積体１３を
形成し始めるまでの部分Ｉを従来よりも短くすることが
でき、加工可能な有効母材長りを従来よりも大とするこ
とができる。よって大幅な設備改良をすることなしに母
材の長尺化を図ることができる。As described above, the support structure for the glass base material according to this embodiment improves the durability of the support rod and the starting base material against heat. In addition, as shown in FIG. 1, the portion I from the end of the starting base material to the beginning of forming the glass fine particle deposit 13 can be made shorter than before, and the effective length of the base material that can be processed can be reduced. It can be made larger than before. Therefore, it is possible to increase the length of the base material without making significant equipment improvements.
尚、前述した第１図に示す実施例においては、出発母材
１１の上端部分に冷却ガスＧを導入して冷却するガス流
路を設けていないが、本実施例と同様にガス流路を形成
してもよいことは当然である。Note that in the embodiment shown in FIG. 1 described above, a gas flow path for introducing cooling gas G into the upper end portion of the starting base material 11 for cooling is not provided, but a gas flow path is provided as in this embodiment. Of course, it may be formed.
また、本実施例においては、支持棒の軸中央部にガス流
路を形成して、出発母材と支持棒との係合・支持部を冷
却するようにしたが、本発明方法はこれに限定されず、
例えばガス導入管を上記支持棒と出発母材との係合・支
持部分に供給するように設けて、冷却するようにしても
よく、要は該支持部分を効率よく冷却する構造であれば
いずれでもよい。In addition, in this example, a gas flow path was formed in the center of the axis of the support rod to cool the engagement and support portion between the starting base material and the support rod, but the method of the present invention is not limited to this. not limited,
For example, a gas introduction pipe may be provided to supply the engagement/support portion between the support rod and the starting base material for cooling.In short, any structure that efficiently cools the support portion may be used. But that's fine.
く試 験 例〉
以下に、本発明の効果を示す試験例を比較例を挙げて説
明する。Test Examples> Test examples demonstrating the effects of the present invention will be described below with reference to comparative examples.
試験例
前述した第１図に示すガラス母材の支持装置を用いて本
試験を行った。Test Example This test was conducted using the glass base material support device shown in FIG. 1 described above.
先ず先端が外径１８φ−長さ４０ｍであると共に外径１
９φ−長さ９００ｍｍの出発母材の周囲に出発母材上端
から２００５１１１の位置よりガラス微粒子を堆積させ
たガラス母材を用い、この出発母材の端部を内径１８．
５φ−外径３０φ−のパイプ状支持棒で支持し、軸と直
交する方向に設けた内径４．５φ閣のビン挿入孔に、外
径４φ鵬のセラミックス製ピンを挿入して固定した。次
いで支持棒に形成した冷却ガス流路に冷却ガスを２０１
／ｍｉｎの速度で流しながら炉心管内を高温に加熱し、
ガラス透明化を行った。First, the tip has an outer diameter of 18φ and a length of 40m, and the outer diameter is 1.
Using a glass base material in which glass particles are deposited around a starting base material of 9φ-length 900 mm from a position of 2005111 from the upper end of the starting base material, the end of this starting base material has an inner diameter of 18.
It was supported by a pipe-shaped support rod with a diameter of 5φ and an outer diameter of 30φ, and a ceramic pin with an outer diameter of 4φ was inserted into a bottle insertion hole of an inner diameter of 4.5φ provided in a direction perpendicular to the axis and fixed. Next, cooling gas is introduced into the cooling gas flow path formed in the support rod 201.
The inside of the reactor core tube is heated to a high temperature while flowing at a speed of /min.
The glass was made transparent.
この結果、支持棒、出発母材の係合・支持部には変形が
全く見られなかった。As a result, no deformation was observed in the support rod and the engagement/support portion of the starting base material.
比較例
冷却ガス流路を設けない従来の支持棒を用いて出発母材
を支持し、前記試験例と同様に操作した。Comparative Example The starting base material was supported using a conventional support rod without a cooling gas flow path, and the same operation as in the test example was performed.
ガラス透明化をしたところ、出発母材上部が、最小径約
１０φ閣まで引き伸びてしまい、また、支持棒と出発母
材とを係止するビン孔も楕円状に変形した。When the glass was made transparent, the upper part of the starting base material was stretched to a minimum diameter of approximately 10φ, and the hole that engaged the support rod and the starting base material was also deformed into an elliptical shape.
また、本比較例において、出発母材が変形を起こさない
ようにする場合は、ガラス微粒子を堆積させるのは出発
母材上端から長さ１を４００ｍ以上必要となり、試験例
に比べ製造可能で且つ有効母材長である長さしを２００
ｍ以上短くする必要があった。In addition, in this comparative example, if the starting base material is to be prevented from deforming, depositing glass particles would require a length of 400 m or more from the top of the starting base material, which would be easier to manufacture than in the test example. The length, which is the effective base material length, is 200
It was necessary to shorten the length by more than m.
〈発明の効果〉
以上、実施例、試験例と共に詳しく説明したように、本
発明によれば支持棒及び出発母材の熱変形を防止するこ
とができ、大幅な改良なしに有効使用母材の長さを長（
することが可能となる。<Effects of the Invention> As explained above in detail together with Examples and Test Examples, according to the present invention, thermal deformation of the support rod and the starting base material can be prevented, and the effective use of the base material can be achieved without significant improvement. length to length (
It becomes possible to do so.
第１図は本発明の一実施例に係るガラス母材の支持構造
の概略図、第２図は他の一実施例に係るガラス母材の支
持構造の概略図、第３図。
第４図はそれぞれ従来例に係る支持構造の概略図を示す
。
図 面 中、
１００．２００は出発母材用支持棒、
１１．２０１は出発母材、
１０１．２１０，２１１は冷却ガス流路、Ｇは冷却ガス
を示す。FIG. 1 is a schematic diagram of a support structure for a glass base material according to one embodiment of the present invention, FIG. 2 is a schematic diagram of a support structure for a glass base material according to another embodiment, and FIG. FIG. 4 each shows a schematic diagram of a support structure according to a conventional example. In the drawing, 100.200 is a support rod for the starting base material, 11.201 is the starting base material, 101.210, 211 is a cooling gas flow path, and G is a cooling gas.
Claims (1)
透明化してガラス化する際に、鉛直軸回りに回転される
出発母材の端部を出発母材用支持棒によって係合・支持
するガラス母材の支持方法において、上記出発母材用支
持棒と出発母材との係合・支持部分を冷却ガスにより冷
却しつつ係合・支持することを特徴とするガラス母材の
支持方法。 ２）ガラス母材製造時に鉛直軸回りに回転される出発母
材の端部を出発母材用支持棒の端部に形成した係止穴に
係合させて係合支持するガラス母材の支持構造において
、上記出発母材用支持棒の軸方向に貫通すると共に上記
支持棒の係止穴に連通する冷却ガス流路を出発母材用支
持棒に設けたことを特徴とするガラス母材の支持構造。 ３）請求項２記載のガラス母材の支持構造において、ガ
ス流通路を形成した出発母材用支持棒に係合・支持され
る出発母材の上端部分に上記ガス流通路と連通するガス
流通路を形成したことを特徴とするガラス母材の支持構
造。[Claims] 1) When glass particles are deposited around the starting base material and then heated to make it transparent and vitrified, the end of the starting base material that is rotated around a vertical axis is used as a support for the starting base material. The method for supporting a glass base material by engaging and supporting the glass base material with a rod is characterized in that the engaging and supporting portion of the starting base material support rod and the starting base material is engaged and supported while being cooled by cooling gas. How to support glass base material. 2) Supporting the glass base material by engaging and supporting the end of the starting base material, which is rotated around a vertical axis during the production of the glass base material, with a locking hole formed at the end of the support rod for the starting base material. The structure of the glass base material is characterized in that the starting base material support rod is provided with a cooling gas passage that passes through the starting base material support rod in the axial direction and communicates with the locking hole of the support rod. Support structure. 3) In the support structure for a glass preform according to claim 2, a gas flow communicating with the gas flow passage is provided at the upper end portion of the starting base material that is engaged with and supported by the support rod for the starting base material forming the gas flow passage. A support structure of a glass base material characterized by forming channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63314956A JP2683757B2 (en) | 1988-12-15 | 1988-12-15 | Glass base material support method and support structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63314956A JP2683757B2 (en) | 1988-12-15 | 1988-12-15 | Glass base material support method and support structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02160636A true JPH02160636A (en) | 1990-06-20 |
| JP2683757B2 JP2683757B2 (en) | 1997-12-03 |
Family
ID=18059689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63314956A Expired - Lifetime JP2683757B2 (en) | 1988-12-15 | 1988-12-15 | Glass base material support method and support structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2683757B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0519468A2 (en) * | 1991-06-19 | 1992-12-23 | Sumitomo Electric Industries, Limited | Apparatus for supporting article in heating furnace |
| EP0628521A1 (en) * | 1993-06-08 | 1994-12-14 | Sumitomo Electric Industries, Ltd | Apparatus for vitrifying soot preform for optical fiber |
| US5417399A (en) * | 1991-06-19 | 1995-05-23 | Sumitomo Electric Industries, Ltd. | Apparatus for supporting article in heating furnace |
| EP0770583A1 (en) * | 1992-07-09 | 1997-05-02 | Sumitomo Electric Industries, Ltd | Method for drawing glass proform for optical fiber |
| US5674305A (en) * | 1993-02-22 | 1997-10-07 | Sumitomo Electric Industries, Ltd. | Method for flame abrasion of glass preform |
| EP1106584A2 (en) * | 1999-12-01 | 2001-06-13 | Shin-Etsu Chemical Co., Ltd. | Method and apparatus for manufacturing a preform for an optical fibre |
| EP1108689A2 (en) * | 1999-12-13 | 2001-06-20 | Lucent Technologies Inc. | Process for heat treating a silica glass overcladding tube |
| EP1110918A2 (en) * | 1999-12-22 | 2001-06-27 | Samsung Electronics Co., Ltd. | Apparatus and method for sintering an over-jacketing sol-gel derived glass tube for an optical fiber preform |
| JP2001261361A (en) * | 2000-03-21 | 2001-09-26 | Furukawa Electric Co Ltd:The | Supporter for hanging down preform for optical fiber |
| JP2006056755A (en) * | 2004-08-23 | 2006-03-02 | Furukawa Electric Co Ltd:The | Method for producing optical fiber preform |
| CN106949240A (en) * | 2017-05-24 | 2017-07-14 | 久智光电子材料科技有限公司 | A kind of quartz is rod fixed and sealed device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186436A (en) * | 1984-10-05 | 1986-05-01 | Sumitomo Electric Ind Ltd | Production of parent material for optical fiber |
-
1988
- 1988-12-15 JP JP63314956A patent/JP2683757B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186436A (en) * | 1984-10-05 | 1986-05-01 | Sumitomo Electric Ind Ltd | Production of parent material for optical fiber |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5417399A (en) * | 1991-06-19 | 1995-05-23 | Sumitomo Electric Industries, Ltd. | Apparatus for supporting article in heating furnace |
| EP0519468A2 (en) * | 1991-06-19 | 1992-12-23 | Sumitomo Electric Industries, Limited | Apparatus for supporting article in heating furnace |
| EP0770583A1 (en) * | 1992-07-09 | 1997-05-02 | Sumitomo Electric Industries, Ltd | Method for drawing glass proform for optical fiber |
| US5674306A (en) * | 1992-07-09 | 1997-10-07 | Sumitomo Electric Industries, Ltd. | Method and apparatus for drawing glass preform for optical fiber |
| US5788734A (en) * | 1992-07-09 | 1998-08-04 | Sumitomo Electric Industries, Ltd. | Method for drawing glass preform for optical fiber |
| US5674305A (en) * | 1993-02-22 | 1997-10-07 | Sumitomo Electric Industries, Ltd. | Method for flame abrasion of glass preform |
| EP0628521A1 (en) * | 1993-06-08 | 1994-12-14 | Sumitomo Electric Industries, Ltd | Apparatus for vitrifying soot preform for optical fiber |
| US5513983A (en) * | 1993-06-08 | 1996-05-07 | Sumitomo Electric Industries, Inc. | Apparatus for vitrifying soot preform for optical fiber |
| EP1106584A2 (en) * | 1999-12-01 | 2001-06-13 | Shin-Etsu Chemical Co., Ltd. | Method and apparatus for manufacturing a preform for an optical fibre |
| EP1106584A3 (en) * | 1999-12-01 | 2001-08-08 | Shin-Etsu Chemical Co., Ltd. | Method and apparatus for manufacturing a preform for an optical fibre |
| EP1108689A3 (en) * | 1999-12-13 | 2002-06-19 | Lucent Technologies Inc. | Process for heat treating a silica glass overcladding tube |
| EP1108689A2 (en) * | 1999-12-13 | 2001-06-20 | Lucent Technologies Inc. | Process for heat treating a silica glass overcladding tube |
| EP1110918A2 (en) * | 1999-12-22 | 2001-06-27 | Samsung Electronics Co., Ltd. | Apparatus and method for sintering an over-jacketing sol-gel derived glass tube for an optical fiber preform |
| EP1110918A3 (en) * | 1999-12-22 | 2002-06-05 | Samsung Electronics Co., Ltd. | Apparatus and method for sintering an over-jacketing sol-gel derived glass tube for an optical fiber preform |
| US6510711B2 (en) | 1999-12-22 | 2003-01-28 | Samsung Electronics Co., Ltd | Apparatus and method for sintering a sol-gel tube using a furnace having a rotating cap |
| JP2001261361A (en) * | 2000-03-21 | 2001-09-26 | Furukawa Electric Co Ltd:The | Supporter for hanging down preform for optical fiber |
| JP4615085B2 (en) * | 2000-03-21 | 2011-01-19 | 古河電気工業株式会社 | Optical fiber preform suspension support device |
| JP2006056755A (en) * | 2004-08-23 | 2006-03-02 | Furukawa Electric Co Ltd:The | Method for producing optical fiber preform |
| JP4609839B2 (en) * | 2004-08-23 | 2011-01-12 | 古河電気工業株式会社 | Optical fiber preform manufacturing method |
| CN106949240A (en) * | 2017-05-24 | 2017-07-14 | 久智光电子材料科技有限公司 | A kind of quartz is rod fixed and sealed device |
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| Publication number | Publication date |
|---|---|
| JP2683757B2 (en) | 1997-12-03 |
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