CN2493618Y - Optical fibre prefabrication bar with extensible sleeve - Google Patents
Optical fibre prefabrication bar with extensible sleeve Download PDFInfo
- Publication number
- CN2493618Y CN2493618Y CN 01249975 CN01249975U CN2493618Y CN 2493618 Y CN2493618 Y CN 2493618Y CN 01249975 CN01249975 CN 01249975 CN 01249975 U CN01249975 U CN 01249975U CN 2493618 Y CN2493618 Y CN 2493618Y
- Authority
- CN
- China
- Prior art keywords
- casing tube
- quartz
- socket tube
- quartz socket
- tube
- 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.)
- Expired - Lifetime
Links
Images
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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
- C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
Landscapes
- Engineering & Computer Science (AREA)
- 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)
- Glass Melting And Manufacturing (AREA)
Abstract
The utility model discloses a fiber prefabrication stick which has an extension casing tube. The utility model is consisting of a quartz casing tube and an extension tube. The utility model is characterized in that the quartz casing tube is connected with the extension tube through the extension casing tube, and the length of the extension tube is between 60mm and 70mm. After the inside diameter is compared with the inside diameter of the quartz casing tube, the positive and negative error is 8mm; After the outer diameter is compared with the outer diameter of the quartz casing tube, the positive and negative error is 2mm. the extension casing tube is respectively connected with the quartz casing tube and the extension casing tube after intenerated with high temperature. The fiber performance parameter which is formed by the fiber prefabrication stick when the wiredrawing approaches the after body is improved, the quality of products and the qualified rate are enhanced, the waste of high purity and high quality quartz casing tube is reduced and the raw material is saved. Meanwhile, the phenomenon of stopping up and pulling the marble furnace is reduced because the joint point of the extension casing tube and the quartz casing tube breaks and the cost of production is reduced.
Description
The utility model relates to a kind of preform, and specifically a kind of band prolongs the telescopic preform.
At present, the main graphite furnace that adopts heats in the drawing optical fibers process, and there is the sealing gland problem in graphite furnace, therefore in order effectively highly purified preform to be drawn into optical fiber, usually all will be at the prolongation pipe of termination the preceding paragraph thin-walled of quartz socket tube, and the other end is pulled into the streamline cone.In actual production process, owing to differ greatly along the thickness of long tube and the thickness of quartz socket tube, when the afterbody of quartz socket tube enters the high temperature hot-zone of fiber drawing furnace, because it is violent to prolong the pipe distortion, produce huge stress, usually easily cause the seam crossing fracture that prolongs pipe and quartz socket tube, and make remaining quartz socket tube fall into fiber drawing furnace and can't ordinary production; Sometimes can not make the seam crossing fracture that prolongs pipe and quartz socket tube though produce huge stress, can reduce the optical fiber property parameter, influence quality product.Therefore usually when prefabricated rods also remains certain-length, the length that is approximately the 5%-10% of whole prefabricated rods just stops wire drawing, and it taking-up is discarded, and so just causes the waste of a large amount of quartz socket tubes.
Goal of the invention of the present utility model is exactly for the deficiency at currently available products, provides a kind of and can improve the optical fiber property parameter, and the band that reduces raw materials cost prolongs the telescopic preform to remedy the said products deficiency.
The technical solution of the utility model is achieved in that it is by quartz socket tube with prolong pipe and form, it is characterized in that: between quartz socket tube and prolongation pipe, newly be connected to the prolongation sleeve pipe, prolonging telescopic length is 60mm-700mm, internal diameter is 8mm for comparing positive negative error with quartz socket tube, external diameter is compared positive negative error with quartz socket tube be 2mm, it is identical with quartz socket tube or close prolonging the telescopic wall thickness, prolongs sleeve pipe behind hot mastication, bonding with quartz socket tube and prolongation pipe respectively.Quartz socket tube also can be the stuffed quartz rod.
Best-of-breed technology scheme of the present utility model is: prolonging telescopic length is 90mm, and internal diameter is identical with quartz socket tube with external diameter.
The utility model can improve preform in wire drawing formed optical fiber property parameter during near afterbody, as cutoff wavelength, homogeneity etc., improve the quality and the qualification rate of product, can reduce the waste of high purity, high quality quartz socket tube, save material, also cause the phenomenon of stifled fiber drawing furnace to take place with the fracture of quartz socket tube seam crossing simultaneously, reduce production costs to reduce because of prolonging pipe.
Below in conjunction with accompanying drawing the utility model is described further;
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is another example structure synoptic diagram of the present utility model;
1, quartz socket tube 2, prolongation pipe 3, prolongation sleeve pipe
As shown in Figure 1, the utility model is made up of quartz socket tube 1 and prolongation pipe 2, it is characterized in that: newly be connected to prolongation sleeve pipe 3 between quartz socket tube 1 and prolongation pipe 2, the length of prolongation sleeve pipe 3 is 90mm, internal diameter is identical with quartz socket tube with external diameter, and wall thickness is identical with quartz socket tube or close; Prolong sleeve pipe 3 behind hot mastication, bonding with quartz socket tube and prolongation pipe 2 respectively.
As shown in Figure 2, the utility model also can and prolong pipe 2 by stuffed quartz excellent 1 be formed, and newly is connected to prolong rod 3 between stuffed quartz excellent 1 and prolongation pipe 2, and the length of prolongation excellent 3 is 90mm, and diameter is identical with stuffed quartz rod 1; Prolong rod 3 behind hot mastication, bonding with stuffed quartz rod 1 and prolongation pipe 2 respectively.
Claims (4)
1, a kind of band prolongs the telescopic preform, it is made up of quartz socket tube and prolongation pipe, it is characterized in that: between quartz socket tube and prolongation pipe, newly be connected to the prolongation sleeve pipe, prolonging telescopic length is 60mm-700mm, internal diameter is compared positive negative error with quartz socket tube be 8mm, external diameter is compared positive negative error with quartz socket tube be 2mm, prolongs sleeve pipe behind hot mastication, bonding with quartz socket tube and prolongation pipe respectively.
2, a kind of band as claimed in claim 1 prolongs the telescopic preform, it is characterized in that: prolonging the telescopic optimum length is 90mm, and best internal diameter is identical with quartz socket tube, and preferred outside diameter is identical with quartz socket tube.
3, a kind of band as claimed in claim 1 or 2 prolongs the telescopic preform, it is characterized in that: prolong the telescopic wall thickness for identical with quartz socket tube or close.
4, a kind of band as claimed in claim 1 prolongs the telescopic preform, and it is characterized in that: quartz socket tube also can be the stuffed quartz rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249975 CN2493618Y (en) | 2001-06-29 | 2001-06-29 | Optical fibre prefabrication bar with extensible sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01249975 CN2493618Y (en) | 2001-06-29 | 2001-06-29 | Optical fibre prefabrication bar with extensible sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2493618Y true CN2493618Y (en) | 2002-05-29 |
Family
ID=33660229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01249975 Expired - Lifetime CN2493618Y (en) | 2001-06-29 | 2001-06-29 | Optical fibre prefabrication bar with extensible sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2493618Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730959A (en) * | 2012-06-06 | 2012-10-17 | 烽火通信科技股份有限公司 | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) |
| WO2018145519A1 (en) * | 2017-02-07 | 2018-08-16 | 通鼎互联信息股份有限公司 | Automatic drawing apparatus for optical fiber preform and automatic drawing method |
-
2001
- 2001-06-29 CN CN 01249975 patent/CN2493618Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730959A (en) * | 2012-06-06 | 2012-10-17 | 烽火通信科技股份有限公司 | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) |
| CN102730959B (en) * | 2012-06-06 | 2014-12-31 | 烽火通信科技股份有限公司 | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) |
| WO2018145519A1 (en) * | 2017-02-07 | 2018-08-16 | 通鼎互联信息股份有限公司 | Automatic drawing apparatus for optical fiber preform and automatic drawing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102285758B (en) | Production method for large-size optical fiber prefabricated rod | |
| CN101328012A (en) | Large size rock quartz optical fibre prefabricated bar manufacturing method | |
| CN203558970U (en) | Clamping fitting device for optical fiber preform | |
| CN102303950B (en) | Method for drawing optical fibers by using large-size optical fiber prefabricated rod and auxiliary device thereof | |
| CN101328013A (en) | Method for drawing optical fibre by using large size optical fibre prefabricated bar | |
| CN103880278B (en) | The preparation method of a kind of optical fiber outsourcing quartz capillary prefabricated rods and continuous induction melting furnace equipment | |
| CN2493618Y (en) | Optical fibre prefabrication bar with extensible sleeve | |
| CN102757179A (en) | Method for preparing large-size optical fiber preform | |
| EP1990324A3 (en) | Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber preforms | |
| WO2020155707A1 (en) | Optical fiber preform rod of large size and low loss and preparation method therefor | |
| JP2008280240A5 (en) | ||
| CN102815864A (en) | Preparation method of photonic crystal optical fiber | |
| CN113213750B (en) | Special optical fiber perform sealing device | |
| CN204651101U (en) | The nonmetal band longitudinal tubing mould of a kind of optical cable | |
| WO2008061446A1 (en) | A hang-type composite insulator | |
| CN101481209B (en) | Method for extending service life of graphite member of optical fiber preform bar stretching furnace | |
| CN106273334B (en) | A kind of crowded pipe mold for reinforcing glass fiber tubing intensity | |
| CN214004430U (en) | Preparation device of optical fiber perform | |
| CN103553324A (en) | Wiredrawing method and wiredrawing device of optical fiber prefabricating rod with fluctuated outer diameter | |
| CN203360262U (en) | Continuous melting furnace for producing elliptical quartz tubes | |
| CN208604020U (en) | A kind of degasser of preform | |
| CN206599516U (en) | A kind of RIC rods sleeve pipe falls wimble device | |
| CN201952354U (en) | Optical fiber preform | |
| CN202753379U (en) | Multi-cavity sealing rubber strip extruding die | |
| CN202227765U (en) | Internal-cavity spiral-line structure for non-corrosion dust-collection energy-conservation chimney |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110629 Granted publication date: 20020529 |