CN104891827A - Process for optical fiber drawing and primary coating - Google Patents
Process for optical fiber drawing and primary coating Download PDFInfo
- Publication number
- CN104891827A CN104891827A CN201510283549.0A CN201510283549A CN104891827A CN 104891827 A CN104891827 A CN 104891827A CN 201510283549 A CN201510283549 A CN 201510283549A CN 104891827 A CN104891827 A CN 104891827A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- coating
- optical fibers
- primary coating
- coating operation
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention discloses a process for optical fiber drawing and primary coating. The process comprises the following steps in sequence: (1) putting a precast rod into a heating furnace to soften the precast rod; and (2) drawing out optical fibers from the top end of the precast rod under the traction of winding to obtain a volumed optical fiber product, wherein the step (2) also comprises a coating process carried out synchronously with the step (2), and in the coating process, a coating container and curing equipment are arranged on a traction movement line of the optical fibers to ensure that the optical fibers drawn out from the top end of the precast rod pass through the coating container and the curing equipment respectively so as to finish dip dyeing of the primary coating and curing on surfaces of the optical fibers, and the coating container is a guide pipe coating device. The process disclosed by the invention is beneficial for improving the optical fiber production efficiency, the optical fiber surface coating quality and the optical fiber quality.
Description
Technical field
The present invention relates to a kind of communication cable making method, particularly relate to a kind of drawing optical fibers and primary coating technique.
Background technology
Photoconductive fiber, is called for short optical fiber, the light conduction instrument of the total reflection principle transmission in the fiber that to be a kind of light make at glass or plastics.Fine fibre-optic package, in plastics jacket, makes it to bend and is unlikely to fracture.The transmitter of one end of usual optical fiber uses photodiode or beam of laser that light pulse is sent to optical fiber, and the receiving equipment of the other end of optical fiber uses photosensitive components to detect pulse.The cable comprising optical fiber is called optical cable.Because light is more much lower in the loss of electric wire conduction than electricity in fibre-optic transmission loss, more because main production raw material is silicon, standing stock are very big, more easily exploit, so low price, impel optical fiber to be used as the media of information of long distance.Along with further optimization or the development in optic fibre manufacture process field and producing apparatus field, existing fiber price reduces further, and optical fiber improves rapidly at the total proportion of signal and communication cable.
Rod-in-tube technique drawing optical fiber is still in present stage the important method that drawing optical fibers technique the most often adopts.Rod-in-tube technique drawing optical fiber technique has two kinds: one to be melting all-in-one-piece core/bag prefabricated rods directly heated to soften in High Temperature Furnaces Heating Apparatus to be drawn into optical fiber, as the preform utilizing MCVD method to produce; Two is on sandwich layer glass barred body, overlap surrounding layer Glass tubing send in process furnace and be smelted into one, then sends in High Temperature Furnaces Heating Apparatus to heat and be softeningly drawn into optical fiber, the prefabricated rods that the fiber core layer rod produced as two step method and cladding are made.Further optimization rod-in-tube technique drawing optical fiber technique, can improve existing fiber quality product undoubtedly further, improve the production efficiency of light product.
Summary of the invention
For above-mentioned further optimization rod-in-tube technique drawing optical fiber technique, existing fiber quality product can be improved undoubtedly further, improve the problem of the production efficiency of light product, the invention provides a kind of drawing optical fibers and primary coating technique.
For the problems referred to above, a kind of drawing optical fibers provided by the invention and primary coating technique solve problem by following technical essential: a kind of drawing optical fibers and primary coating technique, comprise the following steps that order is carried out:
1), by prefabricated rods be placed in process furnace, prefabricated rods is softened;
2), under the tractive force of winding, optical fiber is drawn by the top of prefabricated rods, obtain the fiber optic articles of rolling, in step 2) in, also comprise and step 2) the coating operation of synchronously carrying out, described coating operation is arrange coating container and curing apparatus on the tethered sliding route of optical fiber, makes the optical fiber of being drawn by prefabricated rods top be each passed through coating container and curing apparatus, complete the dip-dye of primary coating and the solidification at optical fiber surface, and described coating container is guiding tube applicator.
Concrete, in above operation, the coating operation in fiber manufacturing process is blended in drawing process, makes to obtain primary coating on the surface of the optical fiber in the process of drawing optical fibers rolling.The heat that above operation not only can utilize process furnace to produce is warm as the coating of optical fiber, to save the energy expenditure in fiber manufacturing process; Exposed optical fiber can be reduced in production technique because contact with air or other materials and affect bright and clean surface quality simultaneously, cause surface treatment strict in subsequent coated process or cause bad coating quality; The process advan of above compound is in the production efficiency of optical fiber simultaneously; The coating method of above guiding tube applicator is arranged simultaneously, can obtain uniform primary coating in the circumference of optical fiber, also has simultaneously on optical fiber, does not produce the advantage that transverse pressure difference affects the protection optical fiber properties such as fiber cross-sections shape.
Further technical scheme is:
As a kind of concrete coating scheme, the coating liquid that described coating operation adopts is ethylene-vinyl acetate copolymer, and application temperature is between 47 DEG C-53 DEG C.
For making the optical fiber at furnace outlet place can enter coating operation faster, to improve the surface quality of optical fiber production efficiency and guarantee optical fiber, described coating operation is arranged on the exit end of process furnace, before coating operation, be also provided with refrigerating work procedure.Above refrigerating work procedure is realized by recirculated cooling water and by the method for drying plant.
For avoiding quenching, optical fiber quality and performance are had an impact, further, described refrigerating work procedure point multistep is carried out, namely refrigerating work procedure is that order arranges the cooling environment that multiple temperature reduces gradually on the tethered sliding route of optical fiber, makes optical fiber successively by entering into coating operation after above cooling environment.The above object is intended to the cooling rate controlling optical fiber.
For the benefit of coating quality, is provided with protection of inert gas atmosphere in described curing apparatus.
The present invention has following beneficial effect:
In the present invention, the coating operation in fiber manufacturing process is blended in drawing process, makes to obtain primary coating on the surface of the optical fiber in the process of drawing optical fibers rolling.The heat that above operation not only can utilize process furnace to produce is warm as the coating of optical fiber, to save the energy expenditure in fiber manufacturing process; Exposed optical fiber can be reduced in production technique because contact with air or other materials and affect bright and clean surface quality simultaneously, cause surface treatment strict in subsequent coated process or cause bad coating quality; The process advan of above compound is in the production efficiency of optical fiber simultaneously; The coating method of above guiding tube applicator is arranged simultaneously, can obtain uniform primary coating in the circumference of optical fiber, also has simultaneously on optical fiber, does not produce the advantage that transverse pressure difference affects the protection optical fiber properties such as fiber cross-sections shape.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
A kind of drawing optical fibers and primary coating technique, comprise the following steps that order is carried out:
1), by prefabricated rods be placed in process furnace, prefabricated rods is softened;
2), under the tractive force of winding, optical fiber is drawn by the top of prefabricated rods, obtain the fiber optic articles of rolling, in step 2) in, also comprise and step 2) the coating operation of synchronously carrying out, described coating operation is arrange coating container and curing apparatus on the tethered sliding route of optical fiber, makes the optical fiber of being drawn by prefabricated rods top be each passed through coating container and curing apparatus, complete the dip-dye of primary coating and the solidification at optical fiber surface, and described coating container is guiding tube applicator.
In the present embodiment, the coating operation in fiber manufacturing process is blended in drawing process, makes to obtain primary coating on the surface of the optical fiber in the process of drawing optical fibers rolling.The heat that above operation not only can utilize process furnace to produce is warm as the coating of optical fiber, to save the energy expenditure in fiber manufacturing process; Exposed optical fiber can be reduced in production technique because contact with air or other materials and affect bright and clean surface quality simultaneously, cause surface treatment strict in subsequent coated process or cause bad coating quality; The process advan of above compound is in the production efficiency of optical fiber simultaneously; The coating method of above guiding tube applicator is arranged simultaneously, can obtain uniform primary coating in the circumference of optical fiber, also has simultaneously on optical fiber, does not produce the advantage that transverse pressure difference affects the protection optical fiber properties such as fiber cross-sections shape.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, and as a kind of concrete coating scheme, the coating liquid that described coating operation adopts is ethylene-vinyl acetate copolymer, and application temperature is between 47 DEG C-53 DEG C.
For making the optical fiber at furnace outlet place can enter coating operation faster, to improve the surface quality of optical fiber production efficiency and guarantee optical fiber, described coating operation is arranged on the exit end of process furnace, before coating operation, be also provided with refrigerating work procedure.Above refrigerating work procedure is realized by recirculated cooling water and by the method for drying plant.
For avoiding quenching, optical fiber quality and performance are had an impact, further, described refrigerating work procedure point multistep is carried out, namely refrigerating work procedure is that order arranges the cooling environment that multiple temperature reduces gradually on the tethered sliding route of optical fiber, makes optical fiber successively by entering into coating operation after above cooling environment.The above object is intended to the cooling rate controlling optical fiber.
Embodiment 3:
The present embodiment is further qualified on the basis of any one embodiment above, and for the benefit of coating quality, is provided with protection of inert gas atmosphere in described curing apparatus.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (5)
1. drawing optical fibers and a primary coating technique, comprises the following steps that order is carried out:
1), by prefabricated rods be placed in process furnace, prefabricated rods is softened;
2), under the tractive force of winding, optical fiber is drawn by the top of prefabricated rods, obtain the fiber optic articles of rolling, it is characterized in that, in step 2) in, also comprise and step 2) the coating operation of synchronously carrying out, described coating operation is arrange coating container and curing apparatus on the tethered sliding route of optical fiber, make the optical fiber of being drawn by prefabricated rods top be each passed through coating container and curing apparatus, complete the dip-dye of primary coating and the solidification at optical fiber surface, and described coating container is guiding tube applicator.
2. a kind of drawing optical fibers according to claim 1 and primary coating technique, is characterized in that, the coating liquid that described coating operation adopts is ethylene-vinyl acetate copolymer, and application temperature is between 47 DEG C-53 DEG C.
3. a kind of drawing optical fibers according to claim 1 and primary coating technique, is characterized in that, described coating operation is arranged on the exit end of process furnace, before coating operation, be also provided with refrigerating work procedure.
4. a kind of drawing optical fibers according to claim 3 and primary coating technique, it is characterized in that, described refrigerating work procedure point multistep is carried out, namely refrigerating work procedure is that order arranges the cooling environment that multiple temperature reduces gradually on the tethered sliding route of optical fiber, makes optical fiber successively by entering into coating operation after above cooling environment.
5. according to a kind of drawing optical fibers in Claims 1-4 described in any one and primary coating technique, it is characterized in that, in described curing apparatus, be provided with protection of inert gas atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283549.0A CN104891827A (en) | 2015-05-29 | 2015-05-29 | Process for optical fiber drawing and primary coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283549.0A CN104891827A (en) | 2015-05-29 | 2015-05-29 | Process for optical fiber drawing and primary coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104891827A true CN104891827A (en) | 2015-09-09 |
Family
ID=54024861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510283549.0A Pending CN104891827A (en) | 2015-05-29 | 2015-05-29 | Process for optical fiber drawing and primary coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104891827A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609846A (en) * | 2016-03-31 | 2018-10-02 | 杭州富通通信技术股份有限公司 | Drawing optical fibers technique |
| CN117984546A (en) * | 2024-04-07 | 2024-05-07 | 特恩驰(南京)光纤有限公司 | High-speed drawing method for small-diameter optical fiber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193398A (en) * | 2013-04-28 | 2013-07-10 | 成都富通光通信技术有限公司 | Preparation method of high-temperature-resistant optical fiber by carrying out high-speed drawing forming once |
-
2015
- 2015-05-29 CN CN201510283549.0A patent/CN104891827A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193398A (en) * | 2013-04-28 | 2013-07-10 | 成都富通光通信技术有限公司 | Preparation method of high-temperature-resistant optical fiber by carrying out high-speed drawing forming once |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609846A (en) * | 2016-03-31 | 2018-10-02 | 杭州富通通信技术股份有限公司 | Drawing optical fibers technique |
| CN108609846B (en) * | 2016-03-31 | 2020-11-13 | 杭州富通通信技术股份有限公司 | Optical fiber drawing process |
| CN117984546A (en) * | 2024-04-07 | 2024-05-07 | 特恩驰(南京)光纤有限公司 | High-speed drawing method for small-diameter optical fiber |
| CN117984546B (en) * | 2024-04-07 | 2024-06-18 | 特恩驰(南京)光纤有限公司 | High-speed drawing method for small-diameter optical fiber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101767930B (en) | High-speed wire drawing device for optical fiber production process and high-speed wire drawing method thereof | |
| CN103193398B (en) | A kind of preparation method of high-speed wire-drawing formed high-temperature resistant optical fiber | |
| JP6048031B2 (en) | Optical fiber manufacturing method | |
| JP4990429B2 (en) | Cooling method of optical fiber during drawing | |
| CN101852886A (en) | High anti-damage energy transfer optical fiber and manufacturing method | |
| CN101726792B (en) | High-temperature resistant optical fiber and method for manufacturing same | |
| CN102998743B (en) | Low-loss single-mode optical fiber applied to long-distance communication transmission and manufacture method thereof | |
| CN103941331A (en) | Polyimide coated optical fiber and machining process thereof | |
| CN102442774B (en) | Method for manufacturing ultra-low birefringence optical fibre and rotary stretching tower | |
| CN104597560A (en) | Small outer diameter and low loss fiber for air blowing micro cable and manufacture method thereof | |
| CN104891827A (en) | Process for optical fiber drawing and primary coating | |
| CN112645584A (en) | Laser drawing tower for drawing special optical fiber | |
| CN104609723A (en) | Preparation method of chalcogenide glass tapered fibers | |
| CN201713432U (en) | High-speed fiber drawing equipment during fiber production process | |
| CN105158843A (en) | Thin-diameter bending-resistant optical fiber and preparation method thereof | |
| CN102206040B (en) | Horizontal extension device of optical fiber preform | |
| CN103699159A (en) | Automatic control device and control method for ultraviolet light intensity of optical fiber | |
| CN204661554U (en) | A kind of optical fiber secondary coating equipment | |
| CN204661549U (en) | One is locked optical fiber production device | |
| CN104944800A (en) | Optical fiber molding method | |
| CN104944761A (en) | Optical fiber production method with characteristic of optical fiber cable manufacturing quality benefiting | |
| CN104876453A (en) | Optical fiber drawing method using prefabricated rod | |
| CN104891828A (en) | Coating system beneficial to thickness uniformity of coating | |
| CN103896484A (en) | Method and device for fabricating optical fiber taper zone | |
| CN104944802A (en) | Tight buffered fiber production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |
|
| RJ01 | Rejection of invention patent application after publication |