CN106483614A - A kind of high heat resistant type flexible optical cable and preparation method thereof - Google Patents
A kind of high heat resistant type flexible optical cable and preparation method thereof Download PDFInfo
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- CN106483614A CN106483614A CN201610910290.2A CN201610910290A CN106483614A CN 106483614 A CN106483614 A CN 106483614A CN 201610910290 A CN201610910290 A CN 201610910290A CN 106483614 A CN106483614 A CN 106483614A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of high heat resistant type flexible optical cable and preparation method thereof, this high heat resistant type flexible optical cable includes surface layer, thermal protection enhancement layer, middle casing, screen layer, inner cladding, six layers of core, surface layer is made up of the methyl vinyl silicone rubber being solidified with fire retardant, thermal protection enhancement layer is formed using graphitized carbon fibre braiding, middle casing is made up of ENB ethylene propylene diene rubber, screen layer is carbon film, inner cladding is titanium dioxide silicon substrate light, and core is titanium dioxide silicon substrate glass of high refractive index；Titanium dioxide silicon substrate light includes 85 92 parts of silicon dioxide, 23 parts of sulfur dioxide, 23 parts of carbon dioxide, 68 parts of boron oxide by molecular amounts；Titanium dioxide silicon substrate glass of high refractive index includes 85 92 parts of silicon dioxide, 34 parts of phosphorus pentoxide, 8 10 parts of germanium oxide by molecular amounts.Insulating properties of the present invention is strong, shield effectiveness is good, minimum bending radius is little, high temperature resistant, aging resistance, long service life.
Description
Technical field
The present invention relates to optical element field, more particularly, to a kind of high heat resistant type flexible optical cable and preparation method thereof.
Background technology
Optical cable (optical fiber cable) is in order to meet the performance specification of optics, machinery or environment and to manufacture,
It is by the use of one or more optical fiber being placed in cladding sheath as transmission medium and the communication that can use individually or in groups
Cable-assembly.Optical cable is mainly made up of optical fiberss (the thin glass fiber as hair) and plastic protective sleeve pipe and plastic peel,
The metals such as gold, silver, copper aluminum are not had, general non-recovery is worth in optical cable.Optical cable is a number of optical fiber according to certain way group
The stranding heart, is surrounded by outward sheath, and the also cladding outer jacket having, in order to realize a kind of communication line of optical signal transmission.I.e.：By optical fiber
The cable that (optical transmission carrier) is formed through certain technique.The basic structure of optical cable is usually by cable core, strengthens steel wire, fills out
Fill a few part such as thing and sheath composition, according further to needing the also component such as waterproof layer, cushion, insulated metal wire.
Content of the invention
For solving drawbacks described above present in prior art, the present invention is intended to provide a kind of insulating properties is strong, shield effectiveness is good,
Minimum bending radius is little, high temperature resistant, the high heat resistant type flexible optical cable of aging resistance, long service life and its manufacture method.
To achieve these goals, the present invention employs the following technical solutions：A kind of manufacturer of high heat resistant type flexible optical cable
Method, comprises the following steps：
1) preparation of inner cladding base material
1. press the raw material that molecular number gauge prepares following number：Silicon fluoride. 85-92 part, sulfur hexafluoride 2-3 part, tetrafluoro
Change two carbon 2-3 parts, boron oxide 6-8 part, enough purity is not less than 99.99% high purity oxygen gas, enough chlorine and appropriate standard take off
Infusion；
2. prepare following equipment：It is provided with the glass work lathe of quartz ampoule, oxyhydrogen flame generating meanss, flask, air shooter
Road, thermocouple and gaseous mass effusion meter；
3. Silicon fluoride., sulfur hexafluoride, tetrafluoride two carbon, boron oxide are contained in flask, using conventional criteria Fang Huajin
Row evaporation process, obtains full conjunction steam；
4. the high purity oxygen gas 1. being prepared with step as carrier gas, the full conjunction steam that 3. blend step obtains, by standard mode plus
Enter appropriate standard deaeration agent, the gas transmission pipeline being provided by gas mass flow gauge is delivered to the quartz ampoule of glass work lathe
Interior, quartz ampoule is rotated with the rotating speed of 30r/min-40r/min on glass work lathe；
5. light oxyhydrogen flame generating meanss, move axially quartz ampoule, make the oxyhydrogen flame generating meanss can uniform heated quarty tube
Body, thermocouple is fixed on heating region in the quartz ampoule above oxyhydrogen flame generating meanss, monitors this regional temperature；
6. pass through to monitor heating region temperature, adjust the fire of oxyhydrogen flame generating meanss when being heated to 1400 DEG C -1600 DEG C
Flame exports, and keeping temperature is stablized in 1400 DEG C of -1600 DEG C of intervals；
7. after the nature of glass deposits to 5-8mm in quartz ampoule, that is, obtain required inner cladding base material；
2) preparation of heartwood base material
1. press the raw material that molecular number gauge prepares following number：Silicon fluoride. 85-92 part, phosphorus oxychloride 3-4 part, tetrachloro
Change germanium 8-10 part, enough purity is not less than 99.99% high purity oxygen gas, enough chlorine and appropriate standard deaeration agent；
2. contain Silicon fluoride., phosphorus oxychloride, germanium tetrachloride in flask, be evaporated locating using conventional criteria sideization
Reason, obtains full conjunction steam；
3. the high purity oxygen gas 1. being prepared with step as carrier gas, the full conjunction steam that 3. blend step obtains, by standard mode plus
Enter appropriate standard deaeration agent, the gas transmission pipeline being provided by gas mass flow gauge is delivered to the quartz ampoule of glass work lathe
Interior, quartz ampoule is rotated with the rotating speed of 30r/min-40r/min on glass work lathe；
4. light oxyhydrogen flame generating meanss, move axially quartz ampoule, make the oxyhydrogen flame generating meanss can uniform heated quarty tube
Body, thermocouple is fixed on heating region in the quartz ampoule above oxyhydrogen flame generating meanss, monitors this regional temperature；
5. pass through to monitor heating region temperature, adjust the fire of oxyhydrogen flame generating meanss when being heated to 1400 DEG C -1600 DEG C
Flame exports, and keeping temperature is stablized in 1400 DEG C of -1600 DEG C of intervals；
6. when in quartz ampoule, the nature of glass deposits to median pore radius no more than 5mm, that is, heartwood base material needed for obtaining；
3) preparation of solid glass bar stock
1. thermocouple is moved to above quartz ampoule corresponding outer surface vertical with oxyhydrogen flame generating meanss；
2. adjust the flame output of oxyhydrogen flame generating meanss when quartzy tube wall is heated to 1800 DEG C -1900 DEG C, keep
Temperature stabilization is in 1800 DEG C of -1900 DEG C of intervals；
3. when in quartz ampoule, nature of glass hot mastication is contracted to solid, that is, solid glass bar stock needed for obtaining；
4) preparation of optical fiber
1. adopting conventional criteria mode by 3) the solid glass bar stock that obtains is drawn into cellosilk；
2. in filament surface, one layer of carbon film of cladding is amassed by the heavy method of physical vapor, this layer of carbon film is screen layer；
3. required single mode or multimode fibre core will be made with screen layer cellosilk by standard method；
4. select ENB ethylene propylene diene rubber as raw material, be solidificated in screen layer cellosilk table by standard method
Face, this layer of ENB ethylene propylene diene rubber is required middle casing；
5) preparation of graphitized carbon fibre
1. ammonia, propane and acrylonitrile are synthesized by polyacrylonitrile resin by standard method；
2. the polyacrylonitrile resin that 1. step obtains is dissolved in the intermixture that polyethylene glycol oxide is with pure water, this intermixture
Interior polyethylene glycol oxide is 2.5-3: 7 with the volume ratio of pure water, obtains spinning solution；
3. the spinning solution that 2. step obtains is sprayed in coagulating bath by the spray orifice pressurization of aperture 0.05mm-0.08mm,
Pressure limit is 1.5bar-2bar, and shower nozzle and coagulation bath identity distance, from for 10mm-15mm, obtain polyacrylonitrile fibril；
4. the polyacrylonitrile fibril that 3. step obtains is pre-oxidized by standard method, obtained pre-oxidized fibers；
5. the pre-oxidized fibers that 4. step obtains are carried out charing process, described charing process be divided into front charing process and after
Charing process, 750 DEG C -800 DEG C of front charing process temperature, process time 5min-10min, 1500 DEG C of rear charing process temperature -
1600 DEG C, process time 5min-8min obtains carbon fiber；
6. the carbon fiber that 5. step obtains is put and carries out graphitization processing, will be positioned over 2400 DEG C of -2500 DEG C of rings
Under border, it is incubated 8s-12s；
7. silk, graphitized carbon fibre needed for acquisition are received；
6) preparation of optical cable
1. 5 are selected) graphitized carbon fibre that obtains is woven into net and is sleeved on middle casing surface, and this layer adds for thermal protection
Strong layer；
2. top layer encapsulating material is from the methyl vinyl silicone rubber being solidified with 5-8wt% flame retardant of magnesium hydroxide, solidification
Method is when preparing Methylethyl type silicone rubber by standard method, is directly added into 3-5wt% magnesium hydroxide in its raw material
Powder is simultaneously mixed homogeneously with other raw materials, due to the raw material of Methylethyl type silicone rubber have in preparation process certain
Scaling loss, in the final finished product methyl vinyl silicone rubber obtaining, the content of flame retardant of magnesium hydroxide is up to 5-8wt%；By this material
Be solidificated in thermal protection in the standard fashion and strengthen layer surface, form surface layer, that is, high heat resistant type flexible optical cable needed for obtaining.
The high heat resistant type flexible optical cable being produced according to said method, including surface layer, thermal protection enhancement layer, middle level set
Pipe, screen layer, inner cladding, six layers of core, wherein surface layer is by the methyl ethylene being solidified with 5-8wt% flame retardant of magnesium hydroxide
Silicone rubber is made, and thermal protection enhancement layer is formed using graphitized carbon fibre braiding, and middle casing is ENB ethylene propylene diene rubber system
Become, screen layer is carbon film, inner cladding is titanium dioxide silicon substrate light, core is titanium dioxide silicon substrate glass of high refractive index；
Wherein titanium dioxide silicon substrate light includes silicon dioxide 85-92 part, sulfur dioxide 2-3 part, titanium dioxide by molecular amounts
Carbon 2-3 part, boron oxide 6-8 part；Titanium dioxide silicon substrate glass of high refractive index includes silicon dioxide 85-92 part, five oxygen by molecular amounts
Change two phosphorus 3-4 parts, germanium oxide 8-10 part.
Compared with prior art, the present invention has advantages below：Extra skin-material from when have cured appropriate
Flame retardant of magnesium hydroxide, magnesium hydroxide is a kind of nontoxic fire retardant of New-type halide-free, discharges and combine water during by decomposes, inhales
Receive substantial amounts of latent heat, to reduce surface temperature in flame for the synthetic material that it is filled, have suppression polymer decompose and
The effect that produced fuel gas is cooled down is hence it is evident that improve the resistance to elevated temperatures of the present invention；ENB ethylene propylene diene rubber
Also there is extraordinary resistant to elevated temperatures ageing resistace, for conventional epoxy resin, ENB ethylene propylene diene rubber is more
Soft, flexible, also there is certain intensity so that optical fiber is less pliable；Graphitized fibre has high intensity high-flexibility,
Or optimal optical signal shielding material；The present invention additionally uses specific MCVD methods for optical fiber manufacture, and MCVD is a kind of conventional
High quality optical fiber manufacture method, the present invention improves the glass composition of core and inner cladding on its basis, compared to routine
Formula, its interior oxide is more, more complicated so that the refractive index of core is higher, inner cladding index of refraction is lower, also makes to make
Glass fibre be provided with higher pliability, can be bent without giving birth to stubble or fracture with less bending radius, with
When higher to the tolerance of high temperature, be also less susceptible to external light source or the interference of other signal, signal transmission quality is more steady
Fixed；Carbon is best shielding material in known conventional optical fiber shielding material, and the present invention is obtained using the method for physical vapour deposition (PVD)
The carbon film obtaining is strong, also finer and close compared to conventional carbon film, bright and clean with basal body binding force, and therefore the shield effectiveness of the present invention is also same
Sample is outstanding.
Specific embodiment
Embodiment 1：
A kind of high heat resistant type flexible optical cable, including surface layer, thermal protection enhancement layer, middle casing, screen layer, inner cladding,
Six layers of core, wherein surface layer are made up of the methyl vinyl silicone rubber being solidified with 5-8wt% flame retardant of magnesium hydroxide, thermal protection
Enhancement layer is formed using graphitized carbon fibre braiding, and middle casing is made up of ENB ethylene propylene diene rubber, and screen layer is carbon film, interior
Covering is titanium dioxide silicon substrate light, and core is titanium dioxide silicon substrate glass of high refractive index；The wherein low folding of titanium dioxide silicon substrate
Penetrate rate glass and include silicon dioxide 85-92 part, sulfur dioxide 2-3 part, carbon dioxide 2-3 part, boron oxide 6-8 by molecular amounts
Part；Titanium dioxide silicon substrate glass of high refractive index includes silicon dioxide 85-92 part, phosphorus pentoxide 3-4 part, germanium oxide by molecular amounts
8-10 part.
The manufacture method of above-mentioned high heat resistant type flexible optical cable, comprises the following steps：
1) preparation of inner cladding base material
1. press the raw material that molecular number gauge prepares following number：Silicon fluoride. 85-92 part, sulfur hexafluoride 2-3 part, tetrafluoro
Change two carbon 2-3 parts, boron oxide 6-8 part, enough purity is not less than 99.99% high purity oxygen gas, enough chlorine and appropriate standard take off
Infusion；
2. prepare following equipment：It is provided with the glass work lathe of quartz ampoule, oxyhydrogen flame generating meanss, flask, air shooter
Road, thermocouple and gaseous mass effusion meter；
3. Silicon fluoride., sulfur hexafluoride, tetrafluoride two carbon, boron oxide are contained in flask, using conventional criteria Fang Huajin
Row evaporation process, obtains full conjunction steam；
4. the high purity oxygen gas 1. being prepared with step as carrier gas, the full conjunction steam that 3. blend step obtains, by standard mode plus
Enter appropriate standard deaeration agent, the gas transmission pipeline being provided by gas mass flow gauge is delivered to the quartz ampoule of glass work lathe
Interior, quartz ampoule is rotated with the rotating speed of 30r/min-40r/min on glass work lathe；
5. light oxyhydrogen flame generating meanss, move axially quartz ampoule, make the oxyhydrogen flame generating meanss can uniform heated quarty tube
Body, thermocouple is fixed on heating region in the quartz ampoule above oxyhydrogen flame generating meanss, monitors this regional temperature；
6. pass through to monitor heating region temperature, adjust the fire of oxyhydrogen flame generating meanss when being heated to 1400 DEG C -1600 DEG C
Flame exports, and keeping temperature is stablized in 1400 DEG C of -1600 DEG C of intervals；
7. after the nature of glass deposits to 5-8mm in quartz ampoule, that is, obtain required inner cladding base material；
2) preparation of heartwood base material
1. press the raw material that molecular number gauge prepares following number：Silicon fluoride. 85-92 part, phosphorus oxychloride 3-4 part, tetrachloro
Change germanium 8-10 part, enough purity is not less than 99.99% high purity oxygen gas, enough chlorine and appropriate standard deaeration agent；
2. contain Silicon fluoride., phosphorus oxychloride, germanium tetrachloride in flask, be evaporated locating using conventional criteria sideization
Reason, obtains full conjunction steam；
3. the high purity oxygen gas 1. being prepared with step as carrier gas, the full conjunction steam that 3. blend step obtains, by standard mode plus
Enter appropriate standard deaeration agent, the gas transmission pipeline being provided by gas mass flow gauge is delivered to the quartz ampoule of glass work lathe
Interior, quartz ampoule is rotated with the rotating speed of 30r/min-40r/min on glass work lathe；
4. light oxyhydrogen flame generating meanss, move axially quartz ampoule, make the oxyhydrogen flame generating meanss can uniform heated quarty tube
Body, thermocouple is fixed on heating region in the quartz ampoule above oxyhydrogen flame generating meanss, monitors this regional temperature；
5. pass through to monitor heating region temperature, adjust the fire of oxyhydrogen flame generating meanss when being heated to 1400 DEG C -1600 DEG C
Flame exports, and keeping temperature is stablized in 1400 DEG C of -1600 DEG C of intervals；
6. when in quartz ampoule, the nature of glass deposits to median pore radius no more than 5mm, that is, heartwood base material needed for obtaining；
3) preparation of solid glass bar stock
1. thermocouple is moved to above quartz ampoule corresponding outer surface vertical with oxyhydrogen flame generating meanss；
2. adjust the flame output of oxyhydrogen flame generating meanss when quartzy tube wall is heated to 1800 DEG C -1900 DEG C, keep
Temperature stabilization is in 1800 DEG C of -1900 DEG C of intervals；
3. when in quartz ampoule, nature of glass hot mastication is contracted to solid, that is, solid glass bar stock needed for obtaining；
4) preparation of optical fiber
1. adopting conventional criteria mode by 3) the solid glass bar stock that obtains is drawn into cellosilk；
2. in filament surface, one layer of carbon film of cladding is amassed by the heavy method of physical vapor, this layer of carbon film is screen layer；
3. required single mode or multimode fibre core will be made with screen layer cellosilk by standard method；
4. select ENB ethylene propylene diene rubber as raw material, be solidificated in screen layer cellosilk table by standard method
Face, this layer of ENB ethylene propylene diene rubber is required middle casing；
5) preparation of graphitized carbon fibre
1. ammonia, propane and acrylonitrile are synthesized by polyacrylonitrile resin by standard method；
2. the polyacrylonitrile resin that 1. step obtains is dissolved in the intermixture that polyethylene glycol oxide is with pure water, this intermixture
Interior polyethylene glycol oxide is 2.5-3: 7 with the volume ratio of pure water, obtains spinning solution；
3. the spinning solution that 2. step obtains is sprayed in coagulating bath by the spray orifice pressurization of aperture 0.05mm-0.08mm,
Pressure limit is 1.5bar-2bar, and shower nozzle and coagulation bath identity distance, from for 10mm-15mm, obtain polyacrylonitrile fibril；
4. the polyacrylonitrile fibril that 3. step obtains is pre-oxidized by standard method, obtained pre-oxidized fibers；
5. the pre-oxidized fibers that 4. step obtains are carried out charing process, described charing process be divided into front charing process and after
Charing process, 750 DEG C -800 DEG C of front charing process temperature, process time 5min-10min, 1500 DEG C of rear charing process temperature -
1600 DEG C, process time 5min-8min obtains carbon fiber；
6. the carbon fiber that 5. step obtains is put and carries out graphitization processing, will be positioned over 2400 DEG C of -2500 DEG C of rings
Under border, it is incubated 8s-12s；
7. silk, graphitized carbon fibre needed for acquisition are received；
6) preparation of optical cable
1. 5 are selected) graphitized carbon fibre that obtains is woven into net and is sleeved on middle casing surface, and this layer adds for thermal protection
Strong layer；
2. top layer encapsulating material is from the methyl vinyl silicone rubber being solidified with 5-8wt% flame retardant of magnesium hydroxide, solidification
Method is when preparing Methylethyl type silicone rubber by standard method, is directly added into 3-5wt% magnesium hydroxide in its raw material
Powder is simultaneously mixed homogeneously with other raw materials, due to the raw material of Methylethyl type silicone rubber have in preparation process certain
Scaling loss, in the final finished product methyl vinyl silicone rubber obtaining, the content of flame retardant of magnesium hydroxide is up to 5-8wt%；By this material
Be solidificated in thermal protection in the standard fashion and strengthen layer surface, form surface layer, that is, high heat resistant type flexible optical cable needed for obtaining.
Described above to the disclosed embodiments, only for making professional and technical personnel in the field be capable of or using this
Invention.Multiple modifications to these embodiments will be apparent from for those skilled in the art, institute herein
The General Principle of definition can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent scope the widest of point.
Claims (2)
1. a kind of manufacture method of high heat resistant type flexible optical cable is it is characterised in that comprise the following steps：
1) preparation of inner cladding base material
1. press the raw material that molecular number gauge prepares following number：Silicon fluoride. 85-92 part, sulfur hexafluoride 2-3 part, tetrafluoride two
Carbon 2-3 part, boron oxide 6-8 part, enough purity is not less than 99.99% high purity oxygen gas, enough chlorine and appropriate standard deaeration agent；
2. prepare following equipment：It is provided with the glass work lathe of quartz ampoule, oxyhydrogen flame generating meanss, flask, gas transmission pipeline, heat
Galvanic couple and gaseous mass effusion meter；
3. contain Silicon fluoride., sulfur hexafluoride, tetrafluoride two carbon, boron oxide in flask, steamed using conventional criteria sideization
Send out and process, obtain full conjunction steam；
4. the high purity oxygen gas 1. being prepared with step as carrier gas, the full conjunction steam that 3. blend step obtains, add suitable by standard mode
Amount standard deaeration agent, the gas transmission pipeline being provided by gas mass flow gauge is delivered in the quartz ampoule of glass work lathe,
Quartz ampoule is rotated with the rotating speed of 30r/min-40r/min on glass work lathe；
5. light oxyhydrogen flame generating meanss, move axially quartz ampoule, make oxyhydrogen flame generating meanss can uniform heated quarty tube body,
Thermocouple is fixed on heating region in the quartz ampoule above oxyhydrogen flame generating meanss, monitors this regional temperature；
6. pass through to monitor heating region temperature, the flame adjusting oxyhydrogen flame generating meanss when being heated to 1400 DEG C -1600 DEG C is defeated
Go out, keeping temperature is stablized in 1400 DEG C of -1600 DEG C of intervals；
7. after the nature of glass deposits to 5-8mm in quartz ampoule, that is, obtain required inner cladding base material；
2) preparation of heartwood base material
1. press the raw material that molecular number gauge prepares following number：Silicon fluoride. 85-92 part, phosphorus oxychloride 3-4 part, germanium tetrachloride
8-10 part, enough purity is not less than 99.99% high purity oxygen gas, enough chlorine and appropriate standard deaeration agent；
2. contain Silicon fluoride., phosphorus oxychloride, germanium tetrachloride in flask, be evaporated processing using conventional criteria sideization, obtain
Must satisfy conjunction steam；
3. the high purity oxygen gas 1. being prepared with step as carrier gas, the full conjunction steam that 3. blend step obtains, add suitable by standard mode
Amount standard deaeration agent, the gas transmission pipeline being provided by gas mass flow gauge is delivered in the quartz ampoule of glass work lathe,
Quartz ampoule is rotated with the rotating speed of 30r/min-40r/min on glass work lathe；
4. light oxyhydrogen flame generating meanss, move axially quartz ampoule, make oxyhydrogen flame generating meanss can uniform heated quarty tube body,
Thermocouple is fixed on heating region in the quartz ampoule above oxyhydrogen flame generating meanss, monitors this regional temperature；
5. pass through to monitor heating region temperature, the flame adjusting oxyhydrogen flame generating meanss when being heated to 1400 DEG C -1600 DEG C is defeated
Go out, keeping temperature is stablized in 1400 DEG C of -1600 DEG C of intervals；
6. when in quartz ampoule, the nature of glass deposits to median pore radius no more than 5mm, that is, heartwood base material needed for obtaining；
3) preparation of solid glass bar stock
1. thermocouple is moved to above quartz ampoule corresponding outer surface vertical with oxyhydrogen flame generating meanss；
2. the flame output of oxyhydrogen flame generating meanss, keeping temperature are adjusted when quartzy tube wall is heated to 1800 DEG C -1900 DEG C
Stablize in 1800 DEG C of -1900 DEG C of intervals；
3. when in quartz ampoule, nature of glass hot mastication is contracted to solid, that is, solid glass bar stock needed for obtaining；
4) preparation of optical fiber
1. adopting conventional criteria mode by 3) the solid glass bar stock that obtains is drawn into cellosilk；
2. in filament surface, one layer of carbon film of cladding is amassed by the heavy method of physical vapor, this layer of carbon film is screen layer；
3. required single mode or multimode fibre core will be made with screen layer cellosilk by standard method；
4. select ENB ethylene propylene diene rubber as raw material, be solidificated in screen layer filament surface by standard method, should
Layer ENB ethylene propylene diene rubber is required middle casing；
5) preparation of graphitized carbon fibre
1. ammonia, propane and acrylonitrile are synthesized by polyacrylonitrile resin by standard method；
2. the polyacrylonitrile resin that 1. step obtains is dissolved in the intermixture that polyethylene glycol oxide is with pure water, this intermixture is cohesion
Ethylene oxide is 2.5-3: 7 with the volume ratio of pure water, obtains spinning solution；
3. the spinning solution that 2. step obtains is sprayed in coagulating bath by the spray orifice pressurization of aperture 0.05mm-0.08mm, pressure
Scope is 1.5bar-2bar, and shower nozzle and coagulation bath identity distance, from for 10mm-15mm, obtain polyacrylonitrile fibril；
4. the polyacrylonitrile fibril that 3. step obtains is pre-oxidized by standard method, obtained pre-oxidized fibers；
5. the pre-oxidized fibers that 4. step obtains are carried out charing process, described charing process is divided into front charing process and rear carbonization
Process, 750 DEG C -800 DEG C of front charing process temperature, process time 5min-10min, 1500 DEG C -1600 of rear charing process temperature
DEG C, process time 5min-8min obtains carbon fiber；
6. the carbon fiber that 5. step obtains is put and carries out graphitization processing, will be positioned under 2400 DEG C of -2500 DEG C of environment,
Insulation 8s-12s；
7. silk, graphitized carbon fibre needed for acquisition are received；
6) preparation of optical cable
1. 5 are selected) graphitized carbon fibre that obtains is woven into net and is sleeved on middle casing surface, and this layer is thermal protection reinforcement
Layer；
2. top layer encapsulating material is from the methyl vinyl silicone rubber being solidified with 5-8wt% flame retardant of magnesium hydroxide, curing
It is when preparing Methylethyl type silicone rubber by standard method, its raw material is directly added into 3-5wt% magnesium hydroxide powder
And mix homogeneously with other raw materials；This material is solidificated in thermal protection in the standard fashion and strengthens layer surface, form surface layer, that is,
High heat resistant type flexible optical cable needed for acquisition.
2. method produces according to claim 1 high heat resistant type flexible optical cable it is characterised in that：This high heat resistant type is flexible
Optical cable includes surface layer, thermal protection enhancement layer, middle casing, screen layer, inner cladding, six layers of core, and wherein surface layer is by solidifying
The methyl vinyl silicone rubber having 5-8wt% flame retardant of magnesium hydroxide is made, and thermal protection enhancement layer adopts graphitized carbon fibre to compile
Knit and form, middle casing is made up of ENB ethylene propylene diene rubber, screen layer is carbon film, inner cladding is titanium dioxide silicon substrate low-refraction
Glass, core is titanium dioxide silicon substrate glass of high refractive index；Wherein titanium dioxide silicon substrate light includes two by molecular amounts
Silicon oxide 85-92 part, sulfur dioxide 2-3 part, carbon dioxide 2-3 part, boron oxide 6-8 part；Titanium dioxide silicon substrate glass of high refractive index
Include silicon dioxide 85-92 part, phosphorus pentoxide 3-4 part, germanium oxide 8-10 part by molecular amounts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910290.2A CN106483614B (en) | 2016-10-19 | 2016-10-19 | A kind of high heat resistance type flexible optical cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910290.2A CN106483614B (en) | 2016-10-19 | 2016-10-19 | A kind of high heat resistance type flexible optical cable and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107703591A (en) * | 2017-09-22 | 2018-02-16 | 宁波光极照明科技有限公司 | A kind of corrosion resistant type flexible optical cable and preparation method thereof |
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| CN205594205U (en) * | 2016-01-27 | 2016-09-21 | 宁波科曼光缆有限公司 | FRP pine cover layer stranded type optical cable |
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| JPH07163671A (en) * | 1993-12-13 | 1995-06-27 | Furukawa Techno Material:Kk | Fireproof processing structure of combustible cable, and kit used therefor |
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| CN107703591A (en) * | 2017-09-22 | 2018-02-16 | 宁波光极照明科技有限公司 | A kind of corrosion resistant type flexible optical cable and preparation method thereof |
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Effective date of registration: 20190111 Address after: 225300 West Side of Xingye Road, Luotang Street, Jiangyan District, Taizhou City, Jiangsu Province Applicant after: Jiangsu Hua Mai Optoelectronic Technology Co., Ltd. Address before: 315000 017 Building 7-53-4, 128 Exhibition Road, Jiangdong District, Ningbo City, Zhejiang Province Applicant before: Ningbo Sanbo Electronic Technology Co., Ltd. |
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Effective date of registration: 20191028 Address after: 225300 West Side of Xingye Road, Luotang Street, Jiangyan District, Taizhou City, Jiangsu Province Co-patentee after: NANJING HUAMAI TECHNOLOGY CO., LTD. Patentee after: Jiangsu Hua Mai Optoelectronic Technology Co., Ltd. Address before: 225300 West Side of Xingye Road, Luotang Street, Jiangyan District, Taizhou City, Jiangsu Province Patentee before: Jiangsu Hua Mai Optoelectronic Technology Co., Ltd. |