CN106710698A - Method for preparing optical cable for smart power grid - Google Patents
Method for preparing optical cable for smart power grid Download PDFInfo
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- CN106710698A CN106710698A CN201610992849.0A CN201610992849A CN106710698A CN 106710698 A CN106710698 A CN 106710698A CN 201610992849 A CN201610992849 A CN 201610992849A CN 106710698 A CN106710698 A CN 106710698A
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- fiber cloth
- basalt fiber
- powder
- cloth set
- mould tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/148—Selection of the insulating material therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a method for preparing an optical cable for a smart power grid. On the premise that the fire-resistant and insulation principle of the ceramic silicone rubber is not changed, the organic rubber is removed and the formula of inorganic powder is optimized; and the fire-resistant and insulation layer carries out sintering and porcelainizing reaction at a high burning temperature and a compact sintering ceramic case with low porosity is obtained, so that the high-temperature insulation and fire resistance of the optical cable and the power core at a high burning temperature can be improved obviously. Moreover, an outer basalt fiber cloth cover has the flexible texture; before powder pouring, the free end of the outer basalt fiber cloth cover turns over outwardly and exchange of the inner surface and the outer surface is realized; a die tube is used for cooperation and a short to-be-smashed space is formed in the die tube, so that a smashed tube can go in or out of the die tube successfully to carry out smashing and pulling or rolling can be avoided after completion of the smashing. Therefore, the time and effort can be saved; the production process can be simplified; lots of costs can be saved; and the manufacturing length of the optical cable is not restricted theoretically.
Description
Technical field
The present invention relates to intelligent power grid technology field, more particularly, to a kind of preparation side of the optical cable for intelligent grid
Method.
Background technology
Optical cable (Optical power cable, OPC) is organically to combine plain conductor and optical fiber, while,
Go the same way, move towards to transmit the integrated transmission medium of electric energy and optical information together, it realizes flow of power, Business Stream, the one of information flow
Bodyization merge, by once setting up, once construct, once put into, while transferring high voltage electric energy transmit voice, data, regard
The information such as frequency, substantially reduce the duration, reduce construction cost, have saved resource, are that intelligent grid construction has established solid
Basis.
With economic development and scientific and technological progress, the fire resistant requirements to the optical cable of intelligent grid are more and more harsh.
For the refractory design of the fiber cores in optical cable, at present, have prior art discloses the optical fiber in optical cable
Ceramic silicon rubber layer is set up in the structure of core as flame retardant coating, the fire resistance of optical fiber component in optical cable is improved.
For the refractory design of the electric power core in optical cable, it is contemplated that its function is identical with single cable, be mostly for
Power Transmission, therefore, when the electric power core in optical cable makees refractory design, may be referred to fire-resisting cable of the prior art
Fire resisting conceptual design.
The fire resisting conceptual design of current fire-resisting cable mainly has three kinds of forms：Earliest Mica tape fire-resisting cable,
The mineral insulated cable for occurring later and the Ceramic silicon rubber fire-resisting cable for occurring recently.
Mica tape fire-resisting cable：Flame retardant coating is generally formed using price fire-resistant isinglass belt higher is wrapped, wrapped speed
Degree is slow, it is wrapped during mica powder easily come off, influence fire resisting effect；Defocused fire-resistant isinglass belt embrittlement is burnt, shake is run into
It is dynamic and when spraying it is easy to fall off, fire resisting effect is poor, it is difficult to ensure that power circuit remain in the case of fire it is safe and smooth.
Mineral insulated cable：Mineral insulated cable abbreviation MI cables, conductor, inorganic matter oxidation are made using the copper of high conductivity
Magnesium insulate, and seamless copper pipe makees sheath, if necessary, one layer of plastics outer jacket is extruded outside annealing copper sheath, particular/special requirement without
Cigarette Halogen occasion can outside add one layer of low smoke and zero halogen sheath；Due to its unique structure and the inorganic insulation sheet using material
Property so that mineral insulated cable has fire prevention, grease proofing, explosion-proof, waterproof, smokeless, Halogen, nontoxic, high temperature resistant, corrosion-resistant, resistance to spoke
Penetrate, anti-electromagnetic interference, current-carrying capacity is big, overload capacity is strong, high mechanical strength, small volume, lightweight, long lifespan, ground connection performance it is good,
It is easy for installation, the low characteristic better than other kind cables of integrated cost；Mineral insulated cable is current safest cable.Ore deposit
Although the structure of thing insulated cable is only simple three layers, all simple more than other fire-resisting cables, manufacture craft is very multiple
Miscellaneous, manufacture difficulty is very high, it is necessary to special production equipment and production line, and early stage equipment investment is larger, and yield rate and yield are equal
It is relatively low, although including relatively low installed in interior integrated cost, but its production cost is more much higher than other fire-resisting cables；It is
A kind of fire-resisting cable of gentrification, the daily household common people do not afford to do.
Ceramic silicon rubber fire-resisting cable：It is to solve existing for Mica tape fire-resisting cable and mineral insulated cable
A kind of novel flame resistant cable for developing recently of problem, its flame retardant coating is made using Ceramic silicon rubber, its processing work
Skill is：Plus sulphur → extrusion → vulcanization, the special silicone rubber wire cable extruding machine completion of extrusion needs, vulcanization is also required to special
The vulcanizing equipment of door, such as：Hot-air cure stove, microwave vulcanization drying tunnel etc., flame retardant coating processing technology are complicated, low production efficiency.Enter
The improvement of one step, is first combined into Ceramic silicon rubber composite band, then as mica tape by Ceramic silicon rubber and glass fabric
It is wrapped like that refractory insulating layer is constituted on conductor, with improve production efficiency etc..
The Ceramic silicon rubber layer or the Ceramic silicon rubber composite band around wrap molding of shaping are either extruded, the two is all
It is organic material, when the ceramic SiClx rubber because the matrix of above-mentioned Ceramic silicon rubber is silicon rubber including Ceramic silicon rubber
After glue runs into flame combustion, the organic material silicon rubber of the inside can degrade or burn, and be obtained by Ceramic silicon rubber after burning
A duricrust being formed of inorganic particle sintering porcelainization, it has certain mechanical strength, continues to insulate and refractory protection is in it
The normal transmission of conductor use.In Ceramic silicon rubber, organic material silicon rubber is occupied each with inorganic material particle
Certain space, because organic material silicon rubber is degraded or burns, or becomes cigarette ash, or becomes gaseous volatilization, and it exists originally
The space occupied in Ceramic silicon rubber is just freed out, and remaining inorganic material particle is also without unnecessary ability duplicate removal
The space that this part frees out newly is occupied, therefore, the duricrust obtained after Ceramic silicon rubber sintering is that a kind of holey is hard
Shell, with a large amount of penetrating grid cavities, due to the presence in these penetrating grid cavities, it is clear that the high-temperature insulating quality of the duricrust
It is certainly not high with fire resistance；For this cable for being used for communicating of fiber cores, its requirement to insulating properties is relatively low, above-mentioned
The high-temperature insulating quality of holey duricrust can meet the normal of fiber cores and use, but, electric power core is used for power Transmission,
Have or high-tension electricity, higher to high-temperature insulating quality requirement, the insulating properties of above-mentioned holey duricrust is only capable of exerting oneself in the short time
The strong normal transmission for maintaining conductor is used.
Therefore, one kind how is provided under combustion high temperature, and high-temperature insulating quality and the more preferable optical cable of fire resistance are this areas
The technical problem of technical staff's urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of preparation method of the optical cable for intelligent grid, the preparation method is obtained
Optical cable under combustion high temperature, with high-temperature insulating quality and fire resistance higher.
To solve above-mentioned technical problem, the technical scheme that the present invention is provided is：
A kind of preparation method of optical cable for intelligent grid, comprises the following steps：
1) copper conductor is taken；
One piece of basalt fiber cloth of strip is taken, the center line then gone up along its length is folded, and then uses basalt
Be combined for side seam on two length directions of the basalt fiber cloth by single, then removes unnecessary joining edge,
The interior basalt fiber cloth set of hollow tubular is obtained, the one end on length direction for then covering interior basalt fiber cloth is from interior profound
Military rock fiber cloth set it is hollow in exchange and cause profound for what is sutured through the interior outside covered with basalt fiber cloth in causing
Ensconce in military rock single the interior basalt fiber cloth set it is hollow in, it is stand-by；
One piece of basalt fiber cloth of strip is taken, the center line then gone up along its length is folded, and then uses basalt
Be combined for side seam on two length directions of the basalt fiber cloth by single, then removes unnecessary joining edge,
The outer basalt fiber cloth set of hollow tubular is obtained, the one end on length direction for then covering outer basalt fiber cloth is from outer profound
Military rock fiber cloth set it is hollow in exchange and cause for the profound of suture through with the interior outside for outer basalt fiber cloth is covered
Ensconce in military rock single the outer basalt fiber cloth set it is hollow in, it is stand-by；
And the internal diameter size of the control interior basalt fiber cloth set meets the interior basalt fiber cloth set and is tightly placed in institute
State on copper conductor, and control the external diameter of the internal diameter more than the interior basalt fiber cloth set of the outer basalt fiber cloth set, and
The size of the knitting eyelet of the outer basalt fiber cloth set and interior basalt fiber cloth set is controlled to be less than the silica flour, silicon
The particle size of limestone flour, kaolin powder and glass dust, to prevent powder from being covered and interior profound from the outer basalt fiber cloth
Spilt in the knitting eyelet of military rock fiber cloth set；
Silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed, it is stand-by；
A hollow mould tube is taken, and controls the internal diameter of the mould tube and the external diameter of the outer basalt fiber cloth set
It is identical, and the length of the mould tube is to be provided with screw thread, and the mould on 15cm, and the lower end outer circumference surface of the mould tube
Tool pipe is in vertically to being fixed in frame；
A hollow initial skirt is taken, and the internal diameter of the initial skirt is identical with the internal diameter of the mould tube, and institute
The external diameter for stating initial skirt is identical with the external diameter of the mould tube, and the length of the initial skirt is 5cm, and described initially draws
Screw thread is provided with the upper end outer circumferential face of pipe, and the lower end of the initial skirt is provided with for fastening the outer basalt fibre
The fastening end cap of Wei Bu sets, interior basalt fiber cloth set and copper conductor；
2) by step 1) in described interior basalt fiber cloth set be set in step 1) in copper conductor on；
Then by step 1) in described outer basalt fiber cloth set be set in the interior basalt fiber cloth and put；
Then the described outer basalt fiber cloth set being set-located, interior basalt fiber cloth are covered and copper conductor insertion
In the mould tube, it is inserted into the initial skirt, most the outer basalt fiber cloth set, interior basalt fiber cloth set at last
And the fastening end that copper conductor is fixed on the initial skirt covers, then by the upper end of initial skirt described in nut screw connection
Screw thread initial skirt is threadedly coupled with mould tube with the screw thread of the mould tube lower end；
Then the free end on length direction for outer basalt fiber cloth being covered is turned up, and exchanges its interior outside, outer always
Turn over until the outer turn-line that puts of outer basalt fiber cloth is close to the upper edge of the mould tube；
The part exposed outside the mould tube of the copper conductor, the copper are supported using a series of flat idler
The horizontal part of conductor is connected by a bending section with the part inserted in the mould tube；
Ensure that inserting the copper conductor in mould tube is always positioned on the longitudinal center line of the mould tube using guide roller；
3) to the mould tube and the filling silica flour being well mixed, wollastonite in powder, kaolin powder, glass in initial skirt
Powder and dimethyl silicone polymer；
Then with smashing pressure pipe by silica flour, wollastonite in powder, kaolin powder, the glass dust in the mould tube and initial skirt
And dimethyl silicone polymer compacting, control silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer
Filling amount causing upper edge 4cm~5cm of the powder compact away from mould tube in compacting rear mold pipe；
Then screw on nut disconnects the threaded connection of mould tube and initial skirt；
Then 5cm is moved straight down using batching the initial skirt of machine travel；
During initial skirt is moved straight down, drive the outer turn-line of outer basalt fiber cloth set gradually upward
It is mobile；
4) in the mould tube again filling well mixed silica flour, wollastonite in powder, kaolin powder, glass dust and
Dimethyl silicone polymer；
Then use and smash pressure pipe by the silica flour in the mould tube, wollastonite in powder, kaolin powder, glass dust and poly- diformazan
Radical siloxane is compacted, control silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer filling amount with
So that upper edge 4cm~5cm of the powder compact in compacting rear mold pipe away from mould tube；
Then using batch the initial skirt of machine travel to away from mould tube direction move 5cm；
Then repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction；
5) after the length of the copper conductor with refractory insulating layer pulled out from mould tube meets bending radius, carry
The copper conductor of refractory insulating layer is bent into horizontal direction, is supported using a series of flat idler；
When the refractory insulating layer produced closes on the free end of copper conductor, stop filling powder, then will be exhausted with fire resisting
The copper conductor of edge layer is exited from mould tube along the pulling motion direction of script copper conductor, then removes fastening end cap and initial
Skirt, then with Ceramic silicon rubber composite band copper conductor the wrapped making refractory insulating layer in the two ends without powder compact,
And control by outer basalt fiber cloth set and interior basalt fiber cloth set it is wrapped Ceramic silicon rubber composite band and copper conductor it
Between, so far obtain electric power core；
6) take tight tube fiber, strengthen steel core, optical fiber filler and binder, then will be described with optical fiber binder
Tight tube fiber, strengthen steel core and optical fiber filler wrap up into it is a branch of, then on the outer surface of the optical fiber binder
Ceramic silicon rubber layer is extruded, fiber cores are obtained；
Then the fiber cores, electric power core and cable core filler are wrapped up into cable core binder it is a branch of, then
Inner restrictive coating is extruded on the outer surface of the cable core binder；
Then water blocking layer and external sheath layer are extruded successively from inside to outside in the outer surface of inner restrictive coating, finally gives photoelectricity
Cable.
Preferably, the water blocking layer is two-sided waterstop to overlap around the wrapped outer surface in the inner restrictive coating of packet mode
Constitute.
Preferably, the inner restrictive coating is polyvinyl chloride material.
Preferably, the external sheath layer is low smoke, zero halogen polyolefin flame-retardant restrictive coating.
Compared with prior art, the application is first there is provided a kind of preparation method of optical cable for intelligent grid, the system
Preparation Method with reference to the magnesia automatic filling method of mineral insulated cable, but not fully identical with magnesia automatic filling method,
But powder sort is different, parcel powder wrappage is different and due to parcel powder be soft outer basalt fiber cloth
The part steps in production technology caused by set are different；
The principle of the hot-face insulation of Ceramic silicon rubber layer and Ceramic silicon rubber composite band is made full use of, is not being changed
On the premise of the hot-face insulation principle, the organic matter rubber in Ceramic silicon rubber is removed, and by Ceramic silicon rubber
The formula of inorganic powder is optimized so that refractory insulating layer issues the reaction of raw burn knot porcelainization in combustion high temperature, and what is obtained is one
Individual, sintering porcelain shell that porosity lower more closely knit than powder compact, one than traditional ceramics SiClx rubber layer or ceramic SiClx rubber
The sintering porcelain shell that holey duricrust is more closely knit, porosity is lower obtained after the burning of glue composite band, considerably improves the electricity
The high-temperature insulating quality and fire resistance of power core and optical cable under combustion high temperature；
The free end on length direction that outer basalt fiber cloth is covered is turned up, and exchanges its interior outside, turns up straight always
The outer turn-line put to outer basalt fiber cloth is sought close to the upper edge of the mould tube, mating mold pipe in mould tube
Produce length very little wait smash pressure space, so smash pressure pipe or similar smash pressure device and can successfully pass in and out the mould
Carry out smashing pressure in pipe, thoroughly solve in the magnesia powder automatic filling method of above-mentioned mineral insulated cable due to amount of deflection flexural deformation
And the problem that cannot be processed, because copper conductor now used is the copper conductor of target thickness, outside outer basalt fiber cloth set
Footpath is the external diameter of target refractory insulating layer, and electric power core can be produced in theory without drawing again or rolling after the completion of smashing pressure
The length of electric power core and optical cable is unrestricted, time saving and energy saving, simplifies production technology, saves great amount of cost, improves and produces
Energy.
Brief description of the drawings
Fig. 1 is the structural representation of optical cable provided in an embodiment of the present invention；
Fig. 2 is the structural representation of fiber cores in Fig. 1；
Fig. 3 is the structural representation of electric power core in Fig. 1；
Fig. 4 is the principle schematic of the preparation method of electric power core provided in an embodiment of the present invention.
In figure：1 copper conductor, 2 refractory insulating layers, basalt fiber cloth set in 201,202 powder compacts, 203 outer basalt
Fiber cloth set, 204 outer turn-lines, 3 inner restrictive coatings, 4 water blocking layers, 5 external sheath layers, 6 mould tubes, 7 cable core binders, 8 ceramics
SiClx rubber layer, 9 optical fiber binders, 10 tight sleeve pipes, 11 optical fiber, 12 optical fiber fillers, 13 cable core fillers, 14 strengthen
Steel core.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " axial direction ", " radial direction ", " longitudinal direction ", " transverse direction ",
" length ", " width ", " on ", D score, "front", "rear", "left", "right", " top ", " bottom ", " interior ", " outward ", " clockwise ", " inverse
The orientation or position relationship of the instructions such as hour hands " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Invention and simplified description, must be with specific orientation, with specific square rather than instruction or the signified device of hint or element
Position construction and operation, therefore be not considered as limiting the invention.
Reference picture 1~Fig. 4, Fig. 1 are the structural representation of optical cable provided in an embodiment of the present invention；Fig. 2 is optical fiber in Fig. 1
The structural representation of core；Fig. 3 is the structural representation of electric power core in Fig. 1；Fig. 4 is the system of electric power core provided in an embodiment of the present invention
The principle schematic of Preparation Method.
This application provides a kind of optical cable for intelligent grid, including wrap up successively from inside to outside cable core, block water
Layer 4 and external sheath layer 5；
The cable core includes fiber cores, electric power core, cable core filler 13, cable core binder 7 and inner restrictive coating 3；
The fiber cores, electric power core and cable core filler 13 are wrapped up into a branch of, the interior shield by cable core binder 7
Jacket layer 3 is coated on the outer surface of the cable core binder 7；
The fiber cores include tight tube fiber, strengthen steel core 14, optical fiber filler 12, optical fiber binder 9 and pottery
Porcelain SiClx rubber layer 8；
The tight tube fiber, reinforcement steel core 14 and optical fiber filler 12 wrap up into a branch of, institute by optical fiber binder 9
Ceramic silicon rubber layer 8 is stated to be coated on the outer surface of the optical fiber binder 9；
The tight tube fiber includes optical fiber 11, optical fiber filler 12 and tight sleeve pipe 10, the optical fiber 11 and optical fiber
It is rolled into by tight sleeve pipe 10 with filler 12 a branch of；
The electric power core includes the copper conductor 1 and refractory insulating layer 2 that wrap up successively from inside to outside；
The refractory insulating layer 2 includes two ends for being located at the length direction two ends of the copper conductor 1 respectively and one
Pars intermedia between two ends；
The end of the refractory insulating layer 2 is Ceramic silicon rubber composite band, and the Ceramic silicon rubber composite band is wrapped
On the two ends of the copper conductor 1；
The pars intermedia of the refractory insulating layer 2 includes interior basalt fiber cloth set 201, outer basalt fiber cloth set 203, stone
Ying Fen, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer；
The interior basalt fiber cloth set 201 and outer basalt fiber cloth set 203 are sequentially sleeved at described from inside to outside
On copper conductor 1, and the internal diameter of the outer basalt fiber cloth set 203 is more than the external diameter that the interior basalt fiber cloth covers 201, with
One is formed between the interior basalt fiber cloth set 201 and outer basalt fiber cloth set 203 is used to store silica flour, silicon
The cavity of limestone flour, kaolin powder and glass dust, and the outer basalt fiber cloth covers 203 and interior basalt fiber cloth set
The size of 201 knitting eyelet is less than the particle size of the silica flour, wollastonite in powder, kaolin powder and glass dust, in case
Only powder spills from the knitting eyelet of the outer basalt fiber cloth set 203 and interior basalt fiber cloth set 201；
It is compacted after the silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed
In cavity between the outer basalt fiber cloth set 203 and interior basalt fiber cloth set 201；
The outer basalt fiber cloth set 203 and interior basalt fiber cloth are covered 201 by the Ceramic silicon rubber composite band
Two ends winding compression be sealed between Ceramic silicon rubber composite band and copper conductor 1.
In one embodiment of the invention, the water blocking layer 4 for two-sided waterstop it is wrapped in institute around packet mode to overlap
The outer surface for stating inner restrictive coating 3 is constituted.
In one embodiment of the invention, the inner restrictive coating 3 is polyvinyl chloride material.
In one embodiment of the invention, the external sheath layer 5 is low smoke, zero halogen polyolefin flame-retardant restrictive coating.
This application provides a kind of optical cable for intelligent grid, including wrap up successively from inside to outside cable core, block water
Layer 4 and external sheath layer 5；The cable core includes fiber cores, electric power core, cable core filler 13, cable core binder 7 and interior
Restrictive coating 3；The electric power core includes the copper conductor 1 and refractory insulating layer 2 that wrap up successively from inside to outside；The refractory insulating layer
2 include two pars intermedias respectively between the end and two ends at the length direction two ends of the copper conductor 1；Institute
The end of refractory insulating layer 2 is stated for Ceramic silicon rubber composite band, the Ceramic silicon rubber composite band is wrapped to be led in the copper
On the two ends of body 1；The pars intermedia of the refractory insulating layer 2 includes interior basalt fiber cloth set 201, outer basalt fiber cloth set
203rd, silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer；The silica flour, wollastonite in powder, height
The native powder in ridge, glass dust and dimethyl silicone polymer are compacted profound with interior in the outer basalt fiber cloth set 203 after being well mixed
In closed cavity between military rock fiber cloth set 201；
Preferably, silica flour be 50 weight portions, wollastonite in powder be 6 weight portions (а-CaSiO3 types, through methyl alkoxy silane
Coupling agent treatment), kaolin powder be that 45 weight portions (calcined kaolin, through amino silicane coupling agent process), glass are 5 weight
Part, and dimethyl silicone polymer is 3 weight portions；
With the pressure of 10MPa~20MPa after the silica flour, wollastonite in powder, kaolin powder and glass dust are well mixed
It is compacted in the closed cavity between the outer basalt fiber cloth set 203 and interior basalt fiber cloth set 201；
Outer basalt fiber cloth set 203 and interior basalt fiber cloth set 201 are due to being basalt fibre material, and its tension is strong
Outer basalt fiber cloth very well, 203 will not be covered under the compaction pressure of above-mentioned 10MPa~20MPa by the mechanical mechanics properties such as degree
Burst, it is ensured that four kinds of powder in cavity are in compacted state all the time before baked wheaten cake so that refractory insulating layer 2 has preferable
Insulating properties, will not be because of being hole between powder and conductive, and due to being basalt fibre material, and its fusing point is very high and height
Warm nature can will not be burnt and be broken or burnt leakage, it is ensured that four kinds of powder in cavity are begun during baked wheaten cake under fire burning very well
Compacted state, and four kinds of particle diameters of powder of control are in eventually more than the knitting eyelet of outer basalt fiber cloth set 203 so that powder
It is unlikely to be spilt from the knitting eyelet of outer basalt fiber cloth set；
Dimethyl silicone polymer ensure that four kinds of above-mentioned powder in process, in installation process and the later stage makes
Will not be absorbed water during and made moist, it is to avoid electrical insulating property declines after the powder moisture absorption of compacting；
When the refractory insulating layer 2 runs into high temperature to be burnt, silica flour and wollastonite in powder, silica flour and kaolin in cavity
Sintering porcelainization reaction can occur, these form eutectic and mix into the edge of porcelain powder in wollastonite in powder and kaolin powder between powder
Compound, these eutectic mixtures play bridge joint between quartz particles and wollastonite in powder and kaolin powder particles, in fire
At a temperature of calamity solidify, due to above-mentioned four kinds of powder be compacted before high temperature sintering outer basalt fiber cloth set 203 with it is interior
In closed cavity between basalt fiber cloth set 201, four kinds of powder each occupy respective space, one electric insulation of composition
Powder compact, in high-temperature sintering process there is no physical size consumption in four kinds of powder, still occupy respective space originally,
Along with powder compact also has certain shrinkage factor in sintering process, therefore, what is obtained after sintering porcelain is one than powder pressure
The sintering porcelain shell that base is more closely knit, porosity is lower；
The sintering porcelainization that glass can be reduced between silica flour and wollastonite in powder, silica flour and kaolin powder as flux is anti-
The temperature that should occur so that the refractory insulating layer 2 can occur sintering porcelain and protect the copper in it to lead at a lower temperature
Body 1, the high temperature of 1000 DEG C and the above is produced unlike traditional Ceramic silicon rubber composite band need to wait until that fire disaster flame fiercely burns
Porcelainization reaction can just occur so that the refractory insulating layer 2 not only can be with resistance to small-sized fire but also can be with resistance to large-sized fire；And glass
Silica flour, wollastonite in powder and kaolin powder can be connected into a compacting body, although this is closely knit by fusing point than relatively low after fusing
Body is not also porcelain compound, but the compacting body can also be protected to the copper conductor 1 in the Initial Stage of Fire of low temperature；
Because the sintering porcelain shell obtained after sintering porcelain is more closely knit than powder compact 202, porosity is lower, therefore, it is high
Warm insulating properties and fire resistance are higher than the high-temperature insulating quality and fire resistance of powder compact 202；With traditional ceramics SiClx rubber layer
Or the holey duricrust that obtains is compared after the burning of Ceramic silicon rubber composite band, it is clear that above-mentioned silica flour by compression consolidation,
Sintering porcelain shell that wollastonite in powder, kaolin powder and glass powder sintering porcelain are obtained is more closely knit, porosity is lower so that the burning
The high-temperature insulating quality and fire resistance of tying porcelain shell are significantly higher than the high-temperature insulating quality and fire resistance of above-mentioned holey shell such that it is able to
The normal transmission of copper conductor 1 preferably for a long time on the inside of protection is used.
To sum up, this application provides a kind of optical cable for intelligent grid, make full use of Ceramic silicon rubber layer and
The principle of the hot-face insulation of Ceramic silicon rubber composite band, on the premise of the hot-face insulation principle is not changed, by ceramic SiClx
Organic matter rubber in rubber removes, and the formula of the inorganic powder in Ceramic silicon rubber is optimized so that the photoelectricity
The refractory insulating layer 2 of the electric power core in cable issues the reaction of raw burn knot porcelainization in combustion high temperature, and what is obtained is one and compares powder compact
The sintering porcelain shell that 202 is more closely knit, porosity is lower, what is obtained is one than traditional ceramics SiClx rubber layer or Ceramic silicon rubber
The sintering porcelain shell that holey duricrust is more closely knit, porosity is lower obtained after composite band burning, considerably improves the electric power
The high-temperature insulating quality and fire resistance of core and optical cable under combustion high temperature.
Present invention also offers a kind of preparation method of above-mentioned optical cable for intelligent grid, comprise the following steps：
1) copper conductor 1 is taken；
One piece of basalt fiber cloth of strip is taken, the center line then gone up along its length is folded, and then uses basalt
Be combined for side seam on two length directions of the basalt fiber cloth by single, then removes unnecessary joining edge,
The interior basalt fiber cloth set 201 of hollow tubular is obtained, then by the one end on the length direction of interior basalt fiber cloth set 201
From interior basalt fiber cloth set 201 it is hollow in through with cause in basalt fiber cloth set 201 interior outside exchange and cause
For ensconced in the basalt fibre line that sutures the interior basalt fiber cloth set 201 it is hollow in, it is stand-by；
One piece of basalt fiber cloth of strip is taken, the center line then gone up along its length is folded, and then uses basalt
Be combined for side seam on two length directions of the basalt fiber cloth by single, then removes unnecessary joining edge,
The outer basalt fiber cloth set 203 of hollow tubular is obtained, then by the one end on the length direction of outer basalt fiber cloth set 203
From outer basalt fiber cloth set 203 it is hollow in through exchanged with the interior outside for causing outer basalt fiber cloth set 203 and so that
For ensconced in the basalt fibre line that sutures the outer basalt fiber cloth set 203 it is hollow in, it is stand-by；
And it is tight to control the internal diameter size that the interior basalt fiber cloth covers 201 to meet the interior basalt fiber cloth set 201
It is enclosed within the copper conductor 1, and controls the internal diameter of the outer basalt fiber cloth set 203 to be more than the interior basalt fiber cloth set
201 external diameter, and control the outer basalt fiber cloth set 203 and interior basalt fiber cloth to cover the big of 201 knitting eyelet
Less than the particle size of the silica flour, wollastonite in powder, kaolin powder and glass dust, to prevent powder from the outer Black Warrior
Spilt in the knitting eyelet of rock fiber cloth set 203 and interior basalt fiber cloth set 201；
Silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed, it is stand-by；
A hollow mould tube 6 is taken, and controls the internal diameter and the outer basalt fiber cloth set 203 of the mould tube 6
External diameter it is identical, and the mould tube 6 length to be provided with screw thread on 15cm, and the lower end outer circumference surface of the mould tube 6,
And the mould tube 6 is in vertically to being fixed in frame；
A hollow initial skirt is taken, and the internal diameter of the initial skirt is identical with the internal diameter of the mould tube 6, and institute
The external diameter for stating initial skirt is identical with the external diameter of the mould tube 6, and the length of the initial skirt is 5cm, and described initial
Screw thread is provided with the upper end outer circumferential face of skirt, and the lower end of the initial skirt is provided with for fastening the outer basalt
The fastening end cap of fiber cloth set 203, interior basalt fiber cloth set 201 and copper conductor 1；
2) by step 1) in described interior basalt fiber cloth set 201 be set in step 1) in copper conductor 1 on；
Then by step 1) in described outer basalt fiber cloth set 203 be set in the interior basalt fiber cloth set 201
On；
Then the described outer basalt fiber cloth being set-located is covered into 203, interior basalt fiber cloth set 201 and copper is led
Body 1 is inserted in the mould tube 6, is inserted into the initial skirt, most the outer basalt fiber cloth set 203, interior profound at last
The fastening end that military rock fiber cloth set 201 and copper conductor 1 are fixed on the initial skirt covers, then by nut screw connection institute
With mould tube 6 be threadedly coupled initial skirt with the screw thread of the lower end of the mould tube 6 by the screw thread for stating the upper end of initial skirt；
Then the free end on the length direction of outer basalt fiber cloth set 203 is turned up, exchanges its interior outside, always
Turn up up to the outer turn-line 204 on outer basalt fiber cloth set 203 close to the upper edge of the mould tube 6；
The part exposed outside the mould tube 6 of the copper conductor 1 is supported using a series of flat idler, it is described
The horizontal part of copper conductor 1 is connected by a bending section with the part inserted in the mould tube 6；
Ensure that the copper conductor 1 inserted in mould tube 6 is always positioned at the longitudinal center line of the mould tube 6 using guide roller
On；
3) to the mould tube 6 and the filling silica flour being well mixed, wollastonite in powder, kaolin powder, glass in initial skirt
Glass powder and dimethyl silicone polymer；
Then with smashing pressure pipe by silica flour, wollastonite in powder, kaolin powder, the glass in the mould tube 6 and initial skirt
Powder and dimethyl silicone polymer are compacted, control silica flour, wollastonite in powder, kaolin powder, glass dust and polydimethylsiloxanes
The filling amount of alkane is with so that upper edge 4cm~5cm of the powder compact 202 being compacted in rear mold pipe 6 away from mould tube 6；
Then screw on nut disconnects the threaded connection of mould tube 6 and initial skirt；
Then 5cm is moved straight down using batching the initial skirt of machine travel；
During initial skirt is moved straight down, drive outer basalt fiber cloth cover 203 outer turn-line 204 by
Gradually move up；
4) in the mould tube 6 again filling well mixed silica flour, wollastonite in powder, kaolin powder, glass dust with
And dimethyl silicone polymer；
Then use and smash pressure pipe by the silica flour in the mould tube 6, wollastonite in powder, kaolin powder, glass dust and poly- two
Methylsiloxane is compacted, the filling amount of control silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer
To cause upper edge 4cm~5cm of the powder compact 202 in compacting rear mold pipe 6 away from mould tube 6；
Then using batch the initial skirt of machine travel to away from mould tube 6 direction move 5cm；
Then repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction；
5) after the length of the copper conductor 1 with refractory insulating layer 2 pulled out from mould tube 6 meets bending radius,
Copper conductor 1 with refractory insulating layer 2 is bent into horizontal direction, is supported using a series of flat idler；
When the refractory insulating layer 2 produced closes on the free end of copper conductor 1, stop filling powder, then will be with fire resisting
The copper conductor 1 of insulating barrier 2 is exited from mould tube 6 along the pulling motion direction of script copper conductor 1, then remove fastening end cap with
And initial skirt, it is then resistance in the wrapped making in the two ends without powder compact 202 of copper conductor 1 with Ceramic silicon rubber composite band
Fiery insulating barrier 2, and control is wrapped in Ceramic silicon rubber with interior basalt fiber cloth set 201 by outer basalt fiber cloth set 203
Between composite band and copper conductor 1, electric power core is so far obtained；
6) take tight tube fiber, strengthen steel core 14, optical fiber filler 12 and optical fiber binder 9, then used with optical fiber
Binder 9 by the tight tube fiber, strengthen steel core 14 and optical fiber filler 12 and wrap up into a branch of, then used in the optical fiber
Ceramic silicon rubber layer 8 is extruded on the outer surface of binder 9, fiber cores are obtained；
Then the fiber cores, electric power core and cable core filler 13 are wrapped up into cable core binder 7 it is a branch of, so
Afterwards inner restrictive coating 3 is extruded on the outer surface of the cable core binder 7；
Then water blocking layer 4 and external sheath layer 5 are extruded successively from inside to outside in the outer surface of inner restrictive coating 3, is finally given
Optical cable.
The preparation method of mineral insulated cable of the prior art is mainly three kinds：The prefabricated Magnesium oxide knob insulator for most starting
The vertical bag argon arc welding welding continuous rolling method of method, later magnesia powder automatic filling method and newest copper strips.The application is provided
The preparation method of electric power core with reference to the magnesia automatic filling method of mineral insulated cable, the two different place is powder
Species is different, the wrappage of parcel powder is different and by parcel powder be that soft outer basalt fiber cloth covers 203 institutes
Part steps in caused production technology are different, the substantially phase of other steps and corresponding technological parameter in production technology
Together, the method and apparatus of not detailed description are referred to mineral insulated cable in the preparation method of the electric power core that the application is provided
Magnesia automatic filling method, obtains technical inspiration.
In the preparation method of the application, why with silica flour, wollastonite in powder, kaolin powder and glass dust, rather than
Magnesia powder is used as in mineral insulated cable, because：1. the principle of fire resisting both is different, is quartz in the application
The high temperature that powder, wollastonite in powder, kaolin powder and glass dust run into flame there occurs sintering porcelainization reaction, anti-using porcelainization is sintered
The product answered deprotects copper conductor 1 in it from burning, and the sintering porcelain shell obtained after sintering is than the powder compact before sintering
202 is finer and close, thus sintering after obtain sintering porcelain shell than the powder compact 202 before sintering electrical insulating property and fire resistance more
It is good, and magnesia powder is that sintering reaction does not occur when the high temperature of flame is run into, without there is physics before burning and after burning
Chemical change, its high-temp combustion for resisting flame with the high-melting-point (2852 DEG C) of oneself entirely；2. the magnesia powder easily moisture absorption, leads
Cause its electrical insulating property degradation after the moisture absorption, even blending moistureproof organic matter, moisture absorption phenomenon it is also obvious that cause processing,
Transport and storage cost are very high.
In the preparation method of the application, why cover 203 with outer basalt fiber cloth and wrap up powder compact 202, rather than
Copper pipe is used as in mineral insulated cable, because：If a copper pipe has the length isometric with target power core, example
Such as hundreds of meters or a few kms, it will naturally occur amount of deflection flexural deformation, and being now impossible be with target external diameter
Copper conductor 1 insert the copper pipe to remain concentric state, powder filling below compacting is in hundreds of meters or a few kms
Cannot even more be realized under length, smash pressure device and just cannot smoothly be moved between copper pipe and copper conductor 1 at all, run into amount of deflection bending
Will be stuck, so, three kinds of preparation methods of existing mineral insulated cable are entirely first with a very short but thicker copper
Conductor 1 is made a cable intermediate products with the unification equally very short but thicker copper pipe of root, then mechanical pull or continuously rolls again
System, rolls thin elongated, just obtains the mineral insulated cable of target external diameter size and length, for example：Magnesia powder automatic filling method
In, the copper pipe for most starting only has 9 meters, assembles rear drawing, most long also just to reach 700 meters, in this way, it is exhausted also to have led to mineral
The length of edge cable will not be very long；
And in the present invention, outer basalt fiber cloth covers 203 soft textures, can turn up, before beginning is filling, first will be outer profound
Free end on the length direction of military rock fiber cloth set 203 is turned up, and interior outside is exchanged, and is turned up always until outer basalt fiber cloth
Close to the upper edge of the mould tube 6, now, can contain powder only has mould tube 6 to outer turn-line 204 on set 203
The less space of this length, smash pressure pipe or it is similar smash pressure device can successfully pass in and out it is smaller in the mould tube 6
Space, smash pressure pipe and be often compacted once, then lift, then initial skirt hauls the powder compact being compacted in mould tube 6
202, to outgoing 5cm, now there remains the powder compact 202 of general 5cm or so, as the pad for smashing pressure next time in mould tube 6
Bottom, during to going out, outer basalt fiber cloth covers the outer turn-line 204 on 203 to the powder compact 202 in mould tube 6
Also 5cm can be moved up in the presence of the upper edge of mould tube 6, a space is vacated in such mould tube 6 again and is waited next
Secondary powder filling with smash pressure, so repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction, therefore reason
Produce that length is unrestricted by upper electric power core, also result in the application offer optical cable to produce length unrestricted.
In the application, outer basalt fiber cloth set 203 is with interior basalt fiber cloth set 201 due to being basalt fibre material
The mechanical mechanics properties such as matter, its tensile strength are fine, than the more resistance to drawing of copper sheath that magnesia powder is wrapped up in mineral insulated cable
With it is pressure-resistant, outer basalt fiber cloth set 203 will not be burst under the compaction pressure of above-mentioned 10MPa~20MPa, it is ensured that cavity
In four kinds of powder be in compacted state all the time before baked wheaten cake so that refractory insulating layer 2 has preferable insulating properties, will not be because of
Be hole between powder and conductive, and due to being basalt fibre material, its fusing point is very high and high-temperature behavior very well, compare ore deposit
The more resistance to baked wheaten cake of copper sheath of magnesia powder is wrapped up in thing insulated cable, broken or burning leakage will not be burnt under fire burning, it is ensured that
Four kinds of powder in cavity are in compacted state all the time during baked wheaten cake, and four kinds of particle diameters of powder of control are more than the outer Black Warrior
The knitting eyelet of rock fiber cloth set 203 so that powder is unlikely to be spilt from the knitting eyelet of outer basalt fiber cloth set 203.
In the application, the effect of mould tube 6 is the effect for serving as mould during press-powder end is smash, if without mould
Pipe 6, because outer basalt fiber cloth covers, 203 quality are softer, and it can deform during pressure is smash, and smash whole copper after the completion of pressure
The thickness of the powder compact 202 on the circumferential surface of conductor 1 will be uneven consistent.
In the application, the functioning as of initial skirt most starts to smash a pressure-bearing device of pressure, outer basalt for the first time
Fiber cloth set 203 is opening with the lower end of interior basalt fiber cloth set 201, if without initial skirt, first time filling powder
End, powder will all be missed from following outlet, be that this application is provided with initial skirt, block outer basalt fiber cloth set
The lower ending opening in the space between 203 and interior basalt fiber cloth set 201, for accepting filling powder, is also used for smashing pressure
Pipe smashes the lower bolster of pressure for the first time；Its another effect is to cover tightly admittedly described outer basalt fiber cloth using fastening end thereon
Set 203, interior basalt fiber cloth covers 201 and copper conductor 1, it is preferred that outer basalt fiber cloth covers 203 and interior basalt cloth
Set only two ends are fastened on fastening end and cover, and remainder keeps internal diameter constant with external diameter, in case the powder obtained after pressure is smash in influence
The uniformity of the thickness on the circumferential surface of last pressed compact 202, then, after the completion of pressure is smash in mould tube 6, initial skirt can also be made
It is a drawing head, hauls the copper conductor 1 with powder compact 202 and be moved rearwards by.
In the preparation method of the application, maximum innovative point is exactly by the length direction of outer basalt fiber cloth set 203
Free end turn up, make its interior outside exchange, turn up always until outer basalt fiber cloth set 203 on outer turn-line 204 connect
The upper edge of the nearly mould tube 6, mating mold pipe 6, built in mould tube 6 length very little wait smash pressure space
(smash pressure for the first time and be about 10cm, smash pressure every time later and be about 5cm), so smashes pressure pipe or similar pressure device of smashing can be with
Successfully pass in and out carries out smashing pressure in the mould tube 6, thoroughly solves the magnesia powder automatic filling method of above-mentioned mineral insulated cable
In the problem that cannot be processed due to amount of deflection flexural deformation, because copper conductor 1 now used is the copper conductor 1 of target thickness,
The external diameter of outer basalt fiber cloth set 203 is the external diameter of target refractory insulating layer 2, smashes after the completion of pressure without drawing again or rolls
System, it is time saving and energy saving, save great amount of cost.
After pressure certain length is smash, the copper conductor 1 not wrapped up by powder compact 202 is the level of state by a series of level
Carrying roller supports (i.e. the copper conductor 1 of the upstream of mould tube 6 is the level of state), and the copper conductor 1 for having been wrapped up by powder compact 202 is also in
Horizontality supports (i.e. the copper conductor 1 in the downstream of mould tube 6 is the level of state) by a series of flat idler, and mould tube 6 begins
Eventually for vertically to, in this way, from terms of the whole length direction of copper conductor 1, just constitute a class zigzag, an occupancy level space,
Vertical space is prevented take up, it is convenient to build factory building and location production unit.
Since being filling powder during the basalt fiber cloth being all open to two ends covers, it is necessary in outer basalt fiber cloth set
203 two ends carry out sealing treatment, and the two ends for also having led to copper conductor 1 cannot be wrapped up by powder compact 202：Just
The presence of beginning skirt causes that one end of copper conductor 1 cannot be wrapped up by powder compact 202, and when the refractory insulating layer produced
2 close on copper conductor 1 free end when, it is also inconvenient to carry out powder filling and smash pressure, therefore, in the application, when the fire resisting produced is exhausted
When edge layer 2 closes on the free end of copper conductor 1, stop filling powder, then by the copper conductor 1 with refractory insulating layer 2 from mould
Pulling motion direction in pipe 6 along script copper conductor 1 is exited, and fastening end cap and initial skirt is then removed, then with ceramics
SiClx rubber composite belt copper conductor 1 the two ends without powder compact 202 it is wrapped make refractory insulating layer 2, and control will be outer
Basalt fiber cloth set 203 and interior basalt fiber cloth set 201 are wrapped between Ceramic silicon rubber composite band and copper conductor 1,
Outer basalt fiber cloth set 203 and interior basalt fiber cloth are covered the two of 201 using the winding of Ceramic silicon rubber composite band
Side pressure tightening seal is between Ceramic silicon rubber composite band and copper conductor 1.
To sum up, the application first provide a kind of optical cable for intelligent grid, make full use of Ceramic silicon rubber layer with
And the principle of the hot-face insulation of Ceramic silicon rubber composite band, on the premise of the hot-face insulation principle is not changed, by ceramic
Organic matter rubber in silicon rubber removes, and the formula of the inorganic powder in Ceramic silicon rubber is optimized so that fire resisting
Insulating barrier 2 issues the reaction of raw burn knot porcelainization in combustion high temperature, obtain be that one more closely knit than powder compact 202, porosity more
Low sintering porcelain shell, a holey than being obtained after traditional ceramics SiClx rubber layer or the burning of Ceramic silicon rubber composite band
The sintering porcelain shell that duricrust is more closely knit, porosity is lower, considerably improves the electric power core and optical cable under combustion high temperature
High-temperature insulating quality and fire resistance.Further, present invention also provides the preparation method of the above-mentioned optical cable for intelligent grid,
The preparation method with reference to the magnesia automatic filling method of mineral insulated cable, but with magnesia automatic filling method not fully phase
Together, but powder sort is different, parcel powder wrappage is different and due to parcel powder be fine soft outer basalt
The part steps in production technology caused by Wei Bu sets 203 are different so that electric power core without drawing again or rolling, in theory
The electric power core and the length of optical cable that can be produced are unrestricted, time saving and energy saving, cost-effective, improve production capacity.
The method and apparatus of the not detailed description of the present invention are prior art, repeat no more.
Specific embodiment used herein is set forth to principle of the invention and implementation method, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept.It should be pointed out that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these change
Enter and modify to also fall into the protection domain of the claims in the present invention.
Claims (4)
1. the preparation method of a kind of optical cable for intelligent grid, it is characterised in that comprise the following steps：
1) copper conductor is taken；
One piece of basalt fiber cloth of strip is taken, the center line then gone up along its length is folded, and then uses basalt fibre
Be combined for side seam on two length directions of the basalt fiber cloth by line, then removes unnecessary joining edge, obtains
The interior basalt fiber cloth set of hollow tubular, then by one end on the length direction of interior basalt fiber cloth set from interior basalt
Fiber cloth set it is hollow in through with cause in basalt fiber cloth cover interior outside exchange and cause for suture basalt
Ensconce in single the interior basalt fiber cloth set it is hollow in, it is stand-by；
One piece of basalt fiber cloth of strip is taken, the center line then gone up along its length is folded, and then uses basalt fibre
Be combined for side seam on two length directions of the basalt fiber cloth by line, then removes unnecessary joining edge, obtains
The outer basalt fiber cloth set of hollow tubular, then by one end on the length direction of outer basalt fiber cloth set from outer basalt
Fiber cloth set it is hollow in through being exchanged with the interior outside for outer basalt fiber cloth is covered and cause the basalt for suture
Ensconce in single the outer basalt fiber cloth set it is hollow in, it is stand-by；
And the internal diameter size of the control interior basalt fiber cloth set meets the interior basalt fiber cloth set and is tightly placed in the copper
On conductor, and the external diameter of the internal diameter more than the interior basalt fiber cloth set of the outer basalt fiber cloth set is controlled, and controlled
The size of the knitting eyelet of the outer basalt fiber cloth set and interior basalt fiber cloth set is less than the silica flour, wollastonite
The particle size of powder, kaolin powder and glass dust, to prevent powder from the outer basalt fiber cloth set and interior basalt
Spilt in the knitting eyelet of fiber cloth set；
Silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed, it is stand-by；
A hollow mould tube is taken, and controls the internal diameter of the mould tube and the external diameter phase of the outer basalt fiber cloth set
Together, and the mould tube length to be provided with screw thread, and the mould on 15cm, and the lower end outer circumference surface of the mould tube
Pipe is in vertically to being fixed in frame；
A hollow initial skirt is taken, and the internal diameter of the initial skirt is identical with the internal diameter of the mould tube, and it is described first
The external diameter of beginning skirt is identical with the external diameter of the mould tube, and the length of the initial skirt is 5cm, and the initial skirt
Screw thread is provided with upper end outer circumferential face, and the lower end of the initial skirt is provided with for fastening the outer basalt fiber cloth
The fastening end cap of set, interior basalt fiber cloth set and copper conductor；
2) by step 1) in described interior basalt fiber cloth set be set in step 1) in copper conductor on；
Then by step 1) in described outer basalt fiber cloth set be set in the interior basalt fiber cloth and put；
Then the described outer basalt fiber cloth set being set-located, interior basalt fiber cloth are covered and copper conductor insertion is described
In mould tube, be inserted into the initial skirt, most at last the outer basalt fiber cloth set, interior basalt fiber cloth set and
The fastening end that copper conductor is fixed on the initial skirt covers, then by the spiral shell of the upper end of initial skirt described in nut screw connection
With mould tube be threadedly coupled initial skirt with the screw thread of the mould tube lower end by line；
Then the free end on length direction for outer basalt fiber cloth being covered is turned up, and exchanges its interior outside, turns up straight always
The outer turn-line put to outer basalt fiber cloth is close to the upper edge of the mould tube；
The part exposed outside the mould tube of the copper conductor, the copper conductor are supported using a series of flat idler
Horizontal part be connected with the part in the insertion mould tube by a bending section；
Ensure that inserting the copper conductor in mould tube is always positioned on the longitudinal center line of the mould tube using guide roller；
3) to the mould tube and the filling silica flour being well mixed, wollastonite in powder, kaolin powder, glass dust in initial skirt with
And dimethyl silicone polymer；
Then with smash pressure pipe by the silica flour in the mould tube and initial skirt, wollastonite in powder, kaolin powder, glass dust and
Dimethyl silicone polymer is compacted, the filling of control silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer
Loading amount is with so that upper edge 4cm~5cm of the powder compact being compacted in rear mold pipe away from mould tube；
Then screw on nut disconnects the threaded connection of mould tube and initial skirt；
Then 5cm is moved straight down using batching the initial skirt of machine travel；
During initial skirt is moved straight down, the outer turn-line of outer basalt fiber cloth set is driven gradually to move upwards
It is dynamic；
4) to filling well mixed silica flour, wollastonite in powder, kaolin powder, glass dust and poly- two again in the mould tube
Methylsiloxane；
Then use and smash pressure pipe by the silica flour in the mould tube, wollastonite in powder, kaolin powder, glass dust and poly dimethyl silicon
Oxygen alkane is compacted, and controls the filling amount of silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer to cause
It is compacted upper edge 4cm~5cm of the powder compact in rear mold pipe away from mould tube；
Then using batch the initial skirt of machine travel to away from mould tube direction move 5cm；
Then repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction；
5) after the length of the copper conductor with refractory insulating layer pulled out from mould tube meets bending radius, with fire resisting
The copper conductor of insulating barrier is bent into horizontal direction, is supported using a series of flat idler；
When the refractory insulating layer produced closes on the free end of copper conductor, stop filling powder, then will be with refractory insulating layer
Copper conductor exited along the pulling motion direction of script copper conductor from mould tube, then remove fastening and end cap and initially draw
Pipe, then with Ceramic silicon rubber composite band copper conductor the wrapped making refractory insulating layer in the two ends without powder compact, and
Control is wrapped between Ceramic silicon rubber composite band and copper conductor by outer basalt fiber cloth set and interior basalt fiber cloth set,
So far electric power core is obtained；
6) take tight tube fiber, strengthen steel core, optical fiber filler and binder, then with optical fiber binder by the tight set
Optical fiber, strengthen steel core and optical fiber filler and wrap up into a branch of, then extruded on the outer surface of the optical fiber binder
Ceramic silicon rubber layer, obtains fiber cores；
Then the fiber cores, electric power core and cable core filler are wrapped up into cable core binder it is a branch of, then in institute
Inner restrictive coating is extruded on the outer surface for stating cable core binder；
Then water blocking layer and external sheath layer are extruded successively from inside to outside in the outer surface of inner restrictive coating, finally gives optical cable.
2. optical cable according to claim 1, it is characterised in that the water blocking layer is two-sided waterstop to overlap wrapped side
The wrapped outer surface in the inner restrictive coating of formula is constituted.
3. optical cable according to claim 1, it is characterised in that the inner restrictive coating is polyvinyl chloride material.
4. optical cable according to claim 1, it is characterised in that the external sheath layer is low smoke, zero halogen polyolefin flame-retardant shield
Jacket layer.
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| RU2686306C1 (en) * | 2018-03-29 | 2019-04-25 | Андрей Витальевич Андреев | Current-conducting core with incombustible coating |
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| RU2686306C1 (en) * | 2018-03-29 | 2019-04-25 | Андрей Витальевич Андреев | Current-conducting core with incombustible coating |
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| CN106710698B (en) | 2018-01-26 |
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