CN105810317A - Small cross section super flexible waterproof cable and preparation method thereof - Google Patents
Small cross section super flexible waterproof cable and preparation method thereof Download PDFInfo
- Publication number
- CN105810317A CN105810317A CN201410854545.9A CN201410854545A CN105810317A CN 105810317 A CN105810317 A CN 105810317A CN 201410854545 A CN201410854545 A CN 201410854545A CN 105810317 A CN105810317 A CN 105810317A
- Authority
- CN
- China
- Prior art keywords
- conductor
- cable
- layer
- blocking layer
- water blocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 203
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 230000000903 blocking effect Effects 0.000 claims description 65
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 32
- 230000004888 barrier function Effects 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 17
- 229920000098 polyolefin Polymers 0.000 claims description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 16
- 239000003063 flame retardant Substances 0.000 claims description 16
- 239000000779 smoke Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 238000005491 wire drawing Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000010949 copper Substances 0.000 description 12
- 230000008595 infiltration Effects 0.000 description 12
- 238000001764 infiltration Methods 0.000 description 12
- 238000000137 annealing Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a small cross section super flexible waterproof cable and a preparation method thereof. The small cross section super flexible waterproof cable comprises a cable inner core, an external water resistance layer and an insulating layer, wherein the external water resistance layer and the insulating layer sequentially cover the cable inner core from inside to outside. The cable inner core is formed by sequentially stacking and coating a number of conductor layers. Each conductor layer comprises a first conductor layer and a number of second conductor layers which sequentially cover the first conductor layer. An internal water resistance layer is arranged between two adjacent conductor layers. The cross section area of the cable inner core is more than 10mm<2>. According to the invention, an internal water resistance layer is wrapped between two adjacent conductor layers; the conductor layers can be fixed and are prevented from loosening; water infiltrating into the cable can be absorbed; the internal water resistance layers which absorb water can expand more than twice their size; radial seepage of the cable can be effectively prevented; vertical seepage of the cable can be absorbed; and conductor oxidizing is prevented.
Description
Technical field
The present invention relates to power cable technical field, more particularly, it relates to a kind of super soft water-proof cable of small bore and preparation method thereof.
Background technology
Needs along with social development, the use occasion of plant equipment and electronic product is more and more extensive, relate to the Special use occasion such as open air (drenching with rain), humidity, while the own performance requirement harshness of plant equipment and electronic product, the waterproof requirement as the matching used electric wire of auxiliary is also improved accordingly.
Domestic at present the single water-proof wire more than 10 square millimeters is amassed for cross-sectional area of conductor it be generally adopted radially waterproof, namely adopt TPO insulant waterproof.There is water, steam and easily penetrate into conductor by conductor gap in aforesaid way, thus causing conductor indium, affects the problems such as conductor performance.
Summary of the invention
The technical problem to be solved in the present invention is in that, for drawbacks described above of the prior art, it is provided that a kind of super soft water-proof cable of small bore and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of super soft water-proof cable of small bore is provided, including cable inner core, and is coated on the outer water blocking layer outside described cable inner core and insulating barrier from inside to outside successively；Described cable inner core is stacked gradually cladding by multiple conductor layers and forms, described conductor layer includes the first conductor layer and multiple the second conductor layer being coated on successively outside described first conductor layer, being provided with interior water blocking layer described in adjacent two between conductor layer, the sectional area of described cable inner core is more than 10mm2；Described first conductor layer is formed by many first conductor strand, and described second conductor layer includes many second conductors, and described many second conductors are evenly coated at outside described first conductor layer, and the filament diameter of described first conductor and described second conductor is respectively less than 1.7mm.
In the super soft water-proof cable of small bore of the present invention, described interior water blocking layer and outer water blocking layer form by waterstop is wrapped.
In the super soft water-proof cable of small bore of the present invention, the thickness of described interior water blocking layer is 0.5mm～0.8mm.
In the super soft water-proof cable of small bore of the present invention, the thickness of described outer water blocking layer is 0.5mm～1mm.
In the super soft water-proof cable of small bore of the present invention, described first conductor and the second conductor form by many copper wire bundle strands, and the filament diameter of described copper wire is less than 0.18mm.
In the super soft water-proof cable of small bore of the present invention, the monofilament percentage elongation of described copper wire is more than 20%.
In the super soft water-proof cable of small bore of the present invention, described insulating barrier is made up of halogen-free and low-smoke flame-retardant polyolefin composite.
In the super soft water-proof cable of small bore of the present invention, the thickness of described insulating barrier is 1mm～2mm.
In the super soft water-proof cable of small bore of the present invention, described halogen-free and low-smoke flame-retardant polyolefin composite includes by mass fraction: EVA40～60 part, Mg (OH)2Or AL (OH)3160～190 parts, LDPE30～50 part, compatilizer 5～20 parts, synergist 2～4 parts and stabilizer 0.5～1 part.
The preparation method that the present invention also provides for the super soft water-proof cable of a kind of small bore, comprises the following steps:
Prepared by S1, conductor: by conductor material through wire drawing, stranded after, respectively obtain the first conductor and the second conductor；
Prepared by S2, cable inner core: many described first conductor strand are formed the first conductor layer, multiple second conductor layer it is coated with successively outside described first conductor layer, described second conductor layer is made up of many described second conductors, and wrapped interior water blocking layer between adjacent two conductor layers, to form cable inner core；
S3, wrapped outer water blocking layer: being evenly coated at by outer water blocking layer outside described cable inner core, described outer water blocking layer is formed by waterstop is wrapped；
S4, extruded insulation layer: adopt the mode of extruding to be evenly coated at outside described outer water blocking layer by the insulating barrier prepared by halogen-free and low-smoke flame-retardant polyolefin composite.
In sum, implementing super soft water-proof cable of small bore and preparation method thereof of the present invention, have the advantages that first, the first conductor and the second conductor form by many soft copper wire bundles strands, with increase cable flexibility or can curvature.The conductor flexibility stranded by many single lines be good, can curvature big, when conductor bends, inside and outside conductor centrage, two parts can be mutually shifted compensation, will not cause the plastic deformation of conductor during bending so that flexibility and the stability of conductor are greatly improved.Secondly, by by wrapped for interior water blocking layer between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, can also absorb the moisture penetrated in cable, and can expand after water suction after the water suction of interior water blocking layer own vol times more than, can effectively intercept the radial direction infiltration of cable, can also absorbing cable longitudinal direction infiltration, it is prevented that conductor is oxidized.3rd, cable inner core is coated with waterstop, and the water absorption of this waterstop is strong, more than 40 times of own vol can be expanded after water suction, this waterstop can intercept the radial direction infiltration of cable, it is possible to the longitudinal direction infiltration of absorbing cable, reaches the effect of cable radially and longitudinally omnibearing stereo waterproof.Finally, insulating barrier uses halogen-free and low-smoke flame-retardant polyolefin composite, can not only meet outside general fire resistance, also have certain water resistance, can effectively prevent moisture content from radially penetrating into inside cable, thus extending the service life of drag chain cable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the super soft water-proof cable of small bore that one of present pre-ferred embodiments provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
As it is shown in figure 1, the super soft water-proof cable of a kind of small bore that present pre-ferred embodiments provides, this cable includes cable inner core 1, and is coated on the outer water blocking layer 2 outside cable inner core 1 and insulating barrier 3 from inside to outside successively.Wherein, cable inner core 1 is stacked gradually cladding by multiple conductor layers and forms, conductor layer includes the first conductor layer 11 and multiple the second conductor layer 12 being coated on successively outside the first conductor layer 11, is provided with interior water blocking layer 13 between adjacent two conductor layers, and the sectional area of cable inner core 1 is more than 10mm2。
Concrete, first conductor layer 11 is formed by many first conductors 111 are stranded, second conductor layer 12 includes many second conductors 121, and many second conductors 121 are evenly coated at outside the first conductor layer 11, and the filament diameter of the first conductor 111 and the second conductor 121 is respectively less than 1.7mm.
In the present embodiment, the first conductor 111 and the second conductor 121 form by many soft copper wire bundles strands, with increase cable flexibility or can curvature.The conductor flexibility stranded by many single lines be good, can curvature big, when conductor bends, inside and outside conductor centrage, two parts can be mutually shifted compensation, will not cause the plastic deformation of conductor during bending so that flexibility and the stability of conductor are greatly improved.
Further, in the present embodiment, the copper wire of each described jewelry, expensive clothing and other valuables is annealing copper free wire, owing to annealing copper free wire is oxygen-free also fine copper without any deoxidizer residue, therefore its electricapparatus performance is extremely excellent, and the monofilament percentage elongation of copper free wire is more than 20%, monofilament percentage elongation height illustrates that copper wire is soft, ductility strong, and bend resistance ability is strong.
Being different from blister copper silk of the prior art, the filament diameter of copper wire used herein is respectively less than 1.7mm；Preferably, the filament diameter of copper wire is less than 1.6mm；In the present embodiment, the filament diameter of copper wire is 1.5mm.Owing in the present invention, the filament diameter of copper wire is little, needed for making to make the conductor of same external diameter the quantity of copper wire much larger than in prior art the quantity of the required blister copper silk used, so can external force suffered by effective dispersed cable, therefore, the electric conductivity of conductor of the present invention is strong, is not easy fracture without Hydrogen Brittleness Phenomena, has extremely strong bend resistance ability, will not rupture after coming and going bending motion for million times through exceedance, and then guarantee that the physically and electrically performance of cable is unaffected.
In addition, the mode bundle that above-mentioned many soft copper wires adopt armour stranded is stranding into the first conductor 111 and the second conductor 121, to guarantee that the conductor prepared has stronger intensity and bending ability, time stranded, the bundle of copper wire twists 10 times of the twisting pitch stranded external diameter less than or equal to copper wire, and the bundle strand direction of lay of many copper wires is left-hand.
As it is shown in figure 1, the first conductor layer 11 is formed by many first conductors 111 are stranded, in the present embodiment, the direction of lay of many first conductors 111 is contrary with the direction of lay of many copper wires.
Preferably, first conductor layer 11 had same outer diameter, identical direction of lay by many, and the first conductor 111 twisting of identical twisting pitch prepares, it can be ensured that first conductor 111 uniform stressed in the back and forth movement of cable in this first conductor layer 11, effectively strengthen the ability of cable bending.
Preferably, in the present embodiment, the first conductor layer 11 is seven, so that the first conductor layer 11 constitutes rounded configurations arrangement, thus strengthening adaptive capacity and the scope of application of cable.
As shown in Figure 1, interior water blocking layer 13 is evenly coated at outside the first conductor layer 11, this interior water blocking layer 13 is formed by waterstop is wrapped, waterstop is to realize the major way that conductor blocks water, the water absorption of waterstop is strong, and can expand more than 40 times of own vol after water suction, can effectively intercept the radial direction infiltration of cable, can also absorbing cable longitudinal direction infiltration, play the effect of dual water suction.In the present embodiment, the thickness of interior water blocking layer 13 is 0.5mm～0.8mm, it is preferable that the thickness of water blocking layer 2 is 0.6mm.
Further, the second conductor layer 12 is evenly coated at outside interior water blocking layer 13, and this second conductor layer 12 is made up of many second conductors 121.Preferably, many second conductors 121 are evenly distributed on the outer surface of interior water blocking layer 13 successively, so that the second conductor layer 12 constitutes rounded configurations arrangement, thus strengthening adaptive capacity and the scope of application of cable.
In the present embodiment, second conductor layer 12 is outer is also coated with an interior water blocking layer 13 and the second conductor layer 12 successively, namely cable inner core 1 includes the first conductor layer 11 and two the second conductor layers 12 being coated on successively outside the first conductor layer 11, it is provided with interior water blocking layer 13 between the first conductor layer 11 and the second conductor layer 12, between adjacent two second conductor layers 12, also is provided with interior water blocking layer 13.By by interior water blocking layer 13 around wrapping between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, the moisture penetrated in cable can also be absorbed, and more than 40 times of own vol after the water suction of interior water blocking layer 13, after water suction, can be expanded, can effectively intercept the radial direction infiltration of cable, it is also possible to the longitudinal direction infiltration of absorbing cable, it is prevented that conductor is oxidized.
Can to be understood by, the present embodiment does not limit the particular number of the second conductor layer 12, according to the actually required quantity increasing by the second conductor layer 12, the first conductor layer 11 and three the second conductor layers 12 being coated on successively outside the first conductor layer 11 can also be included such as cable inner core 1.
As it is shown in figure 1, be uniformly coated with outer water blocking layer 2 outside cable inner core 1, this outer water blocking layer 2 is also formed by waterstop is wrapped, to play the effect of dual water suction.In the present embodiment, the thickness of outer water blocking layer 2 is 0.5mm～1mm, it is preferable that the thickness of water blocking layer 2 is 0.8mm.
As it is shown in figure 1, outer water blocking layer 2 is coated with insulating barrier 3, in the present embodiment, insulating barrier 3 is made up of halogen-free and low-smoke flame-retardant polyolefin composite, to meet anti-flammability and the water proofing property of cable.Wherein, halogen-free and low-smoke flame-retardant polyolefin composite is made up of the raw material of following parts by weight: EVA40～60 part, Mg (OH)2Or AL (OH)3160～190 parts, LDPE30～50 part, compatilizer 5～20 parts, synergist 2～4 parts and stabilizer 0.5～1 part.
Being different from traditional fire proofing, this halogen-free and low-smoke flame-retardant polyolefin composite is possible not only to meet outside the general fire resistance of cable, also has certain water resistance, can effectively prevent water from radially penetrating into inside cable.In addition; this halogen-free and low-smoke flame-retardant polyolefin composite greatly improves the ageing resistance of cable; and improve hot strength; enhance the overall flexibility of cable; insulating barrier 3 is made can better to protect conductor; avoid destroying the insulating properties of cable because insulating barrier 3 weares and teares, thus causing potential safety hazard.
In the present embodiment; the thickness of insulating barrier 3 is 1mm～2mm; the insulating barrier 3 made due to halogen-free and low-smoke flame-retardant polyolefin composite has stronger pliability and wearability; the thickness making traditional polyvinyl chloride insulation layer need to reach more than a times of herein described insulating barrier 3 thickness, just can have the protected effect identical with the application insulating barrier 3.Preferably, the thickness of insulating barrier 3 is 0.8mm.
The preparation method that the application also provides for the super soft water-proof cable of a kind of small bore, owing to the process control condition in the super soft water-proof cable preparation process of small bore is prior art, does not repeat them here.Wherein, described preparation method comprises the following steps:
Prepared by S1, conductor: by conductor material through wire drawing, stranded after, respectively obtain the first conductor 111 and the second conductor 121.
Concrete, the preparation of conductor includes three sub-steps: select materials, wire drawing and stranded.Select materials: select the conductor material used according to the requirement of the different cable of preparation, as selected electrician's round copper rod as conductor material；Wire drawing: conductor material carries out wire drawing, annealing obtains annealing copper free wire, and the diameter of this annealing copper free wire is 1.5mm；Stranded: annealing copper free wire wire drawing obtained adopts the stranded mode bundle strand of armour to be respectively prepared the first conductor 111 and the second conductor 121.
Prepared by S2, cable inner core: by many first conductor 111 stranded formation the first conductor layers 11.Concrete, kink formation the first conductor layer 11 by many prepared first conductors 111, and the direction of lay of many first conductors 111 is contrary with the direction of lay of many copper wires.
Being coated with multiple second conductor layer 12 successively outside the first conductor layer 11, the second conductor layer 12 is made up of many second conductors 121, wrapped interior water blocking layer 13 between adjacent two conductor layers, and to form cable inner core 1, this interior water blocking layer 13 is waterstop.
S3, wrapped outer water blocking layer: be evenly coated at outside cable inner core 1 by outer water blocking layer 2, outer water blocking layer 2 is formed by waterstop is wrapped；
S4, extruded insulation layer: adopt the mode of extruding to be evenly coated at outside outer water blocking layer 2 by the insulating barrier 3 prepared by halogen-free and low-smoke flame-retardant polyolefin composite.
Embodiment 1
Prepared by S1, conductor: by conductor material through wire drawing, stranded after, respectively obtain the first conductor 111 and the second conductor 121；
Prepared by S2, cable inner core: by many first conductor 111 stranded formation the first conductor layers 11, multiple second conductor layer 12 it is coated with successively outside the first conductor layer 11, second conductor layer 12 is made up of many second conductors 121, and wrapped interior water blocking layer 13 between adjacent two conductor layers, to form cable inner core 1；
S3, wrapped outer water blocking layer: be evenly coated at outside cable inner core 1 by outer water blocking layer 2, outer water blocking layer 2 is formed by waterstop is wrapped；
S4, extruded insulation layer: adopt the mode of extruding to be evenly coated at outside outer water blocking layer 2 by the insulating barrier 3 prepared by halogen-free and low-smoke flame-retardant polyolefin composite；
Wherein, EVA40 part, Mg (OH)2160 parts, LDPE50 part, compatilizer 15 parts, synergist 2 parts and stabilizer 1 part.
Embodiment 2
Prepared by S1, conductor: by conductor material through wire drawing, stranded after, respectively obtain the first conductor 111 and the second conductor 121；
Prepared by S2, cable inner core: by many first conductor 111 stranded formation the first conductor layers 11, multiple second conductor layer 12 it is coated with successively outside the first conductor layer 11, second conductor layer 12 is made up of many second conductors 121, and wrapped interior water blocking layer 13 between adjacent two conductor layers, to form cable inner core 1；
S3, wrapped outer water blocking layer: be evenly coated at outside cable inner core 1 by outer water blocking layer 2, outer water blocking layer 2 is formed by waterstop is wrapped；
S4, extruded insulation layer: adopt the mode of extruding to be evenly coated at outside outer water blocking layer 2 by the insulating barrier 3 being passed low cigarette combustion composite polyolefine material prepared by Halogen；
Wherein, EVA60 part, Mg (OH)2190 parts, LDPE30 part, compatilizer 5 parts, synergist 4 parts and stabilizer 0.5 part.
Embodiment 2
Prepared by S1, conductor: by conductor material through wire drawing, stranded after, respectively obtain the first conductor 111 and the second conductor 121；
Prepared by S2, cable inner core: by many first conductor 111 stranded formation the first conductor layers 11, multiple second conductor layer 12 it is coated with successively outside the first conductor layer 11, second conductor layer 12 is made up of many second conductors 121, and wrapped interior water blocking layer 13 between adjacent two conductor layers, to form cable inner core 1；
S3, wrapped outer water blocking layer: be evenly coated at outside cable inner core 1 by outer water blocking layer 2, outer water blocking layer 2 is formed by waterstop is wrapped；
S4, extruded insulation layer: adopt the mode of extruding to be evenly coated at outside outer water blocking layer 2 by the insulating barrier 3 prepared by halogen-free and low-smoke flame-retardant polyolefin composite；
Wherein, EVA50 part, Mg (OH)2170 parts, LDPE40 part, compatilizer 10 parts, synergist 2 parts and stabilizer 0.5 part.
In sum, implement super soft water-proof cable of small bore of the present invention and preparation method thereof, have the advantages that
(1) first conductor and the second conductor form by many soft copper wire bundles strands, with increase cable flexibility or can curvature.The conductor flexibility stranded by many single lines be good, can curvature big, when conductor bends, inside and outside conductor centrage, two parts can be mutually shifted compensation, will not cause the plastic deformation of conductor during bending so that flexibility and the stability of conductor are greatly improved.
(2) pass through wrapped for interior water blocking layer between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, the moisture penetrated in cable can also be absorbed, and can expand after water suction after the water suction of interior water blocking layer own vol times more than, can effectively intercept the radial direction infiltration of cable, it is also possible to the longitudinal direction infiltration of absorbing cable, it is prevented that conductor is oxidized.
(3) cable inner core is coated with waterstop, the water absorption of this waterstop is strong, can expand more than 40 times of own vol after water suction, and this waterstop can intercept the radial direction infiltration of cable, also can absorbing cable longitudinal direction infiltration, reach the effect of cable radially and longitudinally omnibearing stereo waterproof.
(4) insulating barrier uses halogen-free and low-smoke flame-retardant polyolefin composite, can not only meet outside general fire resistance, also have certain water resistance, can effectively prevent moisture content from radially penetrating into inside cable, thus extending the service life of drag chain cable.
Although the present invention is illustrated by specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, it is also possible to the present invention is carried out various conversion and equivalent replacement.It addition, for particular condition or material, it is possible to the present invention is made various amendment, without deviating from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should include the whole embodiments falling within the scope of the claims in the present invention.
Claims (10)
1. the super soft water-proof cable of small bore, it is characterised in that include cable inner core (1), and it is coated on the outer outer water blocking layer (2) of described cable inner core (1) and insulating barrier (3) from inside to outside successively；Described cable inner core (1) is stacked gradually cladding by multiple conductor layers and forms, described conductor layer includes the first conductor layer (11) and multiple the second conductor layer (12) being coated on described first conductor layer (11) successively outward, being provided with interior water blocking layer (13) described in adjacent two between conductor layer, the sectional area of described cable inner core (1) is more than 10mm2；Described first conductor layer (11) is formed by many first conductors (111) are stranded, described second conductor layer (12) includes many second conductors (121), described many second conductors (121) are evenly coated at described first conductor layer (11) outward, and the filament diameter of described first conductor (111) and described second conductor (121) is respectively less than 1.7mm.
2. the super soft water-proof cable of small bore according to claim 1, it is characterised in that described interior water blocking layer (13) and outer water blocking layer (2) form by waterstop is wrapped.
3. the super soft water-proof cable of small bore according to claim 2, it is characterised in that the thickness of described interior water blocking layer (13) is 0.5mm～0.8mm.
4. the super soft water-proof cable of small bore according to claim 2, it is characterised in that the thickness of described outer water blocking layer (2) is 0.5mm～1mm.
5. the super soft water-proof cable of small bore according to claim 1, it is characterised in that described first conductor (111) and the second conductor (121) form by many copper wire bundle strands, and the filament diameter of described copper wire is less than 0.18mm.
6. the super soft water-proof cable of small bore according to claim 5, it is characterised in that the monofilament percentage elongation of described copper wire is more than 20%.
7. the super soft water-proof cable of small bore according to claim 1, it is characterised in that described insulating barrier (3) is made up of halogen-free and low-smoke flame-retardant polyolefin composite.
8. the super soft water-proof cable of small bore according to claim 7, it is characterised in that the thickness of described insulating barrier (3) is 1mm～2mm.
9. the super soft water-proof cable of small bore according to claim 7, it is characterised in that described halogen-free and low-smoke flame-retardant polyolefin composite includes by mass fraction: EVA40～60 part, Mg (OH)2Or AL (OH)3160～190 parts, LDPE30～50 part, compatilizer 5～20 parts, synergist 2～4 parts and stabilizer 0.5～1 part.
10. the preparation method of the super soft water-proof cable of small bore, it is characterised in that comprise the following steps:
Prepared by S1, conductor: by conductor material through wire drawing, stranded after, respectively obtain the first conductor (111) and the second conductor (121)；
Prepared by S2, cable inner core: by many described first conductors (111) stranded formation the first conductor layer (11), multiple second conductor layer (12) it is coated with outward successively at described first conductor layer (11), described second conductor layer (12) is made up of many described second conductors (121), wrapped interior water blocking layer (13) between adjacent two conductor layers, to form cable inner core (1)；
S3, wrapped outer water blocking layer: outer water blocking layer (2) is evenly coated at described cable inner core (1) outward, described outer water blocking layer (2) is formed by waterstop is wrapped；
S4, extruded insulation layer: adopt the mode of extruding that the insulating barrier (3) prepared by halogen-free and low-smoke flame-retardant polyolefin composite is evenly coated at described outer water blocking layer (2) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854545.9A CN105810317A (en) | 2014-12-31 | 2014-12-31 | Small cross section super flexible waterproof cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854545.9A CN105810317A (en) | 2014-12-31 | 2014-12-31 | Small cross section super flexible waterproof cable and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105810317A true CN105810317A (en) | 2016-07-27 |
Family
ID=56465176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410854545.9A Pending CN105810317A (en) | 2014-12-31 | 2014-12-31 | Small cross section super flexible waterproof cable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105810317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229085A (en) * | 2016-07-28 | 2016-12-14 | 江苏长峰电缆有限公司 | A kind of preparation method of molded line aluminium alloy water-blocking conductor |
| CN109337337A (en) * | 2018-09-29 | 2019-02-15 | 安徽兆拓新能源科技有限公司 | A kind of preparation method of swimming pool water-proof cable |
-
2014
- 2014-12-31 CN CN201410854545.9A patent/CN105810317A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229085A (en) * | 2016-07-28 | 2016-12-14 | 江苏长峰电缆有限公司 | A kind of preparation method of molded line aluminium alloy water-blocking conductor |
| CN109337337A (en) * | 2018-09-29 | 2019-02-15 | 安徽兆拓新能源科技有限公司 | A kind of preparation method of swimming pool water-proof cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104715840B (en) | The maritime platform essential safe type oil resistant fireproof cable of resistance to mud and preparation technology | |
| CN104751943B (en) | Wear-resistant and pressure-resistant cable and preparation method thereof | |
| CN101707071B (en) | Low-smoke halogen-free light intrinsically-safe instrument flexible cable for ocean engineering | |
| CN105448412B (en) | Flat combination drag chain cable and preparation method thereof | |
| CN104376918A (en) | High-strength composite cable for vertical shaft and manufacturing method thereof | |
| CN105810317A (en) | Small cross section super flexible waterproof cable and preparation method thereof | |
| CN202694975U (en) | Power cable special for oil well | |
| CN102097177B (en) | Traveling power cable and preparation method thereof | |
| CN204463936U (en) | Novel computer transmission cable | |
| CN203085201U (en) | An instrument flat cable used in a petroleum platform | |
| CN204463898U (en) | New single core waterproof cable | |
| CN207651192U (en) | A kind of EMU single-core cable of the cross-linked elastomer insulation of special combustibility | |
| CN207572119U (en) | A kind of New-energy electric vehicle environment friendly heat resistant high-tension cable | |
| CN105845263A (en) | Novel computer transmission cable and manufacturing method therefor | |
| CN204087878U (en) | A kind of signal controlling drag chain cable | |
| CN204440925U (en) | A kind of single core tension water-proof cable | |
| CN105810338A (en) | Composite waterproof cable and preparation method thereof | |
| CN214099201U (en) | High-performance mineral insulated cable | |
| CN105810333A (en) | Single-core flexible waterproof cable and production method thereof | |
| CN205508428U (en) | Two core photovoltaic cables of high performance tensile resistance to compression | |
| CN105957598A (en) | Chloroprene rubber filled waterproof cable and preparation method thereof | |
| CN208580616U (en) | A new type of portable cable | |
| CN105810351A (en) | Metro low frequency communication signal transmission cable and manufacturing method thereof | |
| CN202034118U (en) | Traveling power cable | |
| CN204463940U (en) | A control cable for torsion-resistant and anti-interference fan tower barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |
|
| RJ01 | Rejection of invention patent application after publication |