CN102842386A - Dual-core cable and manufacturing method thereof - Google Patents
Dual-core cable and manufacturing method thereof Download PDFInfo
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- CN102842386A CN102842386A CN2012103415572A CN201210341557A CN102842386A CN 102842386 A CN102842386 A CN 102842386A CN 2012103415572 A CN2012103415572 A CN 2012103415572A CN 201210341557 A CN201210341557 A CN 201210341557A CN 102842386 A CN102842386 A CN 102842386A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000004020 conductor Substances 0.000 claims abstract description 231
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 44
- 238000000576 coating method Methods 0.000 claims description 44
- 229920003023 plastic Polymers 0.000 claims description 34
- 239000004033 plastic Substances 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 28
- 241000108463 Hygrophila <snail> Species 0.000 claims description 25
- 229920001903 high density polyethylene Polymers 0.000 claims description 24
- 239000004700 high-density polyethylene Substances 0.000 claims description 24
- 229920001684 low density polyethylene Polymers 0.000 claims description 24
- 239000004702 low-density polyethylene Substances 0.000 claims description 24
- -1 polyethylene Polymers 0.000 claims description 24
- 239000004743 Polypropylene Substances 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 12
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 12
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 229920001179 medium density polyethylene Polymers 0.000 claims description 12
- 239000004701 medium-density polyethylene Substances 0.000 claims description 12
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 229920000098 polyolefin Polymers 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of wires and cables, and provides a dual-core cable. The dual-core cable comprises a first conductor, a second conductor and a sheathing layer, and is characterized by further comprising a cylindrical infill in the center, a first isolating bar and a second isolating bar, wherein the first conductor, the second conductor, the first isolating bar and the second isolating bar are all clung to the infill; the first isolating bar and the second isolating bar isolate the first conductor from the second conductor, and the first isolating bar, the second conductor, the second isolating bar and the first conductor are sequentially connected; the isolating bars and the sheathing layer are integrally formed; the first isolating bar and the second isolating bar protrude toward the infill from the inner wall of the sheathing layer; and the sheathing layer wraps the conductors; on any cross section, the curvature of the surfaces of the first isolating bar, the second isolating bar, the first conductor and the second conductor, which are clung to the outer surface of the infill, are equal. The dual-core cable has the benefits that the consumption of the sheathing layer of the product is low, the external diameter is smaller, all costs are lower, the production procedure is simpler and the production speed is higher.
Description
The application is that application number is: 201110226793.5, and the applying date is: on August 8th, 2011, denomination of invention is: the dividing an application of twin core cable and preparation method thereof.
Technical field
The invention belongs to technical field of electric wires and cables, especially twin core cable and preparation method thereof.
Background technology
In the prior art; Cable is widely used; 2 core cables commonly used are as depicted in figs. 1 and 2; Fig. 1 is a schematic perspective view, and Fig. 2 is the front view of Fig. 1, this cable be by first insulated wire cores of parallel placement and second insulated wire cores, and the integral coating restrictive coating 5 of living first insulated wire cores and second insulated wire cores constitute; First insulated wire cores is made up of first insulating barrier 11 that is positioned at the first inner conductor 12 and envelopes first conductor; Second insulated wire cores is made up of second insulating barrier 21 that is positioned at the second inner conductor 22 and envelopes second conductor.Because this kind cable is used for transmitting electric load, in order to reach insulating requirements, common first insulating barrier and second insulating barrier need reach the thickness of industry standard regulation, and under the same voltage withstand class, along with the increase of ampacity, the thickness of insulating barrier must thicken; On the other hand, have certain mechanical strength and anti-wear performance in order to make cable, so restrictive coating also need reach certain thickness.Therefore, the cost of this kind cable is higher.On the one hand, the conductor of this kind cable forms by tiny wire is stranded again, and a cable need be made through 2 synnemas, 2 minor insulation cores, 1 sheath extrudes so produce; Because the speed that insulated wire cores is made is slower, therefore, has restricted speed of production.
Summary of the invention
In order to address the above problem, one of the object of the invention provides the cheaper twin core cable of a kind of cost; Two of the object of the invention is that the insulated wire cores making step that reduces cable makes speed of production faster; Three of the object of the invention is the manufacture methods that disclose this kind cable, and they adopt following technical scheme to realize.
A kind of twin core cable includes first conductor 12, second conductor 22, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, second isolating bar 62; First conductor, second conductor, first isolating bar, second isolating bar all are close to obturator; First isolating bar, second isolating bar are kept apart first conductor and second conductor, and first isolating bar, second conductor, second isolating bar, first conductor link to each other successively; On arbitrary cross section, the upper surface 611 of first isolating bar and lower surface 612 all equate with the curvature of lower surface 612 to the center curvature and the upper surface 611 of obturator; On arbitrary cross section, the upper surface of second isolating bar all equates to the center curvature of obturator and the curvature on two surfaces with lower surface; On arbitrary cross section, the upper surface of first conductor all equates to the center curvature of obturator and the curvature on two surfaces with lower surface; On arbitrary cross section, the upper surface of second conductor all equates to the center curvature of obturator and the curvature on two surfaces with lower surface; Restrictive coating envelopes first isolating bar, second isolating bar, first conductor and second conductor.
Above-mentioned described twin core cable it is characterized in that also being coated with protective layer outside first isolating bar, second isolating bar, first conductor and second conductor, and protective layer is positioned within the restrictive coating.
Above-mentioned described twin core cable is characterized in that said protective layer is mica tape or PVC band or PP band.
A kind of twin core cable includes first conductor 12, second conductor 22, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, second isolating bar 62; First conductor, second conductor, first isolating bar, second isolating bar all are close to obturator; First isolating bar, second isolating bar are kept apart first conductor and second conductor, and first isolating bar, second conductor, second isolating bar, first conductor link to each other successively; First isolating bar, second isolating bar and restrictive coating are formed in one; First isolating bar, second isolating bar protrude to the obturator direction from the inwall of restrictive coating; Restrictive coating envelopes first conductor and second conductor; On arbitrary cross section, the curvature on the surface that first isolating bar, second isolating bar, first conductor, second conductor paste with the outer epiphase of obturator separately equates.
Above-mentioned described any twin core cable, the material that it is characterized in that said obturator are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable, the material that it is characterized in that said first isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable, the material that it is characterized in that said second isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable, the material that it is characterized in that said restrictive coating are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable is characterized in that said first conductor is metal bar or the complex that formed by the stranded moulding of many one metal wires.
Above-mentioned described any twin core cable is characterized in that said second conductor is metal bar or the composite conductor that formed by the stranded moulding of many one metal wires.
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Form the step of second isolating bar through plastic extruding machine;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Form the step of second isolating bar through plastic extruding machine;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; At first conductor, first isolating bar, second conductor, the second isolating bar outerwrap, one protective layer; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Through first isolating bar being cut the step that forms second isolating bar: first isolating bar is cut formation second isolating bar along symmetry axis perhaps the first isolating bar after-combustion is coiled on tool to another, cut off during to certain-length, remaining is second isolating bar;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Through first isolating bar being cut the step that forms second isolating bar: first isolating bar is cut formation second isolating bar along symmetry axis perhaps the first isolating bar after-combustion is coiled on tool to another, cut off during to certain-length, remaining is second isolating bar;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; At first conductor, first isolating bar, second conductor, the second isolating bar outerwrap, one protective layer; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of twin core cable: mould is installed on the sheath plastic extruding machine; Obturator is placed the filling body opening that is arranged in mould central authorities; First conductor, second conductor are placed on respectively among first conductor bores and second conductor bores of mould; First conductor bores and second conductor bores all are positioned at fills the body opening outside; First conductor bores and second conductor bores are disconnected mutually; First conductor bores, second conductor bores and filling body opening do not communicate, and form wall body of filling body opening and the wall body that forms first conductor bores and connect together, and the wall body that body opening is filled in formation connects together with the wall body that forms second conductor bores; And two gaps are arranged between the wall body of the wall body of first conductor bores and second conductor bores; Sheath is extruded on first conductor and second conductor when forming restrictive coating, and the gap has formed first isolating bar and second isolating bar, and two isolating bars are separated by first conductor and second conductor; First isolating bar, second isolating bar and restrictive coating are one.
In the product of the present invention; First conductor and the second conductor synnema are shaped to unique shape and are separated by first isolating bar and second isolating bar; Extrusion molding restrictive coating outside again, so the consumption of restrictive coating significantly reduces among the present invention, and the product external diameter is littler, cost is lower.The inventive method is simple, and operation is few, and has omitted slow-paced insulated wire cores manufacturing process, so speed of production is faster, production cost is lower.
The present invention has following beneficial effect: the consumption of product restrictive coating is few, and external diameter is thinner, and each item cost is lower, and production process is simpler, speed is faster.
Description of drawings
Fig. 1 is the part schematic perspective view of the twin core cable of prior art.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the perspective view that embodiment 1 local solution of the present invention is cut open.
Fig. 4 is the perspective view of the partly cut-away of first isolating bar used in the embodiment 1 of the present invention.
Fig. 5 is the front view after Fig. 4 amplifies.
Fig. 6 is the front view after Fig. 3 amplifies.
Fig. 7 is the perspective view that embodiment 2 local solutions of the present invention are cut open.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.Embodiment 1, embodiment 2 are the embodiment of product of the present invention; Embodiment 3～embodiment 7 is the embodiment of the inventive method.
Ask for an interview Fig. 3 to Fig. 6, and combine Fig. 1 and Fig. 2, a kind of twin core cable includes first conductor 12, second conductor 22, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, second isolating bar 62; First conductor, second conductor, first isolating bar, second isolating bar all are close to obturator; First isolating bar, second isolating bar are kept apart first conductor and second conductor, and first isolating bar, second conductor, second isolating bar, first conductor link to each other successively; On arbitrary cross section, the upper surface 611 of first isolating bar and lower surface 612 all equate with the curvature of lower surface 612 to the center curvature and the upper surface 611 of obturator; On arbitrary cross section, the upper surface of second isolating bar all equates to the center curvature of obturator and the curvature on two surfaces with lower surface; On arbitrary cross section, the upper surface of first conductor all equates to the center curvature of obturator and the curvature on two surfaces with lower surface; On arbitrary cross section, the upper surface of second conductor all equates to the center curvature of obturator and the curvature on two surfaces with lower surface; Restrictive coating envelopes first isolating bar, second isolating bar, first conductor and second conductor.
Above-mentioned described twin core cable it is characterized in that also being coated with protective layer outside first isolating bar, second isolating bar, first conductor and second conductor, and protective layer is positioned within the restrictive coating.
Above-mentioned described twin core cable is characterized in that said protective layer is mica tape or PVC band or PP band.
Embodiment 2
Ask for an interview Fig. 7, and combine Fig. 1 to Fig. 6, a kind of twin core cable includes first conductor 12, second conductor 22, restrictive coating 5; It is characterized in that also comprising one is positioned at central authorities and is columniform obturator 1, one piece first isolating bar 61, second isolating bar 62; First conductor, second conductor, first isolating bar, second isolating bar all are close to obturator; First isolating bar, second isolating bar are kept apart first conductor and second conductor, and first isolating bar, second conductor, second isolating bar, first conductor link to each other successively; First isolating bar, second isolating bar and restrictive coating are formed in one; First isolating bar, second isolating bar protrude to the obturator direction from the inwall of restrictive coating; Restrictive coating envelopes first conductor and second conductor; On arbitrary cross section, the curvature on the surface that first isolating bar, second isolating bar, first conductor, second conductor paste with the outer epiphase of obturator separately equates.
Above-mentioned described any twin core cable, the material that it is characterized in that said obturator are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable, the material that it is characterized in that said first isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable, the material that it is characterized in that said second isolating bar are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable, the material that it is characterized in that said restrictive coating are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE).
Above-mentioned described any twin core cable is characterized in that said first conductor is metal bar or the complex that formed by the stranded moulding of many one metal wires.
Above-mentioned described any twin core cable is characterized in that said second conductor is metal bar or the composite conductor that formed by the stranded moulding of many one metal wires.
Above-mentioned described any twin core cable is characterized in that said first isolating bar and the cross section of second isolating bar can be identical or for different.
Following table is the comparison of the typical outer diameter and the prior art of a kind of scheme of the present invention, from table, can find out, the present invention has advantage aspect the taking of space, and in addition, through accurate Calculation, cost can be practiced thrift greatly.
Embodiment 3
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Form the step of second isolating bar through plastic extruding machine;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
Embodiment 4
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Form the step of second isolating bar through plastic extruding machine;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; At first conductor, first isolating bar, second conductor, the second isolating bar outerwrap, one protective layer; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Through first isolating bar being cut the step that forms second isolating bar: first isolating bar is cut formation second isolating bar along symmetry axis perhaps the first isolating bar after-combustion is coiled on tool to another, cut off during to certain-length, remaining is second isolating bar;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
Embodiment 6
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of first isolating bar through plastic extruding machine;
Through first isolating bar being cut the step that forms second isolating bar: first isolating bar is cut formation second isolating bar along symmetry axis perhaps the first isolating bar after-combustion is coiled on tool to another, cut off during to certain-length, remaining is second isolating bar;
Mould through being installed on the sheath plastic extruding machine places central authorities with obturator; It is outer and be close to obturator that first conductor, first isolating bar, second conductor, second isolating bar are placed on obturator successively; At first conductor, first isolating bar, second conductor, the second isolating bar outerwrap, one protective layer; Outside first conductor, first isolating bar, second conductor, second isolating bar, extrude simultaneously the step of restrictive coating.
Embodiment 7
A kind of method of making twin core cable is characterized in that it comprises step:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of twin core cable: mould is installed on the sheath plastic extruding machine; Obturator is placed the filling body opening that is arranged in mould central authorities; First conductor, second conductor are placed on respectively among first conductor bores and second conductor bores of mould; First conductor bores and second conductor bores all are positioned at fills the body opening outside; First conductor bores and second conductor bores are disconnected mutually; First conductor bores, second conductor bores and filling body opening do not communicate, and form wall body of filling body opening and the wall body that forms first conductor bores and connect together, and the wall body that body opening is filled in formation connects together with the wall body that forms second conductor bores; And two gaps are arranged between the wall body of the wall body of first conductor bores and second conductor bores; Sheath is extruded on first conductor and second conductor when forming restrictive coating, and the gap has formed first isolating bar and second isolating bar, and two isolating bars are separated by first conductor and second conductor; First isolating bar, second isolating bar and restrictive coating are one.
In the product of the present invention; First conductor and the second conductor synnema are shaped to unique shape and are separated by first isolating bar and second isolating bar; Extrusion molding restrictive coating outside again, so the consumption of restrictive coating significantly reduces among the present invention, and the product external diameter is littler, cost is lower.The inventive method is simple, and operation is few, and has omitted slow-paced insulated wire cores manufacturing process, so speed of production is faster, production cost is lower.
The present invention has following beneficial effect: the consumption of product restrictive coating is few, and external diameter is thinner, and each item cost is lower, and production process is simpler, speed is faster.
The present invention is not limited to above-mentioned preferred forms, should be appreciated that design of the present invention can be by other various forms enforcement utilizations, and they drop in protection scope of the present invention equally.
Claims (2)
1. method of making twin core cable, said twin core cable includes first conductor (12), second conductor (22), restrictive coating (5); It is characterized in that also comprising one is positioned at central authorities and is columniform obturator (1), first isolating bar (61), second isolating bar (62); First conductor, second conductor, first isolating bar, second isolating bar all are close to obturator; First isolating bar, second isolating bar are kept apart first conductor and second conductor, and first isolating bar, second conductor, second isolating bar, first conductor link to each other successively; First isolating bar, second isolating bar and restrictive coating are formed in one; First isolating bar, second isolating bar protrude to the obturator direction from the inwall of restrictive coating; Restrictive coating envelopes first conductor and second conductor; On arbitrary cross section, the curvature on the surface that first isolating bar, second isolating bar, first conductor, second conductor paste with the outer epiphase of obturator separately equates; It is characterized in that it comprises following steps:
Getting two metal bars forms first conductor, the moulding of other many one metal wires synnema is formed the step of second conductor again as the step of first conductor and second conductor or with the moulding of many one metal wires synnema;
Form the step of obturator through plastic extruding machine;
Form the step of twin core cable: mould is installed on the sheath plastic extruding machine; Obturator is placed the filling body opening that is arranged in mould central authorities; First conductor, second conductor are placed on respectively among first conductor bores and second conductor bores of mould; First conductor bores and second conductor bores all are positioned at fills the body opening outside; First conductor bores and second conductor bores are disconnected mutually; First conductor bores, second conductor bores and filling body opening do not communicate, and form wall body of filling body opening and the wall body that forms first conductor bores and connect together, and the wall body that body opening is filled in formation connects together with the wall body that forms second conductor bores; And two gaps are arranged between the wall body of the wall body of first conductor bores and second conductor bores; Sheath is extruded on first conductor and second conductor when forming restrictive coating, and the gap has formed first isolating bar and second isolating bar, and two isolating bars are separated by first conductor and second conductor; First isolating bar, second isolating bar and restrictive coating are one.
2. the method for making twin core cable according to claim 1, the material that it is characterized in that said obturator are flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gather low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE); The material of said first isolating bar is flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gathers low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE); The material of said second isolating bar is flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gathers low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE); The material of said restrictive coating is flame-proof polyethylene or low-smoke halogen-free polyolefin or flame-proof PVC or polypropylene or gathers low density polyethylene (LDPE) or LLDPE or medium density polyethylene or high density polyethylene (HDPE); Said first conductor is metal bar or the complex that formed by the stranded moulding of many one metal wires; Said second conductor is metal bar or the composite conductor that formed by the stranded moulding of many one metal wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341557.2A CN102842386B (en) | 2011-08-08 | 2011-08-08 | Dual-core cable and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341557.2A CN102842386B (en) | 2011-08-08 | 2011-08-08 | Dual-core cable and manufacturing method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110226793 Division CN102280173B (en) | 2011-08-08 | 2011-08-08 | Two-core cable and manufacturing method thereof |
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| CN102842386A true CN102842386A (en) | 2012-12-26 |
| CN102842386B CN102842386B (en) | 2014-10-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023630A (en) * | 2013-03-16 | 2015-11-04 | 方秀琴 | Cable with simple structure and optical cable with simple structure |
| CN106321996A (en) * | 2016-11-09 | 2017-01-11 | 蒋菊生 | Anti-freezing, low carbon and environmentally friendly composite power water supply pipeline |
| CN106340358A (en) * | 2016-11-09 | 2017-01-18 | 蒋菊生 | Manufacture method of power composite water supply pipeline |
| CN106356118A (en) * | 2016-11-09 | 2017-01-25 | 凌卫康 | Water supply pipeline for three-in-one network |
| CN106653223A (en) * | 2016-11-09 | 2017-05-10 | 方秀琴 | Method of manufacturing cable TV and power-composite water supply pipeline |
| CN108131501A (en) * | 2016-11-09 | 2018-06-08 | 凌卫康 | A kind of manufacturing method of more net unification water supply lines |
| CN108253198A (en) * | 2016-11-09 | 2018-07-06 | 凌卫康 | A kind of more net unification water supply lines |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023630A (en) * | 2013-03-16 | 2015-11-04 | 方秀琴 | Cable with simple structure and optical cable with simple structure |
| CN106321996A (en) * | 2016-11-09 | 2017-01-11 | 蒋菊生 | Anti-freezing, low carbon and environmentally friendly composite power water supply pipeline |
| CN106340358A (en) * | 2016-11-09 | 2017-01-18 | 蒋菊生 | Manufacture method of power composite water supply pipeline |
| CN106356118A (en) * | 2016-11-09 | 2017-01-25 | 凌卫康 | Water supply pipeline for three-in-one network |
| CN106653223A (en) * | 2016-11-09 | 2017-05-10 | 方秀琴 | Method of manufacturing cable TV and power-composite water supply pipeline |
| CN108131501A (en) * | 2016-11-09 | 2018-06-08 | 凌卫康 | A kind of manufacturing method of more net unification water supply lines |
| CN108253198A (en) * | 2016-11-09 | 2018-07-06 | 凌卫康 | A kind of more net unification water supply lines |
| CN108281239A (en) * | 2016-11-09 | 2018-07-13 | 方秀琴 | A kind of manufacturing method of cable television and the compound water supply line of electric power |
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