CN104599774B - Cable and manufacturing method thereof - Google Patents
Cable and manufacturing method thereof Download PDFInfo
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- CN104599774B CN104599774B CN201510049831.2A CN201510049831A CN104599774B CN 104599774 B CN104599774 B CN 104599774B CN 201510049831 A CN201510049831 A CN 201510049831A CN 104599774 B CN104599774 B CN 104599774B
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- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 27
- 239000004698 Polyethylene Substances 0.000 claims abstract description 26
- 229920000573 polyethylene Polymers 0.000 claims abstract description 26
- 239000011324 bead Substances 0.000 claims description 85
- 239000011248 coating agent Substances 0.000 claims description 73
- 238000000576 coating method Methods 0.000 claims description 73
- 239000004020 conductor Substances 0.000 claims description 56
- 239000000463 material Substances 0.000 claims description 38
- 238000001125 extrusion Methods 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 abstract description 19
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- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 4
- 238000012423 maintenance Methods 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 9
- 229910052736 halogen Inorganic materials 0.000 description 9
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- Insulated Conductors (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
The invention belongs to the technical field of power and cables and particularly relates to a cable. The cable comprises a protecting bush layer and a plurality of conductive units, and is characterized in that any two conductive units are separated by a separation bar; on any one cross section of the cable, the shape formed by connecting all the separation bars is K-shaped or M-shaped or N-shaped or W-shaped; any separation bar is in a linear shape; the separation bars and the protecting bush layer are formed together; the protecting bush layer is made of low-density polyethylene or middle-density polyethylene or high-density polyethylene or inflaming retarding polyethylene or low-smoke halogen-free polyethylene or polyvinyl chloride or polytetrafluoroethylene or nylon or a special formula. The invention further discloses a manufacturing method of the cable. The cable has the main beneficial effects of simple structure, easiness of manufacturing, easiness of maintenance and laying, higher current carrying capacity, and better performance of the protecting bush layer, and is more easily machined.
Description
The application is entitled: a kind of new structure cable and preparation method thereof, filing date: on 08 27th, 2014, Application No.: the divisional application of the application for a patent for invention of 201410427639.8.
Technical field
The invention belongs to electric power and technical field of cables, especially relate to a kind of cable and preparation method thereof.
Background technology
Electric wire is as key pillars of the national economy industry, and its ratio shared in national economy increases day by day.As the industry of a comparative maturity, the joint Zhi Jiangben of electric wire is the most increasingly paid attention to by industry, and the construction of cable is got in polarization, and several functions is integrated by the highly integrated complication of one-level, and saving is laid, operation expense；Another level is for simplifying the structure, in the case of meeting industry standard, national standard, company standard, structure as far as possible simple, cost is the lowest, this mode meets what the requirement of low carbocyclic ring.To this end, the domestic structure for cable has carried out substantial amounts of research, such as: publication No. is CN103123824A, patent name is: a kind of cable with simple structure and manufacture method thereof, it is to be made up of many conductors, the restrictive coating that enveloped by conductor；It is characterized in that, between two conductors of arbitrary neighborhood, there is jacket layer material；On the cross section of cable, within the edge of any one conductor is all located at the border of restrictive coating；Described many conductors are distributed along restrictive coating, and are discontiguous between any two conductors；It is by offering cylindrical or the hole of fan cylinder shape in restrictive coating, conductor is inserted hole is formed cable, this mode has reached the easy purpose of structure really, but, for restrictive coating in irregular shape between adjacent conductor, this mode does not reasonably utilize space, and motility mode can not meet requirement.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to disclose a kind of cable and preparation method thereof, they realize by the following technical solutions.
A kind of cable, it includes restrictive coating 1, many conductive units 12；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as A font or H font or K font or M font or N font or V-shaped or W font or X font or Y-shaped, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon or by weight, the material of described restrictive coating is made up of following raw material: polyethylene: 50～70 parts, ethylene vinyl acetate copolymer: 6～10 parts, magnesium hydroxide: 10～16 parts, model is the coupling agent of TMC-38S: 1～3 part, antioxidant 1010: 1～3 part, titanium dioxide or carbon black: 2.5～5.5 parts, paraffin: 3～5 parts, dibutyl phthalate: 5～10 parts, polyvinyl alcohol: 5～10 parts, tributyl phosphate: 3～5 parts, silicone oil: 3～5 parts.
A kind of cable described above, it is characterised in that described conductive unit is the conductor bundle closed of many conductor skein silks or is made up of stranded conductor bundle 121, the insulating barrier 122 that is coated on outside stranded conductor bundle.
A kind of cable described above, it is characterised in that when described parting bead be formed by connecting when being shaped as M font or N font or V-shaped or W font or X font, the two ends of every parting bead are all connected on restrictive coating.
A kind of cable described above, it is characterized in that when described parting bead be formed by connecting when being shaped as H font or K font or M font or N font or V-shaped or W font or X font or Y-shaped, on arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is two sectors, an arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is two sectors, an arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as V-shaped, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is two sectors, two arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is two sectors, two arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as N font, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is three sectors, an arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is three sectors, an arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as K font, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is three sectors, two arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is three sectors, two arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as W font or M font, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
In the present invention, what parting bead was formed by connecting is shaped as special alphabetical shape, it is highly convenient for producing, and the shape of conductive unit is no longer single sector, therefore the area of parting bead is less, accordingly, it is capable to make the space of cable be utilised more efficiently, during the most same cross-sectional area, the higher magnitude of current can be carried.
In the present invention, except parting bead be formed by connecting be shaped as A font in addition to, in other embodiment, identification sign can be made on restrictive coating, such as groove, raised line, lettering etc., all strip off cables can be reached not, and reach to identify and take out the purpose of conductive unit, therefore, it is easier to construction.
Therefore, new structure cable of the present invention has a following main beneficial effect: simple in construction, easily to make, be easily maintained and apply work, current-carrying capacity higher.
Accompanying drawing explanation
Fig. 1 is the perspective view that after embodiment 1 of the present invention intercepts a section, solution is cut open.
Fig. 2 is the cross-sectional structure schematic diagram after Fig. 1 amplifies.
Fig. 3 is the perspective view that after embodiment 2 of the present invention intercepts a section, solution is cut open.
Fig. 4 is the perspective view that after embodiment 3 of the present invention intercepts a section, solution is cut open.
Fig. 5 is the cross-sectional structure schematic diagram after Fig. 4 amplifies.
Fig. 6 is the perspective view that after embodiment 4 of the present invention intercepts a section, solution is cut open.
Fig. 7 is the perspective view that after embodiment 5 of the present invention intercepts a section, solution is cut open.
Fig. 8 is the cross-sectional structure schematic diagram after Fig. 7 amplifies.
Fig. 9 is the perspective view that after embodiment 6 of the present invention intercepts a section, solution is cut open.
Figure 10 is the cross-sectional structure schematic diagram after embodiment 7 of the present invention removes conductive unit.
Figure 11 is the cross-sectional structure schematic diagram after embodiment 8 of the present invention removes conductive unit.
Figure 12 is the cross-sectional structure schematic diagram after embodiment 9 of the present invention removes conductive unit.
Figure 13 is the cross-sectional structure schematic diagram after embodiment 10 of the present invention removes conductive unit.
Figure 14 is the cross-sectional structure schematic diagram after embodiment 11 of the present invention removes conductive unit.
Detailed description of the invention
Embodiment
1
Asking for an interview Fig. 1 and Fig. 2, a kind of cable, it includes 1,3 conductive units 12 of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as V-shaped, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, there are two arch, a sector in the cross section of conductive unit.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is two sectors, an arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is two sectors, an arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as V-shaped, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
Embodiment
2
Asking for an interview Fig. 3, and with reference to Fig. 1 and Fig. 2, a kind of cable, substantially with embodiment 1, difference is: described conductive unit is the conductor bundle closed of many conductor skein silks or is made up of stranded conductor bundle 121, the insulating barrier 122 that is coated on outside stranded conductor bundle.
Embodiment
3
Asking for an interview Fig. 4 and Fig. 5, a kind of cable, it includes 1,3 conductive units 12 of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as Y-shaped, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, the cross section of conductive unit is three sectors.
Embodiment
4
Asking for an interview Fig. 6, and with reference to Fig. 4 and Fig. 5, a kind of cable, substantially with embodiment 3, difference is: described conductive unit is the conductor bundle closed of many conductor skein silks or is made up of stranded conductor bundle 121, the insulating barrier 122 that is coated on outside stranded conductor bundle.
Embodiment
5
Asking for an interview Fig. 7 and Fig. 8, a kind of cable, it includes 1,4 conductive units 12 of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as H font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, having two in the cross section of conductive unit is two arch, two similar right-angled trapezium, but the hypotenuse of vertical ladder shape is circular shape, and circular arc is near restrictive coating.
Embodiment
6
Asking for an interview Fig. 9, and with reference to Fig. 7 and Fig. 8, a kind of cable, substantially with embodiment 5, difference is: described conductive unit is the conductor bundle closed of many conductor skein silks or is made up of stranded conductor bundle 121, the insulating barrier 122 that is coated on outside stranded conductor bundle.
Embodiment
7
Asking for an interview Figure 10, a kind of cable, it includes 1,4 conductive units of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as A font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon.
Embodiment
8
Asking for an interview Figure 11, a kind of cable, it includes 1,4 conductive units of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as N font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, there are two arch, two sectors in the cross section of conductive unit.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is two sectors, two arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is two sectors, two arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as N font, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
Embodiment
9
Asking for an interview Figure 12, a kind of cable, it includes 1,4 conductive units of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as X font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, the cross section of conductive unit is four sectors.
Embodiment
10
Asking for an interview Figure 13, a kind of cable, it includes 1,4 conductive units of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as K font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, there are an arch, three sectors in the cross section of conductive unit.
Embodiment
11
Asking for an interview Figure 14, a kind of cable, it includes 1,3 conductive units of restrictive coating；It is characterized in that any two conductive units are all separated by parting bead 11；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as M font or W font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；The material of restrictive coating is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or polrvinyl chloride or politef or nylon；Wherein, there are two arch, three sectors in the cross section of conductive unit.
The manufacture method of a kind of cable, it is characterised in that comprise the step that next coming in order carry out and gather:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is three sectors, an arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is three sectors, an arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as K font, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
A kind of cable described in above-mentioned embodiment, it is characterised in that when described parting bead be formed by connecting when being shaped as M font or N font or V-shaped or W font or X font, the two ends of every parting bead are all connected on restrictive coating.
A kind of cable described in above-mentioned embodiment, it is characterized in that when described parting bead be formed by connecting when being shaped as H font or K font or M font or N font or V-shaped or W font or X font or Y-shaped, on arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating.
A kind of cable described in above-mentioned embodiment, it is characterized in that by weight, described restrictive coating can also is that and is made up of following raw material: polyethylene: 50～70 parts, ethylene vinyl acetate copolymer: 6～10 parts, magnesium hydroxide: 10～16 parts, model be the coupling agent of TMC-38S: 1～3 part, antioxidant 1010: 1～3 part, titanium dioxide or carbon black: 2.5～5.5 parts, paraffin: 3～5 parts, dibutyl phthalate: 5～10 parts, polyvinyl alcohol: 5～10 parts, tributyl phosphate: 3～5 parts, silicone oil: 3～5 parts.
Optimum formula proportion is: by weight, described restrictive coating is to be made up of following raw material: polyethylene: 60 parts, ethylene vinyl acetate copolymer: 8 parts, magnesium hydroxide: 13 parts, model be the coupling agent of TMC-38S: 2 parts, antioxidant 1010: 2 parts, titanium dioxide or carbon black: 4 parts, paraffin: 4 parts, dibutyl phthalate: 7 parts, polyvinyl alcohol: 7 parts, tributyl phosphate: 4 parts, silicone oil: 4 parts.
Through test, the oxygen index (OI) of the protective cover material of above-mentioned big numerical range reaches and has exceeded 34, Φ 45 sheath extruding machine, Φ 60 sheath extruding machine, Φ 90 sheath extruding machine, Φ 125 sheath extruding machine, Φ 150 sheath extruding machine are processed the process velocity of cable of a diameter of 35mm and have been respectively reached 40m/min, 50m/min, 80m/min, 120m/min, 150m/min, and the restrictive coating smooth surface extruded, pore-free, impulse-free robustness；The tensile strength minima of restrictive coating reaches 18MPa, elongation at break minima be 380%, 100 DEG C of maximum collapse values of 96 hours be 3.5%, therefore, reached more satisfactory effect.
In the present invention, what parting bead was formed by connecting is shaped as special alphabetical shape, it is highly convenient for producing, and the shape of conductive unit is no longer single sector, therefore the area of parting bead is less, accordingly, it is capable to make the space of cable be utilised more efficiently, during the most same cross-sectional area, the higher magnitude of current can be carried.
In the present invention, what parting bead was formed by connecting is shaped as special letter shapes, belong to an inventive concept, and except parting bead be formed by connecting be shaped as A font in addition to, in other embodiment, identification sign can be made on restrictive coating, such as groove, raised line, lettering etc., all strip off cables can be reached not, and reach to identify and take out the purpose of conductive unit, therefore, it is easier to construction.
Therefore, new structure cable of the present invention has a following main beneficial effect: simple in construction, easily to make, be easily maintained and apply work, current-carrying capacity higher.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that the design of the present invention can be implemented to use by other various forms, and they also fall within protection scope of the present invention.
Claims (2)
1. a cable, it includes restrictive coating, many conductive units；It is characterized in that any two conductive units are all separated by parting bead；On arbitrary cross section of cable, what all parting beads were formed by connecting is shaped as K font or M font or N font or W font, and arbitrary parting bead is all line segment shape；Parting bead is formed together with restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating；By weight, described restrictive coating is to be made up of following raw material: polyethylene: 60 parts, ethylene vinyl acetate copolymer: 8 parts, magnesium hydroxide: 13 parts, model be the coupling agent of TMC-38S: 2 parts, antioxidant 1010: 2 parts, titanium dioxide or carbon black: 4 parts, paraffin: 4 parts, dibutyl phthalate: 7 parts, polyvinyl alcohol: 7 parts, tributyl phosphate: 4 parts, silicone oil: 4 parts；The oxygen index (OI) of described protective cover material is not less than 34, and the process velocity maximum of cable processing a diameter of 35mm with Φ 45 sheath extruding machine, Φ 60 sheath extruding machine, Φ 90 sheath extruding machine, Φ 125 sheath extruding machine, Φ 150 sheath extruding machine is respectively 40m/min, 50m/min, 80m/min, 120m/min, 150m/min；The tensile strength minima of restrictive coating reaches 18MPa, elongation at break minima be 380%, 100 DEG C of maximum collapse values of 96 hours be 3.5%.
2. the method making cable, it is characterised in that comprise the step that next coming in order are carried out:
The first step: make the step of conductive unit: taking many conductor skein silks and close formation conductive unit, the cross section of conductive unit is three sectors, two arch；Or taking many conductor skein silks conjunctions and form stranded conductor bundle, form conductive unit at the outer extrusion molding coated insulation layer of stranded conductor bundle, the cross section of conductive unit is three sectors, two arch；
Second step: be extruded into the step of cable: sheath material is inserted electric wire extruding machine and reaches extrusion requirement, the conductive unit of gained in the first step is passed in the mould of extrusion head, opening extruding machine makes sheath material enter formation parting bead and restrictive coating in mould, traction conductive unit, sheath material is towed in bosh and is coated on outside conductive unit, forms cable；Wherein, on arbitrary cross section of described cable, what all parting beads were formed by connecting is shaped as W font, and arbitrary parting bead is all line segment shape；The two ends of every parting bead are all connected on restrictive coating；On arbitrary cross section of cable, the outward flange of every conductive unit all has a circular shape, and the circular arc outward flange of all conductive units is on the circumference centered by the center of circle of restrictive coating；By weight, the material of described sheath is made up of following raw material: polyethylene: 50～70 parts, ethylene vinyl acetate copolymer: 6～10 parts, magnesium hydroxide: 10～16 parts, model be the coupling agent of TMC-38S: 1～3 part, antioxidant 1010: 1～3 part, titanium dioxide or carbon black: 2.5～5.5 parts, paraffin: 3～5 parts, dibutyl phthalate: 5～10 parts, polyvinyl alcohol: 5～10 parts, tributyl phosphate: 3～5 parts, silicone oil: 3～5 parts.
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| CN106653163B (en) * | 2016-11-22 | 2018-08-24 | 吉林省中赢高科技有限公司 | A kind of abnormity cable and preparation method thereof |
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| CN103123824A (en) * | 2013-03-16 | 2013-05-29 | 蒋菊生 | Simple-structure electric cable and manufacture method of electric cable |
| CN103709497A (en) * | 2012-09-29 | 2014-04-09 | 青岛欣展塑胶有限公司 | Color master batch for plastic cement and preparation method thereof |
| CN104599775A (en) * | 2014-08-27 | 2015-05-06 | 沈群华 | Cable with novel structure and manufacturing method thereof |
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| CN103709497A (en) * | 2012-09-29 | 2014-04-09 | 青岛欣展塑胶有限公司 | Color master batch for plastic cement and preparation method thereof |
| CN103123824A (en) * | 2013-03-16 | 2013-05-29 | 蒋菊生 | Simple-structure electric cable and manufacture method of electric cable |
| CN103295675A (en) * | 2013-03-16 | 2013-09-11 | 方秀琴 | Cable with simple structure and manufacture method thereof |
| CN104599775A (en) * | 2014-08-27 | 2015-05-06 | 沈群华 | Cable with novel structure and manufacturing method thereof |
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Effective date of registration: 20161013 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: KAIFENG POWER SUPPLY COMPANY, STATE GRID HENAN ELECTRIC POWER CO., LTD. Applicant after: KAIFENG XIANGFU POWER SUPPLY COMPANY, STATE GRID HENAN ELECTRIC POWER COMPANY Address before: Suzhou City, Jiangsu Province, 215554 Changshou City Shang Hu Zhen Da he Cun Shen Tang Wan Tao (28) No. 79 Applicant before: Shen Qunhua |
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