CN105609192B - Cable capable of displaying whether being in working condition and fabrication method thereof - Google Patents

Cable capable of displaying whether being in working condition and fabrication method thereof Download PDF

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Publication number
CN105609192B
CN105609192B CN201610095633.4A CN201610095633A CN105609192B CN 105609192 B CN105609192 B CN 105609192B CN 201610095633 A CN201610095633 A CN 201610095633A CN 105609192 B CN105609192 B CN 105609192B
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China
Prior art keywords
cable
restrictive coating
parts
parting bead
density polyethylene
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Expired - Fee Related
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CN201610095633.4A
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Chinese (zh)
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CN105609192A (en
Inventor
湛晨
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Dongguan Huaxun Industrial Co. Ltd.
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Dongguan Huaxun Industrial Co Ltd
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Priority to CN201610095633.4A priority Critical patent/CN105609192B/en
Publication of CN105609192A publication Critical patent/CN105609192A/en
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0807—Twin conductor or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/064—VLDPE
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Insulated Conductors (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention belongs to the technical field of power and a cable, in particular relates to a cable capable of displaying whether being in a working condition or not. The cable comprises two insulation wires, wherein the two insulation wires are arranged in parallel, a sheath layer wraps outside the insulation wires, the cable is characterized in that the sheath layer is divided into a left closed space and a right closed space by a partition strip, the two insulation wires are respectively arranged in the two closed spaces, the partition strip and the sheath layer are of an integrated structure, a plurality of left side holes are formed on the left side of the partition strip, a plurality of right side holes are formed on the right side of the partition strip, each insulation wire comprise an electric conductor and an insulation layer wrapping outside the electric conductor in an extrusion way, the sheath layer is made of polyethylene or polypropylene or polytetrafluoroethylene or polyvinyl chloride, and the insulation layer is formed by a special formula. The invention also discloses a fabrication method of the cable. The cable has the advantages that the working condition of the cable can be clearly displayed, extra auxiliary load display is not needed, instruments are not needed, and more power is saved.

Description

It is a kind of to can be used to display whether in running order cable and its manufacture method
The application is entitled：It is a kind of to display whether that in running order cable, the applying date are：08 month 2014 27 Day, the divisional application of the patent of invention of Application No. 201410426837.2.
Technical field
The invention belongs to electric power and technical field of cables, can be used to display whether more particularly, to one kind in running order Cable and its manufacture method.
Background technology
In prior art, it is to pass through connected equipment to realize that whether cable is in running order, such as in cable Termination bulb mounting, electrical equipment, load etc. to be realizing.And for attendant, it usually needs understand whether cable is in Working condition, when equipment is not connected, is realized generally using instrument and meter；Therefore, it is very inconvenient.
The content of the invention
In order to solve the above problems, the purpose of the present invention is that announcement is a kind of be can be used to display whether in running order electricity Cable and its manufacture method, they employ the following technical solutions to realize.
It is in the embodiment 1 of the present invention, a kind of to can be used to display whether in running order cable, include electric conductor 2nd, extrusion molding is coated on conductive external insulating barrier 1；It is characterized in that by weight, raw material of the insulating barrier by following content Constitute：Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 Part, commercially available heat discoloration powder：3~5 parts, guanidine carbonate：1~2 part, the cable jacket material antioxidation of commercially available model 1010 Agent：0.5~1 part, industrial 1# or 2# or 3# white oils：3~5 parts.
It is in the embodiment 2 of the present invention, a kind of to can be used to display whether in running order cable, include two and put down The insulated conductor that row is placed, insulated conductor are coated with restrictive coating 3；It is characterized in that the restrictive coating is separated into a left side by parting bead 4 Right two closing spaces, two insulated conductors are located in two closing spaces respectively, and parting bead and restrictive coating are integral structures, every The left side of bar has multiple left holes, the right side of parting bead has multiple right ports；Every insulated conductor is by electric conductor 2, extrusion molding bag Overlay on conductive external insulating barrier 1 to constitute；The material of the restrictive coating is polyethylene or polypropylene or politef or polychlorostyrene Ethylene；Or by weight, the insulating barrier is made up of the raw material of following content：Low Density Polyethylene or medium density polyethylene Or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, guanidine carbonate： 1~2 part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# white oils：3 ~5 parts.
It is in the embodiment 3 of the present invention, a kind of to can be used to display whether in running order cable, include three and put down The insulated conductor that row is placed, insulated conductor are coated with restrictive coating 3；It is characterized in that the restrictive coating is separated by three parting beads 4 Into three closing spaces, three insulated conductors are located in three closing spaces respectively, it is that parting bead is formed separately with restrictive coating but It is the structure of the formula of being connected as a single entity, the left side of each parting bead has multiple left holes, the right side of each parting bead has multiple right ports； One end of each parting bead is connected with restrictive coating, and the other end of each parting bead is connected with each other；Every insulated conductor by electric conductor 2, squeeze Modeling is coated on conductive external insulating barrier 1 and constitutes；The material of the restrictive coating be polyethylene or polypropylene or politef or Polrvinyl chloride；Or by weight, the insulating barrier is made up of the raw material of following content：Low Density Polyethylene or Midst density are poly- Ethylene or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, carbon Sour guanidine：1~2 part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# White oil：3~5 parts.
It is in the embodiment 4 of the present invention, a kind of to can be used to display whether in running order cable, include three and put down The insulated conductor that row is placed, insulated conductor are coated with restrictive coating 3；It is characterized in that the restrictive coating is separated by three parting beads 4 Into three closing spaces, three insulated conductors are located in three closing spaces respectively, parting bead be integrally formed with restrictive coating one Body formula structure, the left side of each parting bead has multiple left holes, the right side of each parting bead has multiple right ports；Each parting bead One end is connected with restrictive coating, and the other end of each parting bead is connected with each other；Every insulated conductor is coated on by electric conductor 2, extrusion molding and is led The external insulating barrier 1 of electricity is constituted；The material of the restrictive coating is polyethylene or polypropylene or politef or polrvinyl chloride；Or By weight, the insulating barrier is made up of person the raw material of following content：Low Density Polyethylene or medium density polyethylene or highly dense Degree polyethylene or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, guanidine carbonate：1~2 Part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# white oils：3~5 Part.
Certainly, it is described above it is a kind of can be used to display whether in running order cable, can also be and include which Its many insulated conductor being placed in parallel, with other multiple parting beads, the space in restrictive coating is divided into multiple envelopes by all parting beads Space is closed, many insulated conductors are located in multiple closing spaces respectively.
In the present invention, due to the special composition of insulating layer material, can give off heat when cable is in running order, cause absolutely Edge layer changes colour, and has reached the effect of identification, the discoloration of insulating barrier can be observed from left hole and right ports, and The restrictive coating of strip off cable is not needed；Certainly, it also avoid the function of remained capacity, and touch cable with handss causing to send out Raw electric shock phenomenon.
Therefore, the present invention has following main beneficial effect：Cable work state can clearly display, it is extra not need Load auxiliary shows, does not need instrument and meter, more electric power saving.
Description of the drawings
Fig. 1 is the dimensional structure diagram after a section of embodiment of the present invention 1 is dissected.
Fig. 2 is the dimensional structure diagram after a section of embodiment of the present invention 2 is dissected.
Fig. 3 is a cross-sectional structure schematic diagram of this Fig. 2.
Fig. 4 is the dimensional structure diagram after Fig. 2 truncated parts.
Fig. 5 is the dimensional structure diagram after a section of embodiment of the present invention 3 is dissected.
Fig. 6 is the dimensional structure diagram after Fig. 5 truncated parts.
Fig. 7 is a cross-sectional structure schematic diagram of this Fig. 5.
Fig. 8 is a cross-sectional structure schematic diagram of embodiment of the present invention 4.
Specific embodiment
Embodiment 1
Fig. 1 is asked for an interview, it is a kind of to can be used to display whether in running order cable, include electric conductor 2, extrusion molding and be coated on Conductive external insulating barrier 1；It is characterized in that by weight, the insulating barrier is made up of the raw material of following content：Low-density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available temperature-sensitive Color-change powder：3~5 parts, guanidine carbonate：1~2 part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, Industrial 1# or 2# or 3# white oils：3~5 parts.
Embodiment 2
Fig. 2 to Fig. 4 is asked for an interview, it is a kind of to can be used to display whether in running order cable, include two and be placed in parallel Insulated conductor, insulated conductor is coated with restrictive coating 3；It is characterized in that the restrictive coating is separated into left and right two by parting bead 4 Closing space, two insulated conductors are located in two closing spaces respectively, and parting bead and restrictive coating are integral structures, a left side for parting bead Side has multiple left holes, the right side of parting bead has multiple right ports；Every insulated conductor is coated on by electric conductor 2, extrusion molding and is led The external insulating barrier 1 of electricity is constituted；The material of the restrictive coating is polyethylene or polypropylene or politef or polrvinyl chloride；Or By weight, the insulating barrier is made up of person the raw material of following content：Low Density Polyethylene or medium density polyethylene or highly dense Degree polyethylene or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, guanidine carbonate：1~2 Part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# white oils：3~5 Part.
It is described above it is a kind of can be used to display whether in running order cable, the left side of parting bead has multiple left sides Hole, the right side of parting bead have multiple right ports；The lower surface left hole of upper surface left hole 52 and bottom of the left hole for top 54；The lower surface right ports 53 of upper surface right ports 51 and bottom of the right ports for top.
It is described above it is a kind of can be used to display whether in running order cable, upper surface left hole, upper surface are right Side opening is all the upper surface of insertion restrictive coating.
It is described above it is a kind of can be used to display whether in running order cable, lower surface left hole, lower surface are right Side opening is all the lower surface of insertion restrictive coating.
It is described above it is a kind of can be used to display whether in running order cable, upper surface left hole, upper surface are right Side opening is all near parting bead, i.e., on the restrictive coating near parting bead.
It is described above it is a kind of can be used to display whether in running order cable, lower surface left hole, lower surface are right Side opening is all near parting bead, i.e., on the restrictive coating near parting bead.
It is described above it is a kind of can be used to display whether in running order cable, the center of upper surface left hole can be with On straight line；The center of lower surface left hole is may be located on straight line；The center of upper surface right ports can be with position On straight line；The center of lower surface right ports is may be located on straight line.
It is described above it is a kind of can be used to display whether in running order cable, upper surface left hole can be interrupted Or it is continuous, lower surface left hole can also be interrupted or continuous, and upper surface right ports can also be interrupted or even Continuous, lower surface right ports can also be interrupted or continuous.
It is described above a kind of to can be used to display whether in running order cable, it is characterised in that on the left of upper surface Occur when can be different both hole, both upper surface right ports are another from lower surface left hole, lower surface right ports, it is also possible to while going out It is existing；When occurring, no matter laying for cable can be all up showing, judged whether cable is located with upper surface or lower surface simultaneously In the purpose of working condition.
In the present embodiment, restrictive coating and parting bead can with the extrusion moulding together with by the way of realizing；Can also be using viscous The mode of knot sealing is realizing.
The a kind of of this embodiment can be used to display whether in running order cable that its manufacture is included and carried out successively Following steps：
The step of first step, manufacture insulated conductor：First is formed by extruding machine extrusion molding coated insulation layer in vitro conductive Insulated electric conductor, around being placed on the first Revolving disc tool, thickness of insulating layer is 0.3~1.6mm；Then another electric conductor is taken again, Another conduction forms the second insulated electric conductor by extruding machine extrusion molding coated insulation layer in vitro, around being placed on the second Revolving disc tool, Thickness of insulating layer is 0.3~1.6mm；The insulating barrier by weight, is made up of the raw material of following content：Low density polyethylene Alkene or medium density polyethylene or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration Powder：3~5 parts, guanidine carbonate：1~2 part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industry With 1# or 2# or 3# white oils：3~5 parts；
The step of second step, manufacture parting bead and restrictive coating：First insulated electric conductor and the second insulated electric conductor are passed through into extruding machine Extrusion die, form cable semi-finished product cooled and constantly traction；The extrusion die of extruding machine ensures that first and second is exhausted Edge conductor is placed in parallel, restrictive coating is coated on outside first and second insulated conductor, and restrictive coating is divided into the closing of left and right two by parting bead Space, two insulated conductors are located in two closing spaces respectively, and parting bead and restrictive coating are integrally-formed structures；
The step of 3rd step, manufacture left hole and right ports：Second step formed cable semi-finished product and be cooled and not During disconnected traction, left hole is formed using left side repeated stock of the percussion tool in parting bead, formed in the right side repeated stock of parting bead Right ports；Left hole and right ports are all through restrictive coating, and left hole and right ports are all interrupted；Complete to display whether The manufacture of in running order cable.
Embodiment 3
Fig. 5 to Fig. 7 is asked for an interview, it is a kind of to can be used to display whether in running order cable, include three and be placed in parallel Insulated conductor, insulated conductor is coated with restrictive coating 3；It is characterized in that the restrictive coating is separated into three by three parting beads 4 Closing space, three insulated conductors are located in three closing spaces respectively, and parting bead is still linked as with what restrictive coating was formed separately The structure of integral type, the left side of each parting bead has multiple left holes, the right side of each parting bead has multiple right ports；Each every One end of bar is connected with restrictive coating, and the other end of each parting bead is connected with each other；Every insulated conductor is coated by electric conductor 2, extrusion molding Constitute in conductive external insulating barrier 1；The material of the restrictive coating is polyethylene or polypropylene or politef or polychlorostyrene second Alkene；Or by weight, the insulating barrier is made up of the raw material of following content：Low Density Polyethylene or medium density polyethylene or High density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, guanidine carbonate：1 ~2 parts, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# white oils：3 ~5 parts.
The hole of parting bead left and right side be respectively upper surface left hole 52, upper surface right ports 51, lower surface left hole 54, under Surface right ports 53, middle surface right ports 55, middle surface left hole（Do not illustrate on the diagram, but affiliated personnel are retouched according to above State and can deduce completely）.
In the present embodiment, restrictive coating and parting bead can be being realized by the way of being bonded and sealed.
Embodiment 4
Fig. 8 is asked for an interview, and refers to Fig. 5 to Fig. 7, it is a kind of to can be used to display whether in running order cable, include three The insulated conductor that root is placed in parallel, insulated conductor are coated with restrictive coating 3；It is characterized in that the restrictive coating is by three parting beads 4 Three closing spaces are separated into, three insulated conductors are located in three closing spaces respectively, and parting bead is integrally formed with restrictive coating Integral structure, the left side of each parting bead has multiple left holes, the right side of each parting bead has multiple right ports；Each every One end of bar is connected with restrictive coating, and the other end of each parting bead is connected with each other；Every insulated conductor is coated by electric conductor 2, extrusion molding Constitute in conductive external insulating barrier 1；The material of the restrictive coating is polyethylene or polypropylene or politef or polychlorostyrene second Alkene；Or by weight, the insulating barrier is made up of the raw material of following content：Low Density Polyethylene or medium density polyethylene or High density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, guanidine carbonate：1 ~2 parts, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# white oils：3 ~5 parts.
In the present embodiment, restrictive coating and parting bead can with the extrusion moulding together with by the way of realizing.
Certainly, it is described above it is a kind of can be used to display whether in running order cable, can also be and include which Its many insulated conductor being placed in parallel, with other multiple parting beads, the space in restrictive coating is divided into multiple envelopes by all parting beads Space is closed, many insulated conductors are located in multiple closing spaces respectively.
In the present invention, due to the special composition of insulating layer material, can give off heat when cable is in running order, cause absolutely Edge layer changes colour, and has reached the effect of identification, the discoloration of insulating barrier can be observed from left hole and right ports, and The restrictive coating of strip off cable is not needed；Certainly, it also avoid the function of remained capacity, and touch cable with handss causing to send out Raw electric shock phenomenon.
In the present invention, the heating of adjacent insulated conductor has been isolated in the presence of parting bead to a certain extent；Using suitable Material, can reach preferable effect of heat insulation.
In the present invention, left hole, the presence of right ports not only can be realized observing the function whether insulating barrier changes colour, and And, heat during cable work can be effectively dissipated, makes the flow conductivity of cable higher.
If the cable in the present invention does not work, temperature drastically will not be raised, or be higher than ambient temperature, and insulating barrier will not Discoloration, therefore, if insulating barrier is identical with primitive color, then it represents that cable is in off working state.
Parting bead in the present invention can be and restrictive coating identical material, or the material different with restrictive coating.
Electric conductor in the present invention can be single metal or alloy conductor, may also be by many one metal wires or many conjunctions Spun gold is stranded.
Further exist, the material of electric conductor described above can be copper or aluminum or aluminum alloy or magnesium alloy or almag Or copper cover aluminum.
A kind of in the present invention can be used to display whether in running order cable, raw material of the insulating barrier by following content Become display performance and extrusion performance with optimum temperature during composition：Low Density Polyethylene or medium density polyethylene or high-density polyethylene Alkene or polypropylene：65 parts, Tissuemat E：6 parts, commercially available heat discoloration powder：4 parts, guanidine carbonate：1.5 parts, commercially available model 1010 Cable jacket material antioxidant：0.8 part, industrial 1# or 2# or 3# white oils：4 parts.
Certainly, temperature when insulating barrier is made up of the raw material of following content with suboptimum becomes display performance and extrusion performance：It is low Density polyethylene or medium density polyethylene or high density polyethylene (HDPE) or polypropylene：80 parts, Tissuemat E：5 parts, commercially available heat discoloration Powder：3 parts, guanidine carbonate：1 part, the cable jacket material antioxidant of commercially available model 1010：0.6 part, industrial 1# or 2# or 3# white oils：3 parts.
Certainly, when insulating barrier is made up of the raw material of following content, the temperature with suboptimum becomes display performance and extrusion performance： Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or polypropylene：50 parts, Tissuemat E：8 parts, the change of commercially available temperature-sensitive Toner：5 parts, guanidine carbonate：2 parts, the cable jacket material antioxidant of commercially available model 1010：1 part, industrial 1# or 2# or 3# white oils：5 parts.
Applicant is checked for the insulating layer material used in the present invention, obtains data below：
These parameters have reached electric wire, optical fiber cable insulating barrier, the index request of protective cover material；The highest of extrusion processing Temperature is 225 DEG C.
The insulating layer material of the present invention starts with color change at >=60 DEG C；The commercially available heat discoloration that applicant uses Powder is bought from thousand complexion changed pigment company limited of Shenzhen.
Therefore, the present invention has following main beneficial effect：Cable work state can clearly display, it is extra not need Load auxiliary shows, does not need instrument and meter, more electric power saving.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that the design of the present invention can be by other a variety of shapes Formula is implemented to use, and they are also fallen within protection scope of the present invention.

Claims (1)

1. a kind of method that manufacture can be used to the cable for displaying whether in running order, it is characterised in that it includes and carries out successively Following steps：
The step of first step, manufacture insulated conductor：The first insulation is formed by extruding machine extrusion molding coated insulation layer in vitro conductive Conductor, around being placed on the first Revolving disc tool, thickness of insulating layer is 0.3~1.6mm；Then another electric conductor is taken again, another Root conduction forms the second insulated electric conductor by extruding machine extrusion molding coated insulation layer in vitro, around being placed on the second Revolving disc tool, insulate Thickness degree is 0.3~1.6mm；The insulating barrier by weight, is made up of the raw material of following content：Low Density Polyethylene or Medium density polyethylene or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3 ~5 parts, guanidine carbonate：1~2 part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# Or 2# or 3# white oils：3~5 parts；
The step of second step, manufacture parting bead and restrictive coating：First insulated electric conductor and the second insulated electric conductor are passed through into the machine of extruding machine Head mould has, and forms cable semi-finished product cooled and constantly traction；The extrusion die of extruding machine ensures that first and second insulation is led Body is placed in parallel, restrictive coating is coated on outside first and second insulated conductor, and restrictive coating is divided into two closing spaces in left and right by parting bead, Two insulated conductors are located in two closing spaces respectively, and parting bead and restrictive coating are integrally-formed structures；
The step of 3rd step, manufacture left hole and right ports：The cable semi-finished product formed in second step are cooled and constantly draw When, left hole is formed using left side repeated stock of the percussion tool in parting bead, form right ports in the right side repeated stock of parting bead； Left hole and right ports are all through restrictive coating, and left hole and right ports are all interrupted；Complete to can be used to display whether place In the manufacture of the cable of working condition.
CN201610095633.4A 2014-08-27 2014-08-27 Cable capable of displaying whether being in working condition and fabrication method thereof Expired - Fee Related CN105609192B (en)

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CN201410426837.2A CN104332219B (en) 2014-08-27 2014-08-27 A kind of display whether in running order cable

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CN201610078851.7A Active CN105489280B (en) 2014-08-27 2014-08-27 It is a kind of can displays temperature change cable insulating layer material
CN201610031018.7A Expired - Fee Related CN105609191B8 (en) 2014-08-27 2014-08-27 It is a kind of to can be used to display whether in running order cable
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CN201610031018.7A Expired - Fee Related CN105609191B8 (en) 2014-08-27 2014-08-27 It is a kind of to can be used to display whether in running order cable

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CN105820532A (en) * 2016-04-18 2016-08-03 昆山初本电子科技有限公司 Thermochromic LED lamp light guide plate formula
CN108623900A (en) * 2017-03-26 2018-10-09 合肥杰事杰新材料股份有限公司 A kind of wear-resisting tag card of heat discoloration and preparation method thereof carried for high-temperature operation personnel
CN108986967A (en) * 2018-08-30 2018-12-11 江苏港通电缆有限公司 A kind of novel oval cable

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CN104332219A (en) 2015-02-04
CN104332219B (en) 2016-07-06
CN105609192A (en) 2016-05-25
CN105489280A (en) 2016-04-13
CN105609191B8 (en) 2017-06-20
CN105609191A (en) 2016-05-25
CN105489280B (en) 2018-02-09

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