CN112927847B - High-temperature-resistant and long-service-life cable and preparation method thereof - Google Patents
High-temperature-resistant and long-service-life cable and preparation method thereof Download PDFInfo
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- CN112927847B CN112927847B CN202110164083.8A CN202110164083A CN112927847B CN 112927847 B CN112927847 B CN 112927847B CN 202110164083 A CN202110164083 A CN 202110164083A CN 112927847 B CN112927847 B CN 112927847B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 68
- 239000004642 Polyimide Substances 0.000 claims abstract description 11
- 229920001721 polyimide Polymers 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000010030 laminating Methods 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005987 sulfurization reaction Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- 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
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- 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
- H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation
- H01B7/385—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation comprising a rip cord or wire
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a high-temperature-resistant and long-life cable and a preparation method thereof, wherein supporting soft rods are uniformly glued on the inner side end surface of an outer protective shell, arc-shaped fixed grooves are formed in the inner sides of the supporting soft rods, polyimide filling materials are filled in the arc-shaped fixed grooves, embedded grooves are symmetrically formed in two end parts of the outer protective shell, pull wires are embedded in the embedded grooves, and an inner protective shell is wrapped in the outer protective shell. The service life of the cable is prolonged, and the safety performance is high.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a high-temperature-resistant and long-service-life cable and a preparation method thereof.
Background
A cable is an electric energy or signal transmission device, generally made of one or more mutually insulated conductors and an outer insulating protective layer, a wire for transmitting electric power or information from one place to another, generally a cable like a rope formed by twisting several or several groups of wires, each group of wires being mutually insulated and often twisted around a center, the whole being covered with a highly insulating covering layer, the cable having characteristics of internal energization and external insulation, and being widely used in electric power engineering for transmitting electric energy;
however, the external protective shell of the cable used in the current power engineering is soft in quality, weak in protection capability on the cable wire and not ideal enough in heat resistance, and when the temperature is high, the cable is seriously softened, so that the service life of the cable is influenced, and the safety of the cable is reduced.
Disclosure of Invention
The invention provides a high-temperature-resistant and long-life cable and a preparation method thereof, which can effectively solve the problems that the external protective shell of the cable used in the existing power engineering in the background technology has soft quality, weak protection capability on a cable wire and unsatisfactory heat resistance, and the cable becomes soft seriously at higher temperature, so that the service life of the cable is influenced, and the safety of the cable is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a high-temperature-resistant and long-service-life cable comprises an outer protective shell, wherein supporting soft rods are evenly glued to the inner side end face of the outer protective shell, arc-shaped fixing grooves are formed in the inner sides of the supporting soft rods, polyimide fillers are filled in the arc-shaped fixing grooves, embedded grooves are symmetrically formed in the two end portions of the outer protective shell, pulling wires are embedded in the embedded grooves, the inner protective shell is wrapped in the outer protective shell, a metal shielding shell is sleeved outside the inner protective shell, and a red copper shielding net is sleeved outside the metal shielding shell;
the inboard parcel of inner protective housing has a plurality of insulating casings, the wire is installed in the inside embedding of insulating casing, the mid-mounting of insulating casing has fixed round bar, the outside butt fusion of fixed round bar has the connecting plate, a side end face of connecting plate is kept away from fixed round bar position department and is connected with elastic connection pipe, the butt fusion of the inboard position department of corresponding inner protective housing in the elastic connection pipe outside has spacing laminating piece.
Preferably, the supporting soft rod is of an arc-shaped structure, the end faces of two sides of the supporting soft rod are glued to the end face of the inner side of the outer protective shell, and a plurality of connecting holes are formed in the middle of the polyimide filler.
Preferably, each end of the outer protective shell is provided with two embedded grooves, the length of each embedded groove is 5cm, and the length of each pull wire is 8 cm.
Preferably, the diameter of the insulating shell is three times that of the elastic connection pipe, and the thickness of the pipe wall of the elastic connection pipe is 0.5 mm.
Preferably, the fixed round rod is located in the middle of the plurality of insulation shells, the fixed round rod is attached to the outer sides of the insulation shells, a limiting gap is reserved between every two adjacent insulation shells, and the connecting plate is installed inside the limiting gap.
Preferably, fixed round bar, elastic connection pipe and spacing laminating piece formula structure as an organic whole, spacing laminating piece is the arc structure, a terminal surface and the inboard laminating of inner protective shell of spacing laminating piece are fixed.
A preparation method of a high-temperature-resistant and long-life cable comprises the following steps:
s1, weighing and classifying the raw materials, and then mixing;
s2, mixing, putting into an open mill for processing, and taking out for standing;
s3, adding a vulcanizing agent and a vulcanization accelerator, and vulcanizing;
and S4, after the treatment is finished, standing the sample for detection, and then treating the sample.
Further, the raw materials in the S1 are as follows by weight: 100-150 parts of insulating rubber powder, 1-3 parts of sulfur, 10-17 parts of transformer oil, 30-65 parts of talcum powder, 1-7 parts of wear-resistant carbon black and 1-1.5 parts of stearic acid.
Further, the temperature in the S2 is 150-190 ℃, and the heat treatment time is 7-15 min;
the sulfurization time of S3 is 25-35min, and the pressure is 10-13 Mpa.
Further, the mixed raw material in the S4 is an outer protective shell or an inner protective shell.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. through setting up outer protective housing, supporting soft pole, arc fixed slot and polyimide stopping, when the cable used under high temperature, because the inside soft pole of support of outer protective housing supports it, the inside polyimide stopping of arc fixed slot is difficult for taking place deformation under high temperature environment, supports outer protective housing, can be low temperature resistant simultaneously, the outer protective housing of cable outside is difficult for becoming soft and the sclerosis leads to breaking, the life of extension cable, and the security performance is high.
2. Through setting up the embedded groove, the pulling line, fixed round bar, the connecting plate, elastic connection pipe and spacing laminating piece, utilize fixed round bar, the connecting plate, the joint limit action of elastic connection pipe and spacing laminating piece, with the inside propping of inner protective housing, wire and insulating casing keep wholly inside the cable, difficult crisscross winding, when the cable erection wiring, can be earlier along the embedded groove pulling with the pulling line of cable outer protective housing tip, make the embedded groove tear, thereby tear outer protective housing tip, the convenience is peeled off outer protective housing, wiring.
3. Through setting up metal shield shell, red copper shield net, insulating housing and wire, shield external interference signal through inner protective housing, metal shield shell and red copper shield net, external interference when reducing the cable and carrying out information transmission makes the cable safer when carrying out information transmission.
4. The preparation method is simple and environment-friendly, the raw materials are few, the preparation process is smooth, the effect can meet the current use, the requirement greatly facilitates normal preparation, and the preparation method can be suitable for better popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the elastic connecting tube of the present invention;
FIG. 3 is a schematic view of the pull wire configuration of the present invention;
FIG. 4 is a schematic diagram of the structure of the red copper shielding mesh of the present invention;
FIG. 5 is a schematic structural view of steps of the production method of the present invention;
reference numbers in the figures: 1. an outer protective shell; 2. supporting the soft rod; 3. an arc-shaped fixing groove; 4. a polyimide filler; 5. a groove is embedded; 6. pulling the wire; 7. an inner protective shell; 8. a metal shield case; 9. a red copper shield mesh; 10. an insulating case; 11. a wire; 12. fixing the round rod; 13. a connecting plate; 14. an elastic connecting pipe; 15. and a limiting fitting sheet.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
as shown in fig. 1-4, the invention provides a technical scheme, a cable with high temperature resistance and long service life comprises an outer protective shell 1, wherein the inner side end surface of the outer protective shell 1 is uniformly glued with supporting soft rods 2, the inner side of each supporting soft rod 2 is provided with an arc-shaped fixed groove 3, polyimide filler 4 is filled in each arc-shaped fixed groove 3, each supporting soft rod 2 is of an arc-shaped structure, the two side end surfaces of each supporting soft rod 2 are glued with the inner side end surface of the outer protective shell 1, the middle part of each polyimide filler 4 is provided with a plurality of connecting holes to facilitate the bending of each supporting soft rod 2, the two end parts of the outer protective shell 1 are symmetrically provided with embedded grooves 5, pull wires 6 are embedded and installed in the embedded grooves 5, each end of the outer protective shell 1 is provided with two embedded grooves 5, the length of each embedded groove 5 is 5cm, the length of each pull wire 6 is 8cm, the outer protective shell 1 is conveniently pulled open, the inner protective shell 7 is wrapped in the outer protective shell 1, a metal shielding shell 8 is sleeved outside the inner protective shell 7, and a red copper shielding net 9 is sleeved outside the metal shielding shell 8;
the inner side of the inner protective shell 7 is wrapped with a plurality of insulating shells 10, wires 11 are embedded in the insulating shells 10, a fixed round rod 12 is installed in the middle of each insulating shell 10, a connecting plate 13 is welded to the outer portion of each fixed round rod 12, an elastic connecting pipe 14 is connected to the position, away from the fixed round rod 12, of the end face of one side of each connecting plate 13, and a limiting attaching piece 15 is welded to the position, corresponding to the inner side of the inner protective shell 7, of the outer side of each elastic connecting pipe 14;
the diameter of insulating casing 10 is the triple of elastic connection pipe 14 diameter, elastic connection pipe 14's wall thickness is 0.5mm, make things convenient for insulating casing 10 to extrude elastic connection pipe 14, fixed round bar 12 is located a plurality of insulating casing 10 middle part positions, fixed round bar 12 and the laminating of the insulating casing 10 outside, it has spacing space to reserve between two adjacent insulating casings 10, connecting plate 13 is installed inside spacing space, it is fixed to extrude insulating casing 10 conveniently, fixed round bar 12, elastic connection pipe 14 and spacing laminating piece 15 formula structure as an organic whole, spacing laminating piece 15 is the arc structure, a terminal surface of spacing laminating piece 15 is fixed with the inboard laminating of inner protective housing 7, make things convenient for the inside installation of inner protective housing 7 including spacing laminating piece 15.
Example 2:
as shown in fig. 5, the present invention provides a technical solution, a method for preparing a cable with high temperature resistance and long service life, comprising the following steps:
s1, weighing and classifying the raw materials, and then mixing;
s2, mixing, putting into an open mill for processing, and taking out for standing;
s3, adding a vulcanizing agent and a vulcanization accelerator, and vulcanizing;
and S4, after the treatment is finished, standing the sample for detection, and then treating the sample.
Further, the raw materials in the S1 are as follows by weight: 110 parts of insulating rubber powder, 2 parts of sulfur, 12 parts of transformer oil, 40 parts of talcum powder, 3 parts of wear-resistant carbon black and 1 part of stearic acid.
Further, the temperature in the S2 is 170 ℃, and the heat treatment time is 12 min;
the sulfurization time of S3 is 27min, and the pressure is 12 Mpa.
Further, the raw material mixture in S4 is an outer protective shell 1.
Example 3:
as shown in fig. 5, the present invention provides a technical solution, a method for preparing a cable with high temperature resistance and long service life, comprising the following steps:
s1, weighing and classifying the raw materials, and then mixing;
s2, mixing, putting into an open mill for processing, and taking out for standing;
s3, adding a vulcanizing agent and a vulcanization accelerator, and vulcanizing;
and S4, after the treatment is finished, standing the sample for detection, and then treating the sample.
Further, the raw materials in the S1 are as follows by weight: 120 parts of insulating rubber powder, 1.5 parts of sulfur, 12 parts of transformer oil, 42 parts of talcum powder, 3 parts of wear-resistant carbon black and 1 part of stearic acid.
Further, the temperature in the S2 is 180 ℃, and the heat treatment time is 12 min;
and the vulcanization time in the S3 is 30min, and the pressure is 12 Mpa.
Further, the raw material mixture in S4 is an outer protective shell 1.
Example 4:
as shown in fig. 5, the present invention provides a technical solution, a method for preparing a cable with high temperature resistance and long service life, comprising the following steps:
s1, weighing and classifying the raw materials, and then mixing;
s2, mixing, putting into an open mill for processing, and taking out for standing;
s3, adding a vulcanizing agent and a vulcanization accelerator, and vulcanizing;
and S4, after the treatment is finished, standing the sample for detection, and then treating the sample.
Further, the raw materials in the S1 are as follows by weight: 120 parts of insulating rubber powder, 2 parts of sulfur, 13 parts of transformer oil, 45 parts of talcum powder, 1 part of wear-resistant carbon black and 1 part of stearic acid.
Further, the temperature in the S2 is 160 ℃, and the heat treatment time is 10 min;
the sulfurization time of S3 is 27min, and the pressure is 12 Mpa.
Further, the raw material mixture in S4 is an outer protective shell 1.
The outer protective shell 1 prepared by examples 2-4 was tested and the results were as follows:
| contrast item | Example 1 | Example 2 | Example 3 |
| Hardness of | Is moderate | Is moderate | Is moderate |
| GB1408-78 test | Meets the standard | Meets the standard | Meets the standard |
| Softness | Superior food | Superior food | Superior food |
Through the contrast, hardness, national standard and compliance all can be fit for normal use, simple manufacture environmental protection moreover, and the raw materials are few, and preparation technology is smooth, but the effect can satisfy present use, and the demand has made things convenient for normal preparation greatly, can be fit for better using widely.
The working principle and the using process of the invention are as follows: when the cable is used at a high temperature, the flexible supporting rods 2 in the outer protective shell 1 support the cable, the polyimide filling materials 4 in the arc-shaped fixing grooves 3 are not easy to deform in a high-temperature environment, the outer protective shell 1 is supported, meanwhile, the cable can resist low temperature, the outer protective shell 1 outside the cable is not easy to soften and harden to cause fracture, the service life of the cable is prolonged, and the safety performance is high;
external interference signals are shielded through the inner protective shell 7, the metal shielding shell 8 and the red copper shielding net 9, so that the external interference of the cable during information transmission is reduced, and the cable is safer during information transmission;
when the cable is installed and wired, the pulling wire 6 at the end part of the outer protective shell 1 of the cable can be pulled along the embedded groove 5 to tear the embedded groove 5, so that the end part of the outer protective shell 1 is torn, the outer protective shell 1 is conveniently stripped, and the wire 11 is wired;
inside wire 11 and insulating casing 10 are through the joint limiting displacement of fixed round bar 12, connecting plate 13, elastic connecting pipe 14 and spacing laminating piece 15, with the inside bracing of inner protective housing 7, make 11 difficult extrudions of inside wire, wire 11 and insulating casing 10 keep wholly inside the cable, difficult crisscross winding.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A high temperature resistant high life's cable, includes outer protective housing (1), its characterized in that: the inner side end face of the outer protective shell (1) is evenly glued with soft supporting rods (2), arc-shaped fixing grooves (3) are formed in the inner sides of the soft supporting rods (2), polyimide fillers (4) are filled in the arc-shaped fixing grooves (3), embedded grooves (5) are symmetrically formed in two end portions of the outer protective shell (1), pull wires (6) are embedded in the embedded grooves (5), the inner protective shell (7) wraps the inner protective shell (1), a metal shielding shell (8) is sleeved outside the inner protective shell (7), and a red copper shielding net (9) is sleeved outside the metal shielding shell (8);
the inner side of the inner protective shell (7) is wrapped with a plurality of insulating shells (10), a wire (11) is embedded into the insulating shells (10), a fixed round rod (12) is installed in the middle of each insulating shell (10), a connecting plate (13) is welded to the outer portion of each fixed round rod (12), an elastic connecting pipe (14) is connected to the position, far away from the corresponding fixed round rod (12), of one side end face of each connecting plate (13), and a limiting attaching piece (15) is welded to the position, corresponding to the inner side of the inner protective shell (7), of the outer side of each elastic connecting pipe (14);
fixed pole (12), elastic connection pipe (14) and spacing laminating piece (15) formula structure as an organic whole, spacing laminating piece (15) are the arc structure, a terminal surface and the inboard laminating of inner protective housing (7) of spacing laminating piece (15) are fixed.
2. The cable with high temperature resistance and long service life according to claim 1, wherein the supporting soft rod (2) is of an arc-shaped structure, the end surfaces of the two sides of the supporting soft rod (2) are glued to the end surface of the inner side of the outer protective shell (1), and a plurality of connecting holes are formed in the middle of the polyimide filling material (4).
3. The cable with high temperature resistance and long service life according to claim 1, wherein each end of the outer protective shell (1) is provided with two embedded grooves (5), the length of each embedded groove (5) is 5cm, and the length of each pull wire (6) is 8 cm.
4. A high temperature resistant long life cable according to claim 1, wherein the diameter of said insulating shell (10) is three times the diameter of said elastic connection tube (14), and the wall thickness of said elastic connection tube (14) is 0.5 mm.
5. The cable with high temperature resistance and long service life according to claim 1, wherein the fixed round rod (12) is located at the middle position of the plurality of insulation shells (10), the fixed round rod (12) is attached to the outer sides of the insulation shells (10), a limiting gap is reserved between two adjacent insulation shells (10), and the connecting plate (13) is installed inside the limiting gap.
6. The preparation method of the high-temperature-resistant and long-life cable based on claim 1 is characterized in that: the method comprises the following steps:
s1, weighing and classifying the raw materials, and then mixing;
s2, mixing, putting into an open mill for processing, and taking out for standing;
s3, adding a vulcanizing agent and a vulcanization accelerator, and vulcanizing;
and S4, after the treatment is finished, standing the sample for detection, and then treating the sample.
7. The preparation method of the cable with high temperature resistance and long service life according to claim 6, wherein the raw materials in the S1 comprise the following components in parts by weight: 100-150 parts of insulating rubber powder, 1-3 parts of sulfur, 10-17 parts of transformer oil, 30-65 parts of talcum powder, 1-7 parts of wear-resistant carbon black and 1-1.5 parts of stearic acid.
8. The method as claimed in claim 6, wherein the temperature in S2 is 150-190 ℃, and the heat treatment time is 7-15 min;
the sulfurization time of S3 is 25-35min, and the pressure is 10-13 Mpa.
9. The method for preparing the cable with high temperature resistance and long service life according to claim 6, wherein the raw material mixture in S4 is an outer protective shell (1) or an inner protective shell (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110164083.8A CN112927847B (en) | 2021-02-05 | 2021-02-05 | High-temperature-resistant and long-service-life cable and preparation method thereof |
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| CN202110164083.8A CN112927847B (en) | 2021-02-05 | 2021-02-05 | High-temperature-resistant and long-service-life cable and preparation method thereof |
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| CN112927847A CN112927847A (en) | 2021-06-08 |
| CN112927847B true CN112927847B (en) | 2022-04-12 |
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| CN115831468B (en) * | 2023-01-13 | 2023-05-30 | 天元电缆集团有限公司 | Power cable for intelligent energy and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120027947A (en) * | 2010-09-14 | 2012-03-22 | 엘에스전선 주식회사 | Communication cable having flame retardant shield tape |
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| CN111446035A (en) * | 2020-05-18 | 2020-07-24 | 寇金臣 | Flexible high-temperature-resistant transmission signal cable |
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| CN112927847A (en) | 2021-06-08 |
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Denomination of invention: A cable with high temperature resistance and long service life and its preparation method Effective date of registration: 20221019 Granted publication date: 20220412 Pledgee: Postal Savings Bank of China Limited Linyi Branch Pledgor: SHANDONG ZHONGMAI CABLE Co.,Ltd. Registration number: Y2022980018846 |
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Denomination of invention: A high-temperature resistant and long-life cable and its preparation method Granted publication date: 20220412 Pledgee: Linyi Lanshan District Branch of China Postal Savings Bank Co.,Ltd. Pledgor: SHANDONG ZHONGMAI CABLE Co.,Ltd. Registration number: Y2024980005060 |