CN107507668B - Fireproof electric wire and preparation method thereof - Google Patents
Fireproof electric wire and preparation method thereof Download PDFInfo
- Publication number
- CN107507668B CN107507668B CN201710789095.3A CN201710789095A CN107507668B CN 107507668 B CN107507668 B CN 107507668B CN 201710789095 A CN201710789095 A CN 201710789095A CN 107507668 B CN107507668 B CN 107507668B
- Authority
- CN
- China
- Prior art keywords
- layer
- core
- conductive
- conductive wire
- wire core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- 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
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing 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
- H01B7/17—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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
- Cable Accessories (AREA)
Abstract
The invention provides a fireproof electric wire and a preparation method thereof, wherein the fireproof electric wire comprises a conductive wire core and is characterized in that: the conductive wire core is formed by arranging a plurality of copper wire bundles, a strengthening layer is sleeved between the conductive wire core and the ceramic polyethylene layer, and the strengthening layer comprises an elastic part attached to the conductive wire core and a strengthening rib parallel to the extending direction of the conductive wire core.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to a fireproof wire and a preparation method thereof.
Background
The wiring wires used in public places such as chemical industry, petrochemical industry, electric power, nuclear power, subways, markets, libraries and the like have good fireproof performance besides meeting the general requirements of common wires, and are suitable for flammable dangerous environments and meet the requirements of intrinsic safety. In the conventional various types of wires, damage or interference of factors such as current overload, mechanical collision, high temperature and high heat, acid-base corrosion and the like often occur in daily operation, so that normal use is affected, and the intrinsic safety of the conventional wires is further improved.
Disclosure of Invention
The invention aims to provide a fireproof electric wire and a preparation method thereof, which can effectively prevent fire, resist high temperature and high heat and have good tensile mechanical properties.
In order to achieve the purpose, the invention adopts the following technical scheme:
including electrically conductive sinle silk, its characterized in that: the conductive wire core is formed by arranging a plurality of copper wire bundles, a strengthening layer is sleeved between the conductive wire core and the ceramic polyethylene layer, and the strengthening layer comprises an elastic part attached to the conductive wire core and a strengthening rib parallel to the extending direction of the conductive wire core.
Therefore, the ceramic polyethylene layer can be ceramic and has a fireproof effect after meeting fire, and the reinforcing layer ensures the tensile strength of the electric wire and avoids damage to the ceramic polyethylene layer and the crosslinked polyethylene layer in the use process.
Preferably, the reinforcing ribs are adjacent to one side of the ceramic polyethylene layer and integrally provided with the elastic part, and gaps are arranged between adjacent reinforcing ribs in parallel to the extending direction of the conductive wire core and are alternately arranged along the circumferential direction of the conductive wire core.
Preferably, rubber is filled between the reinforcing ribs, and a silane coupling agent is coated between the rubber and the ceramic polyethylene layer.
Thus, the filled rubber plays a role of buffering, and the silane coupling agent increases the surface strength of the ceramic-capable polyethylene layer.
Preferably, a corrosion-resistant paint layer is arranged on the outer side of the sheath layer.
Thus, damage or interference of factors such as acid-base corrosion and the like is avoided.
Preferably, the copper wire has a diameter of 1.0-2.5mm.
A method of making a fire resistant wire comprising the steps of:
step 1, stranding copper wires with the diameters of 1.0-2.5mm to form a conductive wire core;
step 2, coating a reinforcing layer outside the conductive wire core;
step 3, extruding a ceramic polyethylene layer outside the reinforced layer;
step 4, extruding a cross-linked polyethylene layer outside the ceramic polyethylene layer;
and 5, placing the electric wires in a steam heating box for heating treatment.
Preferably, the step 5 further includes stripping a section of each layer outside the conductive wire core from the end portion of the wire to expose the conductive wire core at the position, winding and fixing the conductive wire core formed by hinging a plurality of strands of copper wires at the rear end of the hook, winding the joint portion by using an insulating tape, sleeving 5-8 spiral check rings on the outer side of the conductive wire core, sleeving openings of adjacent spiral check rings along the axial direction of the conductive wire core, connecting a traction rope on the hook, starting an extruder, pulling the traction rope, wrapping the traction rope, the joint and the spiral check rings with a rubber extrusion layer, and cutting off the end portion of the wire after heating treatment.
Therefore, the spiral check rings which are arranged in a staggered way can expand to a certain extent when steam is heated, and the rubber extrusion coating is matched to prevent steam from entering the inside of the electric wire.
Preferably, the step 2 further comprises filling rubber between the alternately arranged reinforcing ribs, and coating a silane coupling agent on the outer side.
In summary, the invention has the following advantages:
(1) Because the diameter of the electric wire is relatively smaller and the strength cannot be ensured, the mechanical strength of the electric wire and the surface strength of the ceramic polyethylene layer are enhanced by the reinforcing layer and the silane coupling agent, the damage of the ceramic polyethylene layer and the crosslinked polyethylene layer is avoided, and the fireproof and high-temperature-resistant effects are ensured.
(2) The spiral retaining rings that crisscross setting will have certain degree of inflation when steam heating, radially extrudees the rubber extrusion coating along the electric wire in order to avoid steam to get into inside the electric wire, blocks effectually.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
fig. 3 is a schematic view of a cable and hook connection structure.
The reference numerals in the figures are as follows:
1. the cable comprises a conductive wire core, a ceramic polyethylene layer, a crosslinked polyethylene layer, a sheath layer, a reinforcing layer, an elastic part, a reinforcing rib, a rubber layer, an anticorrosive paint layer, a hook and a spiral retainer ring.
Detailed Description
The invention will be further described with reference to examples of embodiments in the drawings.
As shown in fig. 1 and 2, the electric wire comprises a conductive wire core 1, wherein a ceramic polyethylene layer 2, a crosslinked polyethylene layer 3 and a sheath layer 4 are wrapped outside the conductive wire core 1, the conductive wire core 1 is formed by arranging a plurality of copper wires in a bundle shape, and the diameter of each copper wire is 1.0-2.5mm. A reinforcing layer 5 is sleeved between the conductive wire core 1 and the ceramic polyethylene layer 2, and the reinforcing layer 5 comprises an elastic part 51 attached to the conductive wire core 1 and reinforcing ribs 52 parallel to the extending direction of the conductive wire core 1. The ceramic polyethylene layer 2 can be ceramic and has fireproof effect after meeting fire. The reinforcing layer 5 ensures the mechanical strength of the wire, and the reinforcing ribs 51 and the gaps between the reinforcing ribs enable the strength of the wire to be changed from small to large and to be increased sharply at a certain stage in the bending and twisting processes of the wire, so that the ceramic-capable polyethylene layer 2 and the crosslinked polyethylene layer 3 are prevented from being damaged in the use process.
The reinforcing ribs 52 are adjacent to the side of the ceramic polyethylene layer 2 and are integrally provided with the elastic portion 51, and gaps are provided between adjacent reinforcing ribs 52 in parallel with the extending direction of the conductive wire core 1 and are alternately arranged along the circumferential direction of the conductive wire core. The cross section of the reinforcing ribs 52 is semicircular, and the gap between adjacent reinforcing ribs 52 is smaller than the radius of the reinforcing ribs 52.
The reinforcing ribs 52 are steel wires or FRP rods, and the reinforcing ribs 52 are uniformly arranged inside the elastic portion 51. Rubber is filled between the reinforcing ribs 52, and a silane coupling agent is coated between the rubber layer 6 and the ceramic polyethylene layer 2. The filled rubber plays a role in buffering, the silane coupling agent increases the surface strength of the ceramic polyethylene layer 2, avoids the damage of the ceramic polyethylene layer 2 and the crosslinked polyethylene layer 3, and ensures the fireproof and high-temperature-resistant effects. The outer side of the sheath layer 4 is provided with an anti-corrosion paint layer 7 so as to avoid damage or interference of factors such as acid-base corrosion and the like.
A method of making a fire resistant wire comprising the steps of:
step 1, stranding copper wires with the diameters of 1.0-2.5mm to form a conductive wire core 1;
step 2, wrapping a reinforcing layer 5 outside the conductive wire core 1;
step 3, extruding and wrapping the ceramic polyethylene layer 2 outside the reinforced layer 5;
step 4, extruding a crosslinked polyethylene layer 3 outside the ceramic polyethylene layer 2;
step 5, peeling off each layer outside a section of conductive wire core 1 to expose the conductive wire core 1 at the position, winding and fixing the conductive wire core 1 formed by hinging a plurality of copper wires at the rear end of a hook 8 and winding the joint part by using an insulating tape, sleeving 5-8 spiral check rings 9 on the outer side of the conductive wire core 1 close to the joint part, arranging the openings of the adjacent spiral check rings 9 in a staggered manner along the axial direction of the conductive wire core 1, connecting a traction rope on the hook 8, starting an extruder to pull the traction rope, wrapping the traction rope, the joint and the spiral check rings 9 with a rubber extrusion layer, and cutting off the end of the wire after heating treatment. The electric wire is placed in a steam heating box for heat treatment to improve the temperature bearing capacity of the crosslinked polyethylene layer 3.
The staggered spiral check rings 9 expand to a certain extent when steam is heated, and the rubber extrusion layer is extruded along the radial direction of the electric wire so as to prevent steam from entering the inside of the electric wire.
Step 2 further comprises filling rubber between the alternately arranged reinforcing ribs 52, and coating a silane coupling agent on the outer side.
The above description is only illustrative of the invention so that those skilled in the art can fully practice the present invention, but not limiting the invention, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without inventive contribution, as desired, which are not creatively modified, but are protected by patent laws within the scope of the claims of the present invention.
Claims (5)
1. A method of making a fire resistant wire comprising the steps of:
step 1, stranding copper wires with the diameters of 1.0-2.5mm to form a conductive wire core (1);
step 2, wrapping a reinforcing layer (5) outside the conductive wire core (1);
step 3, extruding and wrapping the ceramic polyethylene layer (2) outside the reinforced layer (5);
step 4, extruding a crosslinked polyethylene layer (3) outside the ceramic polyethylene layer (2);
step 5, placing the electric wires in a steam heating box for heating treatment;
the step 5 comprises the steps of stripping off each layer outside a section of the conductive wire core (1) to expose the conductive wire core (1) at the position, winding and fixing the conductive wire core (1) formed by hinging a plurality of strands of copper wires on a hook (8) and winding a joint part by using an insulating tape, sleeving 5-8 spiral check rings (9) on the outer side of the conductive wire core (1) close to the joint part, staggering openings of adjacent spiral check rings (9) along the axial direction of the conductive wire core (1), connecting a traction rope on the hook (8), starting an extruder, pulling the traction rope, wrapping the traction rope, the joint and the spiral check rings (9) with a rubber extrusion layer, and cutting off the end of the wire after heating treatment;
fireproof electric wire, including conductive core (1), but conductive core (1) parcel pottery polyethylene layer (2), crosslinked polyethylene layer (3) and restrictive coating (4), conductive core (1) are many copper wire hinges and form, conductive core (1) with but cup joint enhancement layer (5) between pottery polyethylene layer (2), enhancement layer (5) are including attaching elastic component (51) on conductive core (1) and be on a parallel with strengthening rib (52) of conductive core (1) extending direction.
2. The method of manufacturing a fire-resistant wire according to claim 1, wherein the step 2 further comprises filling rubber between the alternately arranged reinforcing ribs (52), and coating a silane coupling agent on the outer side.
3. The method for manufacturing a fireproof electric wire according to claim 1, wherein: the reinforcing ribs (52) are bulges which are close to one side of the ceramic polyethylene layer (2) and are integrally arranged with the elastic part (51), gaps are arranged between adjacent reinforcing ribs (52) in the extending direction of the conductive wire core (1) in parallel, and the reinforcing ribs are alternately arranged along the circumferential direction of the conductive wire core (1).
4. The method for manufacturing a fireproof electric wire according to claim 1, wherein: a rubber layer (6) is filled between the reinforcing ribs (52), and a silane coupling agent is coated between the rubber layer (6) and the ceramic polyethylene layer (2).
5. The method for manufacturing a fireproof electric wire according to claim 1, wherein: an anti-corrosion paint layer (7) is arranged on the outer side of the sheath layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789095.3A CN107507668B (en) | 2017-09-05 | 2017-09-05 | Fireproof electric wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789095.3A CN107507668B (en) | 2017-09-05 | 2017-09-05 | Fireproof electric wire and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107507668A CN107507668A (en) | 2017-12-22 |
| CN107507668B true CN107507668B (en) | 2023-09-08 |
Family
ID=60694837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710789095.3A Active CN107507668B (en) | 2017-09-05 | 2017-09-05 | Fireproof electric wire and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107507668B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335794A (en) * | 2018-02-05 | 2018-07-27 | 王栋 | A kind of antidetonation copper stranded conductor applied to cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205140594U (en) * | 2015-09-07 | 2016-04-06 | 徐永进 | Strengthen jam -proof digital communication cable |
| CN105632618A (en) * | 2015-12-24 | 2016-06-01 | 天津信天电子科技有限公司 | Impact-resistant signal cable |
| CN105949490A (en) * | 2016-05-12 | 2016-09-21 | 株洲时代新材料科技股份有限公司 | Surface treating method for ultra-high molecular weight polyethylene skeleton material for rubber damping products and application |
| WO2016156627A1 (en) * | 2015-03-31 | 2016-10-06 | Grupo General Cable Sistemas, S.L. | Fire protection arrangement for cables |
| CN207474107U (en) * | 2017-09-05 | 2018-06-08 | 福建通宇电缆有限公司 | A kind of flame-proof wire |
-
2017
- 2017-09-05 CN CN201710789095.3A patent/CN107507668B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016156627A1 (en) * | 2015-03-31 | 2016-10-06 | Grupo General Cable Sistemas, S.L. | Fire protection arrangement for cables |
| CN205140594U (en) * | 2015-09-07 | 2016-04-06 | 徐永进 | Strengthen jam -proof digital communication cable |
| CN105632618A (en) * | 2015-12-24 | 2016-06-01 | 天津信天电子科技有限公司 | Impact-resistant signal cable |
| CN105949490A (en) * | 2016-05-12 | 2016-09-21 | 株洲时代新材料科技股份有限公司 | Surface treating method for ultra-high molecular weight polyethylene skeleton material for rubber damping products and application |
| CN207474107U (en) * | 2017-09-05 | 2018-06-08 | 福建通宇电缆有限公司 | A kind of flame-proof wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107507668A (en) | 2017-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10249412B2 (en) | Composite cable | |
| RU2493643C2 (en) | Assembly for splicing electric cables with braided shield | |
| KR20120138763A (en) | Compression connector and assembly for composite cables and methods for making and using same | |
| JP2016110836A (en) | Cabtyre cable and cable with connector | |
| JP6506593B2 (en) | Cab-tire cable and cable with connector | |
| CN107507668B (en) | Fireproof electric wire and preparation method thereof | |
| CN110570992B (en) | Production process of magnetic suspension track traffic long stator cable | |
| EP2051261A2 (en) | Electric cable | |
| CN201215736Y (en) | Electric power cord for movement | |
| CN210429344U (en) | Special long stator cable for magnetic suspension | |
| CN210692161U (en) | Resistance to compression fire-retardant type copper cable | |
| JP7162939B2 (en) | Power cable, its method of manufacture, and its use | |
| JP5792120B2 (en) | High-frequency current wire | |
| JP2009193949A (en) | Foma for superconducting cable, its manufacturing method and superconducting cable | |
| RU2749588C1 (en) | New special pump and compressor pipe for electric submersible pump for oil production and its production method | |
| JP2015225835A (en) | Overhead transmission line and production method of overhead transmission wire | |
| CN211742734U (en) | Rubber sleeve cable with strong tensile strength | |
| JP7073871B2 (en) | Conductors, wires and cables | |
| CN110867276B (en) | Torque balanced gas sealed wired cable | |
| JP5832035B2 (en) | Tape-wrap insulation connection for power cables | |
| CN112542264A (en) | Power cable for ultra-flexible high-reliability welding robot and preparation method | |
| CN203102891U (en) | Corrosion resistance and high-temperature resistance control flexible cable | |
| CN204375447U (en) | A kind of oil resistant is anti-pulls reel control cables | |
| CN217606590U (en) | Plastic insulated cable | |
| JP7399988B2 (en) | power cable termination system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230814 Address after: 830000 No. 777, Kangzhuang East Road, chemical industry park, Midong District, Urumqi City, Xinjiang Uygur Autonomous Region Applicant after: XINJIANG HUYANG CABLE MANUFACTURING CO.,LTD. Address before: No. 1, Ancient Locust Fragment, Binhai Industrial Concentration Zone, Fuzhou City, 350000 Fujian Province Applicant before: FUJIAN TONGYU CABLES Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |