CN117393245A - Processing method of flame-retardant cable - Google Patents
Processing method of flame-retardant cable Download PDFInfo
- Publication number
- CN117393245A CN117393245A CN202311371813.7A CN202311371813A CN117393245A CN 117393245 A CN117393245 A CN 117393245A CN 202311371813 A CN202311371813 A CN 202311371813A CN 117393245 A CN117393245 A CN 117393245A
- Authority
- CN
- China
- Prior art keywords
- flame
- retardant
- flame retardant
- mica tape
- guide 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.)
- Pending
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 104
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 239000010445 mica Substances 0.000 claims abstract description 40
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 10
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 9
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 5
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000005662 Paraffin oil Substances 0.000 claims description 3
- 239000000077 insect repellent Substances 0.000 claims description 3
- 239000003128 rodenticide Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 239000002994 raw material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H01B13/02—Stranding-up
-
- 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
- H01B7/29—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
- 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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- 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)
Abstract
The invention discloses a processing method of a flame-retardant cable, which comprises the following steps: s1: manufacturing a conductor valve, twisting a plurality of guide wires into a strand by a twisting machine, and compacting the strand by an extruding machine; s2: manufacturing a guide core, twisting a plurality of conductor petals to form the guide core, and extruding the guide core by using an extruding machine to compact the guide core; s3: manufacturing a flame-retardant layer, covering the surface of the mica tape with a flame retardant, and coating the guide core with the mica tape covered with the flame retardant to form an insulating layer; s4: manufacturing a protective outer layer; according to the invention, the prepared flame retardant is uniformly coated on the surface of the mica tape by using the coating machine, the mica tape has a fireproof flame-retardant effect, the fireproof flame-retardant effect of the mica tape coated with the flame retardant is further improved, meanwhile, the sticky flame retardant can increase the bonding effect of the mica tape and the guide core, and the gaps between the mica tapes can be filled, so that the flame-retardant effect of the flame-retardant cable is further improved.
Description
Technical Field
The invention belongs to the technical field of cable processing, and particularly relates to a processing method of a flame-retardant cable.
Background
A cable is an electric energy or signal transmission device, typically consisting of multiple wires, and has a power cable, a compensation cable, a shielding cable, a flame-retardant cable, a signal cable, etc.; among them, flame-retardant cables are generally used in high-power stations, and are required to have excellent flame-retardant effects while maintaining excellent physical properties due to the establishment of stricter fire safety standards. The insulation layer and the sheath layer of the existing flame-retardant cable are generally prepared by mixing a single flame retardant with a cable guide core; because the flame retardant material is single, the cable is poor in flame retardant effect in the use process, and a large amount of smoke and toxic gas can be generated, so that the flame retardant effect and the service life of the cable are affected, and the durable fireproof flame retardant effect is difficult to achieve.
Disclosure of Invention
The invention aims to provide a processing method of a flame-retardant cable, which solves the problem of poor flame-retardant effect of the cable.
The invention is realized by the following technical scheme:
the processing method of the flame-retardant cable comprises the following steps:
s1: manufacturing a conductor valve, twisting a plurality of guide wires into a strand by a twisting machine, and compacting the strand by an extruding machine;
s2: manufacturing a guide core, twisting a plurality of conductor petals to form the guide core, and extruding the guide core by using an extruding machine to compact the guide core;
s3: manufacturing a flame-retardant layer, covering the surface of the mica tape with a flame retardant, and coating the guide core with the mica tape covered with the flame retardant to form the flame-retardant layer;
s4: and manufacturing a protective outer layer.
Further, the flame retardant is prepared by mixing 50-60% of aluminum hydroxide, 20-30% of dimethyl methylphosphonate and 10-20% of silica sol.
Further, the method for covering the surface of the mica tape with the fireproof coating comprises the steps of adding a flame retardant into a coating machine, enabling the mica tape to pass through a coating working area of the coating machine, enabling the surface of the mica tape to be uniformly covered with the flame retardant, and then performing drying treatment in the shade to form the flame retardant layer.
Further, the raw materials of the protective outer layer comprise: binder, plasticizer and halogen-free flame retardant.
Further, the adhesive is any one or a mixture of two of 40-50% of phenolic resin or high-density polyethylene; the plasticizer is any one of naphthenic oil or paraffin oil of 20% -30%, and the flame retardant is one or a mixture of two of antimony trioxide or magnesium hydroxide of 20% -30%.
Further, a processing aid is added to the flame retardant, and the processing aid comprises any one or a mixture of more than two of a colorant, an insect repellent and a rodenticide.
Compared with the prior art, the invention has the following advantages:
1) According to the invention, the prepared flame retardant is uniformly coated on the surface of the mica tape by using the coating machine, the mica tape has a fireproof flame-retardant effect, the fireproof flame-retardant effect of the mica tape coated with the flame retardant is further improved, meanwhile, the sticky flame retardant can increase the bonding effect of the mica tape and the guide core, and the gaps between the mica tapes can be filled, so that the flame-retardant effect of the flame-retardant cable is further improved.
2) According to the invention, the halogen-free flame retardant is used for manufacturing the protective outer layer, and the colorant and the insect-proof agent are added into the halogen-free flame retardant, so that the flame-retardant cable can resist insects and corrosion, the flame-retardant effect of the flame-retardant cable is further improved, and the durability of the flame-retardant cable is also improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of a flame retardant cable according to the present invention.
Wherein: 1-a guide core, 2-a flame retardant layer and 3-a protective outer layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
Example 1:
the main processing method in this embodiment, as shown in fig. 1, is a processing method of a flame retardant cable, including the following steps:
s1: manufacturing a conductor valve, twisting a plurality of guide wires into a strand by a twisting machine, and compacting the strand by an extruding machine;
s2: manufacturing a guide core, twisting a plurality of conductor petals to form the guide core, and extruding the guide core by using an extruding machine to compact the guide core;
s3: manufacturing a flame-retardant layer, covering the surface of the mica tape with a flame retardant, and coating the guide core with the mica tape covered with the flame retardant to form the flame-retardant layer;
s4: and manufacturing a protective outer layer.
In the processing process of the flame-retardant cable, a plurality of guide wires are firstly penetrated into a stranding machine, the plurality of guide wires are stranded to form conductor petals through rotation of the stranding machine, then the conductor petals are penetrated into the stranding machine again after being compacted by extruding a floor, the plurality of conductor petals are stranded to form a guide core, and then the guide core is extruded by an extruding machine; then preparing a flame retardant, pouring the prepared flame retardant into a liquid storage tank of a coating machine, penetrating a mica tape into the coating machine, and enabling the mica tape to be uniformly coated on the surface of the mica tape by the flame retardant; and then, the mica tape coated with the flame retardant is used for uniformly wrapping the guide core, a flame retardant layer is formed, the flame retardant can play a role in further flame retardance, meanwhile, the flame retardant is viscous fluid, gaps can be possibly generated when the mica tape is wrapped and wrapped around the guide core, and the flame retardant can fill the gaps between the mica tapes, so that the flame retardant effect of the flame retardant layer is better.
Example 2:
the present embodiment further defines the components of a flame retardant made by mixing 50% -60% of aluminum hydroxide, 20% -30% of dimethyl methylphosphonate and 10% -20% of silica sol based on the above embodiments. Preferably, the flame retardant is prepared by mixing 50% aluminum hydroxide, 30% dimethyl methylphosphonate and 20% silica sol, and mixing the powdery aluminum hydroxide, dimethyl methylphosphonate and silica sol, and then stirring thoroughly to form a viscous flame retardant. Other portions of this embodiment are the same as those of the above embodiment, and will not be described here again.
Example 3:
the method for coating the mica tape with the fire retardant is further described on the basis of the embodiment, and the method for coating the surface of the mica tape with the fire retardant comprises the steps of adding the fire retardant into a coating machine, enabling the mica tape to pass through a coating working area of the coating machine, enabling the surface of the mica tape to be uniformly coated with the fire retardant, and then performing drying in the shade to form a fire retardant layer. After the mica tape is coated with the flame retardant, the guide core is immediately coated, and meanwhile, the sticky flame retardant can generate a certain bonding effect, so that the mica tape is firmly attached to the guide core; in addition, the fire retardant can fill gaps among the mica tapes, and can also increase the toughness of the mica tapes and prevent breakage during winding; and finally, placing the guide core coated with the mica tape at a shade place for drying in the shade, wherein the drying time is preferably 8-12 hours, and checking the coating quality after drying in the shade. Other portions of this embodiment are the same as those of the above embodiment, and will not be described here again.
Example 4:
this embodiment further defines, on the basis of the above embodiment, raw materials of the protective outer layer, including: binder, plasticizer and halogen-free flame retardant. The halogen-free flame retardant can increase the flame retardant effect of the protective outer layer, and can improve the corrosion resistance of the protective outer layer, so that the protective outer layer is more durable. Other portions of this embodiment are the same as those of the above embodiment, and will not be described here again.
Example 5:
the embodiment is based on the above embodiment, the specific gravity of each raw material in the protective outer layer is further limited, and the adhesive is any one or a mixture of two of 40% -50% of phenolic resin or high-density polyethylene; the plasticizer is any one of naphthenic oil or paraffin oil of 20% -30%, and the flame retardant is one or a mixture of two of antimony trioxide or magnesium hydroxide of 20% -30%. Preferably, the protective outer layer is made from a mixture of 50% phenolic resin and high density polyethylene, 30% naphthenic oil and 20% antimony trioxide and magnesium hydroxide, wherein the ratio between phenolic resin and high density polyethylene is preferably 3 to 2, and the ratio between antimony trioxide and magnesium hydroxide is preferably 2 to 1. Other portions of this embodiment are the same as those of the above embodiment, and will not be described here again.
Example 6:
in this embodiment, based on the above embodiment, a processing aid is further added to the flame retardant, where the processing aid includes any one or a mixture of two or more of a colorant, an insect repellent, and a rodenticide. The auxiliary processing agent is used for improving the durability of the cable protective outer layer, the auxiliary processing agent is preferably a mixture of a coloring agent and an insect-resist agent, the auxiliary processing agent is added into the halogen-free flame retardant when the halogen-free flame retardant is prepared, so that the halogen-free flame retardant is uniformly mixed, and finally the prepared protective outer layer slurry is injected into an extruding machine, so that the prepared protective outer layer slurry is attached to the surface of a guide core coated with the mica tape. Other portions of this embodiment are the same as those of the above embodiment, and will not be described here again.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are used to indicate orientations or positional relationships based on those shown in the drawings, or those that are conventionally put in use in the product of the present invention, they are merely used to facilitate description of the present invention and simplify description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present invention, if any, do not denote absolute levels or overhangs, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present invention fall within the scope of the present invention.
Claims (6)
1. The processing method of the flame-retardant cable is characterized by comprising the following steps of:
s1: manufacturing a conductor valve, twisting a plurality of guide wires into a strand by a twisting machine, and compacting the strand by an extruding machine;
s2: manufacturing a guide core, twisting a plurality of conductor petals to form the guide core, and extruding the guide core by using an extruding machine to compact the guide core;
s3: manufacturing a flame-retardant layer, covering the surface of the mica tape with a flame retardant, and coating the guide core with the mica tape covered with the flame retardant to form the flame-retardant layer;
s4: and manufacturing a protective outer layer.
2. The method for processing the flame-retardant cable according to claim 1, wherein the flame retardant is prepared by mixing 50-60% of aluminum hydroxide, 20-30% of dimethyl methylphosphonate and 10-20% of silica sol.
3. The method for manufacturing the flame-retardant cable according to claim 2, wherein the method for covering the surface of the mica tape with the fireproof coating is that the flame retardant is added into a coating machine, the mica tape passes through a coating working area of the coating machine, and the surface of the mica tape is uniformly covered with the flame retardant and then is subjected to a drying treatment in the shade to form the flame-retardant layer.
4. The method of processing a flame retardant cable of claim 1, wherein the protective outer layer comprises: binder, plasticizer and halogen-free flame retardant.
5. The method of processing a flame retardant cable of claim 4 wherein the binder is 40% -50% phenolic resin or high density polyethylene, either or a mixture of both; the plasticizer is any one of naphthenic oil or paraffin oil of 20% -30%, and the flame retardant is one or a mixture of two of antimony trioxide or magnesium hydroxide of 20% -30%.
6. The method of processing a flame-retardant cable according to claim 5, wherein a processing aid is added to the flame retardant, and the processing aid comprises any one or a mixture of two or more of a coloring agent, an insect-repellent agent and a rodenticide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371813.7A CN117393245A (en) | 2023-10-23 | 2023-10-23 | Processing method of flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371813.7A CN117393245A (en) | 2023-10-23 | 2023-10-23 | Processing method of flame-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117393245A true CN117393245A (en) | 2024-01-12 |
Family
ID=89471581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311371813.7A Pending CN117393245A (en) | 2023-10-23 | 2023-10-23 | Processing method of flame-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117393245A (en) |
-
2023
- 2023-10-23 CN CN202311371813.7A patent/CN117393245A/en active Pending
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