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Composite flexible insulator and manufacturing method and application thereof

A manufacturing method and technology of insulators, which are applied in the field of insulator technology and composite materials, can solve problems such as poor bending resistance and torsion resistance, and achieve the effects of environmental aging resistance, good electrical insulation, and soft structure

Active Publication Date: 2011-04-20
HEBEI SILICON VALLEY CHEM CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of composite insulator is of rigid structure, with poor bending and torsion resistance

Method used

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  • Composite flexible insulator and manufacturing method and application thereof
  • Composite flexible insulator and manufacturing method and application thereof
  • Composite flexible insulator and manufacturing method and application thereof

Examples

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example 1

[0028] Use the mixed tow of nylon and basalt fiber with a weight ratio of 1:1, degrease in a mixed solvent of ethanol and ether with a weight ratio of 1:1, dry it at 102°C for 1 hour, and then immerse it in bismaleimide resin. Pull extrusion molding at 200°C, and become a flexible core 101 after curing. Mix 100 parts by mass of a 1:1 compound of silicone rubber and fluorosilicone rubber with 40 to 50 parts by mass of fumed white carbon black at 60 to 100°C for 1 to 3 hours, add 50 to 70 parts by mass of alumina powder and 10 ~20 parts by mass of antimony oxide powder is refined at 100~150°C and vacuum degree of 80~90kPa for 2~3 hours, taken out and re-milled on a two-roll machine for 3 to 4 times, and 1~3 parts by mass of benzoyl peroxide and 1 ~3 parts by mass of UV-9 UV antioxidant, kneaded to become a rubber base material. The flexible core 101 is extruded with the above-mentioned rubber base material in an extruder, and vulcanized at a high temperature in a vulcanization ...

example 2

[0031] The mixed fiber braid of aramid fiber and polyphenylene sulfide fiber in a weight ratio of 2:1 is degreased in a mixed solvent of ethanol and ether in a weight ratio of 1:1, dried at 105°C for 1 hour, and then immersed in fluorosilicone rubber. ~160°C down-draw extrusion molding, and become a flexible core 101 after vulcanization. Mix 100 parts by mass of silicone rubber with 30-40 parts by mass of fumed white carbon black at 50-80°C for 1-3 hours, add 60-80 parts by mass of alumina powder and 10-20 parts by mass of antimony oxide powder at 100-80°C Refining at 130°C and a vacuum of 80-90kPa for 2-3 hours, take it out and re-refining it on a two-roller machine for 3-4 times and add 2-5 parts by mass of cumene peroxide and 1-3 parts by mass of UV-326 ultraviolet antioxidant , and knead evenly to become a rubber compound. Put the flexible core 101 in the mold, add the refined rubber material into the rubber material bin, start the injection molding machine, inject the ru...

example 3

[0034]Aramid fiber tow is degreased in a mixed solvent of ethanol and ether in a weight ratio of 1:2, dried at 105°C for 1 hour, then immersed in silicone resin, drawn down at 90-160°C, and cured to become a flexible core 101. Mix 100 parts by mass of fluorosilicone rubber with 40-50 parts by mass of fumed white carbon black at 80-120°C for 1-3 hours, add 50-90 parts by mass of alumina powder and 10-15 parts by mass of antimony oxide powder at 90 Refining at ~150°C and vacuum degree of 80~90kPa for 2~3 hours, take it out and remelt it on a two-roll machine for 3~4 times, and add 2~3 parts by mass of cumene peroxide and 1~2 parts by mass of UV-9 ultraviolet anti-aging agent, kneaded into a rubber base material. The flexible core 101 is extruded by adding the rubber base material in the extruder, and vulcanized at a high temperature of 120-180° C. in a vulcanization furnace to become the flexible shaft 100 with the outer sheath 102 . The shed 200 is made by molding the rubber ...

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Abstract

The invention relates to a composite flexible insulator and a manufacturing method and application thereof. The composite flexible insulator comprises a flexible shaft, a shed, a grading ring and a connecting interface, wherein the flexible shaft comprises a core and a protecting sleeve; the protecting sleeve coats the core; the shed is uniformly distributed outside the protecting sleeve; and the two ends of the core are respectively fixed with the grading ring and the connecting interface. The manufacturing method comprises the following steps of: (1) forming the flexible core; (2) refining a rubber matrix for the shed and the protecting sleeve; (3) manufacturing the flexible shaft and the shed; and (4) arranging the connecting interface and the grading ring. The composite flexible insulator can be used for high voltage overhead power transmission lines, and serves as a dead end insulator, a V string insulator and a spacing rod for preventing conductors from galloping after being connected with external conductors and supports.

Description

technical field [0001] The invention relates to a composite flexible insulator, a manufacturing method and an application thereof, and belongs to the field of insulator technology and composite material technology for overhead transmission lines in electric power systems. Background technique [0002] The insulators of overhead transmission lines in power systems have moved from porcelain and glass materials to the era of composite materials. Common line composite insulators have a rod-shaped rigid structure, with a rigid glass fiber reinforced resin mandrel in the center, and a silicone rubber shed and sheath on the outside. Under normal circumstances, this kind of rigid composite insulator is used as a suspension insulator, which can exert its greatest advantage—that is, bear tension. After long-term and large-scale applications, the use of rigid composite insulators as a suspension insulator has been proved to be successful and safe. [0003] When the composite insulator ...

Claims

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Application Information

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IPC IPC(8): H01B17/02H01B17/04H01B19/00H02G7/12
Inventor 宋福如陈原游传榜宋志强古胜利
Owner HEBEI SILICON VALLEY CHEM CO LTD
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