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Ultrahigh-elastic torsion-resistant walkie-talkie spring wire for firefighters, and production method thereof

A production method and torsion-resistant technology, applied in the direction of cables, insulated conductors, and extendable conductor cables, etc., can solve the problems of twisting and deformation of data transmission core wires, insufficient rebound rate, fracture, etc., to eliminate rebound stress, maintain The effect of continuous and stable signal and controllable production process

Active Publication Date: 2020-09-11
ZHEJIANG WANMA GRP SPECIAL ELECTRONCABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the spring wire for fire protection in the market has insufficient rebound rate after repeated stretching and rebound tests, and after a long period of bending and twisting, the data transmission core wire inside the structure is prone to severe distortion and deformation, resulting in conductor breakage

Method used

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  • Ultrahigh-elastic torsion-resistant walkie-talkie spring wire for firefighters, and production method thereof
  • Ultrahigh-elastic torsion-resistant walkie-talkie spring wire for firefighters, and production method thereof
  • Ultrahigh-elastic torsion-resistant walkie-talkie spring wire for firefighters, and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Step a:

[0043] Inner conductor of inner core wire 2 and outer core wire 6: use 6 copper-tin alloy wires as the first layer, 200D Kevlar wire as the second layer, and 18*2 copper-tin alloy wires as the third layer. In addition, fluorine plastic is used as the insulating layer to extrude, and the whole body is extruded after online preheating in a 250°C oven.

[0044] Step b:

[0045] The inner core wires 2 are individually twisted and shielded: the four inner core wires 2 are directly untwisted and bundled, and then twisted around the inner Kevlar filler wire 1 to form a cable;

[0046] stepc:

[0047] Fabrication of the tape 4 and the shielding layer 5: wrap the upper tape 4 around the four inner core wires 2, wrap the upper shielding layer 5 on the outside of the tape 4, and bury the ground between the tape 4 and the shielding layer 5 line 3;

[0048] Step d:

[0049]Integral twisting and shielding: seven outer core wires 6 and multiple outer Kevlar filler wires...

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Abstract

The invention discloses an ultrahigh-elastic torsion-resistant walkie-talkie spring wire for firefighters, and a production method thereof. According to the ultrahigh-elastic torsion-resistant walkie-talkie spring wire, an inner Kevlar wire filling wire is positioned in the center; four inner core wires are arranged around the inner Kevlar wire filling wire and are twisted into a cable; the periphery of the four inner core wires is coated with a wrapping tape; the wrapping tape is coated with a shielding layer; a grounding wire is embedded between the wrapping tape and the shielding layer; andseven outer core wires and multiple outer Kevlar wire filling wires are arranged around the shielding layer and twisted into a cable, and the periphery of the outer core wires and the periphery of the outer Kevlar wire filling wires are coated with an outer sheath. According to the invention, the ultrahigh-elastic torsion-resistant walkie-talkie spring wire is used for signal transmission of a high-latitude cold zone fireman walkie-talkie communication cable or under the requirements of high and cold and flame environments, maintains the ultrahigh-elasticity torsion-resistant performance andthe continuous stability of signals, and has good torsion resistance.

Description

technical field [0001] The invention relates to a spring wire and a production method thereof, in particular to an ultra-high elastic and torsion-resistant walkie-talkie spring wire for firefighters and a production method thereof. Background technique [0002] At present, the spring wires for fire protection in the market have insufficient rebound rate after repeated stretching and rebound tests, and after a long period of bending and torsion, the data transmission core wire inside the structure is prone to severe distortion and deformation, resulting in conductor breakage. [0003] Due to the above-mentioned defects, it is necessary to improve the above-mentioned existing spring wire production method for fire protection, in order to meet the market development needs. Contents of the invention [0004] In order to solve the problems in the background technology, the present invention provides an ultra-high elasticity and torsion-resistant fireman's walkie-talkie spring w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/06H01B7/02H01B7/17H01B7/18H01B7/29H01B7/295H01B11/06H01B13/02H01B13/04H01B13/22H01B13/24
CPCH01B7/02H01B7/065H01B7/17H01B7/1825H01B7/29H01B7/295H01B11/06H01B13/02H01B13/04H01B13/228H01B13/24
Inventor 石磊邵志康卢柱顾机勇朱杭忠应志鹏
Owner ZHEJIANG WANMA GRP SPECIAL ELECTRONCABLE
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