CN204732185U

CN204732185U - A kind of aramid fiber lapped wire

Info

Publication number: CN204732185U
Application number: CN201520452221.2U
Authority: CN
Inventors: 张强; 李冬福; 林志峰; 龚力
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd; Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; Shenzhen Woer Special Cable Co Ltd; Jintan Woer New Material Co Ltd
Current assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2015-10-28
Anticipated expiration: 2025-06-29

Abstract

The utility model discloses a kind of aramid fiber lapped wire, comprises conductor, and the outer surface of conductor is coated with aramid fiber thin dielectric film, and aramid fiber thin dielectric film is outward crosslinked ethene-tetrafluoroethylene copolymer insulation layer.The utility model aramid fiber lapped wire has excellent mechanical performance, fire resistance, electrical insulation capability, heat resistance and resistance to chemical corrosion, can be used for the field harsher to the performance requirement of electric wire.

Description

A kind of aramid fiber lapped wire

Technical field

The utility model relates to a kind of electric wire.

Background technology

At present, the application of electric wire is constantly expanded, more and more harsher to the performance requirement of electric wire, needs electric wire to have the performances such as excellent machinery, electric insulation, fire-retardant, heat-resisting, resistance to chemical attack.

But, still there is no a kind of insulation lapped wire, can solve the problems of the technologies described above well.

Utility model content

Utility model object is, for the performance of current lapped wire technical problem excellent not, to propose a kind of high performance aramid fiber lapped wire.

For reaching above-mentioned purpose, the utility model provides a kind of aramid fiber lapped wire, and the outer surface of described conductor is surrounded with aramid fiber thin dielectric film, and described aramid fiber thin dielectric film is outward crosslinked ethene-tetrafluoroethylene copolymer insulation layer.

Preferably, described conductor is the conductor of single or stranded.

Preferably, described conductor is have coating or the conductor without coating.

Preferably, described conductor is copper, aluminium conductor.

Preferably, described insulation paint film is meta-aramid paint film or p-aramid fiber paint film.

The beneficial effects of the utility model:

1. good mechanical performance: fracture strength is high, percentage elongation is comparatively large, soft handle, and wear-resisting tear-proof.

2. Heat stability is good: can at high temperature Long-Time Service and not aging, its electric property and mechanical performance can keep for a long time, and excellent dimensional stability; Short time be exposed in 300 DEG C of high temperature also can not shrink, brittle, softening or melting.

3. outstanding chemical stability: chemical constitution exceptional stability, can the burn into resistant to hydrolysis effect of the dense inorganic acid of resistance to most height and other chemicals and steam corrosion.

4. splendid electrical insulating property: dielectric constant is very low, intrinsic dielectric strength makes it under high temperature, low temperature, super-humid conditions, all can keep excellent electrical insulating property, breakdown voltage resistant high.

5. excellent anti-flammability.Can not burn in atmosphere, not combustion-supporting yet, there is self-extinguishment.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model aramid fiber lapped wire.

Number in the figure: 1 conductor, 2 aramid fiber paint film insulating barrier 3. crosslinked ethene-tetrafluoroethylene copolymer insulation layers 3.

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.

Refer to Fig. 1, the utility model aramid fiber lapped wire comprises conductor 1, and the outer surface of conductor 1 is coated with aramid fiber thin dielectric film 2, and described aramid fiber thin dielectric film 2 is outer is crosslinked ethene-tetrafluoroethylene copolymer insulation layer 3.

Preferably, described conductor is the conductor of single or stranded.

Preferably, described conductor is copper, aluminium conductor.

Preferably, described insulation paint film 2 is meta-aramid paint film or p-aramid fiber paint film.

The utility model aramid fiber lapped wire, when producing, uses accurate stranding machine that 17 diameter 0.16mm tinned wirds are twisted into a branch of multiply tin-coated copper twisted wire, it can be used as conductor 1.

Meta-aramid is dissolved in LiCl/DMAc solvent, solution temperature is 90 DEG C, the mass concentration of solute is 12wt%, after dissolving completely, solution is transferred in mould, after solvent evaporation completely, obtain aramid fiber film, then with high-speed wrapping machine, aramid fiber Transposed wind is formed insulating barrier 2 on conductor 1, select the direction identical with conductor strand direction to carry out wrapped, wrapping angle is 45 °, the wrapped overlap having 30%-50% between layers of aramid fiber film.

On insulating barrier 2, cross-linked ethylene-tetrafluoroethene insulating barrier is extruded with high temperature extrusion machine, cross tank cooling aftershaping and form cross-linked ethylene-tetrafluoroethene insulating barrier 3, extrusion die adopts flat-die, and extruding processing temperature is 310 DEG C, extruding insulation thickness is 0.8mm, and production linear speed is 120m/min.

The utility model has excellent mechanical performance, fire resistance, electrical insulation capability, heat resistance and resistance to chemical corrosion.The aramid fiber lapped wire of the present embodiment is applicable to the field harsher to the performance requirement of electric wire.

In sum, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.

Claims

1. an aramid fiber lapped wire, comprises conductor, it is characterized in that: the outer surface of described conductor is surrounded with aramid fiber thin dielectric film, and described aramid fiber thin dielectric film is outward crosslinked ethene-tetrafluoroethylene copolymer insulation layer.

2. aramid fiber lapped wire according to claim 1, is characterized in that: described conductor is the conductor of single or stranded.

3. aramid fiber lapped wire according to claim 1, is characterized in that: described conductor is have coating or the conductor without coating.

4. aramid fiber lapped wire according to claim 1, is characterized in that: described conductor is copper, aluminium conductor.

5. aramid fiber lapped wire according to claim 1, is characterized in that: described insulation paint film is meta-aramid paint film or p-aramid fiber paint film.