CN202210428U - Highly flame-retardant flat rubber cable capable of resisting water, corrosion, radiation and bending - Google Patents

Abstract

The utility model discloses a highly flame-retardant flat rubber cable capable of resisting water, corrosion, radiation and bending, wherein a cable conductor adopts a tinning anaerobic copper conductor; insulated wire cores are sequentially arranged outside the conductor and are provided with EPR (ethylene propylene rubber) insulated layers in an extruding way and polytetrafluoroethylene film strips in a wrapping way; the three parallel insulated wire cores are coated with talcum powder; and compound chloroprene rubber is extruded at the outermost layer of the cable so as to form a wrapping layer. The highly flame-retardant flat rubber cable capable of resisting water, corrosion, radiation and bending is particularly applicable to being used in water, the cable has the advantages of oil resistance, uranium resistance, bending resistance, radiation resistance and larger beveling radius as well as the characteristics of oil resistance, water tightness, corrosion resistance, radiation resistance and high flame-retardant performance.

Description

The anti-crooked high flame retardant rubber flat cable of water-fast corrosion-resistant radiation hardness

Technical field:

The utility model relates to the anti-crooked high flame retardant rubber flat cable of a kind of water-fast corrosion-resistant radiation hardness, belongs to the cable technology field.

Background technology:

As everyone knows, the General Purpose Rubber flat cable all is to adopt elastomeric material, because the elastomeric material coefficient of friction is bigger; When bending; Resistance is bigger between insulation and the sheath, and its its bending property when bending is general, the disconnected easily core of conductor; And not water-fast, not oil resistant, non-radiation hardness, fire resistance is poor, can not satisfy special occasions uses.For example: at waste water, greasy dirt, have in the waste water of radiativity uranium-bearing, in bending property is had relatively high expectations, fire resistance is had relatively high expectations the place; The General Purpose Rubber flat cable just can not satisfy instructions for use, and this just needs the anti-crooked high flame retardant rubber flat cable of water-fast corrosion-resistant radiation hardness.

Summary of the invention:

For overcoming the defective of prior art; The purpose of the utility model is to provide a kind of water-fast corrosion-resistant radiation hardness anti-crooked high flame retardant rubber flat cable; Be particularly useful in the water; Its oil resistant, anti-uranium, anti-bending, radiation hardness, bending radius is bigger, has oil resistant, waterproof, corrosion-resistant, radiation hardness, high flame retardant characteristic.

The utility model technical solution problem adopts following technical scheme:

The anti-crooked high flame retardant rubber flat cable of water-fast corrosion-resistant radiation hardness; Cable conductor adopts zinc-plated oxygen-free copper conductor; Outside said conductor, be extruded with ethylene propylene rubber insulated layer successively, be surrounded with polytetrafluoroethylene film band formation insulated wire cores; And being coated with talcum powder three insulated wire cores that laterally arrange, the outermost layer of cable is extruded with the neoprene mixed rubber and forms jacket layer.

Compared with present technology, the beneficial effect of the utility model is embodied in:

1, the utility model cable adopts anti-oxidant zinc-plated oxygen-free copper flexible conductor, and conductor adopts anti-oxidant zinc-plated oxygen-free copper conductor, because very little of the oxygen content of copper; Strengthen the non-oxidizability of copper, added the surface of copper and plated one deck inert metal tin, strengthened the corrosion resistance of conductor greatly; Because the inertia of tin is bigger than copper, tin has stoped the oxidation of copper in the surface protection of copper; Increase useful life, improve the ampacity of temperature resistant grade and cable, adopt tin coating also to help the welding of joint.And conductor adopts fine pith to restraint strand in the same way, has improved the resistance to bend(ing) ability and the flexibility of conductor.

2, insulation adopts water resistance good, and intensity is high, percentage elongation is big, and second third mixed rubber that permanent deformation is little, elasticity is high is planted cable that rubber processes thus and had that good bending property, electrical property are high, the characteristic of water-tolerant.And this second third mixed rubber is to adopt lead orthoplumbate as water-fast stabilizer; Immersion electric capacity stability and heat-resisting voltinism to improve insulation can; Adopt this kind rubber as insulation, it can be in water, in the anti-superheated water, medium-term and long-term its insulation property of using of steam do not reduce, do not crack in following 3 years even expose daylight yet; In the medium of ozone concentration 100 μ pm, crackle does not take place in 2400h.And ethylene-propylene rubber intensity is high, percentage elongation is big, and permanent deformation is little, and elasticity is high, has improved the bending resistance of insulation.Adding this second third mixed rubber is nonpolar speciality, and its chemical stability is good, and it and most chemicals do not react, and between the polar substances or immiscible or intermiscibility is minimum, like alcohol, ketone, acid (acetate, formic acid), highly basic, oxidant (H ₂O ₂, HClO), washing agent, phosphoric acid ester etc., this has improved the corrosion resistance of insulation greatly.

3, the wrapped polytetrafluoroethylene film in ethylene propylene rubber insulated core surface; Because polytetrafluoroethylene film has acid and alkali-resistance; Corrosion-resistant; Anti-various organic solvent, stable chemical performance, coefficient of friction extremely low, high lubricated not viscosity, electrical insulating property and anti-aging good characteristic have improved the acid and alkali-resistance of cable, the ability of corrosion-resistant, anti-various organic solvents greatly.And it is extremely low that polytetrafluoroethylene has a coefficient of friction, and the high characteristic of greasy property has improved the slipping property between wrapped teflon insulation core and the super-fine talc greatly, has improved the cable bendability.Adopt this kind structure, even cable also has no problem for crooked 180 °, and polytetrafluoroethylene film has excellent electric performance, can also increase the insulation property of cable.

4, be coated with the ultra micro talcum powder between polytetrafluoroethylene lapped insulation core and the sheath, because common Plastic-sheathed Cable insulation employing is rubber, what sheath adopted also is rubber; And no any lubricator between insulated wire cores and the sheath, coefficient of friction is big between it, and resistance is big between insulation and the sheath; It is when bending; Because can't slide relative between insulated wire cores and the sheath, add little many of the higher insulating material of the nonmetal relatively elasticity of percentage elongation of metallic copper conductor, and again can not slide relative (guaranteeing the electric property of insulated wire cores) between conductor and the insulation; Very easily cause the conductor thread core fracture, cause cable bad and scrap.Between polytetrafluoroethylene lapped insulation core and sheath, be coated with, can strengthen sliding between the big neoprene sheath of the insulated wire cores that is surrounded with polytetrafluoroethylene and coefficient of friction greatly, can improve the cable bending property greatly with talcum powder.

5, sheath adopts extraordinary oil resistant, radiation hardness, anti-uranium high flame retardant neoprene mixed rubber, and this extraordinary neoprene epoxy glue adopts lead oxide as vulcanizing agent, because lead is inert metal; Its radiation resistance is good, resistance to water is high, and good corrosion resistance, neoprene were exactly oil resistance rubber preferably originally; In the neoprene epoxy glue, add fourth again and gather glue; Improving the oil resistance of neoprene because fourth to gather glue be butyronitrile and polyvinyl chloride with 7: 3 mixture, and butyronitrile and polyvinyl chloride itself are exactly the extraordinary material of oil resistance; In the neoprene epoxy glue, add the fabulous fourth of oil resistance and gather glue, improved the oil resistance of neoprene more.Common neoprene epoxy glue adopts zinc oxide and magnesia as vulcanizing agent; Magnesia is a kind of material of the very easily moisture absorption; The long-term generation ionic species that very easily absorbs water in the water that immerses; Can reduce neoprene jacket insulation performance, intensity and resistance to water, adopt lead orthoplumbate, can improve the anti-hydroexpansivity of cable greatly as vulcanizing agent.Neoprene belongs to from reinforcement property rubber, and its physical and mechanical property is very good, adds in this neoprene epoxy glue and does not add liquid plasticizer, and its intensity and tear resistance are better, and the rubber of high strength and high tear resistance can be given higher pull resistance of cable and resistance to wear.And contain the chlorine element in the neoprene; In this glue, add efficient compound HZR-2 fire retardant; Can make the oxygen index of neoprene epoxy glue bring up to 42%, high oxygen index can further improve the anti-flammability of cable, and this cable is when doing A level fire retardancy test; Its charing highly has only 0.5 meter, is far superior to the requirement that national Specification is 2.5 meters charing height to the maximum.So the cable processed of epoxy glue has the characteristic of oil resistant, radiation hardness, wear-resisting, high flame retardant thus, adding cable is flat, has saved installing space when mounted greatly.

Description of drawings:

Fig. 1 is the structural representation of the utility model cable section.

Label among the figure: 1 conductor, 2 insulating barriers, 3 polytetrafluoroethylene film bands, 4 talcum powder, 5 jacket layer.

Below pass through embodiment, and combine accompanying drawing that the utility model is described further.

Embodiment:

Embodiment: referring to Fig. 1; The anti-crooked high flame retardant rubber flat cable of the water-fast corrosion-resistant radiation hardness of present embodiment; Its cable conductor 1 adopts zinc-plated oxygen-free copper conductor; Outside conductor 1, be extruded with ethylene propylene rubber insulated layer 2 successively, be surrounded with polytetrafluoroethylene film band 3 formation insulated wire cores, and be coated with talcum powder 4 three insulated wire cores that laterally arrange, the outermost layer of cable is extruded with the neoprene mixed rubber and forms jacket layer 5.

In the practical implementation; Be twisted into soft whipping wire by the anti-oxidant zinc-plated oxygen-free copper conductor of annealing with less pitch bundle; To improve the bendability and the flexibility of conductor; Extrude high-strength water-resistance second third electro-insulating rubber and vulcanization crosslinking in zinc-plated oxygen-free copper flexible conductor outside; Wrapped corrosion-resistant, water-fast, polytetrafluoroethylene film band that electrical insulation capability is excellent outside the ethylene-propylene rubber behind vulcanization crosslinking when extruding extraordinary oil resistant, radiation hardness, wear-resisting, high flame retardant neoprene mixed rubber sheath, is coated with super-fine talc at the polytetrafluoroethylene film belt surface; Utilize the lubrification of super-fine talc and polytetrafluoroethylene film; Be surrounded with the insulated wire cores of polytetrafluoroethylene film band and the slide relative property between the neoprene mixed rubber sheath with raising, strengthening the cable bending property, the extraordinary oil resistant that extrudes, radiation hardness, wear-resisting, oil resistant, radiation hardness, wear-resisting and high flame resistance that high flame retardant neoprene mixed rubber sheath can improve cable.

Claims (1)

1. the anti-crooked high flame retardant rubber flat cable of water-fast corrosion-resistant radiation hardness; It is characterized in that; Cable conductor (1) adopts zinc-plated oxygen-free copper conductor; Outside said conductor (1), be extruded with ethylene propylene rubber insulated layer (2) successively, be surrounded with polytetrafluoroethylene film band (3) formation insulated wire cores, and be coated with talcum powder (4) three insulated wire cores that laterally arrange, the outermost layer of cable is extruded with the neoprene mixed rubber and forms jacket layer (5).

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