CN103985457A

CN103985457A - Shield cable

Info

Publication number: CN103985457A
Application number: CN201410168778.3A
Authority: CN
Inventors: 张元船; 华齐东; 杨茂明; 于杰; 陆秀国
Original assignee: Anhui Huining Electric and Measuring Appliance Co Ltd
Current assignee: Anhui Huining Electric and Measuring Appliance Co Ltd
Priority date: 2014-04-24
Filing date: 2014-04-24
Publication date: 2014-08-13

Abstract

The invention discloses a shield cable which comprises a cable core. The cable core comprises two V-shaped silica gel frames which are arranged oppositely. Wire cores are placed in a left cavity and a right cavity respectively, wherein the left cavity and the right cavity are formed by the inner sides and the outer sides of the two V-shaped silica gel frames. Each wire core comprises a conductor and each conductor is sequentially coated with a crosslinked polyethylene insulating layer, a zinc-coated wire braided shield layer and a glass silk fireproof layer. The cable core is sequentially coated with a cellosilk braided rope winding layer, a waterproof glue packing layer, an aluminum tape interlocking armor layer and an outer sheath. Due to the fact that each conductor is sequentially coated with the crosslinked polyethylene insulating layer, the zinc-coated wire braided shield layer and the glass silk fireproof layer and the cable core is sequentially coated with the cellosilk braided rope winding layer, the waterproof glue packing layer and the aluminum tape interlocking armor layer, the shield cable has the advantages of being capable of saving shield space, good in flexibility, capable of saving generation cost and high in manufacturing efficiency.

Description

A kind of shielded type cable

Technical field

The present invention relates to cable technology field, relate in particular to a kind of shielded type cable.

Background technology

Shielded type cable is after cable cabling, to add upper shielding layer, utilizes screen to electromagnetic reflection, absorption and skin effect, realizes and prevents that external electromagnetic interference from entering cable, also stops internal signal to radiate the work of disturbing miscellaneous equipment simultaneously.Existing shielded type cable can't meet the demand of use, needs to improve.Electric wire and cable jacket material, except having good physical and mechanical properties and electrical insulation capability, also needs to have the performances such as good oil resistance, thermal endurance, corrosion resistance, and traditional cable jacket material more and more cannot meet severe operational environment.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, and a kind of shielded type cable is provided.Cable jacket material of the present invention, is keeping on the basis of its good physical and mechanical properties and electrical insulation capability, improves its oil resistance, thermal endurance and the performance such as corrosion-resistant.

The present invention is achieved by the following technical solutions:

A kind of shielded type cable, include cable core, described cable core includes the V font silica gel skeleton of two opposing placements, in the left and right cavity of the inner side of two V font silica gel skeletons and the lateral surface of two V font silica gel skeletons formation, be placed with respectively core, described core includes conductor, be coated with successively crosslinked polyetylene insulated layer, zinc-coated wire woven shield and glass fiber fireprotection layer in conductor outside, be coated with successively filament kernmantle winding layer, marine glue packed layer, aluminium strip lock armo layer and oversheath in cable core outside.

Described jacket material is made up of the raw material of following weight portion: methyl ethylene phenyl siloxane rubber 56-68, butadiene-vinylpyridine rubber 32-44, acrylate rubber 14-26, coumarone indene resin 10-15, magnesium hydroxide 12-24, molybdenum trioxide 8-16, TDE 5-10, Tissuemat E 3-6, calcium oxide 2-3, zinc stearate 1-2, N, N'-meta-phenylene bismaleimide 2-3, triallyl cyanurate 1.5-2.5, glass microballoon 5-10, volcanic ash 4-8, modified mineral filler 15-20, accelerant NOBS 1-2, promoter ZDC1-2, age resistor TPPD2-3,

The preparation method of described modification complex mineral filler is as follows: (1) in mass ratio 4-8:3-5:2-3:1 takes barite, olivine, attapulgite, illite and mixes, pulverize, cross 50-100 mesh sieve, then at 820-880 DEG C of temperature lower calcination 20-30min, continue to be warming up to 1050-1150 DEG C, calcining 2-3h, shrend, dries; (2) get and be equivalent to 4 of absolute ethyl alcohol doubly of complex mineral filler weight 2-3,40-50%, the glyoxal ethyline of 4'-MDA epoxy resin, 2-4% mixes with the compounded mix that step (2) is processed, heating water bath is to 120-140 DEG C, 500-1000rpm high-speed stirred 0.5-1h, filter, dry; (3) get and after complex mineral filler that the calcium stearate of atoleine, the 1-3% of brucite powder, the 3-5% of vinyl three ('beta '-methoxy ethyoxyl) silane, the 5-10% of tetrafluoraoethylene-hexafluoropropylene copolymer, the 2-4% of the butadiene-styrene rubber, the 25-35% that are equivalent to complex mineral filler weight 30-40% processes with step (2) mixes, together drop into double screw extruder and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of jacket material of the present invention, comprise the following steps: take in butadiene-vinylpyridine rubber, acrylate rubber, coumarone indene resin, Tissuemat E, calcium oxide, zinc stearate, the mill of volcanic ash input, be mixing 10-15min at 55-65 DEG C of temperature in roller temperature, then dancer rools temperature is to 70-80 DEG C, add the mixing 5-10min of all the other raw materials, park 10-15h, discharging.

Advantage of the present invention is: conductor of the present invention outside is coated with crosslinked polyetylene insulated layer, zinc-coated wire woven shield and glass fiber fireprotection layer successively, be coated with successively filament kernmantle winding layer, marine glue packed layer, aluminium strip lock armo layer in cable core outside, have the shielding space of saving, flexible fine, save manufacturing cost and make the feature that efficiency is high.Oversheath material of the present invention has excellent oil resistance, thermal endurance, corrosion resistance, and has good electric property, mechanical property and fire resistance, safe and reliable, durable in use.

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

Embodiment

As shown in Figure 1, a kind of shielded type cable, include cable core, described cable core includes the V font silica gel skeleton 1 of two opposing placements, in the left and right cavity of the inner side of two V font silica gel skeletons 1 and the lateral surface of two V font silica gel skeletons 1 formation, be placed with respectively core, described core includes conductor 2, be coated with successively crosslinked polyetylene insulated layer 3, zinc-coated wire woven shield 4 and glass fiber fireprotection layer 5 in conductor 2 outsides, be coated with successively filament kernmantle winding layer 6, marine glue packed layer 7, aluminium strip lock armo layer 8 and oversheath 9 in cable core outside.

Oversheath 9 materials are made up of the raw material of following weight portion: methyl ethylene phenyl siloxane rubber 62, butadiene-vinylpyridine rubber 38, acrylate rubber 24, coumarone indene resin 12, magnesium hydroxide 18, molybdenum trioxide 10, TDE 8, Tissuemat E 4, calcium oxide 2, zinc stearate 1.5, N, N'-meta-phenylene bismaleimide 2.5, triallyl cyanurate 2, glass microballoon 8, volcanic ash 6, modified mineral filler 16, accelerant NOBS 1.5, promoter ZDC1, age resistor TPPD2.5;

The preparation method of described modification complex mineral filler is as follows: (1) in mass ratio 7:5:3:1 takes barite, olivine, attapulgite, illite and mixes, pulverize, cross 60 mesh sieves, then at 850 DEG C of temperature lower calcination 25min, continue to be warming up to 1080 DEG C, calcining 3h, shrend, dries; (2) get be equivalent to 2.5 times of complex mineral filler weight absolute ethyl alcohol, 42% 4,4'-MDA epoxy resin, 3% glyoxal ethyline mix with the compounded mix that step (2) is processed, heating water bath to 130 DEG C, 800rpm high-speed stirred 0.5h, filter, dry; (3) get be equivalent to butadiene-styrene rubber, 30% tetrafluoraoethylene-hexafluoropropylene copolymer, 3% vinyl three ('beta '-methoxy ethyoxyl) silane, 8% brucite powder, 4% the atoleine of complex mineral filler weight 35%, complex mineral filler that 2% calcium stearate is processed with step (2) together drops into double screw extruder after mixing and carries out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of oversheath 9 materials, comprise the following steps: take in butadiene-vinylpyridine rubber, acrylate rubber, coumarone indene resin, Tissuemat E, calcium oxide, zinc stearate, the mill of volcanic ash input, be mixing 10-15min at 55-65 DEG C of temperature in roller temperature, then dancer rools temperature is to 70-80 DEG C, add the mixing 5-10min of all the other raw materials, park 10-15h, discharging.

After testing, the results of property that makes oversheath 9 is as following table:

Claims

1. a shielded type cable, it is characterized in that: include cable core, described cable core includes the V font silica gel skeleton of two opposing placements, in the left and right cavity of the inner side of two V font silica gel skeletons and the lateral surface of two V font silica gel skeletons formation, be placed with respectively core, described core includes conductor, be coated with successively crosslinked polyetylene insulated layer, zinc-coated wire woven shield and glass fiber fireprotection layer in conductor outside, be coated with successively filament kernmantle winding layer, marine glue packed layer, aluminium strip lock armo layer and oversheath in cable core outside.

2. shielded type cable according to claim 1, it is characterized in that: described jacket material is made up of the raw material of following weight portion: methyl ethylene phenyl siloxane rubber 56-68, butadiene-vinylpyridine rubber 32-44, acrylate rubber 14-26, coumarone indene resin 10-15, magnesium hydroxide 12-24, molybdenum trioxide 8-16, TDE 5-10, Tissuemat E 3-6, calcium oxide 2-3, zinc stearate 1-2, N, N'-meta-phenylene bismaleimide 2-3, triallyl cyanurate 1.5-2.5, glass microballoon 5-10, volcanic ash 4-8, modified mineral filler 15-20, accelerant NOBS 1-2, promoter ZDC 1-2, age resistor TPPD 2-3,

3. shielded type cable according to claim 1, it is characterized in that: the preparation method of described jacket material, comprise the following steps: take in butadiene-vinylpyridine rubber, acrylate rubber, coumarone indene resin, Tissuemat E, calcium oxide, zinc stearate, the mill of volcanic ash input, be mixing 10-15min at 55-65 DEG C of temperature in roller temperature, then dancer rools temperature is to 70-80 DEG C, add the mixing 5-10min of all the other raw materials, park 10-15h, discharging.