CN105321612A - Doubled-shielded signal line resistant to wear and bending - Google Patents
Doubled-shielded signal line resistant to wear and bending Download PDFInfo
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- CN105321612A CN105321612A CN201510707617.1A CN201510707617A CN105321612A CN 105321612 A CN105321612 A CN 105321612A CN 201510707617 A CN201510707617 A CN 201510707617A CN 105321612 A CN105321612 A CN 105321612A
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Abstract
The invention discloses a double-shielded signal line resistant to wear and bending. The double-shielded signal line comprises a sheath layer, a braided shielding layer, a ground line, hot-melting aluminum-foil wrapping layers, power lines and a signal harness, wherein the ground line is arranged in an independent chamber formed by the braided shielding layer and the hot-melting aluminum-foil wrapping layers, the hot-melting aluminum-foil wrapping layers are arranged at the inner side of the braided shielding layer, the main raw materials of the sheath layer comprises based on weight: 35-45% of polyvinyl chloride powder, 10-15% of filler, 1.0-2.0% of stabilizer, 0.05-0.13% of lubricant, 12-15% of polystyrene rubber, 1.2-2.7% of fire retardant, 0.5-1.0% of toner and the balance of plasticizer, and the polymerization degree of polyvinyl chloride is 1,000 to 1,300. The signal line has the advantages of simplicity in production process, high wear resistance, bending resistance and swinging performance, low signal attenuation, fast signal transmission and long service lifetime, and moreover, an insulation layer and the sheath layer have favorable stretching and tensile performance.
Description
Technical field
The present invention relates to a kind of signal transmission cable, particularly the wear-resisting resist bending holding wire of a kind of double shield.
Background technology
Along with the development of science and technology, mobile terminals not only can provide traditional voice call and Short Message Service for user, and the various special service such as more and more such as video calling, moving picture service, DPS navigation, mobile bankings also use by user.But along with Mobile Communication Service is towards the multimedia service future development of such as moving picture service, the signal quality of portable terminal, portable terminal inside and outside wire rod useful life, performance etc. have all become mobile terminals user and have considered the key factor with choice for use.And the inside and outside wire rod that at present portable terminal uses generally all adopts electric wire traditional handicraft and common raw materials to make, this wire rod is in resistance to wear and bendingly wave requirement performance reaching 300,000 times and just arrive the limit.The customer requirement of more than 500000 times and market just cannot meet at all.Other aspects in addition, as intelligent robot development field, resistance to wave requirement more outstanding for the wear-resisting resist bending of extra pair of establishing in the fields such as elevator Medical Devices, especially robotic manipulator, Medical Devices scientific research line, to super abrasive surpass resist bending holding wire especially in the urgent need to.More there is special dimension not only to want wear-resisting but also require that even more than 1,000,000 times resistance to waves requirement.
Summary of the invention
For solving the problem, the invention discloses the wear-resisting resist bending holding wire of a kind of double shield, structure is simple, and convenient for production, with low cost, the resistance to number of times that waves is high, and signal transmission performance is excellent, not easily aged deterioration, long service life.
The wear-resisting resist bending holding wire of double shield disclosed by the invention, comprise restrictive coating, woven shield, ground wire, hot melt aluminium foil integument, power line, signal wire harness, gasket for packing, ground wire is arranged in the separate chambers that formed by woven shield and hot melt aluminium foil integument (thus can ground wire clutter form good shield effectiveness), and wherein hot melt aluminium foil integument is arranged on inside woven shield;
The primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 35-45%; Filler 10-15%; Stabilizer 1.0-2.0%; Lubricant 0.05-0.13%; Polystyrene rubber 12-15%; Fire retardant 1.2-2.7%; Toner 0.5-1.0%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1000-1300.Raw material through stirring mixing, extruding pelletization, last and wire rod cable core makes restrictive coating by wire rod extruder.After granulation be combined with cable core squeeze give as security wire rod finished product time, extruder screw and extruder die head temperature range are between 145 DEG C-165 DEG C.The use of lubricant to reduce between polyvinyl chloride powder friction effect and plastics to the adhesiveness of process equipment metal surface, and the last restrictive coating smooth in appearance that the use in conjunction with plasticizer will make is soft and graceful.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and signal wire harness comprises holding wire and is wrapped in the hot melt aluminium foil integument outside holding wire.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and holding wire intrafascicular hot melt aluminium foil integument is to the independence parcel of single holding wire or for wrap up the entirety of many holding wires to the parcel of holding wire.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and filler is calcium carbonate powder and kaolin powder (2-4): the mixture of 1 mass ratio.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and in filler, the particle diameter of calcium carbonate powder is 80-100 micron, and the particle diameter of kaolin powder is 20-40 micron.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and holding wire comprises insulating barrier, hollow conductor and interstitial wire, and interstitial wire is filled in hollow conductor, and described insulating barrier is coated on outside hollow conductor, and interstitial wire is the nylon yarn of copper sheet parcel.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and the external diameter of interstitial wire is less than or equal to 0.10mm.
The one of the wear-resisting resist bending holding wire of double shield disclosed by the invention is improved, and the percentage elongation of hollow conductor is 21-35%, and the percentage elongation of interstitial wire is 40-50%.
A kind of scheme of the present invention program is, by in the situation lower conductor not affecting resistivity respectively by adding interstitial wire (copper sheet nylon yarn heart yearn), signal wire harness is made at parcel hot melt aluminium foil layer after reasonably using lay to be stranded external diameter 10-12 multiplying power pair twist, not only greatly strengthen the flexural property of transmission line, and effectively reduce the decay of signal in transmitting procedure.Final signal wire harness and power line parallel collection in one, peripheral hardware hot melt aluminium foil integument, ground wire, woven shield (braiding of monofilament copper), restrictive coating.Thus make wire rod to wave for more than 800,000 times at 180 degree of angles and not rupture.Now commercially many signal shielding connecting lines require to carry out waving test with this, and 180 degree of angles wave will rupture less than 200,000 times.
Secondly, outer shielding layer is made up of hot melt aluminium foil layer, ground wire and monofilament copper wire woven layer.Double shield wear-resisting resist bending holding wire when producing except as except resist bending strip line uses better percentage elongation copper wire stranded conductor, during wire rod set, an additional nylon yarn (gasket for packing) is filled and suitably reduces regular sets lay.Woven shield band with braiding time except the copper wire that braided wires and ground wire adopt percentage elongation excellent, band adopts two-sided hot melt aluminium foil layer especially, this aluminium foil not only shield effectiveness well outer ductility is more excellent.Above feature has the elastomer plastic jacket layer of the good anti-performance that rises that stretches combining, thus achieves the performance requirement of the wear-resisting resist bending holding wire of double shield.Eventually through crooked experiment test, under 180 degree of harsh bending conditions, wave more than 800,000 times.The instructions for use keeping premium properties in the particular surroundings of subzero-20 DEG C+40 DEG C can be met simultaneously.
Production technology of the present invention is simple and easy to control, production efficiency is high, product have resistance toly to wave, anti-excellent, the antinoise signal interference of rising of resist bending, elongation, health decay, long service life, the advantage such as safety and environmental protection, greatly improve transmission quality and the practicality of signal.
Accompanying drawing explanation
The structural representation of a kind of embodiment of Fig. 1, double shield disclosed by the invention wear-resisting resist bending holding wire.
Reference numerals list:
01: interstitial wire; 02: hollow conductor; 03: insulating barrier; 04-1: hot melt aluminium foil integument;
04-2: hot melt aluminium foil integument; 05: ground wire; 06: gasket for packing; 07: power line; 08: woven shield;
09: restrictive coating; 10: signal wire harness.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.
The wear-resisting resist bending holding wire of a kind of double shield disclosed by the invention, comprises restrictive coating 09, woven shield 08, ground wire 05, hot melt aluminium foil integument 04-2, power line 07, signal wire harness 10, gasket for packing 06.The primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 35-45%; Filler 10-15%; Stabilizer 1.0-2.0%; Lubricant 0.05-0.13%; Polystyrene rubber 12-15%; Fire retardant 1.2-2.7%; Toner 0.5-1.0%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1000-1300, wherein the use of lubrication prescription to reduce between polyvinyl chloride powder friction effect and plastics to the adhesiveness of process equipment metal surface, the last restrictive coating smooth in appearance that the use in conjunction with plasticizer will make, soft and graceful.
Preferred filler, the plastic cement making to make protective cover material in conjunction with polystyrene rubber wear-resisting with wave the percentage point that flexural property enhances at least 20% greatly.In filler, the recipe ratio of calcium carbonate powder and kaolin powder 3:1 is 30 microns in conjunction with the particle diameter that the particle diameter of calcium carbonate powder is 80-100 micron kaolin powder.Golden ratio is achieved in Integral shield sleeve micelle formula.Largely enhance the final performance advantage of particles.
Special conductor structure, be made up with monofilament copper cash is stranded of interstitial wire 01, time stranded, copper sheet interstitial wire is wrapped in centre by monofilament copper wire layer and makes 02 conductor.(copper sheet interstitial wire wraps up nylon yarn by percentage elongation at the copper sheet of 40-50% and forms the copper sheet interstitial wire that external diameter is no more than 0.10mm) signal wire harness is squeezed in outside conductor by high density polyethylene (HDPE) makes heart yearn, described both heart yearns to be combined in the multiplying power of the 10-12 of stranded external diameter as lay is stranded and wrap up aluminium foil, make 10 signal wire harness.
Rational practical solution, signal wire harness and the power line of at least two additional parcel aluminium foil formations of heart yearn are set up in parallel.Hot melt aluminium foil integument 04-2 is finally set, ground wire 05, screen 08, restrictive coating 09 make wire rod finished goods.
In the present invention program, by in the situation lower conductor not affecting resistivity respectively by adding copper sheet interstitial wire 01, signal wire harness is made at parcel hot melt aluminium foil integument 04-1 after reasonably using lay to be stranded external diameter 10-12 multiplying power pair twist, not only greatly strengthen the flexural property of transmission line, and effectively reduce the decay of signal in transmitting procedure.Final signal wire harness and power line parallel collection in one, peripheral hardware hot melt aluminium foil integument 04-2, ground wire 05, monofilament copper woven shield 08, restrictive coating 09.Thus make wire rod to wave for more than 800,000 times at 180 degree of angles and not rupture.Now commercially many signal shielding connecting lines require to carry out waving test with this, and 180 degree of angles wave will rupture less than 200,000 times.
Next outer shielding layer be arranged on inside restrictive coating is made up of hot melt aluminium foil integument 04-2 ground wire 05 and monofilament copper wire woven layer (woven shield 08).Double shield wear-resisting resist bending holding wire when producing except as except resist bending strip line uses better percentage elongation copper wire stranded conductor, during wire rod set, an additional nylon yarn (gasket for packing 06) is filled and suitably reduces regular sets lay.Woven shield band with braiding time except the copper wire that braided wires and ground wire 05 adopt percentage elongation excellent, band adopts two-sided hot melt aluminium foil layer especially, this aluminium foil not only shield effectiveness well outer ductility is more excellent.Above feature has the elastomer plastic jacket layer of the good anti-performance that rises that stretches combining, thus achieves the performance requirement of the wear-resisting resist bending holding wire of double shield.Eventually through crooked experiment test, under 180 degree of harsh bending conditions, wave more than 800,000 times.The instructions for use keeping premium properties in the particular surroundings of subzero-20 DEG C+40 DEG C can be met simultaneously.
Production technology of the present invention is simple and easy to control, production efficiency is high, product have resistance toly to wave, anti-excellent, the antinoise signal interference of rising of resist bending, elongation, health decay, long service life, the advantage such as safety and environmental protection, greatly improve transmission quality and the practicality of signal.
The constructive embodiment 1 of the wear-resisting resist bending holding wire of double shield
In the present embodiment, the wear-resisting resist bending holding wire of double shield, comprise restrictive coating 09, woven shield 08, ground wire 05, hot melt aluminium foil integument, power line 07, signal wire harness 10, gasket for packing 06, ground wire is arranged in the separate chambers that formed by woven shield and hot melt aluminium foil integument (forming outer shielding layer thus), and wherein hot melt aluminium foil integument is arranged on inside woven shield.
The constructive embodiment 2 of the wear-resisting resist bending holding wire of double shield
In the present embodiment, the wear-resisting resist bending holding wire of double shield, comprise restrictive coating, woven shield, ground wire, hot melt aluminium foil integument, power line, signal wire harness, gasket for packing, ground wire is arranged in the separate chambers that formed by woven shield and hot melt aluminium foil integument, wherein hot melt aluminium foil integument is arranged on inside woven shield, signal wire harness comprises holding wire, and (holding wire can be one, two, three or to follow more, when for when two, it is as shown in Figure 1, holding wire is intrafascicular at holding wire can be stranded form or side by side form or other form) and (hot melt aluminium foil integument can be independent parcel to single holding wire to the parcel of holding wire to be wrapped in hot melt aluminium foil integument outside holding wire, also can be that the entirety of the holding wire of many stranded forms is wrapped up, can also be the independent parcel of part to single holding wire, another part is wrap up the entirety of the holding wire of many stranded forms, be wherein that the entirety of the holding wire of two stranded forms is wrapped up in Fig. 1).
Distinguish with the constructive embodiment 1 of the wear-resisting resist bending holding wire of double shield and constructive embodiment 2, holding wire comprises insulating barrier 03, hollow conductor 02 and interstitial wire 01, interstitial wire is filled in hollow conductor, and insulating barrier is coated on outside hollow conductor, and interstitial wire is the nylon yarn of copper sheet parcel.
Distinguish with the constructive embodiment of the wear-resisting resist bending holding wire of above-mentioned double shield, other arbitrary value that the external diameter of interstitial wire is 0.10mm, 0.08mm, 0.07mm, 0.05mm, 0.03mm, 0.04mm and is less than or equal within the scope of 0.10mm.
Distinguish with the constructive embodiment of the wear-resisting resist bending holding wire of above-mentioned double shield, the percentage elongation of hollow conductor is 21%, the percentage elongation of interstitial wire is 40%.The percentage elongation of hollow conductor can also be 22%, 24%, 27%, 28%, 30%, 33%, 34%, 35% and 21-35% within the scope of other arbitrary value; The percentage elongation of interstitial wire can also be 41%, 43%, 44%, 46%, 48%, 49%, 50% and 40-50% within the scope of other arbitrary value.
The embodiment 1 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 35%; Filler 12.5%; Stabilizer 1.2%; Lubricant 0.12%; Polystyrene rubber 13%; Fire retardant 2.3%; Toner 0.5%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1250.
The embodiment 2 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 37%; Filler 13%; Stabilizer 1.0%; Lubricant 0.05-0.13%; Polystyrene rubber 15%; Fire retardant 1.6%; Toner 0.55%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1150.
The embodiment 3 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 37.5%; Filler 14%; Stabilizer 1.5%; Lubricant 0.10%; Polystyrene rubber 12%; Fire retardant 1.2%; Toner 0.9%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1050.
The embodiment 4 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 45%; Filler 11%; Stabilizer 2.0%; Lubricant 0.11%; Polystyrene rubber 14%; Fire retardant 2.7%; Toner 1.0%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1100.
The embodiment 5 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 42%; Filler 15%; Stabilizer 1.7%; Lubricant 0.05%; Polystyrene rubber 12.5%; Fire retardant 2.5%; Toner 0.6%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1200.
The embodiment 6 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 40%; Filler 10%; Stabilizer 1.45%; Lubricant 0.13%; Polystyrene rubber 13.6%; Fire retardant 1.9%; Toner 0.7%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1300.
The embodiment 7 of restrictive coating
In the present embodiment, the primary raw material of restrictive coating is (wt%): powder material of polyvinyl chloride 39%; Filler 12%; Stabilizer 1.67%; Lubricant 0.08%; Polystyrene rubber 11%; Fire retardant 1.7%; Toner 0.8%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1000.
Distinguish with the preparation embodiment 1-7 of restrictive coating, in the preparation embodiment 8-14 of restrictive coating, filler is the mixture of calcium carbonate powder and kaolin powder 3:1 mass ratio.In filler, calcium carbonate powder and kaolin powder body mass ratio can also be 2:1,4:1,2.5:1,3.5:1,3.7:1,2.6:1,2.3:1,2.9:1,3.3:1,3.8:1 and (2-4): other arbitrary value in 1 scope.
Distinguish with the preparation embodiment 8-14 of restrictive coating, in the preparation embodiment 15-21 of restrictive coating, in filler, the particle diameter of calcium carbonate powder is 80 microns, the particle diameter of kaolin powder is 20 microns.In filler the particle diameter of calcium carbonate powder can also be 83,85,88,90,92,94,97,100 and 80-100 micrometer range in other arbitrary value; The particle diameter of kaolin powder can also be 22,24,27,29,30,32,33,35,37,39,40 and 20-40 micrometer range in other arbitrary value.
Be below the specific embodiments of a kind of embodiment when the present invention adopts structure as shown in Figure 1:
The batching (recipe ratio is) of the restrictive coating of the wear-resisting resist bending holding wire of double shield in the present embodiment: polyvinyl chloride powder 42%, plasticizer 30.08%, filler 12%, stabilizer 1.1%, lubricant 0.12%, polystyrene rubber 13%, fire retardant 1.2%, toner 0.5%, mixing roll is added to after stirring in the following order during above-mentioned raw materials mixing, a powder material of polyvinyl chloride (powder material of polyvinyl chloride select the composition can selecting the powder of same type or two kinds and two or more powder according to the needs of actual process and product, such as: a-1 powder material of polyvinyl chloride 80wt%, a-2 powder material of polyvinyl chloride 20wt%, wherein a-1 powder material of polyvinyl chloride and a-2 powder material of polyvinyl chloride represent the powder material of polyvinyl chloride of different labels, and the proportioning of the powder material of polyvinyl chloride of each label also can be that other ratio is as 1:1, 1:2, 1:3, 1:4 etc.), b filler, (selecting of plasticizer can select the powder of same type or two kinds and two or more compositions according to the needs of actual process and product to c plasticizer, such as: C-1 plasticizer 80wt%, c-2 plasticizer 20wt%, wherein c-1 plasticizer and c-2 plasticizer represent different types of plasticizer, and the proportioning of all kinds of plasticizer in totally also can be that other ratio is as 1:1, 1:2, 1:3, 1:4 etc., rate accelerating material can select soybean oil, TOTM, DOTP, DPHP, DOA etc., concrete selection can be determined according to the performance requirement of product and working process parameter, specifically, applied environment is suitably can also add some points soybean oil after the sizing material of 80 degree has added DOTP to reduce costs and to regulate fineness, makes product light more attractive in appearance, applied environment is also can add some points soybean oil with cost declining after the sizing material of 105 degree adds TOTM, add appropriate DOA product then cold resistance be significantly improved), a, b, c first pour in mixing roll and stir by d stabilizer, e lubricant, f polystyrene rubber, g fire retardant, h toner successively, again g, e, a-1, f being continued to pour in mixing roll successively to stir, finally h, c-1 all being poured in mixing roll and stirring.Stop after the mixture temperature stirred rises to 40 DEG C stirring, treat that temperature drops to less than 30 DEG C.Open mixer to continue to stir.When temperature is raised to 65 DEG C, stops stirring, mixture is added in micelle extruder hopper, micelle extrusion temperature 140 DEG C-150 DEG C is set, carry out the pelletizing of sizing material particle and extrude packaging, do after completing when to send under escort jacket layer outside wire rod and use.
In the present embodiment, double shield wear-resisting resist bending holding wire conductor adopts: by 10 additional 2 0.10mm copper sheet interstitial wires of 0.10mm naked copper monofilament lines, be twisted into through actinobacillus device, distributor plate device, mould, strand winder, copper sheet interstitial wire is wrapped in middle stranded conductor by monofilament copper wire layer.(this conductor does holding wire, power line.Ground wire conductor)
In the present embodiment, double shield wear-resisting resist bending signal wire harness adopts: a, conductor make holding wire in conjunction with high density polyethylene (HDPE).The twisted pair wire that B, 2 holding wires are lay with 12 of stranded external diameter times.The signal wire harness of c, hot melt aluminium foil integument parcel twisted pair wire.
In the present embodiment, in the wear-resisting resist bending holding wire of double shield, power line adopts: a, conductor are in conjunction with polyvinyl chloride, and by heart yearn extruder, set temperature 150 DEG C-170 DEG C makes power line.
The technical scope midrange non-limit part that this place embodiment is protected application claims and in embodiment technical scheme to the new technical scheme that the equal replacement of single or multiple technical characteristic is formed, equally all in the scope of protection of present invention; Simultaneously in all embodiments enumerated or do not enumerate of the present invention program, parameters in the same embodiment only represents an example (i.e. a kind of feasible scheme) of its technical scheme, and between parameters, there is not strict cooperation and qualified relation, wherein each parameter can be replaced, except special declaration mutually when stating ask without prejudice to axiom and the present invention.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technical scheme be made up of above technical characteristic combination in any.The above is the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (8)
1. the wear-resisting resist bending holding wire of double shield, comprise restrictive coating, woven shield, ground wire, hot melt aluminium foil integument, power line, signal wire harness, gasket for packing, it is characterized in that: described ground wire is arranged in the separate chambers that formed by woven shield and hot melt aluminium foil integument, and wherein hot melt aluminium foil integument is arranged on inside woven shield;
The primary raw material of described restrictive coating is (wt%): powder material of polyvinyl chloride 35-45%; Filler 10-15%; Stabilizer 1.0-2.0%; Lubricant 0.05-0.13%; Polystyrene rubber 12-15%; Fire retardant 1.2-2.7%; Toner 0.5-1.0%; Plasticizer surplus, wherein the degree of polymerization of polyvinyl chloride is 1000-1300.
2. the wear-resisting resist bending holding wire of double shield according to claim 1, is characterized in that: described signal wire harness comprises holding wire and is wrapped in the hot melt aluminium foil integument outside holding wire.
3. the wear-resisting resist bending holding wire of double shield according to claim 1 and 2, is characterized in that: described holding wire intrafascicular hot melt aluminium foil integument is to the independence parcel of single holding wire or for wrap up the entirety of many holding wires to the parcel of holding wire.
4. the wear-resisting resist bending holding wire of double shield according to claim 1, is characterized in that: described filler is calcium carbonate powder and kaolin powder (2-4): the mixture of 1 mass ratio.
5. the wear-resisting resist bending holding wire of double shield according to claim 4, is characterized in that: in described filler, the particle diameter of calcium carbonate powder is 80-100 micron, the particle diameter of described kaolin powder is 20-40 micron.
6. the wear-resisting resist bending holding wire of double shield according to claim 1, it is characterized in that: described holding wire comprises insulating barrier, hollow conductor and interstitial wire, described interstitial wire is filled in hollow conductor, described insulating barrier is coated on outside hollow conductor, and described interstitial wire is the nylon yarn of copper sheet parcel.
7. the wear-resisting resist bending holding wire of double shield according to claim 6, is characterized in that: the external diameter of described interstitial wire is less than or equal to 0.10mm.
8. the wear-resisting resist bending holding wire of double shield according to claim 6, is characterized in that: the percentage elongation of described hollow conductor is 21-35%, and the percentage elongation of described interstitial wire is 40-50%.
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| CN201510707617.1A CN105321612A (en) | 2015-10-23 | 2015-10-23 | Doubled-shielded signal line resistant to wear and bending |
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| CN201510707617.1A CN105321612A (en) | 2015-10-23 | 2015-10-23 | Doubled-shielded signal line resistant to wear and bending |
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| CN110534240A (en) * | 2019-08-31 | 2019-12-03 | 浙江佳慧线缆有限公司 | A kind of wear-resisting resist bending signal wire of double shield and its manufacturing method |
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Application publication date: 20160210 |