CN102394142B - Superhigh-temperature cable - Google Patents

Superhigh-temperature cable Download PDF

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Publication number
CN102394142B
CN102394142B CN201110401056.4A CN201110401056A CN102394142B CN 102394142 B CN102394142 B CN 102394142B CN 201110401056 A CN201110401056 A CN 201110401056A CN 102394142 B CN102394142 B CN 102394142B
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conductor
superhigh
core
temperature
outside
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CN102394142A (en
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柳朝阳
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Xiangtan special cable Co., Ltd
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XIANGTAN SPECIAL CABLE CO Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02A30/00Adapting or protecting infrastructure or their operation

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Abstract

A kind of superhigh-temperature cable.It mainly solves existing common cable and cannot be used for the technical problem such as control or signal transmission of electric equipment in TRANSIENT HIGH TEMPERATURE high-speed fuel gas stream.Its drip irrigation device is: it includes center superhigh temperature signal conductor (1), interior overcoat (2), outer layer conductor (3) and external protection coating (4), it is centered by center superhigh temperature signal conductor (1), arranges 1 layer and above interior overcoat (2) outside center superhigh temperature signal conductor (1);Outer layer conductor (3) and external protection coating (4) is set gradually outward from the inside to the outside at interior overcoat (2).It can ensure to reach 2000 DEG C being subject to outside TRANSIENT HIGH TEMPERATURE such as temperature, and time 45~60s and high-speed fuel gas stream can also normal operation under washing away.Meanwhile, there is the performances such as radioprotective, heat-resisting, cold-resistant, moisture resistance, tension, bending radius are little, soft.It is mainly used in TRANSIENT HIGH TEMPERATURE heat run high-speed fuel gas stream, and the control of electric equipment or signal transmit.

Description

Superhigh-temperature cable
Technical field
The present invention relates to a kind of cable, especially can be suitably used in the propeller of the aircraft such as TRANSIENT HIGH TEMPERATURE (temperature 2000 DEG C, time 45~60s) rocket and servo control mechanism heat run high-speed fuel gas stream, the cable of the control of electric equipment or signal transmission.
Background technology
At present, common cable cannot be used for the transmission of control signal in the vehicle launch processes such as rocket, after rocket firing, moment occurs to control system transmission emergency instruction signal during abnormal conditions on arrow especially, ambient temperature now reaches 2000 DEG C, simultaneously with the impact of high velocity air, signal conductor in cable to ensure normal operation in 45~60s time in high temperature environments in this case, therefore, the reliability of cable, safety are proposed very high requirement, and common cable can not be suitable for.
Summary of the invention
It is an object of the invention to provide in propeller and the servo control mechanism heat run high-speed fuel gas stream that one can be suitably used for the aircraft such as TRANSIENT HIGH TEMPERATURE (temperature 2000 DEG C, time 45~60s) rocket, the superhigh-temperature cable of the control of electric equipment or signal transmission.
The technical solution adopted for the present invention to solve the technical problems is: it includes center superhigh temperature signal conductor 1, interior overcoat 2, outer layer conductor 3 and external protection coating 4, it is centered by center superhigh temperature signal conductor 1, arranges 1 layer and above interior overcoat 2 outside center superhigh temperature signal conductor 1;Outer layer conductor 3 and external protection coating 4 is set gradually from the inside to the outside outside interior overcoat 2.Described center superhigh temperature signal conductor 1 can be formed by the signal core line 15 of 3 or more than 3 is stranded, and described signal core line 15 includes conductor 11, insulation and insulating protective layer, and conductor 11 adopts that the copper nickel plating silver alloy wire of 3 or more than 3 is stranded to be formed;Adopt poly tetrafluoroethylene and polyimide film to be composited core insulation in conductor 11 periphery;Glass braid is adopted to become single-core line insulating protective layer 14 outside core insulation.Described center superhigh temperature signal conductor 1 also can be formed by the signal core line 15 of 3 or more than 3 is stranded, and described signal core line 15 includes conductor 11, insulation and insulating protective layer, and conductor 11 adopts that the copper nickel plating silver alloy wire of 3 or more than 3 is stranded to be formed;In conductor 11 periphery, wrapped poly tetrafluoroethylene 12 and polyimide film 13 form core insulation successively;Glass braid is adopted to become single-core line insulating protective layer 14 outside core insulation.
Described interior overcoat 2 can adopt two-sided mica tape, glass braid, two-sided mica tape, polyimide film to be composited.Described interior overcoat 2 may also comprise two-sided Mica tape layer 21 from the inside to the outside, glass braid 22, two-sided Mica tape layer 23 and polyimide film lapping layer 24.
Described outer layer conductor 3 can include outer conductor conductor 32 and outer conductor insulating barrier 31, and outer conductor conductor 32 adopts that many copper tinned wires are stranded to be formed;Outer conductor insulating barrier 31 adopts perfluoroethylene-propylene to extrude and forms;Or outer layer conductor 3 is twisted into cable core around interior overcoat 2.Also can being carried out stranded and adopt tinned wird to be woven into cable core 5 outside by the outer layer conductor 3 of 2 or more than 2, outer layer cable core 5 is twisted into cable core around interior overcoat 2.Or the outer layer conductor 3 of 2 or more than 2 is carried out stranded and adopts tinned wird to be woven into cable core 5 outside, around interior overcoat 2, first stranded outer layer cable core 5 and outer layer conductor 3, more stranded outer layer conductor 3 constitute total cable core from the inside to the outside.
Described external protection coating 4 can adopt polyimide film, two-sided mica tape, glass braid, one side mica tape, polyimide film, tin plated wire braid shielded, polyimide film, extrusion flame-proof elastomer sheath to be composited.
Described external protection coating 4 also can from the inside to the outside wrapped polyimide film 41, two-sided Muscovitum belt 42, glass braid 43, one side Muscovitum belt 44, polyimide film 45, tin plated wire woven shield 46, polyimide film 47, outermost layer adopt extrusion flame-proof elastomer cladding formed restrictive coating 48.
Beneficial effects of the present invention: it can ensure that the center superhigh temperature signal conductor in cable can normal operation under being subject to outside TRANSIENT HIGH TEMPERATURE (temperature 2000 DEG C, time 45~60s) and high-speed fuel gas stream washes away.Meanwhile, there is the performances such as radioprotective, heat-resisting, cold-resistant, moisture resistance, tension, bending radius are little, soft.It is mainly used in propeller and the servo control mechanism heat run high-speed fuel gas stream of the aircraft such as TRANSIENT HIGH TEMPERATURE (temperature 2000 DEG C, time 45~60s) rocket, the cable of the control of electric equipment or signal transmission.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
In figure: the superhigh temperature signal conductor of 1-center, overcoat in 2-, the outer layer conductor of 3-, 4-external protection coating.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further details.
Embodiment 1, the present invention includes center superhigh temperature signal conductor 1, interior overcoat 2, outer layer conductor 3 and external protection coating 4, and it is centered by center superhigh temperature signal conductor 1, arranges 1 layer and above interior overcoat 2 outside center superhigh temperature signal conductor 1;Outer layer conductor 3 and external protection coating 4 is set gradually from the inside to the outside outside interior overcoat 2.Consult Fig. 1.
Described center superhigh temperature signal conductor 1 can be formed by the signal core line 15 of 3 or more than 3 is stranded, and described signal core line 15 includes conductor 11, insulation and insulating protective layer, and conductor 11 adopts that the copper nickel plating silver alloy wire of 3 or more than 3 is stranded to be formed;Adopt poly tetrafluoroethylene and polyimide film to be composited core insulation in conductor 11 periphery;Glass braid is adopted to become single-core line insulating protective layer 14 outside core insulation.
Described center superhigh temperature signal conductor 1 also can be formed by the signal core line 15 of 3 or more than 3 is stranded, and described signal core line 15 includes conductor 11, insulation and insulating protective layer, and conductor 11 adopts that the copper nickel plating silver alloy wire of 3 or more than 3 is stranded to be formed;In conductor 11 periphery, wrapped poly tetrafluoroethylene 12 and polyimide film 13 form core insulation successively;Glass braid is adopted to become single-core line insulating protective layer 14 outside core insulation.
Consider that superhigh temperature wire needs to meet the use condition of high temperature, ensure the flexibility of cable simultaneously, so many copper nickel plating Silver alloy wire are twisted into one conductor wire core, to ensure the flexibility of stranded conductor;Consider that superhigh temperature wire to meet the use condition of high temperature, adopt energy high-temperature resistant composite material as the insulant of inside conductor, be namely composited with poly tetrafluoroethylene and polyimide film;For preventing heat transmission mutual between the key signal part solid conductor of center, adopt pyroceram silk that each wire is carried out knitted thermal;For ensureing the flexibility when structural stability of cable and installation and use, multiply is woven core and is twisted into cable core by special twisting process;
Embodiment 2, the interior overcoat 2 of the present invention can adopt two-sided mica tape, glass braid, two-sided mica tape, polyimide film to be composited.For reducing and delaying cable being subject to external high temperature temperature 2000 DEG C, the heat that time 45~60s and high-speed fuel gas stream wash away and the fusing of outer layer conductor the produces impact on center key signal part wire, having carried out high temperature composite protective in cable core Wai Dui center key signal part, described interior overcoat 2 may also comprise two-sided Mica tape layer 21 from the inside to the outside, glass braid 22, two-sided Mica tape layer 23 and polyimide film lapping layer 24.Consulting Fig. 1, all the other are with embodiment 1.
Embodiment 3, the outer layer conductor 3 of the present invention includes outer conductor conductor 32 and outer conductor insulating barrier 31, and outer conductor conductor 32 adopts that many copper tinned wires are stranded to be formed;Outer conductor insulating barrier 31 adopts perfluoroethylene-propylene to extrude and forms;Or outer layer conductor 3 is twisted into cable core around interior overcoat 2.Also can being carried out stranded and adopt tinned wird to be woven into cable core 5 outside by the outer layer conductor 3 of 2 or more than 2, outer layer cable core 5 is twisted into cable core around interior overcoat 2.Or the outer layer conductor 3 of 2 or more than 2 is carried out stranded and adopts tinned wird to be woven into cable core 5 outside, around interior overcoat 2, first stranded outer layer cable core 5 and outer layer conductor 3, more stranded outer layer conductor 3 constitute total cable core from the inside to the outside.Consult Fig. 1, all the other same above-described embodiments.
Consider to want assembly connection device to need by cable external diameter be little, cable core and plug connection position need to do high temperature protection but limited space causes the feature that insulated wire cores insulating barrier is thin, so multiply tinned copper wire is twisted into one conductor wire core by regular stranded form, to ensure that stranded conductor size is little, Stability Analysis of Structures, stranded outward appearance rounding, without jumping stock;
Consider that cable allows operating temperature-45 DEG C~+125 DEG C and resistance to TRANSIENT HIGH TEMPERATURE temperature 2000 DEG C for a long time, time 45~60s and high velocity air wash away, require that the outside diameter of cable is little, insulating barrier is thin simultaneously, so extruding the relatively thin perfluoroethylene-propylene of a layer thickness on conductor as insulation, this ensure that the resistant of high or low temperature of insulated wire cores and electrical insulation capability;
Considering that cable is in electrical control and communication system, part core need to transmit low-and high-frequency signal, so by part core according to advanced technique pair twist between two, so can ensure that pair twist core has stable distribution capacity;Considering the interference to holding wire of the cable core built-in field, so having woven density on pair twist core to be not less than the tinned copper wire of 80% screen layer as signal core, this screen layer also can resist washing away of outside high velocity air simultaneously.
For ensureing the flexibility when structural stability of cable and installation and use, so multiply perfluoroethylene-propylene insulated wire cores, pair twist shielding core are stranded in outside the superhigh temperature signal conductor cable core of center by special regular twisting process, so namely ensure that the maximum softness of cable and structural stability, the perfluoroethylene-propylene wire of cable core outer layer also can delay Exterior cable high temperature and high speed combustion airflow scouring that the air temperature and current of center superhigh temperature signal conductor is affected simultaneously.
Embodiment 4, the described external protection coating 4 of the present invention can adopt polyimide film, two-sided mica tape, glass braid, one side mica tape, polyimide film, tin plated wire braid shielded, polyimide film, extrusion flame-proof elastomer sheath to be composited.For reducing and delaying cable being subject to outside TRANSIENT HIGH TEMPERATURE temperature 2000 DEG C, time 45~60s washes away the impact becoming cable core with high-speed fuel gas stream, stranding has been carried out high temperature composite protective by us outside cable core, external protection coating 4 also can wrapped polyimide film 41 from the inside to the outside, two-sided Muscovitum belt 42, glass braid 43, one side Muscovitum belt 44, polyimide film 45, tin plated wire woven shield 46, polyimide film 47, extrusion flame-proof elastomer cladding is adopted to form restrictive coating 48 at outermost layer, wherein tin plated wire braid not only can resist washing away of outside high-speed fuel gas stream, can also the interference to cable core of the shielded cable external electromagnetic field;Consider that cable allows operating temperature-45 DEG C~+125 DEG C and resistance to TRANSIENT HIGH TEMPERATURE temperature 2000 DEG C for a long time, time 45~60s and high-speed fuel gas stream wash away, require that the outside diameter of cable is little simultaneously, so extruding flame-proof elastomer on composite armor, this ensure that the high-low temperature resistant of cable, high velocity air fire-retardant, resistance to wash away and softness, improve the safety and reliability of product.Consult Fig. 1, all the other same above-described embodiments.

Claims (8)

1. a superhigh-temperature cable, it is characterized in that: it includes center superhigh temperature signal conductor (1), interior overcoat (2), outer layer conductor (3) and external protection coating (4), it is centered by center superhigh temperature signal conductor (1), arranges 1 layer and above interior overcoat (2) outside center superhigh temperature signal conductor (1);Outer layer conductor (3) and external protection coating (4) is set gradually outward from the inside to the outside at interior overcoat (2),Described interior overcoat (2) adopts two-sided mica tape, glass braid, two-sided mica tape, polyimide film to be composited.
2. superhigh-temperature cable according to claim 1, it is characterized in that: described center superhigh temperature signal conductor (1) is that the signal core line (15) by 3 or more than 3 is stranded to be formed, described signal core line (15) includes conductor (11), insulation and insulating protective layer, and the copper nickel plating silver alloy wire of conductor (11) employing 3 or more than 3 is stranded to be formed;Adopt poly tetrafluoroethylene and polyimide film to be composited core insulation in conductor (11) periphery;Glass braid is adopted to become single-core line insulating protective layer (14) outside core insulation.
3. superhigh-temperature cable according to claim 1, it is characterized in that: described center superhigh temperature signal conductor (1) is that the signal core line (15) by 3 or more than 3 is stranded to be formed, described signal core line (15) includes conductor (11), insulation and insulating protective layer, and the copper nickel plating silver alloy wire of conductor (11) employing 3 or more than 3 is stranded to be formed;Core insulation is formed in conductor (11) periphery successively wrapped poly tetrafluoroethylene (12) and polyimide film (13);Glass braid is adopted to become single-core line insulating protective layer (14) outside core insulation.
4. superhigh-temperature cable according to claim 1, is characterized in that: described outer layer conductor (3) includes outer conductor conductor (32) and outer conductor insulating barrier (31), and outer conductor conductor (32) adopts that many copper tinned wires are stranded to be formed;Outer conductor insulating barrier (31) adopts perfluoroethylene-propylene to extrude and forms;Outer layer conductor (3) is twisted into cable core around interior overcoat (2).
5. superhigh-temperature cable according to claim 1, is characterized in that: being carried out by the outer layer conductors (3) of 2 or more than 2 stranded and adopt tinned wird to be woven into cable core (5) outside, outer layer cable core (5) is twisted into cable core around interior overcoat (2).
6. superhigh-temperature cable according to claim 1, it is characterized in that: being carried out by the outer layer conductors (3) of 2 or more than 2 stranded and adopt tinned wird to be woven into cable core (5) outside, around interior overcoat (2), first stranded outer layer cable core (5) and outer layer conductor (3), more stranded outer layer conductor (3) constitute total cable core from the inside to the outside.
7. superhigh-temperature cable according to claim 1, is characterized in that: described external protection coating (4) adopts polyimide film, two-sided mica tape, glass braid, one side mica tape, polyimide film, tin plated wire braid shielded, polyimide film, extrusion flame-proof elastomer sheath to be composited.
8. superhigh-temperature cable according to claim 1, it is characterized in that: described external protection coating (4) wrapped polyimide film (41) from the inside to the outside, two-sided Muscovitum belt (42), glass braid (43), one side Muscovitum belt (44), polyimide film (45), tin plated wire woven shield (46), polyimide film (47), adopt extrusion flame-proof elastomer cladding to form restrictive coating (48) at outermost layer.
CN201110401056.4A 2011-12-06 2011-12-06 Superhigh-temperature cable Active CN102394142B (en)

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CN102394142B true CN102394142B (en) 2016-07-20

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CN106935327B (en) * 2017-05-01 2024-07-05 湖南华菱线缆股份有限公司 Special super five-class cable structure for aerospace and preparation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1087409A2 (en) * 1999-09-24 2001-03-28 Lucent Technologies Inc. Electrical cable apparatus having improved flame retardancy and method for making
CN2924732Y (en) * 2006-06-05 2007-07-18 南京全信传输科技有限公司 Filmcovered insulated high-temperature line composed of polyimide and modified PTFE
CN101894604A (en) * 2010-06-28 2010-11-24 湘潭市特种线缆有限公司 Multi-core anti-electromagnetic interference control cable
CN202373334U (en) * 2011-12-06 2012-08-08 湘潭市特种线缆有限公司 Superhigh temperature cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1087409A2 (en) * 1999-09-24 2001-03-28 Lucent Technologies Inc. Electrical cable apparatus having improved flame retardancy and method for making
CN2924732Y (en) * 2006-06-05 2007-07-18 南京全信传输科技有限公司 Filmcovered insulated high-temperature line composed of polyimide and modified PTFE
CN101894604A (en) * 2010-06-28 2010-11-24 湘潭市特种线缆有限公司 Multi-core anti-electromagnetic interference control cable
CN202373334U (en) * 2011-12-06 2012-08-08 湘潭市特种线缆有限公司 Superhigh temperature cable

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Address after: No.69 Jinji Road, wujiaxiang Industrial Park, Yisuhe, Xiangtan County, Xiangtan City, Hunan Province

Patentee after: Xiangtan special cable Co., Ltd

Address before: Xiangtan County, Hunan province 411228 Xiangtan Yisuhe Wu Wenjiaxiang Industrial Park Jinji Road No. 6 special cable company

Patentee before: XIANGTAN SPECIAL CABLE Co.,Ltd.