CN102394142A - Superhigh-temperature cable - Google Patents

Superhigh-temperature cable Download PDF

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Publication number
CN102394142A
CN102394142A CN2011104010564A CN201110401056A CN102394142A CN 102394142 A CN102394142 A CN 102394142A CN 2011104010564 A CN2011104010564 A CN 2011104010564A CN 201110401056 A CN201110401056 A CN 201110401056A CN 102394142 A CN102394142 A CN 102394142A
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China
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conductor
cable
outside
core
superhigh temperature
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CN2011104010564A
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CN102394142B (en
Inventor
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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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

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Abstract

A superhigh-temperature cable mainly solves the technical problems that a normal cable can not be used for controlling or signal transmitting of electric equipment in instant high-temperature high-speed combustion-gas streams, and the like. The key points of the technical scheme of the cable are as follows: the cable comprises a central superhigh-temperature signal conductor (1), inner protection layers (2), outer leads (3) and outer protection layers (4); by taking the central superhigh-temperature signal conductor (1) as a center, more than one inner protection layer (2) is arranged outside the central superhigh-temperature signal conductor (1); and the outer leads (3) and the outer protection layers (4) are sequentially arranged outside the inner protection layers (2) from inside to outside. The superhigh-temperature cable can ensure to run normally under the conditions that the cable is subjected to the outside instant high temperature such as the temperature being above 2000 DEG C, within time range being 45-60s and washed by high-speed combustion-gas stream. Simultaneously, the superhigh-temperature cable has the performances of radiation resistance, heat resistance, cold resistance, moisture resistance, tensile resistance, small bending radius, softness and the like. The superhigh-temperature cable is mainly used for controlling or signal transmitting of electric equipment in the instant high-temperature hot test run chigh-speed combustion-gas streams.

Description

The superhigh temperature cable
Technical field
The present invention relates to a kind of cable, especially can be applicable to TRANSIENT HIGH TEMPERATURE (in the propeller of aircraft such as 2000 ℃ of temperature, times 45～60s) rocket and the servomechanism heat run high-speed fuel gas stream, the cable that the control of electric equipment or signal transmit.
Background technology
At present; Common cable can not be used for the transmission of aircraft emission process control signals such as rocket; Will on arrow, control system transmit the emergency instruction signal when moment, abnormal conditions took place after rocket firing especially, the ambient temperature of this moment reaches 2000 ℃, and the while is with the impact of high velocity air; Signal conductor in the cable will guarantee under hot environment 45～60s operate as normal in the time in this case; Therefore, to reliability, the very high requirement of fail safe proposition of cable, common cable can not be suitable for.
Summary of the invention
The purpose of this invention is to provide a kind of can be applicable to TRANSIENT HIGH TEMPERATURE (in the propeller of aircraft such as 2000 ℃ of temperature, times 45～60s) rocket and the servomechanism heat run high-speed fuel gas stream, the superhigh temperature cable that the control of electric equipment or signal transmit.
The technical solution adopted for the present invention to solve the technical problems is: it comprises center superhigh temperature signal conductor 1, interior overcoat 2, outer layer conductor 3 and external protection coating 4; It is the center with center superhigh temperature signal conductor 1, outside center superhigh temperature signal conductor 1, be provided with 1 layer and above in overcoat 2; Layer conductor 3 and external protection coating 4 outside outside interior overcoat 2, setting gradually from the inside to the outside.Said center superhigh temperature signal conductor 1 can be by 15 stranded the forming of the signal core line more than 3 or 3, and said signal core line 15 comprises conductor 11, insulation and insulating protective layer, stranded the forming of copper silver plated alloy wire that conductor 11 adopts more than 3 or 3; Adopt poly tetrafluoroethylene and the polyimide film core insulation layer that is composited in conductor 11 peripheries; Outside the core insulation layer, adopt glass braid to become single-core line insulating protective layer 14.Said center superhigh temperature signal conductor 1 also can be by 15 stranded the forming of the signal core line more than 3 or 3, and said signal core line 15 comprises conductor 11, insulation and insulating protective layer, stranded the forming of copper silver plated alloy wire that conductor 11 adopts more than 3 or 3; Form the core insulation layer at the wrapped successively poly tetrafluoroethylene 12 of conductor 11 peripheries with polyimide film 13; Outside the core insulation layer, adopt glass braid to become single-core line insulating protective layer 14.
Overcoat 2 can adopt two-sided mica tape, glass braid, two-sided mica tape, polyimide film to be composited in said.Overcoat 2 also can comprise from the inside to the outside two-sided mica tape lapping layer 21, glass braid 22, two-sided mica tape lapping layer 23 and polyimide film lapping layer 24 in said.
Said outer layer conductor 3 can comprise outer conductor conductor 32 and outer conductor insulating barrier 31, and outer conductor conductor 32 adopts many stranded the forming of copper tinned wire; 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 the outer layer conductor more than 2 or 23 carried out stranded and adopts tinned wird to be woven into cable core 5 outside, outer cable core 5 be twisted into cable core around interior overcoat 2.Or the outer layer conductor more than 2 or 23 carried out stranded and adopt tinned wird to be woven into cable core 5 outside, around the earlier stranded from the inside to the outside outer cable core 5 of interior overcoat 2 and outer layer conductor 3, the total cable core of stranded outer layer conductor 3 formations again.
Said external protection coating 4 can adopt polyimide film, two-sided mica tape, glass braid, single face mica tape, polyimide film, tin plated wire braid shielded, polyimide film, extrude the flame-proof elastomer sheath is composited.
Said external protection coating 4 also can be wrapped from the inside to the outside polyimides rete 41, two-sided mica belt 42, glass braid 43, single face mica belt 44, polyimides rete 45, tin plated wire woven shield 46, polyimides rete 47, adopt at outermost layer and to extrude flame-proof elastomer and coat and form restrictive coating 48.
Beneficial effect of the present invention: it can guarantee that (2000 ℃ of temperature, under time 45～60s) and high-speed fuel gas stream washed away, the center superhigh temperature signal conductor in the cable can operate as normal receiving outside TRANSIENT HIGH TEMPERATURE.Simultaneously, have performances such as radioresistance, heat-resisting, cold-resistant, moisture resistance, tension, bending radius are little, softness.It mainly be used for TRANSIENT HIGH TEMPERATURE (2000 ℃ of temperature, in the propeller of aircraft such as times 45～60s) rocket and the servomechanism heat run high-speed fuel gas stream, the cable that the control of electric equipment or signal transmit.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure: overcoat in the 1-center superhigh temperature signal conductor, 2-, the outer layer conductor of 3-, 4-external protection coating.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained 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 the center with center superhigh temperature signal conductor 1, outside center superhigh temperature signal conductor 1, be provided with 1 layer and above in overcoat 2; Layer conductor 3 and external protection coating 4 outside outside interior overcoat 2, setting gradually from the inside to the outside.Consult Fig. 1.
Said center superhigh temperature signal conductor 1 can be by 15 stranded the forming of the signal core line more than 3 or 3, and said signal core line 15 comprises conductor 11, insulation and insulating protective layer, stranded the forming of copper silver plated alloy wire that conductor 11 adopts more than 3 or 3; Adopt poly tetrafluoroethylene and the polyimide film core insulation layer that is composited in conductor 11 peripheries; Outside the core insulation layer, adopt glass braid to become single-core line insulating protective layer 14.
Said center superhigh temperature signal conductor 1 also can be by 15 stranded the forming of the signal core line more than 3 or 3, and said signal core line 15 comprises conductor 11, insulation and insulating protective layer, stranded the forming of copper silver plated alloy wire that conductor 11 adopts more than 3 or 3; Form the core insulation layer at the wrapped successively poly tetrafluoroethylene 12 of conductor 11 peripheries with polyimide film 13; Outside the core insulation layer, adopt glass braid to become single-core line insulating protective layer 14.
Consider that the superhigh temperature lead need satisfy the service condition of high temperature, guarantee the flexibility of cable simultaneously, so with synthetic one conductor wire core of many copper silver plated alloy skein silks, to guarantee the flexibility of stranded conductor; Consider that the superhigh temperature lead will satisfy the service condition of high temperature, adopt the insulating material of ability high-temperature resistant composite material, promptly be composited with poly tetrafluoroethylene and polyimide film as inside conductor; For preventing mutual heat transmission between the key signal part solid conductor of center, adopt the pyroceram silk that every lead is carried out knitted thermal; Flexibility during for the structural stability that guarantees cable and installation and use weaves core with multiply and is twisted into cable core by special stranded technology;
Embodiment 2, and interior overcoat 2 of the present invention can adopt two-sided mica tape, glass braid, two-sided mica tape, polyimide film to be composited.Receiving 2000 ℃ of outside high-temperature temperatures for reducing and delaying cable; The heat that time 45～60s and high-speed fuel gas stream wash away and outer layer conductor melts generation is to the partly influence of lead of center key signal; Outside cable core, the center key signal has partly been carried out the high temperature composite protective, said interior overcoat 2 also can comprise from the inside to the outside two-sided mica tape lapping layer 21, glass braid 22, two-sided mica tape lapping layer 23 and polyimide film lapping layer 24.Consult Fig. 1, all the other are with embodiment 1.
Embodiment 3, and outer layer conductor 3 of the present invention comprises outer conductor conductor 32 and outer conductor insulating barrier 31, and outer conductor conductor 32 adopts many stranded the forming of copper tinned wire; 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 the outer layer conductor more than 2 or 23 carried out stranded and adopts tinned wird to be woven into cable core 5 outside, outer cable core 5 be twisted into cable core around interior overcoat 2.Or the outer layer conductor more than 2 or 23 carried out stranded and adopt tinned wird to be woven into cable core 5 outside, around the earlier stranded from the inside to the outside outer cable core 5 of interior overcoat 2 and outer layer conductor 3, the total cable core of stranded outer layer conductor 3 formations again.Consult Fig. 1, all the other are with above-mentioned embodiment.
Consider that cable wants assembly connector to need that external diameter is little, cable core need be done high temperature protection with the plug connecting portion but the limited characteristics that cause the insulated wire cores insulating barrier to approach in space; So the multiply tinned copper wire is twisted into one conductor wire core by regular stranded form; To guarantee little, the Stability Analysis of Structures of stranded conductor size, stranded outward appearance rounding, nothing are jumped thigh;
Consider that cable allows working temperature-45 ℃～+ 125 ℃ and 2000 ℃ of anti-TRANSIENT HIGH TEMPERATURE temperature for a long time; Time 45～60s and high velocity air wash away; Require simultaneously that the outside diameter of cable is little, insulating barrier is thin; So the perfluoroethylene-propylene that on conductor, extrudes one deck thinner thickness, has guaranteed the resistant of high or low temperature and the electrical insulation capability of insulated wire cores like this as insulation;
Consider that cable is used for electrical control and communication system, the part core need transmit the low-and high-frequency signal, thus with the part core according to advanced person's technology pair twist in twos, can guarantee that like this pair twist core has stable distributed capacitance; Consider the interference of cable core built-in field to holding wire, be not less than 80% the tinned copper wire screen as the signal core so on the pair twist core, woven density, this screen also can be resisted washing away of outside high velocity air simultaneously.
Flexibility during for the structural stability that guarantees 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 stranded technology; So promptly guaranteed maximum softness and the structural stability of cable, the outer field perfluoroethylene-propylene lead of cable core also can delay the outside high temperature and high speed gas-flow of cable and wash away the air temperature and current influence to center superhigh temperature signal conductor simultaneously.
Embodiment 4, and said external protection coating 4 of the present invention can adopt polyimide film, two-sided mica tape, glass braid, single face mica tape, polyimide film, tin plated wire braid shielded, polyimide film, extrude the flame-proof elastomer sheath is composited.Receiving 2000 ℃ of outside TRANSIENT HIGH TEMPERATURE temperature for reducing and delaying cable; Time 45～60s washes away becoming the influence of cable core with high-speed fuel gas stream; We have carried out the high temperature composite protective to stranding outside cable core; External protection coating 4 also can be wrapped from the inside to the outside polyimides rete 41, two-sided mica belt 42, glass braid 43, single face mica belt 44, polyimides rete 45, tin plated wire woven shield 46, polyimides rete 47; Extrude flame-proof elastomer in the outermost layer employing and coat formation restrictive coating 48, wherein the tin plated wire braid not only can be resisted washing away of outside high-speed fuel gas stream, and all right shielded type cable external electromagnetic field is to the interference of cable core; Consider that cable allows working temperature-45 ℃～+ 125 ℃ and 2000 ℃ of anti-TRANSIENT HIGH TEMPERATURE temperature for a long time; Time 45～60s and high-speed fuel gas stream wash away; Require the outside diameter of cable little simultaneously; So on composite armor, extrude flame-proof elastomer, guaranteed that like this high-low temperature resistant of cable, fire-retardant, anti-high velocity air wash away and softness, have improved security of products and reliability.Consult Fig. 1, all the other are with above-mentioned embodiment.

Claims (10)

1. superhigh temperature cable; It is characterized in that: it comprises center superhigh temperature signal conductor (1), interior overcoat (2), outer layer conductor (3) and external protection coating (4); It is the center with center superhigh temperature signal conductor (1), outside center superhigh temperature signal conductor (1), be provided with 1 layer and above in overcoat (2); Layer conductor (3) and external protection coating (4) outside outside interior overcoat (2), setting gradually from the inside to the outside.
2. superhigh temperature cable according to claim 1; It is characterized in that: said center superhigh temperature signal conductor (1) is by stranded the forming of the signal core line more than 3 or 3 (15); Said signal core line (15) comprises conductor (11), insulation and insulating protective layer, and conductor (11) adopts stranded the forming of copper silver plated alloy wire more than 3 or 3; Adopt poly tetrafluoroethylene and the polyimide film core insulation layer that is composited in conductor (11) periphery; Outside the core insulation layer, adopt glass braid to become single-core line insulating protective layer (14).
3. superhigh temperature cable according to claim 1; It is characterized in that: said center superhigh temperature signal conductor (1) is by stranded the forming of the signal core line more than 3 or 3 (15); Said signal core line (15) comprises conductor (11), insulation and insulating protective layer, and conductor (11) adopts stranded the forming of copper silver plated alloy wire more than 3 or 3; Form the core insulation layer at conductor (11) wrapped successively poly tetrafluoroethylene of periphery (12) and polyimide film (13); Outside the core insulation layer, adopt glass braid to become single-core line insulating protective layer (14).
4. superhigh temperature cable according to claim 1 is characterized in that: overcoat (2) adopts two-sided mica tape, glass braid, two-sided mica tape, polyimide film to be composited in said.
5. superhigh temperature cable according to claim 1 is characterized in that: overcoat (2) comprises from the inside to the outside two-sided mica tape lapping layer (21), glass braid (22), two-sided mica tape lapping layer (23) and polyimide film lapping layer (24) in said.
6. superhigh temperature cable according to claim 1 is characterized in that: said outer layer conductor (3) comprises outer conductor conductor (32) and outer conductor insulating barrier (31), and outer conductor conductor (32) adopts many stranded the forming of copper tinned wire; 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).
7. superhigh temperature cable according to claim 1 is characterized in that: the outer layer conductor (3) more than 2 or 2 is carried out stranded and adopts tinned wird to be woven into cable core (5) outside, and outer cable core (5) is twisted into cable core around interior overcoat (2).
8. superhigh temperature cable according to claim 1; It is characterized in that: the outer layer conductor (3) more than 2 or 2 is carried out stranded and adopts tinned wird to be woven into cable core (5) outside, around interior overcoat (2) from the inside to the outside earlier stranded outer cable core (5) and outer layer conductor (3), stranded outer layer conductor (3) constitutes total cable core again.
9. superhigh temperature cable according to claim 1 is characterized in that: said external protection coating (4) adopts polyimide film, two-sided mica tape, glass braid, single face mica tape, polyimide film, tin plated wire braid shielded, polyimide film, extrude the flame-proof elastomer sheath is composited.
10. superhigh temperature cable according to claim 1; It is characterized in that: the wrapped from the inside to the outside polyimides rete of said external protection coating (4) (41), two-sided mica belt (42), glass braid (43), single face mica belt (44), polyimides rete (45), tin plated wire woven shield (46), polyimides rete (47), extrude flame-proof elastomer in the outermost layer employing and coat formation restrictive coating (48).
CN201110401056.4A 2011-12-06 2011-12-06 Superhigh-temperature cable Active CN102394142B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106935327A (en) * 2017-05-01 2017-07-07 湖南华菱线缆股份有限公司 A kind of Aero-Space extraordinary super category 5 cable structure 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106935327A (en) * 2017-05-01 2017-07-07 湖南华菱线缆股份有限公司 A kind of Aero-Space extraordinary super category 5 cable structure and preparation method

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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.