CN110148489A - A kind of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity and its manufacturing process - Google Patents
A kind of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity and its manufacturing process Download PDFInfo
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- CN110148489A CN110148489A CN201910474939.4A CN201910474939A CN110148489A CN 110148489 A CN110148489 A CN 110148489A CN 201910474939 A CN201910474939 A CN 201910474939A CN 110148489 A CN110148489 A CN 110148489A
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- Prior art keywords
- resistance
- high conductivity
- aerospace
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- cable
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/141—Insulating conductors or cables by extrusion of two or more insulating layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Abstract
The present invention relates to a kind of aerospace resistance to string arc radiation resistant cables of light-duty high conductivity and its manufacturing process, belong to field of cable technology.The cable includes conductor and the inner insulating layer set gradually outside conductor, external insulation layer, the conductor, which is pressed using several high conductivities without yellow gold, to be twisted, the inner insulating layer, which is that modified polyorganosiloxane-polyimide composite film is wrapped, to be formed, and the external insulation layer is formed by being modified X-ETFE extrusion molding.The aerospace produced by the present invention resistance to string arc radiation resistant cable of light-duty high conductivity, it can adapt to work under the harsh environments such as aerospace vehicle, with excellent electrical property, mechanical performance, high and low temperature resistance, mechanical property, radiation-resistant property, resistance to elemental oxygen performance, vacuum outgas etc. can be used for a long time within the scope of (- 100~+230) DEG C.
Description
Technical field
The present invention relates to a kind of aerospace resistance to string arc radiation resistant cables of light-duty high conductivity and its manufacturing process, belong to cable
Technical field.
Background technique
As that studies space environment gos deep into, higher reliability requirement is proposed to space flight wiring and wiring system,
Be embodied in weight, vacuum ease gas, resistance to elemental oxygen, it is resistance to string arc, uvioresistant, high-energy irradiation resilience, and
Its anti-flammability, mechanical performance made higher requirement.On aerospace history, the failure accidents due to caused by cable are not
In minority.Nasa (NASA) clearly proposes to be forbidden to use simple polyimides or be polymerize by other aromatic series merely
Object, the wire and cable for constituting insulation with fluoroplastics merely.For the spacecraft as satellite, the matter of utmost importance that is faced
No more than the reduction of spacecraft own wt.Electronics systems and composition for kilogram weights hundreds of in satellite health are effective
The electronic component of load, including wire and cable, it is necessary to try to mitigate their weight.The mitigation of weight can save per kilogram number
Hundred dollars of launching costs, while more weight and spatial position can be vacateed, so that satellite is carried more fuel, so as to
To greatly improve effective service life of satellite.
It goes here and there arc (Arc tracking, Arc propagation), refers to one be present between two or multiple conducting wires
Kind electrical breakdown expansion is shown as once a route generates an electrical failure, this failure can expand to other route
Exhibition, causes route of serious failure or even conflagration.It has been established that, by the insulated electric conductor that pure Kapton is wrapped
The line system of composition is easier to occur, and leads to astonishing failure.
Vacuum is escaped gas (out gassing), is the volatilization (gasification) of substance under a high vacuum, is one of aerospace line
New demand, research shows that the atmospheric pressure of earth surface is 760mmHg, the vacuum degree on this namely ground.It and is 250Km in height
High-altitude, vacuum degree can reach 10-6MmHg, highly in the high-altitude of 650km, vacuum degree reaches 10-12MmHg, most modern determines
Position satellite, flight track height reach 8000km or so, and vacuum degree is taller, and many substances hold very much under such high vacuum
Easily directly volatilize from solid-state.The volatilization of one side substance is a kind of damage, and on the other hand more unacceptable is volatile matter
Matter can settle, and can be aggregated to the cold, can pollute electrical equipment in this way, and the optics of the optical surface and mirror surface that detract optical prism is sensitive
Degree, makes satellite cisco unity malfunction, serious or even can corrode.Accordingly, NASA and CAST is to total ease under high vacuum
Tolerance (total weight loss, TML) Gui Dings the requirement of the ﹪ of≤1, and Dings the requirement of the ﹪ of≤0.1 to total agglutination amount (CVCM) Gui.
About elemental oxygen (atom oxygen), research shows that high-altitude is other than ultra rays, ultraviolet irradiation, high-altitude also
There is the elemental oxygen group of high flow capacity, elemental oxygen generates erosion to aircraft surface material, it is made seriously to degrade and destroy.?
Low-orbit satellite (LED) flying height, the impact energy that elemental oxygen group generates reach 5eV.Apply 0.0508mm's outside satellite
PI flies on low orbit, and only needing 5-7 angel, it is distributed into low orbit local environment entirely.
Summary of the invention
The purpose of the present invention is in view of the above shortcomings of the prior art, provide a kind of aerospace the light-duty high conductivity arc of resistance to string
Radiation resistant cable and its manufacturing process, the present invention use novel a variety of composite materials simultaneously, reach and meet aerospace cable counterweight
Amount, resistance to elemental oxygen, resistance to string arc, uvioresistant, resists high-energy irradiation, is fire-retardant, good mechanical properties wanting vacuum ease gas
It asks.
Technical scheme is as follows:
A kind of aerospace resistance to string arc radiation resistant cable of light-duty high conductivity, characterized in that the cable includes conductor and in conductor
Inner insulating layer, the external insulation layer set gradually outside, the conductor using several high conductivities without yellow gold press it is twisted and
At the inner insulating layer, which is that modified polyorganosiloxane-polyimide composite film is wrapped, to be formed, and the external insulation layer is by being modified X-
ETFE extrusion molding forms.
Preferably, the high conductivity is 19 without yellow gold, and diameter of the every high conductivity without yellow gold is
0.20mm。
Preferably, the modified polyorganosiloxane-polyimide composite film be 2 layers, every layer with a thickness of 0.03mm, it is wrapped
Duplication 50-54%.
Preferably, the modified X-ETFE is one layer, with a thickness of 0.13mm.
A kind of above-mentioned aerospace with light-duty high conductivity it is resistance to string arc radiation resistant cable manufacturing process, characterized in that including with
Lower step:
1) conductor is prepared:
The conductor uses 19 diameters to press for the high conductivity of 0.20mm without yellow gold and is twisted, press it is twisted so that
Conductive surface Glabrous thorn；
2) wrapped inner insulating layer:
Wrapped 2 layers modified polyorganosiloxane-polyimide composite film with a thickness of 0.03mm outside conductor forms inner insulating layer,
Wrapped Duplication 50-54%；Sintering furnace high temperature sintering is put into after inner insulating layer is wrapped, simultaneously by each wrapped interlayer air discharge
Form sealing；
3) extrusion molding external insulation layer:
While high temperature sintering, the modification X- that a layer thickness is 0.13mm is extruded in interior surface of insulating layer by way of extrusion molding
ETFE forms compound inslation；Finally cable is irradiated, finished product cable.
Preferably, in step 2, pass through suitable wrapping angle outside conductor and carry out wrapped, which is 45 °.
Preferably, in step 2, described 3 meters of sintering furnace superintendent, with 800 DEG C of high temperature sinterings.
Preferably, in step 3), cable is irradiated and is recombinated so that being modified X-ETFE molecular link, heatproof is reached
230 DEG C of requirement；Its molecular structure is reassembled as netted by linear molecule chain after modified X-ETFE irradiation, and intensity is up to 48Mpa.
Beneficial effects of the present invention are as follows:
A. conductor is pressed without yellow gold using 19 0.20mm HGLN-high conductivities and is twisted, and is pressed twisted so that leading
Glabrous thorn in body surface face prevents shelf depreciation or electric arc from generating.
Using HGLN-high conductivity without yellow gold, resistivity is down to 0.01622 Ω mm2/m；Conductivity stabilization reaches
To 106.3%(IACS), the conductivity than copper material improves at 4-5 100 points, greatly improves the current-carrying capacity of cable, realize small
The effect of segmental conductor transmission high current.
Simultaneously cable is thinned, has been greatly saved wiring space and has alleviated cable weight, in identical current-carrying capacity
In the case of, about 10% or more is alleviated than traditional copper conductor weight.
B. inner insulating layer uses modified polysiloxane-polyimide laminated film (PI-PDMS-PI), embodiment party
Formula be outside conductor by suitable wrapping angle (45 °) and accurate tension force and wrapped 2 layers of pitch control system with a thickness of
0.03mm modified polyorganosiloxane-polyimide composite film (PI-PDMS-PI), wrapped Duplication 52% ± 2.Then 3 meters are used
Long sintering furnace is with 800 DEG C of high temperature sinterings, by being discharged after sintering by each wrapped interlayer air and forming sealing.
Modified polyorganosiloxane-the polyimide composite film (PI-PDMS-PI) has inorganic silicon and polyimides superior
Heat-resisting quantity and heat resistance, while overcome again polyimides easily by atomic oxygen erosion the shortcomings that, the pure resistance to atom of polyimides
Oxygen attack rate: when atom kinetic energy 4.5ev, 3.0*10-24 cm3The resistance to atomic oxygen erosion rate of/atcm, PI-PDMS-PI: atom is dynamic
When energy 4.5ev, 0.05*10-24 cm3/atcm。
C. pass through the side of extrusion molding while modified polysiloxane-polyimide laminated film (PI-PDMS-PI) sintering
Formula extrudes the modification X-ETFE that a layer thickness is 0.13mm on the modified surface PI-PDMS-PI and forms compound inslation, then passes through
" epidermis irradiation " technology, controls the voltage and dosage of accelerated particle, cable is irradiated so that modified X-ETFE molecular link into
Row recombination, reaches 230 DEG C of heatproof of requirement.It is using the reason of structure, it is good that X-ETFE is provided simultaneously with FEP PFA PTFE
Anti-flammability, oxygen index (OI) improves the materials such as FEP, PFA, PTFE used in traditional aerospace cable not radiation resistance up to 70%
And polyimide material easily causes the shortcomings that string arc.
Its molecular structure is reassembled as netted by linear molecule chain after X-ETFE irradiation, intensity up to 48Mpa, much larger than FEP,
The mechanical strength of PFA, PTFE greatly improve the mechanical performance of electric wire.X-ETFE density of material is only 1.18g/cm3, than passing
It unites FEP PFA PTFE material weight saving 50% or more, the X-ETFE is even in 5*109 Make for a long time under rads exposure intensity
With can still keep good mechanical performance, the service life was up to 50 years or more.The double-layer insulating structure is spread through organized within electric arc
Due to the approach of thermal degradation production charcoal in journey, to prevent the generation of string arc phenomenon.
The aerospace produced by the present invention resistance to string arc radiation resistant cable of light-duty high conductivity, it is severe to can adapt to aerospace vehicle etc.
It carves and works under environment, there is excellent electrical property, mechanical performance, high and low temperature resistance, mechanical property, radiation-resistant property, resistance to original
Sub- oxygen performance, vacuum outgas etc. can be used for a long time within the scope of (- 100~+230) DEG C.
Detailed description of the invention
Fig. 1 is the aerospace of the present invention resistance to string arc radiation resistant cable structural schematic diagram of light-duty high conductivity；
In figure: 1 conductor, 2 inner insulating layers, 3 external insulation layers.
Specific embodiment
As shown, a kind of aerospace resistance to string arc radiation resistant cable of light-duty high conductivity, including conductor 1, inner insulating layer 2,
External insulation layer 3.
The manufacturing process of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity, comprising the following steps:
1) conductor is prepared:
The conductor uses 19 diameters to press for the high conductivity of 0.20mm without yellow gold and is twisted, press it is twisted so that
Conductive surface Glabrous thorn；
2) wrapped inner insulating layer:
Pass through modified polyorganosiloxane-polyimides of wrapped 2 layers of the suitable wrapping angle (45 °) with a thickness of 0.03mm outside conductor
Laminated film forms inner insulating layer, wrapped Duplication 50-54%；Be put into after inner insulating layer is wrapped 3 meters of long sintering furnaces with
Each wrapped interlayer air is discharged and forms sealing by 800 DEG C of high temperature sinterings；
3) extrusion molding external insulation layer:
While high temperature sintering, the modification X- that a layer thickness is 0.13mm is extruded in interior surface of insulating layer by way of extrusion molding
ETFE forms compound inslation；Finally cable is irradiated, finished product cable.
Cable is irradiated and is recombinated so that being modified X-ETFE molecular link, 230 DEG C of heatproof of requirement is reached；Modified X-
Its molecular structure is reassembled as netted by linear molecule chain after ETFE irradiation, and intensity is up to 48Mpa.
Cable produced by the present invention, cable performance indexes:
The tolerance 1. vacuum is always escaped:
The ﹪ of TML≤0.3, vacuum degree 10-6mmHg ；
The ﹪ of TML≤0.4, vacuum degree 10-12mmHg ；
The ﹪ of TML≤0.6, vacuum degree 10-14mmHg 。
2. the total agglutination amount of volatile substance:
The ﹪ of CVCM≤0.03, vacuum degree 10-6mmHg；
The ﹪ of CVCM≤0.05, vacuum degree 10-12mmHg ；
The ﹪ of CVCM≤0.08, vacuum degree 10-14mmHg 。
3. voltage rating: 600V.
4. operating temperature: -100 DEG C -230 DEG C.
5. radiation resistance intensity: 5*109 rads。
6. resistance to atomic oxygen erosion rate: 4.5ev, 0.05*10-24 cm3/atcm 。
7. combustibility: for fiery time 30S, prolonging combustion Shi Jian≤3s, prolong the Chang Du≤70mm of combustion.
8. dynamic is cut through: at 200 DEG C, average dynamic cuts through power >=9.1kg.
9. insulation shrinkage: 230 DEG C of * 6h, Shou Suo≤2s.
10. smoldering: 230 DEG C of * 15min, no visible smoke.
11. being adhered: 230 DEG C of * 6h, electric wire is without being adhered.
12. moisture-proof electric arc:
7 0.35m long electric wires, which bind together, forms 1 harness, is tested using 15 harness, and wherein at least 80 electric wires are logical
2.5KV*1min pressure test is crossed, at least 4 electric wires pass through 2.5KV*1min pressure test, any harness in each harness
In, practical damage Ju Li≤50mm of electric wire.
13. resistance to dry electric arc:
7 0.35m long electric wires, which bind together, forms 1 harness, is tested using 15 harness, wherein at least 80 electric wires
By 2.5KV*1min pressure test, at least 4 electric wires pass through 2.5KV*1min pressure test, any harness in each harness
In, practical damage Ju Li≤50mm of electric wire.
14. heat number: 10000h≤230 DEG C.
15. insulation resistance: 1524 M Ω * Km.
16. voltage-withstand test: 2500V*5min does not puncture.
Claims (8)
1. a kind of aerospace resistance to string arc radiation resistant cable of light-duty high conductivity, characterized in that the cable includes conductor and leading
Inner insulating layer, the external insulation layer set gradually in vitro, the conductor are pressed using several high conductivities without yellow gold twisted
It forms, the inner insulating layer, which is that modified polyorganosiloxane-polyimide composite film is wrapped, to be formed, and the external insulation layer is by being modified X-
ETFE extrusion molding forms.
2. a kind of aerospace according to claim 1 resistance to string arc radiation resistant cable of light-duty high conductivity, characterized in that described
High conductivity is 19 without yellow gold, and diameter of the every high conductivity without yellow gold is 0.20mm.
3. a kind of aerospace according to claim 1 resistance to string arc radiation resistant cable of light-duty high conductivity, characterized in that described
Modified polyorganosiloxane-polyimide composite film be 2 layers, every layer with a thickness of 0.03mm, wrapped Duplication 50-54%.
4. a kind of aerospace according to claim 1 resistance to string arc radiation resistant cable of light-duty high conductivity, characterized in that described
Modified X-ETFE is one layer, with a thickness of 0.13mm.
5. a kind of system of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity described in any one of -4 according to claim 1
Make technique, characterized in that the following steps are included:
1) conductor is prepared:
The conductor uses 19 diameters to press for the high conductivity of 0.20mm without yellow gold and is twisted, press it is twisted so that
Conductive surface Glabrous thorn；
2) wrapped inner insulating layer:
Wrapped 2 layers modified polyorganosiloxane-polyimide composite film with a thickness of 0.03mm outside conductor forms inner insulating layer,
Wrapped Duplication 50-54%；Sintering furnace high temperature sintering is put into after inner insulating layer is wrapped, simultaneously by each wrapped interlayer air discharge
Form sealing；
3) extrusion molding external insulation layer:
While high temperature sintering, the modification X- that a layer thickness is 0.13mm is extruded in interior surface of insulating layer by way of extrusion molding
ETFE forms compound inslation；Finally cable is irradiated, finished product cable.
6. a kind of aerospace according to claim 5 manufacturing process of the resistance to string arc radiation resistant cable of light-duty high conductivity,
It is characterized in, in step 2, passes through suitable wrapping angle outside conductor and carry out wrapped, which is 45 °.
7. a kind of aerospace according to claim 5 manufacturing process of the resistance to string arc radiation resistant cable of light-duty high conductivity,
It is characterized in, in step 2, described 3 meters of sintering furnace superintendent, with 800 DEG C of high temperature sinterings.
8. a kind of aerospace according to claim 5 manufacturing process of the resistance to string arc radiation resistant cable of light-duty high conductivity,
It is characterized in, in step 3), cable is irradiated so that modified X-ETFE molecular link recombinates, reaches 230 DEG C of heatproof and want
It asks；Its molecular structure is reassembled as netted by linear molecule chain after modified X-ETFE irradiation, and intensity is up to 48Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474939.4A CN110148489A (en) | 2019-06-03 | 2019-06-03 | A kind of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474939.4A CN110148489A (en) | 2019-06-03 | 2019-06-03 | A kind of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity and its manufacturing process |
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| Publication Number | Publication Date |
|---|---|
| CN110148489A true CN110148489A (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910474939.4A Pending CN110148489A (en) | 2019-06-03 | 2019-06-03 | A kind of the aerospace resistance to string arc radiation resistant cable of light-duty high conductivity and its manufacturing process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488224A (en) * | 2021-06-16 | 2021-10-08 | 上海申茂电磁线有限公司 | PEEK crowded package polyimide film is around chartered line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786057A (en) * | 2005-11-26 | 2006-06-14 | 吉林大学 | Preparation method of polyimide siloxanel polyimide two face different property composite film |
| CN101889316A (en) * | 2007-12-07 | 2010-11-17 | 尼克桑斯公司 | Arc resistant and smooth wire |
| CN202796107U (en) * | 2012-07-25 | 2013-03-13 | 四川九洲线缆有限责任公司 | Composite mounting wire for aviation and aerospace |
| CN108538463A (en) * | 2018-04-25 | 2018-09-14 | 芜湖航天特种电缆厂股份有限公司 | Aerospace ultralight high-strength conductor and preparation method thereof |
-
2019
- 2019-06-03 CN CN201910474939.4A patent/CN110148489A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786057A (en) * | 2005-11-26 | 2006-06-14 | 吉林大学 | Preparation method of polyimide siloxanel polyimide two face different property composite film |
| CN101889316A (en) * | 2007-12-07 | 2010-11-17 | 尼克桑斯公司 | Arc resistant and smooth wire |
| CN202796107U (en) * | 2012-07-25 | 2013-03-13 | 四川九洲线缆有限责任公司 | Composite mounting wire for aviation and aerospace |
| CN108538463A (en) * | 2018-04-25 | 2018-09-14 | 芜湖航天特种电缆厂股份有限公司 | Aerospace ultralight high-strength conductor and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488224A (en) * | 2021-06-16 | 2021-10-08 | 上海申茂电磁线有限公司 | PEEK crowded package polyimide film is around chartered line |
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