CN101950627A - Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable - Google Patents
Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable Download PDFInfo
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- CN101950627A CN101950627A CN2010101939470A CN201010193947A CN101950627A CN 101950627 A CN101950627 A CN 101950627A CN 2010101939470 A CN2010101939470 A CN 2010101939470A CN 201010193947 A CN201010193947 A CN 201010193947A CN 101950627 A CN101950627 A CN 101950627A
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- coaxial cable
- nuclear radiation
- cable
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Abstract
The invention relates to the technical field of cables, in particular to an anti-nuclear radiation semi-flexible coaxial signal transmission cable which can operate within the temperature range of minus100 DEG C to +150 DEG C for a long time, and has the radiation intensity more than 1*106Gy. The cable comprises an inner conductor, an insulating layer, an outer conductor and a jacket layer, is mainly used for transmitting and detecting an equipment operation signal in the nuclear island of a nuclear power station, and is also used for nuclear submarines. The anti-nuclear radiation semi-flexible/semi-rigid coaxial cable of the invention is prepared by extruding an injection molding material, namely polysulfone (PSU) plastic on the common fluorine plastic extrusion production line through a YJTB technique comprising the following steps: PSU material preprocessing, extrusion auxiliary device designing, extrusion process parameter matching and optimization design, process temperature gradient screening and controlling, cooling speed controlling and the like.
Description
Technical field
The present invention relates to the cable technology field, (radiation hardness intensity is greater than 1x10 to refer in particular to a kind of anti-nuclear radiation
6Gy), but long-term work in half gentle coaxial signal transmission cable of-100～+ 150 ℃ of temperature ranges.
Background technology
Along with the fast development of China's nuclear power industry, quantity and kind demand with cable in the nuclear reactor are increasing; The development of war industry in addition, antagonism nuclear spoke cable has also proposed requirements at the higher level.
The used in nuclear power station nuclear island cable is mounted in the containment, realizes power transmission, operation control and the input of equipment operation in the nuclear island.This type of cable requires under the particular surroundings of operating mode after normally operation of nuclear reactor, accident conditions or the accident, and all can its specific function of complete execution under the seismic (seismal.Such cable also must have smokelessly, Halogen, high flame retardant, radiation hardness, characteristic such as heat-resisting.Therefore, existing traditional cable all can not satisfy this generic request.
Anti-nuclear radiation semi-flexible coaxial cable is mainly used in nuclear island of nuclear power station and the nuclear-powered submarine, is used for the transmission and the detection of signal.
The present invention is with a kind of injected plastics material-polysulfones (PSU) plastics, by YJTB technology (being PSU material preliminary treatment-extrude servicing unit design-expressing technique parameter matching and optimal design-technological temperature gradient screening control-cooling rate control etc.), on common fluoroplastics extruding production line, extrude anti-nuclear radiation half gentle/semihard coaxial cable.
Adopt the YJTB technology to have not change original high temperature production and extrude line, invest for a short time, production technology is easy, saves energy and reduce the cost, and product quality such as easily controls, stablizes at advantage.
Summary of the invention
The anti-nuclear radiation semi-flexible coaxial cable that adopts the YJTB technology to produce.Mainly comprise:
1. product structure design: product structure such as accompanying drawing 1.
Inner wire (1) adopts silver-gilt copper wire (SPC), bare copper wire (TPC);
Insulating barrier (2) adopts polysulfones (PSU);
Outer conductor (3) adopts silver-gilt copper wire (SPC)/copper pipe;
Restrictive coating (4) adopts polysulfones (PSU)/polyether-ether-ketone (PEEK)
2. will annotate north type polysulfones (PSU) by the YJTB technology extrudes on the conductor.
Half gentle/anti-nuclear radiation the coaxial cable of semihard that adopts above technology to produce, its canonical parameter is as follows:
(1). cable properties impedance: 35 Ω～100 Ω;
(2). serviceability temperature :-100 ℃～150 ℃;
(3). voltage test: insulation, power frequency, interchange 50Hz
50 Ω: 1700V/5min does not puncture.
75 Ω: 3600V/5min does not puncture.
(4). insulating resistance of cable: be not less than 5000M.Km.
(5). the cable attenuation constant is not more than:
30MHz 200MHz 3000MHz
50Ω 0.085dB/m 0.28dB/m 1.35dB/m
75Ω 0.057dB/m 0.15dB/m 0.66dB/m
(6). cable radiation hardness intensity:＞10
6Gy;
(7). anti-flammability: reach the UL94 standard, the requirement of V-0 level.
(8). smoke density: Dm＜200;
(9). 105MPa during 23 ℃ of tensile strength: ISO 527 standards;
46MPa during 150 ℃ of ISO 527 standards
Description of drawings
The present invention is further described below in conjunction with accompanying drawing:
Accompanying drawing is a wire structure schematic diagram of the present invention.
The explanation of accompanying drawing figure number
Inner wire (1) insulating barrier (2)
Outer conductor (3) restrictive coating (4)
Embodiment
See accompanying drawing 1.
Cable of the present invention comprises inner wire, insulating barrier, outer conductor, sheath.
Insulating barrier (2) is gone up braiding/coating outer conductor (3); Outer conductor (3) extrudes polysulfones/polyether-ether-ketone restrictive coating (4) on as required.
Inner wire (1) silver-gilt copper wire (SPC), bare copper wire (TPC);
Insulating barrier (2) adopts polysulfone plastic (PSU);
Outer conductor (3) silver-gilt copper wire (SPC)/copper pipe (TPP);
Restrictive coating (4) adopts polysulfones (PSU)/poly ether ether ketone plastic (PEEK).
Claims (4)
1. anti-nuclear radiation half gentle/semihard coaxial cable, it is characterized in that: extrude the polysulfone plastic insulating barrier by the YJTB technology on the inner wire, insulating barrier weaves or coats outer conductor outward, extrudes polysulfone plastic or poly ether ether ketone plastic restrictive coating on the outer conductor.
2. anti-nuclear radiation according to claim 1 half gentle/semihard coaxial cable is characterized in that: extrude the polysulfone plastic insulating barrier by the YJTB technology on the inner wire;
3. anti-nuclear radiation according to claim 1 and 2 half gentle/semihard coaxial cable, it is characterized in that: insulating barrier weaves or coats outer conductor outward;
4. according to claim 1 or 2 or 3 described anti-nuclear radiation, half gentle/semihard coaxial cable, it is characterized in that: extrude polysulfone plastic or poly ether ether ketone plastic restrictive coating on the outer conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101939470A CN101950627A (en) | 2010-06-04 | 2010-06-04 | Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101939470A CN101950627A (en) | 2010-06-04 | 2010-06-04 | Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101950627A true CN101950627A (en) | 2011-01-19 |
Family
ID=43454079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101939470A Pending CN101950627A (en) | 2010-06-04 | 2010-06-04 | Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101950627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930925A (en) * | 2012-10-31 | 2013-02-13 | 江苏永鼎电气有限公司 | Low-cost intense radiation resistant low-noise cable |
-
2010
- 2010-06-04 CN CN2010101939470A patent/CN101950627A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930925A (en) * | 2012-10-31 | 2013-02-13 | 江苏永鼎电气有限公司 | Low-cost intense radiation resistant low-noise cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai SECRI Special Cable Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Shanghai SECRI Special Cable Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110119 |