CN201417634Y - Foam PTFE insulated cable - Google Patents
Foam PTFE insulated cable Download PDFInfo
- Publication number
- CN201417634Y CN201417634Y CN2009200765760U CN200920076576U CN201417634Y CN 201417634 Y CN201417634 Y CN 201417634Y CN 2009200765760 U CN2009200765760 U CN 2009200765760U CN 200920076576 U CN200920076576 U CN 200920076576U CN 201417634 Y CN201417634 Y CN 201417634Y
- Authority
- CN
- China
- Prior art keywords
- cable
- insulated cable
- ptfe
- foam
- foam ptfe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a foam PTFE insulated cable which comprises a cored wire, a shielding wire and a shield sleeve, wherein the section of the cored wire is arranged in a concentric circle mode. The foam PTFE insulated cable is characterized in that a sintered and formed foam PTFE insulated layer is arranged between the cored wire and the shielding wire, and the shield sleeve is arranged outside the shielding wire. The foam PTFE insulated cable has the advantages of simple structure and convenient making. Foamed PTFE is used for insulating to make the cable insulated layer after beingsintered and foamed form micropores. The insulated layer after being sintered has the advantages of good machine capacity and high tensile strength, and greatly satisfies requirements for transportingcables in the fields of modern communication, military affairs, etc.
Description
Technical field
The utility model relates to the cables manufacturing technical field, specifically a kind of expanded polytetrafluoroethyl(ne insulated cable.
Background technology
Modern communications, requirement to transmission cable in the fields such as military affairs is more and more higher, the frequency of transmission is also more and more higher, reach the frequency of tens GHz, especially in military field, phase stability there is very high requirement, and all these requirements are had higher requirement to dielectric, the dielectric that can satisfy these requirements has only polytetrafluoroethylene (PTFE), its DIELECTRIC CONSTANT is all littler than other medium, behind the common sintering is about 2.05～2.1, unsintered about 1.7, current more external companies utilize these less characteristics of unsintered polytetrafluoroethylene (PTFE) DIELECTRIC CONSTANT to make cable, and it makes outer conductor and sheath outside unsintered polytetrafluoroethylene (PTFE) insulation heart yearn.Another kind method is to twine from level to level in the conductor with the PTFE film band through punching to make the insulation heart yearn.Above technology all has very high requirement to equipment and process for making, manufacture difficulty is big, and there is not mechanical strength to say basically without the polytetrafluoroethylene (PTFE) of sintering, it is yielding in use to be subjected to factors such as external force or bending, cause the reduction of electrical property, cause the distortion of transmission signals, had a strong impact on the quality of signal transmission, though and polytetrafluoroethylene (PTFE) mechanical performance and tensile strength behind the sintering have improved, but the also corresponding increase of DIELECTRIC CONSTANT can not be satisfied modern communications, require lower transmission cable to need to some DIELECTRIC CONSTANT in the fields such as military affairs.
Summary of the invention
The purpose of this utility model is a kind of expanded polytetrafluoroethyl(ne insulated cable that provides at the deficiencies in the prior art, it can be reduced to 1.45 with DIELECTRIC CONSTANT, and the good mechanical property of insulating barrier, the tensile strength height, satisfied greatly in the fields such as modern communications, military affairs some DIELECTRIC CONSTANT have been required lower transmission cable needs, and can require to change foam degrees according to difference, obtain corresponding DIELECTRIC CONSTANT value.
The purpose of this utility model is achieved in that a kind of expanded polytetrafluoroethyl(ne insulated cable, comprise that the cross section is heart yearn, shielding conductor, sheath that concentric circles is provided with, characteristics are the expanded polytetrafluoroethyl(ne insulating barriers that are provided with sinter molding between heart yearn and shielding conductor, and shielding conductor is provided with sheath outward.
Described expanded polytetrafluoroethyl(ne insulating barrier is through extruding, making after the sinter molding.
The utility model is simple in structure, easy to make, the micropore that it forms by cable insulation after the sinter molding is to reduce DIELECTRIC CONSTANT, polytetrafluoroethylene through foaming can be reduced to DIELECTRIC CONSTANT about 1.45, and can require to make corresponding DIELECTRIC CONSTANT value according to different cables, insulating barrier good mechanical property behind the sintering, the tensile strength height has satisfied greatly in the fields such as modern communications, military affairs that some DIELECTRIC CONSTANT are required lower transmission cable needs.
Description of drawings
Accompanying drawing 1 is the utility model structural representation
Embodiment
Embodiment 1
Consult accompanying drawing 1, the utility model comprises that the cross section is heart yearn 1, shielding conductor 2, sheath 4 that concentric circles is provided with, is provided with the expanded polytetrafluoroethyl(ne insulating barrier 3 of sinter molding at heart yearn 1 and 2 of shielding conductors, and shielding conductor 2 is provided with sheaths 4 outward.
The utility model is such processing and fabricating: the polytetrafluoroethylene finish mix rod of foaming is together sent into the cable extruder with heart yearn 1, through extruding, having expanded polytetrafluoroethyl(ne insulating barrier 3 for the outer coating of heart yearn 1 after the sinter molding, foaming insulation layer 3 with micropore, good mechanical property, the tensile strength height, the appearance that is wrapped in expanded polytetrafluoroethyl(ne insulating barrier 3 with silver-plated copper strips is made shielding conductor 2 then, coats the sheath 4 of last layer PVF (FEP) by the cable extruder uniformly outside shielding conductor 2 at last and the cable that makes.
Claims (2)
1, a kind of expanded polytetrafluoroethyl(ne insulated cable, comprise that the cross section is heart yearn (1), shielding conductor (2), sheath (4) that concentric circles is provided with, it is characterized in that being provided with between heart yearn (1) and shielding conductor (2) the expanded polytetrafluoroethyl(ne insulating barrier (3) of sinter molding, the outer sheath (4) that is provided with of shielding conductor (2).
2,, it is characterized in that described expanded polytetrafluoroethyl(ne insulating barrier (3) is through extruding, making after the sinter molding according to the described expanded polytetrafluoroethyl(ne insulated cable of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200765760U CN201417634Y (en) | 2009-06-18 | 2009-06-18 | Foam PTFE insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200765760U CN201417634Y (en) | 2009-06-18 | 2009-06-18 | Foam PTFE insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417634Y true CN201417634Y (en) | 2010-03-03 |
Family
ID=41794059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200765760U Expired - Fee Related CN201417634Y (en) | 2009-06-18 | 2009-06-18 | Foam PTFE insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201417634Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385964A (en) * | 2011-08-10 | 2012-03-21 | 东莞市蓝姆材料科技有限公司 | PTFE (Polytetrafluoroethylene) thin tape for cable and preparation method thereof |
| CN104795160A (en) * | 2015-04-14 | 2015-07-22 | 安徽华通电缆集团有限公司 | High-temperature fire-resisting cable for airplane engine compartments and engines |
| CN107424680A (en) * | 2017-08-07 | 2017-12-01 | 深圳微波通线缆有限公司 | Semi-rigid cable and preparation method |
| CN110648803A (en) * | 2019-09-24 | 2020-01-03 | 邰国芳 | Preparation method of automobile oxygen sensor wire |
-
2009
- 2009-06-18 CN CN2009200765760U patent/CN201417634Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385964A (en) * | 2011-08-10 | 2012-03-21 | 东莞市蓝姆材料科技有限公司 | PTFE (Polytetrafluoroethylene) thin tape for cable and preparation method thereof |
| CN102385964B (en) * | 2011-08-10 | 2013-09-11 | 东莞市蓝姆材料科技有限公司 | PTFE (Polytetrafluoroethylene) thin tape for cable and preparation method thereof |
| CN104795160A (en) * | 2015-04-14 | 2015-07-22 | 安徽华通电缆集团有限公司 | High-temperature fire-resisting cable for airplane engine compartments and engines |
| CN107424680A (en) * | 2017-08-07 | 2017-12-01 | 深圳微波通线缆有限公司 | Semi-rigid cable and preparation method |
| CN110648803A (en) * | 2019-09-24 | 2020-01-03 | 邰国芳 | Preparation method of automobile oxygen sensor wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20150618 |
|
| EXPY | Termination of patent right or utility model |