CN107424680A - Semi-rigid cable and preparation method - Google Patents
Semi-rigid cable and preparation method Download PDFInfo
- Publication number
- CN107424680A CN107424680A CN201710666726.2A CN201710666726A CN107424680A CN 107424680 A CN107424680 A CN 107424680A CN 201710666726 A CN201710666726 A CN 201710666726A CN 107424680 A CN107424680 A CN 107424680A
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- stainless steel
- silver
- conductor layer
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- steel tube
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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
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1808—Construction of the conductors
-
- 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
- H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention relates to a kind of semi-rigid cable and preparation method, the semi-rigid cable includes inner conductor layer, insulating barrier and the outer conductor layer being coaxially disposed successively from the inside to the outside, wherein, the inner conductor layer is stainless steel wire or silver-plated stainless steel wire, and the outer conductor layer is stainless steel tube or silver-plated stainless steel tube.For the present invention because inner conductor layer is stainless steel wire or silver-plated stainless steel wire, outer conductor layer is stainless steel tube or silver-plated stainless steel tube, not only reduces loss of the signal in transmitting procedure, and performance is more stable compared with prior art.The frequency of use and temperature range of semi-rigid cable are improved, avoids and triggers wire rod to be come off with connector because local temperature rise is too high, the problems such as signal interruption, so as to improve safety in utilization, space exploration can be met, the demand of the special industry such as spaceborne.
Description
Technical field
The present invention relates to technical field of communication cables, more particularly to a kind of semi-rigid cable and preparation method.
Background technology
With the fast development of mechanics of communication, half just coaxial cable communication, navigation, electronic countermeasure, measuring and controlling equipment and
Spaceborne, missile-borne, airborne, carrier-borne, vehicle-mounted etc. are also more and more extensive using the application in the Transmission system of radiofrequency signal.Simultaneously to line
The performance indications of cable also require more and more higher, it is desirable to which lower and stable performance is lost in signal in transmitting procedure.By use environment
Limitation, it is desirable to semi-rigid cable has wide frequency of use and temperature range.The use temperature range of usual semi-rigid cable is -55
~+125 DEG C.
Usually, the structure of coaxial cable is followed successively by inner wire, insulator, outer conductor from inside to outside.At present, domestic tradition
The inner wire of half just coaxial cable be silver-coated copper wire or silver-copper plated steel clad wire, outer conductor is naked copper pipe, tin-plated copper tubes, plates ternary
Alloy copper pipe, nickel plated copper pipe, aluminum pipe etc..
Copper has a wide range of applications because it has good electrical property and heat-conductive characteristic as cable conductor.At 20 DEG C
When, the thermal conductivity of copper is 397w/mk, i.e., 397w/m DEG C, but its good heat-conductive characteristic is led in the application such as spaceborne, missile-borne
It is too high that domain easily causes local temperature rise, so as to trigger wire rod to be come off with connector, a series of problems, such as signal interruption, easily triggers weight
Major break down.
Thus, it is necessary to a kind of low thermal conductivity material is proposed, to avoid triggering wire rod with being connected because local temperature rise is too high
Device comes off, and the problems such as signal interruption, improves the solution of safety in utilization.
The content of the invention
The present invention proposes a kind of half firm coaxial cable and preparation method, it is intended to overcomes in the prior art due to pyroconductivity height
And cause cable local temperature rise too high, and trigger wire rod to be come off with connector, it is safe to use so as to improve the problems such as signal interruption
Property.
To achieve the above object, the present invention is achieved in that the present invention proposes a kind of semi-rigid cable, the semi-rigid cable by
It is interior to including the inner conductor layer, insulating barrier and the outer conductor layer that are coaxially disposed successively outside, wherein, the inner conductor layer is stainless steel wire
Or silver-plated stainless steel wire, the outer conductor layer are stainless steel tube or silver-plated stainless steel tube.
The further technical scheme of the present invention is that the making material of the insulating barrier is polytetrafluoroethylene (PTFE).
The present invention also proposes a kind of semi-rigid cable preparation method, and this method is applied to semi-rigid cable as described above, described
Method includes step：
Adding assistant is well mixed after polytetrafluoroethylene (PTFE) is freezed, and well mixed mixture is cured；
Polytetrafluoroethylene (PTFE) after curing is pressed into idiosome by preforming bucket；
The idiosome is equably wrapped and forms insulator in the conductor；
The insulator is sintered, obtains polytetrafluoroethylene (PTFE) cored wire；
The polytetrafluoroethylene (PTFE) cored wire is passed through into stainless steel tube or silver-plated stainless steel tube, passes through sizing film stretching so that institute
State stainless steel tube or silver-plated stainless steel tube is closely attached to the polytetrafluoroethylene (PTFE) cored wire surface.
The beneficial effects of the invention are as follows：Inner conductor layer of the present invention is stainless steel wire or silver-plated stainless steel wire, outer conductor layer are
Stainless steel tube or silver-plated stainless steel tube, loss of the signal in transmitting procedure is not only reduced, and performance is compared with prior art
It is more stable.Improve the frequency of use and temperature range of semi-rigid cable, avoid due to local temperature rise it is too high trigger wire rod with
Connector comes off, and the problems such as signal interruption, so as to improve safety in utilization, can meet space exploration, the special industry such as spaceborne
Demand.
Brief description of the drawings
Fig. 1 is the structural representation of the proposed by the present invention half just preferred embodiment of coaxial cable；
Fig. 2 is the schematic flow sheet of semi-rigid cable preparation method preferred embodiment proposed by the present invention.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention primary solutions be：Semi-rigid cable proposed by the present invention includes what is be coaxially disposed successively from the inside to the outside
Inner conductor layer, insulating barrier and outer conductor layer, wherein, the inner conductor layer uses stainless steel wire or silver-plated stainless steel wire, described outer
Conductor layer uses stainless steel tube or silver-plated stainless steel tube.
At present, the inner wire of half just coaxial cable be silver-coated copper wire or silver-copper plated steel clad wire, and outer conductor is naked copper pipe, tin plating
Copper pipe, plating ternary alloy three-partalloy copper pipe, nickel plated copper pipe, aluminum pipe etc., copper have good an electrical property and heat-conductive characteristic, but it is good
For heat-conductive characteristic spaceborne, it is too high that the application field such as missile-borne easily causes local temperature rise, so as to trigger wire rod to be come off with connector, letter
Number interrupt a series of problems, such as, easily trigger major accident.
Thus, the present invention proposes a kind of good electrical property, but thermal conductivity is small, is avoided that due to the too high initiation wire rod of local temperature rise
Come off with connector, the problems such as signal interruption, so as to improve the semi-rigid cable of safety in utilization and preparation method.
Specifically, Fig. 1 is refer to, Fig. 1 is the structural representation of the proposed by the present invention half just preferred embodiment of coaxial cable
Figure.
The half firm coaxial cable that the present embodiment proposes includes inner conductor layer 10, the insulating barrier being coaxially disposed successively from the inside to the outside
20 and outer conductor layer 30, wherein, inner conductor layer 10 is stainless steel wire or silver-plated stainless steel wire, outer conductor layer 30 be stainless steel tube or
Silver-plated stainless steel tube, the making material of insulating barrier 20 can use polytetrafluoroethylene (PTFE).
Stainless steel has good corrosion resistance, heat resistance, low temperature intensity and mechanical property；The hot-workabilities such as punching press, bending
Well, the characteristics of no heat treatment hardening phenomenon.It is -196 DEG C~+800 DEG C usually using temperature, it is resistance to by the stainless steel of specially treated
Reachable -300 DEG C~+1700 DEG C of temperature, thermal conductivity is small, is 16.3w/mk at 100 DEG C, is 21.5w/mk at 500 DEG C.
The present embodiment because inner conductor layer 10 is stainless steel wire or silver-plated stainless steel wire, outer conductor layer 30 be stainless steel tube or
Silver-plated stainless steel tube, loss of the signal in transmitting procedure is not only reduced, and performance is more stable compared with prior art.Carry
The high frequency of use and temperature range of semi-rigid cable, avoids and triggers wire rod to be come off with connector because local temperature rise is too high,
The problems such as signal interruption, so as to improve safety in utilization, space exploration can be met, the demand of the special industry such as spaceborne.
The present invention also proposes a kind of semi-rigid cable preparation method, and this method is applied to above-mentioned semi-rigid cable, wherein, half is just electric
The structure of cable has illustrated, repeats no more here.
Fig. 2 is refer to, Fig. 2 is the schematic flow sheet of semi-rigid cable preparation method preferred embodiment proposed by the present invention.Should
Method comprises the following steps：
Step S10, adding assistant is well mixed after polytetrafluoroethylene (PTFE) is freezed, and well mixed mixture is cured；
Step S20, the polytetrafluoroethylene (PTFE) after curing is pressed into idiosome by preforming bucket；
Step S30, the idiosome is equably wrapped and forms insulator in the conductor；
Step S40, the insulator is sintered, obtains polytetrafluoroethylene (PTFE) cored wire；
When it is implemented, the idiosome pressed is put into the pushing machine of extruding machine, draw-gear is opened after everything is ready, when
When the piston of pushing machine promotes, in the presence of shearing force, idiosome is equably wrapped by the mould with certain centrum for idiosome
Insulator is formed in the conductor, and under the drive of traction, insulator enters volatilization case and sintering furnace is sintered, so as to obtain
Polytetrafluoroethylene (PTFE) cored wire.
Step S50, the polytetrafluoroethylene (PTFE) cored wire is passed through into stainless steel tube or silver-plated stainless steel tube, drawn by sizing film
Stretch so that the stainless steel tube or silver-plated stainless steel tube are closely attached to the polytetrafluoroethylene (PTFE) cored wire surface.
It is understood that the polytetrafluoroethylene (PTFE) cored wire is passed through into stainless steel tube or silver-plated stainless steel tube, pass through sizing
Film stretching so that the stainless steel tube or silver-plated stainless steel tube are closely attached to the polytetrafluoroethylene (PTFE) cored wire surface, can reach
Required size, so as to ensure the impedance of cable and standing wave.
The semi-rigid cable produced using semi-rigid cable preparation method proposed by the present invention has fabulous wear-resisting, resistance to compression, anti-
Impact, corrosion-resistant, salt spray resistance, wet-hot aging performance.Operating temperature range reaches -273.15 DEG C~+260 DEG C, and low temperature can reach theory
On absolute zero.It can be widely used for spaceborne, missile-borne, the connection of airborne, carrier-borne, vehicle electronic device inside and interconnection and low temperature
Superconductor applications, wide variety of copper semi-rigid cable in replaceable various electronics systems, greatly improve cable anti-vibration,
Salt spray resistance, corrosion-resistant, high-low temperature resistant, antirust grade, it is obviously improved the reliability of electronic system.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, every utilization
Equivalent structure or the flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of semi-rigid cable, it is characterised in that the inner conductor layer that includes being coaxially disposed from the inside to the outside successively, insulating barrier and lead outside
Body layer, wherein, the inner conductor layer is stainless steel wire or silver-plated stainless steel wire, the outer conductor layer be stainless steel tube or it is silver-plated not
Become rusty steel pipe.
2. semi-rigid cable according to claim 1, it is characterised in that the making material of the insulating barrier is polytetrafluoroethyl-ne
Alkene.
3. a kind of semi-rigid cable preparation method, it is characterised in that it is just electric that methods described is applied to as claimed in claim 2 half
Cable, methods described include step：
Adding assistant is well mixed after polytetrafluoroethylene (PTFE) is freezed, and well mixed mixture is cured；
Polytetrafluoroethylene (PTFE) after curing is pressed into idiosome by preforming bucket；
The idiosome is equably wrapped and forms insulator in the conductor；
The insulator is sintered, obtains polytetrafluoroethylene (PTFE) cored wire；
The polytetrafluoroethylene (PTFE) cored wire is passed through into stainless steel tube or silver-plated stainless steel tube, passes through sizing film stretching so that it is described not
Rust steel pipe or silver-plated stainless steel tube are closely attached to the polytetrafluoroethylene (PTFE) cored wire surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666726.2A CN107424680A (en) | 2017-08-07 | 2017-08-07 | Semi-rigid cable and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666726.2A CN107424680A (en) | 2017-08-07 | 2017-08-07 | Semi-rigid cable and preparation method |
Publications (1)
| Publication Number | Publication Date |
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| CN107424680A true CN107424680A (en) | 2017-12-01 |
Family
ID=60436676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710666726.2A Pending CN107424680A (en) | 2017-08-07 | 2017-08-07 | Semi-rigid cable and preparation method |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637701A (en) * | 2018-10-29 | 2019-04-16 | 中天电力光缆有限公司 | A kind of wireless transmission antenna cable for connecting being suitable for oil gas subsurface environment and its manufacture craft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547750A (en) * | 2001-08-22 | 2004-11-17 | �ձ�������ʽ���� | Semi-rigid cable |
| CN201417634Y (en) * | 2009-06-18 | 2010-03-03 | 上海汉欣电线电缆有限公司 | Foam PTFE insulated cable |
| CN102412029A (en) * | 2011-12-28 | 2012-04-11 | 浙江天杰实业有限公司 | Processing process of semi-steel cable outer conductor |
| CN103236300A (en) * | 2013-01-05 | 2013-08-07 | 辽宁金环电缆有限公司 | Double-shielding cable for nuclear power |
| CN105845219A (en) * | 2016-06-01 | 2016-08-10 | 芜湖航飞科技股份有限公司 | Preparation method of polytetrafluoroethylene high-temperature resistant insulation coaxial cable |
-
2017
- 2017-08-07 CN CN201710666726.2A patent/CN107424680A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547750A (en) * | 2001-08-22 | 2004-11-17 | �ձ�������ʽ���� | Semi-rigid cable |
| CN201417634Y (en) * | 2009-06-18 | 2010-03-03 | 上海汉欣电线电缆有限公司 | Foam PTFE insulated cable |
| CN102412029A (en) * | 2011-12-28 | 2012-04-11 | 浙江天杰实业有限公司 | Processing process of semi-steel cable outer conductor |
| CN103236300A (en) * | 2013-01-05 | 2013-08-07 | 辽宁金环电缆有限公司 | Double-shielding cable for nuclear power |
| CN105845219A (en) * | 2016-06-01 | 2016-08-10 | 芜湖航飞科技股份有限公司 | Preparation method of polytetrafluoroethylene high-temperature resistant insulation coaxial cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637701A (en) * | 2018-10-29 | 2019-04-16 | 中天电力光缆有限公司 | A kind of wireless transmission antenna cable for connecting being suitable for oil gas subsurface environment and its manufacture craft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180608 Address after: 364000 Xinghang Road, Nangang industrial area, Shanghang Town, Shanghang, Longyan, Fujian Applicant after: Fujian Microwave Communication Technology Co., Ltd. Address before: 518000 B unit, 78 C2-3 building, fourth industrial area, Ma Shan community, Gongming street, Guangming New District, Shenzhen, Guangdong Applicant before: Shenzhen microwave line cable Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
|
| RJ01 | Rejection of invention patent application after publication |