CN1073740C - Film-shielding control caples and their manufacture - Google Patents
Film-shielding control caples and their manufacture Download PDFInfo
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- CN1073740C CN1073740C CN94119090A CN94119090A CN1073740C CN 1073740 C CN1073740 C CN 1073740C CN 94119090 A CN94119090 A CN 94119090A CN 94119090 A CN94119090 A CN 94119090A CN 1073740 C CN1073740 C CN 1073740C
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- insulating barrier
- layer
- copper
- film
- silver
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- Insulated Conductors (AREA)
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Abstract
The present invention relates to a film-shielding control cable and a manufacture technology thereof. The cable has the structure that a tinning cooper stranded wire core is used as a conductive body, radiation cross-linking high-pressure polyethylene is used as an insulating layer, and a silver and copper filming is used as an outer conductive body. The present invention has the technological flow path that the surface of the insulating layer is heated for coarsening, electronic radiation cross-linking processing is carried out after coarsening, a silver film layer and a copper film layer are plated on the processed insulating layer, and finally, soft PVC is used as a sheath. The film-shielding control cable has the capability of electromagnetic interference resistance, basically eliminates electric noise and mechanical noise, reduces attenuation constants, increases the distance of signal transmission, improves thermotolerant grades and enlarges flame-retarding performance, and the present invention has the advantages of small cable and light weight.
Description
The present invention relates to a kind of film-shielding control caples and manufacturing process thereof, this cable is mainly used in space launch vehicle, rocket, guided missile and satellite control system.
It is inner wire that current domestic and international cable adopts with the copper stranded conductor core more, natural silk is wrapped, PVC insulation and copper wire are woven to the shielding of outer conductor cable are installed, it is low that this cable exists shield effectiveness, attenuation constant is big, electrical noise and mechanic sound are big, radiation resistance is poor, the deficiency that flame-retarding power is short, and the heavy volume of quality is big, and in order to change cable performance and structure, the manufacturer that has at present structurally adopts the metal composite coating to make screen such as United States Patent (USP) " metallic sheath shielding material and manufacturing " its patent No.: us005171937A, or metallic diaphragm makes screen, and as its patent No. of Japan Patent " distributing board coaxial cable ": the spy opens flat 5-81938.
The object of the present invention is to provide a kind of shield effectiveness height, it is little to decay, and noise is little, radiation hardness, light weight, film-shielding control caples that volume is little and manufacturing process thereof.
The object of the present invention is achieved like this, it is conductor that cable adopts tin-coated copper twisted wire core, by heatproof, radiation-resistant polyethylene from high pressure process is an insulating barrier, the silver-bearing copper plated film is the structure of outer conductor, its manufacture method divided for four steps finished, the first step is with high pressure polyethylene insulated laminar surface heating alligatoring, to improve the affinity of surface of insulating layer, second step was that the insulating barrier after the alligatoring is carried out electron radiation, thereby improve the radiation resistance and the flame-retarding power of insulating barrier, the 3rd step was that the surface of insulating layer after processing is electroplated silver layer, and the 4th step was a copper electroplating layer, adopted the sheath of soft type PVC as shielded type cable at last.
The present invention is owing to adopted said structure and technology, thereby improved the anti-electromagnetic field interference capability of cable, substantially eliminate electrical noise and machinery noise, reduced attenuation constant, increased signal transmission distance, improved temperature resistant grade, enlarged flame-retarding power, thoroughly eliminated the copper wire short circuit phenomenon, cable weight decline 40-50%, volume-diminished 1/5 has reduced cost.
Provide the structure chart and the specific embodiment of film-shielding control caples below.
Fig. 1: be single core film-shielding control caples structure chart.
Fig. 2: for multicore is total to the flat film-shielding control caples structure chart of sheath.
Wherein:
1, tin-coated copper twisted wire core; 2, radioresistance, flame-retarding power interlinkage insulating barrier;
3, silver layer screened film; 4, silver-bearing copper layer screened film;
5, soft type PVC sheath; 6, ground wire.
The construction of cable as shown in Figure 1 and Figure 2, can make single-core cable and multicore cable, multicore cable can reach 108 cores, tin-coated copper twisted wire core (1) is a conductor, radiation interlinkage polyethylene from high pressure process is insulating barrier (2), silver coating (3), silver-bearing copper plated film (4) are outer conductor, flexibility PVC is sheath (5), at first insulating barrier (2) is placed in conductor (1), under 185 ℃ of hot conditionss the layer of polyethylene powder is coated on insulating barrier (2) surface again, again after 200 ℃ of high-temperature process, by 80 ℃, 70 ℃, 60 ℃, 40c divides the water-saving groove cooling to reach the purpose of insulating barrier (2) surface coarsening.Second step was that the insulating barrier after the alligatoring (2) is adopted 25 * 10
4Gray(Gy), 30 minutes electron accelerator carries out irradiation, and the 3rd step was to be carried out chemical plating silverskin (3) by the insulating barrier behind alligatoring, the irradiation (2) surface, and its plating bath is by the proportioning reaction acquisition silver ion of two kinds of solution of A, B by 1: 1, wherein:
A liquid is formed: AgNO
316g/l
NaOH 7g/l
HNOH 40ml/l
B liquid is formed: glucose 3g/l
Tincture of iodine 3-4 drips/and l is in order to quicken its reaction, it reacted in ultrasonic vibrator.
This step process is handled except that adopting chemical silvering, also can adopt the PROCESS FOR TREATMENT of electroless copper, and the composition that its copper obtains liquid is: CuSO
47g/1; NiCL
21g/l;
NaOH 8g/l； NaCO
3 2g/l；
KNaCaH
4O
b·12H
2O 35g/l；
HCHO 13ml/l；
PH 12 copper facing conditions are: 15～20 ℃ of temperature, 60 minutes time.
The 4th step was copper facing rete (4), and this is when silver coating layer (3) sheet resistance reaches 10～15 ohm/meter, the beginning electroplating copper film, copper film is electroplated to adopt and is divided groove, interlock cushions plating mode up and down, and the temperature during plating is 10～30 ℃, and indoor humidity is not more than 70%, voltage is 2～3 volts, electric current is 25～30 amperes, after copper film coating (4) is finished, adopts the oversheath (5) of soft type PVC as film-shielding control caples, so far, whole cable manufacturing process process is all finished.
Claims (4)
1. a film-shielding control caples comprises tin-coated copper twisted wire core (1), radioresistance flame-retarding power interlinkage insulating barrier (2), PVC sheath (5) is characterized in that, sets gradually two-layer barrier film layer between insulating barrier (2) and sheath (5), promptly, silver layer barrier film layer (3), and copper layer barrier film layer (4).
2. the manufacture method of cable according to claim 1, this method comprises following step:
The first step is with the heating alligatoring of insulating barrier (2) surface;
In second step, the insulating barrier after the alligatoring (2) is carried out the electron radiation hinge handle;
The 3rd step is to the electroplate rete (3) of the insulating barrier (2) after handling through second step;
The 4th step, to copper coating rete (4) through the 3rd silver-plated rete (3) that goes on foot, wherein,
The first step is to coat the layer of polyethylene powder under 135 ℃ of conditions with the heating alligatoring of insulating barrier (2) surface, after 200 ℃ of high-temperature process, passes through 80 ℃ more again, 70 ℃, and 60 ℃ and 40 ℃ of classification tanks coolings;
In second step, it is to adopt 25 * 10 that the insulating barrier after the alligatoring (2) is carried out the processing of electron radiation hinge
4The electron accelerator of gray(Gy) carried out radiation 30 minutes to the insulating barrier after the alligatoring (2) surface; In the 3rd step, to the electroplate rete (3) of the insulating barrier (2) after handling through second step, plating bath is by the proportioning reaction acquisition silver ion of two kinds of solution of A, B by 1: 1, wherein,
The A fluid component is: AgNO
316g/l
NaOH 7g/l
HNOH 40?ml/l
The B fluid component is: glucose 3g/l
Tincture of iodine 3-4 drips/l
The 4th step, described plated copper film layer is when the sheet resistance of silver coating layer (3) reaches the 10-15 ohm/meter, the beginning electroplating copper film, copper film is electroplated and is adopted the branch groove, interlock cushions plating mode up and down, operative temperature is 10-30 ℃, indoor humidity is not more than 70%, and voltage is the 2-3 volt, and electric current is the 25-30 ampere.
3. method as claimed in claim 2 is characterized in that, the reaction of described two kinds of chemical plating fluid A and B is to carry out in ultrasonic vibrator.
4. method as claimed in claim 2 is characterized in that, it can be without the chemical plating silver layer but the employing chemical plating copper layer that described the 3rd step handles at the electroplate rete (3) of insulating barrier (2), and the proportioning of its plating bath is:
CuSO
4 7g/l；
NiCL
2 1g/l
NaOH 8g/l；
NaCO
3 2g/l；
KNaCaH
4O
6 35g/l；
HCHO 13ml/l；
PH 12
The copper facing condition is: temperature 15-25 ℃, the time is 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94119090A CN1073740C (en) | 1994-12-28 | 1994-12-28 | Film-shielding control caples and their manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94119090A CN1073740C (en) | 1994-12-28 | 1994-12-28 | Film-shielding control caples and their manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1109201A CN1109201A (en) | 1995-09-27 |
| CN1073740C true CN1073740C (en) | 2001-10-24 |
Family
ID=5039108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94119090A Expired - Fee Related CN1073740C (en) | 1994-12-28 | 1994-12-28 | Film-shielding control caples and their manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073740C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754943A (en) * | 2017-11-01 | 2019-05-14 | 上海昕讯微波科技有限公司 | A kind of improved aviation aerospace cable and production technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581938A (en) * | 1981-06-29 | 1983-01-07 | 北浜 清 | Medical clinical inspection timer |
| US5171937A (en) * | 1991-07-22 | 1992-12-15 | Champlain Cable Corporation | Metal-coated shielding materials and articles fabricated therefrom |
-
1994
- 1994-12-28 CN CN94119090A patent/CN1073740C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581938A (en) * | 1981-06-29 | 1983-01-07 | 北浜 清 | Medical clinical inspection timer |
| US5171937A (en) * | 1991-07-22 | 1992-12-15 | Champlain Cable Corporation | Metal-coated shielding materials and articles fabricated therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1109201A (en) | 1995-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN 609 CABLE CO., LTD. Free format text: FORMER OWNER: TIANJIN 609 CABLE ELECTRONICS CO., LTD. Effective date: 20010723 |
|
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20010723 Applicant after: Tianjin NO.609 Cable Co., Ltd. Applicant before: Tianjin six nine electronic wire & Cable Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011024 Termination date: 20121228 |