CN103872421B - A kind of preparation method of radio frequency coaxial-cable crust - Google Patents
A kind of preparation method of radio frequency coaxial-cable crust Download PDFInfo
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- CN103872421B CN103872421B CN201410090253.2A CN201410090253A CN103872421B CN 103872421 B CN103872421 B CN 103872421B CN 201410090253 A CN201410090253 A CN 201410090253A CN 103872421 B CN103872421 B CN 103872421B
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Abstract
The invention discloses a kind of preparation method of radio frequency coaxial-cable crust, this preparation method comprises the steps: a) preliminary treatment silver-plated copper powder, b) batch mixing, and c) extrude coated, d) vulcanizing treatment, e) is wound around rolling.Present invention is disclosed a kind of preparation method of radio frequency coaxial-cable crust, this preparation method's procedure arrangement is reasonable, preparation technology is easy, science, moderate cost, obtained crust has outstanding comprehensive mechanics and chemical property, the fillers such as the silver-plated copper powder of outer intracutaneous can form continuous, stable, an efficient stereoscopic electric magnetic screen net, ensure that the high-quality of radio frequency coaxial-cable when Signal transmissions, improve the serviceability of radio frequency coaxial-cable.
Description
Technical field
The present invention relates to a kind of preparation method of crust of radio frequency coaxial-cable, particularly relate to a kind of mechanics, stable chemical performance, the preparation method of the radio frequency coaxial-cable crust that electromagnetic shielding capability is given prominence to, belongs to coaxial cable technology field.
Background technology
Radio frequency coaxial-cable is one of modal transmission medium in local area network (LAN), its inner wire is metal solid wire, nexine insulating material can select the material such as polyethylene, polypropylene, another layer of ring shaped conductor and outer conductor in the outside of nexine insulating material, outer conductor adopts metal copper wire, aluminium wire or B alloy wire mostly, be wrapped on nexine insulating material by braiding or non-woven form, it is coated that the outside of outer conductor adopts pvc material to carry out usually, forms crust.Why adopting said structure to design, is the transmission in order to prevent external electromagnetic wave interference normal signal, improves the transmission quality of signal.
The crust of radio frequency coaxial-cable is the extraneous protective layer corroded of cable opposing, and in use, crust is often subject to the effect of heat load, mechanical load or chemical corrosion.In practice process, almost only have combined type or above-mentioned performance requirement can be met by the combination of multiple skin material.Silicon rubber, as elastomeric material, has good pliability, corrosion resistance and high and low temperature intensity, can be used as coaxial cable skin material and uses.But silicon rubber does not have electromagnetic shielding capability, limit the quality of Signal transmissions to a certain extent.In current art, people improve the performance of silicon rubber by filling electromagnetic shielding material in silicon rubber, but current technology flow process is complicated, and cost is higher, are not the preferred plan improving crust performance.
Summary of the invention
For the demand, the invention provides a kind of preparation method of radio frequency coaxial-cable crust, this preparation method's procedure arrangement is reasonable, be easy to implement, moderate cost, obtained crust serviceability is excellent, and silver-plated copper powder of mixing in it can form an efficient stereoscopic electric magnetic screen net by endo-endothelial layer outside, to guarantee the high-quality of radio frequency coaxial-cable when Signal transmissions.
The present invention is a kind of preparation method of radio frequency coaxial-cable crust, and this preparation method comprises the steps: a) preliminary treatment silver-plated copper powder, b) batch mixing, and c) extrude coated, d) vulcanizing treatment, e) is wound around rolling.
In a preferred embodiment of the present invention, in described step a), processing procedure is as follows: first, compound concentration is the silane coupler solution of 0.8%-1%, silane coupler selects vinyl three t-butylperoxy silane, and absolute ethyl alcohol selected by solvent, adds proper amount of acetic acid in process for preparation; Then, silver-plated copper powder is put into solid mixer, add the silane coupler solution of preparation and stir, mixer rotating speed controls at 500-550r/min, and mixing time is 20-25 minute; Finally, removed by silver-plated copper powder and carry out drying and processing, temperature controls at 110 DEG C-120 DEG C, and the time is about 2 hours.
In a preferred embodiment of the present invention, in described step b), batch mixing process is as follows: first, and quantitative liquid silastic, graphite powder and pretreated silver-plated copper powder are added into agitator, uniform stirring 20-30 minute, agitator temperature controls at 120 DEG C-130 DEG C; Then, maintain agitator temperature-resistant, add quantitative crosslinked reinforcing agent and heat-resisting stabilizing agent, continue to stir 40-50 minute; Finally, agitator temperature is down to 80 DEG C-90 DEG C, adds quantitative vulcanizing agent, continue to stir 15-20 minute.
In a preferred embodiment of the present invention, in described step c), compound is imported extruder, evenly extrude rear being directly coated on conductor by cross-head; Cross-head temperature controls at 90 DEG C-95 DEG C, and the extrusion capacity of compound controls at 4-6g/s, and the tractive effort suffered by conductor is about 10-12N, and translational speed is about 0.6-0.7m/min.
In a preferred embodiment of the present invention, in described step d), the horizontal vulcanizer of employing carries out vulcanizing treatment to form skin, and curing temperature controls at 170 DEG C-180 DEG C, and the time is about 2-2.5 hour.
Present invention is disclosed a kind of preparation method of radio frequency coaxial-cable crust, this preparation method's procedure arrangement is reasonable, preparation technology is easy, science, moderate cost, obtained crust has outstanding comprehensive mechanics and chemical property, the fillers such as the silver-plated copper powder of outer intracutaneous can form continuous, stable, an efficient stereoscopic electric magnetic screen net, ensure that the high-quality of radio frequency coaxial-cable when Signal transmissions, improve the serviceability of radio frequency coaxial-cable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the process figure of the preparation method of embodiment of the present invention radio frequency coaxial-cable crust.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the process figure of the preparation method of embodiment of the present invention radio frequency coaxial-cable crust; This preparation method comprises the steps: a) preliminary treatment silver-plated copper powder, b) batch mixing, and c) extrude coated, d) vulcanizing treatment, e) is wound around rolling.
Embodiment 1
The concrete preparation process of the radio frequency coaxial-cable crust that the present invention mentions is as follows:
A) preliminary treatment silver-plated copper powder, processing procedure is as follows: first, and compound concentration is the silane coupler solution of 0.8%-0.9%, silane coupler selects vinyl three t-butylperoxy silane, absolute ethyl alcohol selected by solvent, adds proper amount of acetic acid in process for preparation, controls the pH value of solution between 4-4.5; Then, silver-plated copper powder is put into solid mixer, add the silane coupler solution of preparation and stir, mixer rotating speed controls at 500-520r/min, and mixing time is 24-25 minute; Finally, removed by silver-plated copper powder and carry out drying and processing, temperature controls at 110 DEG C-115 DEG C, and the time is about 2 hours;
B) batch mixing, batch mixing process is as follows: first, quantitative liquid silastic, graphite powder and pretreated silver-plated copper powder is added into agitator, uniform stirring 20-25 minute, and agitator temperature controls at 125 DEG C-130 DEG C; Then, maintain agitator temperature-resistant, add quantitative crosslinked reinforcing agent and heat-resisting stabilizing agent, continue to stir 40-45 minute; Finally, agitator temperature is down to 85 DEG C-90 DEG C, adds quantitative vulcanizing agent, continue to stir 15-16 minute; The ratio of quality and the number of copies that above-mentioned raw materials adds is about: liquid silastic 130 parts, graphite powder 25 parts, silver-plated copper powder 95 parts, crosslinked reinforcing agent 8 parts, vulcanizing agent 4 parts, heat-resisting stabilizing agent 10 parts; Wherein, crosslinked reinforcing agent is the intermixture of ethyl orthosilicate and dibutyl tin laurate, and mixing portion rate is 4:1, and the model of vulcanizing agent is HC-224, and heat-resisting stabilizing agent selects di-iron trioxide;
C) extrude coated, compound is imported extruder, evenly extrudes rear being directly coated on conductor by cross-head; In this process, cross-head temperature controls at 90 DEG C-95 DEG C, and the extrusion capacity of compound controls at 4-5g/s, and the tractive effort suffered by conductor is about 10N, and translational speed is about 0.6m/min; The skin thickness obtained by above-mentioned technique is about 0.25-0.27mm;
D) vulcanizing treatment, the horizontal vulcanizer of employing carries out vulcanizing treatment to form skin, and curing temperature is about 175 DEG C, and the time is about 2-2.2 hour;
E) rolling is wound around.
Embodiment 2
The concrete preparation process of the radio frequency coaxial-cable crust that the present invention mentions is as follows:
A) preliminary treatment silver-plated copper powder, processing procedure is as follows: first, and compound concentration is the silane coupler solution of 0.9%-1%, silane coupler selects vinyl three t-butylperoxy silane, absolute ethyl alcohol selected by solvent, adds proper amount of acetic acid in process for preparation, controls the pH value of solution between 4.5-5; Then, silver-plated copper powder is put into solid mixer, add the silane coupler solution of preparation and stir, mixer rotating speed controls at 530-550r/min, and mixing time is 20-22 minute; Finally, removed by silver-plated copper powder and carry out drying and processing, temperature controls at 115 DEG C-120 DEG C, and the time is about 2 hours;
B) batch mixing, batch mixing process is as follows: first, quantitative liquid silastic, graphite powder and pretreated silver-plated copper powder is added into agitator, uniform stirring 25-30 minute, and agitator temperature controls at 120 DEG C-125 DEG C; Then, maintain agitator temperature-resistant, add quantitative crosslinked reinforcing agent and heat-resisting stabilizing agent, continue to stir 45-50 minute; Finally, agitator temperature is down to 80 DEG C-85 DEG C, adds quantitative vulcanizing agent, continue to stir 18-20 minute; The ratio of quality and the number of copies that above-mentioned raw materials adds is about: liquid silastic 135 parts, graphite powder 25 parts, silver-plated copper powder 100 parts, crosslinked reinforcing agent 8 parts, vulcanizing agent 5 parts, heat-resisting stabilizing agent 12 parts; Wherein, crosslinked reinforcing agent is the intermixture of ethyl orthosilicate and dibutyl tin laurate, and mixing portion rate is 4:1, and the model of vulcanizing agent is HC-224, and heat-resisting stabilizing agent selects titanium dioxide;
C) extrude coated, compound is imported extruder, evenly extrudes rear being directly coated on conductor by cross-head; In this process, cross-head temperature controls at 90 DEG C-95 DEG C, and the extrusion capacity of compound controls at 5-6g/s, and the tractive effort suffered by conductor is about 12N, and translational speed is about 0.7m/min; The skin thickness obtained by above-mentioned technique is about 0.27-0.28mm;
D) vulcanizing treatment, the horizontal vulcanizer of employing carries out vulcanizing treatment to form skin, and curing temperature is about 170 DEG C, and the time is about 2.4-2.5 hour;
E) rolling is wound around.
Present invention is disclosed a kind of preparation method of radio frequency coaxial-cable crust, this preparation method's procedure arrangement is reasonable, preparation technology is easy, science, moderate cost, obtained crust has outstanding comprehensive mechanics and chemical property, the fillers such as the silver-plated copper powder of outer intracutaneous can form continuous, stable, an efficient stereoscopic electric magnetic screen net, ensure that the high-quality of radio frequency coaxial-cable when Signal transmissions, improve the serviceability of radio frequency coaxial-cable.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (3)
1. a preparation method for radio frequency coaxial-cable crust, is characterized in that, this preparation method comprises the steps: a) preliminary treatment silver-plated copper powder, b) batch mixing, and c) extrude coated, d) vulcanizing treatment, e) is wound around rolling;
In described step a), processing procedure is as follows: first, and compound concentration is the silane coupler solution of 0.8%-1%, and silane coupler selects vinyl three t-butylperoxy silane, and absolute ethyl alcohol selected by solvent, adds proper amount of acetic acid in process for preparation; Then, silver-plated copper powder is put into solid mixer, add the silane coupler solution of preparation and stir, mixer rotating speed controls at 500-550r/min, and mixing time is 20-25 minute; Finally, taken out by silver-plated copper powder and carry out drying and processing, temperature controls at 110 DEG C-120 DEG C, and the time is about 2 hours;
In described step b), batch mixing process is as follows: first, quantitative liquid silastic, graphite powder and pretreated silver-plated copper powder is added into agitator, uniform stirring 20-30 minute, and agitator temperature controls at 120 DEG C-130 DEG C; Then, maintain agitator temperature-resistant, add quantitative crosslinked reinforcing agent and heat-resisting stabilizing agent, continue to stir 40-50 minute; Finally, agitator temperature is down to 80 DEG C-90 DEG C, adds quantitative vulcanizing agent, continue to stir 15-20 minute.
2. the preparation method of radio frequency coaxial-cable crust according to claim 1, is characterized in that, in described step c), compound is imported extruder, evenly extrudes rear being directly coated on conductor by cross-head; Cross-head temperature controls at 90 DEG C-95 DEG C, and the extrusion capacity of compound controls at 4-6g/s, and the tractive effort suffered by conductor is about 10-12N, and translational speed is about 0.6-0.7m/min.
3. the preparation method of radio frequency coaxial-cable crust according to claim 1, is characterized in that, in described step d), the horizontal vulcanizer of employing carries out vulcanizing treatment to form skin, and curing temperature controls at 170 DEG C-180 DEG C, and the time is about 2-2.5 hour.
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| CN201410090253.2A CN103872421B (en) | 2014-03-13 | 2014-03-13 | A kind of preparation method of radio frequency coaxial-cable crust |
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| CN201410090253.2A CN103872421B (en) | 2014-03-13 | 2014-03-13 | A kind of preparation method of radio frequency coaxial-cable crust |
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| CN103872421A CN103872421A (en) | 2014-06-18 |
| CN103872421B true CN103872421B (en) | 2016-01-20 |
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| CN106298086A (en) * | 2016-08-17 | 2017-01-04 | 安徽顺驰电缆有限公司 | A kind of preparation technology of cable sheath |
| CN115332752B (en) * | 2022-10-12 | 2023-04-07 | 四川德骏智造科技有限公司 | Microwave transmission line and preparation method thereof |
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| JP2002329426A (en) * | 2001-04-27 | 2002-11-15 | Hitachi Cable Ltd | Coaxial cable and its manufacturing method |
| CN1571076A (en) * | 2003-04-15 | 2005-01-26 | 整体技术公司 | Low cost shielded cable manufactured from conductive loaded resin-based materials |
| CN101921475A (en) * | 2010-09-07 | 2010-12-22 | 厦门建霖工业有限公司 | Metal-like engineering plastic composite material and preparation method thereof |
| CN102604388A (en) * | 2012-03-22 | 2012-07-25 | 北京化工大学 | Low-compressive-deformation and high-conductivity rubber composite material and preparation method thereof |
| CN103131120A (en) * | 2013-03-01 | 2013-06-05 | 冠捷显示科技（厦门）有限公司 | Fake metal plastic cement material preparation method |
| CN103436197A (en) * | 2013-09-02 | 2013-12-11 | 南京萨特科技发展有限公司 | Conductive adhesive for over-temperature overcurrent protective element and production method thereof |
-
2014
- 2014-03-13 CN CN201410090253.2A patent/CN103872421B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002329426A (en) * | 2001-04-27 | 2002-11-15 | Hitachi Cable Ltd | Coaxial cable and its manufacturing method |
| CN1571076A (en) * | 2003-04-15 | 2005-01-26 | 整体技术公司 | Low cost shielded cable manufactured from conductive loaded resin-based materials |
| CN101921475A (en) * | 2010-09-07 | 2010-12-22 | 厦门建霖工业有限公司 | Metal-like engineering plastic composite material and preparation method thereof |
| CN102604388A (en) * | 2012-03-22 | 2012-07-25 | 北京化工大学 | Low-compressive-deformation and high-conductivity rubber composite material and preparation method thereof |
| CN103131120A (en) * | 2013-03-01 | 2013-06-05 | 冠捷显示科技（厦门）有限公司 | Fake metal plastic cement material preparation method |
| CN103436197A (en) * | 2013-09-02 | 2013-12-11 | 南京萨特科技发展有限公司 | Conductive adhesive for over-temperature overcurrent protective element and production method thereof |
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