CN103000304A - Production method for light low-attenuation wrinkled coaxial cable - Google Patents
Production method for light low-attenuation wrinkled coaxial cable Download PDFInfo
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Abstract
The invention relates to a cable processing technology, in particular to a production method for a light low-attenuation wrinkled coaxial cable. The technical scheme is that the production method for the light low-attenuation wrinkled coaxial cable sequentially comprises the following steps: (1) preparing an inner conductor; (2) wrapping an insulator, first enabling the inner conductor to enter an inner thin layer extruder to enable an inner thin layer to be formed outside the inner conductor; enabling the inner conductor where the inner thin layer is wrapped to enter a foaming insulating layer extruder to form an insulating layer; and forming an outer thin layer outside the foaming insulating layer through an outer thin layer extruder; (3) preparing an outer conductor; and (4) wrapping a sheath, and using a plastic extruder to enable a sheath material to be wrapped outside the outer conductor to form the sheath. The wrinkled coaxial cable prepared in the method has the advantages of being low in attenuation, uniform in impedance and large in return loss.
Description
Technical field
The present invention relates to the cable process technology, particularly the production method of the low decay of a kind of lightweight corrugated coaxial cables.
Background technology
Corrugated coaxial cables of the prior art, as the radio frequency coaxial-cable of the utility model patent of authorizing publication number CN201533004U disclosed mobile communication base station use, Sylphon outer conductor radio frequency coaxial-cable, comprise inner wire, the inner wire outer from inside to outside successively foaming insulation layer of coaxial coating, outer conductor and oversheath, described inner wire is the aluminum steel that is coating copper sheet; And for example authorizing publication number is the disclosed a kind of high pressure corrugated aluminium sheath direct current cables of utility model patent of CN202373374U, conductor and oversheath have been comprised, it is characterized in that described conductor is arranged with insulating barrier outward, described insulating barrier has comprised interior screen and outer screen and crosslinked polyetylene insulated, is provided with corrugated aluminium sheath in the described oversheath; Though above-mentioned patent documentation records the general configuration of corrugated coaxial cables, unexposed concrete production technology also.
Summary of the invention
The purpose of this invention is to provide a kind of lightweight and hang down the production method of decay corrugated coaxial cables, the corrugated coaxial cables of using the preparation of this kind method has the advantage of low decay, even, the large return loss of impedance.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: the production method of the low decay of a kind of lightweight corrugated coaxial cables, and it may further comprise the steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in outside inner wire, forming, be divided into three sections temperature controls from charging aperture to the discharging opening of interior thin layer extruder, being followed successively by first paragraph 140-155 degree and temperature retention time is 2-5min, second segment 165-175 degree and temperature retention time are 3-4min, and the 3rd section is that 180-190 degree and temperature retention time are 3-6min; The inner wire that will be extruded with again interior thin layer passes into the foaming insulation layer extruder and forms insulating barrier, with the 60-69wt% high density polyethylene (HDPE), the 30-36wt% low density polyethylene (LDPE), 1-10wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 350-400Mpa pressure; The control gas injection port temperature 180-210 of place degree, insulation melts temperature 140-160 degree, extrusion mould-outlet temperature 120-140 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to the 50-60 degree and enter die orifice, under the pressurized condition, make molten mixture together by extrusion die, thereby form foaming insulation layer; Thin layer outside forming outside foaming insulation layer by outer thin layer extruder again, outer thin layer extruder has three sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 150-160 degree and temperature retention time is 2-4min, second segment 165-170 degree and temperature retention time are 3-5min, and the 3rd section is that 185-190 degree and temperature retention time are 4-6min;
(3) outer conductor preparation, the thin layer outer cladding adopts the aluminum pipe that is welded after the continous-stable shaping of lightweight aluminium strip process and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stablizing at a high speed rotation the aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor;
(4) extrude sheath, utilize plastic extruder, protective cover material is promoted melting through preheating, screw rod Stirring, will pass into the plastics plastic extruding machine through the semi-finished product of step (3) again, the continuously and smoothly extrudes through the extrusion die shaping, forms sheath outward thereby make protective cover material be coated on outer conductor; The plastics plastic extruding machine has seven sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 170-180 degree and temperature retention time is 1-3min, second segment 190-195 degree and temperature retention time are 2-4min, the 3rd section 200-210 degree and temperature retention time are 3-4min, the 4th section 195-200 degree and temperature retention time are 2-5min, the 5th section 185-190 degree and temperature retention time are 3-4min, and the 6th section 170-180 degree and temperature retention time are 3-5min, and the 7th section 160-165 degree and temperature retention time are 2-4min.
As of the present invention preferred, the interior thin layer in the described step (2) extrudes three sections temperature controls in the process, and being followed successively by first paragraph 150 degree and temperature retention time is 3min, and second segment 170 degree and temperature retention time are 4min, and the 3rd section is that 185 degree and temperature retention time are 5min.
As of the present invention preferred, insulating barrier in the described step (2) extrudes and is specially the inner wire that will be extruded with interior thin layer and passes into the foaming insulation layer extruder and form insulating barrier, with the 69wt% high density polyethylene (HDPE), the 30wt% low density polyethylene (LDPE), 1wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 380Mpa pressure; Control gas injection port place temperature 190 degree, insulation melts temperature 150 degree, extrusion mould-outlet temperature 130 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to 55 degree and enter die orifice, under the pressurized condition, make molten mixture together by extrusion die, thereby form foaming insulation layer.
As of the present invention preferred, the outer thin layer in the described step (2) extrudes that three sections temperature controls in the process are followed successively by first paragraph 155 degree and temperature retention time is 3min, and second segment 165 degree and temperature retention time are 4min, and the 3rd section is that 190 degree and temperature retention time are 5min.
As of the present invention preferred, extrude in the described step (4) that seven sections temperature controls in the overcoat process are followed successively by first paragraph 175 degree and temperature retention time is 2min, second segment 190 degree and temperature retention time are 3min, the 3rd section 205 the degree and temperature retention time be 4min, the 4th section 200 the degree and temperature retention time be 5min, the 5th section 190 the degree and temperature retention time be 3min, the 6th section 175 the degree and temperature retention time be 4min, the 7th section 165 the degree and temperature retention time be 3min.
As of the present invention preferred, the foam degrees of described foaming insulation layer 〉=80%.
As of the present invention preferred, the pitch of described annular Sylphon outer conductor is 5-10mm.
As of the present invention preferred, the crest external diameter of described annular Sylphon outer conductor is 22-25mm, and the trough external diameter is 20-22mm.
In sum, the present invention has following beneficial effect: the corrugated coaxial cables of using the present invention's preparation has good transmission performance; Inner wire can adopt annealing copper pipe or screw thread copper pipe; Owing to Particular craft of the present invention, so that use the corrugated coaxial cables of the present invention's preparation, has the advantage of low decay, even, the large return loss of impedance.
Embodiment
This specific embodiment only is explanation of the invention; it is not limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present invention.
Embodiment 1: the production method of the low decay of a kind of lightweight corrugated coaxial cables, and it may further comprise the steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in outside inner wire, forming, be divided into three sections temperature controls from charging aperture to the discharging opening of interior thin layer extruder, being followed successively by first paragraph 140 degree and temperature retention time is 2min, second segment 165 degree and temperature retention time are 3min, and the 3rd section is that 180 degree and temperature retention time are 3min; The inner wire that will be extruded with again interior thin layer passes into the foaming insulation layer extruder and forms insulating barrier, with the 60wt% high density polyethylene (HDPE), the 30wt% low density polyethylene (LDPE), 10wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 350Mpa pressure; Control gas injection port place temperature 180 degree, insulation melts temperature 140 degree, extrusion mould-outlet temperature 120 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to 50 degree and enter die orifice, make molten mixture together by extrusion die under the pressurized condition, thereby form foaming insulation layer, the foam degrees of described foaming insulation layer is 80%; Thin layer outside forming outside foaming insulation layer by outer thin layer extruder again, outer thin layer extruder has three sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 150 degree and temperature retention time is 2min, and second segment 165 degree and temperature retention time are 3min, and the 3rd section is that 185 degree and temperature retention time are 4min;
(3) outer conductor preparation, the thin layer outer cladding adopts the aluminum pipe that is welded after the continous-stable shaping of lightweight aluminium strip process and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stablizing at a high speed rotation the aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor; The pitch of described annular Sylphon outer conductor is 5mm, and the crest external diameter is 22mm, and the trough external diameter is 20mm;
(4) extrude sheath, utilize plastic extruder, protective cover material is promoted melting through preheating, screw rod Stirring, will pass into the plastics plastic extruding machine through the semi-finished product of step (3) again, the continuously and smoothly extrudes through the extrusion die shaping, forms sheath outward thereby make protective cover material be coated on outer conductor; The plastics plastic extruding machine has seven sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 170 degree and temperature retention time is 1min, second segment 190 degree and temperature retention time are 2min, the 3rd section 200 the degree and temperature retention time be 3min, the 4th section 195 the degree and temperature retention time be 2min, the 5th section 185 the degree and temperature retention time be 3min, the 6th section 170 the degree and temperature retention time be 3min, the 7th section 160 the degree and temperature retention time be 2min.
The partial properties parameter of the low decay of prepared lightweight wrinkle 1-1/4 coaxial cable is as follows: the 7.0%(that pad value is better than the cable product standard Q/CMCC0709-2007 of China Mobile pad value is such as: 900 MHz≤3.02dB/100m); Return loss: 800MHz-1000MHz≤-26dB, 1700MHz-2200MHz≤-25dB, 2500MHz-3000MHz≤-23dB; In the characteristic impedance control 50 ± 1; Transmission speed ratio 88%; Direct current proof voltage 10KV, insulation resistance＞1 * 10
4M Ω/km; Cut-off frequency 3.6GHz; Repeated flex radius 380mm.
Embodiment 2: the production method of the low decay of a kind of lightweight corrugated coaxial cables, and it may further comprise the steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in outside inner wire, forming, be divided into three sections temperature controls from charging aperture to the discharging opening of interior thin layer extruder, being followed successively by first paragraph 155 degree and temperature retention time is 5min, second segment 175 degree and temperature retention time are 4min, and the 3rd section is that 190 degree and temperature retention time are 6min; The inner wire that will be extruded with again interior thin layer passes into the foaming insulation layer extruder and forms insulating barrier, with the 65wt% high density polyethylene (HDPE), the 32wt% low density polyethylene (LDPE), 3wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 400Mpa pressure; Control gas injection port place temperature 210 degree, insulation melts temperature 160 degree, extrusion mould-outlet temperature 140 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to 60 degree and enter die orifice, make molten mixture together by extrusion die under the pressurized condition, thereby form foaming insulation layer, the foam degrees of foaming insulation layer is 85%; Thin layer outside forming outside foaming insulation layer by outer thin layer extruder again, outer thin layer extruder has three sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 160 degree and temperature retention time is 4min, and second segment 170 degree and temperature retention time are 5min, and the 3rd section is that 190 degree and temperature retention time are 6min;
(3) outer conductor preparation, the thin layer outer cladding adopts the aluminum pipe that is welded after the continous-stable shaping of lightweight aluminium strip process and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stablizing at a high speed rotation the aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor; The pitch of described annular Sylphon outer conductor is 10mm, and the crest external diameter of annular Sylphon outer conductor is 25mm, and the trough external diameter is 22mm;
(4) extrude sheath, utilize plastic extruder, protective cover material is promoted melting through preheating, screw rod Stirring, will pass into the plastics plastic extruding machine through the semi-finished product of step (3) again, the continuously and smoothly extrudes through the extrusion die shaping, forms sheath outward thereby make protective cover material be coated on outer conductor; The plastics plastic extruding machine has seven sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 180 degree and temperature retention time is 3min, second segment 195 degree and temperature retention time are 4min, the 3rd section 210 the degree and temperature retention time be 4min, the 4th section 200 the degree and temperature retention time be 5min, the 5th section 190 the degree and temperature retention time be 4min, the 6th section 180 the degree and temperature retention time be 5min, the 7th section 165 the degree and temperature retention time be 4min.
The partial properties parameter of the low decay of prepared lightweight wrinkle 1-5/8 coaxial cable as
Lower: the 10.0%(that pad value is better than the cable product standard Q/CMCC0709-2007 of China Mobile pad value is such as: 900 MHz≤2.38dB/100m); Return loss: 800MHz-1000MHz≤-26dB, 1700MHz-2200MHz≤-25dB, 2500MHz-3000MHz≤-23dB; In the characteristic impedance control 50 ± 1; Transmission speed ratio 88%; Direct current proof voltage 15KV, insulation resistance＞1 * 10
4M Ω/km; Cut-off frequency 3.0GHz; Repeated flex radius 510mm.
The production method of embodiment 3:1, the low decay of a kind of lightweight corrugated coaxial cables is characterized in that it may further comprise the steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in outside inner wire, forming, be divided into three sections temperature controls from charging aperture to the discharging opening of interior thin layer extruder, being followed successively by first paragraph 150 degree and temperature retention time is 3min, second segment 170 degree and temperature retention time are 4min, and the 3rd section is that 185 degree and temperature retention time are 5min; The inner wire that will be extruded with again interior thin layer passes into the foaming insulation layer extruder and forms insulating barrier, with the 69wt% high density polyethylene (HDPE), the 30wt% low density polyethylene (LDPE), 1wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 380Mpa pressure; Control gas injection port place temperature 190 degree, insulation melts temperature 150 degree, extrusion mould-outlet temperature 130 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to 55 degree and enter die orifice, make molten mixture together by extrusion die under the pressurized condition, thereby form foaming insulation layer, the foam degrees of foaming insulation layer is 85%; Thin layer outside forming outside foaming insulation layer by outer thin layer extruder again, outer thin layer extruder has three sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 155 degree and temperature retention time is 3min, and second segment 165 degree and temperature retention time are 4min, and the 3rd section is that 190 degree and temperature retention time are 5min;
(3) outer conductor preparation, the thin layer outer cladding adopts the aluminum pipe that is welded after the continous-stable shaping of lightweight aluminium strip process and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stablizing at a high speed rotation the aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor; The pitch of described annular Sylphon outer conductor is 7mm; The crest external diameter of annular Sylphon outer conductor is 24mm, and the trough external diameter is 21mm;
(4) extrude sheath, utilize plastic extruder, protective cover material is promoted melting through preheating, screw rod Stirring, will pass into the plastics plastic extruding machine through the semi-finished product of step (3) again, the continuously and smoothly extrudes through the extrusion die shaping, forms sheath outward thereby make protective cover material be coated on outer conductor; The plastics plastic extruding machine has seven sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 175 degree and temperature retention time is 2min, second segment 190 degree and temperature retention time are 3min, the 3rd section 205 the degree and temperature retention time be 4min, the 4th section 200 the degree and temperature retention time be 5min, the 5th section 190 the degree and temperature retention time be 3min, the 6th section 175 the degree and temperature retention time be 4min, the 7th section 165 the degree and temperature retention time be 3min.
The partial properties parameter of the low decay of prepared lightweight wrinkle 7/8 coaxial cable is as follows: the 8.0%(that pad value is better than the cable product standard Q/CMCC0709-2007 of China Mobile pad value is such as: 900 MHz≤4.25dB/100m); Return loss: 800MHz-1000MHz≤-26dB, 1700MHz-2200MHz≤-25dB, 2500MHz-3000MHz≤-23dB; In the characteristic impedance control 50 ± 1; Transmission speed ratio 91%, direct current proof voltage 10KV, insulation resistance＞1 * 10
4M Ω/km; Cut-off frequency 5.2GHz; Repeated flex radius 250mm.
Claims (8)
1. the production method of the low decay of lightweight corrugated coaxial cables is characterized in that it may further comprise the steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in outside inner wire, forming, be divided into three sections temperature controls from charging aperture to the discharging opening of interior thin layer extruder, being followed successively by first paragraph 140-155 degree and temperature retention time is 2-5min, second segment 165-175 degree and temperature retention time are 3-4min, and the 3rd section is that 180-190 degree and temperature retention time are 3-6min; The inner wire that will be extruded with again interior thin layer passes into the foaming insulation layer extruder and forms insulating barrier, with the 60-69wt% high density polyethylene (HDPE), the 30-36wt% low density polyethylene (LDPE), 1-10wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 350-400Mpa pressure; The control gas injection port temperature 180-210 of place degree, insulation melts temperature 140-160 degree, extrusion mould-outlet temperature 120-140 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to the 50-60 degree and enter die orifice, under the pressurized condition, make molten mixture together by extrusion die, thereby form foaming insulation layer; Thin layer outside forming outside foaming insulation layer by outer thin layer extruder again, outer thin layer extruder has three sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 150-160 degree and temperature retention time is 2-4min, second segment 165-170 degree and temperature retention time are 3-5min, and the 3rd section is that 185-190 degree and temperature retention time are 4-6min;
(3) outer conductor preparation, the thin layer outer cladding adopts the aluminum pipe that is welded after the continous-stable shaping of lightweight aluminium strip process and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stablizing at a high speed rotation the aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor;
(4) extrude sheath, utilize plastic extruder, protective cover material is promoted melting through preheating, screw rod Stirring, will pass into the plastics plastic extruding machine through the semi-finished product of step (3) again, the continuously and smoothly extrudes through the extrusion die shaping, forms sheath outward thereby make protective cover material be coated on outer conductor; The plastics plastic extruding machine has seven sections temperature controls by charging aperture to extruding end, being followed successively by first paragraph 170-180 degree and temperature retention time is 1-3min, second segment 190-195 degree and temperature retention time are 2-4min, the 3rd section 200-210 degree and temperature retention time are 3-4min, the 4th section 195-200 degree and temperature retention time are 2-5min, the 5th section 185-190 degree and temperature retention time are 3-4min, and the 6th section 170-180 degree and temperature retention time are 3-5min, and the 7th section 160-165 degree and temperature retention time are 2-4min.
2. a kind of lightweight according to claim 1 is hanged down the production method of decay corrugated coaxial cables, it is characterized in that, interior thin layer in the described step (2) extrudes three sections temperature controls in the process, being followed successively by first paragraph 150 degree and temperature retention time is 3min, second segment 170 degree and temperature retention time are 4min, and the 3rd section is that 185 degree and temperature retention time are 5min.
3. a kind of lightweight according to claim 1 is hanged down the production method of decay corrugated coaxial cables, it is characterized in that, insulating barrier in the described step (2) extrudes and is specially the inner wire that will be extruded with interior thin layer and passes into the foaming insulation layer extruder and form insulating barrier, with the 69wt% high density polyethylene (HDPE), the 30wt% low density polyethylene (LDPE), 1wt% modification azo diformazan phthalein amine nucleator is mixed to be incorporated in heating and melting in the foaming insulation layer extruder, subsequently heating and gasifying purity is reached 99.9% CO
2Gas injects melting insulator, abundant mixing mixing by the syringe metering with 380Mpa pressure; Control gas injection port place temperature 190 degree, insulation melts temperature 150 degree, extrusion mould-outlet temperature 130 degree, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire behind the interior thin layer be down to 55 degree and enter die orifice, under the pressurized condition, make molten mixture together by extrusion die, thereby form foaming insulation layer.
4. a kind of lightweight according to claim 1 is hanged down the production method of decay corrugated coaxial cables, it is characterized in that, outer thin layer in the described step (2) extrudes that three sections temperature controls in the process are followed successively by first paragraph 155 degree and temperature retention time is 3min, second segment 165 degree and temperature retention time are 4min, and the 3rd section is that 190 degree and temperature retention time are 5min.
5. a kind of lightweight according to claim 1 is hanged down the production method of decay corrugated coaxial cables, it is characterized in that, extrude in the described step (4) that seven sections temperature controls in the overcoat process are followed successively by first paragraph 175 degree and temperature retention time is 2min, second segment 190 degree and temperature retention time are 3min, the 3rd section 205 the degree and temperature retention time be 4min, the 4th section 200 the degree and temperature retention time be 5min, the 5th section 190 the degree and temperature retention time be 3min, the 6th section 175 the degree and temperature retention time be 4min, the 7th section 165 the degree and temperature retention time be 3min.
6. the production method of the low decay of a kind of lightweight according to claim 1 corrugated coaxial cables is characterized in that the foam degrees of described foaming insulation layer 〉=80%.
7. the production method of the low decay of a kind of lightweight according to claim 1 corrugated coaxial cables is characterized in that the pitch of described annular Sylphon outer conductor is 5-10mm.
8. the production method of the low decay of a kind of lightweight according to claim 7 corrugated coaxial cables is characterized in that the crest external diameter of described annular Sylphon outer conductor is 22-25mm, and the trough external diameter is 20-22mm.
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| CN201210569438.2A CN103000304B (en) | 2012-12-25 | 2012-12-25 | Production method for light low-attenuation wrinkled coaxial cable |
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| CN201210569438.2A CN103000304B (en) | 2012-12-25 | 2012-12-25 | Production method for light low-attenuation wrinkled coaxial cable |
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| CN103000304B CN103000304B (en) | 2014-12-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606415A (en) * | 2013-11-25 | 2014-02-26 | 浙江德通科技有限公司 | Light low-attenuation wrinkle coaxial cable |
| CN104332690A (en) * | 2013-11-06 | 2015-02-04 | 浙江德通科技有限公司 | Method for producing low-attenuation corrugated coaxial cable |
| CN111724945A (en) * | 2020-06-23 | 2020-09-29 | 浦大电缆集团有限公司 | Manufacturing method of environment-friendly insulated cable |
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|---|---|---|---|---|
| CN101136264A (en) * | 2006-08-29 | 2008-03-05 | 珠海汉胜工业有限公司 | Co-axial cable and method for making internally shallow layer thereof |
| CN101393783A (en) * | 2008-10-17 | 2009-03-25 | 珠海汉胜科技股份有限公司 | Communication coaxial cable and manufacturing method thereof |
| CN101640083A (en) * | 2009-09-09 | 2010-02-03 | 中天日立射频电缆有限公司 | Method for making carbon dioxide physically foamed RF coaxial cable insulation cable core |
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- 2012-12-25 CN CN201210569438.2A patent/CN103000304B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101136264A (en) * | 2006-08-29 | 2008-03-05 | 珠海汉胜工业有限公司 | Co-axial cable and method for making internally shallow layer thereof |
| CN101393783A (en) * | 2008-10-17 | 2009-03-25 | 珠海汉胜科技股份有限公司 | Communication coaxial cable and manufacturing method thereof |
| CN101640083A (en) * | 2009-09-09 | 2010-02-03 | 中天日立射频电缆有限公司 | Method for making carbon dioxide physically foamed RF coaxial cable insulation cable core |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332690A (en) * | 2013-11-06 | 2015-02-04 | 浙江德通科技有限公司 | Method for producing low-attenuation corrugated coaxial cable |
| CN103606415A (en) * | 2013-11-25 | 2014-02-26 | 浙江德通科技有限公司 | Light low-attenuation wrinkle coaxial cable |
| CN111724945A (en) * | 2020-06-23 | 2020-09-29 | 浦大电缆集团有限公司 | Manufacturing method of environment-friendly insulated cable |
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| CN103000304B (en) | 2014-12-03 |
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Denomination of invention: A production method of lightweight low attenuation wrinkled coaxial cable Effective date of registration: 20211227 Granted publication date: 20141203 Pledgee: Zhejiang Deqing rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG DETONG TECHNOLOGY Co.,Ltd. Registration number: Y2021330002668 |
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