CN103000304B - 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 cable process technology, particularly the production method of the low decay corrugated coaxial cables of a kind of lightweight.
Background technology
Corrugated coaxial cables of the prior art, the radio frequency coaxial-cable that mobile communication base station as disclosed in the utility model patent of authorizing publication number CN201533004U is used, Sylphon outer conductor radio frequency coaxial-cable, comprise inner wire, outer coaxial coated foaming insulation layer, outer conductor and the oversheath successively from inside to outside of inner wire, described inner wire is the aluminum steel that is being coated 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 are 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, in described oversheath, is provided with corrugated aluminium sheath; Though above-mentioned patent documentation records the general configuration of corrugated coaxial cables, also unexposed concrete production technology.
Summary of the invention
The object of this invention is to provide the production method of the low decay corrugated coaxial cables of a kind of lightweight, apply corrugated coaxial cables prepared by this kind of method have advantages of low decay, impedance evenly, large return loss.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: the production method of the low decay corrugated coaxial cables of a kind of lightweight, and it comprises the following steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in forming outside inner wire, be divided into three sections of 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; Again the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder and form insulating barrier, 60-69wt% high density polyethylene (HDPE), 30-36wt% low density polyethylene (LDPE), 1-10wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 350-400Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Control the temperature 180-210 of gas injection port 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 after interior thin layer be down to 50-60 degree and enter die orifice, under 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 of 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, thin layer outer cladding adopts the aluminum pipe that lightweight aluminium strip is welded after continous-stable shaping and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stable rotation at a high speed, aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor;
(4) extrude sheath, utilize plastics plastic extruding machine, protective cover material is promoted to melting, then will pass into plastics plastic extruding machine through the semi-finished product of step (3) through preheating, screw rod Stirring, through extrusion die shaping, continuously and smoothly extrudes, and forms sheath outward thereby make protective cover material be coated on outer conductor; Plastics plastic extruding machine has seven sections of 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 of 200-210 degree and temperature retention time are 3-4min, the 4th section of 195-200 degree and temperature retention time are 2-5min, the 5th section of 185-190 degree and temperature retention time are 3-4min, and the 6th section of 170-180 degree and temperature retention time are 3-5min, and the 7th section of 160-165 degree and temperature retention time are 2-4min.
Preferably the interior thin layer in described step (2) extrudes three sections of temperature controls in process as of the present invention, is followed successively by that first paragraph 150 is spent and temperature retention time is 3min, and second segment 170 is spent and temperature retention time is 4min, and the 3rd section is that 185 degree and temperature retention time are 5min.
As of the present invention preferred, insulating barrier in described step (2) extrudes to be specially the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder formation insulating barrier, 69wt% high density polyethylene (HDPE), 30wt% low density polyethylene (LDPE), 1wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 380Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Controlling gas injection port place temperature 190 spends, insulation melts temperature 150 is spent, extrusion mould-outlet temperature 130 is spent, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire after interior thin layer be down to 55 degree and enter die orifice, under pressurized condition, make molten mixture together by extrusion die, thereby form foaming insulation layer.
Preferably the outer thin layer in described step (2) extrudes three sections of temperature controls in process and is followed successively by that first paragraph 155 is spent and temperature retention time is 3min as of the present invention, and second segment 165 is spent and temperature retention time is 4min, and the 3rd section is that 190 degree and temperature retention time are 5min.
As of the present invention preferred, in described step (4), extrude seven sections of temperature controls in overcoat process and be followed successively by that first paragraph 175 is spent and temperature retention time is 2min, second segment 190 is spent and temperature retention time is 3min, the 3rd section 205 degree and temperature retention time be 4min, the 4th section 200 degree and temperature retention time be 5min, the 5th section 190 degree and temperature retention time be 3min, the 6th section 175 degree and temperature retention time be 4min, the 7th section 165 degree and temperature retention time be 3min.
As of the present invention preferred, foam degrees >=80% of described foaming insulation layer.
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 trough external diameter is 20-22mm.
In sum, the present invention has following beneficial effect: corrugated coaxial cables prepared by application the present invention has good transmission performance; Inner wire can adopt annealing copper pipe or screw thread copper pipe; Due to Particular craft of the present invention, make to apply corrugated coaxial cables prepared by the present invention, there is low decay, even, the large return loss of impedance.
Embodiment
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art are reading after this specification and can make to the present embodiment the amendment that there is no creative contribution as required, but as long as within the scope of claim of the present invention, are all subject to the protection of Patent Law.
Embodiment 1: the production method of the low decay corrugated coaxial cables of a kind of lightweight, it comprises the following steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in forming outside inner wire, be divided into three sections of temperature controls from charging aperture to the discharging opening of interior thin layer extruder, be followed successively by that first paragraph 140 is spent and temperature retention time is 2min, second segment 165 is spent and temperature retention time is 3min, and the 3rd section is that 180 degree and temperature retention time are 3min; Again the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder and form insulating barrier, 60wt% high density polyethylene (HDPE), 30wt% low density polyethylene (LDPE), 10wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 350Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Controlling gas injection port place temperature 180 spends, insulation melts temperature 140 is spent, extrusion mould-outlet temperature 120 is spent, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire after interior thin layer be down to 50 degree and enter die orifice, under pressurized condition, make molten mixture together by extrusion die, 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 of temperature controls by charging aperture to extruding end, be followed successively by that first paragraph 150 is spent and temperature retention time is 2min, second segment 165 is spent and temperature retention time is 3min, and the 3rd section is that 185 degree and temperature retention time are 4min;
(3) outer conductor preparation, thin layer outer cladding adopts the aluminum pipe that lightweight aluminium strip is welded after continous-stable shaping and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stable rotation at a high speed, 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 crest external diameter is 22mm, and trough external diameter is 20mm;
(4) extrude sheath, utilize plastics plastic extruding machine, protective cover material is promoted to melting, then will pass into plastics plastic extruding machine through the semi-finished product of step (3) through preheating, screw rod Stirring, through extrusion die shaping, continuously and smoothly extrudes, and forms sheath outward thereby make protective cover material be coated on outer conductor; Plastics plastic extruding machine has seven sections of temperature controls by charging aperture to extruding end, be followed successively by that first paragraph 170 is spent and temperature retention time is 1min, second segment 190 is spent and temperature retention time is 2min, the 3rd section 200 degree and temperature retention time be 3min, the 4th section 195 degree and temperature retention time be 2min, the 5th section 185 degree and temperature retention time be 3min, the 6th section 170 degree and temperature retention time be 3min, the 7th section 160 degree and temperature retention time be 2min.
The partial properties parameter of the low decay wrinkle of prepared lightweight 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 as: 900 MHz≤3.02dB/100m); Return loss: 800MHz-1000MHz≤-26dB, 1700MHz-2200MHz≤-25dB, 2500MHz-3000MHz≤-23dB; In 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 corrugated coaxial cables of a kind of lightweight, it comprises the following steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in forming outside inner wire, be divided into three sections of temperature controls from charging aperture to the discharging opening of interior thin layer extruder, be followed successively by that first paragraph 155 is spent and temperature retention time is 5min, second segment 175 is spent and temperature retention time is 4min, and the 3rd section is that 190 degree and temperature retention time are 6min; Again the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder and form insulating barrier, 65wt% high density polyethylene (HDPE), 32wt% low density polyethylene (LDPE), 3wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 400Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Controlling gas injection port place temperature 210 spends, insulation melts temperature 160 is spent, extrusion mould-outlet temperature 140 is spent, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire after interior thin layer be down to 60 degree and enter die orifice, under pressurized condition, make molten mixture together by extrusion die, 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 of temperature controls by charging aperture to extruding end, be followed successively by that first paragraph 160 is spent and temperature retention time is 4min, second segment 170 is spent and temperature retention time is 5min, and the 3rd section is that 190 degree and temperature retention time are 6min;
(3) outer conductor preparation, thin layer outer cladding adopts the aluminum pipe that lightweight aluminium strip is welded after continous-stable shaping and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stable rotation at a high speed, 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 trough external diameter is 22mm;
(4) extrude sheath, utilize plastics plastic extruding machine, protective cover material is promoted to melting, then will pass into plastics plastic extruding machine through the semi-finished product of step (3) through preheating, screw rod Stirring, through extrusion die shaping, continuously and smoothly extrudes, and forms sheath outward thereby make protective cover material be coated on outer conductor; Plastics plastic extruding machine has seven sections of temperature controls by charging aperture to extruding end, be followed successively by that first paragraph 180 is spent and temperature retention time is 3min, second segment 195 is spent and temperature retention time is 4min, the 3rd section 210 degree and temperature retention time be 4min, the 4th section 200 degree and temperature retention time be 5min, the 5th section 190 degree and temperature retention time be 4min, the 6th section 180 degree and temperature retention time be 5min, the 7th section 165 degree and temperature retention time be 4min.
The partial properties parameter of the low decay wrinkle of prepared lightweight 1-5/8 coaxial cable as
under: the 10.0%(that pad value is better than the cable product standard Q/CMCC0709-2007 of China Mobile pad value as: 900 MHz≤2.38dB/100m); Return loss: 800MHz-1000MHz≤-26dB, 1700MHz-2200MHz≤-25dB, 2500MHz-3000MHz≤-23dB; In 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 corrugated coaxial cables of a kind of lightweight, is characterized in that, it comprises the following steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in forming outside inner wire, be divided into three sections of temperature controls from charging aperture to the discharging opening of interior thin layer extruder, be followed successively by that first paragraph 150 is spent and temperature retention time is 3min, second segment 170 is spent and temperature retention time is 4min, and the 3rd section is that 185 degree and temperature retention time are 5min; Again the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder and form insulating barrier, 69wt% high density polyethylene (HDPE), 30wt% low density polyethylene (LDPE), 1wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 380Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Controlling gas injection port place temperature 190 spends, insulation melts temperature 150 is spent, extrusion mould-outlet temperature 130 is spent, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire after interior thin layer be down to 55 degree and enter die orifice, under pressurized condition, make molten mixture together by extrusion die, 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 of temperature controls by charging aperture to extruding end, be followed successively by that first paragraph 155 is spent and temperature retention time is 3min, second segment 165 is spent and temperature retention time is 4min, and the 3rd section is that 190 degree and temperature retention time are 5min;
(3) outer conductor preparation, thin layer outer cladding adopts the aluminum pipe that lightweight aluminium strip is welded after continous-stable shaping and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stable rotation at a high speed, 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 trough external diameter is 21mm;
(4) extrude sheath, utilize plastics plastic extruding machine, protective cover material is promoted to melting, then will pass into plastics plastic extruding machine through the semi-finished product of step (3) through preheating, screw rod Stirring, through extrusion die shaping, continuously and smoothly extrudes, and forms sheath outward thereby make protective cover material be coated on outer conductor; Plastics plastic extruding machine has seven sections of temperature controls by charging aperture to extruding end, be followed successively by that first paragraph 175 is spent and temperature retention time is 2min, second segment 190 is spent and temperature retention time is 3min, the 3rd section 205 degree and temperature retention time be 4min, the 4th section 200 degree and temperature retention time be 5min, the 5th section 190 degree and temperature retention time be 3min, the 6th section 175 degree and temperature retention time be 4min, the 7th section 165 degree and temperature retention time be 3min.
The partial properties parameter of low decay wrinkle 7/8 coaxial cable of prepared lightweight is as follows: the 8.0%(that pad value is better than the cable product standard Q/CMCC0709-2007 of China Mobile pad value as: 900 MHz≤4.25dB/100m); Return loss: 800MHz-1000MHz≤-26dB, 1700MHz-2200MHz≤-25dB, 2500MHz-3000MHz≤-23dB; In 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. a production method for the low decay corrugated coaxial cables of lightweight, is characterized in that, it comprises the following steps successively:
(1) preparation of inner wire;
(2) extruded insulation body, first inner wire is passed into interior thin layer extruder, thin layer in forming outside inner wire, be divided into three sections of 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; Again the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder and form insulating barrier, 60-69wt% high density polyethylene (HDPE), 30-36wt% low density polyethylene (LDPE), 1-10wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 350-400Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Control the temperature 180-210 of gas injection port 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 after interior thin layer be down to 50-60 degree and enter die orifice, under 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 of 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, thin layer outer cladding adopts the aluminum pipe that lightweight aluminium strip is welded after continous-stable shaping and the drawing of diamond alloy mould outside, and through head of embossing and the embossing cutter of stable rotation at a high speed, aluminum pipe rolling extrusion is shaped again, after roughing preforming and finish rolling forming process, form annular Sylphon outer conductor;
(4) extrude sheath, utilize plastics plastic extruding machine, protective cover material is promoted to melting, then will pass into plastics plastic extruding machine through the semi-finished product of step (3) through preheating, screw rod Stirring, through extrusion die shaping, continuously and smoothly extrudes, and forms sheath outward thereby make protective cover material be coated on outer conductor; Plastics plastic extruding machine has seven sections of 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 of 200-210 degree and temperature retention time are 3-4min, the 4th section of 195-200 degree and temperature retention time are 2-5min, the 5th section of 185-190 degree and temperature retention time are 3-4min, and the 6th section of 170-180 degree and temperature retention time are 3-5min, and the 7th section of 160-165 degree and temperature retention time are 2-4min.
2. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 1, it is characterized in that, interior thin layer in described step (2) extrudes three sections of temperature controls in process, be followed successively by that first paragraph 150 is spent and temperature retention time is 3min, second segment 170 is spent and temperature retention time is 4min, and the 3rd section is that 185 degree and temperature retention time are 5min.
3. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 1, it is characterized in that, insulating barrier in described step (2) extrudes to be specially the inner wire that is extruded with interior thin layer is passed into foaming insulation layer extruder formation insulating barrier, 69wt% high density polyethylene (HDPE), 30wt% low density polyethylene (LDPE), 1wt% modification azo diformazan phthalein amine nucleator are mixed and be incorporated in heating and melting in foaming insulation layer extruder, subsequently heating and gasifying purity is reached to 99.9% CO
2gas, is measured with 380Mpa pressure and is injected melting insulator, abundant mixing mixing by syringe; Controlling gas injection port place temperature 190 spends, insulation melts temperature 150 is spent, extrusion mould-outlet temperature 130 is spent, and controller neck to the die orifice temperature difference is ± 2 degree, make the temperature that extrudes the inner wire after interior thin layer be down to 55 degree and enter die orifice, under pressurized condition, make molten mixture together by extrusion die, thereby form foaming insulation layer.
4. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 1, it is characterized in that, outer thin layer in described step (2) extrudes three sections of temperature controls in process and is followed successively by that first paragraph 155 is spent and temperature retention time is 3min, second segment 165 is spent and temperature retention time is 4min, and the 3rd section is that 190 degree and temperature retention time are 5min.
5. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 1, it is characterized in that, in described step (4), extrude seven sections of temperature controls in overcoat process and be followed successively by that first paragraph 175 is spent and temperature retention time is 2min, second segment 190 is spent and temperature retention time is 3min, the 3rd section 205 degree and temperature retention time be 4min, the 4th section 200 degree and temperature retention time be 5min, the 5th section 190 degree and temperature retention time be 3min, the 6th section 175 degree and temperature retention time be 4min, the 7th section 165 degree and temperature retention time be 3min.
6. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 1, is characterized in that foam degrees >=80% of described foaming insulation layer.
7. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 1, is characterized in that, the pitch of described annular Sylphon outer conductor is 5-10mm.
8. the production method of the low decay corrugated coaxial cables of a kind of lightweight according to claim 7, is characterized in that, the crest external diameter of described annular Sylphon outer conductor is 22-25mm, and 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 true CN103000304B (en) | 2014-12-03 |
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| 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 |
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 |
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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 |
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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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