Summary of the invention
In order to solve the problem, the object of the invention is to disclose a kind of feeder radio frequency coaxial-cable, it realizes by the following technical solutions.
A kind of feeder radio frequency coaxial-cable, it includes inner wire, be positioned at insulating barrier outside inner wire, be positioned at outer conductor outside insulating barrier, be positioned at oversheath outside outer conductor; It is characterized in that described inner wire is closed hollow tubular structures, the hollow parts of inner wire inside is filled with fiberglass reinforced plastics, and outer conductor is the tubular material of inner conductors full-shield, and insulating barrier is expanded material; Described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part; Described expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts.
A kind of feeder radio frequency coaxial-cable described above, is characterized in that described inner wire has interior embossing.
A kind of feeder radio frequency coaxial-cable described above, is characterized in that described outer conductor has outer embossing.
A kind of feeder radio frequency coaxial-cable described above, is characterized in that the material of described inner wire is copper or aluminium.
Further, a kind of feeder radio frequency coaxial-cable described above, is characterized in that the wall thickness of described inner wire is 0.05mm ~ 0.50mm.
A kind of feeder radio frequency coaxial-cable described above, is characterized in that the material of described outer conductor is copper or aluminium, and the thickness of outer conductor is 0.05mm ~ 0.40mm.
A kind of feeder radio frequency coaxial-cable described above, it is characterized in that described outer conductor is composite material, described composite material refers to: be the first film layer with insulating barrier contact-making surface, be the second thin layer with oversheath contact-making surface, is copper or aluminium between the first film layer and the second thin layer, the material of the first film layer is polyethylene or polypropylene, the material of the second thin layer is polyethylene or polypropylene, the thickness of the first film layer is 0.025mm ~ 0.10mm, the thickness of the second thin layer is 0.025mm ~ 0.10mm, the thickness of outer conductor is 0.06mm ~ 0.40mm.
A kind of feeder radio frequency coaxial-cable described above, is characterized in that the material of described insulating barrier is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low smoke and zero halogen polyethylene or PE foamed material.
A kind of feeder radio frequency coaxial-cable described above, is characterized in that the material of described oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low smoke and zero halogen polyethylene.
In the present invention, because inner wire have employed tubular structure, boring, therefore the material consumption that cost savings inner wire, make cost obviously decline; Because inner wire hollow parts is filled with fiberglass reinforced plastics, therefore, inner wire obtains strong support, during clamping inner wire, can not cause inner wire gross distortion, impact use owing to overexerting; Simultaneously, because outer conductor adopts metallic tube-shaped structure to instead of braiding structure of the prior art, metallic tube-shaped structure can adopt longitudinally coated mode, adopt the mode of welding to be connected, therefore speed of production reaches in prior art 10 ~ 20 times of the speed that weaves in edge butt joint place; Drastically increase efficiency.
The manufacture method of a kind of feeder radio frequency coaxial-cable of the present invention, is characterized in that it contains following steps:
Inner wire forming step: select wall thickness is 0.05mm ~ 0.50mm, width is required inner wire diameter 3.14 ~ 3.15 times copper strips or aluminium strip, by forming machine, copper strips or aluminium strip are rolled into cylindrical shape, and joint bonding machine on-line continuous in two edges is welded; Meanwhile, the boring part formation inner wire that fiberglass reinforced plastics fills full steel band or aluminium strip formation is got; Wherein, described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part;
Outer conductor forming step: extrude outside inner wire by plastic extruding machine by insulating layer material, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, is cooled to insulating barrier; Get copper strips or the aluminium strip of 3.13 ~ 3.15 times that thickness is 0.05mm ~ 0.40mm, width is insulating barrier external diameter, by forming machine copper strips or aluminium strip be rolled into cylindrical shape and be coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Or, insulating layer material is extruded outside inner wire by plastic extruding machine, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, be cooled to insulating barrier; Get 0.06mm ~ 0.40mm, the composite material of 3.13 ~ 3.15 times that width is insulating barrier external diameter, by forming machine composite material be rolled into cylindrical shape and be coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Described composite material refers to: and insulating barrier contact-making surface be the first film layer and oversheath contact-making surface is the second thin layer, is copper or aluminium between the first film layer and the second thin layer, the material of the first film layer is polyethylene or polypropylene, the material of the second thin layer is polyethylene or polypropylene, the thickness of the first film layer is 0.025mm ~ 0.10mm, and the thickness of the second thin layer is 0.025mm ~ 0.10mm;
Oversheath extrusion step: get low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low-smoke halogen-free polyethylene material extrusion molding and be coated on outer conductor and form oversheath outward, complete the manufacture of feeder radio frequency coaxial-cable.
The manufacture method of a kind of feeder radio frequency coaxial-cable in the invention process example 2, is characterized in that it contains following steps:
Inner wire forming step: select wall thickness is 0.05mm ~ 0.50mm, width is required inner wire diameter 3.14 ~ 3.15 times copper strips or aluminium strip, has embossing band in interior embossing by copper strips or aluminium strip by embossing calender formation; Interior embossing band is rolled into cylindrical shape by forming machine, and joint bonding machine on-line continuous in two edges is welded; Meanwhile, the boring part formation inner wire that fiberglass reinforced plastics fills full steel band or aluminium strip formation is got; Wherein, described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part;
Outer conductor forming step: extrude outside inner wire by plastic extruding machine by insulating layer material, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, is cooled to insulating barrier; Get copper strips or the aluminium strip of 3.13 ~ 3.15 times that thickness is 0.05mm ~ 0.40mm, width is insulating barrier external diameter, copper strips or aluminium strip are formed the outer embossing band with outer embossing by embossing calender; Outer embossing band is rolled into cylindrical shape by forming machine and is coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Or, insulating layer material is extruded outside inner wire by plastic extruding machine, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, be cooled to insulating barrier; Get 0.06mm ~ 0.40mm, the composite material of 3.13 ~ 3.15 times that width is insulating barrier external diameter, composite material is formed the outer embossing band with outer embossing by embossing calender; Outer embossing band is rolled into cylindrical shape by forming machine and is coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Described composite material refers to: and insulating barrier contact-making surface be the first film layer and oversheath contact-making surface is the second thin layer, is copper or aluminium between the first film layer and the second thin layer, the material of the first film layer is polyethylene or polypropylene, the material of the second thin layer is polyethylene or polypropylene, the thickness of the first film layer is 0.025mm ~ 0.10mm, and the thickness of the second thin layer is 0.025mm ~ 0.10mm;
Oversheath extrusion step: get low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low-smoke halogen-free polyethylene material extrusion molding and be coated on outer conductor and form oversheath outward, complete the manufacture of feeder radio frequency coaxial-cable.
The present invention has following main beneficial effect: metallic conductor uses less, speed of production is faster, and performance is more reliable and more stable, manufacture method is simple, equipment investment is few.
Embodiment
embodiment 1
Ask for an interview Fig. 1, a kind of feeder radio frequency coaxial-cable, it includes inner wire 2, be positioned at insulating barrier 3 outside inner wire, be positioned at outer conductor 4 outside insulating barrier, be positioned at oversheath 5 outside outer conductor; It is characterized in that described inner wire is closed hollow tubular structures, the hollow parts of inner wire inside is filled with fiberglass reinforced plastics 1, and outer conductor is the tubular material of inner conductors full-shield, and insulating barrier is expanded material; Described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part; Described expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts.
The manufacture method of a kind of feeder radio frequency coaxial-cable in this embodiment, is characterized in that it contains following steps:
Inner wire forming step: select wall thickness is 0.05mm ~ 0.50mm, width is required inner wire diameter 3.14 ~ 3.15 times copper strips or aluminium strip, by forming machine, copper strips or aluminium strip are rolled into cylindrical shape, and joint bonding machine on-line continuous in two edges is welded; Meanwhile, the boring part formation inner wire that fiberglass reinforced plastics fills full steel band or aluminium strip formation is got; Wherein, described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part;
Outer conductor forming step: extrude outside inner wire by plastic extruding machine by insulating layer material, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, is cooled to insulating barrier; Get copper strips or the aluminium strip of 3.13 ~ 3.15 times that thickness is 0.05mm ~ 0.40mm, width is insulating barrier external diameter, by forming machine copper strips or aluminium strip be rolled into cylindrical shape and be coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Or, insulating layer material is extruded outside inner wire by plastic extruding machine, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, be cooled to insulating barrier; Get 0.06mm ~ 0.40mm, the composite material of 3.13 ~ 3.15 times that width is insulating barrier external diameter, by forming machine composite material be rolled into cylindrical shape and be coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Described composite material refers to: and insulating barrier contact-making surface be the first film layer and oversheath contact-making surface is the second thin layer, is copper or aluminium between the first film layer and the second thin layer, the material of the first film layer is polyethylene or polypropylene, the material of the second thin layer is polyethylene or polypropylene, the thickness of the first film layer is 0.025mm ~ 0.10mm, and the thickness of the second thin layer is 0.025mm ~ 0.10mm;
Oversheath extrusion step: get low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low-smoke halogen-free polyethylene material extrusion molding and be coated on outer conductor and form oversheath outward, complete the manufacture of feeder radio frequency coaxial-cable.
embodiment 2
Ask for an interview Fig. 2, a kind of feeder radio frequency coaxial-cable, it includes inner wire 2, be positioned at insulating barrier 3 outside inner wire, be positioned at outer conductor 4 outside insulating barrier, be positioned at oversheath 5 outside outer conductor; It is characterized in that described inner wire is closed hollow tubular structures, the hollow parts of inner wire inside is filled with fiberglass reinforced plastics 1, and outer conductor is the tubular material of inner conductors full-shield, and insulating barrier is expanded material; Described inner wire has interior embossing 21; Described outer conductor has outer embossing 41; Described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part; Described expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts.
Certainly, in this embodiment, can also be only inner wire has interior embossing; Adding of interior embossing, can make that inner wire is more easily shaped, qualification rate is higher, more firm with the combination of fiberglass reinforced plastics.
Certainly, in this embodiment, also can be only outer conductor has outer embossing; Adding of outer embossing, can make that outer conductor is more easily shaped, qualification rate is higher, more firm with the combination of insulating barrier and oversheath.
The manufacture method of a kind of feeder radio frequency coaxial-cable in this embodiment, is characterized in that it contains following steps:
Inner wire forming step: select wall thickness is 0.05mm ~ 0.50mm, width is required inner wire diameter 3.14 ~ 3.15 times copper strips or aluminium strip, has embossing band in interior embossing by copper strips or aluminium strip by embossing calender formation; Interior embossing band is rolled into cylindrical shape by forming machine, and joint bonding machine on-line continuous in two edges is welded; Meanwhile, the boring part formation inner wire that fiberglass reinforced plastics fills full steel band or aluminium strip formation is got; Wherein, described fiberglass reinforced plastics by weight, comprise following raw material: length is 0.01 ~ 0.30mm, diameter is the glass fibre of 0.01 ~ 0.10mm: 50 ~ 70 parts, acrylic resin: 10 ~ 15 parts, polyvinyl resin: 15 ~ 20 parts, heat fusing glue: 5 ~ 8 parts, magnesium hydroxide: 10 ~ 15 parts, nylon 6:6 ~ 10 part, Tissuemat E: 1 ~ 3 part, commercially available model is the antioxidant of 264: 1 ~ 2 part;
Outer conductor forming step: extrude outside inner wire by plastic extruding machine by insulating layer material, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, is cooled to insulating barrier; Get copper strips or the aluminium strip of 3.13 ~ 3.15 times that thickness is 0.05mm ~ 0.40mm, width is insulating barrier external diameter, copper strips or aluminium strip are formed the outer embossing band with outer embossing by embossing calender; Outer embossing band is rolled into cylindrical shape by forming machine and is coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Or, insulating layer material is extruded outside inner wire by plastic extruding machine, makes insulating barrier external diameter be 1.5 ~ 3 times of inner wire diameter, be cooled to insulating barrier; Get 0.06mm ~ 0.40mm, the composite material of 3.13 ~ 3.15 times that width is insulating barrier external diameter, composite material is formed the outer embossing band with outer embossing by embossing calender; Outer embossing band is rolled into cylindrical shape by forming machine and is coated on outside insulating barrier, and by the bonding machine on-line continuous welding of two edges joint, and polish smooth weld formation outer conductor; Wherein, described insulating barrier is expanded material, expanded material by weight, comprises following raw material: PE resin: 30 ~ 40 parts, foamed plastics: 15 ~ 30 parts, commercially available model be K-750 or commercially available model be K-751 or commercially available model is the plastics blowing agent of K-790: 5 ~ 8 parts, acrylic resin: 5 ~ 10 parts, TDE: 5 ~ 10 parts; Described composite material refers to: and insulating barrier contact-making surface be the first film layer and oversheath contact-making surface is the second thin layer, is copper or aluminium between the first film layer and the second thin layer, the material of the first film layer is polyethylene or polypropylene, the material of the second thin layer is polyethylene or polypropylene, the thickness of the first film layer is 0.025mm ~ 0.10mm, and the thickness of the second thin layer is 0.025mm ~ 0.10mm;
Oversheath extrusion step: get low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low-smoke halogen-free polyethylene material extrusion molding and be coated on outer conductor and form oversheath outward, complete the manufacture of feeder radio frequency coaxial-cable.
A kind of feeder radio frequency coaxial-cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described inner wire is copper or aluminium.
Further, a kind of feeder radio frequency coaxial-cable described above, is characterized in that the wall thickness of described inner wire is 0.05mm ~ 0.50mm.
A kind of feeder radio frequency coaxial-cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described outer conductor is copper or aluminium, and the thickness of outer conductor is 0.05mm ~ 0.40mm.
A kind of feeder radio frequency coaxial-cable described in above-mentioned arbitrary embodiment, it is characterized in that described outer conductor is composite material, described composite material refers to: be the first film layer with insulating barrier contact-making surface, be the second thin layer with oversheath contact-making surface, is copper or aluminium between the first film layer and the second thin layer, the material of the first film layer is polyethylene or polypropylene, the material of the second thin layer is polyethylene or polypropylene, the thickness of the first film layer is 0.025mm ~ 0.10mm, the thickness of the second thin layer is 0.025mm ~ 0.10mm, the thickness of outer conductor is 0.06mm ~ 0.40mm.
A kind of feeder radio frequency coaxial-cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described insulating barrier also can be low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low smoke and zero halogen polyethylene.
A kind of feeder radio frequency coaxial-cable described in above-mentioned arbitrary embodiment, is characterized in that the material of described oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polyvinyl chloride or low smoke and zero halogen polyethylene.
In the present invention, because inner wire have employed tubular structure, boring, therefore the material consumption that cost savings inner wire, make cost obviously decline; Because inner wire hollow parts is filled with fiberglass reinforced plastics, therefore, inner wire obtains strong support, during clamping inner wire, can not cause inner wire gross distortion, impact use owing to overexerting; Simultaneously, because outer conductor adopts metallic tube-shaped structure to instead of braiding structure of the prior art, metallic tube-shaped structure can adopt longitudinally coated mode, adopt the mode of welding to be connected, therefore speed of production reaches in prior art 10 ~ 20 times of the speed that weaves in edge butt joint place; Drastically increase efficiency; The present invention is through contrasting with coaxial cable of the prior art, and shielding factor is higher, is only 25 ~ 30dB in prior art, and the shielding factor >=38dB in the present invention.
2.5 ~ 3 times that fiberglass reinforced plastics formula in the present invention makes the cohesive force >=12N of fiberglass reinforced plastics and inner wire, peel strength >=3N/mm, the tensile strength of inner wire (comprising fiberglass reinforced plastics) is the inner wire not containing fiberglass reinforced plastics.
Insulating barrier formula in the present invention makes the peel strength 2.0N/mm of the peel strength >=2.5N/mm of outer conductor and insulating barrier, inner wire and insulating barrier.
The present invention has high anti-torsion and flexibility, when inner wire diameter 1mm, insulating barrier external diameter 2.5mm, outer conductor diameter 2.9mm, oversheath diameter 4mm, get 1 meter of length, fix for one section, the other end adds 50N constant force and reverses 7200 degree clockwise, return, another mistake hour hands reverse 7200 degree, and cable has no cracking; Get the cable of 1 meter of length equally, around diameter be 4mm plug on, sheath has no cracking, inside/outside conductor detects through CT scan, has no slight crack.
The present invention has following main beneficial effect: metallic conductor uses less, speed of production is faster, and performance is more reliable and more stable.
The present invention is not limited to above-mentioned preferred forms, and should be appreciated that design of the present invention can be implemented to use by other various forms, they drop in protection scope of the present invention equally.