CN105206346A - Multifunctional fire-resistant environment-friendly audio signal cable and preparation technology thereof - Google Patents
Multifunctional fire-resistant environment-friendly audio signal cable and preparation technology thereof Download PDFInfo
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- CN105206346A CN105206346A CN201510647181.1A CN201510647181A CN105206346A CN 105206346 A CN105206346 A CN 105206346A CN 201510647181 A CN201510647181 A CN 201510647181A CN 105206346 A CN105206346 A CN 105206346A
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- 230000005236 sound signal Effects 0.000 title claims abstract description 19
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 28
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 15
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Abstract
The invention discloses a multifunctional fire-resistant environment-friendly audio signal cable and a preparation technology thereof. The multifunctional fire-resistant environment-friendly audio signal cable comprises a cable core, a cabling wrapping tape layer and an outer protective sleeve layer; the exterior of the cable core is sequentially wrapped with the cabling wrapping tape layer and the outer protective sleeve layer; the cable core is composed of two transmission line cores, a current discharging line and stuffing; each transmission line core is composed of a conductor layer, a fire-resistant layer and an insulating layer, wherein the conductor layer is sequentially wrapped with the fire-resistant layer and the insulating layer. The cable can serve as a communication and telephone system and is a fire-resistant, low-smoke, halogen-free, flame-retardant, low-damping, low-inductance audio cable of which the service voltage is at 300-500 V-class; the cable needs to meet the requirement that the fire resistance meets an A-level combustion test, an X-level impact vibration combustion test and a W-level water spray combustion test in the BS 6387 standard requirement, wherein the W-level water spray combustion test is performed by adopting a simulation method; a voltage-resistance test with the frequency of 50 Hz 1000 V/1 min needs to be performed after the sample cable is off a machine.
Description
Technical field
The invention belongs to field of cables, be specifically related to a kind of multi-functional fire-resistant environment-friendly type audio signal cable and preparation technology thereof
.
Background technology
Existing market product only has general fire resistance, requirement is not reached in fire-resistant, product decay is large, for telecommunication cable, there is large transmission impact, because product is used in the larger region of mankind's activity, require higher for environmental requirement, to the fire resistance of product, smoke density requirement, content of halogen etc. have high requirement, and product also will meet 50Hz1000V/1min withstand voltage test.
Summary of the invention
Goal of the invention: in order to solve the deficiencies in the prior art, the invention provides a kind of multi-functional fire-resistant environment-friendly type audio signal cable and preparation technology thereof, can meet fire resistance, low decay, low smoke and zero halogen, impact endurance test shock burning, Water spray burning test.
Technical scheme: a kind of multi-functional fire-resistant environment-friendly type audio signal cable, comprise cable core, stranding belting layer and external sheath layer, described cable core is overmolding to cable wrap belt and external sheath layer outward successively; Described cable core is made up of 2 transmission core, earial drainage line and paddings; Described transmission core is made up of conductor layer, flame retardant coating and insulating barrier; Described conductor layer is coated with flame retardant coating and insulating barrier outward successively.
As optimization: described stranding belting layer adopts inorganic Mica tape.
As optimization: described external sheath layer is low-smoke non-halogen flame-retardant external sheath layer.
As optimization: described conductor layer adopts silver-plated or zinc-plated bundle strand two class conductor.
As optimization: described flame retardant coating is the wrapped flame retardant coating of conductor.
As optimization: described insulating barrier adopts the high resistance material of low-smoke non-halogen flame-retardant or second third mixed rubber to make.
The preparation technology of described multi-functional fire-resistant environment-friendly type audio signal cable, comprises the steps:
(1) wire drawing: adopt the copper bar of Ф 1.2mm and Ф 0.8mm to produce the monofilament to Ф 0.25mm and Ф 0.19mm by the most I of the wire-drawing die of gradual-change bore diameter in small wire drawing machine;
(2) anneal: in the annealed stove of monofilament after the high temperature of 580 DEG C ~ 600 DEG C, in monofilament, cause broken lattice to be reassembled arrangement by wire drawing; Annealing monofilament is online by the tin stove of 380 DEG C ~ 400 DEG C, and after the eye mould sizing of tin stove end, the tin layers of fusing evenly can be coated in conductive surface; The index request that the zinc-plated rear elongation at break of annealing is not less than 30% is proposed to conductor monofilament; Monofilament is respectively as the conductor of product and drainage thread;
(3) synnema, multiple strand: it is 1.5mm that cable conductor is twisted by multifilament bundle
2~ 1.58mm
2conductor element; Drainage thread is the conductor element of a uniform section by multifilament bundle strand; Copper monofilament is carried out the stranded requirement reaching the qualified resistance of 5 class copper conductor meeting GB/T3956-2008 regulation according to certain radical, pitch; Adopt high-speed wire bunching machine, strand bow maximum (top) speed: 2000rpm;
(4) Mica tape: adopt calcining mica tape, it is oppositely wrapped that vertical lapping equipment carries out bilayer, wrapped Duplication >=45%, ensures that overlap joint evenly, wrinkle resistant;
(5) insulating exruded: to be evenly coated on outside conductor after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environment-friendlyinsulation insulation material, insulating surface should be smooth, the tangent plane of insulation should without visual visible pore, power frequency spark should be adopted in insulation extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive cabling procedure; In order to fire protection requirement can adopt high accuracy vulcanization crosslinking line to carry out Ceramic flower silicon rubber insulation;
(6) stranding is wrapped: according to the structure needs of cable, cable conductor is twisted together formation cable core according to certain structural arrangement, certain pitch, certain direction of lay, in order to ensure cable core rounding, low smoke and zero halogen packing can be added in cable core; Be dragged into the blockage effects shield effectiveness that a drainage thread prevents outer aluminium plastic membrane band from rupturing to armoured magnetic field electric current in stranding, cable core uses aluminium plastic membrane band to tighten cable core outward, prevents cable core loose, and serves the effect of shield electromagnetic;
(7) oversheath is extruded: be evenly coated on outside screen after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environmental protection fire resistant flame retardant sheath material, jacket surface should be smooth, the tangent plane of sheath should without visual visible pore, power frequency spark should be adopted in sheath extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive lettering operation, ensure insulation property and the refractory ring guaranteed cost of oversheath;
(8) cable lettering: jacket surface lettering can adopt the mode of coding to carry out lettering, lettering content should comprise " factory's name special type specification rice mark ", and lettering is debated through the cotton that gets wet is still clear after wiping 10 times gently.
Beneficial effect: the cable in the present invention can be used as communication and telephone system, there is fire-resistant, low-smoke non-halogen flame-retardant, low decay, low inductance, use the voice-frequency cable of voltage 300-500V grade, the fire-resistant demand fulfillment fire resistance of product meets horizontal burning test A level in BS6387 standard-required, impact endurance test shock burning test X level, Water spray burning test W level three test.Wherein, the test of Water spray burning test W level adopts simulation to carry out; Needing after machine under sample wire to carry out frequency is 50Hz1000V/1min withstand voltage test.
In order to ensure that D.C. resistance adopts zinc-plated or silver-plated conductor, ensure that fire prevention and dielectric voltage withstand adopt the wrapped flame retardant coating of conductor, insulation adopts the high resistance material of low-smoke non-halogen flame-retardant.In order to ensure that product decay, electric capacity, inductance insulated core adopt rational twisting pitch, ensureing the stability of cable core, ensureing electric capacity, decay.Conductor adopts the wrapped or vertical bag of metal tape, has good shield effectiveness, ensures the crosstalk attenuation of product, in order to ensure the electric property of product, adding earial drainage line, ensureing that bucking current is derived in time, in order to bending property easy to use is good, adopt excellent oversheath.
Described cable core also establishes earial drainage wire, both ensure that and the continuity of screen reduce the transfger impedance of shielding simultaneously, longitudinally places many silver-plated bundle twisted wires as earial drainage wire to screen aluminium-plastic composite strip is wrapped;
This construction of cable is owing to increasing the structure of aluminum plastic film shielding, cable is except having the feature of low electric capacity, low inductance, also there is superior shielding properties, the anti-electromagnetic field interference of cable and the ability of anti-field coupled all more satisfactory, effectively prevent the hidden danger that partial discharge that the change due to electromagnetic field formed causes spark;
Adopt the structure of the inorganic Mica tape of artificial calcining, reduce the risk that cable loaded current overload causes spark, mica tape is coated on conductive surface, can isolate oxygen, effectively prevents the generation of cable conductor spark, and mica tape has heat-resistant fireproof performance.
Product structure is silver-plated or zinc-plated bundle strand two class conductor, the D.C. resistance ensured and softness.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1, cable core; 2, stranding belting layer; 3, external sheath layer; 11 transmission cores; 12, earial drainage line; 13, padding; 111, conductor layer; 112, flame retardant coating; 113, insulating barrier.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
As shown in Figure 1, a kind of multi-functional fire-resistant environment-friendly type audio signal cable, comprises cable core 1, stranding belting layer 2 and external sheath layer 3, and described cable core 1 is outer is overmolding to cable wrap belt 2 and external sheath layer 3 successively.Described stranding belting layer 2 adopts inorganic Mica tape.Described external sheath layer 3 is low-smoke non-halogen flame-retardant external sheath layer.Described cable core 1 is made up of 2 transmission core 11, earial drainage line 12 and paddings 13.Described transmission core 11 is made up of conductor layer 111, flame retardant coating 112 and insulating barrier 113; Described conductor layer 11 is outer is coated with flame retardant coating 112 and insulating barrier 113 successively.Described conductor layer 111 adopts silver-plated or zinc-plated bundle strand two class conductor.Described flame retardant coating 112 is the wrapped flame retardant coating of conductor.Described insulating barrier 113 adopts the high resistance material of low-smoke non-halogen flame-retardant or second third mixed rubber to make.
Specific embodiment 1
The preparation technology of described multi-functional fire-resistant environment-friendly type audio signal cable, comprises the steps:
(1) wire drawing: adopt the copper bar of Ф 1.2mm and Ф 0.8mm to produce the monofilament to Ф 0.25mm and Ф 0.19mm by the most I of the wire-drawing die of gradual-change bore diameter in small wire drawing machine;
(2) anneal: in the annealed stove of monofilament after the high temperature of 580 DEG C, in monofilament, cause broken lattice to be reassembled arrangement by wire drawing; Annealing monofilament is online by the tin stove of 380 DEG C, and after the eye mould sizing of tin stove end, the tin layers of fusing evenly can be coated in conductive surface; The index request that the zinc-plated rear elongation at break of annealing is not less than 30% is proposed to conductor monofilament; Monofilament is respectively as the conductor of product and drainage thread;
(3) synnema, multiple strand: it is 1.5mm that cable conductor is twisted by multifilament bundle
2~ 1.58mm
2conductor element; Drainage thread is the conductor element of a uniform section by multifilament bundle strand; Copper monofilament is carried out the stranded requirement reaching the qualified resistance of 5 class copper conductor meeting GB/T3956-2008 regulation according to certain radical, pitch; Adopt high-speed wire bunching machine, strand bow maximum (top) speed: 2000rpm;
(4) Mica tape: adopt calcining mica tape, it is oppositely wrapped that vertical lapping equipment carries out bilayer, wrapped Duplication >=45%, ensures that overlap joint evenly, wrinkle resistant;
(5) insulating exruded: to be evenly coated on outside conductor after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environment-friendlyinsulation insulation material, insulating surface should be smooth, the tangent plane of insulation should without visual visible pore, power frequency spark should be adopted in insulation extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive cabling procedure; In order to fire protection requirement can adopt high accuracy vulcanization crosslinking line to carry out Ceramic flower silicon rubber insulation;
(6) stranding is wrapped: according to the structure needs of cable, cable conductor is twisted together formation cable core according to certain structural arrangement, certain pitch, certain direction of lay, in order to ensure cable core rounding, low smoke and zero halogen packing can be added in cable core; Be dragged into the blockage effects shield effectiveness that a drainage thread prevents outer aluminium plastic membrane band from rupturing to armoured magnetic field electric current in stranding, cable core uses aluminium plastic membrane band to tighten cable core outward, prevents cable core loose, and serves the effect of shield electromagnetic;
(7) oversheath is extruded: be evenly coated on outside screen after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environmental protection fire resistant flame retardant sheath material, jacket surface should be smooth, the tangent plane of sheath should without visual visible pore, power frequency spark should be adopted in sheath extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive lettering operation, ensure insulation property and the refractory ring guaranteed cost of oversheath;
(8) cable lettering: jacket surface lettering can adopt the mode of coding to carry out lettering, lettering content should comprise " factory's name special type specification rice mark ", and lettering is debated through the cotton that gets wet is still clear after wiping 10 times gently.
Specific embodiment 2
The preparation technology of described multi-functional fire-resistant environment-friendly type audio signal cable, comprises the steps:
(1) wire drawing: adopt the copper bar of Ф 1.2mm and Ф 0.8mm to produce the monofilament to Ф 0.25mm and Ф 0.19mm by the most I of the wire-drawing die of gradual-change bore diameter in small wire drawing machine;
(2) anneal: in the annealed stove of monofilament after the high temperature of 600 DEG C, in monofilament, cause broken lattice to be reassembled arrangement by wire drawing; Annealing monofilament is online by the tin stove of 400 DEG C, and after the eye mould sizing of tin stove end, the tin layers of fusing evenly can be coated in conductive surface; The index request that the zinc-plated rear elongation at break of annealing is not less than 30% is proposed to conductor monofilament; Monofilament is respectively as the conductor of product and drainage thread;
(3) synnema, multiple strand: it is 1.5mm that cable conductor is twisted by multifilament bundle
2~ 1.58mm
2conductor element; Drainage thread is the conductor element of a uniform section by multifilament bundle strand; Copper monofilament is carried out the stranded requirement reaching the qualified resistance of 5 class copper conductor meeting GB/T3956-2008 regulation according to certain radical, pitch; Adopt high-speed wire bunching machine, strand bow maximum (top) speed: 2000rpm;
(4) Mica tape: adopt calcining mica tape, it is oppositely wrapped that vertical lapping equipment carries out bilayer, wrapped Duplication >=45%, ensures that overlap joint evenly, wrinkle resistant;
(5) insulating exruded: to be evenly coated on outside conductor after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environment-friendlyinsulation insulation material, insulating surface should be smooth, the tangent plane of insulation should without visual visible pore, power frequency spark should be adopted in insulation extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive cabling procedure; In order to fire protection requirement can adopt high accuracy vulcanization crosslinking line to carry out Ceramic flower silicon rubber insulation;
(6) stranding is wrapped: according to the structure needs of cable, cable conductor is twisted together formation cable core according to certain structural arrangement, certain pitch, certain direction of lay, in order to ensure cable core rounding, low smoke and zero halogen packing can be added in cable core; Be dragged into the blockage effects shield effectiveness that a drainage thread prevents outer aluminium plastic membrane band from rupturing to armoured magnetic field electric current in stranding, cable core uses aluminium plastic membrane band to tighten cable core outward, prevents cable core loose, and serves the effect of shield electromagnetic;
(7) oversheath is extruded: be evenly coated on outside screen after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environmental protection fire resistant flame retardant sheath material, jacket surface should be smooth, the tangent plane of sheath should without visual visible pore, power frequency spark should be adopted in sheath extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive lettering operation, ensure insulation property and the refractory ring guaranteed cost of oversheath;
(8) cable lettering: jacket surface lettering can adopt the mode of coding to carry out lettering, lettering content should comprise " factory's name special type specification rice mark ", and lettering is debated through the cotton that gets wet is still clear after wiping 10 times gently.
Specific embodiment 3
The preparation technology of described multi-functional fire-resistant environment-friendly type audio signal cable, comprises the steps:
(1) wire drawing: adopt the copper bar of Ф 1.2mm and Ф 0.8mm to produce the monofilament to Ф 0.25mm and Ф 0.19mm by the most I of the wire-drawing die of gradual-change bore diameter in small wire drawing machine;
(2) anneal: in the annealed stove of monofilament after the high temperature of 590 DEG C, in monofilament, cause broken lattice to be reassembled arrangement by wire drawing; Annealing monofilament is online by the tin stove of 390 DEG C, and after the eye mould sizing of tin stove end, the tin layers of fusing evenly can be coated in conductive surface; The index request that the zinc-plated rear elongation at break of annealing is not less than 30% is proposed to conductor monofilament; Monofilament is respectively as the conductor of product and drainage thread;
(3) synnema, multiple strand: it is 1.5mm that cable conductor is twisted by multifilament bundle
2~ 1.58mm
2conductor element; Drainage thread is the conductor element of a uniform section by multifilament bundle strand; Copper monofilament is carried out the stranded requirement reaching the qualified resistance of 5 class copper conductor meeting GB/T3956-2008 regulation according to certain radical, pitch; Adopt high-speed wire bunching machine, strand bow maximum (top) speed: 2000rpm;
(4) Mica tape: adopt calcining mica tape, it is oppositely wrapped that vertical lapping equipment carries out bilayer, wrapped Duplication >=45%, ensures that overlap joint evenly, wrinkle resistant;
(5) insulating exruded: to be evenly coated on outside conductor after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environment-friendlyinsulation insulation material, insulating surface should be smooth, the tangent plane of insulation should without visual visible pore, power frequency spark should be adopted in insulation extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive cabling procedure; In order to fire protection requirement can adopt high accuracy vulcanization crosslinking line to carry out Ceramic flower silicon rubber insulation;
(6) stranding is wrapped: according to the structure needs of cable, cable conductor is twisted together formation cable core according to certain structural arrangement, certain pitch, certain direction of lay, in order to ensure cable core rounding, low smoke and zero halogen packing can be added in cable core; Be dragged into the blockage effects shield effectiveness that a drainage thread prevents outer aluminium plastic membrane band from rupturing to armoured magnetic field electric current in stranding, cable core uses aluminium plastic membrane band to tighten cable core outward, prevents cable core loose, and serves the effect of shield electromagnetic;
(7) oversheath is extruded: be evenly coated on outside screen after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environmental protection fire resistant flame retardant sheath material, jacket surface should be smooth, the tangent plane of sheath should without visual visible pore, power frequency spark should be adopted in sheath extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive lettering operation, ensure insulation property and the refractory ring guaranteed cost of oversheath;
(8) cable lettering: jacket surface lettering can adopt the mode of coding to carry out lettering, lettering content should comprise " factory's name special type specification rice mark ", and lettering is debated through the cotton that gets wet is still clear after wiping 10 times gently.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.
Claims (7)
1. a multi-functional fire-resistant environment-friendly type audio signal cable, it is characterized in that: comprise cable core (1), stranding belting layer (2) and external sheath layer (3), described cable core (1) is overmolding to cable wrap belt (2) and external sheath layer (3) outward successively; Described cable core (1) is made up of 2 transmission core (11), earial drainage line (12) and paddings (13); Described transmission core (11) is made up of conductor layer (111), flame retardant coating (112) and insulating barrier (113); Described conductor layer (11) is coated with flame retardant coating (112) and insulating barrier (113) outward successively.
2. multi-functional fire-resistant environment-friendly type audio signal cable according to claim 1, is characterized in that: described stranding belting layer (2) adopts inorganic Mica tape.
3. multi-functional fire-resistant environment-friendly type audio signal cable according to claim 1, is characterized in that: described external sheath layer (3) is low-smoke non-halogen flame-retardant external sheath layer.
4. multi-functional fire-resistant environment-friendly type audio signal cable according to claim 1, is characterized in that: described conductor layer (111) adopts silver-plated or zinc-plated bundle strand two class conductor.
5. multi-functional fire-resistant environment-friendly type audio signal cable according to claim 1, is characterized in that: described flame retardant coating (112) is the wrapped flame retardant coating of conductor.
6. multi-functional fire-resistant environment-friendly type audio signal cable according to claim 1, is characterized in that: described insulating barrier (113) adopts the high resistance material of low-smoke non-halogen flame-retardant or second third mixed rubber to make.
7. the preparation technology of multi-functional fire-resistant environment-friendly type audio signal cable according to claim 1, is characterized in that: comprise the steps:
(1) wire drawing: adopt the copper bar of Ф 1.2mm and Ф 0.8mm to produce the monofilament to Ф 0.25mm and Ф 0.19mm by the most I of the wire-drawing die of gradual-change bore diameter in small wire drawing machine;
(2) anneal: in the annealed stove of monofilament after the high temperature of 580 DEG C ~ 600 DEG C, in monofilament, cause broken lattice to be reassembled arrangement by wire drawing; Annealing monofilament is online by the tin stove of 380 DEG C ~ 400 DEG C, and after the eye mould sizing of tin stove end, the tin layers of fusing evenly can be coated in conductive surface; The index request that the zinc-plated rear elongation at break of annealing is not less than 30% is proposed to conductor monofilament; Monofilament is respectively as the conductor of product and drainage thread;
(3) synnema, multiple strand: it is 1.5mm that cable conductor is twisted by multifilament bundle
2~ 1.58mm
2conductor element; Drainage thread is the conductor element of a uniform section by multifilament bundle strand; Copper monofilament is carried out the stranded requirement reaching the qualified resistance of 5 class copper conductor meeting GB/T3956-2008 regulation according to certain radical, pitch; Adopt high-speed wire bunching machine, strand bow maximum (top) speed: 2000rpm;
(4) Mica tape: adopt calcining mica tape, it is oppositely wrapped that vertical lapping equipment carries out bilayer, wrapped Duplication >=45%, ensures that overlap joint evenly, wrinkle resistant;
(5) insulating exruded: to be evenly coated on outside conductor after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environment-friendlyinsulation insulation material, insulating surface should be smooth, the tangent plane of insulation should without visual visible pore, power frequency spark should be adopted in insulation extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive cabling procedure; In order to fire protection requirement can adopt high accuracy vulcanization crosslinking line to carry out Ceramic flower silicon rubber insulation;
(6) stranding is wrapped: according to the structure needs of cable, cable conductor is twisted together formation cable core according to certain structural arrangement, certain pitch, certain direction of lay, in order to ensure cable core rounding, low smoke and zero halogen packing can be added in cable core; Be dragged into the blockage effects shield effectiveness that a drainage thread prevents outer aluminium plastic membrane band from rupturing to armoured magnetic field electric current in stranding, cable core uses aluminium plastic membrane band to tighten cable core outward, prevents cable core loose, and serves the effect of shield electromagnetic;
(7) oversheath is extruded: be evenly coated on outside screen after extrusion die sizing after utilizing high accuracy plastic extruding machine to carry out extrusion molten to environmental protection fire resistant flame retardant sheath material, jacket surface should be smooth, the tangent plane of sheath should without visual visible pore, power frequency spark should be adopted in sheath extrusion process to carry out defect inspection to insulation, only have the insulated wire cores checked by surface quality, insulation thickness and spark to circulate and arrive lettering operation, ensure insulation property and the refractory ring guaranteed cost of oversheath;
(8) cable lettering: jacket surface lettering can adopt the mode of coding to carry out lettering, lettering content should comprise " factory's name special type specification rice mark ", and lettering is debated through the cotton that gets wet is still clear after wiping 10 times gently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647181.1A CN105206346A (en) | 2015-10-09 | 2015-10-09 | Multifunctional fire-resistant environment-friendly audio signal cable and preparation technology thereof |
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| CN105469860A (en) * | 2015-12-31 | 2016-04-06 | 天长市富信电子有限公司 | Mining power cable and production technology thereof |
| CN105489282A (en) * | 2015-12-31 | 2016-04-13 | 天长市富信电子有限公司 | Outdoor cold-resistant anti-aging power line and production process therefor |
| CN105513715A (en) * | 2015-12-31 | 2016-04-20 | 天长市富信电子有限公司 | Production process of low-smoke flame-retardant power line |
| CN105632595A (en) * | 2015-12-31 | 2016-06-01 | 天长市富信电子有限公司 | Production technology of fire-resistant power cable |
| CN105810356A (en) * | 2016-05-30 | 2016-07-27 | 天津朗兴电线电缆有限公司 | Symmetrically-twisted anti-explosion high-temperature-resistant low-noise cable and manufacturing method thereof |
| CN105845223A (en) * | 2016-05-30 | 2016-08-10 | 天津朗兴电线电缆有限公司 | Separately-shielded and symmetrically-stranded cable resistant to high temperature and with low noise and fabrication method thereof |
| CN108299743A (en) * | 2017-01-13 | 2018-07-20 | 杭州星庐科技有限公司 | Rubber composition and processing method and application, and production fire-retardant product method |
| CN108447596A (en) * | 2018-05-07 | 2018-08-24 | 福建新远东电缆有限公司 | A kind of shoe segmentation cable and preparation method thereof |
| CN114283986A (en) * | 2021-12-21 | 2022-04-05 | 苏州永鼎线缆科技有限公司 | Composite cable and production process thereof |
| CN119905296A (en) * | 2025-01-20 | 2025-04-29 | 广东新亚光电缆股份有限公司 | A fire-resistant low-voltage wire |
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| CN105469860A (en) * | 2015-12-31 | 2016-04-06 | 天长市富信电子有限公司 | Mining power cable and production technology thereof |
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| CN105632595A (en) * | 2015-12-31 | 2016-06-01 | 天长市富信电子有限公司 | Production technology of fire-resistant power cable |
| CN105810356A (en) * | 2016-05-30 | 2016-07-27 | 天津朗兴电线电缆有限公司 | Symmetrically-twisted anti-explosion high-temperature-resistant low-noise cable and manufacturing method thereof |
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| CN108447596A (en) * | 2018-05-07 | 2018-08-24 | 福建新远东电缆有限公司 | A kind of shoe segmentation cable and preparation method thereof |
| CN114283986A (en) * | 2021-12-21 | 2022-04-05 | 苏州永鼎线缆科技有限公司 | Composite cable and production process thereof |
| CN119905296A (en) * | 2025-01-20 | 2025-04-29 | 广东新亚光电缆股份有限公司 | A fire-resistant low-voltage wire |
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Address after: 226000 Jiangsu city of Nantong Province Economic and Technological Development Zone, the New Gate Road Applicant after: Zhongtian RF cable Co., Ltd. Address before: 226000 Nantong economic and Technological Development Zone, the new open road, No. 1, Jiangsu Applicant before: Zhongtian Hitachi RF Cable Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20151230 |