A kind of low smoke and zero halogen demagnetization flame-retardant pull tension control cablesTechnical field
The present invention relates to field of cables, relate in particular to a kind of low smoke and zero halogen demagnetization flame-retardant pull tension control cables.
Background technology
At present, this product is mainly used in aerospace field, and such conventional cable mainly adopts silver-plated copper core conductor, the particular/special requirement for aerospace field to cable at present, need to develop many performances and more excellent product, to guarantee aerospace equipment normally operation in particular surroundings.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the object of this invention is to provide one and there is electric, insulation property and ageing-resistant performance preferably, ampacity is large, the low smoke and zero halogen demagnetization flame-retardant pull tension control cables that overload protection performance is stronger.
The present invention takes following technical scheme to realize: a kind of low smoke and zero halogen demagnetization flame-retardant pull tension control cables, it mainly comprises tinned copper wire flexible conductor core, low-smoke halogen-free polyolefin restrictive coating, aluminium strip screen, nonmagnetic metal armour, chloroprene rubber sheath layer and aluminium alloy conductor, described tinned copper wire flexible conductor core is provided with seven groups and twists together, described tinned copper wire flexible conductor core is by a tinned copper wire flexible conductor, be wrapped in one deck cross-linked polyolefin insulating barrier outside tinned copper wire flexible conductor and be extruded in the copper conductor core composition of cross-linked polyolefin insulating barrier inside, outside seven groups of tinned copper wire flexible conductor cores, wrap up one deck low-smoke halogen-free polyolefin restrictive coating, outside described low-smoke halogen-free polyolefin restrictive coating, wrap up one deck aluminium strip screen, outside described aluminium strip screen, wrap up one deck nonmagnetic metal armour, outside described nonmagnetic metal armour, wrap up one deck chloroprene rubber sheath layer, described aluminium strip screen inside is extruded with 16 aluminium alloy conductors.
The present invention has following beneficial effect in sum: the present invention adopts cross-linked polyolefin insulation and sheath; make product there is electric, insulation property and ageing-resistant performance preferably; ampacity is large; overload protection performance is stronger; compared with common demagnetization control cables; the toxic gas that can not discharge Halogen when this product burning, burning light transmittance is little, has excellent fire resistance and environmental-protecting performance.
Brief description of the drawings
Fig. 1 is cross-sectional structure schematic diagram of the present invention;
Wherein: 1, tinned copper wire flexible conductor core; 11, tinned copper wire flexible conductor; 12, cross-linked polyolefin insulating barrier; 13, copper conductor core; 2, low-smoke halogen-free polyolefin restrictive coating; 3, aluminium strip screen; 4, nonmagnetic metal armour; 5, chloroprene rubber sheath layer; 6, aluminium alloy conductor.
Embodiment
As shown in Figure 1, a kind of low smoke and zero halogen demagnetization flame-retardant pull tension control cables, it mainly comprises tinned copper wire flexible conductor core 1, low-smoke halogen-free polyolefin restrictive coating 2, aluminium strip screen 3, nonmagnetic metal armour 4, chloroprene rubber sheath layer 5 and aluminium alloy conductor 6, described tinned copper wire flexible conductor core 1 is provided with seven groups and twists together, described tinned copper wire flexible conductor core 1 is by a tinned copper wire flexible conductor 11, the copper conductor core 13 that is wrapped in one deck cross-linked polyolefin insulating barrier 12 outside tinned copper wire flexible conductor 11 and is extruded in cross-linked polyolefin insulating barrier 12 inside forms, outside seven groups of tinned copper wire flexible conductor cores 1, wrap up one deck low-smoke halogen-free polyolefin restrictive coating 2, outside described low-smoke halogen-free polyolefin restrictive coating 2, wrap up one deck aluminium strip screen 3, outside described aluminium strip screen 3, wrap up one deck nonmagnetic metal armour 4, outside described nonmagnetic metal armour 4, wrap up one deck chloroprene rubber sheath layer 5.
Embodiment: described aluminium strip screen 3 inside are extruded with 16 aluminium alloy conductors 6.
Further, this product adopts multiply tinned copper wire flexible conductor structure, conductor extrudes one deck cross-linked polyolefin insulating barrier 12 outward, form outside seven groups of stranded being integrated of cable core and wrap up again one deck low-smoke halogen-free polyolefin restrictive coating, low-smoke halogen-free polyolefin restrictive coating thickness reaches the thickness of 1cm to 1.5cm, plays the effect of low-smoke non-halogen flame-retardant, can not discharge the toxic gas of Halogen when burning, burning light transmittance is little, has excellent fire resistance and environmental-protecting performance; Outermost sheath adopts chloroprene rubber sheath layer structure.
The above is the embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in the present patent application scope therefore all changes or modifies, and is included in patent claim of the present invention.