CN104112499A

CN104112499A - Irradiation crosslinked fluorine polymer insulating light-weight high-temperature-resistant cable for aerospace

Info

Publication number: CN104112499A
Application number: CN201410313872.3A
Authority: CN
Inventors: 付世财
Original assignee: Anhui Jianghuai Cable Group Co Ltd
Current assignee: Anhui Jianghuai Cable Group Co Ltd
Priority date: 2014-07-03
Filing date: 2014-07-03
Publication date: 2014-10-22

Abstract

The invention discloses an irradiation crosslinked fluorine polymer insulating light-weight high-temperature-resistant cable for aerospace. The cable mainly includes two conductor cable cores, a silver-plated round copper wire braided shielding layer, a crosslinked fluorine polymer insulating layer and a chlorosulfonated polyolefin sheath layer. The two conductor cable cores are formed by intertwisting, each conductor cable core is internally provided with two conductors, the two conductor cable cores are wrapped by the silver-plated round copper wire braided shielding layer, the silver-plated round copper wire braided shielding layer is wrapped by the crosslinked fluorine polymer insulating layer, and the crosslinked fluorine polymer insulating layer is wrapped by the chlorosulfonated polyolefin sheath layer. The cable is easy to lay and install, and is easy to strip, coat with tin and perform terminal processing; and macromolecules are of a linear structure before irradiation, after irradiation crosslinking, bond connection is formed between the macromolecules and thereby forming a three-dimensional reticulate structure, mechanical and physical properties of the insulating layer after irradiation crosslinking can be greatly improved, temperature resistance can be improved to 200 DEG C, and the cable is crack-resistant and radiation-resistant.

Description

Cross-linking radiation fluoropolymer insulated light high temperature-resistant cable for a kind of space flight

Technical field

The invention belongs to field of cables, relate in particular to a kind of space flight cross-linking radiation fluoropolymer insulated light high temperature-resistant cable.

Background technology

The support of the too busy to get away high-performance of development of aeronautical and space technology, high-quality field cable is supporting, and Aero-Space are exactly the demand for existing market with the development of cross-linking radiation fluoropolymer insulated light high temperature-resistant cable.Aero-Space have reached the technical performance of the like product of MILSTD MIL-W-22759 by its technical performance of cross-linking radiation fluoropolymer insulated light high temperature-resistant cable, possesses better flexibility and adaptability, have more perfection compared with No. 55 lines of U.S.'s Raychem, belong to the top product of current military electric wire.Its special construction has solved many problems that aerospace wire and cable run into, and comprises size, weight, fire-retardant, durable, mechanical strength and the opposing to chemical environment.This space-saving insulating barrier well meets the airborne and requirement of satellite borne equipment to space and weight, and provides safe and reliable machinery and chemical property for aircraft and plant equipment.

Summary of the invention

In order to overcome the defect of above-mentioned prior art, the invention provides a kind of space flight cross-linking radiation fluoropolymer insulated light high temperature-resistant cable.

The present invention takes following technical scheme to realize: cross-linking radiation fluoropolymer insulated light high temperature-resistant cable for a kind of space flight, it mainly comprises two groups of conductor cable cores, silver-plated round copper wire woven shield, crosslinked fluoropolymer insulating barrier and chlorosulfonated polyolefin restrictive coating, described conductor cable core is stranding into two groups, every group of conductor cable core inside is provided with and is arranged in 10 silver-plated copper conductors of center and outer field 16 groups of tinned copper conductor cores of silver-plated copper conductor, outside 10 silver-plated copper conductors, wrap up the ethylene propylene rubber insulated layer of one deck, outside described ethylene propylene rubber insulated layer, wrap up successively one deck copper strips armour, one deck cross-linked ethylene copolymer tetrafluoroethylene insulating barrier and one deck chloroprene rubber sheath layer, 16 groups of described tinned copper conductor cores are evenly extruded between copper strips armour and cross-linked ethylene copolymer tetrafluoroethylene insulating barrier.

Outside two groups of conductor cable cores, wrap up the silver-plated round copper wire woven shield of one deck, outside described silver-plated round copper wire woven shield, wrap up the crosslinked fluoropolymer insulating barrier of one deck, outside described crosslinked fluoropolymer insulating barrier, wrap up one deck chlorosulfonated polyolefin restrictive coating.

Described silver-plated round copper wire woven shield internal structure is space network.

Described crosslinked fluoropolymer insulating barrier internal structure is space network.

The present invention has following beneficial effect in sum: this kind of easy laying installation of cable, flexibly bending, easily wire stripping, tining and do terminal processes; The large molecule of predose is after linear structure, cross-linking radiation, between large molecule, to produce key to be connected to form space network, and after cross-linking radiation, the mechanical and physical performance of insulating barrier is greatly improved, and heatproof degree has been brought up to 200 DEG C, resistance to cracking, radiation hardness.

Brief description of the drawings

Fig. 1 is cross-sectional structure schematic diagram of the present invention;

Wherein: 1, conductor cable core; 11, silver-plated copper conductor; 12, ethylene propylene rubber insulated layer; 13, copper strips armour; 14, cross-linked ethylene copolymer tetrafluoroethylene insulating barrier; 15, chloroprene rubber sheath layer; 16, tinned copper conductor core; 2, silver-plated round copper wire woven shield; 3, crosslinked fluoropolymer insulating barrier; 4, chlorosulfonated polyolefin restrictive coating.

Embodiment

As shown in Figure 1, cross-linking radiation fluoropolymer insulated light high temperature-resistant cable for a kind of space flight, it mainly comprises two groups of conductor cable cores 1, silver-plated round copper wire woven shield 2, crosslinked fluoropolymer insulating barrier 3 and chlorosulfonated polyolefin restrictive coating 4, described conductor cable core 1 is stranding into two groups, every group of conductor cable core 1 inside is provided with and is arranged in 10 silver-plated copper conductors 11 of center and outer field 16 groups of tinned copper conductor cores 16 of silver-plated copper conductor 11, outside 10 silver-plated copper conductors 11, wrap up the ethylene propylene rubber insulated layer 12 of one deck, outside described ethylene propylene rubber insulated layer 12, wrap up successively one deck copper strips armour 13, one deck cross-linked ethylene copolymer tetrafluoroethylene insulating barrier 14 and one deck chloroprene rubber sheath layer 15, 16 groups of described tinned copper conductor cores 16 are evenly extruded between copper strips armour 13 and cross-linked ethylene copolymer tetrafluoroethylene insulating barrier 14.

Embodiment: wrap up the silver-plated round copper wire woven shield 2 of one deck outside two groups of conductor cable cores 1, outside described silver-plated round copper wire woven shield 2, wrap up the crosslinked fluoropolymer insulating barrier 3 of one deck, outside described crosslinked fluoropolymer insulating barrier 3, wrap up one deck chlorosulfonated polyolefin restrictive coating 4.

Further, described silver-plated round copper wire woven shield 2 internal structures form space network through irradiation.

Further, described crosslinked fluoropolymer insulating barrier 3 internal structures form space network, wall thickness 0.45-0.80mm through irradiation; Crosslinked fluoropolymer insulating barrier 3 is by continuing under 300 DEG C of conditions the acceleration high temperature ageing experiment of 7 hours; It is the twice of general ETFE structure wire that longitudinal incision is had to very strong resistance, the saturating power of high-temperature machining with friction; Chlorosulfonated polyolefin restrictive coating 4 wall thickness 0.25-0.45mm.

Further, silver-plated copper conductor 11 cross sections are less than 16 mm ², be greater than 12 mm ²; Tinned copper conductor cross section is less than 8 mm ², be greater than 6 mm ²; The permission bending radius of this cable is the outside diameter of cable 6 times.

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.

Claims

1. a cross-linking radiation fluoropolymer insulated light high temperature-resistant cable for space flight, it mainly comprises two groups of conductor cable cores, silver-plated round copper wire woven shield, crosslinked fluoropolymer insulating barrier and chlorosulfonated polyolefin restrictive coating, it is characterized in that: described conductor cable core is stranding into two groups, every group of conductor cable core inside is provided with and is arranged in 10 silver-plated copper conductors of center and outer field 16 groups of tinned copper conductor cores of silver-plated copper conductor, outside 10 silver-plated copper conductors, wrap up the ethylene propylene rubber insulated layer of one deck, outside described ethylene propylene rubber insulated layer, wrap up successively one deck copper strips armour, one deck cross-linked ethylene copolymer tetrafluoroethylene insulating barrier and one deck chloroprene rubber sheath layer, 16 groups of described tinned copper conductor cores are evenly extruded between copper strips armour and cross-linked ethylene copolymer tetrafluoroethylene insulating barrier, outside two groups of conductor cable cores, wrap up the silver-plated round copper wire woven shield of one deck, outside described silver-plated round copper wire woven shield, wrap up the crosslinked fluoropolymer insulating barrier of one deck, outside described crosslinked fluoropolymer insulating barrier, wrap up one deck chlorosulfonated polyolefin restrictive coating.

2. cross-linking radiation fluoropolymer insulated light high temperature-resistant cable for space flight according to claim 1, is characterized in that: described silver-plated round copper wire woven shield internal structure is space network.

3. cross-linking radiation fluoropolymer insulated light high temperature-resistant cable for space flight according to claim 1, is characterized in that: described crosslinked fluoropolymer insulating barrier internal structure is space network.