Cold resistant and high-temperature resistant aerospace cable

Abstract

A cold resistant and high-temperature resistant aerospace cable of the present invention comprises a filling core, a plurality of wire cores are uniformly distributed on the exterior of the filling core along a circumferential direction, and a wrapping layer, a fireproof layer, a shielding layer and an irradiation cross-linked polyolefin outer sheath which are distributed orderly from inside to outside wrap the exteriors of the plurality of wire cores jointly. The elastic flexible pipes are extruded between the adjacent wire cores, a row of galvanized steel wire ropes is arranged in front of the adjacent wire cores, and a butyronityile insulating sheath wraps the exterior of the row of galvanized steel wire ropes jointly. Hemp ropes are filled between the wire cores and the wrapping layer,and each wire core comprises a conductor and an irradiation cross-linked polyolefin insulating layer. Compared with a conventional cable, the cold resistant and high-temperature resistant aerospace cable of the present invention has the more excellent cold resistance, high-temperature resistance and flame resistance, can guarantee the long-term work under a high temperature or low temperature environment, enables the working time under a fire hazard condition to be prolonged effectively, guarantees the safety of the internal structures of the cable, is strong in resistance to tension, can cope with the complex environments, such as the weightlessness, etc., and facilitates the aerospace work.

Description

Technical field [0001] The invention relates to the technical field of cables, in particular to a cold- and high-temperature-resistant aerospace cable. Background technique [0002] In aerospace operations, due to the use of many electronic devices, it is necessary to connect various components through cables. Due to the particularity of the working environment, when electronic devices are working in aviation, the temperature difference between day and night is large, which is easy to damage the internal structure of the cable. At the same time, due to the uncertainty of aerospace work, once the cable causes a fire and causes the components to fail to work, it will seriously endanger the astronauts. Due to the safety of life and weightlessness and other factors, aviation cables need to be able to withstand a certain degree of tensile strength, and the existing cables can no longer meet the requirements. Summary of the invention [0003] In order to avoid and solve the above techn...

AI Technical Summary

Problems solved by technology

Due to the particularity of the working environment, when electronic devices work in aviation, the temperature difference between day and night is large, which is easy to damage the internal structure of the cable. At the same time, due to the uncertainty of aerospace work, once the cable catches fire and the components cannot work normally, it will seriously endanger the astronauts. The safety of life, weightlessness and other factors, aviation cables need to be able to withstand a certain tensile force, the existing cables can no longer meet the requirements

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