Aerospace anti-interference data transmission cable

Abstract

The invention relates to the technical field of data transmission cables, in particular to an aerospace anti-interference data transmission cable which comprises a signal wire core, the signal wire core is sequentially wrapped with an insulating layer, a shielding layer and a protective jacket, and the shielding layer is formed by nitrogen and the foaming and extruding of ETFE. The preparation method of the aerospace anti-interference data transmission cable comprises the following steps of: S1, preparing a signal wire core, performing extruding and forming through a wire extruder; S2, carrying out tin copper plating or silver copper plating on the signal wire core wire obtained in the step S1 so as to carry out braided shielding; S3, performing pair twisting on a product obtained in the S2, and then performing aluminum foil winding; S4, performing cabling treatment on a product obtained in S3, and then performing aluminum foil winding again; and S5, coating a product obtained in the step S4 with a sheath to form a protective jacket which is obtained by molding an ETFE thin-wall material. According to the aerospace anti-interference data transmission cable of the invention, ETFE physical foaming is adopted, and the obtained cable is thin in insulation thickness, good in shielding effect and excellent in weather resistance.

Description

technical field [0001] The invention relates to the technical field of data transmission cables, in particular to an aerospace anti-interference data transmission cable. Background technique [0002] With the development of mobile devices, due to the increasing requirements for the transmission of large amounts of data between electronic devices, especially in the aerospace field, the transmission flow of electronic signals is large, and in harsh environments such as extremely high and low temperature, high sunlight radiation, etc., the physical requirements for cables Extremely high, while the existing products have poor insulation effect, heavy weight, thick wire diameter, poor bending performance, short service life, low transmission rate, unstable transmission signal, easy to be interfered, and the power core wire in the cable transmits current Small and other shortcomings. [0003] Traditional aviation cables use fluorine-containing plastics-polyperfluoroethylene propy...

AI Technical Summary

Problems solved by technology

[0005] The foam extrusion of ETFE thin-walled insulating layer is difficult to control the insulation thickness and the pore size and uniformity of the pores of the insulating material during the foaming process. The foam extrusion process adopts physical foaming. Melt fracture affects insulation and also affects shielding effect, so how to control the foaming process during extrusion becomes difficult