Polytetrafluoroethylene wave-proof sleeve assembly and preparation method thereof

Abstract

The invention relates to a polytetrafluoroethylene wave-proof sleeve assembly and a preparation method thereof. The polytetrafluoroethylene wave-proof sleeve assembly consists of stainless steel metal connecting pieces assembled at two ends of a polytetrafluoroethylene straight pipe and a stainless steel wire woven layer wrapped on the outer layer. The preparation method comprises the following steps: selecting the polytetrafluoroethylene straight pipe to weave stainless steel wires, binding the stainless steel wires at one end part of the polytetrafluoroethylene straight pipe, and placing a second circular ring of an outer lining of the metal connecting piece outside the stainless steel wire woven layer; plugging an inner lining of the metal connecting piece into the inner wall at one end of the polytetrafluoroethylene straight pipe, and combining an annular plate of the outer lining of the metal connecting piece and a flat plate of the inner lining of the metal connecting piece so as to ensure that the stainless steel wire woven layer is positioned between the inner lining and the outer lining of the metal connecting piece; determining the length of a product, and suit cutting the product; finishing the assembly of the inner lining and the outer lining of the metal connecting piece at the other end; withholding the outer linings of the metal connecting pieces at the two endsof a polytetrafluoroethylene wave-proof sleeve; and carrying out torque performance testing by using a measuring tool, and determining that the distortion phenomena does not happen between the withholding part of the outer lining of the metal connecting piece and the stainless steel wire woven layer so as to obtain the required product. The obtained assembly has the characteristics of high-low temperature resistance, corrosion resistance, ageing resistance, light weight, excellent distortion resistance and the like, and is an ideal electromagnetic shielding pipe for wires and cables.

Description

technical field [0001] The invention relates to a polytetrafluoroethylene anti-wave sleeve assembly and a preparation method thereof. Background technique [0002] Generally, when designing an aircraft, the problem of electromagnetic interference will be considered, and appropriate electromagnetic shielding measures will be taken. Electromagnetic shielding is a measure to enclose the source of electromagnetic interference with metal shielding materials so that the external electromagnetic field strength is lower than the allowable value; or to enclose the electromagnetic sensitive circuit with metal shielding materials so that the internal electromagnetic field strength is lower than the allowable value a measure. Electromagnetic interference includes electrostatic interference and alternating electric field interference. In response to these two kinds of interference, two electromagnetic shielding measures can be taken: 1. Electrostatic shielding, using a complete metal s...

AI Technical Summary

Problems solved by technology

Although the metal tube assembly has the characteristics of high and low temperature resistance, its shortcomings of poor corrosion resistance, heavy weight, and non-disturbing performance make it a fatal flaw as a shielding material for shielding aerospace and aerospace vehicle wires and cables; Engineering plastics, light in weight and excellent in bending performance, but poor in aging resistance, corrosion resistance, high and low temperature resistance, and also have fatal flaws

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