High-temperature and high-voltage resistant lead for aviation and preparation method thereof

A high-voltage wire and high-temperature-resistant technology, which is applied in the direction of cable/conductor manufacturing, conductors, and conductive materials, can solve the problems of not being able to withstand high temperatures of 400 ° C, and achieve the effect of meeting the requirements of high-temperature and high-voltage resistance and good voltage resistance.

Pending Publication Date: 2020-01-24
西安飞机工业(集团)亨通航空电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the aviation wires in the prior art cannot withstand high temperature of 400°C and high voltage of 10kV, the present invention provides a high temperature and high voltage resistant wire for aviation and its preparation method. The 10kV high-voltage ignition wire can meet the requirements of other electrical and mechanical performance indicators. At the same time, the wire has a high temperature resistance of 400°C, heat resistance, softness, bending resistance, and easy installation. It has a long service life and can be used in the high-temperature cabin of an aero-engine.

Method used

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  • High-temperature and high-voltage resistant lead for aviation and preparation method thereof
  • High-temperature and high-voltage resistant lead for aviation and preparation method thereof
  • High-temperature and high-voltage resistant lead for aviation and preparation method thereof

Examples

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Embodiment 1

[0032] Example 1, combined with figure 1 , Parameter performance comparison table, process parameter table for description.

[0033] A high temperature and high voltage wire for aviation, refer to the performance parameter comparison table, process table and attached figure 1 The specific instructions are as follows:

[0034] It includes a 25% nickel-copper alloy-plated stranded conductor 1, and the 25% nickel-copper alloy-plated stranded conductor 1 is wrapped with a high-temperature and fire-resistant inner insulating layer 2;

[0035] The inner insulating layer 2 is cross-wrapped with three materials including polyperfluoroethylene propylene, polyimide, and polytetrafluoroethylene as the outer insulating layer 3.

[0036] Further, the inner insulating layer 2 is a double-sided synthetic mica tape with a thickness of 1.0 mm; the outer insulating layer and the inner insulating layer are formed by high-temperature sintering. The mica tape is synthesized from mineral mica, magnesium ...

Embodiment 3

[0074] Example 3, combined with figure 1 , Example 2, parameter performance comparison table, process parameter table are described.

[0075] A high temperature and high voltage wire for aviation, refer to the performance parameter comparison table, process table and attached figure 1 The specific instructions are as follows:

[0076] Including a 32% nickel-copper alloy-plated stranded conductor, the 32% nickel-copper alloy-plated stranded conductor is wrapped with a high-temperature and fire-resistant inner insulating layer;

[0077] The inner insulating layer is cross-wrapped with three materials of polyperfluoroethylene propylene, polyimide, and polytetrafluoroethylene as the outer insulating layer.

[0078] Further, the inner insulating layer is a high-temperature and fire-resistant double-sided synthetic mica tape with a thickness of 1.2 mm; the outer insulating layer and the inner insulating layer are formed by high-temperature sintering.

[0079] Further, the outer insulating l...

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Abstract

The invention relates to a high-temperature and high-voltage resistant lead for aviation and a preparation method thereof. The high-temperature and high-voltage resistant lead comprises a plating 25%-32% nickel-copper alloy stranded conductor. The plating 25%-32% nickel-copper alloy stranded conductor is wrapped with a high-temperature resistant and fire-resistant internal insulating layer. The internal insulating layer is externally cross-wrapped with three composite tapes of polyperfluoroethylene propylene, polyimide and polytetrafluoroethylene in the forward and reverse directions as the outer insulating layer. The lead obtained by conductor twisting, wrapping inner insulation, wrapping outer insulation and insulation sintering methods has high overall tensile strength and has the performance of resisting 400 DEG C high temperature of the lead. The sintered formed lead can seal the insulating layer of the lead so that the lead has very high moisture and heat resistance.

Description

Technical field [0001] The invention relates to the technical field of conductor cables for aviation, in particular to a high temperature and high voltage resistant wire for aviation and a preparation method thereof. Background technique [0002] With the development of China's aviation industry technology, new products and equipment are constantly being updated, and related supporting electronic components also need to be upgraded to meet the needs of supporting aviation equipment. Special aviation cables are an essential element of aviation equipment. Devices also need to be continuously upgraded and developed. According to expert predictions, the total output value of domestic aviation cable demand in 30 years will exceed 30 billion yuan. In response to the development trend of aviation special cables, especially the high temperature and high pressure resistance of aero engine cabins Ignition wires, most of the ignition wires currently produced on the market cannot meet the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/18H01B7/29H01B7/28H01B7/04H01B5/08H01B1/02H01B7/02H01B3/44H01B13/02H01B13/10
CPCH01B1/026H01B3/441H01B5/08H01B7/0258H01B7/043H01B7/1875H01B7/28H01B7/29H01B13/02H01B13/10
Inventor 余小葵纪宏生张金成陈参波乔琳杨拓
Owner 西安飞机工业(集团)亨通航空电子有限公司
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