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Strip marked polyimide composite membrane wire and cable for aerospace and preparation technology

An aerospace and polyimide technology, which is applied in the field of polyimide composite film wire and cable for aerospace stripe marking and its preparation process, can solve the problems of greatly increased cost, mixed wire and cable, and difficulty in distinguishing, and achieves Effects of low smoke generation, weight reduction, and excellent mechanical properties

Inactive Publication Date: 2012-10-10
GUANGZHOU KAIHENG SPECIAL WIRE & CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wires and cables with different coating materials without identification are mixed, which is very difficult to distinguish, and the cost of recycling is greatly increased.

Method used

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  • Strip marked polyimide composite membrane wire and cable for aerospace and preparation technology
  • Strip marked polyimide composite membrane wire and cable for aerospace and preparation technology
  • Strip marked polyimide composite membrane wire and cable for aerospace and preparation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, it is a schematic structural view of the electric wire (containing a single insulated core wire, without a sheath layer) of the present invention, an insulating layer 2 covering the conductor is arranged outside the conductor 1 formed by twisting, and an insulating layer 2 is arranged on the outer surface of the insulating layer 2 Printed with a spiral stripe logo 3;

[0030] Its preparation process is as follows:

[0031] 1) Conductor stranding: use annealed silver-plated (nickel) copper conductors for stranding with a pitch ratio of less than 20;

[0032] 2) Insulation wrapping: the inner layer is wrapped with polyimide / PTFE composite film tape, the outer layer is tightly wrapped with polytetrafluoroethylene raw material tape, and the overlapping rate of wrapping is above 50.5%;

[0033] 3) Insulation sintering: the wrapped semi-finished wire is sintered and solidified into a dense insulating layer through a sintering furnace;

[0034] 4)...

Embodiment 2

[0038] Such as figure 2 As shown, it is a structural schematic diagram of the cable (composed of a single insulated core wire, a shielding layer and a sheath layer) of the present invention, an insulating layer 2 covering the conductor is provided outside the conductor 1 formed by twisting, and an insulating layer 2 is arranged on the insulating layer 2 A shielding layer 3 is provided on the outside, and a sheath layer 4 is covered on the shielding layer 3 , and a spiral stripe logo 5 is printed on the outer surface of the sheath layer 4 .

[0039] Its preparation process is as follows:

[0040] 1) Conductor stranding: use annealed silver-plated (nickel) copper conductors for stranding with a pitch ratio of less than 20;

[0041] 2) Insulation wrapping: the inner layer is wrapped with polyimide / PTFE composite film tape, the outer layer is tightly wrapped with polytetrafluoroethylene raw material tape, and the overlapping rate of wrapping is above 50.5%;

[0042] 3) Insulati...

Embodiment 3

[0050] Such as image 3 As shown, it is a structural schematic diagram of the cable (composed of two insulated core wires and a sheath layer) of the present invention, an insulating layer 2 covering the conductor is arranged outside the conductor 1 formed by twisting, and the conductor 1 and the insulating layer 2 are composed of The insulated core wire is covered with a sheath layer 3 on the insulating layer 2, and a spiral stripe logo 4 is printed on the outer surface of the sheath layer 3.

[0051] Its preparation process is as follows:

[0052] 1) Conductor stranding: use annealed silver-plated (nickel) copper conductors for stranding with a pitch ratio of less than 20;

[0053] 2) Insulation wrapping: the inner layer is wrapped with polyimide / PTFE composite film tape, the outer layer is tightly wrapped with polytetrafluoroethylene raw material tape, and the overlapping rate of wrapping is above 50.5%;

[0054] 3) Insulation sintering: the wrapped semi-finished wire is s...

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Abstract

The invention discloses a strip marked polyimide composite membrane wire and cable for aerospace, the wire and cable are characterized in that in terms of the strip marked polyimide composite membrane wire for aerospace formed directly by single insulation core wire, spiral strip marks are arranged on the insulation layer; in terms of the strip marked polyimide composite membrane cable for aerospace consisting of a single insulation core wire, a shielding layer and a sheath layer, spiral strip marks are arranged on the sheath layer; in terms of the strip marked polyimide composite membrane cable for aerospace consisting of multiple insulation core wires, a shielding layer and a sheath layer, spiral strip marks are arranged on the insulation layer and / or sheath layer; and in terms of the strip marked polyimide composite membrane cable for aerospace consisting of a plurality of insulation core wire and a sheath layer, the spiral strip marks are arranged on the insulation layer and / or sheath layer. The wire or cable provided by the invention is easily identified; the quality problem of the wire can be conveniently tracked; and meanwhile, the wire and cable provided by the invention have good mechanical performance, flame retardant performance and excellent radiation resistance.

Description

technical field [0001] The invention relates to a polyimide composite film electric wire and cable for stripe marking used in aerospace and a preparation process thereof. Background technique [0002] The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's wire and cable output has surpassed that of the United States, becoming the world's largest producer of wire and cable. With the rapid development of my country's wire and cable industry, the number of new enterprises is increasing, the product categories are becoming more and more diversified, and the classification and recycling of products will become more complicated. [0003] In recent years, the wire and cable industry has more clearly defined the "green" product standards. Product standards such as halogen-free, low-smoke, flame-retardant, and lead-free have become the ...

Claims

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Application Information

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IPC IPC(8): H01B7/36H01B7/17H01B7/295H01B7/02H01B13/34
Inventor 黄淑贞张兆文
Owner GUANGZHOU KAIHENG SPECIAL WIRE & CABLE
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