Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Teflon and polyimides combined seamless-wrapping insulated cable for aviation and spaceflight and preparation method of cable

A polytetrafluoroethylene and polyimide technology, used in insulated cables, cable/conductor manufacturing, insulated conductors, etc., can solve problems such as the limitation of insulated cables, improve shielding density, ensure shielding performance, and have a small outer diameter. Effect

Active Publication Date: 2016-02-24
WUHU HANGTIAN SPECIAL CABLE FACTORY
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, insulated cables made of existing materials either have excellent insulation, mechanical strength, high temperature resistance, hydrolysis resistance, and flame retardancy, but it is difficult to make the same insulated cable meet the above characteristics. The existing insulated cables are still subject to considerable restrictions in application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Teflon and polyimides combined seamless-wrapping insulated cable for aviation and spaceflight and preparation method of cable
  • Teflon and polyimides combined seamless-wrapping insulated cable for aviation and spaceflight and preparation method of cable
  • Teflon and polyimides combined seamless-wrapping insulated cable for aviation and spaceflight and preparation method of cable

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The present invention also provides a method for preparing the above-mentioned insulated cable, including:

[0028] 1) Wrap the polyimide composite film on the outside of the wire 1, then wrap the polytetrafluoroethylene film on the outside of the polyimide composite film, and then perform high temperature sintering to form an insulating sleeve on the outside of the wire 1 2;

[0029] 2) Weaving the composite polyimide wire on the outside of the insulating sleeve 2 to form the shielding sleeve 3;

[0030] 3) Wrap the polyimide composite film on the outside of the shielding sleeve 3, then wrap the polytetrafluoroethylene film on the outside of the polyimide film, and then perform high temperature sintering to form the sheath 4;

[0031] Wherein, the composite polyimide yarn contains a polyimide fiber tow and a silver-plated flat copper tape wound on the outer surface of the polyimide fiber tow, and the polyimide composite film includes successive stacking from bottom to bottom ...

preparation example 1

[0035] 1) After the round copper wire is pressed and toughened, a flat copper strip with a thickness of 0.08mm is made, and then a silver-plated flat copper strip with a thickness of 1.5μm is plated to obtain a silver-plated flat copper strip;

[0036] 2) The polyimide fiber tow is made into a polyimide fiber tow with a radius of 0.04mm, and then a silver-plated flat copper tape is wound on the outside of the polyimide fiber tow to obtain a composite polyimide 丝 C1.

preparation example 2

[0038] 1) The round copper wire is pressed and toughened to form a flat copper strip with a thickness of 0.05mm, and then plated with a silver-plated layer with a thickness of 1μm to make a silver-plated flat copper strip;

[0039] 2) The polyimide fiber tow is made into a polyimide fiber tow with a radius of 0.02mm, and then a silver-plated flat copper tape is wound on the outside of the polyimide fiber tow to obtain a composite polyimide C2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a teflon and polyimides combined seamless-wrapping insulated cable for aviation and spaceflight and a preparation method of the cable. The insulated cable comprises a lead (1), an insulation sleeve (2), a shielding sleeve (3) and a sheath (4), wherein the insulation sleeve (2), the shielding sleeve (3) and the sheath (4) sleeve the lead (1) successively from inside to outside, each of the insulation sleeve (2) and the sheath (4) is a teflon film and polyimides composite film combined sleeve, the shielding sleeve (3) is formed by braiding composite polyimides fibers, the composite polymides fibers includes a polyimides fiber bundle and a flat silvered copper strip wound outside the polyimides fiber bundle, and a polyimides composite film comprises a teflon film, a polyimides film and another teflon film which are superposed successively from top to bottom. The insulated cable has excellent insulation performance, high temperature resistance, hydrolysis resistance and flame retardation and is high in the mechanical strength.

Description

Technical field [0001] The invention relates to a cable, in particular to a PTFE / polyimide combined seamless wrapping insulated cable for aerospace and a preparation method thereof. Background technique [0002] With the rapid and violent development of science and technology today and the urgent need of my country's national defense modernization development and construction, the military industry is developing in the direction of high technology and high speed. The technical level of the aviation, aerospace, and ordnance industries represents and symbolizes national defense strength. In order to meet the needs of the rapid development of national defense modernization, the supporting products are constantly updated, and the degree of electrification, automation, and systemization of equipment continues to increase. The use of "blood vessels and nerves" cables is increasing, and newer and higher requirements are put forward for the quality and safety and reliability of products....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01B7/02H01B7/17H01B7/18H01B7/28H01B7/29H01B13/00
Inventor 米春海赵明哲何源杜星吴天凤王徐惠向天波
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com