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

High-temperature resistant fire-retardant co-axial cable

A coaxial cable, high temperature resistance technology, applied in the direction of coaxial cable/analog cable, climate change adaptation, etc. Good physical properties, good weather resistance and long service life

Inactive Publication Date: 2010-10-20
SHENZHEN SUIRONG COAXIAL CABLE TECH
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of technology, the communication frequency band continues to expand, the supported rate is getting higher and higher, and the heat resistance and flame resistance are getting higher and higher. The traditional physical foaming technology can solve the problem of transmission rate very well, but due to The temperature resistance range of foamed polyethylene is between -20 and 80°C. When the cable is used in the high-frequency band, the transmission performance of the cable is greatly reduced due to the heating of the cable itself, and the heat resistance and flame retardancy are poor; traditional fluoroplastics are used Insulation has good heat resistance and flame retardancy, but it is difficult to increase the transmission rate and the material is expensive

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
  • High-temperature resistant fire-retardant co-axial cable
  • High-temperature resistant fire-retardant co-axial cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] refer to figure 1 , a high-temperature-resistant flame-retardant coaxial cable (taking a 50Ω coaxial cable as an example), including a central conductor 1 arranged sequentially from the inside to the outside; an irradiation cross-linked foamed flame-retardant polyethylene insulating layer 2; copper Foil shielding layer 3; copper wire braided outer conductor layer 4; outer sheath layer 5, the processing steps include:

[0018] 1. The central conductor 1 is made of pure copper core wire with a diameter of φ0.94mm;

[0019] 2. Making insulated core wire:

[0020] A) Ingredients, the weight ratio of materials is: 50kg of PE base material with brand 6944; 50kg of PE base material with brand 1253; 10kg of polyethylene series flame retardant masterbatch; 1.8kg of HD101 nucleating agent;

[0021] B) mixing the above materials;

[0022] C) The above-mentioned central conductor and materials are foamed and extruded on a physical foaming machine to extrude an insulated core wir...

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

No PUM Login to View More

Abstract

The invention relates to a high-temperature resistant fire-retardant co-axial cable. The cable comprises, from the inside to the outside, a central conductor, an irradiation crosslinking foaming fire-retardant polyethylene insulation layer, a copper foil shielding layer, a copper wire weaving outer conductor layer and an outer protection layer, wherein PE base materials, together with a proper amount of fire-retardant masterbatch and nucleating agent, undergo foaming extrusion in a physical foaming machine to make insulation core wires, the foaming fire-retardant polyethylene insulation layer prepared by the insulation core wires is irradiated by an electron accelerator, the high-voltage electron beam current generated by the electron accelerator acts on the foaming fire-retardant polyethylene insulation layer, the internal structure of the foaming fire-retardant polyethylene insulation layer is changed from the original chain-shaped macromolecular structure to the three-dimensional network structure, so that the crosslinked foaming fire-retardant polyethylene insulation layer possesses better physical properties, an work at the temperature of 125 DEG C for a long time, and has the advantages of fire-retardant property, high voltage resistance, high weathering resistance, high mechanical property, high transmission property and the like.

Description

Technical field: [0001] The invention relates to a coaxial cable for communication, especially a coaxial cable which can work at 125°C for a long time and has flame-retardant properties. Background technique: [0002] With the continuous advancement of technology, the communication frequency band continues to expand, the supported rate is getting higher and higher, and the heat resistance and flame resistance are getting higher and higher. The traditional physical foaming technology can solve the problem of transmission rate very well, but due to The temperature resistance range of foamed polyethylene is between -20 and 80°C. When the cable is used in the high-frequency band, the transmission performance of the cable is greatly reduced due to the heating of the cable itself, and the heat resistance and flame retardancy are poor; traditional fluoroplastics are used Insulation has good heat resistance and flame retardancy, but it is difficult to increase the transmission rate ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/18
CPCY02A30/00
Inventor 谢榕辉
Owner SHENZHEN SUIRONG COAXIAL CABLE TECH
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