Irradiation cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof

A wire and cable, irradiation technology, applied in the field of wire and cable and its manufacturing, can solve the problems of unfavorable personal safety and fire rescue, no flame retardancy, etc.

Inactive Publication Date: 2003-05-21
孙炜韬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no flame retardant problem
When encountering an accident, there will still be thick smoke, which is not conducive to personal safety and fire rescue

Method used

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  • Irradiation cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof
  • Irradiation cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof
  • Irradiation cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0043] When adding low-smoke halogen-free flame retardant Mg(OH) to 100 parts of polyethylene (LDPE) 2 or AL(OH) 3 100-160 parts, 0.1-0.5 parts of antioxidant 300, and 1-1.5 parts of sensitizer, the cable made of this insulation layer or sheath formula can be used for indoor wire and cable.

example 2

[0045] When adding low-smoke halogen-free flame retardant Mg(OH) to 100 parts of polyethylene (LDPE) 2 or AL(OH) 3 When 100-160 parts, 2-3 parts of carbon black and 0.1-0.5 parts of antioxidant 300, the cables made of this insulating layer or sheath formula are used for outdoor overhead cables.

[0046] Such as figure 1 Shown is the block diagram of the production process of radiation crosslinked low-smoke halogen-free flame-retardant wire and cable of the present invention, according to figure 1 Specifically illustrate the manufacture method of the present invention, it comprises the steps:

[0047] The production method of the radiation crosslinked low-smoke halogen-free flame-retardant wire and cable of the present invention comprises the following steps:

[0048] 1. wire drawing the core metal, wherein the metal can be copper or aluminum;

[0049] 2. Anneal the wire-drawn metal and twist it into a core wire;

[0050] 3. Prepare the insulating layer raw materials, wher...

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PUM

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Abstract

The present invention relates to a kind of irradiation cross-linked low-smoke haloidless fire-resistant wire cable which is resistant to high temperature, abrasion, dehiscence, aging, combustion and is innoxious and has a long operational life and the mothod thereof, in particular the wire cable which is made by means of electronic irritation and using various compounding materials. The wire cable includes core wire, insulating layer and/or jacket whose compounding material includes polyethylene which is added with low-smoke haloidless fire-retardant Mg(OH)2 or Al(OH)3, carbon black, (0.1-0.5) portion of anti-oxygen, metal depressant and sensitizing agent.

Description

technical field [0001] The invention relates to an electric wire and cable and a manufacturing method thereof, in particular, the electric wire and cable are manufactured by irradiation with different material formulations. Background technique [0002] The methods of cable crosslinking are divided into two categories, namely chemical crosslinking and physical crosslinking. Chemical crosslinking is divided into dry crosslinking and warm water crosslinking. Dry cross-linking is to cross-link polyethylene molecular chains after a certain period of time in a high-pressure gas with a temperature of 300-400 °C. Since this kind of cross-linked cable cannot be added with flame-retardant materials, it is not suitable for the manufacture of low-smoke, halogen-free, flame-retardant cross-linked wires and cables. [0003] Warm water cross-linking is to soak the cable in warm water at 90°C for 5-7 hours to cross-link polyethylene molecular chains. This cross-linking method cannot use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/00H01B3/44H01B13/00
Inventor 孙跃明
Owner 孙炜韬
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