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Self-temperature-limiting heat tracing cable material with high temperature rising speed

A technology of increasing temperature and temperature tracing, applied in the field of self-limiting temperature tracing cable materials, it can solve the problems of poor performance stability and low PTC strength, achieve fast heating effect, slow heat loss, and reduce strength and mechanical properties. the effect of

Inactive Publication Date: 2016-11-23
安徽吉安特种线缆制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, polymer-based PTC materials and polymer heating cables still have defects such as poor performance stability and low PTC strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A self-limiting temperature heating cable material with fast temperature rise, including a PTC core strip, an insulating layer, a metal shielding layer and a wear-resistant sheath layer coated on the outside of the PTC core strip in turn, and the PTC core strip is composed of two It consists of heating wires arranged in parallel and a PTC material layer covering them; the PTC material is made of the following raw materials in parts by weight (kg): polypropylene 30, tin-bismuth alloy powder 6, zinc stearate 0.2, Titanate coupling agent 0.3, nano copper powder 5, carboxylated nitrile powder rubber 9, chlorinated polyethylene 53, polytetrafluoroethylene 15, industrial starch 3, sodium hydroxide 3, rosin 7, calcium lactate 2.2, ethylene glycol Disodium magnesium amine tetraacetate 2.1, white carbon black 5, conductive ceramic powder 9, antioxidant 1010 0.3, appropriate amount of deionized water.

[0014] The self-limiting temperature heating cable material with fast tempera...

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PUM

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Abstract

The invention discloses a self-temperature-limiting heat tracing cable material with high temperature rising speed. The self-temperature-limiting heat tracing cable material comprises a PTC core belt, an insulation layer, a metal shielding layer and a wear-resisting sheath layer, the PTC core belt is sequentially covered with the insulation layer, the metal shielding layer and the wear-resisting sheath layer, and the PTC core belt is composed of two parallel heating wires and a PTC material layer covering the heating wires. A cable prepared from the self-temperature-limiting heat tracing cable material is good in heat preservation performance, slow in heat loss, fast in heating effect, simple in preparation process, wide in raw material source and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a self-limiting temperature tracing heating cable material with fast temperature rise. Background technique [0002] Heat tracing cables are widely used in many fields. For example, in industry, they are mainly used in petroleum, chemical, thermal power plants and other places where liquid substances in pipelines or tanks need to be prevented from solidifying / slow flow. In public facilities, they are mainly used as companions for fire-fighting pipelines. It can be used for indoor heating and anti-freezing of outdoor pipes in winter in civil applications. The core of the heating cable lies in its structure and the PTC material for making its electric heating element. PTC material refers to a heat-sensitive material whose resistance value increases with the increase of temperature, that is, the resistance or resistivity of the material remains basically unchanged or only s...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L13/00C08L23/28C08L27/18C08L3/02C08L93/04C08K13/02C08K3/08C08K5/098C08K5/10C08K3/36C08K3/34C08K5/134H05B3/12H05B3/56
CPCC08L23/12C08L2203/202C08L2205/02C08L2205/035H05B3/12H05B3/56C08L13/00C08L23/286C08L27/18C08L3/02C08L93/04C08K13/02C08K3/08C08K5/098C08K5/10C08K2003/085C08K3/36C08K3/34C08K5/1345
Inventor 董文锋吴永志洪生华荔建荣
Owner 安徽吉安特种线缆制造有限公司
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