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Temp control electric heating cable and producing method

A heating cable and metal conductive wire technology, applied in the field of cables, can solve the problems of large starting current, low heating temperature, unstable performance, etc., and achieve the effects of small starting current, fast heating and starting, and high quality stability.

Inactive Publication Date: 2010-06-23
沈阳瑞华特种电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the 1990s, some scientific research institutes in our country began to develop this product, but the starting current was large, the heating temperature was low, and the performance was unstable.
Although several companies are in trial production, due to the performance of the product itself, it has affected its promotion in the market

Method used

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  • Temp control electric heating cable and producing method
  • Temp control electric heating cable and producing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The temperature-controlled heating cable includes two metal conductive wires 1 arranged in parallel, a PTC material layer 2 , an insulating layer 3 , a shielding layer 4 and a sheath layer 5 . The metal conductive wire 1 is an annealed galvanized copper wire. A PTC material layer 2 is evenly extruded on the two parallel metal conducting wires 1 . The insulating layer 3 is wrapped on the PTC material layer 2 , the shielding layer 4 is wrapped on the insulating layer 3 , and the sheath layer 5 is set on the shielding layer 4 .

Embodiment 2

[0037] The PTC material is composed of 9.8Kg high-pressure low-density polyethylene, 1.9kg acetylene carbon ink, 1.55kg zirconia, 0.019kg4,4'-sulfurized bis(6-tert-butyl-3 methylphenol) and 0.195kg trimethanol Made from propane trimethacrylate.

Embodiment 3

[0039] The PTC material is made of 10.2kg of high-pressure low-density polyethylene, 2.1kg of acetylene carbon black, 1.57kg of zirconia, 0.019kg of 4,4'-bissulfide and 0.198kg of trimethylolpropane trimethacrylate.

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Abstract

This invention relates to a temperature controlled heat accompany cable including two parallel metal conduction leads characterizing in squeezing a PCT layer uniformly on the two leads, setting an insulation layer on the PCT layer, a shield layer on the insulation layer and a jacket on the shield layer. Advantages: 1, realizing continuous production of long temperature controlled heat-accompany cables with stable quality, 2, small starting current, 3, uniform temperature, 4, electric energy saving, quick rising of temperature, 6, low cost in mounting and moving, 7, no environment pollution.

Description

(1) Technical field [0001] The invention relates to a cable, in particular to a temperature-controlled heat tracing cable. (2) Background technology [0002] Temperature-controlled heating cables first appeared in the United States in the early 1980s. At that time, they were mainly used in the petroleum and petrochemical industry. The purpose of reducing conveying resistance. At that time, the world was undergoing a stage of continuous change in the petrochemical industry. New technologies and new products are constantly being applied, and this product is widely and urgently needed by the petroleum and petrochemical industry. It soon shocked the related industries in various countries. Temperature-controlled heating cable, also known as self-limiting temperature heating cable or self-regulating temperature electric heating cable, is a strip-shaped temperature-limiting heating cable whose electric heating power is self-adjusting with the system temperature. Different from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/56H05B1/00H05B3/10H05B3/02
Inventor 邹振轩
Owner 沈阳瑞华特种电缆有限公司
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