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Self-temperature limiting heat tracing belt and manufacturing method thereof

A self-limiting temperature heating cable, heating cable technology, applied in the direction of heating element material, heating element shape, ohmic resistance heating parts, etc., can solve the problem of self-limiting temperature heating cable starting current, unstable performance, heating cable burning problems, to achieve the effect of improving productivity and product quality, performance innovation, and reducing material consumption

Inactive Publication Date: 2012-07-25
王崇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a self-limiting temperature heating cable and its manufacturing method, the purpose of which is to solve the problem of large starting current, serious power attenuation, unstable performance, high energy consumption, and frequent burnout of the existing self-limiting temperature heating cable. problems in terms of

Method used

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  • Self-temperature limiting heat tracing belt and manufacturing method thereof
  • Self-temperature limiting heat tracing belt and manufacturing method thereof
  • Self-temperature limiting heat tracing belt and manufacturing method thereof

Examples

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preparation example Construction

[0049] A kind of preparation method of self-limiting temperature tracing tape is characterized in that: the method is carried out according to the following steps:

[0050] A. Preparation of metal conductive electrodes: using a wire harness machine to twist equal tension stranded wires as metal conductive electrodes 1;

[0051] B. Material selection and preparation of the resin conductor layer: take each raw material for use in the following proportions: 100 parts of low-density polyethylene or high-density polyethylene, 5-12 parts of PE-EVA three-layer anti-aging composite shed film, 40 parts of acetylene carbon black ~45 parts, 0.6~0.8 parts of triallyl isocyanurate, 0.3~0.5 parts of octadecyl (3.5-di-tert-butyl-4-hydroxyphenyl) propionate, bis-thiodipropionate 0.2-0.5 part of dodecyl ester, 0.2-0.3 part of zinc stearate.

[0052] After drying low-density polyethylene or high-density polyethylene at 60-80 ℃ for 2-6 hours, it can effectively prevent the problem of rough surf...

Embodiment 1

[0063]A self-limiting temperature heating cable, the heating cable includes two power transmission metal conductive electrodes 1 arranged in parallel, each metal conductive electrode 1 is covered with a resin conductor layer 2, and the two metal conductive electrodes 1 pass through the resin conductor. The layer 2 is in close contact with the heating body 3 to form a parallel circuit. The heating body 3 is covered with an insulating layer 4, and there is a layer of sheath 6 on the outside of the insulating layer 4. The thickness of the insulating layer 4 is 0.5mm. A shielding layer 5 is arranged between the layer 4 and the sheath 6. The shielding layer 5 is made of tinned copper wire or aluminum-magnesium alloy wire. The resin conductor layer 2 is made of a polymer resin conductive material with a thickness of 0.1 mm. , the resin conductor layer 2 formula is as follows by weight: 100 parts of high-density polyethylene (HDPE), 5 parts of PE-EVA three-layer anti-aging composite s...

Embodiment 2

[0077] A self-limiting temperature heating cable, the heating cable includes two power transmission metal conductive electrodes 1 arranged in parallel, each metal conductive electrode 1 is covered with a resin conductor layer 2, and the two metal conductive electrodes 1 pass through the resin conductor. The layer 2 is in close contact with the heating element 3 to form a parallel circuit. The heating element 3 is covered with an insulating layer 4, and there is a layer of sheath 6 on the outside of the insulating layer 4. The thickness of the insulating layer 4 is 0.7mm. A shielding layer 5 is arranged between the layer 4 and the sheath 6. The shielding layer 5 is made of tinned copper wire or aluminum-magnesium alloy wire. The resin conductor layer 2 is made of a polymer resin conductive material with a thickness of 0.2 mm. , the resin conductor layer 2 formula is as follows by weight: 100 parts of low-density polyethylene, 10 parts of PE-EVA three-layer anti-aging composite s...

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Abstract

The invention relates to a self-temperature limiting heat tracing belt and a manufacturing method thereof. The self-temperature limiting heat tracing belt is characterized by comprising a metal conductive electrode, a resin conductor layer, a heating element and an insulation layer. A shielding layer or a sheath can also be arranged outside the insulation layer. In the invention, the formulas of the resin conductor layer and the heating element are improved, and through the implementation of the technical scheme of the invention, and the problems existing in the aspects that the power attenuation of the traditional heat tracing belt is serious, the starting current of the traditional heat tracing belt becomes big, the heat tracing belt is burnt out frequently, the performance is not stable and the like can be well solved. The invention greatly improves the performance of the heat tracing belt, has the advantages of small starting current and high heattracing belt temperature and is suitable for the industrial application.

Description

1. Technical field: [0001] The invention belongs to the field of explosion-proof electric heating products, and mainly relates to an electric heating device and a manufacturing process, in particular to a self-limiting temperature tracing cable with a double-core and double-layer structure and a manufacturing method thereof. 2. Background technology: [0002] With the advancement of society, the degree of automation has increased, and the application of electric heating and electric heating technology has become more and more extensive. Constant power heating belts and self-limiting temperature heating belts have been used in the industrial field for many years. The structure of this self-limiting temperature heating cable is to coat a layer of PTC heating element on two parallel electrode conductors to form a parallel circuit, and then coat a layer of insulation outside the heating body to form a basic heating element. After the self-limiting temperature tracing cable of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/56H05B3/03H05B3/14B29B7/56B29C47/92B29C48/92
CPCB29C48/154B29C48/92B29C2948/92704B29C2948/92838
Inventor 王崇
Owner 王崇
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