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Heating cable

A technology for heating cables and wires, which is applied in the manufacture of cables/conductors, circuits, electrical components, etc. It can solve the problems of large limited space, long time required, and slow heating of heating cables. The effect of temperature stabilization

Inactive Publication Date: 2013-08-21
JIANGSU QIDI ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Among the known heating cables, niobium-aluminum alloy is used as the conductor, and polyvinyl chloride is used as the heating cable of the insulating layer and the jacket layer. Electricity increases, safety protection and aging resistance are not high, insulation and outer sheath are easy to age, causing short circuit, limited space is large, not conducive to large-scale laying; heat utilization rate is low and high

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] A heating cable, comprising the following steps:

[0014] 1. Heating: First, heat the integrated machine head and set it as two heating areas, nylon material area and environmental protection material area: the temperature range of nylon material area is 230-260 ° C; the temperature range of environmental protection material area is 180-220 ° C ℃.

[0015] 2. Preheating of environmentally friendly low-smoke halogen-free plastics; heat and preheat the environmentally friendly materials at the same time, the temperature range is 80-100 ° C, and the time does not exceed 3 hours.

[0016] 3. Paying off: Lead the copper conductor core of the electric wire out from the tension pay-off stand, straighten it through the straightener and enter the integrated machine head. The inlet of nylon material area.

[0017] 4. Environmentally friendly low-smoke halogen-free plastic and nylon extrusion coating; environmental protection low-smoke halogen-free plastic and nylon are extruded...

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Abstract

Provided is a heating cable. The manufacture method of the heating cable includes the steps: (1) heating, (2) pre-heating environment-friendly low-smoke-zero-halogen plastics, (3) paying off, (4) extruding and wrapping the environment-friendly low-smoke-zero-halogen plastics and nylon; (5) lettering and cooling, and (6) drying and winding. According to the heating cable, no black smoke is exhausted when the cable is in an open fire, produced harmful substances and poisonous gases are little, the density of smoke under a non-flame state is not higher than 250, and the density of the smoke under a flame state is not higher than 100, the oxygen index is not lower than 30%, hydracid gas release content is not higher than 5mg / g, and the PH vale is not lower than 4.3. The heating cable is suitable for being used in a road of a cold area, a pipeline, a tank body temperature rising ice melting and planting greenhouse, an automobile engine, a house and cables needing to keep warm.

Description

technical field [0001] The invention belongs to the field of electric wires and cables, and is mainly applied to cables for surface protection of petrochemical equipment and parts. Background technique [0002] Among the known heating cables, niobium-aluminum alloy is used as the conductor, and polyvinyl chloride is used as the heating cable of the insulating layer and the jacket layer. Electricity increases, safety protection and aging resistance are not high, insulation and outer sheath are easy to age, causing short circuit, limited space is large, not conducive to large-scale laying; heat utilization rate is low and high. Contents of the invention [0003] Aiming at the environmental protection and safety defects of existing wire and cable products, the purpose of the present invention is to provide a heating cable, which can not only meet the electrical and physical properties stipulated in the national wire and cable standards, but also make the wires have environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/56H01B13/00
Inventor 庄红芳
Owner JIANGSU QIDI ALLOY
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