一种耐磨性好的示踪线

By improving the structure of the tracer line, adopting a design with a copper-clad steel conductive core, double insulation layer, reinforcing layer, wear-resistant layer, and protective outer layer, the problems of easy wear and corrosion of the tracer line during construction were solved, achieving tensile strength and stable signal transmission, extending service life and reducing maintenance costs.

CN224519542UActive Publication Date: 2026-07-17SHANDONG HENGCHUANG POWER EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HENGCHUANG POWER EQUIP CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing tracer lines are prone to wear and corrosion during construction, which can lead to exposure of the conductive core, affecting signal transmission. They also have insufficient tensile strength, are easy to break, have a short service life, and high maintenance costs.

Method used

The structure features a copper-clad steel conductive core, a double-layer insulation layer, a reinforcing layer, a wear-resistant layer, and a protective outer layer. The conductive core is composed of high-strength steel wire and a copper layer. The insulation layer is made of double-layer high-density cross-linked polyethylene material. The reinforcing layer is woven from aramid fiber filaments. The wear-resistant layer is made of polyurethane material containing silicon carbide particles. The protective outer layer is made of polyethylene material with spiral raised stripes.

Benefits of technology

It significantly enhances the tensile strength and abrasion resistance of the tracer line, prevents corrosion, ensures stable signal transmission, extends service life, and reduces maintenance frequency and cost.

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    Figure CN224519542U_ABST
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Abstract

本实用新型公开了一种耐磨性好的示踪线,涉及示踪线技术领域,该示踪线从内到外依次包括导电芯、绝缘层、加强层、耐磨层和防护外层,导电芯采用铜包钢材质,绝缘层为双层结构,加强层由高强度纤维丝编织而成,耐磨层采用添加碳化硅颗粒的聚氨酯材料,防护外层为表面有螺旋状凸起条纹的聚乙烯材质,本实用新型通过各层结构的合理设计和材料选择,显著提高了示踪线的耐磨性、抗拉强度、绝缘性能、耐腐蚀性和抗压性能,延长了使用寿命,能更好地满足地下管线工程中示踪线的使用需求。
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Claims

1. A tracer wire having good abrasion resistance, characterized by comprising: From the inside out, it includes a conductive core (1), an insulating layer (2), a reinforcing layer (3), a wear-resistant layer (4), and a protective outer layer (5). The conductive core (1) is made of copper-clad steel and consists of high-strength steel wire inside and a highly conductive copper layer wrapped outside. The insulating layer (2) has a double-layer structure, with high-density polyethylene material in the inner layer and cross-linked polyethylene material in the outer layer. The reinforcing layer (3) is woven from multiple high-strength fiber filaments. The protective outer layer (5) is made of polyethylene and has spiral raised stripes (6) on its surface.

2. The tracer wire according to claim 1, wherein The high-strength fiber filament of the reinforcing layer (3) is aramid fiber filament, and the aramid fiber filament forms the reinforcing layer (3) by plain weave or twill weave.

3. The tracer wire of claim 1, wherein the wire has a good abrasion resistance. The silicon carbide particles in the wear-resistant layer (4) have a particle size of 50-100 μm.

4. The tracer wire of claim 1, wherein, The spiral raised stripes (6) on the surface of the protective outer layer (5) have a pitch of 5-10 mm and a raised height of 1-3 mm.

5. The tracer wire of claim 1, wherein the wire has a good abrasion resistance. The thickness of the copper layer in the conductive core (1) is 0.1-0.3 mm, and the diameter of the internal high-strength steel wire is 0.5-1.0 mm.

6. The tracer wire of good abrasion resistance according to claim 1, wherein, The inner layer of the insulation layer (2) has a high-density polyethylene material thickness of 0.2-0.5 mm and an outer layer of cross-linked polyethylene material thickness of 0.3-0.6 mm; the reinforcing layer (3) has a thickness of 0.1-0.3 mm; the wear-resistant layer (4) has a thickness of 0.3-0.8 mm; and the protective outer layer (5) has a thickness of 0.4-1.0 mm.