CN214123555U

CN214123555U - Corrosion-resistant copper-plated steel grounding stranded wire

Info

Publication number: CN214123555U
Application number: CN202120260429.XU
Authority: CN
Inventors: 姚海涛
Original assignee: Changzhou Shangyou Electric Power Technology Co ltd
Current assignee: Changzhou Shangyou Electric Power Technology Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-03
Anticipated expiration: 2031-01-29

Abstract

The utility model relates to a corrosion-resistant copper-plated steel ground connection stranded conductor, copper-plated steel ground connection stranded conductor is formed for the circular shape monofilament system by a plurality of strands of cross sections, the monofilament includes sandwich layer, wearing layer and electrically conductive anticorrosive coating, the sandwich layer is fan-shaped, the radius is the same and the angle is 45 the same core of structure by a plurality of cross sections and constitutes, through shape and the structure that changes core and monofilament, increases the coating of various different properties, has solved the easy problem of being corroded, easily wearing and tearing of current earth conductor, life is short.

Description

Corrosion-resistant copper-plated steel grounding stranded wire

Technical Field

The utility model relates to a ground connection stranded conductor technical field specifically is a corrosion-resistant copper-plated steel ground connection stranded conductor.

Background

The copper-clad steel grounding stranded wire is a horizontal grounding body with high requirements on working grounding, protective grounding, lightning protection grounding and anti-static grounding in general environment, special environment in which chemical corrosion media are generated by damp, saline-alkali and acidic soil poles, and the like. Therefore, the charged cloud layer and the lightning rod form a passage, and the lightning rod is grounded, so that the lightning rod can guide the charges on the cloud layer into the ground, and the high-rise building is not dangerous.

The applicable environment of the existing copper-plated steel grounding stranded wire generally has higher requirements on the plasticity and corrosion resistance of the copper-plated steel grounding stranded wire, and the existing product is often short in service life and often needs to be replaced because of low plasticity, easy corrosion and easy abrasion, so that the prior art still needs to be developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrosion-resistant copper-plated steel ground connection stranded conductor to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the copper-plated steel grounding stranded wire is formed by stranding a plurality of strands of monofilaments with circular cross sections, and each monofilament sequentially comprises a core layer, a wear-resistant layer and a conductive anticorrosive layer from an inner layer to an outer layer;

the cross section of the core layer is circular and is composed of a plurality of cores with the same structure, the cross section of each core is fan-shaped, the central angles of the cores are connected, the outer side of each core is coated with an electrolytic copper layer, the purity of the electrolytic copper is as high as 99.9 percent, the electrolytic copper can be regarded as pure copper, 8 cores coated with the electrolytic copper layers form the core layer with the circular cross section, and the conductivity of the copper is far stronger than that of steel, so that the conductivity of the core layer can be greatly improved by the structure, meanwhile, the plasticity of the copper is excellent, and the plasticity of the core layer can be greatly enhanced by the structure;

the surface of the core layer is sequentially coated with the wear-resistant layer and the conductive anticorrosive layer from inside to outside, the wear-resistant layer can enhance the overall strength and wear resistance of the product, and the conductive anticorrosive layer can greatly enhance the anticorrosive performance of the product and prolong the service life of the product.

Optionally, the number of the cores is 8, and the central angle of the core is 45 °.

Optionally, the diameter of each monofilament is 3.5mm-5.9mm, and the monofilament has different conductivity due to different diameters, so that the monofilament can adapt to different use conditions.

Optionally, the core is made by the steel material of carbon content 3%, makes steel material hardness high enough at carbon content 3%, and intensity is also higher, more is applicable to the complicated operating mode of environment.

Optionally, the number of the monofilaments is set to be 3, 7, 19 or 37.

Optionally, the wear-resistant layer is made of a cobalt-based alloy, the cobalt-based alloy is a hard alloy capable of resisting various types of wear and corrosion and high-temperature oxidation, and the cobalt-based alloy takes cobalt as a main component and contains a considerable amount of nickel, chromium, tungsten and a small amount of molybdenum, titanium, lanthanum and other alloy elements; the cobalt-based alloy is classified according to the use purpose, and can be classified into a cobalt-based wear-resistant alloy, a cobalt-based high-temperature-resistant alloy and a cobalt-based wear-resistant and aqueous solution corrosion-resistant alloy.

Optionally, the conductive anticorrosive layer is a nickel-silver alloy coating, the nickel-silver alloy is a silver alloy prepared by adding nickel into silver, crystal grains can be refined by adding a small amount of nickel, the hardness, wear resistance and burning loss resistance of the silver are improved, the silver-nickel alloy electric contact material has good electrical conductivity and thermal conductivity, the metal transfer resistance, arc burning loss resistance, electrical erosion resistance and other capabilities are strong, the wear resistance is good, the strength is high, the ductility and the cutting processing capability are good, and a small amount of rare earth elements can be added into the silver-nickel alloy to improve the performance of the silver-nickel alloy.

Optionally, the thickness of the electrolytic copper layer is greater than the thickness of the wear-resistant layer and the thickness of the conductive corrosion-resistant layer, preferably, the thickness of the conductive corrosion-resistant layer is greater than the thickness of the wear-resistant layer, the conductivity of the grounding stranded wire can be greatly increased by the electrolytic copper layer, meanwhile, the hardness of the grounding stranded wire can be guaranteed by the cooperation of the electrolytic copper layer and the carbon-containing steel, therefore, the electrolytic copper layer is set as the thickest layer in the plating layer, the conductive corrosion-resistant layer is in direct contact with the external environment, the corrosion resistance of the grounding stranded wire can be guaranteed by a certain thickness, the wear-resistant layer for increasing the wear resistance of the grounding stranded wire is designed between the conductive corrosion-resistant layer and the electrolytic copper layer, the wear resistance of the whole product can be protected by the conductive corrosion-resistant layer, and the wear resistance of the whole product can be increased.

The utility model discloses a change the core of size, the design isostructure of monofilament to the combination adopts the steel material of special customization carbon content 3%, and different alloy coating, can satisfy the normal work of earth connection stranded conductor under complicated operating mode, solved current prior art's earth connection stranded conductor plasticity not high, perishable, easy by wearing and tearing, problem that life is short.

Compared with the prior art, the utility model provides a corrosion-resistant copper-plated steel ground connection stranded conductor possesses following beneficial effect:

the utility model discloses a change the core of size, the design isostructure of monofilament, improved the holistic plasticity of product to the combination adopts the steel material of special customization carbon content 3%, and the alloy coating of difference, can satisfy the normal work of ground stranded conductor under complicated operating mode, and corrosion resistance is strong, and wearability is strong, long service life.

Drawings

Fig. 1 is a schematic cross-sectional view of a single wire of a corrosion-resistant copper-plated steel ground strand provided by the present invention;

fig. 2 is a schematic cross-sectional view of a corrosion-resistant copper-plated steel grounding strand provided by the present invention;

fig. 3 is the utility model provides a pair of corrosion-resistant copper-plated steel ground connection stranded conductor's spatial structure sketch map.

In the figure: 1. a monofilament; 2. a core body; 3. a wear layer; 4. a conductive corrosion resistant layer; 5. a core layer; 6. and (4) electrolyzing the copper layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example (b): as shown in fig. 1-3, the utility model provides a corrosion-resistant copper-plated steel ground stranded wire, the copper-plated steel ground stranded wire is formed by stranding a plurality of round monofilaments 1 with cross sections, the diameter of the monofilament 1 is 4.2mm, the number of the monofilaments 1 is set to 7, the monofilament 1 sequentially comprises a core layer 5, a wear-resistant layer 3 and a conductive anticorrosive layer 4 from an inner layer to an outer layer, the cross section of the core layer 5 is round, the core layer 5 comprises 8 core bodies 2, the cross section of each core body 2 is fan-shaped, the central angle of each core body 2 is 45 degrees, the central angles of the core bodies 2 are connected, the core bodies 2 are made of steel materials with 3 percent of carbon content, the outer side of each core body 2 is coated with an electrolytic copper layer 6, the surface of the core layer 5 is sequentially coated with the wear-resistant layer 3 and the conductive anticorrosive layer 4 from the inside to the outside, the wear-resistant layer 3 adopts a cobalt-based alloy coating, the conductive anticorrosive layer 4 adopts a nickel-silver alloy coating, the thickness of the plating layer is sequentially an electrolytic copper layer, a conductive anticorrosive layer and a wear-resistant layer from thick to thin.

The utility model discloses a change different sandwich layer shapes, the monofilament of design difference is constituteed, utilizes the alloy coating of different performance, makes the application scope of ground connection stranded conductor in various different operating modes more extensive, has improved ground connection stranded conductor's corrosion resistance and wearability greatly, has prolonged the life of product better.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a corrosion-resistant copper-plated steel ground connection stranded conductor which characterized in that: the copper-plated steel grounding stranded wire is formed by stranding a plurality of strands of monofilaments with circular cross sections, and each monofilament sequentially comprises a core layer, a wear-resistant layer and a conductive anticorrosive layer from an inner layer to an outer layer;

the cross section of the core layer is circular and consists of a plurality of cores with the same structure, the cross section of each core is fan-shaped, the central angles of the cores are connected, and the outer sides of the cores are coated with electrolytic copper layers;

the surface of the core layer is sequentially coated with a wear-resistant layer and a conductive anticorrosive layer from inside to outside.

2. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the number of the core bodies is 8, and the central angle of each core body is 45 degrees.

3. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the diameter of the monofilament is 3.5mm-5.9 mm.

4. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the core is made of a steel material containing 3% carbon.

5. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the number of the monofilaments is set to be 3, 7, 19 or 37.

6. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the wear-resistant layer is a cobalt-based alloy coating.

7. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the conductive anticorrosive layer adopts a nickel-silver alloy coating.

8. The corrosion-resistant copper-plated steel ground strand as claimed in claim 1, wherein: the thickness of the electrolytic copper layer is larger than that of the wear-resistant layer and that of the conductive corrosion-resistant layer.

9. The corrosion-resistant copper-coated steel ground strand of claim 7, wherein: the thickness of the conductive anti-corrosion layer is larger than that of the wear-resistant layer.