CN205178032U - Compound earth bar of wrap -around iron -based of corrosion -resisting material - Google Patents

Compound earth bar of wrap -around iron -based of corrosion -resisting material Download PDF

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Publication number
CN205178032U
CN205178032U CN201520883546.6U CN201520883546U CN205178032U CN 205178032 U CN205178032 U CN 205178032U CN 201520883546 U CN201520883546 U CN 201520883546U CN 205178032 U CN205178032 U CN 205178032U
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China
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layer
coated
iron
ground bar
stainless steel
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CN201520883546.6U
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Chinese (zh)
Inventor
陈云
药宁娜
孔晓峰
郝文魁
聂京凯
刘辉
王斌
徐利民
孙亮
田一
王广克
刘晓圣
朱全军
马光
祝志祥
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State Grid Corp of China SGCC
State Grid Shandong Electric Power Co Ltd
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Smart Grid Research Institute of SGCC
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State Grid Corp of China SGCC
State Grid Shandong Electric Power Co Ltd
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Smart Grid Research Institute of SGCC
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Application filed by State Grid Corp of China SGCC, State Grid Shandong Electric Power Co Ltd, Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd, Smart Grid Research Institute of SGCC filed Critical State Grid Corp of China SGCC
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Abstract

The utility model discloses a compound earth bar of wrap -around iron -based of corrosion -resisting material, the earth bar is including coating (3) of steel core (1), intermediate level (2) and the surface that set gradually, intermediate level (2) are fine copper layer, copper alloy layer or aluminium lamination, coating (3) are stainless steel layer, titanium layer or ferrite coating. The pollution of perishable, the copper product of steel has been overcome to the of the present invention earth bar, has good electric conductivity, the excellent corrosion -resistant and feature of environmental protection concurrently.

Description

The iron-based composite ground bar that a kind of corrosion resistant material is coated
Technical field
The utility model relates to the earthing device in electric power grounding grid, is specifically related to the iron-based composite ground bar that a kind of corrosion resistant material is coated.
Background technology
Earth rod is a kind of grounding-for-lightning device for fields such as electric power, chemical industry, railways, copper covered steel earth rod is a very wide range of rod power ground of a kind of application, because steel are perishable in soil, and copper material has higher conductance and good corrosion resistance, therefore in the mode of copper covered steel, both are combined, there is excellent electric conductivity and mechanical strength.
But the use of copper material can accelerate the corrosion of steel framework and concrete reinforcing steel and underground cable in soil, and a large amount of copper material is embedded in underground, also can cause severe contamination to water resources soil.
Summary of the invention
The purpose of this utility model there is provided the coated iron-based composite ground bar of a kind of corrosion resistant material, overcomes the deficiencies in the prior art, has satisfactory electrical conductivity, the excellent corrosion-resistant and feature of environmental protection concurrently.
To achieve these goals, the utility model takes following technical scheme:
The iron-based composite ground bar that a kind of corrosion resistant material is coated, described earth rod comprise set gradually steel core (1), intermediate layer (2) and outer surface coating layer (3), described intermediate layer (2) is pure copper layer, copper alloy layer or aluminium lamination, and described coating layer (3) is stainless steel layer, titanium layer or ferrite coating.
First optimal technical scheme of the iron-based composite ground bar that described corrosion resistant material is coated, described intermediate layer (2) are pure copper layer.
Second optimal technical scheme of the iron-based composite ground bar that described corrosion resistant material is coated, described coating layer (3) is stainless steel layer.
3rd optimal technical scheme of the iron-based composite ground bar that described corrosion resistant material is coated, described stainless steel layer material is 316 stainless steels, 316L stainless steel or two phase stainless steel.
4th optimal technical scheme of the iron-based composite ground bar that described corrosion resistant material is coated, described steel core (1) diameter is Φ 8mm ~ 50mm, described intermediate layer (2) thickness is 0.25 ~ 1mm, and described coating layer (3) thickness is 0.2mm ~ 0.4mm.
5th optimal technical scheme of the iron-based composite ground bar that described corrosion resistant material is coated, described steel core (1) diameter is Φ 8mm ~ 30mm, described intermediate layer (2) thickness is 0.25 ~ 0.6mm, and described coating layer (3) thickness is 0.2mm ~ 0.4mm.
The preparation method of the iron-based composite ground bar that a kind of described corrosion resistant material is coated, described intermediate layer (2) is arranged at described steel core (1) surface by cold drawn, plating or the mode of horizontal casting, and described coating layer (3) is coated on described intermediate layer (2) outer surface by cold drawn or spraying method.
With immediate prior art ratio, the utility model has following beneficial effect:
1) earth rod of the present utility model, by the coated anticorrosion layer of intermediate layer outer surface, while realizing decay resistance raising, prevents copper material to the accelerated corrosion of other structure of steel product in soil and the pollution to water resources soil thereof;
2) earth rod of the present utility model has environmental protection and excellent conductive performance, and its tensile strength reaches 680N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Accompanying drawing explanation
Fig. 1: the structural representation of the iron-based composite ground bar that the utility model corrosion resistant material is coated; Wherein: 1 steel core, 2 intermediate layers, 3 coating layers.
Embodiment:
Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described, but the utility model is not limited to following examples.
Embodiment 1
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted red copper layer 2 to be coated on steel core 1 surface, by cold-drawing process, 316 stainless steel layers 3 are coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 16mm, described red copper layer 2 thickness is 0.3mm, and described 316 stainless steel layer 3 thickness are 0.2mm.Obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 680N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 2
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted red copper layer 2 to be coated on steel core 1 surface, by cold-drawing process, 316L stainless steel layer 3 is coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 10mm, described red copper layer 2 thickness is 0.25mm, described 316L stainless steel layer 3 thickness is 0.3mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 620N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 3
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted red copper layer 2 to be coated on steel core 1 surface, by cold-drawing process, titanium layer 3 is coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 16mm, described red copper layer 2 thickness is 0.4mm, described titanium layer 3 thickness is 0.2mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 635N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 4
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted copper alloy layer 2 to be coated on steel core 1 surface, by cold-drawing process, 316 stainless steel layers 3 are coated on copper alloy layer 2 outer surface afterwards, described steel core 1 diameter is Φ 10mm, described copper alloy layer 2 thickness is 0.5mm, described 316 stainless steel layer 3 thickness are 0.2mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 650N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 5
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted red copper layer 2 to be coated on steel core 1 surface, by plasma spray coating process, ferrite coating 3 is coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 16mm, described red copper layer 2 thickness is 0.3mm, described ferrite coating 3 thickness is 0.2mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 645N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 6
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted aluminium lamination 2 to be coated on steel core 1 surface, by cold-drawing process, 316 stainless steel layers 3 are coated on aluminium lamination 2 outer surface afterwards, described steel core 1 diameter is Φ 20mm, described aluminium lamination 2 thickness is 0.5mm, described 316 stainless steel layer 3 thickness are 0.4mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 650N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 7
The iron-based composite ground bar that a kind of corrosion resistant material is coated, electroplating technology is adopted red copper layer 2 to be coated on steel core 1 surface, by cold-drawing process, 316 stainless steel layers 3 are coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 25mm, described red copper layer 2 thickness is 0.5mm, described 316 stainless steel layer 3 thickness are 0.4mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 665N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 8
The iron-based composite ground bar that a kind of corrosion resistant material is coated, cold-drawing process is adopted red copper layer 2 to be coated on steel core 1 surface, by cold-drawing process, 316 stainless steel layers 3 are coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 20mm, described red copper layer 2 thickness is 0.3mm, described 316 stainless steel layer 3 thickness are 0.2mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 650N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 9
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted red copper layer 2 to be coated on steel core 1 surface, by cold-drawing process, two-phase stainless steel layer 3 is coated on red copper layer 2 outer surface afterwards, described steel core 1 diameter is Φ 16mm, described red copper layer 2 thickness is 0.3mm, described two-phase stainless steel layer 3 thickness is 0.2mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 675N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Embodiment 10
The iron-based composite ground bar that a kind of corrosion resistant material is coated, horizontal continuous casting process is adopted aluminium lamination 2 to be coated on steel core 1 surface, by cold-drawing process, two-phase stainless steel layer 3 is coated on aluminium lamination 2 outer surface afterwards, described steel core 1 diameter is Φ 16mm, described aluminium lamination 2 thickness is 0.3mm, described two-phase stainless steel layer 3 thickness is 0.2mm, and obtained composite ground bar has environmental protection and excellent conductive performance, and its tensile strength is 670N/mm 2, as normal soil area substation grounding device, its useful life is greater than 80 years, and the soil region in for corrosivity being, is greater than 50 years useful life, is strong soil region, is greater than 30 years useful life for corrosivity.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; those of ordinary skill in the field are to be understood that; can modify to embodiment of the present utility model with reference to above-described embodiment or equivalent to replace, these do not depart from any amendment of the utility model spirit and scope or equivalently to replace within the claims that all awaits the reply in application.

Claims (6)

1. the iron-based composite ground bar that a corrosion resistant material is coated, it is characterized in that, described earth rod comprise set gradually steel core (1), intermediate layer (2) and outer surface coating layer (3), described intermediate layer (2) is pure copper layer, copper alloy layer or aluminium lamination, and described coating layer (3) is stainless steel layer, titanium layer or ferrite coating.
2. the iron-based composite ground bar that corrosion resistant material according to claim 1 is coated, is characterized in that, described intermediate layer (2) are pure copper layer.
3. the iron-based composite ground bar that corrosion resistant material according to claim 1 is coated, is characterized in that, described coating layer (3) is stainless steel layer.
4. the iron-based composite ground bar that corrosion resistant material according to claim 3 is coated, is characterized in that, described stainless steel layer is 316 stainless steel layers, 316L stainless steel layer or two-phase stainless steel layer.
5. the iron-based composite ground bar that corrosion resistant material according to claim 1 is coated, it is characterized in that, described steel core (1) diameter is Φ 8mm ~ 50mm, and described intermediate layer (2) thickness is 0.25 ~ 1mm, and described coating layer (3) thickness is 0.2mm ~ 0.4mm.
6. the iron-based composite ground bar that corrosion resistant material according to claim 5 is coated, it is characterized in that, described steel core (1) diameter is Φ 8mm ~ 30mm, described intermediate layer (2) thickness is 0.25 ~ 0.6mm, and described coating layer (3) thickness is 0.2mm ~ 0.4mm.
CN201520883546.6U 2015-11-06 2015-11-06 Compound earth bar of wrap -around iron -based of corrosion -resisting material Active CN205178032U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520883546.6U CN205178032U (en) 2015-11-06 2015-11-06 Compound earth bar of wrap -around iron -based of corrosion -resisting material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520883546.6U CN205178032U (en) 2015-11-06 2015-11-06 Compound earth bar of wrap -around iron -based of corrosion -resisting material

Publications (1)

Publication Number Publication Date
CN205178032U true CN205178032U (en) 2016-04-20

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Country Status (1)

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CN (1) CN205178032U (en)

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