Preparation method for acid resistance soil grounding grid material

A grounding grid, acid-resistant technology, applied in the direction of connecting contact materials, etc., can solve problems such as poor corrosion resistance and poor flexibility, and achieve the effects of improving strength and conductivity, reducing costs, and reducing construction and maintenance costs.

Inactive Publication Date: 2018-11-20
FOSHAN LINGCHAO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems of poor corrosion resistance and poor flexibility of the current grounding materials, a preparation method for materials for acid-resistant soil grounding grids is provided

Method used

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  • Preparation method for acid resistance soil grounding grid material

Examples

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Effect test

example 1

[0023] Take 20g of silicon powder, 10g of manganese powder, 20g of copper powder, 850g of aluminum powder, and 10g of zinc powder, put them into an electric arc melting furnace, and conduct a melting reaction at 800°C and 10MPa for 2 hours. , the billet is drawn, and the number of times of drawing is controlled for 3 times to obtain alloy wire. Take 150g chopped carbon fiber, add it to 1000g acrylic emulsion, stir and disperse at 3000r / min for 30min, and obtain a dispersion. Roll expanded graphite into graphite paper, control The pressure is 18MPa, the speed is 3m / min, the thickness of graphite paper is 0.010mm, and the density is 1.0g / cm 3 , and then press 5g / m 2 After the coating is finished, put it in a drying oven and dry it to a constant weight at 105°C to obtain a composite graphite paper. Alloy wires are arranged on the surface of the composite graphite paper, and the distance between the alloy wires is 2cm. Cover a layer of composite graphite paper after the cloth is ...

example 2

[0025] Take 25g of silicon powder, 15g of manganese powder, 35g of copper powder, 875g of aluminum powder, and 15g of zinc powder, put them into an arc melting furnace, and conduct a melting reaction at 850°C and 15MPa for 2 hours. After the melting is completed, carry out hot rolling to obtain a 4mm diameter billet. , the billet is drawn, and the number of times of drawing is controlled 4 times to obtain alloy wire. Take 175g chopped carbon fiber, add it to 1250g acrylic acid emulsion, stir and disperse at 3500r / min for 35min, and obtain a dispersion. Roll expanded graphite into graphite paper, control The pressure is 19MPa, the speed is 3m / min, the thickness of graphite paper is 0.013mm, and the density is 1.1g / cm 3 , and then press 7g / m 2 After the coating is finished, put it in a drying oven and dry it to a constant weight at 107°C to obtain a composite graphite paper. Alloy wires are arranged on the surface of the composite graphite paper, and the distance between the all...

example 3

[0027]Take 30g of silicon powder, 20g of manganese powder, 50g of copper powder, 900g of aluminum powder, and 20g of zinc powder, put them into an arc melting furnace, and conduct a melting reaction at 900°C and 20MPa for 3 hours. After the melting is completed, carry out hot rolling to obtain a 5mm diameter billet. , the billet is drawn, and the number of times of drawing is controlled 5 times to obtain an alloy wire. Take 200g of chopped carbon fiber, add it to 1500g of acrylic emulsion, stir and disperse it at 4000r / min for 40min to obtain a dispersion, and roll the expanded graphite into graphite paper. The pressure is 20MPa, the speed is 4m / min, the thickness of graphite paper is 0.015mm, and the density is 1.2g / cm 3 , and then press 8g / m 2 After the coating is finished, put it in a drying oven and dry it to a constant weight at 110°C to obtain a composite graphite paper. Alloy wires are arranged on the surface of the composite graphite paper. The distance between the all...

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Abstract

The invention relates to a preparation method for an acid resistance soil grounding grid material, and belongs to the technical field of metal materials. Aluminum is used as a basis material, and a plurality of elements are added in an aluminum substrate to prepare an alloy wire suitable for a grounding grid, and therefore stable corrosion products of aluminum-copper alloy are formed on the surface, contact resistance with the soil is reduced, and excellent corrosion resistance and grounding electrical performance are achieved simultaneously. Trace rare earth elements can be added meanwhile toachieve grain refinement, and therefore the aim of further improving the corrosion resisting performance is achieved. A graphite layer with high corrosion resistance is arranged on the surface of thealloy wire in a wrapping mode to improve strength and conductivity of the grounding material. The alloy wire is used as a reinforcing material to improve tensile strength of the grounding material, and therefore flexible grounding material can be manufactured. The grounding material is excellent is performance, can greatly reduce the cost of grounding body replacement caused by grounding grid corrosion in the electric power system, can avoid grid tripping caused by grounding grid failure, and has better market prospects.

Description

technical field [0001] The invention relates to a preparation method of a material for an acid-resistant soil grounding grid, and belongs to the technical field of metal materials. Background technique [0002] Transmission lines are the basic components of power systems, and frequent lightning tripping accidents have always been the most important natural disasters faced by transmission lines. From the perspective of the terrain and climate environment where the transmission line is located, it is difficult to avoid certain lightning tripping of the transmission line under the action of lightning. Actual operating experience shows that the large grounding resistance of towers is the main cause of line counter tripping. "Lightning protection lies in grounding". important electrical installations for operation. [0003] For a long time, metal grounding materials such as flat steel, stainless steel, copper, etc., as well as galvanized steel, stainless steel-clad steel, and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/14H01R4/66
CPCC22C21/14H01R4/66
Inventor 裘友玖张桂芳李静
Owner FOSHAN LINGCHAO NEW MATERIAL CO LTD
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