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Grounding module material

A grounding module and raw material technology, applied in the direction of connecting contact materials, carbon silicon compound conductors, electrical components, etc., can solve the problems of unstable performance, fragile grounding module, low conductivity, etc., and achieve good economic and social benefits , Reduce the impact of large current, the effect of high conductivity

Active Publication Date: 2015-07-22
王要增 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing grounding module materials are mainly composed of graphite, Portland cement, lime, filler, water, etc., and have the following defects: the grounding module is fragile, low conductivity, and unstable performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: A grounding module material, in terms of weight percentage, the grounding module material contains 10% of raw graphite, 75% of calcined coke, 8% of bentonite, 2% of rare earth, 2% of sodium nitrite, 3% of water, plus calcium Conductive cement with a total weight of 2% of the above raw materials.

[0021] The specific preparation method of the grounding module material includes the following steps:

[0022] (1) Granulation: Weigh the graphite and calcined coke according to the composition of the ingredients, break the graphite and calcined coke into particles below 3 mm, add them to the ball mill, then add the purified substance into the ball mill, grind for 30 hours, and then add the above mixture Add water to prepare a 2.8 ~ 3.2mm sphere;

[0023] (2) Expansion: Weigh the bentonite according to the composition of the ingredients, add a certain amount of water to the bentonite to make the volume of the expanded bentonite V 1 Compatible with the volume of...

Embodiment 2

[0027] Embodiment 2: A grounding module material, in terms of weight percentage, the grounding module material contains 15% of raw graphite, 70% of calcined coke, 8% of bentonite, 4% of rare earth, 1% of sodium nitrite, and 2% of water, plus calcium Conductive cement with a total weight of 3% of the above raw materials.

[0028] The specific preparation method of the grounding module material includes the following steps:

[0029] (1) Granulation: Weigh the graphite and calcined coke according to the composition of the ingredients, break the graphite and calcined coke into particles below 3 mm, add them to the ball mill, then add the purified substance into the ball mill, grind for 30 hours, and then add the above mixture Add water to prepare a 2.8 ~ 3.2mm sphere;

[0030] (2) Expansion: Weigh the bentonite according to the composition of the ingredients, add a certain amount of water to the bentonite to make the volume of the expanded bentonite V 1 Compatible with the volum...

Embodiment 3

[0034] Embodiment 3: The similarities between this embodiment and Embodiment 1 will not be repeated. The difference is that a grounding module material is provided. In terms of weight percentage, the grounding module material contains 12% of raw graphite and 73% of calcined coke. Bentonite 6%, rare earth 3%, sodium nitrite 4%, water 2%, plus conductive cement accounting for 3% of the total weight of the above raw materials.

[0035] The material produced by this method is used to prepare a ф100mm×100mm grounding module sample, and the nominal resistivity value at room temperature is 0.78Ω. m; apply 10A power frequency current to the grounding module sample for 5 times, each time lasts 10s, and the interval between two times is 30min, the resistance change rate of the grounding module sample before and after the test is 6.2%; apply 8 / 20μs to the grounding module sample, 1KA impulse current 20 times, each interval 1min, the resistance change rate of the grounding module sample b...

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PUM

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Abstract

The invention relates to grounding module material. The grounding module material comprises, by weight percentage, 10-20% of raw material graphite, 60-75% of calcined coke, 4-8% of bentonite, 2-4% of rare earth, 1-5% of purification material, 2-5% of water and additional 1-5% of electroconductive cement in the total weight of the raw materials. Grounding modules prepared from the grounding module material are high in electric conductivity, stable in performance and good in moisture absorbing and preserving capacity, and the grounding module material has good economical benefits and social benefits.

Description

technical field [0001] The invention belongs to the field of safety grounding materials, and in particular relates to a grounding module material. Background technique [0002] With the continuous development of the national economy and the rapid improvement of the modernization level, under the guidance of informatization to drive industrialization, various information equipment, electronic computers, precision instruments, and data network equipment are widely used, and the harm of lightning strikes is also increasing. In this case, it has become a mainstream to use lightning and surge protectors to discharge the lightning current into the ground, and grounding materials are also widely used in various grounding systems. The quality of the grounding effect directly affects To the lightning protection effect. [0003] The existing grounding module materials are mainly composed of graphite, Portland cement, lime, fillers, water, etc., and have the following defects: the gro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66H01B1/04H01B13/00
Inventor 王要增王延宾
Owner 王要增