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A kind of graphite lightning protection grounding module and preparation method thereof

A lightning protection grounding and graphite technology, applied in the direction of connecting contact materials, etc., can solve the problem of low resistivity, achieve long service life, increase the effect of reducing resistance, and reduce the effect of grounding resistance

Active Publication Date: 2017-01-04
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the graphite ground electrode needs to meet the requirements of stable performance, low resistivity, and high requirements for corrosion resistance, the graphite ground electrode in the prior art cannot fully meet the above properties

Method used

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  • A kind of graphite lightning protection grounding module and preparation method thereof
  • A kind of graphite lightning protection grounding module and preparation method thereof
  • A kind of graphite lightning protection grounding module and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A graphite lightning protection grounding module, the raw materials are graphite powder, graphite particles and pitch, the pitch is medium temperature coal pitch, and the softening point of the pitch is 85-95 DEG C.

[0053] The preparation method includes the following steps:

[0054] 1. Ingredients: crush and sieve the graphite powder to obtain graphite particles and graphite powder, and mix them according to the mass ratio of 5:5. The particle size of the graphite particles is 0.8-1mm, and the particle size of the graphite powder is 0.075-0.5mm;

[0055] 2. Kneading: kneading the graphite powder and pitch prepared in step 1 according to a mass ratio of 78:22 to obtain a plastic paste, the kneading time is 20 minutes, and the kneading temperature is 145°C; ;

[0056] 3. Preparation of green body: Grind the rolled sheet paste obtained in step 2 into 200 mesh powder, and press the powder to have a certain shape and a density of 1.60 g / cm through vibration molding 3 Th...

Embodiment 2

[0061] A graphite lightning protection grounding module, the raw materials are graphite powder, graphite particles and pitch, the pitch is medium temperature coal pitch, and the softening point of the pitch is 85-95 DEG C.

[0062] The preparation method includes the following steps:

[0063] 1. Ingredients: crush and sieve the graphite powder to obtain graphite particles and graphite powder, and mix them according to the mass ratio of 3:7.

[0064] 2. Kneading: kneading the batched graphite powder and asphalt according to a mass ratio of 80:20 to obtain a plastic paste, the kneading time is 30 minutes, and the kneading temperature is 140 ° C; and rolling through a flake mill; kneading Before heating, the asphalt is heated while evacuating, the heating temperature is 140°C, and the vacuum degree is 2000Pa; under this condition, stir for 10 to 30 minutes;

[0065] 3. Preparation of green body: Grind the obtained rolling paste into 200 mesh powder, and vibrate the powder into a...

Embodiment 3

[0070] A graphite lightning protection grounding module, the raw materials are graphite powder, graphite particles and pitch, the pitch is medium temperature coal pitch, and the softening point of the pitch is 85-95 DEG C.

[0071] The preparation method includes the following steps:

[0072] 1. Ingredients: crush and sieve the graphite powder to obtain graphite particles and graphite powder, and mix them according to the mass ratio of 4:6. The particle size of the graphite particles is 0.8-1 mm, and the particle size of the graphite powder is 0.075-0.5 mm;

[0073]2. Kneading: kneading the mixed graphite and pitch according to the mass ratio of 78:22 to obtain a plastic paste, the kneading time is 30 minutes, and the kneading temperature is 145 ℃; and rolling through the flake mill; before kneading , first heat the asphalt while vacuuming, the heating temperature is 145 ° C, the vacuum degree is 1000 Pa, and the stirring is performed for 10 to 30 minutes under this condition;...

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Abstract

The invention relates to the field of a lightning-protection grounding geographic pole and particularly relates to a graphite lightning-protection grounding module and a preparation method thereof. The graphite lightning-protection grounding module is made from graphite powder, granular graphite and asphalt. The preparation method comprises the steps of material preparing, kneading, blank preparing, roasting, post processing, and the like. The graphite lightning-protection grounding module disclosed by the invention is low in electrical resistivity, relatively high in mechanical strength, resistant to corrosion and long in service life.

Description

technical field [0001] The invention relates to the field of lightning protection grounding electrodes, in particular to a graphite lightning protection grounding module and a preparation method thereof. Background technique [0002] Traditional grounding bodies are mostly metal conductors, and the most common ones are round steel, angle steel, steel pipe, copper rod, copper mesh, etc. The disadvantage is that it uses a lot of materials, high cost, short life and poor stability. Composite grounding modules are mostly made of non-metallic conductive materials, with low conductivity and stable performance. It is not degraded when buried in the soil, does not contain corrosive ions, and is safe and environmentally friendly. However, this grounding module has low compressive strength and is easily damaged during transportation and installation. Moreover, the scope of application is limited, and it is no longer applicable to the working grounding and protection grounding of so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66C04B35/532C04B35/622
Inventor 祁进君张培林赤九林阮明礼张作文李江刘伟凯
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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