Conductive paint for anode steel claws

A technology of conductive coatings and anode steel claws, which is applied in conductive coatings, alkali metal silicate coatings, coatings, etc., can solve the problems of poor conductivity and worsening operating environment, so as to reduce iron-carbon pressure drop and improve The effect of contact quality

Inactive Publication Date: 2015-09-09
HUNAN CHUANGYUAN ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Graphite oil is mainly made of graphite and kerosene, a large amount of kerosene volatilizes during anode casting, resulting in a large number of small bubbles in the phosphorus pig iron liquid, poor conductivity, and a large amount of black smoke at the same time, which deteriorates the operating environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of anode steel claw conductive paint, its composition and composition weight percent are: graphite 18%, macromolecule carbon fiber (polyacrylonitrile) 2%, potassium silicate 5%, sodium silicate 10%, sodium fluorosilicate 1% , potassium fluorosilicate 4%, polyacryl alcohol 0.5%, tannic acid 0.5%, and the rest is deionized water.

[0021] The preparation and use methods are as follows:

[0022] 1) Mix the graphite, polymer carbon fiber (polyacrylonitrile), potassium silicate, sodium silicate, sodium fluorosilicate, and potassium fluorosilicate in the above weight percentage evenly to prepare a mixed powder;

[0023] 2) mixing the polyacryl alcohol, tannic acid and deionized water in the above weight percentage into an emulsified solution;

[0024] 3) fully mixing the above-mentioned mixed powder with the mixed emulsion solution to prepare graphite conductive coating;

[0025] 4) Immerse the anode steel claw in the graphite conductive paint for 15cm, immerse for 1...

Embodiment 2

[0030] A kind of anode steel claw conductive paint, its composition and composition weight percent are: graphite 17%, macromolecule carbon fiber (polyacrylonitrile) 3%, potassium silicate 7%, sodium silicate 8%, sodium fluorosilicate 1% , potassium fluorosilicate 4%, polyacryl alcohol 0.5%, tannic acid 0.5%, and the rest is deionized water.

[0031] The preparation and use methods are as follows:

[0032] 1) Mix the graphite, polymer carbon fiber (polyacrylonitrile), potassium silicate, sodium silicate, sodium fluorosilicate, and potassium fluorosilicate in the above weight percentage evenly to prepare a mixed powder;

[0033] 2) mixing the polyacryl alcohol, tannic acid and deionized water in the above weight percentage into an emulsified solution;

[0034] 3) fully mixing the above-mentioned mixed powder with the mixed emulsion solution to prepare graphite conductive coating;

[0035] 4) Immerse the anode steel claw in the graphite conductive paint for 15cm, immerse for 10...

Embodiment 3

[0040] A kind of anode steel claw conductive coating, its composition and composition weight percent are: graphite 19%, macromolecule carbon fiber (polyacrylonitrile) 1%, potassium silicate 10%, sodium silicate 5%, sodium fluorosilicate 4% , potassium fluorosilicate 1%, polyacryl alcohol 0.1%, tannic acid 0.9%, and the rest is deionized water.

[0041] The preparation and use methods are as follows:

[0042] 1) Mix the graphite, polymer carbon fiber (polyacrylonitrile), potassium silicate, sodium silicate, sodium fluorosilicate, and potassium fluorosilicate in the above weight percentage evenly to prepare a mixed powder;

[0043] 2) mixing the polyacryl alcohol, tannic acid and deionized water in the above weight percentage into an emulsified solution;

[0044] 3) fully mixing the above-mentioned mixed powder with the mixed emulsion solution to prepare graphite conductive coating;

[0045] 4) Immerse the anode steel claw in the graphite conductive paint for 15cm, immerse for...

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PUM

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Abstract

The invention provides conductive paint for anode steel claws. The conductive paint comprises, by weight, 18%-22% of a conductor, 2%-8% of curing agent, 0.2%-1.8% of dispersing agent, 7%-23% of film-forming agent and the balance deionized water. The conductor comprises 17%-19% of graphite and 1%-3% of high-polymer carbon fiber, the curing agent is mixture of 1%-4% of potassium fluosilicate and 1%-4% of sodium fluorosilicate, the dispersing agent is mixture of 0.1%-0.9% of polypropylene glycol and 0.1%-0.9% of tannic acid, and the film-forming agent is mixture of 2%-10% of potassium silicate and 5%-13% of sodium silicate. Compared with the prior art, the conductive paint has the advantages that the graphite and the polyacrylonitrile of the high-polymer carbon fiber are used as the main conductor of the composite conductive paint, the potassium silicate and the sodium silicate are used as the film-forming agent of the composite conductive paint, the potassium fluosilicate and sodium fluorosilicate are used as the curing agent of the composite conductive paint, the polypropylene glycol and the tannic acid are used as the dispersing agent of the composite conductive paint, accordingly, shortcomings of graphite oil technologies can be overcome, the contact quality of the steel claws and phosphorous pig iron can be obviously improved, and iron carbon pressure drop can be greatly reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of aluminum smelting industry, in particular to a conductive coating for anode steel claws. 【Background technique】 [0002] In the aluminum metallurgy industry, the connection between the anode steel claw and the anode carbon block is casted with phosphorus pig iron. During the casting process, the high-temperature phosphorus pig iron liquid has a certain corrosion effect on the steel claws, which reduces the service life of the steel claws. Since the phosphorus pig iron is closely combined with the steel claw, it is difficult to press off the phosphorus pig iron after the anode is used. After the casting is completed, the phosphorus pig iron liquid cools and shrinks, and gaps appear between the steel claw and the phosphorus pig iron, which makes the contact between the phosphorus iron and the steel claw worse, and the contact pressure drop increases, resulting in energy waste. In view of the above probl...

Claims

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Application Information

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IPC IPC(8): C09D1/04C09D5/24C09D7/12C25C3/12
Inventor 王博一洪波刘宇
Owner HUNAN CHUANGYUAN ALUMINUM IND
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