CN104893377A - Conductive paint for anode steel claws - Google Patents
Conductive paint for anode steel claws Download PDFInfo
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- CN104893377A CN104893377A CN201510347117.1A CN201510347117A CN104893377A CN 104893377 A CN104893377 A CN 104893377A CN 201510347117 A CN201510347117 A CN 201510347117A CN 104893377 A CN104893377 A CN 104893377A
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- graphite
- conductive paint
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- potassium
- conducting coating
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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]
The present invention relates to aluminum smelting technology industrial technical field, particularly relate to a kind of anode steel jaw electrically conducting coating.
[background technology]
In metallurgy of aluminium industry, between anode steel jaw and anode carbon block, adopt phosphorus pig iron casting mode of connection.In casting cycle there is certain corrosive nature to steel pawl in high temperature phosphorous pig iron liquid, and steel pawl is reduced work-ing life.Because the phosphorus pig iron is combined closely with steel pawl, after anode uses, the phosphorus pig iron is difficult to pressure-off.After having cast, there is gap between steel pawl and the phosphorus pig iron in phosphorus pig iron liquid cooling meat, and the Contact of ferrophosphorus and steel pawl is deteriorated, and contact drop raises, and causes energy wastage.For above problem, the method generally adopted at present dips in one deck graphite oil with slowing down corrosion with phosphorus pig iron contact position on anode steel jaw, improves quality of connection, facilitate pressure-off.Graphite oil mainly mixes with graphite and kerosene, and when anode casting, kerosene volatilizees in a large number, and cause containing a large amount of small bubbles in phosphorus pig iron liquid, electroconductibility is deteriorated, and produces a large amount of black smoke simultaneously, worsens operationalization environment.
Therefore, be necessary to provide a kind of new anode steel jaw electrically conducting coating to solve the problems of the technologies described above in fact.
[summary of the invention]
The technical issues that need to address of the present invention are to provide one and can reduce iron carbon pressure and fall anode steel jaw electrically conducting coating.
A kind of anode steel jaw electrically conducting coating of the present invention, its composition and composition by weight percent thereof are:
Electrical conductor: 18% ~ 22%,
Solidifying agent: 2% ~ 8%,
Dispersion agent: 0.2% ~ 1.8%,
Membrane-forming agent: 7% ~ 23%,
Residue: deionized water;
Described electrical conductor comprises the graphite of 17% ~ 19% and the macromolecule carbon fiber of 1% ~ 3%,
Described solidifying agent is the mixture of the potassium silicofluoride of 1% ~ 4% and the Sodium Silicofluoride of 1% ~ 4%,
Described dispersion agent is the mixture of the POLYPROPYLENE GLYCOL of 0.1% ~ 0.9% and the tannic acid of 0.1% ~ 0.9%,
Described membrane-forming agent is the mixture of water glass of 2% ~ 10% potassium silicate and 5% ~ 13%.
Preferably, the granularity of described graphite is 200 order ~ 325 object flaky graphites.
Preferably, described macromolecule carbon fiber is polyacrylonitrile.
Compared with correlation technique, beneficial effect of the present invention is, the present invention with graphite and macromolecule carbon fiber polypropylene nitrile for main conductive body, with potassium silicate, water glass be membrane-forming agent, potassium silicofluoride, Sodium Silicofluoride for solidifying agent, the compound-type conducting coating being dispersion agent with POLYPROPYLENE GLYCOL, tannic acid.Not only solve graphite oil technical disadvantages but also significantly can improve steel pawl and phosphorus pig iron contact quality, significantly reducing iron carbon pressure and fall.
[embodiment]
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
A kind of anode steel jaw electrically conducting coating, its composition and composition by weight percent thereof are: graphite 18%, macromolecule carbon fiber (polyacrylonitrile) 2%, potassium silicate 5%, water glass 10%, Sodium Silicofluoride 1%, potassium silicofluoride 4%, POLYPROPYLENE GLYCOL 0.5%, tannic acid 0.5%, remaining as deionized water.
Preparation is as follows with using method:
1) graphite of above-mentioned weight percent, macromolecule carbon fiber (polyacrylonitrile), potassium silicate, water glass, Sodium Silicofluoride, potassium silicofluoride are mixed, be prepared into mixed powder;
2) by the POLYPROPYLENE GLYCOL of above-mentioned weight percent, tannic acid and deionized water mixing milky solution;
3) by above-mentioned mixed powder with mix milky solution and be fully mixed with graphite conducting coating material;
4) anode steel jaw is immersed in graphite conducting coating material 15cm, submergence 10 ~ 20s, then proposes, and thickness is 0.5 ~ 1.5mm;
5) hot-air seasoning;
6) phosphorus pig iron casting.
Technique effect: do not occur in casting cycle that any gas is emerged, iron carbon pressure falls and is reduced to 91mv by original 115mv, and economic benefit is obvious.During residual anode pressure-disengaging, the phosphorus pig iron is separated well with steel pawl, and steel pawl extent of corrosion significantly reduces.
Embodiment 2
A kind of anode steel jaw electrically conducting coating, its composition and composition by weight percent thereof are: graphite 17%, macromolecule carbon fiber (polyacrylonitrile) 3%, potassium silicate 7%, water glass 8%, Sodium Silicofluoride 1%, potassium silicofluoride 4%, POLYPROPYLENE GLYCOL 0.5%, tannic acid 0.5%, remaining as deionized water.
Preparation is as follows with using method:
1) graphite of above-mentioned weight percent, macromolecule carbon fiber (polyacrylonitrile), potassium silicate, water glass, Sodium Silicofluoride, potassium silicofluoride are mixed, be prepared into mixed powder;
2) by the POLYPROPYLENE GLYCOL of above-mentioned weight percent, tannic acid and deionized water mixing milky solution;
3) by above-mentioned mixed powder with mix milky solution and be fully mixed with graphite conducting coating material;
4) anode steel jaw is immersed in graphite conducting coating material 15cm, submergence 10 ~ 20s, then proposes, and thickness is 0.5 ~ 1.5mm;
5) hot-air seasoning;
6) phosphorus pig iron casting.
Technique effect: do not occur in casting cycle that any gas is emerged, iron carbon pressure falls and is reduced to 76mv by original 115mv, and economic benefit is obvious.During residual anode pressure-disengaging, the phosphorus pig iron is separated well with steel pawl, and steel pawl extent of corrosion significantly reduces.
Embodiment 3
A kind of anode steel jaw electrically conducting coating, its composition and composition by weight percent thereof are: graphite 19%, macromolecule carbon fiber (polyacrylonitrile) 1%, potassium silicate 10%, water glass 5%, Sodium Silicofluoride 4%, potassium silicofluoride 1%, POLYPROPYLENE GLYCOL 0.1%, tannic acid 0.9%, remaining as deionized water.
Preparation is as follows with using method:
1) graphite of above-mentioned weight percent, macromolecule carbon fiber (polyacrylonitrile), potassium silicate, water glass, Sodium Silicofluoride, potassium silicofluoride are mixed, be prepared into mixed powder;
2) by the POLYPROPYLENE GLYCOL of above-mentioned weight percent, tannic acid and deionized water mixing milky solution;
3) by above-mentioned mixed powder with mix milky solution and be fully mixed with graphite conducting coating material;
4) anode steel jaw is immersed in graphite conducting coating material 15cm, submergence 10 ~ 20s, then proposes, and thickness is 0.5 ~ 1.5mm;
5) hot-air seasoning;
6) phosphorus pig iron casting.
Technique effect: do not occur in casting cycle that any gas is emerged, iron carbon pressure falls and is reduced to 97mv by original 115mv, and economic benefit is obvious.During residual anode pressure-disengaging, the phosphorus pig iron is separated well with steel pawl, and steel pawl extent of corrosion significantly reduces.
Embodiment 4
A kind of anode steel jaw electrically conducting coating, its composition and composition by weight percent thereof are: graphite 17%, macromolecule carbon fiber (polyacrylonitrile) 3%, potassium silicate 5%, water glass 10%, Sodium Silicofluoride 1%, potassium silicofluoride 4%, POLYPROPYLENE GLYCOL 0.9%, tannic acid 0.1%, remaining as deionized water.
Preparation is as follows with using method:
1) graphite of above-mentioned weight percent, macromolecule carbon fiber (polyacrylonitrile), potassium silicate, water glass, Sodium Silicofluoride, potassium silicofluoride are mixed, be prepared into mixed powder;
2) by the POLYPROPYLENE GLYCOL of above-mentioned weight percent, tannic acid and deionized water mixing milky solution;
3) by above-mentioned mixed powder with mix milky solution and be fully mixed with graphite conducting coating material;
4) anode steel jaw is immersed in graphite conducting coating material 15cm, submergence 10 ~ 20s, then proposes, and thickness is 0.5 ~ 1.5mm;
5) hot-air seasoning;
6) phosphorus pig iron casting.
Technique effect: do not occur in casting cycle that any gas is emerged, iron carbon pressure falls and is reduced to 71mv by original 115mv, and economic benefit is obvious.During residual anode pressure-disengaging, the phosphorus pig iron is separated well with steel pawl, and steel pawl extent of corrosion significantly reduces.
Embodiment 5
A kind of anode steel jaw electrically conducting coating, its composition and composition by weight percent thereof are: graphite 18%, macromolecule carbon fiber (polyacrylonitrile) 2%, potassium silicate 6%, water glass 9%, Sodium Silicofluoride 2.5%, potassium silicofluoride 2.5%, POLYPROPYLENE GLYCOL 0.5%, tannic acid 0.5%, remaining as deionized water.
Preparation is as follows with using method:
1) graphite of above-mentioned weight percent, macromolecule carbon fiber (polyacrylonitrile), potassium silicate, water glass, Sodium Silicofluoride, potassium silicofluoride are mixed, be prepared into mixed powder;
2) by the POLYPROPYLENE GLYCOL of above-mentioned weight percent, tannic acid and deionized water mixing milky solution;
3) by above-mentioned mixed powder with mix milky solution and be fully mixed with graphite conducting coating material;
4) anode steel jaw is immersed in graphite conducting coating material 15cm, submergence 10 ~ 20s, then proposes, and thickness is 0.5 ~ 1.5mm;
5) hot-air seasoning;
6) phosphorus pig iron casting.
Technique effect: do not occur in casting cycle that any gas is emerged, iron carbon pressure falls and is reduced to 89mv by original 115mv, and economic benefit is obvious.During residual anode pressure-disengaging, the phosphorus pig iron is separated well with steel pawl, and steel pawl extent of corrosion significantly reduces.
Compared with correlation technique, beneficial effect of the present invention is, for graphite oil technical deficiency, the invention discloses a kind of with graphite and macromolecule carbon fiber polypropylene nitrile for main conductive body, with potassium silicate, water glass be membrane-forming agent, potassium silicofluoride, Sodium Silicofluoride for solidifying agent, the compound-type conducting coating being dispersion agent with POLYPROPYLENE GLYCOL, tannic acid.Not only solve graphite oil technical disadvantages but also significantly can improve steel pawl and phosphorus pig iron contact quality, significantly reducing iron carbon pressure and fall.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (3)
1. an anode steel jaw electrically conducting coating, is characterized in that, composition and the composition by weight percent thereof of described anode steel jaw electrically conducting coating are:
Electrical conductor: 18% ~ 22%,
Solidifying agent: 2% ~ 8%,
Dispersion agent: 0.2% ~ 1.8%,
Membrane-forming agent: 7% ~ 23%,
Residue: deionized water;
Described electrical conductor comprises the graphite of 17% ~ 19% and the macromolecule carbon fiber of 1% ~ 3%,
Described solidifying agent is the mixture of the potassium silicofluoride of 1% ~ 4% and the Sodium Silicofluoride of 1% ~ 4%,
Described dispersion agent is the mixture of the POLYPROPYLENE GLYCOL of 0.1% ~ 0.9% and the tannic acid of 0.1% ~ 0.9%,
Described membrane-forming agent is the mixture of water glass of 2% ~ 10% potassium silicate and 5% ~ 13%.
2. anode steel jaw electrically conducting coating according to claim 1, is characterized in that, the granularity of described graphite is 200 order ~ 325 object flaky graphites.
3. anode steel jaw electrically conducting coating according to claim 1, is characterized in that, described macromolecule carbon fiber is polyacrylonitrile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510347117.1A CN104893377A (en) | 2015-06-23 | 2015-06-23 | Conductive paint for anode steel claws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510347117.1A CN104893377A (en) | 2015-06-23 | 2015-06-23 | Conductive paint for anode steel claws |
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| CN104893377A true CN104893377A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510347117.1A Pending CN104893377A (en) | 2015-06-23 | 2015-06-23 | Conductive paint for anode steel claws |
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| CN (1) | CN104893377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042428A (en) * | 2019-04-22 | 2019-07-23 | 贵州铝城铝业原材料研究发展有限公司 | A kind of continuous prebaked anode cell carbon block charcoal bowl |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180761A (en) * | 1997-10-31 | 1998-05-06 | 中国科学院上海硅酸盐研究所 | Mixed conductive anode coating composited by carbon fibre |
| US5851677A (en) * | 1995-02-03 | 1998-12-22 | Carbone Savoie | Coating composition for carbon-containing products and said coating |
-
2015
- 2015-06-23 CN CN201510347117.1A patent/CN104893377A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851677A (en) * | 1995-02-03 | 1998-12-22 | Carbone Savoie | Coating composition for carbon-containing products and said coating |
| CN1180761A (en) * | 1997-10-31 | 1998-05-06 | 中国科学院上海硅酸盐研究所 | Mixed conductive anode coating composited by carbon fibre |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042428A (en) * | 2019-04-22 | 2019-07-23 | 贵州铝城铝业原材料研究发展有限公司 | A kind of continuous prebaked anode cell carbon block charcoal bowl |
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Application publication date: 20150909 |