CN101973769A - Carbon-containing temperature measurement tube oxidation-resistance coating as well as preparation method and using method thereof - Google Patents
Carbon-containing temperature measurement tube oxidation-resistance coating as well as preparation method and using method thereof Download PDFInfo
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- CN101973769A CN101973769A CN 201010284111 CN201010284111A CN101973769A CN 101973769 A CN101973769 A CN 101973769A CN 201010284111 CN201010284111 CN 201010284111 CN 201010284111 A CN201010284111 A CN 201010284111A CN 101973769 A CN101973769 A CN 101973769A
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Abstract
The invention discloses a carbon-containing temperature measurement tube oxidation-resistance coating which comprises the following compositions in percentage by weight: 40-59.9 percent of fillers, 40-59.9 percent of binder and 0.1-0.4 percent of opacifier, wherein the fillers is silicon dioxide, and the binder comprises the following compositions: 27.15-39.9 percent of kaolin micropowder, 8-11 percent of boric acid, 1-2 percent of aluminum dihydrogen phosphate, 1-3 percent of silicon micropowder, 2.5-3.5 percent of yellow dextrin and 0.35-0.5 percent of chromium oxide. A preparation method of the coating comprises the following steps of: uniformly mixing the 40-59.9 percent of the silicon dioxide, 40-59.9 percent of the binder and 0.1-0.4 percent of the opacifier, and then ball milling at high speed on a ball mill to prepare the oxidation-resistance coating. A using method of the oxidation-resistance coating comprises the following steps of: adding water to the oxidation-resistance coating, uniformly mixing, spraying the mixture on a temperature measurement tube, roasting and then directly using. Therefore, the service life of the oxidation-resistance coating is prolonged from 23h to 30h, and prolonged by 30 percent.
Description
Technical field
The present invention relates to coating, relate in particular to the antioxidizing paint that is used for the carbon containing temperature tube.
Background technology
The infrared optics temperature tube is used to monitor the temperature of tundish molten steel, require use temperature about 1560 ℃, work-ing life 〉=24 hour.But the surface of temperature tube must apply one deck antioxidizing paint, to increase the work-ing life of temperature tube.Existing antioxidizing paint just makes the stability of coating reduce because the wedding agent that adopts mostly is chemical bond (as a water glass etc.).As Chinese patent CN1035121A " antioxidizing paint of graphitiferous refractory materials ", Chinese patent CN1066078A " antioxidizing paint of aluminum-carbon refractory and preparation method thereof ".The antioxidizing paint that also has is that wedding agent and addition material are separated, but need when being to use to apply again after the field mix, also need after the coating etc. could to use after the drying, above reason makes thermometric work-ing life not long, maximum 23 hours, also ftracture, thereby increased production cost than being easier to.
Summary of the invention
For solving the prior art existing problems; the invention provides a kind of carbon containing temperature tube antioxidizing paint and preparation method thereof and using method; described antioxidizing paint is compared with the antioxidizing paint of common grinding, and size ratio is less, and composition profiles is more even; coating is not easy to bubble; screening characteristics is strong, and the resistance to heat shocks of coating can be better, and this coating can form the protective layer of one deck densification on the temperature tube surface; prevent the erosion of molten steel and slag, have extremely strong anti-oxidation effect temperature tube.
For achieving the above object, carbon containing temperature tube antioxidizing paint provided by the invention, the weight percent of its component (%) is: filler 40-59.9%, wedding agent 40-59.9%, opacifying agent 0.1-0.4%; Described filler is a silicon-dioxide, and described wedding agent is: kaolin micro mist 27.15-39.9%, boric acid 8-11%, aluminium dihydrogen phosphate 1-2%, silicon powder 1-3%, yellow starch gum 2.5-3.5%, chromic oxide 0.35-0.5%.
The present invention also provides the preparation method of carbon containing temperature tube antioxidizing paint: at first with the silicon-dioxide of 40-59.9%, the described wedding agent of 40-59.9%, the opacifying agent of 0.1-0.4% is evenly mixed, makes described antioxidizing paint then behind high speed ball milling on the ball mill.
The weight percentages of components of described wedding agent (%) is: kaolin micro mist 27.15-39.9%, boric acid 8-11%, aluminium dihydrogen phosphate 1-2%, silicon powder 1-3%, yellow starch gum 2.5-3.5%, chromic oxide 0.35-0.5%.
Described drum's speed of rotation 450-500rmp, ball milling 10-15 hour.
The present invention also provides the using method of carbon containing temperature tube antioxidizing paint: at first with the silicon-dioxide of 40-59.9%, the described wedding agent of 40-59.9%, the opacifying agent of 0.1-0.4% is evenly mixed, high speed ball milling on ball mill then, then the levigated antioxidizing paint is added and be sprayed on the temperature tube the directly use of baking back after water is mixed well.
Amount of water when mixing well is the 10-12% of described antioxidizing paint total amount.
Described baking process is: storing temperature 90-150 ℃, toasted 4-10 hour.
The present invention also provides the another kind of using method of carbon containing temperature tube antioxidizing paint: finished product carbon containing temperature tube antioxidizing paint is added be sprayed on the temperature tube after water is mixed well, the directly use of baking back.
Amount of water when mixing well is the 10-12% of described antioxidizing paint total amount.
Described baking process is: storing temperature 90-150 ℃, toasted 4-10 hour.
Compared with prior art, the present invention has the following advantages:
This coating is through high speed ball mill ball milling (rotating speed 450-500rmp; ball milling 10-15 hour) after; compare with the antioxidizing paint of common grinding, size ratio is less, and composition profiles is more even; coating is not allowed easy foaming; screening characteristics is strong, and the resistance to heat shocks of coating can be better, and this coating can form the protective layer of one deck densification on the temperature tube surface; prevent the erosion of molten steel and slag, have extremely strong anti-oxidation effect temperature tube.Generally be 23 hours temperature tube work-ing life that applies at present existing antioxidizing paint, and the temperature tube of coating this patent antioxidizing paint, oxidation-resistance and anti-molten steel slag aggressiveness have very large raising, brought up to 30 hour from 23 hours work-ing life, improved 30% work-ing life, can satisfy the needs in the actual production process fully, greatly reduce production cost, reduce detrimentally affect production process.
After this coating is coated on the temperature tube, needn't burn till, can directly use after baking (storing temperature 90-150 ℃ was toasted 4-10 hour) drying, greatly reduce production cost through high temperature.
The contained component of this coating is nontoxic, interpolation opacifying agent rear stability is good, is convenient to storage, and is easy to use, easy to operate.
Embodiment:
The present invention relates to a kind of carbon containing temperature tube antioxidizing paint and preparation method thereof and using method, it is with the kaolin micro mist of 27.15-39.9%, the boric acid of 8-11%, the aluminium dihydrogen phosphate of 1-2%, the silicon powder of 1-3%, the yellow starch gum of 2.5-3.5%, the chromic oxide of 0.35-0.5% is as wedding agent, overcome the unstable shortcoming of high temperature of the chemical bond that with the water glass is representative, the stability of coating is strengthened.
Embodiment 1
At first with 40% silicon-dioxide, 39.9% kaolin micro mist, 11% boric acid, 2% aluminium dihydrogen phosphate, 3% silicon powder, 3.5% yellow starch gum, 0.5% chromic oxide, 0.1% opacifying agent is evenly mixed, then high speed ball milling on ball mill, drum's speed of rotation 450rmp, ball milling 15 hours adds the levigated antioxidizing paint then and is sprayed on the temperature tube the directly use of baking back after 10% water is mixed well, 90 ℃ of storing temperatures toasted 10 hours.
The carbon containing temperature tube use temperature that applies antioxidizing paint of the present invention reaches 1560 ℃, normal 32 hours work-ing life.
Embodiment 2
At first with 50% silicon-dioxide, 34% kaolin micro mist, 9% boric acid, 1.4% aluminium dihydrogen phosphate, 2% silicon powder, 3% yellow starch gum, 0.4% chromic oxide, 0.2% opacifying agent is evenly mixed, then high speed ball milling on ball mill, drum's speed of rotation 480rmp, ball milling 12 hours adds the levigated antioxidizing paint then and is sprayed on the temperature tube the directly use of baking back after 11% water is mixed well, 120 ℃ of storing temperatures toasted 7 hours.
The carbon containing temperature tube use temperature that applies antioxidizing paint of the present invention reaches 1560 ℃, normal 31.5 hours work-ing life.
Embodiment 3
At first with 59.25% silicon-dioxide, 27.5% kaolin micro mist, 8% boric acid, 1% aluminium dihydrogen phosphate, 1% silicon powder, 2.5% yellow starch gum, 0.35% chromic oxide, 0.4% opacifying agent is evenly mixed, then high speed ball milling on ball mill, drum's speed of rotation 500rmp, ball milling 10 hours adds the levigated antioxidizing paint then and is sprayed on the temperature tube the directly use of baking back after 12% water is mixed well, 150 ℃ of storing temperatures toasted 4 hours.
The carbon containing temperature tube use temperature that applies antioxidizing paint of the present invention reaches 1560 ℃, normal 30.2 hours work-ing life.
Embodiment 4
At first with 45% silicon-dioxide, 37% kaolin micro mist, 10% boric acid, 1.5% aluminium dihydrogen phosphate, 2.5% silicon powder, 3.3% yellow starch gum, 0.45% chromic oxide, 0.25% opacifying agent is mixed evenly, high speed ball milling on ball mill then, drum's speed of rotation 470rmp, ball milling 13 hours, then that the levigated antioxidizing paint is canned, make the antioxidizing paint finished product, store and use or sale in the future.
Above-mentioned finished product antioxidizing paint added be sprayed on the temperature tube after 11.5% water is mixed well, the directly use of baking back, 110 ℃ of storing temperatures toasted 8 hours.
The carbon containing temperature tube use temperature that applies antioxidizing paint of the present invention reaches 1560 ℃, normal 31 hours work-ing life.
Embodiment 5
At first with 52% silicon-dioxide, 29% kaolin micro mist, 8.3% boric acid, 1.1% aluminium dihydrogen phosphate, 1.2% silicon powder, 2.7% yellow starch gum, 0.38% chromic oxide, 0.32% opacifying agent is mixed evenly, high speed ball milling on ball mill then, drum's speed of rotation 490rmp, ball milling 10 hours, then that the levigated antioxidizing paint is canned, make the antioxidizing paint finished product, store and use or sale in the future.
Above-mentioned finished product antioxidizing paint added be sprayed on the temperature tube after 10.5% water is mixed well, the directly use of baking back, 130 ℃ of storing temperatures toasted 5 hours.
The carbon containing temperature tube use temperature that applies antioxidizing paint of the present invention reaches 1560 ℃, normal 32.2 hours work-ing life.
Embodiment 6
At first with 47% silicon-dioxide, 32% kaolin micro mist, 8% boric acid, 2% aluminium dihydrogen phosphate, 2% silicon powder, 2.5% yellow starch gum, 0.35% chromic oxide, 0.15% opacifying agent is mixed evenly, high speed ball milling on ball mill then, drum's speed of rotation 460rmp, ball milling 14 hours, then that the levigated antioxidizing paint is canned, make the antioxidizing paint finished product, store and use or sale in the future.
Above-mentioned finished product antioxidizing paint added be sprayed on the temperature tube after 11.5% water is mixed well, the directly use of baking back, 100 ℃ of storing temperatures toasted 8 hours.
The carbon containing temperature tube use temperature that applies antioxidizing paint of the present invention reaches 1560 ℃, normal 30.5 hours work-ing life.
Claims (10)
1. a carbon containing temperature tube antioxidizing paint is characterized in that, the weight percent of its component (%) is: filler 40-59.9%, wedding agent 40-59.9%, opacifying agent 0.1-0.4%; Described filler is a silicon-dioxide, and described wedding agent is: kaolin micro mist 27.15-39.9%, boric acid 8-11%, aluminium dihydrogen phosphate 1-2%, silicon powder 1-3%, yellow starch gum 2.5-3.5%, chromic oxide 0.35-0.5%.
2. carbon containing temperature tube antioxidizing paint according to claim 1 is characterized in that described opacifying agent is zinc oxide.
3. method for preparing the described carbon containing temperature tube of claim 1 antioxidizing paint, it is characterized in that, at first with the silicon-dioxide of 40-59.9%, the described wedding agent of 40-59.9%, the opacifying agent of 0.1-0.4% is evenly mixed, makes described antioxidizing paint then behind high speed ball milling on the ball mill.
4. as preparing the method for carbon containing temperature tube antioxidizing paint as described in the claim 3, it is characterized in that described drum's speed of rotation 450-500rmp, ball milling 10-15 hour.
5. the using method of a carbon containing temperature tube antioxidizing paint, it is characterized in that, at first with the silicon-dioxide of 40-59.9%, the described wedding agent of 40-59.9%, the opacifying agent of 0.1-0.4% is evenly mixed, high speed ball milling on ball mill then adds the levigated antioxidizing paint then and is sprayed on the temperature tube the directly use of baking back after water is mixed well.
6. the using method of carbon containing temperature tube antioxidizing paint as claimed in claim 5 is characterized in that, amount of water is the 10-12% of described antioxidizing paint total amount.
7. the using method of carbon containing temperature tube antioxidizing paint as claimed in claim 5 is characterized in that, described baking process is: storing temperature 90-150 ℃, toasted 4-10 hour.
8. the using method of a carbon containing temperature tube antioxidizing paint is characterized in that, will add as the finished product carbon containing temperature tube antioxidizing paint of method preparation as described in the claim 3 to be sprayed on the temperature tube after water is mixed well, and directly use the baking back.
9. the using method of carbon containing temperature tube antioxidizing paint as claimed in claim 8 is characterized in that, amount of water is the 10-12% of described antioxidizing paint total amount.
10. the using method of carbon containing temperature tube antioxidizing paint as claimed in claim 8 is characterized in that, described baking process is: storing temperature 90-150 ℃, toasted 4-10 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010284111 CN101973769B (en) | 2010-09-10 | 2010-09-10 | Carbon-containing temperature measurement tube oxidation-resistance coating as well as preparation method and using method thereof |
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| CN 201010284111 CN101973769B (en) | 2010-09-10 | 2010-09-10 | Carbon-containing temperature measurement tube oxidation-resistance coating as well as preparation method and using method thereof |
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| CN101973769A true CN101973769A (en) | 2011-02-16 |
| CN101973769B CN101973769B (en) | 2013-01-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225867A (en) * | 2011-05-24 | 2011-10-26 | 河南益丰高温材料股份有限公司 | Silicon carbide furnace door brick for ore-smelting electric furnace and preparation method thereof |
| CN105132651A (en) * | 2015-09-16 | 2015-12-09 | 南京科润工业介质股份有限公司 | Anti-carburizing painting capable of being removed through washing after quenching and preparation method thereof |
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| CN1876729A (en) * | 2006-07-03 | 2006-12-13 | 张义纲 | Easily dispersed aluminum phosphate film-wrapped powder and preparation method thereof |
| CN101045828A (en) * | 2006-07-03 | 2007-10-03 | 张义纲 | Phosphate film-coated powder and preparation method thereof |
| CN101255298A (en) * | 2007-12-28 | 2008-09-03 | 马鞍山钢铁股份有限公司 | Non-oriented electrical steel chromium-free insulation paint |
| CN101358106A (en) * | 2008-09-25 | 2009-02-04 | 武汉工程大学 | Anti-icing nano composite paint and application |
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2010
- 2010-09-10 CN CN 201010284111 patent/CN101973769B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876729A (en) * | 2006-07-03 | 2006-12-13 | 张义纲 | Easily dispersed aluminum phosphate film-wrapped powder and preparation method thereof |
| CN101045828A (en) * | 2006-07-03 | 2007-10-03 | 张义纲 | Phosphate film-coated powder and preparation method thereof |
| CN101255298A (en) * | 2007-12-28 | 2008-09-03 | 马鞍山钢铁股份有限公司 | Non-oriented electrical steel chromium-free insulation paint |
| CN101358106A (en) * | 2008-09-25 | 2009-02-04 | 武汉工程大学 | Anti-icing nano composite paint and application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225867A (en) * | 2011-05-24 | 2011-10-26 | 河南益丰高温材料股份有限公司 | Silicon carbide furnace door brick for ore-smelting electric furnace and preparation method thereof |
| CN102225867B (en) * | 2011-05-24 | 2013-04-17 | 河南益丰高温材料股份有限公司 | Silicon carbide furnace door brick for ore-smelting electric furnace and preparation method thereof |
| CN105132651A (en) * | 2015-09-16 | 2015-12-09 | 南京科润工业介质股份有限公司 | Anti-carburizing painting capable of being removed through washing after quenching and preparation method thereof |
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| CN101973769B (en) | 2013-01-30 |
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Address after: 243003 Department of intellectual property right of Hunan West Road No. 8 technology center, Ma'anshan City, Anhui Province Patentee after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 Hunan Anhui West Road, No. 8 technology center, Intellectual Property Department Patentee before: Ma'anshan Iron and Steel Co., Ltd. |
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Address after: 243003 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Patentee after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Patentee before: Ma'anshan Iron and Steel Co., Ltd. |