CN101348619B - High temperature metallic inorganic coating for labels and preparation thereof - Google Patents
High temperature metallic inorganic coating for labels and preparation thereof Download PDFInfo
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- CN101348619B CN101348619B CN2007100924531A CN200710092453A CN101348619B CN 101348619 B CN101348619 B CN 101348619B CN 2007100924531 A CN2007100924531 A CN 2007100924531A CN 200710092453 A CN200710092453 A CN 200710092453A CN 101348619 B CN101348619 B CN 101348619B
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- inorganic paint
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Abstract
The invention discloses an inorganic paint for labeling high-temperature metal. The content (in parts by weight) and components of the inorganic paint is as follows: 5 to 50 parts of waterglass, 1 to 10 parts of nitrate, 1 to 10 parts of nano-metatitanic acid and 2 to 20 parts of nitrite. The inorganic paint is silicon-gelatinized, the coating 4 cup viscosity range is regulated between 17 and 35 seconds by blowing into carbon dioxide. The paint has excellent adhesive force on the surface of high-temperature metal, and can be sprayed manually or be sprayed automatically by use of spraying equipment.
Description
Technical field
The present invention relates to a kind of coating of label hot metal, specifically relate to a kind ofly under 200～700 ℃ of states of high temperature, carry out artificial or spraying equipment sprays inorganic paint of label and preparation method thereof automatically steel.
Background technology
The coating that is used at present on the steel mainly is to carry out anticorrosion and fire prevention to various steel construction, and the kind of this coating is divided into organic and inorganic two kinds.The use of these coating all is to brush under normal temperature condition, uses under various conditions after the drying again.Steel surface carries out label under the hot conditions if directly these coating are used for, because steel surface and low-temperature steel iron surface tensile greatest differences, these coating are difficult to attached to the metallic surface.There is the low problem of high temperature sticking power in the high-temperature coatings of steel mill's use at present for above-mentioned reasons, influences the quality monitoring of Iron and Steel Production.Have from the high temperature of external import and spray word coating owing to be organic coating, not only still there is the low and high temperature easy firing defective of high temperature sticking power in the valency height.
Summary of the invention
Technical problem to be solved by this invention provides a kind of inorganic paint, and this inorganic paint has good sticking power on the hot metal surface, and is not fallen by water or other its solvent flush when low temperature, to satisfy the requirement that the high-temperature steel plate mark keeps legibility.
Another technical problem to be solved by this invention provides the preparation method of this inorganic paint.
Inorganic paint of the present invention comprises following raw materials according by weight: 5～50 parts of water glass, 1～10 part in nitrate, 1～10 part of nanometer metatitanic acid, 2～20 parts of nitrite, the feeding carbonic acid gas is regulated and is coated with 4 glasss of range of viscosities is 17～35 seconds, the described raw material of silica gelization.
Modulus of water glass is the important parameter of water glass, and modulus of water glass is big more, and solid water glass is insoluble in water more, and silica content is many more, and water glass viscosity increases, and is easy to decompose sclerosis, and cohesive force increases.Water glass of the present invention is selected from least a in low modulus and the soluble glass of high modulus.
Described nitrate is selected from SODIUMNITRATE, saltpetre or nitrocalcite.The preferred nanometer metatitanic acid of described metatitanic acid.
Described nitrite is selected from least a in Sodium Nitrite and the potassium nitrite, is used to strengthen ADHESION OF PAINTS power, wear resistance and elasticity, and described inorganic paint also contains 1～20 part of ethylene glycol, and nitrite can improve the effect of ethylene glycol high temperature cabonization simultaneously.
Ethylene glycol has delayed coagulation, when spraying label automatically with spraying equipment, can improve the on-the-spot coating obstruction of high temperature label spray gun by adding ethylene glycol.
Be the stability of improving coating and painted to label, described inorganic paint also can contain 4～8 parts of 1～10 part of titanium dioxide or chromium sesquioxides, the wherein preferred Rutile type Titanium Dioxide of titanium dioxide.
Described silica gel inorganic paint is to point in the inorganic paint to feed carbonic acid gas.
The preparation method of label high-temperature metal inorganic coating of the present invention comprises the steps:
(1) in reactor, adds 10 liters of distilled water, the water of reaction vessel is adjusted pH value to 1～7.Under powerful stirring condition, rotate and add titanium tetrachloride solution and yellow soda ash (or volatile salt) solution, the pH value that keeps solution simultaneously is 1～7 fluctuation, temperature of reaction is 10～80 ℃, adding titanium tetrachloride solution and yellow soda ash (or volatile salt) placed after 30 minutes, vacuum filtration washes neutrality with water and promptly gets the nanometer metatitanic acid;
(2) component of pressing the above content is mixed with water, grinds its fineness is reached below the 30 μ m;
(3) in the mixture of step (2) gained, feed carbon dioxide and make its silica gelization, adjust its viscosity for be coated with 4 glasss 17～35 seconds, and mix and make the finished product inorganic paint.
The present invention has following advantage:
1, labeled coating of the present invention is on the basis of used usually water glass, carry out sour gas silica gelization, and add nitrate modification is carried out on the hot metal surface, the wear resistance and the elasticity that add nitrite increase coating, therefore improve the high temperature sticking power of coating and the flexibility of coating greatly, thereby improved the water tolerance and the erasibility of word.
2, the present invention has adopted metatitanic acid to make coating have good storage stability and sprayability.
3, labeled coating of the present invention adopts and adds glycol silicate slow setting technology, makes the coating skinning time postpone till one to two day from 30 minutes, and making this coating and produce can more good coupling, and provides technical guarantee for equipment uses.
Embodiment below in conjunction with embodiment is described in further detail the present invention, but this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.Do not breaking away under the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made include within the scope of the invention.
Embodiment
At first, in reactor, add 10 liters of distilled water, the water of reaction vessel is adjusted pH value to 1～7.Under powerful stirring condition, rotating adds titanium tetrachloride solution and yellow soda ash (or volatile salt) solution, and the pH value that keeps solution simultaneously is 1～7 fluctuation, and temperature of reaction is 10～80 ℃.Add titanium tetrachloride solution and yellow soda ash after 30 minutes, vacuum filtration washes neutrality with water and promptly gets the nanometer metatitanic acid.
10 kilograms of Rutile type Titanium Dioxides, 51 kilograms of high mould potassium type water glass, 27 kilograms of low mould sodium type water glass, 2 kilograms of SODIUMNITRATE, Sodium Nitrite and 4 kilograms of potassium nitrites, 10 kilograms of nanometer metatitanic acids, 2 kilograms of ethylene glycol, 15 kilograms in water, mixing under dispersion machine stirs, use sand mill then, or three barrelings are ground to fineness≤30 μ m; Feeding carbonic acid gas adjustment viscosity again is 17～35 seconds (being coated with 4 glasss), promptly makes the inorganic paint of label hot metal.
With the high-temperature metal inorganic labeled coating of the invention described above preparation, 360 ℃ of iron plates surface sprayings and be incubated 1 hour, naturally cool to room temperature then, be soaked in water 50 hours, with the organic coating of external label hot metal its sticking power relatively under the same conditions.External product has combustion phenomena to occur when pyrolytic coating, and after low temperature was soaked in water, external organic coating incrustation occurred and stripped off phenomenon; After inorganic paint of the present invention did not only have combustion phenomena and is immersed in water, it is clear that high-temperature steel plate mark writing keeps.
Claims (7)
1. the inorganic paint of a label hot metal, it is characterized in that, comprise following raw materials according by weight: 5～50 parts of water glass, 1～10 part in nitrate, 1～10 part of nanometer metatitanic acid, 2～20 parts of nitrite, the feeding carbonic acid gas is regulated and is coated with 4 glasss of range of viscosities is 17～35 seconds, the described raw material of silica gelization.
2. the inorganic paint of a kind of label hot metal according to claim 1 is characterized in that, described water glass is selected from least a in low modulus and the soluble glass of high modulus.
3. the inorganic paint of a kind of label hot metal according to claim 1 is characterized in that, described nitrite is selected from least a in Sodium Nitrite and the potassium nitrite.
4. the inorganic paint of a kind of label hot metal according to claim 1 is characterized in that, described inorganic paint also contains 4～8 parts of 1～10 part of titanium dioxide or chromium sesquioxides.
5. the inorganic paint of a kind of label hot metal according to claim 4 is characterized in that, described titanium dioxide is a Rutile type Titanium Dioxide.
6. the inorganic paint of a kind of label hot metal according to claim 1 is characterized in that, described inorganic paint also contains 1～20 part of ethylene glycol.
7. the preparation method of the described label high-temperature metal inorganic of claim 1 coating is characterized in that, comprises the steps:
(1) in reactor, adds 10 liters of distilled water, the water of reaction vessel is adjusted pH value to 1～7, under powerful stirring condition, rotate to add titanium tetrachloride solution and sodium carbonate solution or rotate and add titanium tetrachloride solution and sal volatile, the pH value that keeps solution simultaneously is 1～7 fluctuation, temperature of reaction is 10～80 ℃, add titanium tetrachloride solution and sodium carbonate solution or add titanium tetrachloride solution and sal volatile was placed after 30 minutes, vacuum filtration washes neutrality with water and promptly gets the nanometer metatitanic acid;
(2) component of pressing the described content of claim 1 is mixed with water, grinds its fineness is reached below the 30 μ m;
(3) in the mixture of step (2) gained, feed carbon dioxide and make its silica gelization, adjust its viscosity for be coated with 4 glasss 17～35 seconds, and mix and make the finished product inorganic paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100924531A CN101348619B (en) | 2007-07-18 | 2007-07-18 | High temperature metallic inorganic coating for labels and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100924531A CN101348619B (en) | 2007-07-18 | 2007-07-18 | High temperature metallic inorganic coating for labels and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348619A CN101348619A (en) | 2009-01-21 |
| CN101348619B true CN101348619B (en) | 2011-09-28 |
Family
ID=40267606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100924531A Expired - Fee Related CN101348619B (en) | 2007-07-18 | 2007-07-18 | High temperature metallic inorganic coating for labels and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101348619B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008197A (en) * | 2012-12-11 | 2013-04-03 | 武汉神月科技有限公司 | Method for identifying casting blank by glass water |
| CN112680002A (en) * | 2020-12-14 | 2021-04-20 | 湖南镭目科技有限公司 | High-temperature steel part label coating and preparation method thereof |
| CN115851007B (en) * | 2022-12-17 | 2024-08-09 | 化学与精细化工广东省实验室 | High-temperature steel thermal spraying marking paint and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093383A (en) * | 1994-04-23 | 1994-10-12 | 华中理工大学 | Metal type coating series |
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2007
- 2007-07-18 CN CN2007100924531A patent/CN101348619B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093383A (en) * | 1994-04-23 | 1994-10-12 | 华中理工大学 | Metal type coating series |
Non-Patent Citations (3)
| Title |
|---|
| 王箴.化工辞典（第四版）.化学工业出版社,2006,338. * |
| 甘玉生.影响水玻璃涂料性能的因素.铸造51 10.2002,51(10),646-648. |
| 甘玉生.影响水玻璃涂料性能的因素.铸造51 10.2002,51(10),646-648. * |
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| Publication number | Publication date |
|---|---|
| CN101348619A (en) | 2009-01-21 |
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Granted publication date: 20110928 Termination date: 20120718 |