CN1192066C - Inorganic high-temperature antiwear paint - Google Patents
Inorganic high-temperature antiwear paint Download PDFInfo
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- CN1192066C CN1192066C CNB021582211A CN02158221A CN1192066C CN 1192066 C CN1192066 C CN 1192066C CN B021582211 A CNB021582211 A CN B021582211A CN 02158221 A CN02158221 A CN 02158221A CN 1192066 C CN1192066 C CN 1192066C
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- resistant coating
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Abstract
本发明公开了一种无机高温耐磨涂料。它由胶粘剂、固体润滑剂、防粘剂、润湿剂、助剂、溶剂组成。胶粘剂是酸性磷酸铝，固体润滑剂为石墨，防粘剂为氮化钛、氮化硼、二硫化钨，润湿剂为吐温80，助剂为氧化铅，溶剂为水。本发明的无机高温耐磨涂料使用方便，直接擦涂于经清洗干净的金属表面，经过高温固化即成干膜润滑涂层。本发明的涂层适用于室温至500℃以下温度条件下的热加工模具、零件的防粘、润滑。The invention discloses an inorganic high-temperature wear-resistant coating. It consists of adhesives, solid lubricants, anti-sticking agents, wetting agents, additives, and solvents. The adhesive is acid aluminum phosphate, the solid lubricant is graphite, the antisticking agent is titanium nitride, boron nitride, tungsten disulfide, the wetting agent is Tween 80, the auxiliary agent is lead oxide, and the solvent is water. The inorganic high-temperature wear-resistant coating of the invention is easy to use, can be directly wiped on the cleaned metal surface, and can be cured at high temperature to form a dry-film lubricating coating. The coating of the invention is suitable for anti-sticking and lubricating of thermal processing molds and parts under the temperature condition of room temperature to below 500°C.
Description
The technical field is as follows:
the invention relates to an inorganic high-temperature wear-resistant coating. In particular, the invention relates to a coating which is suitable for hot working of dies and parts at room temperature to 500 ℃ and has excellent anti-sticking, anti-wear, antifriction and lubricating properties.
Background art:
the high-temp. wear-resistant paint is a special paint, and is made up by using adhesive to adhere solid lubricant and its filler on the metal base material so as to obtain the actions of resisting adhesion and lubricating. At present, inorganic adhesives such as silicate and phosphate are mostly adopted in high-temperature wear-resistant coatings with the use temperature of more than 400 ℃.
In the hot working demoulding process, such as the production of a television glass shell, a high-temperature lubricant needs to be wiped on a mould on site to ensure that the surface of a product is smooth and has no cracks, and meanwhile, the lubricant is required not to be adhered to the surface of the product.
The invention content is as follows:
the invention aims to overcome the defects of the prior art, provides an inorganic high-temperature wear-resistant coating, solves the problems of adhesion resistance and lubrication in the hot processing and demolding process in a high-temperature environment, and can be wiped on a mold on site for use.
The object ofthe invention is achieved by the following measures:
an inorganic high-temp antiwear paint is prepared from adhesive, solid lubricant, antisticking agent, wetting agent, assistant and solvent. The adhesive is acidic aluminum phosphate, the solid lubricant is graphite, the anti-sticking agent is titanium nitride, boron nitride and tungsten disulfide, the wetting agent is tween 80, the auxiliary agent is lead oxide, and the solvent is water. The weight portion groups are as follows: 100 parts of acidic aluminum phosphate, 30-80 parts of graphite, 50-100 parts of lead oxide, 801-20 parts of tween, 3-15 parts of titanium nitride, 3-15 parts of boron nitride, 3-15 parts of tungsten disulfide and 300-600 parts of water.
The chemical reaction equation of the acidic aluminum phosphate is as follows:
PO in the obtained reactant4 3-With Al3+The molar ratio of (A) to (B) is 1.4: 1-1.9: 1.
The graphite of the invention is gray black micro powder with high dispersibility and no adhesion. Specific gravity: 2.27, granularity less than 5 μm, molecular formula C, molecular weight 12.01.
The lead oxide is yellow powder, has the density of 9.2-9.5, the purity of 98.0 percent, the molecular formula of PbO and the molecular weight of 223.2.
The Tween 80 is polyoxyalkylene sorbitan oleate, is dissolved in water and is easy to disperse.
The titaniumnitride is golden yellow powder, has the melting point of 2950 ℃ and the density of 5.43, is suitable for the fields of high temperature resistance and wear resistance, has the molecular formula of TiN, and has the molecular weight of 61.88.
The boron nitride is white loose powder, the density is 2.25, the melting point is 3000 ℃, the granularity is less than 5 mu m, the molecular formula is BN, and the molecular weight is 24.82.
The tungsten disulfide is brown or black powder, is slightly soluble in cold water and hot water, has the granularity less than 5 mu m, and has the molecular formula of WS2And the molecular weight is 247.85.
The solvent used in the invention is water, and the solid content of the coating is generally controlled between 30 percent and 50 percent in order to ensure the uniformity of wiping.
The preparation of the inorganic high-temperature wear-resistant coating is realized by the following measures:
the required phosphoric acid and aluminum hydroxide were accurately weighed and the aluminum hydroxide was equally divided into two parts. Mixing one part of aluminum hydroxide and phosphoric acid, putting the mixture into a ball milling tank for grinding for 1 hour, adding the rest aluminum hydroxide for further grinding for 2 hours, adding water for grinding for 1 hour. Taking out and naturally settling until the solution is clear and transparent. Taking out supernatant, adding solid lubricant, anti-sticking agent, wetting agent and auxiliary agent, adding proper amount of water, stirring uniformly, and grinding twice by a colloid mill to obtain the inorganic high-temperature wear-resistant coating.
The application method of the coating is that when the coating is used for the first time, the mould is required to be cleaned before the mould isheated. Can be cleaned with gasoline, kerosene or acetone and air dried. When the mold is heated to the use temperature, the inorganic high-temperature wear-resistant coating can be directly wiped on the surface of the mold by using a high-temperature resistant brush. The coating can be cured into an inorganic high-temperature wear-resistant coating.
The inorganic high-temperature wear-resistant coating can be lubricated and also can be anti-sticking. Can solve the problems of hot processing of the die and demoulding of parts under the temperature of below 500 ℃.
The specific implementation mode is as follows:
example 1:
100g of phosphoric acid and 30g of aluminum hydroxide are weighed, mixed and put into a ball milling pot for grinding for 1 hour, then 30g of aluminum hydroxide is added for further grinding for 2 hours, and then 200g of water is added for grinding for 1 hour. Taking out and naturally settling until the solution is clear and transparent. And taking out the supernatant, adding 40g of graphite, 60g of lead oxide, 8010 g of tween, 5g of boron nitride, 5g of tungsten disulfide and 200g of water, uniformly stirring, and grinding twice by using a colloid mill to obtain the coating.
Example 2:
the preparation is carried out in the same manner as in example 1, the formulation being as given in Table 1 (weight in grams)
TABLE 1
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021582211A CN1192066C (en) | 2002-12-19 | 2002-12-19 | Inorganic high-temperature antiwear paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021582211A CN1192066C (en) | 2002-12-19 | 2002-12-19 | Inorganic high-temperature antiwear paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1421495A CN1421495A (en) | 2003-06-04 |
| CN1192066C true CN1192066C (en) | 2005-03-09 |
Family
ID=4753093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021582211A Expired - Fee Related CN1192066C (en) | 2002-12-19 | 2002-12-19 | Inorganic high-temperature antiwear paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1192066C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906347A (en) * | 2010-08-05 | 2010-12-08 | 安徽工业大学 | A water-based high temperature resistant solid lubricating coating cured at room temperature and preparation method thereof |
| CN102226125B (en) * | 2011-05-17 | 2013-05-29 | 安徽工业大学 | A kind of inorganic high temperature resistant dry film lubricant |
| GB2518031B (en) * | 2014-06-13 | 2016-01-06 | Meggitt Aerospace Ltd | A carbon article having an improved primer coating and an improved anti-oxidant coating |
| CN104046061A (en) * | 2014-06-18 | 2014-09-17 | 谢光玉 | Inorganic high-temperature corrosion-resistant lubricating coating |
| CN107201066B (en) * | 2017-07-28 | 2019-10-15 | 宋振亚 | A kind of anti-sticking aluminium paint |
-
2002
- 2002-12-19 CN CNB021582211A patent/CN1192066C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1421495A (en) | 2003-06-04 |
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