CN108746483B - Sapphire-based composite coating - Google Patents
Sapphire-based composite coating Download PDFInfo
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- CN108746483B CN108746483B CN201810722423.2A CN201810722423A CN108746483B CN 108746483 B CN108746483 B CN 108746483B CN 201810722423 A CN201810722423 A CN 201810722423A CN 108746483 B CN108746483 B CN 108746483B
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- kyanite
- raw materials
- based composite
- composite coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the field of paint preparation, and particularly relates to a kyanite-based composite paint and a preparation method thereof; the method comprises the following raw materials: bauxite, kaolin, kyanite, andalusite, chromite, zircon sand, hematite, microcrystalline graphite, sillimanite; the preparation method of the kyanite-based composite coating comprises the following steps: crushing the raw materials, weighing the raw materials in proportion, loading the raw materials into a bucket elevator, unloading the raw materials into a planetary sand mixer, mixing and stirring, discharging and packaging to obtain the material; the coating prepared by the invention has good thixotropy and leveling property, and the coating is seamless.
Description
Technical Field
The invention belongs to the field of paint preparation, and particularly relates to a kyanite-based composite paint and a preparation method thereof.
Background
The existing casting coating is mainly divided into two categories of alcohol group and water group. The suspension rate is low, and the field operation is not easy. The suspension property is too low, and the phenomena of uneven brushing, peeling after drying and foaming are easy to occur in use. In addition, the traditional graphite coating has poor binding property with the aggregate in the coating when used on a molten metal casting ladle, a transfer ladle and a treatment ladle due to the difference of refractory aggregate and different binding agents.
Disclosure of Invention
The invention provides a kyanite-based composite coating and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
a kyanite-based composite coating comprises the following raw materials: bauxite, kaolin, kyanite, andalusite, chromite, zircon sand, hematite, microcrystalline graphite and sillimanite.
Further, the feed comprises the following raw materials in parts by weight: 20-60% of kyanite, 10-20% of bauxite, 2-5% of kaolin, 5-60% of zircon sand, 10-50% of chromite, 2-5% of hematite, 2-5% of microcrystalline graphite, 2-5% of andalusite and 2-5% of sillimanite.
Further, the preparation method of the kyanite-based composite coating comprises the following steps: pulverizing the raw materials, weighing the raw materials in proportion, loading into a bucket elevator, unloading into a planetary sand mixer, mixing, stirring, discharging, and packaging.
Furthermore, the crushing particle size of each raw material is 100-250 meshes.
Further, the mixing and stirring time is 60 to 120 minutes.
Further, when used, the weight ratio of water to material is 65: 100 when mixed with water.
Compared with the prior art, the invention has at least one of the following beneficial effects:
1. the refractoriness of the raw materials in the formula is higher than 1790 ℃, exceeds the temperature of the cast molten iron, and has better refractory performance.
2. The kaolin, the hematite and the ceramic clay in the raw materials of the formula have low-temperature plastic deformation performance and better deformation resistance.
3. The kyanite high-temperature calcination is added in the formula, so that the problem of volume shrinkage of medium-low temperature fission minerals and organic matters under a high-temperature condition can be solved, and the total volume is unchanged.
4. Under the condition of the formula, the acid and the alkali are balanced, and the casting cannot be corroded.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A kyanite-based composite coating comprises the following raw materials: the raw materials in the formula of the invention have refractoriness of more than 1790 ℃, exceed the temperature of cast molten iron, and have better refractory performance.
Example 2
A kyanite-based composite coating comprises the following raw materials in parts by weight: 20% of kyanite, 10% of bauxite, 2% of kaolin, 50% of zircon sand, 10% of chromite, 2% of hematite, 2% of microcrystalline graphite, 2% of andalusite and 2% of sillimanite.
Example 3
A kyanite-based composite coating comprises the following raw materials in parts by weight: 40% of kyanite, 15% of bauxite, 3% of kaolin, 10% of zircon sand, 20% of chromite, 3% of hematite, 3% of microcrystalline graphite, 3% of andalusite and 3% of sillimanite, and the kyanite high-temperature calcination is added in the formula, so that the problem of volume shrinkage of low-temperature fission minerals and organic matters under a high-temperature condition can be solved, and the total volume is unchanged.
Example 4
A kyanite-based composite coating comprises the following raw materials in parts by weight: 60% of kyanite, 10% of bauxite, 2% of kaolin, 5% of zircon sand, 15% of chromite, 2% of hematite, 2% of microcrystalline graphite, 2% of andalusite and 2% of sillimanite, and under the condition of the formula, acid-base balance is achieved, and a casting cannot be corroded.
Example 5
The preparation method of the kyanite-based composite coating comprises the steps of crushing the raw materials, weighing the raw materials in proportion, loading the raw materials into a bucket elevator, unloading the raw materials into a planetary sand mixer, mixing and stirring, discharging and packaging.
Example 6
In example 5, the pulverized particle size of each raw material was 100 mesh, and the mesh number of the raw material was limited, whereby the produced raw material flow was good in flatness.
Example 7
In example 5, the pulverized particle size of each raw material was 200 mesh, and the mesh number of the raw material was limited, so that the produced raw material stream was good in flatness.
Example 8
In example 5, the pulverized particle size of each raw material was 250 mesh, and the mesh number of the raw material was limited, whereby the produced raw material flow was good in flatness.
Example 9
In addition to example 5, the mixing and stirring time was set to 60 minutes, and the coating material prepared thereby was good in uniformity.
Example 10
In addition to example 5, the mixing and stirring time was 90 minutes, and the stirring time was set so that the coating material prepared could have good uniformity.
Example 11
In addition to example 5, the mixing and stirring time was set to 120 minutes, and the coating material prepared was good in uniformity.
Example 12
Based on the examples 1-11, when the paint is used and mixed with water, the weight ratio of the water to the materials is 65: 100, and the paint with moderate concentration can be prepared by mixing.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (4)
1. A kyanite-based composite coating is characterized in that: the method comprises the following raw materials: bauxite, kaolin, kyanite, andalusite, chromite, zircon sand, hematite, microcrystalline graphite, sillimanite, 20-60% of kyanite, 10-20% of bauxite, 2-5% of kaolin, 5-60% of zircon sand, 10-50% of chromite, 2-5% of hematite, 2-5% of microcrystalline graphite, 2-5% of andalusite and 2-5% of sillimanite, and the preparation method comprises the following steps: pulverizing the raw materials, weighing the raw materials in proportion, loading into a bucket elevator, unloading into a planetary sand mixer, mixing, stirring, discharging, and packaging.
2. The kyanite-based composite coating according to claim 1, wherein: the crushing particle size of each raw material is 100-250 meshes.
3. The kyanite-based composite coating according to claim 1, wherein: the mixing and stirring time is 60-120 minutes.
4. The kyanite-based composite coating according to claim 1, wherein: when in use, when mixed with water, the weight ratio of water to materials is 65: 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810722423.2A CN108746483B (en) | 2018-07-04 | 2018-07-04 | Sapphire-based composite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810722423.2A CN108746483B (en) | 2018-07-04 | 2018-07-04 | Sapphire-based composite coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108746483A CN108746483A (en) | 2018-11-06 |
| CN108746483B true CN108746483B (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810722423.2A Active CN108746483B (en) | 2018-07-04 | 2018-07-04 | Sapphire-based composite coating |
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| Country | Link |
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| CN (1) | CN108746483B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774520B (en) * | 2020-07-22 | 2021-10-15 | 郑州翔宇铸造材料有限公司 | Lost foam coating for cast iron and preparation method thereof |
| CN112974723B (en) * | 2021-01-28 | 2022-09-23 | 世林（漯河）冶金设备有限公司 | Alcohol-based paint and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642796B (en) * | 2009-08-28 | 2011-09-28 | 深圳市景鼎现代科技有限公司 | Formula and preparation process of alcohol group nanometer composite and surface modified dry powder mold paint |
| EP2788301B1 (en) * | 2011-12-09 | 2023-06-07 | NewSouth Innovations Pty Limited | Percolated mullite and a method of forming same |
| CN105290314A (en) * | 2015-11-02 | 2016-02-03 | 沈阳金安铸造材料有限公司 | Coating for casting |
| CN105665620B (en) * | 2016-04-08 | 2018-03-16 | 宁夏共享模具有限公司 | A kind of preparation method of the water base Flow Coating of 3D printing sand mold |
| CN107866520B (en) * | 2017-11-15 | 2020-04-07 | 共享智能装备有限公司 | Anhydrous water-soluble powder casting coating and preparation method thereof |
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2018
- 2018-07-04 CN CN201810722423.2A patent/CN108746483B/en active Active
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| Publication number | Publication date |
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| CN108746483A (en) | 2018-11-06 |
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