Black Fused Alumina Powder
Black Fused Alumina Powder
| 色 | Black |
| Color System | Alpha-alumina trigonal system |
| Mohs Hardness | ≥9.0 |
| Melting Temperature(℃) | 2050℃ |
| Refractory Temperature(℃) | 1850℃ |
| 真の密度( g/cm3) | ≥3.50 |
| Expansion coefficient （0-1600℃） | 7-9 |
| 粒子サイズ | Fグリット, Pグリット, Wマイクロパウダー, セグメントサンド, 微粉 |
| アプリケーション | Surface Processing, Beautification Processing, Etching Processing, Pre-treatment Processing, Deburring Processing, Stress Relief Processing |
Product Overview:
Black fused alumina is a highly durable and versatile abrasive with a wide range of applications across industries. Its unique combination of physical and chemical properties makes it suitable for sandblasting, surface preparation, polishing, refractory, and anti-skid flooring applications. Its high durability, low dust generation, versatility, and cost-effectiveness make it ideal for industrial processes.
Advantages:
Black fused alumina has a high hardness rating of 9 on the Mohs hardness scale, making it a suitable material for grinding and polishing hard surfaces. 同時に, the material exhibits excellent toughness, which allows it to withstand high impact and pressure without breaking.
Black Fused Alumina Abrasive sizes:
Refractory materials sizes: 0-1, 1-3, 3-5, 5-8 mm, 100, 200, 325 mesh
Abrasives sizes: 12, 14, 16, 24, 30, 36, 46, 60, 80, 100, 120, 150, 180, 200, 220, 240, 280, 325 mesh.
Micro powders for polishing and grinding: 400, 600, 800, 1000, 1500, 2000, 3000 mesh
Or as per specific requirements
Application：
1.Sandblasting
Black fused alumina is a commonly used abrasive for sandblasting. Its high hardness and toughness make it effective in removing rust, paint, and other surface coatings from metal surfaces. It is also used for surface preparation prior to painting or coating, as it creates a rough surface that promotes adhesion.
2.Surface Treatment
In addition to sandblasting, black fused alumina is also used for surface treatment in various industries. It is used for roughening and cleaning the surfaces of different materials, including metals, セラミックス, and composites. Surface treatment with black corundum improves the adhesion and bonding of subsequent coatings, such as paints and sealants.
3.Polishing and Grinding
Black fused alumina is also used as an abrasive for polishing and grinding applications. Its high hardness and uniform particle size make it effective in achieving a smooth and uniform surface finish on metals, ガラス, and ceramics. It is commonly used in the production of optical lenses, electronic components, and precision parts.
4.Refractory Materials
Black fused alumina is a refractory material with excellent high temperature stability and chemical resistance. It is used in the production of refractory materials such as bricks, キャスタブル, and monolithic refractory materials. These materials are used in the construction of furnaces, kilns, and other high temperature applications.
5.Anti-slip flooring
Black fused alumina is also used to produce anti-slip flooring materials. Its high hardness and durability make it an ideal material for creating anti-slip surfaces in a variety of applications, including industrial floors, stairs, and walkways.
Packing:
- 25kg paper/plastic small bags
- 1.0/1.2/1.25/1.35MT Big Bags
- Small bags inside big bags
- Big bags / small bags on pallet
- In bulk
- According to the customers’ detail requirements
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While both are alumina-based abrasives, Black Fused Alumina is tougher, less friable, and more heat resistant than White Fused Alumina. White Fused Alumina, on the other hand, is purer and has a higher hardness, making it better suited for precision applications and high-quality surface finishes.
白色電融アルミナ (WFA), brown fused alumina (BFA), and black fused alumina (BLFA) are all types of fused alumina, which is a type of abrasive material made by melting alumina (Al2O3) and then solidifying it into blocks or grains.
The main difference between these three types of fused alumina is their color, which is a result of differences in the manufacturing process and the impurities present in the raw materials used.
White fused alumina is made from high-quality alumina powder and is the purest form of fused alumina, with a white color and high hardness. It is commonly used in applications where a high level of purity is required, such as in the production of semiconductor wafers, precision casting, and high-end abrasives.
Brown fused alumina is made from bauxite, iron filings, and anthracite coal, and has a brown color. It has a lower purity than white fused alumina but is tougher and more durable, making it suitable for applications such as grinding and cutting.
Black fused alumina is made from bauxite and iron filings and has a black color. It is less pure than both white and brown fused alumina and is typically used in applications such as sandblasting, polishing, and surface preparation.
To choose the right silicon carbide abrasive, consider factors like the material being worked on, the desired finish, the abrasive life, and the equipment being used. Generally, harder materials require finer grits, while softer materials can be worked with coarser grits.
