Application of brown aluminum oxide in surface treatment
Brown aluminum oxide, also known as emery sand, is a kind of artificial corundum. Its main component is aluminum oxide (Al₂O₃), and its content is usually between 95% and 97%.
The application of brown aluminum oxide in surface treatment is mainly reflected in the following aspects:
1. Sandblasting
Remove surface dirt
By spraying brown aluminum oxide particles at high speed, impurities, oxides, and rust on the surface of metal, wood, stone, etc. can be effectively removed, and the original cleanliness of the substrate can be restored. It is suitable for metal pretreatment and rust removal.
Increase surface roughness
After sandblasting, the surface roughness is improved, the adhesion of the coating material is enhanced, and the risk of coating shedding is reduced; at the same time, the lubrication conditions are improved, and mechanical friction and noise are reduced.
Beautify the surface effect
The uniform roughness enhances the texture of the product and is suitable for the aesthetic treatment of metal products, glass, ceramics, etc.
2. Grinding and polishing
Improve the finish
Use its sharp particles to remove scratches and oxide layers on the surface of metal, ceramics, glass, etc., making the surface smoother and brighter. Uniform polishing
Fine particles act evenly on the surface to avoid local over-polishing and ensure consistent finish and brightness.
Customized processing
Surface patterns or textures can be made under specific processes to increase product added value.
3. Cutting and cleaning
Material cutting
High hardness and density make it suitable for high-pressure water cutting technology, which is environmentally friendly and has high cutting accuracy. It can be used for cutting metal, stone, etc..
Deburring and cleaning
Remove metal burrs and burrs to improve the surface quality of workpieces, especially for precision machined parts.
4. Abrasive tool manufacturing
Grinding wheel and sandpaper
As the raw material of abrasive tools such as grinding wheels and sandpaper, it is widely used in mechanical processing and grinding to meet different precision requirements.
Special abrasive tools
Suitable for grinding difficult-to-process materials such as high-temperature alloys and titanium alloys, with stable performance and high efficiency.
5. Other related applications
Refractory materials
Used in the manufacture of refractory bricks, castables, etc., with excellent high temperature resistance. Environmental advantages
Low dust, reusable, reducing production costs, waste can be recycled as cement additives.
The above applications cover multiple links such as surface cleaning, pretreatment, function enhancement and subsequent processing, reflecting the versatility and importance of brown aluminum oxide in industrial surface treatment.