Brown fused alumina powder has important applications in optical glass polishing. Its unique physical and chemical properties make it an ideal material for optical glass polishing. The following is a detailed analysis of the application of brown corundum powder in optical glass polishing:
1. Characteristics of brown fused alumina powder
1. High hardness: Brown fused alumina powder has a very high hardness, and its Mohs hardness can reach level 9, which enables it to quickly and effectively remove surface defects such as scratches and oxides when it comes into contact with the surface of the workpiece.
2. High toughness: Brown fused alumina powder is not only hard, but also tough, and can withstand greater pressure without being easily broken. This characteristic enables it to maintain sharpness for a long time during the polishing process and improve polishing efficiency.
3. Uniform particle size: Brown corundum powder has been processed by precise crushing, screening and other processes, and its particle size is uniform, which can meet the polishing requirements of different particle size requirements. This helps to achieve uniform grinding and polishing effects during the polishing process.
4. Acid and alkali corrosion resistance: Brown fused alumina powder has stable chemical properties and can resist the erosion of chemical substances such as acids and alkalis. This gives it a unique advantage when processing some workpieces that need to be resistant to acid and alkali corrosion.
5. High temperature resistance: Brown fused alumina powder can withstand high temperature environments and is not prone to thermal deformation or thermal expansion. This makes it have a wide range of application prospects in high temperature polishing processes.
Brown corundum powder
II. Application of brown fused alumina powder in optical glass polishing
1. Good polishing effect: The polishing effect of brown corundum powder is delicate and uniform, which can significantly improve the surface finish and aesthetics of optical glass. At the same time, it can also reduce scratches and burns during the polishing process and improve the quality of the workpiece.
2. Applicable to a variety of polishing methods: Brown corundum powder is suitable for a variety of polishing methods, such as mechanical polishing, chemical polishing, etc. Mechanical polishing mainly uses the surface plasticity of the cutting material to achieve surface smoothness; chemical polishing uses chemical substances to dissolve the concave and convex parts of the material first to make the plane smooth. Brown corundum powder can play an excellent role in these polishing methods.
3. Precautions for polishing with brown fused alumina powder
1. Choose the appropriate particle size: According to the surface condition and polishing requirements of the optical glass, choose the appropriate particle size of brown corundum powder. Too large particle size may lead to poor polishing effect, while too small particle size may increase polishing time and cost.
2. Control polishing pressure and speed: Polishing pressure and speed are important factors affecting the polishing effect. Excessive pressure and too fast speed may cause scratches or burns on the surface of optical glass. Therefore, it is necessary to reasonably control the polishing pressure and speed to obtain the ideal polishing effect.
3. Pay attention to the preparation of polishing liquid: In chemical polishing, the preparation of polishing liquid has an important influence on the polishing effect. The polishing liquid needs to be prepared in a certain proportion and the uniformity and stability of the polishing liquid must be ensured.