The particle size, or specifications, of black silicon carbide micropowder determines the grinding quality.
Practical experience generally shows that finer particle sizes result in higher dimensional accuracy and surface finish. Micro powders with larger particle size numbers are often used for coarse grinding processes with large machining allowances.
Black silicon carbide micropowder plays an important role in the steelmaking industry. Before use, it must be deoxidized to reduce production costs.
Relationship between particle size and mass of black silicon carbide micropowder:
1. Small-sized black silicon carbide micropowder is suitable for micro-cutting grinding processes, achieving surface finishes between Δ12 and Δ14.
2. For different precision requirements, there is a maximum abrasive grit size for cutting capability. However, this does not mean that all abrasives of that selected grit size have the highest cutting capability. It depends on the quantity of basic particles in each batch of abrasives of the same grit size.
3. Both coarse and fine particles are detrimental to grinding quality. Coarse particles are crushed quickly, reducing grinding efficiency, while fine particles have less cutting action.
Deoxidation steps for black silicon carbide micropowder:
1. Dissolution and homogenization of silicon carbide deoxidizer concentration in the melt.
2. Nucleation and growth of deoxidation products from black silicon carbide micropowder.
3. Removal of deoxidation products from black silicon carbide micropowder.
4. After the black silicon carbide micropowder deoxidizer is added to the ladle (furnace), its dissolution and homogenization of concentration in the melt require a certain amount of time, which is one of the important factors affecting the deoxidation speed and effect.
