SILICON CARBIDE SAND FOR FRANKFURT STONE ABRASIVE PAD
Grain Size SpecificationsThe common grain sizes of silicon carbide sand used for Frankfurt stone grinding pads include 24#, 36#, 46#, 60#, 80#, 120#, 180#, 240#, 320#, 400#, 600#, 800#, 1000#, 1500#, etc.
Advantages
High hardness and wear resistance: The Mohs hardness of silicon carbide is around 9.5, second only to diamond, allowing for efficient cutting of stone surfaces while its own wear is minimal, which reduces the frequency of replacing grinding pads, extends their lifespan, and lowers costs.
Excellent sharpness: The crystalline structure of silicon carbide gives it sharp edges, which can quickly remove irregularities from stone surfaces during the grinding process, enhancing coarse grinding efficiency and reducing processing time.
Good thermal conductivity: It has excellent thermal conductivity, effectively dispersing the heat generated during grinding, preventing the stone from cracking or burning due to localized high temperatures.
Chemical stability: It is resistant to acid and alkali corrosion; even when in contact with water or coolants during grinding, it does not react, ensuring a pollution-free grinding process that maintains the stone’s pure color, especially suitable for stones with high color requirements.
Uniform particle distribution: Through precise grading, silicon carbide sand can achieve high grain size consistency, resulting in uniformly scratched surfaces of the stone, laying a smooth foundation for subsequent polishing processes and reducing rework needs.
Application ScenariosCoarse grinding stage: Coarser silicon carbide sand with grain sizes around 24#-80# can be used for quickly leveling stone surfaces and removing most excess material, preparing for subsequent fine grinding.Medium and fine grinding stages: Silicon carbide sand of sizes 80#-320# can be used for further refining the stone surface, decreasing surface roughness, and improving the smoothness and flatness of the stone surface.
Fine grinding and pre-polishing stage: Fine-grained silicon carbide sands above 320#, such as 400#, 600#, 800#, and 1000#, can be used for fine grinding and preparing for polishing, making the stone surface smoother and more delicate, approaching the final polishing effect.
