Silicon Carbide Green 64C M14 for Solar Silicon Wafer Slicing
Silicon Carbide Green 64C M14 for solar silicon wafer slicing is a commonly used cutting material in the photovoltaic industry. Wafer slicing is an important process in the production of solar silicon wafers. The quality of silicon carbide powder directly affects the cutting speed, surface roughness of silicon wafers, and thus the yield of silicon wafers.
The Silicon Carbide Green 64C powder suitable for solar silicon wafer wire cutting has the following characteristics:
1. High hardness and cutting force.
Green silicon carbide is the leader in high-hardness abrasives among traditional abrasives. Its Mohs hardness is 9.5 and Rockwell hardness is 80HRC, second only to synthetic diamonds. Although diamond slicing is gradually emerging, green silicon carbide micro powder still has significant advantages in terms of cost.
2. Good high-temperature performance.
Silicon carbide green M14 can still maintain good stability in physical and chemical indicators under high-temperature slicing conditions. And its grinding ability will not be affected at high temperatures. In addition, green silicon carbide powder has strong thermal conductivity and high thermal conductivity. It can transmit the heat generated by cutting to the cutting fluid and the outside to avoid burning the silicon wafer.
3. Appearance characteristics of particles.
Silicon carbide green M14 equals to JIS1200# and F600. The separation process is hydraulic classification, with uniform particle size distribution. The particle range is between 2-20 microns. It is conducive to improving the consistency of slicing. Thus, it can avoid scratches on silicon wafers. In addition, the particle size of green silicon carbide powder should be as regular as possible to improve the surface smoothness of the silicon wafer.
4. Liquidity.
Green silicon carbide powder and cutting fluid can only be attached to the steel wire for cutting after being mixed. Therefore, silicon carbide with good fluidity can be more evenly dispersed in the cutting fluid. Therefore, it can also make the mortar smoothly sprayed onto the steel wire for cutting. Then improves the efficiency of the slicing process.
