Is 2000#, 2500#, or 3000# green silicon carbide for optical glass grinding available?
Green silicon carbide (GC) micropowder (such as 2000#, 2500#, and 3000#) used in optical glass grinding
Below is a detailed description of these specifications and application recommendations:
1. Green Silicon Carbide Micropowder Characteristics
Material Advantages: Green silicon carbide has high hardness (Mohs 9.2), moderate brittleness, and strong cutting force, making it suitable for precision machining of hard and brittle materials such as glass and crystal.
Color and Purity: The green color comes from high-purity silicon carbide (SiC ≥ 99%), which is low in impurities and avoids scratching the workpiece surface.
Applications in Optical Glass Processing
Process Flow:
Rough Grinding (W40-W10) → Semi-Fine Grinding (2000#) → Fine Grinding (2500#) → Super-Fine Grinding (3000#) → Polishing (CeO₂ or SiO₂ Sol).
Purpose:
2000#: Removes deep scratches from previous processes and achieves a uniform surface.
2500#/3000#: Further reduces surface roughness (Ra can reach 0.1-0.05μm), laying the foundation for polishing.
