What is the difference between rough grinding, fine grinding and fine polishing? What type of white fused alumina is used for each?
Specific operation steps or process flow of white fused alumina in optical glass polishing
Coarse grinding: Use coarse-grained white alumina oxide powder to remove most of the material on the surface of optical glass. Common models are 150#, 180#, 220#, 240#, 280#, 320#
Fine grinding: Use finer-grained white alumina oxide powder for fine grinding to remove surface flaws and scratches. Common models are 400#, 500#, 600#
Fine polishing: Use finer-grained white corundum powder for polishing to improve the optical properties and light transmittance of glass. Common models are white corundum ultrafine powder 2000#, 3000#, 4000#, 6000#, 8000#, 10000#
