What kind of brown alumina density is the standard :
The density of brown corundum is divided into: particle size, bulk density, bulk density, true density, variety, particle shape, particle size composition and other factors are related.
True density refers to the mass of the abrasive contained in a unit volume (excluding the volume with open pores).
The following are some particle size indicators and physical and chemical indicators of brown
1. Brown corundum fine powder: 180 # -0, 200 # -0, 320 # -0.
2. Brown corundum sand: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm.
3. Physical and chemical indicators: CaO, ≤ 0.5%, Al2O3 ≥ 98.5%, magnetic objects ≤ 0.003%, Na2O ≤ 0.5%.
4. Physical and chemical indicators: Na2O≤0.5%, magnetic objects≤0.003%, Al2O3≥99%, CaO, ≤0.4%.
Sometimes the size standard of brown corundum can be processed according to the different needs of customers.