The bulk density is 1.53~ 1.99g/cm3. The bulk density of abrasives is related to factors such as particle size, particle composition, variety and particle shape. Generally speaking, the bulk density of coarse-grained abrasives is higher than that of fine-grained abrasives, and the bulk density of mixed-particle abrasives is higher than that of single-particle abrasives.
The particle density is 3.95~4.0/cm3, and the particle density of abrasive refers to the mass of abrasive contained in unit volume (excluding the volume with pores).
Abrasive abrasive brown corundum: commonly known as natural emery. Brown corundum is a brown artificial corundum made of bauxite, coke (or anthracite) and iron filings by melting and reducing in an electric furnace above 2000 degrees, hence the name. The main chemical composition of brown corundum is AL2O3, with a content of 94.5%-97%, and a small amount of iron, silicon and titanium. After grinding and molding by a autogenous mill, iron is removed by magnetic separation and screened into various particle sizes. Compact texture, high hardness and spherical particles. Suitable for manufacturing ceramics, resin high consolidation abrasives, grinding, polishing, sandblasting, precision casting, etc. It can also be used to manufacture advanced refractories. Grades of Brown Corundum \ Grade I, Grade II and Grade III Brown Corundum is mainly composed of alumina, and grades are distinguished by aluminum content. The lower the aluminum content, the lower the hardness.