Alumina ceramic ball, corundum ball

Alumina ceramic ball, corundum ball For the alumina (corundum) abrading ball, there are such lots of merits as, higher density, mechanical strength, well abrasive resistance etc. It is broadly applied to the areas of ceramic production, ball abrasive machine, electronics, aerospace, chemical fertilizer, and chemical industry.

Physical performance Chemical composition Item Unit Technical index Composition Index Bulk density kg/m3 2.9-3.6 AL2O3 70-99% Crushing strength KN/pc 10-15 SiO2 3-17% Hardness Mohs =7-9 MgO 0.5% Abrasion ratio ?/P> 0.03 Fe2O3 0.03% Water sorption % <0.05 CaO 0.2%       Na2O 0.1%       Other Micro quantity