http://www.mayjoy-abrasives.co....m/brown-fused-alumin fused alumina - BFA usually has three kinds of crushed ways, they are Roll milling, Ball milling and Barmac. Roller milling: grits are angular, sharp; Ball milling: grits are roundness, with high bulk density, durable; Barmac: grits are more roundness, higher bulk density, more durable, so Barmac production cost and selling price is high too.
Brown fused alumina oxide product has the characteristics of high hardness, high purity, impact resistance, oxidation resistance, corrosion resistance, high temperature resistance, no pulverization, no bursting, and stable chemical properties. They are important raw materials in the refractory industry and are widely used in iron trench castables, refractory ramming materials, aggregates for filling castables, and high-quality raw materials for shrouds, slides, ladles and various corundum products. It has high strength, excellent thermal conductivity and good oxidation resistance, and does not deform at high temperatures.It is generally used as aggregate and fine powder in refractoryable br
