What is aluminum oxide abrasives?
Aluminum oxide abrasives is artificial abrasives with Al2o3 as its main content.It includes white aluminum oxide abrasive,brown aluminum oxide abrasive and pink aluminum oxide and so on.Because aluminum oxide abrasives have advantages of high hardness,good wear resistance and good cutting ability,it is used widely in various industries.Of course,different aluminum oxide abrasive has its own features and used for different fields.
White aluminum oxide abrasives
White aluminum oxide abrasive is made from high purity aluminum oxide via smelt under high temperature.It appears white powder,with Al2O3 more than 99.4% and Mohs hardness 9.0.White aluminum oxide abrasives is suitable for grinding aluminum alloy, stainless steel,metal etc
Brown aluminum oxide abrasives
Brown aluminum oxide abrasives is also caleed brown fused alumina,brown corundum,brown emery sand etc.Brown aluminum oxide is made mainly from bauxite.It appears brown powder,main chemical is Al2O3 too,which is about 95%.Brown aluminum oxide has lower hardness than white aluminum oxide,but has better toughness.Besides,brown aluminum oxide costs lower and it mainly is used for grinding and polishing normal metal etc.
Pink aluminum oxide abrasives
Pink aluminum oxide abrasives looks pink,very beautiful.It contains Al2O3 more than 98% and Cr2O3 0.2-2%.Because it posseses high strength,toughness and bulk density,the abrasive tools made from it has better cutting ability.
Besides, there are black aluminum oxide abrasives,zirconia aluminum oxide abrasives,single crystal aluminum oxide abrasives,ceramic aluminum oxide abrasives etc
In a summary,aluminum oxide abrasives are playing an important role is industrial production because of its perfect physical properties and chemical.