ABRASIVE GRIT WITH HIGH ALUMINA CONTENT GRAIN IN PARTICULAR FOR APPLICATION IN APPLIED AND SINTERED ABRASIVES FOR EXAMPLE IN SCARFING GRINDERS FOR SLABS OF STEEL ALLOYS

摘要

The invention relates to an abrasive grit essentially comprising sintered alumina, characterised in comprising more than 96 % by weight of alumina, between 0.1 and 3 % by weight of titanium oxide and between 0.1 and 3 % by weight of manganese oxide, the sum of titanium oxide and manganese oxide remaining less than 4 % by weight. The content by weight of titanium oxide and/or manganese oxide is preferably more than or equal to 0.5 %, also the content by weight of titanium oxide and/or manganese oxide is less than or equal to 1.3 %.