METHOD FOR MAKING HIGH POROSITY ABRASIVE TOOL Russian patent published in 2000 - IPC

FIELD: manufacture of abrasive tools, namely high porosity abrasive tools of white fused corundum with ceramic binder. SUBSTANCE: method of making high porosity abrasive tool comprises steps of mixing abrasive grains, ceramic binder, temporary binding material in such a way that it is not necessary to keep predetermined ratio of content and size of blowing agent and abrasive grains; using as blowing agent mixture of perlite sand and fruit kernels with ratio (1:10) -(10:1). EFFECT: reduced cost price of ready tools. 3 ex