Method and apparatus for making, in the absence of air, abrasive materials having a fine and homogeneous crystalline structure.

摘要

The process for producing porosity-free abrasives consists in immersing in a bath of molten abrasive product (5) a cooling block (1) made up of the assembly of a plurality of members (2) forming shallow cavities between them, then withdrawing it and recovering the abrasive product solidified in the cavities, for example by moving the members apart (2). Application to the production of abrasives based on alumina or alumina and zirconia. <IMAGE>