Method for producing abrasive particles
AssigneeTyrolit Schleifmittelwerke Swarovski K.G.
InventorMartin Hirschmann
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Abstract
A method for producing abrasive particles includes preparing a starting mixture containing at least aluminium hydroxide, which mixture can be converted at least into aluminium oxide by means of heat treatment; extruding the starting mixture to form an extrudate; separating the extrudate into intermediate particles; and heat-treating the intermediate particles. The intermediate particles are converted into abrasive particles that contain aluminium oxide, and the extrudate and/or the intermediate particles is/are subjected to an input of energy that is asymmetrical with respect to the geometry of the extrudate and/or the intermediate particles.
Claims23
A method of producing abrasive particles, the method comprising:
- providing a starting mixture containing aluminum hydroxide convertible into at least aluminum oxide by heat treatment,
- extruding the starting mixture to form an extrudate,
- separating the extrudate into intermediate particles, and
- heat-treating the intermediate particles, wherein the intermediate particles are converted into abrasive particles containing aluminum oxide,
- wherein at least one of the extrudate and the intermediate particles is subjected to an energy input asymmetric with respect to a geometry of the at least one of the extrudate and the intermediate particles.
Dependencies are inferred from the claim text.