Center for Abrasives and Refractories Research & Development C.a.r.r.d. Gmbh

Imerys

Jean-André Alary

David Robert Skuse

Mark Windebank

Thomas Parias

Reiner Kunz

Jarrod Hart

Sebastian Sachse

Maria Christina DiDavide

Richard Tamblyn

Maria Cristina Didavide

A method of grinding a particulate material, comprising grinding said material in a stirred mill in the presence of a grinding media comprising rod-shaped particles, wherein said rod-shaped particles have an aspect ratio of equal to or greater than about 2:1.

Grinding method

The invention relates to an anti-abrasion layer, comprising a mixture of irregular particles of hard material and round particles essentially free of cutting edges embedded in a matrix material and the use thereof for the production of anti-abrasion surfaces on wood materials, decorative paper, or wood fiber sheets printed with patterns for the production of parquet floors, floor laminates, furniture surfaces or work boards and for the production of wear-resistant surface layers on support materials made from metal, glass, ceramics, plastic concrete or other materials.

Anti abrasion layer

A method is provided for manufacturing spherical corundum grains having a bulk density between 1.5 kg/L and 2.5 kg/L, with aluminum oxide being melted in an electric arc furnace with the addition of 0.1 to 1% quartz sand, the melt being poured in a pouring quantity of less than 100 kg/min, and the pouring stream being blown using compressed air at a pressure between 3 to 10 bar.

Spherical corundum particles, based on fused aluminum oxide and a method for producing said particles

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L'Isle sur la Sorgue, France

Jean-André Alary