Logitech Calcined Aluminium Oxide Powders are produced using a unique process which grades the particles in size and shape more closely than is possible by normal means. The particles produced by the process are flat and tend to lie parallel with the surface being worked; the working pressure is thus more evenly spread. Breakdown of calcined aluminium oxide is reduced and “abrasiveness” is retained for a longer period. The close grading of Logitech Calcined Aluminium Oxide Powders provides the optimum combination of cutting rate and surface finish.
The following advantages can be obtained using Logitech Calcined Aluminium Oxide Powders
Faster Lapping & Polishing - Experience has shown that calcined aluminium powder can usually reduce lapping and polishing times by at least 20% and are particularly effective on hard materials, e.g. ceramics, silicon and hardened steel (other abrasives have a tendency to be crushed and break down too quickly). In some instances 50% reductions in time have been achieved over conventional powders because a larger particle size may be used without loss of surface finish.
Reduction in Concentration of Abrasive Slurry - Normally the concentration of abrasive in a slurry may be reduced by at least 25% when changing to Logitech Calcined Aluminium Oxide Abrasive Powder from regular alumina abrasives.
Lapping Pressure and Plate Speed can be increased - Pressure and plate speed used for lapping can, in most cases, be increased by up to 10% after changing to Logitech Calcined Aluminium Oxide Abrasive Powder from regular alumina abrasives, thus reducing lapping times.
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