Breviary Technical Ceramics



 Abrasion Protection Plates

Large numbers of such plates are placed in the way of impacts, glued to a substrate, to protect surfaces against abrasion.
Close tolerances are required here for the individual plates, so that the total tolerance of adjacent plates is kept within reasonable limits.

A typical dimension for such plates is 100 x 100 mm. The plates are manufactured by dry pressing, and are not machined after firing.
According to DIN 40 680-A-m a tolerance of ± 1.8 mm or ± 1.8 % per plate would be permissible.
Using present techniques, the total of length tolerances arising from 10 adjacent plates does not exceed + 2 mm / - 0 mm or + 0.2 % / - 0 %.


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