EINE SCHLEIF- UND/ODER POLIERSCHEIBE MIT MEHREREN ZONEN

摘要

The invention relates to grinding/polishing sheet, which comprises 2 or more annular grinding/polishing zones ( 1-5 ) separated by intermediate annular distancing zones ( 6 ). One or more of the grinding polishing zones ( 1-5 ) comprises one or more non-continuous areas, that are part of an annular structure forming channels ( 8 ) in radial direction. The grinding/polishing sheet can be placed on a rotatable grinding/polishing disc for manual, automatic or semiautomatic preparations of materialographic samples. The invention also relates to a method for preparations of materialographic samples.