FIELD: process engineering.
SUBSTANCE: invention relates to abrasive particles and materials to be used for sand blast surface cleaning and finishing of the wide range of materials and surfaces. Formed abrasive particles containing alpha-alumina are shaped to irregular circle in cross-section made along lengthwise axis of said particles. Besides, they feature mean factor of roundness making about 15% and 0%. Invention covers also the abrasive material containing aforesaid particles.
EFFECT: higher quality and rate of band grinding.
15 cl, 3 tbl, 9 dwg, 3 ex
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