ABRASIVE MELTED GRAINS Russian patent published in 2014 - IPC B24D3/00 B24D99/00

Abstract RU 2523197 C2

FIELD: chemistry.

SUBSTANCE: invention relates to an abrasive instrument, containing melted grains. Abrasive grains have a chemical composition in wt % based on oxides: Al₂O₃ remaining part to 100%, ZrO₂+HfO₂ 16-24%, MgO in such amount that a weight ratio (ZrO₂+HfO₂)/MgO constitutes from 25 to 65, oxides different from Al₂O₃, ZrO₂, HfO₂ and MgO 0-2%.

EFFECT: invention makes it possible to obtain grains with improved properties with a lower content of zirconium dioxide, and therefore reduce the production cost.

12 cl, 1 tbl

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RU 2 523 197 C2

Authors

Marlen Samjuehl'

Petin'I Sil'Ven

Dates

2014-07-20—Published

2009-10-09—Filed