COMPOSITIONAL FERROABRASIVE POWDER AND METHOD FOR OBTAINING SAME Russian patent published in 2009 - IPC C09C1/68 C09K3/14 

FIELD: chemistry.

SUBSTANCE: making of compositional ferroabrasive powder includes mixing of the wet ferromagnetic powder component (iron powder) with dried at temperature 80-120°C adhesive structure-forming component - powder of nanocrystall aluminium hydroxide γ-AlOOH. Then abrasive powder component (diamond powder) and binding component are added. The mixture is agitated up to obtaining of homogenous structure and heated up to temperature of composition dehydratation - 290-350°C. Ferroabarsive compositional powder with desired particle size is formed by its rubbing through corresponding calibrated sieves. Ferroabrasive composite powder components have the following volume ratio: ferromagnetic component - 30-65%, adhesive -forming component - 30-40%, abrasive component up to 15%, binding component - the rest.

EFFECT: quality improvement of processed surfaces alongside with increase of material removal intensity, increase of abrasive processing speed, decrease of the working zone temperature.

7 cl, 1 tbl, 1 ex