ABRASIVE MASS FOR MANUFACTURE OF POLISHING TOOL Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: abrasive mass contains diamond, phenol-formaldehyde resin, tin, copper, high-melting point zirconium compound and solid lubricant. Volumetric content of powdered tin exceeds content of powdered copper by at least two times. Hexagonal boron nitride is introduced as solid lubricant. Mass components are taken in the following ratio, % by weight: phenol-formaldehyde resin 17-32; tin 22-33; copper 10-15; hexagonal boron nitride 1-10; high-melting point zirconium compound 3-7; diamond the balance. Abrasive mass may contain stabilized zirconium dioxide as high-melting point compound. EFFECT: increased efficiency and wider operational capabilities. 2 cl, 2 tbl