Working fluid for brittle material and working fluid for hard material

摘要: Provided is a water-containing working fluid for brittle material and hard material, which comprising (A) water, (B) water-soluble polymeric compound having an oxygen-containing group number average molecular weight of 6,000 to 3,000,000, (C) nonionic surfactant clouding point 10 70˚C in 1% by mass aqueous solution. In loose-abrasive grain method, the can sufficiently supply slurry just before processing has excellent abrasive dispersion stability also properties washing dispersing scraps, method using fixed-abrasive wire saw, rarely detaches fixed grains scraps.