Low-melting high-strength ceramic bond, preparation method thereof, superhard abrasive grinding wheel and manufacturing method of superhard abrasive grinding wheel

The invention discloses a low-melting high-strength ceramic bond and a preparation method thereof, a superhard abrasive grinding wheel and a manufacturing method of the superhard abrasive grinding wheel, Al2O3-B2O3-Si2O3 is used as a framework material, and low-melting-assistant fluoride YF3, alkali oxides Na2O, Li2O and MgO, Y2O3 and ZrO2 are prepared to form the low-melting high-strength ceramic bond, so that the superhard abrasive grinding wheel can be used for grinding the superhard abrasive grinding wheel. The low-melting-point high-strength ceramic bond can be suitable for different-mesh diamond (RD) formulas and cubic-phase boron nitride (CBN), the firing temperature ranges from 660 DEG C to 730 DEG C, the melting point of the ceramic microcrystalline glass bond is effectively reduced, and the situations that the firing temperature is too high (higher than 750 DEG C), so that a diamond abrasive is modified, and the diamond abrasive is thermally damaged are avoided; and meanwhile, the grinding tool keep