A CBN
grinding wheel of a low-temperature
ceramic bond consists of a bond, auxiliary materials, an
abrasive layer and a
transition layer. The components and the proportion of the bond are 48-60% of SiO2, 25-37% of Al2O3, 5-10% of Na2O and 3-7% of Li2O; the components and the proportion of the
abrasive layer are 23-40% of CBN and 23-40% of SiC, 20.3-29.8% of the bond, 0.1-0.3% of
dextrin powder and 0.1-0.2% of walnut
powder; and the components and the proportion of the
transition layer are 64-76% of the SiC, 21.9-32.9% of the bond and 0.1-0.2% of the
dextrin powder. By adopting the technical processes of mixing materials, molding a blank of the
abrasive layer by compression,
sintering the blank of the abrasive layer, configuring, determining and
processing the dimension of matrix bond, bonding the abrasive layer with the matrix, carrying out
rotation test, trimming the external circle and end face of the abrasive layer, inspecting the abrasive layer of the
grinding wheel, carrying out dynamic balancing,
processing the appearance, and the like, and by reducing the firing temperature of the
ceramic bond, the problem that burning loss happens easily due to oxidation of the abrasive is solved, and the strength of the product is improved.