Silicon carbide high-speed binder grinding wheel

• Main Authors: WANG AIMIN, YE GUIYING, ZHAN SHIXIN, WANG TONGZHOU, YANG CHAOBIN, ZHANG JIYONG, ZHOU YAN
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2010
• Subjects: GRINDING; PERFORMING OPERATIONS; POLISHING; TOOLS FOR GRINDING, BUFFING, OR SHARPENING; TRANSPORTING

The invention provides a silicon carbide high-speed binder grinding wheel, which comprises a grinding wheel binder and an abrasive, wherein the abrasive is black silicon carbide (C) or green silicon carbide (GC) at least. The grinding wheel is characterized in that the grinding wheel binder is a high-speed binder, and the weight percentages of chemical components of the high-speed binder are: 15 to 23 percent of Al2O3, 58 to 68 percent of SiO2, 3 to 6 percent of K2O, less than 2 percent of Na2O, less than 2 percent of MgO, less than 0.6 percent of CaO, less than 1 percent of Fe2O3 and less than 2 percent of B2O3. The invention changes the type of the binder from a sintered type binder into a semi-fused type binder and particularly introduces low-melting boron glass into the binder, thereby reducing the refractoriness of the binder, improving the strength of the grinding wheel, achieving the aim of raising the linear velocity of the grinding wheel and not causing the silicon carbide grinding wheel to produce b