Novel high-speed rail turnout steel rail grinding wheel and preparation method thereof

The invention discloses a novel high-speed rail turnout steel rail grinding wheel and a preparation method thereof. The grinding wheel is prepared from, by weight, 15%-35% of mixed resin, 15%-40% of modified fused alumina zirconia, 15%-50% of cubic silicon carbide, 1%-5% of flake graphite, 0.5%-3% of antimony sulfide, 2%-6% of petroleum coke, 4%-15% of zinc oxide hollow balls, 2%-8% of kieselguhr, 0.5%-4% of magnesium oxide powder, 1%-4% of calcium carbonate powder, 2%-5% of fluorite powder and 4%-8% of red copper powder. Compared with an existing common grinding wheel, the grinding wheel for grinding the turnout steel rail of the high-speed rail has the advantages that the surface of a ground workpiece has no bluing phenomenon, the surface roughness of the workpiece is low, the grinding efficiency is improved by 14.15%, and the abrasion ratio can be improved by 10.39 times at most. 本发明公开了一种新型高铁道岔钢轨打磨砂轮及其制备方法，砂轮配方按重量百分比如下：混合树脂(15～35)％、改性锆刚玉(15～40)％、立方碳化硅(15～50)％、片状石墨(1～5)％、硫化锑(0.5～3)％、石油焦炭(2～6)％、氧化锌空心球(4～15)％