The special grinding wheel for rail is a tool for dressing and grinding railway rails. The rail is an important part of the railway, and its quality and flatness are very important to the safety and efficiency of the train. In the long-term use of the rail, due to the heavy pressure and friction of the train, various defects and wear will occur, and regular maintenance and maintenance are required. The special grinding wheel for rail is developed to meet this demand.

Rail-specific grinding wheels are usually composed of abrasive particles, binders and reinforcing materials. The abrasive particles are usually made of materials with high hardness, such as alumina or silicon carbide, which can effectively cut and grind the surface of the rail. The bonding agent acts to fix the abrasive particles so that they can be evenly distributed on the surface of the grinding wheel. Reinforcement materials are used to improve the strength and wear resistance of the grinding wheel. Common reinforcement materials include glass fiber and metal wire.

The choice of special grinding wheel for rail should be determined according to the different materials of rail, grinding requirements and use environment. Generally speaking, the special grinding wheel for rail is divided into two types: dressing grinding wheel and grinding wheel. The dressing grinding wheel is mainly used to dress defects such as unevenness and displacement on the surface of the rail. Common dressing grinding wheels include flat grinding wheels and arc grinding wheels. Grinding wheels are mainly used to grind away the wear layer on the surface of the rail and improve the flatness of the rail. Common grinding wheels include silicon carbide grinding wheels and alumina grinding wheels.