The invention discloses a
polyurethane grinding wheel and a production process thereof. According to the
polyurethane grinding wheel,
abrasive materials in raw materials are carborundum, and
polyurethane is adopted as a binding agent; and the polyurethane comprises a polyurethane material A and a polyurethane material B. The production process includes the steps that material mixing is firstly carried out, wherein the carborundum and the polyurethane material A are put into a material mixing
machine to be mixed, and the polyurethane material B and auxiliary materials are sequentially added to be evenly mixed; then a mixed material is screened to be placed into a die to be subject to pressing molding; and finally, a
green body is sintered for 8 h to 24 h at the temperature
ranging from 125 DEG C to 165 DEG C, and is cooled to be discharged out of a furnace. According to the production process, the polyurethane serves as the binding agent to produce the
grinding wheel, the auxiliary materials in an existing
grinding wheel recipe can be applied to the method according to the production requirement, and the manufactured
grinding wheel has the beneficial effects that the
sintering temperature is low, saved
energy resources are many,
pollution is avoided, the molding density is large, the
grinding wheel balance is good, the rotating speed is high, the grinding performance is high, and the production period is short, and the quality of products in the
machine tool industry, the bearing industry, the bent axle industry, the engine industry and the steel rolling industry is improved.