1前言我国共有国家铁道5万多公里，昼夜约有280万个火车轮在运行，其中包括不同规格的货车车轮和客车车轮。国内唯一能生产车轮的马鞍山钢铁公司车轮轮箍厂，于1964年7月建成，该厂投产以来，至1993年底已累计生产车轮28种计246．2万吨，年产量达到12．5万吨。其中近90％为货车 1 Introduction China’s total number of national railways more than 50,000 kilometers, day and night about 2.8 million train wheels in operation, including different specifications of the truck wheels and bus wheels. Maanshan Iron and Steel Wheel Wheels Factory, the only one capable of producing wheels in China, was completed in July 1964. Since the plant was put into operation, by the end of 1993, it has produced a total of 2,662,000 tons of 28 kinds of wheels and an annual output of 125,000 tons . Nearly 90% of them are trucks