日本川崎重工业公司开发了一种用新材料——低合金铸铁(FCM)制作的铁路车辆用制动圆盘。目前,对原有线路的运行速度由120km/h提高到160km/h的要求已越来越迫切。为了实现上述目标,在提高制动圆盘强度的同时,更期待着寿命长的圆盘材料的问世。从制动圆盘的良好滑动性来看,原有线路上运行的铁路车辆用制动圆盘主要是使用普通铸 Kawasaki Heavy Industries Ltd. has developed a brake disc for railway vehicles made of a new material, low alloy cast iron (FCM). At present, the requirement of increasing the running speed of the original line from 120km / h to 160km / h has become more and more urgent. In order to achieve the above-mentioned goal, the strength of the brake disc is increased, and the development of a long-life disc material is also expected. From the good sliding disc brake point of view, the original line running on the railway vehicle brake discs are mainly ordinary cast