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为了实现快速列车的安全性和必需的制动有效性,必须要有适用的机车车辆运行和停车的控制系统。美国、俄罗斯,特别是英国等国家列车运行的长期经验在这方面有了长足的进步。这些国家大多数的客车和货车都安装了盘式制动装置。所以对准许用于制造盘式制动装置闸片的摩擦材料进行评估是合适的。此类制动闸片首先是用于最高速度为160 km/h及更高速度的快速旅客列车的。各家厂商用聚合材料和金属陶瓷材料制造盘式制动闸片也有很大的兴趣。所进行的无石棉合成聚合物车辆制动闸片的台架试验表明,这种闸片具有很好的摩擦性能、耐磨性能以及运行的安全性,所以建议在运行速度为160 km/h以下的旅客列车上进行运行试验。根据台架试验的结果,金属陶瓷制动闸片也能符合对该种产品提出的要求,包括摩擦因数、耐磨性和阻燃性、在运行速度达220 km/h的情况下与钢制制动盘摩擦表面的相互作用性。因此,建议在运行速度达220 km/h的情况下将这种闸片装在旅客列车上进行运行试验。
In order to achieve the safety of the rapid trains and the necessary braking effectiveness, suitable control systems for rolling stock operation and parking must be available. The long-term experience of train operation in the United States, Russia, especially the United Kingdom and other countries has made great strides in this regard. Most of the buses and trucks in these countries have disc brakes installed. It is therefore appropriate to evaluate the friction material that is used to make disc brake pads. Such brake pads are first used for fast passenger trains with a maximum speed of 160 km / h and above. Various manufacturers are also interested in disc brake pads made of polymeric materials and cermets. The bench test of the asbestos-free synthetic polymer vehicle brake pad showed that this pad has good frictional properties, wear resistance and operational safety. Therefore, it is recommended to operate at speeds below 160 km / h Passenger train running test. According to the results of the bench test, the cermet brake pads also meet the requirements for this product, including the friction factor, wear resistance and flame retardance, at a speed of 220 km / h and steel Disc brake frictional surface interaction. Therefore, it is recommended that this brake pad be installed on passenger trains for running tests at speeds up to 220 km / h.