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铁道车辆的高速化,提高铸铁闸瓦的摩擦性能,尤其是600m制动距离内停车,是提高制动性能重要的研究课题之一。从材质方面看,多使用合成闸瓦和烧结闸瓦,但从对车辆踏面的冲击性来看有些问题须待解决。现在从有长期使用效果的普通铸铁闸瓦性质来看,它不是满足运行特性的闸瓦。因此,尚未研究出高速车辆用(速度超过110~120km/h)、普通车辆用(磨耗低、寿命长)、高负载用(机车等)的闸瓦,即符合不同车辆使用特性的闸瓦。现正在为适应
The high-speed railway vehicles to improve the friction performance of cast iron brake shoe, especially within 600m braking distance parking is one of the important research topics to improve braking performance. From the material point of view, the use of synthetic brake shoes and brake more, but from the impact of the vehicle tread point of view some problems to be solved. Now from the long-term use of ordinary cast iron brake shoe properties, it is not to meet the operational characteristics of the brake shoe. Therefore, brake shoes for high-speed vehicles (speed exceeding 110 to 120 km / h), ordinary vehicles (low wear, long service life), and high load (locomotives, etc.) have not yet been developed. Now is to adapt