1.前言在铁道车辆向高速化发展又要节省经费的情况下,闸瓦应具有较好的摩擦性能和较低的磨耗率。因此,研制了高磷低合金铸铁闸瓦,主要考虑此种铸铁添加磷元素后生成的斯氏体(Fe-C-P三元共晶),具有所要求的特性,能供实际使用。此外,也对国铁内外试制、使用的数种闸瓦进行了调研,得出了几点看法。 1. Foreword In the case of railway vehicles to speed up the development but also to save money, the brake shoe should have better friction performance and lower wear rate. Therefore, a high phosphorous low alloy cast iron brake shoe was developed, mainly considering the Fe-C-P ternary eutectic formed by adding phosphorus element to the cast iron, and has the required characteristics for practical use. In addition, we also conducted several investigations on the trial manufacture and use of several types of brake shoes both inside and outside the country and obtained several observations.