论文部分内容阅读
铸铁闸瓦的摩擦性能在周围环境温度急剧下降、大风雪和暴雨条件下变化不大。因此,这种闸瓦不久仍将在机车和动车上使用。而在非动车上已决定只采用合成闸瓦,拟在现行五年计划中所有货车均装用合成闸瓦。铸铁闸瓦最重要的运用指标是它的摩擦性能和耐磨性。长期运用经验表明,磷对这些指标影响最大。车辆用铸铁闸瓦是根据苏联国家标准ГOCT6921—74的要求浇铸的,其含磷量(按重量计)不超过0.5％。苏联国
The frictional properties of cast iron brake shoes in the ambient temperature dropped sharply, snow and heavy rain conditions little change. Therefore, this type of brake shoe will still be used on locomotives and motorhoms soon. In the case of non-motor vehicles, it has been decided to use only synthetic brake shoes. It is proposed that synthetic brake shoes be installed on all trucks in the current five-year plan. Cast iron brake shoe is the most important indicator of its friction performance and wear resistance. Long-term experience shows that phosphorus has the greatest impact on these indicators. The cast iron brake shoe for vehicles is cast according to the requirements of the national standard ГOCT6921-74 of the Soviet Union, and its phosphorus content (by weight) does not exceed 0.5%. Soviet Union