在过去的三十年里,非金属磨耗件在铁路运输的应用中有了很大的增长和发展,尤其是在机车上,在公共交通的其他领域也越来越明显。特别是热塑性工程塑料的应用已有了明显增长。铁道机车车辆使用的多种备件,目前是用合成树脂生产而不再使用金属。但是,在选择工程塑料来代替其他材料制作备件时,其他一些因素需要加以考虑。每一种塑性材料在其特定使用中都具有其独特的性能。目前,越来越多品种的热塑性工程塑料可供应用,每一种都具有它自身独特 Over the past three decades, non-metallic wear parts have seen tremendous growth and development in the application of rail transport, especially on locomotives, and have become increasingly apparent in other areas of public transport. In particular, the application of thermoplastic engineering plastics has been significantly increased. A variety of spare parts used in railway rolling stock are currently produced from synthetic resins and no longer use metal. However, there are other factors that need to be taken into account when selecting the engineering plastic to make spare parts instead of other materials. Each plastic material has its unique properties in its specific use. At present, more and more varieties of thermoplastic engineering plastics are available, each with its own unique