论述了世界各国用硬质合金强化机车车辆轮对及其它零件以提高其使用寿命所进行的研究 ,介绍了用该法强化零件的试验和经验以及试验研究结果。试验证明 ,用硬质合金强化轮对和其它零件可以提高其耐磨性几倍至数十倍 ,并可制造出几乎不会磨损和不要更换的零件 The research on strengthening the service life of locomotive wheels and other parts of locomotives with hard alloy in various countries in the world is introduced. The experiments and experience of using the method to reinforce the parts and the results of the experimental research are introduced. Tests have shown that the use of carbide wheel alignment and other parts can improve its wear resistance of several times to several times, and can produce almost no wear and do not replace the parts