车轴、輪箍、鋼轨中的裂纹问题,无论是从制造者对於成品的检验上来看,或是从使用者在检修或保养上来看,都是必须加以特别注意的问题;因为这问题直接影响着铁路运输事业中行车的安全。本文总结了一部分实际工作的经验,并试图加以理论上的解释,提出来与读者们共同研究,错误之处尚希指正。我们的车轴、輪箍、鋼轨的化学成分如[表一]所示。 Cracks in axles, tires, and rails are issues that require special attention, both from the manufacturer’s inspection of the finished product, or from the point of view of service or maintenance by the user, as the problem is directly Affect the safety of driving in railway transportation. This article summarizes a part of the actual work experience, and try to be a theoretical explanation, put forward to study with the readers, the error is still correct. The chemical composition of our axles, tires and rails is shown in [Table 1].