A nanomaterial increases the lifetime of wheel pair treads of electric trains

The lifetime of wheel pair treads is one of the main factors determining turnarounds of electric locomotives and trains. However, scientific literature has not provided an effective technique to improve the endurance of treads. This paper presents the results of bench tests and experimental studies of nanomaterials used to increase the lifetime of wheel pair treads of electric locomotives and trains. The mineralogical composition of a fine dry multicomponent mixture (nanomaterial) is given. It is shown that this nanomaterial modifies the properties of working surfaces and, in particular, reduces the friction coefficient during the directed ion diffusion under contact loads. A comparative analysis of the endurance of wheel pair treats treated with this triboengineering compound and untreated ones is performed. It is proved that the efficiency of application of nanomaterials depends on the type of electric trains. The results of research can be used in railway transport enterprises.

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