Enhancing the mechanical and functional characteristics of structural spring steel through the advancement of heat treatment technologies

The article discusses the improvement of the technology of heat treatment of springs made of structural spring-spring steel grade 55Si2, used in rolling stock of railway transport. The authors conducted extensive experiments to study the effect of different temperatures and duration of heat treatment on the mechanical properties of springs. During the research, optimal quenching and tempering modes were identified, which significantly improved the strength characteristics, wear resistance and stability of the springs. The results of the work formed the basis of new technological instruction aimed at improving the quality and increasing the yield of usable products, which is important for improving the reliability of freight wagons operation.

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