Study into the process of defective railtrack arc-hardfacing

Автори

  • Yordan Stefanov Denev Department of Naval Architecture and Marine Engineering, Technical University of Varna http://orcid.org/0000-0001-7124-1600
  • Aylin Rafetova Department of Naval Architecture and Marine Engineering, Technical University of Varna
  • Plamen Dichev Department of Naval Architecture and Marine Engineering, Technical University of Varna

DOI:

https://doi.org/10.29114/ajtuv.vol7.iss1.281

Ключови думи:

railway, deep water, towing tank, carriadge, arc deposition, microstructure

Абстракт

The paper focuses exclusively on the manual arc hardfaced layers of railtrack repairing. The study is conducted in two stages- structural analysis of layers and mechanical characteristic(hardness) study. Two types of technologies for defective areas rebuilding are developed. The first one is hardfacing without a buffer layer, and the second one is with a buffer layer. The process is carried out using electrodes particularly appropriate for this purpose, namely OK 83.28 and OK 67.45, and is designed to achieve the original hardness of the railtrack. All in all, the desired hardness value and magnitude can be achieved by hardfacing the defective areas without a buffer layer, and with the use of OK 63.28 electrodes.

Изтегляния

Данни за теглене още не са налични.

References

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Публикуван

2023-06-30

How to Cite

Denev, Y. S., Rafetova, A., & Dichev, P. (2023). Study into the process of defective railtrack arc-hardfacing. ГОДИШНИК НА ТЕХНИЧЕСКИ УНИВЕРСИТЕТ - ВАРНА, 7(1), 33–43. https://doi.org/10.29114/ajtuv.vol7.iss1.281

Брой

Раздел (Секция)

МЕХАНИКА, МАТЕРИАЛИ И МАШИННО ИНЖЕНЕРСТВО

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