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Registration Number

0222U000305, 0121U110392 , R & D reports

Title

Improving the technology of production of railway axes to increase their reliability and durability

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Head

Babachenko Oleksandr І., Доктор технічних наук

Registration Date

05-01-2022

Organization

Institute of Ferrous Metallurgy. ZI Nekrasov of the National Academy of Sciences of Ukraine

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The analysis of requirements of normative and technical documentation to steel for railway axes is executed. The analysis of world tendencies in the direction of improvement of quality of railway axes is carried out. Ways to increase the operational reliability and durability of railway axles have been studied. It is established that in the material science aspect to solve the problem of improving the quality of axles of railway cars, the following main ways can be identified: measures to improve the quality of steel for axle production in the smelting process (reducing sulfur, phosphorus, hydrogen, etc.); alloying and microalloying of steel for the manufacture of railway axles; improving the machinability of the metal of the axial workpieces in the process of hot deformation; selection and development of optimal modes of heat treatment of axial workpieces. Smelting of experimental and industrial smelting of steels for railway axes in the conditions of domestic metallurgical enterprises is performed. Peculiarities of pollution by non-metallic inclusions and gas saturation formed in steels for domestic railway axles have been studied. It is shown that the quality of the metal of the continuously cast billet is one of the determining factors influencing the properties of the rough axes The technological possibility of steel production for railway axes at domestic enterprises has been established. Difficulties that need to be eliminated for stable mass production of high-quality railway axles of the OS brand in the conditions of domestic enterprises have been identified.

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Babachenko Oleksandr І.
Dementieva Zhanna A.
Klemeshov Evgen S.
Klynova Olha P.
Kononenko Ganna A.
Podolskyi Rostyslav V.
Puchykov Oleksandr V
Safronov Oleksandr L.
Safronova Olena A
Uzlov Oleg V
Shpak Olena A.