Improvement of the technology of resistance butt welding of rail strings for access railway lines

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Improvement of the technology of resistance butt welding of rail strings for access railway lines

Kozyrev, N A; Shevchenko, R A; Kryukov, R E; Usoltsev, A A; Prudnikov, A N

IOP Conference Series: Earth and Environmental Science, 07/2021, Volume: 823, Issue: 1

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Abstract To ensure the quality of the welded rail joint, a study of the level of contamination with non-metallic inclusions of E76KhF rail steel (base metal and weld seam) was carried out. It was found that the predominant type of nonmetallic inclusions in welded joints in all studied samples are point oxides. It is shown that the modes of resistance butt welding do not affect the contamination of the samples.

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Kozyrev, N A | Shevchenko, R A | Kryukov, R E | Usoltsev, A A | Prudnikov, A N

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