Open AccessImprovement of the technology of resistance butt welding of rail strings for access railway lines
Author(s) -
Н. А. Козырев,
Р. А. Шевченко,
R. E. Kryukov,
А. А. Усольцев,
А. Н. Прудников
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/823/1/012028
Subject(s) - welding , base metal , materials science , joint (building) , butt joint , metallurgy , flash welding , butt welding , composite material , structural engineering , arc welding , filler metal , engineering
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.