FIELD: transport.
SUBSTANCE: process comprises reheating of rail welding zone in area P located at distance C from weld centre Q. Note here that 0.2Lh≤C≤3Lh, where Lh is the length of heat affected zone (HAZ) in rail welding zone.
EFFECT: weld with fatigue strength suppressing fatigue failures in rail web in horizontal direction and at bending at rail root.
13 cl, 4 ex, 7 tbl, 31 dwg
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