Manufacturing method of flash butt welded rail

A manufacturing method of a flash butt welded rail having a plurality of rail portions;

• and a weld joint portion joining the plurality of rail portions, the method comprising:
• flash butt welding rails, the rails including, as a chemical composition, in terms of unit mass %, C:
• 0.70 to 1.20%, Si:
• 0.05 to 2.00%, Mn:
• 0.05 to 2.00%, P≤0.0300%, S≤0.0300%, Cr:
• 0 to 2.00%, Mo:
• 0 to 0.50%, Co:
• 0 to 1.00%, B:
• 0 to 0.0050%, Cu:
• 0 to 1.00%, Ni:
• 0 to 1.00%, V:
• 0 to 0.200%, Nb:
• 0 to 0.0500%, Ti:
• 0 to 0.0500%, Mg:
• 0 to 0.0200%, Ca:
• 0 to 0.0200%, REM:
• 0 to 0.0500%, N:
• 0 to 0.0200%, Zr:
• 0 to 0.0200%, Al:
• 0 to 1.0000%, and a balance including Fe and impurities;
• and
• forced cooling the weld joint portion immediately after the flash butt welding is completed, wherein
• when the forced cooling is performed from an austenite temperature range, in a welding center of the weld joint portion, a cooling stop temperature TC of an outline surface of a head top corner is 560° C. or higher and 850° C. or lower;
• and
• a cooling stop temperature TA of an outline surface of a head jaw is 650° C. or higher and 950° C. or lower.