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Rail welding

Flash-butt welding

Flash-butt welding is a method to join rails by heating up the joint by flash caused by current applied to both rail ends.

Flash-butt welding

MI-NE achieved 2,700 joints at Hokuriku-Shinkansen (from Hakusan to Awara) using a flash-butt machine owned by Japan Railway Construction, Transport and Technology. Agency (JRTT)

Advantages

  1. 1Rail joint method with high joint strength and higher reliability
  2. 2Suitable for welding at welding base

Welding at welding base

Welding joint by flash-butt

See here for moving images.

Rail welding