Research and Development > JFE TECHNICAL REPORT >JFE TECHNICAL REPORT No.20 March 2015 - Special Issue on “Steel Plates” and “Welding and Joining” > Rail Flash-Butt Welding Technology

No.20 March 2015 - Special Issue on “Steel Plates” and “Welding and Joining”

Rail Flash-Butt Welding Technology

FUJII Mitsuru      NAKANOWATARI Hiroaki      NARIAI Kiyoshi

Abstract

New rail flash-butt welding technology with JFE feedback flashing rate control and direct current (DC) inverter type power supply system was developed. This welder also employed preheating system for continuous welding which had been adopted in overseas, achieving high efficiency and energy saving operation along with the reduction of weight and size of the machine. The welder has been delivered to East Japan Railway Company with successful operation. Outline of the development, delivered machines and applications at the construction site are introduced.

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