Flash Butt Welding...

flash butt welding
n. A technique for joining segments of metal rail or pipe in which segments aligned end to end are electronically charged, producing an electric arc that melts and welds the ends of the segments, yielding an exceptionally strong and smooth joint. Also called flash welding.

Most modern railways use continuous welded rail (CWR), sometimes referred to as ribbon rails. In this form of track, the rails are welded together by utilising flash butt welding to form one continuous rail that may be several kilometres long. Because there are few joints, this form of track is very strong, gives a smooth ride, and needs less maintenance; trains can travel on it at higher speeds and with less friction.

Delta Railroad Construction is the only private contractor that provides its own portable flash-butt welding system for continuous welded rail. The system is fully contained on a specially designed trailer that can be delivered to the site and used on-rail. Delta's Mobile Welder is an independent, self-propelled, electric flash-butt welding factory on wheels.

Flash butt welding is the preferred process which involves an automated track-laying machine running a strong electrical current through the touching ends of two unjoined pieces of rail. The ends become white hot due to electrical resistance and are then pressed together forming a strong weld. Thermite welding is a manual process requiring a reaction crucible and form to contain the molten iron. Thermite-bonded joints are also seen as less reliable and more prone to fracture or break.

Delta Railroad Construction's capabilities include closure welds, joint elimination, panel track, switch yards, insulated joint plug insertion, CWR renewal, and new construction. The possibilities are endless when dealing with Delta Railroad Construction.

Delta's Flash Butt Welding System provides critical time and cost savings to the client.