Pandrol Limited

Railtech International

Pierre Bordery

Lionel Winiar

Frédéric Delcroix

The present invention relates in particular to a mold (M) for aluminothermic welding of a metal rail (), which comprises at least two substantially identical pieces or shells (), configured to be temporarily assembled opposite one another and on either side of said rail () to enclose the head (), web () and foot () of this rail (), each piece or shell () having an upper opening (), which opens onto an internal cavity () bounded by walls () configured to enclose the head (), the web () and the foot () of said rail (), characterized by the fact that said internal cavity () comprises a compressible sealing coating () only against the walls () configured to enclose said web (), foot () and underside of the head (), with the exception of the rest of the head () and the underside of the foot ().

Mold for aluminothermie welding of a metal rail and repair method making use thereof

The invention relates to base part of a mold for aluminothermic welding of metal rails, which base part generally has a rectangular parallelepiped and has an upper face for receiving the foot of said rails, this upper face having a hollow cavity comprising a base, two opposing longitudinal side walls, and two opposing transverse side walls. The invention is characterized in that each of said longitudinal side walls has an intermediate region surrounded by two end regions, and these end regions are located in the same plane, whereas the intermediate region has a curved profile, the well of which is directed towards the opposite side wall.

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Vieux Conde, France

Pierre Bordery