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AssigneePandrol Limited
InventorsNicolas Demond, Clément Meresse, Thiago Santos
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The present invention relates to a moulding assembly for aluminothermic welding of metal rails (30), comprising at least one mould part (1, 50) configured to come into contact with at least one other mould part (1, 50) and rails (30) to be welded in order to form a mould cavity (102) in which the ends (31) of the metal rails to be welded are arranged and into which a molten metal is cast in order to weld the metal rails (30), the moulding assembly being characterised in that each mould part (1, 50) comprises a seating (13) configured to be placed in contact with at least one of said rails (30), said seating (13) comprising a groove (60) into which a sealing product (40) made of intumescent material is applied.
A moulding assembly for aluminothermic welding of metal rails, comprising at least one mould part configured to come into contact with at least one other mould part (1, 50) and rails to be welded in order to form a mould cavity in which the ends of the metal rails to be welded are arranged and into which a molten metal is cast in order to weld the metal rails, wherein each mould part comprises a seating configured to be placed in contact with at least one of said rails, said seating comprising a groove into which a sealing product made of intumescent material is applied.
The method for aluminothermic welding of metal rails, wherein the ends of the metal rails to be welded are arranged in a mould cavity of an aluminothermic welding mould, said mould comprising at least two mould parts configured to come into contact with each other and the rails to be welded in order to form said mould cavity, each mould part comprising a seating configured to be placed in contact with at least one of said rails, said seating comprising a groove, the method comprising casting a molten metal into the mould cavity and, prior to the casting applying a sealing product made of intumescent material in the groove.
Dependencies are inferred from the claim text.