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OwnerJan Hantusch, Michael Steinhorst +2inventors
InventorsJan Hantusch, Michael Steinhorst, Frank Kuster, Ron Moller
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Device for the alumino-thermic welding of two ends of a rail A device for the alumino-thermic welding of two ends of a rail, namely a casting mould (4) which is open on the upperside and which comprises a central casting chamber which is defined by the rail ends, which are spaced apart from each other by a welding groove (3), and also by the walls of the casting mould (4) and to the side of the casting chamber said casting mould comprises at least one riser (13) which is permeably connected to the casting chamber only in the region of the rail foot (11), and wherein a reaction pot (1) is provided on the base side with an outflow device which causes a steel melt to flow out of the reaction pot (1) and into the casting mould (4), is configured substantially to obviate turbulent flow conditions inside the casting mould and to homogenise the solidification of an intermediate cast structure between the ends of the rail such that the steel issuing out of the reaction pot (1) after the completion of an alumino-thermic reaction and after the separation of the steel and slag issues directly into the casting chamber in the form of a top casting and issues into the at least one riser (13) in the form of a bottom casting simultaneously. On the whole, these measures lead to a welding result which is improved in terms of quality in comparison with the prior art and which is free of any casting or structural errors.
Device for the alumino-thermic welding of two rail ends (2) by intermediate casting, having a casting mould (4) which surrounds the rail ends (2) in the region of a welding groove (3) and is open on the upperside, and having a reaction pot (1) which is intended to receive a fine-grain reaction mixture and for implementing the alumino-thermic reaction and is held above the casting mould (4), wherein the casting mould (4) comprises a central casting chamber which is defined by the rail ends (2), which are spaced apart from each other by the welding groove (3) and also by the facing walls of the casting mould (4), and to the side of the casting chamber said casting mould comprises at least one riser (13) which is permeably connected to the casting chamber only in the region of the rail foot (11) and wherein the reaction pot (1) is provided on the base-side with an outflow device which causes a steel melt to flow out of the reaction pot (1) and into the casting mould (4), characterised in that the outflow device and/or the casting mould (4) is/are configured in such a manner that the steel issuing out of the reaction pot (1) after completion of the alumino-thermic reaction and after separation of the steel and slag issues directly into the casting chamber in the form of a top casting and issues into the at least one riser (13) in the form of a bottom casting simultaneously.
Dependencies are inferred from the claim text.