Patents for B23K 23 - Alumino-thermic welding (500)
03/2004
03/09/2004US6703578 Exothermic reactions and methods
02/2004
02/26/2004WO2004016385A1 Crucible cover for aluminothermic reaction
01/2004
01/29/2004WO2004010548A1 Mould insert
01/15/2004WO2003064095A3 Welding apparatus and method
01/08/2004US20040003907 Welding apparatus and method
11/2003
11/25/2003CA2213903C Process for the aluminothermic welding of rails with alloying of the weld metal in the rail head region
11/13/2003US20030209591 Deposit metal welding method
11/04/2003US6640873 Exothermic weld mold assembly
09/2003
09/25/2003US20030178168 Exothermic welding mold conversion plug
08/2003
08/14/2003US20030150347 Exothermic reactions and methods
08/07/2003WO2003064095A2 Welding apparatus and method
06/2003
06/26/2003US20030116693 Device for the alumino-thermic welding of two ends of a rail
05/2003
05/21/2003CN1108894C Disposable transportable reaction crucible for a metallothermic welding portion
04/2003
04/29/2003US6553911 Exothermic reactions and methods
04/10/2003WO2003028944A1 Welded steel/aluminum electrical connection and method
03/2003
03/19/2003CN1403224A Forging process of Artistic door and window
02/2003
02/12/2003CN1396036A 焊接装置和方法 Welding apparatus and method
01/2003
01/23/2003WO2003006198A1 Thermite torch cutting nozzle
01/15/2003EP1274533A1 Device for aluminothermic welding of two ends of a rail
01/09/2003US20030006538 Thermite torch cutting nozzle
01/09/2003US20030006272 Welding apparatus and method
01/08/2003EP1273381A1 Welding apparatus and method for forming electrical connections
01/06/2003CA2390386A1 Welding apparatus and method
12/2002
12/18/2002CN1385275A Depositing metal welding method
11/2002
11/26/2002US6484792 Single use transportable reaction crucible for a metallothermic welding portion
10/2002
10/30/2002CN1376555A Detonator for exothermic flux
10/02/2002CN1371781A Heat releasing welding flux
09/2002
09/18/2002CN1369353A Exothermic welding mould assembly
09/05/2002DE10108597A1 Igniting thermite mixture involves electrically igniting ignition element having closed container sleeve filled with ignition mixture, and subjecting to slight pressure and corresponding hot flame and/or hot gas
08/2002
08/14/2002EP1231012A1 Exothermic weld mold assembly
08/08/2002US20020104953 Exothermic weld mold assembly
05/2002
05/07/2002US6382496 Welding handle clamp
01/2002
01/27/2002CA2314795A1 Welding handle clamp
11/2001
11/13/2001US6316125 Producing molten weld aluminum-copper alloy from exothermic reaction mixture of reducing agent, metal compound and at least two filler metals; released heat of reaction melts and alloys filler metals
10/2001
10/25/2001WO2001078936A1 Device for aluminothermic welding of two ends of a rail
08/2001
08/29/2001CN1310652A Disposable transportable reaction crucible for a metallothermic welding portion
08/08/2001EP1121221A1 Method for aluminothermic joint welding of two rails separated by a gap and casting mold for implementing said method
07/2001
07/18/2001EP1115529A1 Method and device for thermite welding at large water depths
05/2001
05/23/2001EP1100646A1 Disposable transportable reaction crucible for a metallothermic welding portion
05/08/2001US6227282 Process for the aluminothermic welding of rails with alloying of the weld metal in the rail head region
12/2000
12/21/2000WO2000077305A1 Method for welding the ends of rails
12/21/2000WO2000076713A1 Device for pre-drying the welding area of a welding die
12/21/2000WO2000076712A1 Device for pre-drying the welding area of a welding die
12/21/2000WO2000076711A1 Reaction crucible for carrying out metal-thermal reactions
11/2000
11/28/2000US6152349 Welding mold and preheating device intended to cooperate with the welding mold
10/2000
10/17/2000US6131801 Method and device for thermite welding at large water depths
10/03/2000US6125913 Process for the aluminothermic welding of rails with alloying of the weld metal in the rail head region
06/2000
06/06/2000CA2018890C Thermite welding apparatus with crucible and crucible cover used in the process
05/2000
05/17/2000EP0873449B1 Welding mold and preheating device intended to cooperate with the welding mold
05/04/2000DE19849454A1 Verfahren zur aluminothermischen Verbindungsschweißung zweier auf Lücke verlegter Schienen und Gießform zur Durchführung des Verfahrens A process for aluminothermic joint weld laid on two rails gap and casting mold for performing the method
04/2000
04/13/2000WO2000020156A1 Method for aluminothermic joint welding of two rails separated by a gap and casting mold for implementing said method
12/1999
12/02/1999WO1999061194A1 Disposable transportable reaction crucible for a metallothermic welding portion
11/1999
11/25/1999DE19822851A1 Transportable reaction crucible for metallothermic welding material for once-only use
10/1999
10/28/1999DE19819706C1 Mold for intermediate rail section
10/12/1999US5964963 Self-reactive bonding particles selected from the group consisting of gold, cadmium, copper, zinc, tin, lead, silver, silicon, chromium, cobalt, antimony, bismuth, aluminum, iron, magnesium, nitrogen, carbon, and boron; welding, soldering
10/06/1999EP0947284A1 Aluminum welding process and composition for use in same
09/1999
09/21/1999US5954261 For joining cable
08/1999
08/31/1999US5944914 Fine particles
06/1999
06/30/1999EP0925866A2 Mold used in an intermediate cast welding of two rail ends
05/1999
05/11/1999US5902498 Methods of joining metal components and resulting articles particularly automotive torque converter assemblies
12/1998
12/22/1998US5850962 Casting mold for fusion welding of two workpieces
11/1998
11/04/1998EP0875330A1 Exothermic reactions and methods
11/03/1998US5829510 Exothermic welding crucible and method
10/1998
10/28/1998EP0873449A1 Welding mold and preheating device intended to cooperate with the welding mold
10/14/1998EP0870569A1 Welding apparatus and method
10/14/1998EP0870568A1 Strip welder and method
09/1998
09/22/1998CA2104086C Metallothermal reaction mixture
06/1998
06/10/1998EP0846522A2 Alumino-thermic mixture
06/04/1998CA2222840A1 Aluminothermic mixture
05/1998
05/19/1998US5753006 Method for the aluminothermal production of molten steel
04/1998
04/16/1998DE19650207C1 Aluminothermic mix especially for rail welding
04/16/1998DE19635173C1 Casting mould for rail welding comprising a binder and quartz
04/08/1998EP0777550A4 Nanoscale particles, and uses for same
03/1998
03/26/1998DE19637283A1 Verfahren zum aluminothermischen Zwischengußschweißen von Schienen mit Auflegierung des Stahlgusses im Schienenkopfbereich A method of aluminothermic Zwischengußschweißen of rails with alloying steel casting in the rail head area
03/12/1998DE19702410C1 Reaction crucible for alumino thermal welding
02/1998
02/10/1998US5715886 Single use welding mold and method
12/1997
12/04/1997DE19648369C1 Alumino:thermal mixture for welding rails
11/1997
11/26/1997EP0808684A2 Mould for the intermediate cast welding of two workpieces
11/11/1997CA2204928A1 Method for heat treatment of a rail joint which is produced by fusion welding, and a burner arrangement which is intended for use in such a method
10/1997
10/22/1997EP0802015A2 Exothermic welding crucible and method
10/22/1997EP0802014A2 Single use welding mold and method
10/22/1997EP0802013A1 Welding mold and method
10/16/1997WO1997037806A1 Method and device for thermite welding at large water depths
08/1997
08/26/1997US5660317 Exothermic welding jig, molds therefor and method
08/05/1997US5653279 Apparatus and method for forming electrical connections
07/1997
07/17/1997WO1997025479A1 Welding mold and preheating device intended to cooperate with the welding mold
07/15/1997US5647425 For lap welding a conductor to a vertical bar or rod
06/1997
06/25/1997EP0780189A1 Process for the aluminothermic production of a steel melt
06/23/1997CA2193159A1 Method for the aluminothermal production of molten steel
06/11/1997EP0777550A2 Nanoscale particles, and uses for same
05/1997
05/28/1997DE19619171C1 Method of heat treatment of welded connections of rail tracks
05/28/1997DE19615020C1 Starting reaction of finely divided thermal alumino mixture
12/1996
12/10/1996US5582228 Exothermic welding crucible and method
10/1996
10/15/1996US5565117 Method of resistance-welding workpieces of metal and resistance-welded weldment of metal
07/1996
07/09/1996US5533662 Exothermic welding apparatus
07/02/1996US5531259 Method for intermediate cast type welding of finely pearlitized rails
06/1996
06/12/1996CN1031983C Igniting agent for copper conducting wire thermal agent welding
05/1996
05/14/1996US5515904 Apparatus and process for aluminothermic welding
03/1996
03/28/1996WO1996006700A3 Nanoscale particles, and uses for same
03/07/1996WO1996006700A2 Nanoscale particles, and uses for same
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