Method and mold for aluminothermic welding of rails

In forming an aluminothermic weld between adjoining rail ends, a sand mold is arranged around the rail ends disposed in spaced relation. The sand mold is formed at least in part of silica sand. The surface of the mold in contact with the rail ends and enclosing the space between the rail ends is for...

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Bibliographische Detailangaben
Hauptverfasser:	SWARTZ, MARK A, WOOLEY, THOMAS J, KACHIK, ROBERT H
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FIXED CONSTRUCTIONS MACHINE TOOLS MACHINES FOR MAKING RAILWAYS OF ALL KINDS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PERMANENT WAY PERMANENT-WAY TOOLS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	In forming an aluminothermic weld between adjoining rail ends, a sand mold is arranged around the rail ends disposed in spaced relation. The sand mold is formed at least in part of silica sand. The surface of the mold in contact with the rail ends and enclosing the space between the rail ends is formed of one of a combination of silica sand and zircon sand, a layer of zircon sand inwardly from a layer of silica sand, or a thin layer of a zircon mold wash on a surface formed of silica sand.