EXOTHERMIC REPAIRING METAL INGOT MOLDS

A method of repairing an erosion cavity in foundations of ingot molds and the bottoms of closed-bottom metal ingot molds comprising: coloring in said cavity an exothermic reaction mixture comprising a combustible powder and a metallic oxide, having the amount of said mixing a volume not more than on...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	S.J. MANGANELLO, A.J. PIGNOCCO, R.H. KACHIK
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS POWDER METALLURGY SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method of repairing an erosion cavity in foundations of ingot molds and the bottoms of closed-bottom metal ingot molds comprising: coloring in said cavity an exothermic reaction mixture comprising a combustible powder and a metallic oxide, having the amount of said mixing a volume not more than one and a half times the volume of the cavity, igniting said mixture to form a superheated melt comprising a metallic phase and a slag phase, such that said molten mass is contained entirely within said cavity, maintaining said molten mass in said cavity for a sufficient time to allow said molten mass to separate so that said metallic phase is at the bottom and the slag phase on top, to allow said molten mass to solidify with the metallic phase joined with safety at the bottom of the cavity and said slag phase is safely attached to said metallic phase. (Machine-translation by Google Translate, not legally binding)