Method of rebuilding an ingot mold
OwnerMicheal Donald La Bateinventor
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Abstract
A method of rebuilding the eroded area of an ingot mold such as used in casting steel ingots places a metal producing exothermic compound in a cleaned eroded area of the ingot mold to be rebuilt, ignites the compound and confines the molten metal produced by the exothermic reaction to the eroded area where it forms a welded bond with the metal of the ingot mold and fills the eroded area. A protective metal coating of a suitable welding rod metal may be deposited by electric arc or flame welding on the metal patch formed of the exothermic material.
Claims7
The method of rebuilding an ingot mold having an eroded area in the cavity thereof, said cavity having a known original configuration and comprising the steps of cleaning said eroded area, placing a metal producing exothermic compound in said eroded area and igniting said compound so as to produce a molten mass in said eroded area and containing said molten mass in said eroded area so as to reshape said cavity in said mold in accordance with its known original configuration, said metal producing exothermic compound comprising metallic aluminum, wollastonite, ferro silicon, manganese dioxide, fine iron scale and graphite, the fine iron scale an metallic aluminum being present in quantites sufficient to form thermite capable of melting the compound.
Dependencies are inferred from the claim text.