Patent ID: 7611666

Claim:
In a refractory-lined tundish for holding molten metal, said tundish having a metal shell with a bottom wall and a sloping side wall that define an internal cavity having a predetermined shape, and said tundish having a lining of refractory material on said metal shell, a device for forming a hot-face refractory layer on said refractory lining, said device comprised of: a mold dimensioned to be positioned within said refractory-lined tundish, said mold having an upper wall and a side wall extending downwardly from said upper wall, said side wall having a shape generally conforming to the shape of said internal cavity of said tundish and having a lower end formed to rest on said refractory lining on the bottom wall of said refractory-lined tundish, said upper wall and side wall defining an interior chamber, said side wall of said mold and said refractory lining on said sloping wall of said tundish forming a gap therebetween, said gap extending around said mold, said mold being dimensioned such that said gap between said side wall of said mold and said refractory lining on said side wall of said tundish is wider at an upper portion of said internal cavity than at a lower portion of said cavity, said mold including spaced-apart slots formed in said lower end of said side wall, said slots dimensioned to receive ends of a dam wall disposed in said tundish, said mold also including flexible seal elements disposed along each side of each of said slots to sealingly engage sides of said dam wall when said mold is disposed in said tundish, and a heating means extending through said upper wall of said mold for heating the interior chamber of said mold.