Patent ID: 6830723
Filing Date: 2004-12-14
Classification: B22D,C21C,C22B,F27B,F27D,F27M

Abstract:
An apparatus for in-line treatment of a molten metal, comprising:a treatment vessel for holding said molten metal, a removable cover for the treatment vessel and sealing means between the cover and the vessel to provide a gas tight treatment zone, said sealing means comprising mating peripheral flanges on said vessel and said cover, having between said mating flanges at least two spaced sealing strips adapted to contact the mating faces of said mating flanges, said two sealing strips including an annular thermal barrier strip formed of a deformable refractory material adapted to provide a gas leak resistant, thermal barrier between the cover flange and the vessel flange and a metal strip providing a mechanical contact between the cover flange and the vessel flange, and including an inner metal face providing a splash shield to protect the annular strips and mating flanges from metal splashes.