Apparatus for shielding a molten metal stream

摘要

A shroud for shielding the pouring of molten metal in a neutral atmosphere from a metallurgical vessel to a center runner trumpet associated with bottom pour ingot molds or the like. The shroud is a vacuum formed fiber structure with a flat bottom and a contoured self-sealing top configured to seal against a metal ware extension from the metallurgical vessel which maintains the neutral atmosphere.