Combined crucible, tundish and pouring spout

摘要

A crucible, tundish, and pouring spout is formed as a single unit with the crucible portion being positioned in an induction furnace for providing sufficient heat to ingots placed in the crucible portion. An extension is positioned on top of the crucible portion on one side forming an integral tundish portion with one part of the crucible for the molten metal. After the induction coil had melted the ingot and the induction heater and crucible portion are tilted approximately 90 DEG , the molten metal is held by the tundish portion. A pouring spout portion extends from the extension referred to for pouring the molten metal from the tundish portion. Said pouring spout portion includes a nozzle insert and intermediate insert for providing the proper restricted opening and to protect the inner sides of the spout portion. A metal plug is provided where the spout portion meets the tundish portion which is melted by the molten metal to start the pouring at a predetermined time after the induction heater and crucible portion have been rotated. A heat shield is provided over the opening of the crucible portion and tundish portion for preventing unnecessary exposure of the interior thereof.