| 摘要 |
An apparatus for and method of pouring molten metal from a refractory vessel into the sprue of a mold where the vessel is in contact with the sprue. Molten metal is poured through the orifice of a nozzle in the bottom of the vessel. Laminar flow and velocity of the molten metal through the orifice are controlled by a stopper that extends from the orifice and also displaces molten metal in the sprue of the mold when the stopper is in the closed position to minimize excess buildup of solidified metal in the volume of the sprue. Filtering of dross can be accomplished in the refractory vessel and heating means can be provided to hold the molten metal at the appropriate temperature. |
