MAKING DIRECTIONALLY SOLIDIFIED CASTINGS.

摘要

A mold having a crucible portion connecting with the article forming portion is positioned within a tapering susceptor heated by a surrounding induction coil and the susceptor serves to control the temperature gradient during the solidification of the alloy in the mold. The crucible is located at the bottom of the assembly until the alloy is melted and the entire assemblage is then inverted to cause the molten alloy to flow into the article portion of the mold, the latter being preferably positioned on a chill plate.