System and process for determination of liquid-solid interface and head in electromagnetic casting.

摘要

An apparatus and process for casting metals wherein the molten metal is contained and formed into a desired shape by the application of an electromagnetic field established by an inductor. The casting has a liquid-solid interface defining a molten material head and solid material portions of the casting. The height of the liquid metal head, the location of the liquid-solid interface at the periphery of the forming ingot, and/or variations in the values of these parameters is displayed during the casting run by a system which monitors the in-phase component of the voltage across the inductor (11) to determine variations in the total equivalent series resistance of the electromagnetic casting system as seen by the inductor (11).