Liquid metal pouring duct, process and device for homogenizing metal
AssigneeSeva
InventorsJean-Louis Comarteau, Christophe Liebaut, Patrice Nykiel, Alain Remy
Life of this patent
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Abstract
A liquid metal casting conduit (1) is shaped as a partial torus and has an inductor (3) embedded in concrete and whose turns are asymmetrical with respect to the axes (XX') and (YY') of the conduit. It is used for to the homogenization of the metal temperature when the conduit is secured to a low pressure casting ladle (7).
Claims6
An elongate duct (1) for pouring liquid metal to feed a casting mold, the duct having a closed cross-section opening at one, exit end to define a pouring orifice (2) for feeding said mold, said duct comprising, over its length, a heating element constituted by a coil-shaped inductor (3) through whose cooled turns (4) an alternating electric current flows, said inductor being embedded in concrete (5) surrounding a heat-resistant tube (6), wherein the inductor turns as a whole are asymmetrically disposed in both a longitudinal direction of the duct, being more closely spaced proximate said exit end, and in a transverse direction of the duct such that a longitudinal axis of the inductor turns is laterally offset from a longitudinal axis of the duct, so as to make the temperature of the metal (9) homogeneous.
Dependencies are inferred from the claim text.