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).

Abstract: A device for preheating a metal casting channel (3). The device is positioned in a rapidly removable manner by a frame (1) consisting of a stationary portion (12) and a movable portion (26). The channel (3) comprises a refractory part (5) surrounded by an insulating coating (7), an inductor (8) and refractory concrete (10) within a shell (11). The preheating device includes the inductor (8) and an element (2) made of a refractory and electrically conductive material. Said device is useful for evenly and uniformly preheating a metal casting channel (3).

Abstract: A heating assembly 1 for transferring liquid metal 28 has a closed cross-section and includes a refractory tube 4 wrapped in an insulating layer 5 which is in turn surrounded by an inductor 3 enclosed in refractory concrete within a metal shell, the insulating layer 5 consisting of an insulating refractory concrete layer 5a. The heating assembly 1 may be used in a liquid metal holding furnace 9 provided with a supply of pressurised gas Pr for producing metal parts.