METHOD AND DEVICE FOR CASTING A HOLLOW LINGOT USING AN ADJUSTABLE COOLED CORE.

摘要

P The central recess of the ingot is formed using a core (16) placed in the ingot mold (1) in which a current of cooling fluid circulates. The coolant flow consists of a main flow of fluid circulated in the central channel of the core (16) and by an additional flow of fluid injected into the main flow. The additional flow is preferably injected via an axis (17) fixed transversely in the mandrel (8) of the core (16) and comprising an opening, preferably in the form of a nozzle opening into the central channel. / P