Abrégé

A metallurgical treatment vessel comprises a multi-use, isostatically pressed, or vibrocast one-piece refractory vessel (1), comprising refractory sidewalls (2) and an integral refractory base (3), the vessel (1) being adapted, in use, to contain an induction heated melt, with a gas introduction device (4) connected to an external surface (5) of the refractory base (3), and with the granulometry of the refractory material of both the base (3) and sidewalls (2) being such that both are gas permeable, whereby gas introduced into the base (3) by the introduction device (4) percolates via interstitial routes into the base (3) and also from the base (3) into the sidewalls (4), whereby a gas emitting area is provided not only over the melt contacting surface (6) of the base (3), but also over the melt contacting inside surface (6A) of the sidewalls (2) of the vessel (1 ).

Classes IPC  ?

• F27B 14/04 - Fours à creusetsFours à bassin adaptés pour le traitement de la charge sous vide ou sous atmosphère contrôlée
• B22D 41/58 - Buses de coulée avec des moyens d'injection de gaz
• C22B 9/05 - Affinage par traitement avec des gaz, p. ex. par décrassage par un gaz
• B22D 1/00 - Traitement des métaux en fusion dans la poche ou dans les chenaux de coulée avant le moulage