Metal casting processes and apparatus

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 7/00 (2006.01) B22D 9/00 (2006.01) B22D 29/04 (2006.01) B22D 39/04 (2006.01) B22D 43/00 (2006.01)

Patent

CA 2240332

Automated apparatus for the casting of metal such as zinc which includes an indexed carousel for indexing moulds through four stations. The stations are a casting station 290 where metal is cast via a launder 50, a skimming station 291 where an automatic robot controlled skimmer removes dross, a transfer station from which moulds containing molten metal are removed by an overhead crane to be placed in a cooling tank at a location substantially free of vibration and cooled moulds are returned by the crane to the transfer station and a delivery station 293 where the cast ingots 200 are removed from the moulds by another overhead crane and the empty moulds are recycled to the casting station. The ingots are lifted from the moulds at the delivery station by a mechanism which removes pins cast with the ingots and returns them to the empty mould.

Appareil automatisé servant à couler des métaux, par exemple du zinc. L'appareil comprend un chariot à plateau tournant qui transporte les moules à quatre postes successifs distincts, soit un poste de coulée (290) où le métal est coulé au moyen d'un caniveau (50), un poste d'écrémage (291) où une écumoire contrôlée par un robot enlève les crasses, un poste de transfert où les moules contenant le métal fondu sont retirés au moyen d'un pont roulant pour être placés dans un bac de refroidissement à un endroit essentiellement libre de vibrations, les moules refroidis étant retournés au moyen de l'appareil de levage au poste de transfert, ainsi qu'un poste de démoulage (203) où les lingots coulés (200) sont retirés des moules par un autre pont roulant, après quoi les moules vides sont retournés au poste de coulée. Les lingots sont retirés des moules au poste de démoulage au moyen d'un mécanisme qui retire les broches coulées avec les lingots et les remet dans les moules vides.

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