Process and device for melting and casting of metals in mould

Details Process and device for melting and casting of metals in mould Process and device for melting and casting of metals in mould

B - Operations, Transporting

22

D

B22D 18/06 (2006.01) B22D 21/02 (2006.01) B22D 23/00 (2006.01) B22D 27/13 (2006.01) B22D 27/15 (2006.01)

Patent

CA 2197135

When melting and casting metals in moulds, the melting is carried out in an induction-heated crucible (13) on which a mould (10) with a downward-facing filling opening (26) is located in the melting position. After melting the metal, the crucible (13) and the mould (10) are jointly brought around a horizontal swiveling axis (A-A) into a tilting position in which the molten material flows from the crucible (13) into the mould (10). In order to be able to complete the process with reactive metals as well, the melting is done in a crucible (13) that is surrounded by a vacuum, this crucible is surrounded by an induction coil (15) outside of the vacuum, the mould (10) is located in a vacuum-sealed casting chamber (6) which is evacuated together with the crucible (13) prior to melting and the cast is carried out by a joint tilting of the crucible (13), casting chamber (6) and mould (10) by at least 180 degrees while the vacuum is maintained.

Lors de la fusion et de la coulée des métaux dans des moules, la fusion est réalisée dans un creuset de fusion chauffé par induction (13) sur lequel un moule (10) doté d'une ouverture de remplissage (26) orientée vers le bas se trouve en position de fusion. Après la fusion du métal, le creuset (13) et le moule (10) sont portés ensemble autour d'un axe de pivotement (A-A) en position de basculement où le matériau en fusion s'écoule du creuset (13) dans le moule (10). Pour qu'il soit également possible de compléter le procédé avec des métaux réactifs, la fusion est réalisée dans un creuset (13) entouré d'un vide, ce creuset est aussi entouré d'une bobine d'induction (15) à l'extérieur du vide, le moule (10) se trouve dans une chambre de coulée scellée sous vide (6) qui est vidée en même temps que le creuset (13) avant la fusion et la coulée est réalisée en basculant simultanément le creuset (13), la chambre de coulée (6) et le moule (10) sur au moins 180 degrés pendant que le vide est maintenu.

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