| 摘要 |
Melting apparatus for melting a metal, such as aluminium, compris- ing a melting chamber, a burner chamber and a passage which extends between the melting chamber and the burner chamber and which has an inlet opening on the melting-chamber side and an outlet opening on the burner-chamber side for allowing molten metal to pass from the melt- ing chamber to the burner chamber, circulation means being suitable for transferring molten metal from a first or suction connection to the burner chamber to a second or pressure connection to the melting chamber. Ac- cording to the invention, the residual bath when changing the metal com- position is minimised and productivity maximised.
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