| 摘要 |
<p>Dispensing apparatus (1) for molten metal or the like comprising a vessel (2) receiving in use a main body (3) of liquid and having dispensing valve means (6,7) operable to dispense a flow of liquid therefrom, a container (9) defining a chamber (15), means (24) for supporting the container such that an open mouth (16) thereof is immersed in the main body of liquid to define a head space (19) above the liquid in the chamber, suction means (13) connected to the container and operable to reduce pressure in the head space so as to draw liquid from the vessel into the chamber and an induction heating coil (21) operable to heat liquid in the chamber above the level (17) of the main body of liquid, including sensing means (20) sensing the level (17) of the main body of liquid, the sensing means being connected to regulating means (43, 14, 28) operable to regulate the pressure in the head space to thereby regulate the volume of liquid in the chamber such that the level of the main body of liquid is maintained substantially constant during the dispensing of liquid.</p> |
