F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
39/103, 307/29
F27D 15/00 (2006.01)
Patent
CA 1052095
ABSTRACT OF THE DISCLOSURE A furnace vessel comprises a vertically oriented refractory lined cylindrical metal shell and a cover. The interior bottom of the vessel is dish shaped the vessel has external upwardly ending molten metal receiving and pouring spouts leading to the upper surface of the bottom. The inlet to the receiving spout is higher than the outlet of the pouring spout whether the vessel is untilted or tilted to enable addition of molten metal to the vessel at all times. Means are provided for tilting the vessel on an axis that is on the same side of a transverse mid-plane through the vessel as are the pouring and receiving spouts. The tilt axis is directed through the outlet end of the pouring spout so the level of its tip is substantially unchanged when the vessel is tilted. The temperature of the metal in the vessel is maintained by heat radiated from an electrically resistive rod which extends across the interior of the vessel above the metal level. The ends of the heating rod are provided with electrical connectors and supports which are mounted on carriages. The carriages are mounted on track sections which tilt with the furnace and align with cooperating stationary track sections on which the carriages may be traversed for servicing the rod when the vessel is untilted. The axis of the rod is aimed such that an extrapolation thereof will not cross over the tilt axis within the width of the furnace so that the carriages and tracks are clear of the working area around the receiving and pouring spouts at all times. The vessel is adapted for holding, reducing, alloying, degassing, vacuum treatment and introducing additives to molten metal during the interval between melting and utilization of the metal.
223531
Ferrari Robert J.
Gray Ronald D.
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