Back to results
US 4,177,855 AGranted
Tundish and method of pouring molten metal therewith
AssigneeFoseco Trading A.G.
InventorsJean L. Duchateau, Bernard E. Sautiere
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFoseco Trading A.G.
InventorsJean L. Duchateau, Bernard E. Sautiere
Estimating the term…
The invention is for a method of pouring molten metal from a ladle to another vessel e.g. a mould, via an intermediate vessel e.g. a tundish, and to an intermediate vessel for us in such a method. Before pouring two refractory heat-insulating slabs are positioned in the intermediate vessel spaced apart and extending downwardly into the vessel. The slabs are pivotally mounted at an upper edge or in a wall portion of the intermediate vessel and positioned so that, on pouring the molten metal from the ladle into the space between the slabs, the slabs contain splash of the metal on initial pouring. As pouring is continued the slabs are raised by the molten metal and pivot about their pivotal mounting until they reach a generally horizontal position on top of the molten metal in the intermediate vessel when they form a heat-insulating cover.
A method of pouring molten metal comprising providing an intermediate vessel with at least one nozzle disposed in pouring relationship to another vessel, positioning in the intermediate vessel pivotally mounted at an upper edge or in a wall portion thereof, two refractory heat-insulating slabs in spaced apart relation and extending downwardly into the intermediate vessel, pouring the molten metal from a ladle into the space between the slabs so that the slabs contain splash of the metal on initial pouring, and continuing pouring in such a manner that the slabs are raised by the molten metal to a generally horizontal position on top of the molten metal in the intermediate vessel.
A method of pouring molten metal comprising providing an intermediate vessel with at least one nozzle disposed in pouring relationship to another vessel, positioning in the intermediate vessel two refractory heat-insulating slabs in spaced-apart relation and extending downwardly into the intermediate vessel, one of said slabs being pivotally mounted at an upper edge or in a wall portion of the intermediate vessel, pouring the molten metal from a ladle into the space between the slabs so that the slabs contain splash of the metal on initial pouring, and continuing pouring in such a manner that said one slab is raised by the molten metal to a generally horizontal position on top of the molten metal in the intermediate vessel.
An intermediate vessel comprising a bottom wall and upstanding side wall structures, at least one pouring nozzle, two spaced apart refractory heat-insulating slabs, pivotally mounted at an upper edge or in a wall portion thereof, said slabs being movable about said mount from a first position in which they extend downwardly into the vessel generally parallel to each other adjacent said bottom wall, to a second position in which they lie substantially in a common, generally horizontal plane.
An intermediate vessel comprising a bottom wall and upstanding side wall structures, at least one pouring nozzle two spaced apart refractory heat-insulating slabs, one of which is pivotally mounted at an upper edge or in a wall portion thereof, said one slab being movable about its mounting from a first position in which it extends downwardly into the vessel generally parallel to the other slab and adjacent said bottom wall to a second position in which it lies substantially in a generally horizontal plane.
Dependencies are inferred from the claim text.