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US 3,945,426 AGranted
Splash can for ingot molds and methods
AssigneeKaiser Steel Corporation
InventorsAndrew Walker, Charles Frederick Long, Harry Davies Birks
Life of this patent
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AssigneeKaiser Steel Corporation
InventorsAndrew Walker, Charles Frederick Long, Harry Davies Birks
Estimating the term…
A splash can for placement in a mold before pouring molten metal into the mold, so as to eliminate scab producing splashes during pouring into the ingot mold. The top of the mold typically has a mouth of reduced diameter and the splash can of the present invention is of cylindrical form having a diameter greater than the mouth. The can is formed from material compatible with the molten material and deformable so that the can can be folded for introduction into the ingot mold through the mouth without exceeding the elastic limit of the material. The can is retained in the folded position by a tension member that is wrapped therearound; after the folded can is introduced into the mold, the tension member is severed whereupon the can springs into a generally cylindrical shape within the mold.
A splash can for use in pouring molten metal into an ingot mold of the type having an upward opened mouth of reduced diameter to receive molten metal, said mold defining a cavity having an interior periphery C, said splash can comprising a strip of metal material compatible with the molten metal, said strip being of substantially rectangular shape and having two opposed edges, means for joining said two opposed edges of said strip to form a cylinder comprised of a closed loop and having a diameter greater than the mold mouth and not substantially greater than C/.pi., said strip being resiliently coiled upon itself into a folded condition defining a double walled helix capable of resiliently returning to the original shape of the cylinder, said strip when in the folded condition being of a size suitable for introduction into said mold through said mouth, and means releasably retaining said cylinder in said folded condition.
A method for eliminating splashing of molten metal onto the interior walls of a mold cavity during pouring of the molten metal into the mold, the mold being of the type that has an upward opened mouth of reduced diameter, said method comprising the steps of providing a rectangular strip of metal compatible with the molten metal, joining two opposed edges of the metal at a seam to form a cylinder comprised of a closed loop, folding the cylinder for insertion into the mold through the mouth, said folding step being performed by coiling the cylinder upon itself so as to resiliently deform the cylinder into a double walled helix capable of resiliently returning to the original shape of the cylinder, providing an elongate tension member, installing the tension member in circumscribing relation to the folded cylinder to retain the cylinder in a folded condition, introducing the folded cylinder into the mold through the mouth, and removing the elongate tension member to enable the cylinder to resiliently unfold within the mold.
Dependencies are inferred from the claim text.