US 4,805,685 AGranted

Mold for the continuous casting of beam blanks

AssigneeSMS Concast Inc.

InventorDonald P. Lorento

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Abstract

A mold for the continuous casting of beam blanks has a central casting passage bounded by a pair of parallel walls. On either side of the central casting passage is an expanding casting passage which widens in a direction away from the central casting passage and is bounded by a pair of inclined walls diverging from respective ones of the walls of the central casting passage. A terminal casting passage bounded by a pair of side walls parallel to the walls of the central casting passage is located outwardly adjacent to each expanding casting passage. The various casting passages cooperate to define a dogbone-shaped mold cavity. The inclined walls have an angle of inclination no smaller than arc tangent (y/z) where y is the distance from a point on an inclined wall to a transverse center line of the transverse cross section of the mold and z is the distance from such point to a longitudinal center line of the transverse cross section of the mold.

Claims19

Dependent claims

A mold for the continuous casting of beam blanks, comprising a first section including a pair of first walls defining a first casting passage having opposite open ends, the transverse cross section of said first section having a center, and substantially orthogonal longitudinal and transverse center lines which intersect at said center;

and at least one expanding section to one side of said first section, as considered in the direction of said longitudinal center line, and including a pair of second walls defining at least one expanding casting passage which communicates with said first casting passage and has opposite open ends, said second walls being inclined relative to one another in such a manner that said one expanding casting passage widens in a direction away from said first casting passage, and said one expanding casting passage including a first end remote from, and a second end nearer to, said first casting passage, said one expanding casting passage having a maximum width at said first end and a minimum width at said second end, and each of said second walls having a height, as measured in the direction of said tranverse celter line, no smaller than about 0.25 times said maximum width, and at least one of said second walls having an angle of inclination no smaller than arc tangent (y/z) where:
y is the distance from a point on said one second wall to said transverse center line, and
z is the distance from said point to said longitudinal center line.

Dependencies are inferred from the claim text.