Continuous casting mold and process of casting

In a continuous casting plate mold for producing a steel slab having a solidified steel shell enclosing a liquid core and employing spaced oppositely disposed substantially parallel longitudinal wall plates forming wide walls of a continuous slab casting and coacting spaced transverse wall plates forming narrow end wall having oppositely disposed inwardly tapered inner surfaces, the improvement comprising;

• transverse wall plates each having formed on the inner surface at least adjacent the lower ends thereof flat sections disposed perpendicular to said longitudinal wall plates extending inwardly from the lateral longitudinal edges a distance about equal to the thickness of the shell of the wide walls of the casting when the casting is withdrawn from the mold with the inner ends of said flat sections being interconnected by a convex section extending above the plane of said flat sections with said inner surfaces adapted to remain in supporting contact with the end surface of a said casting being formed within said mold, and said transverse wall plates characterized by being resistant to wear such that the frequency with which said transverse wall plates require reworking in order to maintain said mold in satisfactory working condition is substantially reduced.

A continuous process for casting a steel slab in the form of an endless strand which reduces the frequency the transverse narrow end walls of a continuous casting mold need reworking in order to maintain the slab mold in satisfactory working condition comprising;

• continuously introducing molten metal into a water cooled open ended vertically disposed generally rectangular mold which forms a solidified steel shell enclosing a liquid core with said mold having spaced parallel longitudinal walls forming flat side walls of said casting and coacting spaced transverse walls having oppositely disposed inwardly tapered inner surfaces forming narrow end walls of said casting, said transverse walls having flat sections extending inwardly from each of the longitudinal edges thereof perpendicular to said longitudinal walls and having a length at least at the lower end of said mold about equal to the thickness of the shell forming the side walls of the casting at the point the casting is withdrawn from the mold with a convex section connecting the inner ends of said flat sections, and withdrawing said casting from said mold between spaced oppositely disposed planar containment rolls which engage the side walls of said casting below the lower end of said mold.