Twin-belt continuous caster with containment and cooling of the

Details Twin-belt continuous caster with containment and cooling of the Twin-belt continuous caster with containment and cooling of the

1988-07-25

1990-02-20

Godici, Nicholas P.

Metal founding

Process

Shaping liquid metal against a forming surface

164432, 164444, 164486, B22D 1106, B22D 1124

Patent

active

049017853

ABSTRACT:
In continuously casting molten metal into cast product by a twin-belt machine, it is desirable to achieve dramatic increases in speed (linear feet per minute) at which cast product exits the machine, particularly in installations where steel cast product is intended to feed a downstream regular rolling mill (as distinct from a planetary mill) operating in tandem with the twin-belt caster. Such high-speed casting produces product with a relatively thin shell and molten interior, and the shell tends to bulge outwardly due to metallostatic head pressure of the molten center. A number of cooperative features enable high-speed, twin-belt casting: (1) Each casting belt is slidably supported adjacent to the caster exit pulley for bulge control and enhanced cooling of cast product. (2) Lateral skew steering of each belt provides an effective increase in moving mold length plus a continuity of heat transfer not obtained with prior art belt steering apparatus. (3) The exiting slab is contained and supported downstream from the casting machine to prevent bulging of the shell of the cast product, and (4) spray cooling is incorporated in the exit containment apparatus for secondary cooling of cast product.

REFERENCES:
patent: 4367783 (1983-01-01), Wood et al.
patent: 4679612 (1987-07-01), Artz et al.
Petry, C. J. et al., Paper presented at the 28th Mechanical Working and Steel Processing Conference on Oct. 26-28, 1986, Pittsburgh, pp. 205-212.

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