Continuous metal casting method and plant for performing same

B - Operations – Transporting – 22 – D

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B22D 11/00 (2006.01) B22D 11/047 (2006.01) B22D 11/126 (2006.01) B22D 11/14 (2006.01)

Patent

CA 1197661

CONTINUOUS METAL CASTING METHOD AND PLANT FOR PERFORMING SAME ABSTRACT OF THE DISCLOSURE The continuous metal casting method includes continuously forming a portion of an ingot in the open-ended mold of the pri- mary cooling zone under gauge pressure, with a cold junction being formed at the end of the portion. The portion of the ingot is in- termittently drawn into the secondary cooling zone, to produce the ingot subdivided by the cold junctions into portions of a required length. In the intervals between the successive drawing cycles, the ingot is treated in the secondary cooling zone to effect constrained shrinkage, while producing in the cold junct- ion areas a bending strain of a value not short of the yield strength of the metal. The plant includes a vessel for the metal to be cast, communicating with the open-ended mold of the primary cooling zone. Arranged-successively in the path of the ingot in the secondary cooling zone, downstream of the primary cooling zone, and a mechanism for drawing the ingot from the open-ended mold, and a mechanism for dividing the ingot into portions of the required length. The open-ended mold incorporates means for addi- tional withdrawal of heat from the end face area of the portion of the ingot which is being formed in the mold. - 1 -

397317

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