Título

REDUCING THE INTERMIX ZONE THROUGH THE USE OF SEPARATOR PLATE DURING THE FLY TUNDISH PROCESS WITH GRADE EXCHANGE AT TERNIUM BR

REDUCING THE INTERMIX ZONE THROUGH THE USE OF SEPARATOR PLATE DURING THE FLY TUNDISH PROCESS WITH GRADE EXCHANGE AT TERNIUM BR

Autoria

Ramos, Laryssa de Jesus

DOI

10.5151/2594-5300-34327

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Resumo

IN THE PROCESS OF CONTINUOUS CASTING, AS WELL AS IN THE ENTIRE STEEL PRODUCTION CHAIN, WE CONSTANTLY SEEK TO INCREASE PRODUCTIVITY, ADDING TO THIS A HIGHER QUALITY OF PRODUCTS AND LOWER PRODUCTION COSTS. AS AN ALTERNATIVE TO INCREASE PRODUCTIVITY, MIXTURES OF DIFFERENT TYPES OF STEEL ARE FREQUENTLY OCCURRING WITHIN THE SAME CASTING SEQUENCE, THIS MIXTURE CAN OCCUR IN THE TUNDISH AND IN THE EXECUTION OF FLYING TUNDISH WITH GRADE CHANGE IN THE MOLD. IN BOTH CASES, SLABS CONTAINING DIFFERENT STEEL QUALITIES ARE GENERATED, WHICH CAN REACH SIGNIFICANT VOLUMES WITH THE PRODUCTION OF THESE MIXING SLABS, REPRESENTING SIGNIFICANT LOSSES FOR COMPANIES. FOR THIS MIXING PROCEDURE TO RESULT IN COST REDUCTION, IT IS NECESSARY THAT THE LOSS OF STEEL GENERATED IN THE MIXTURE AND REWORK ARE MINIMIZED. THIS WORK EVALUATED THE USE OF SEPARATOR PLATE IN THE MOLD OF THE CONTINUOUS CASTING MACHINE, ALLOWING AN IMPROVEMENT IN THE PRACTICE OF THE FLY TUNDISH WITH GRADE CHANGE, WHICH MADE IT POSSIBLE TO INCREASE THE NUMBER OF HEATS IN THE SEQUENCE, REDUCING QUALITATIVE FALLS DUE TO LESS MIXING SLABS WITH GRADE CHANGE IN THE MOLD, IN ADDITION TO REDUCING THE MACHINE STOPPAGE TIME.

 

IN THE PROCESS OF CONTINUOUS CASTING, AS WELL AS IN THE ENTIRE STEEL PRODUCTION CHAIN, WE CONSTANTLY SEEK TO INCREASE PRODUCTIVITY, ADDING TO THIS A HIGHER QUALITY OF PRODUCTS AND LOWER PRODUCTION COSTS. AS AN ALTERNATIVE TO INCREASE PRODUCTIVITY, MIXTURES OF DIFFERENT TYPES OF STEEL ARE FREQUENTLY OCCURRING WITHIN THE SAME CASTING SEQUENCE, THIS MIXTURE CAN OCCUR IN THE TUNDISH AND IN THE EXECUTION OF FLYING TUNDISH WITH GRADE CHANGE IN THE MOLD. IN BOTH CASES, SLABS CONTAINING DIFFERENT STEEL QUALITIES ARE GENERATED, WHICH CAN REACH SIGNIFICANT VOLUMES WITH THE PRODUCTION OF THESE MIXING SLABS, REPRESENTING SIGNIFICANT LOSSES FOR COMPANIES. FOR THIS MIXING PROCEDURE TO RESULT IN COST REDUCTION, IT IS NECESSARY THAT THE LOSS OF STEEL GENERATED IN THE MIXTURE AND REWORK ARE MINIMIZED. THIS WORK EVALUATED THE USE OF SEPARATOR PLATE IN THE MOLD OF THE CONTINUOUS CASTING MACHINE, ALLOWING AN IMPROVEMENT IN THE PRACTICE OF THE FLY TUNDISH WITH GRADE CHANGE, WHICH MADE IT POSSIBLE TO INCREASE THE NUMBER OF HEATS IN THE SEQUENCE, REDUCING QUALITATIVE FALLS DUE TO LESS MIXING SLABS WITH GRADE CHANGE IN THE MOLD, IN ADDITION TO REDUCING THE MACHINE STOPPAGE TIME.

Palavras-chave

Grade transition; Separator plate; Fly tundish with change of degree; Continuous casting.

Grade transition; Separator plate; Fly tundish with change of degree; Continuous casting.