Title

EFFECT OF A DUMMY PASS ON ROLL FORCES AND NB PRECIPITATION

EFFECT OF A DUMMY PASS ON ROLL FORCES AND NB PRECIPITATION

Authorship

Silva, Melina Gamis da; Ventura, Harison da Silva; Araujo, Fabio de Oliveira; Cunha, Raphael Alexsander Ribeiro da; Lino, Roney Eduardo

DOI

10.5151/2594-5297-35033

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Abstract

FOR THE DEVELOPMENT OF THE WORK, DATA WERE COLLECTED FROM INDUSTRIAL ROLLING MILLS AT COMPANHIA SIDERúRGICA NACIONAL (CSN) IN ORDER TO COLLECT PROCESSING PARAMETERS. IN THE PRESENT WORK, THE EFFECTS OF ROLLING WITH DUMMY PASS ON ROUGHING IN NB MICROALLOYED STEEL, FOR THIS, DATA FROM USUAL PROCESSING WITH DIFFERENT NUMBERS OF PASSES AND PROCESSING WITH A DUMMY PASS WERE CONSIDERED TO ANALYZE THE INFLUENCES OF THESE CONFIGURATIONS ON THE REDUCTION PROFILES AND NIOBIUM PRECIPITATION. THE RESULTS POINTED TO A SIGNIFICANT IMPACT ON THE PERCENTAGE REDUCTION AND INCREASE IN LAMINATION LOAD FOR LAMINATIONS WITH A DUMMY PASS. THE SIMULATIONS INDICATED SIMILAR BEHAVIOR BETWEEN THE NIOBIUM PRECIPITATION OF THE STANDARD ROLLING AND DUMMY CASES

 

FOR THE DEVELOPMENT OF THE WORK, DATA WERE COLLECTED FROM INDUSTRIAL ROLLING MILLS AT COMPANHIA SIDERúRGICA NACIONAL (CSN) IN ORDER TO COLLECT PROCESSING PARAMETERS. IN THE PRESENT WORK, THE EFFECTS OF ROLLING WITH DUMMY PASS ON ROUGHING IN NB MICROALLOYED STEEL, FOR THIS, DATA FROM USUAL PROCESSING WITH DIFFERENT NUMBERS OF PASSES AND PROCESSING WITH A DUMMY PASS WERE CONSIDERED TO ANALYZE THE INFLUENCES OF THESE CONFIGURATIONS ON THE REDUCTION PROFILES AND NIOBIUM PRECIPITATION. THE RESULTS POINTED TO A SIGNIFICANT IMPACT ON THE PERCENTAGE REDUCTION AND INCREASE IN LAMINATION LOAD FOR LAMINATIONS WITH A DUMMY PASS. THE SIMULATIONS INDICATED SIMILAR BEHAVIOR BETWEEN THE NIOBIUM PRECIPITATION OF THE STANDARD ROLLING AND DUMMY CASES

Keywords

Nb microalloyed steels; Computational Model; Dummy, Roughing; Hot strip rolling

Nb microalloyed steels; Computational Model; Dummy, Roughing; Hot strip rolling