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논문 기본 정보

자료유형
학술저널
저자정보
Antariksh Gupta (SAIL) Rakesh Kumar (Indian Institute of Technology (ISM)) Rajeev Kumar Singh (SAIL)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.28 No.5
발행연도
2022.5
수록면
1,246 - 1,256 (11page)
DOI
10.1007/s12540-021-01014-6

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초록· 키워드

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With globalization and increased competitiveness in the steel market, industries are required to produce quality steel at a reasonablecost. This necessitates the introduction of either new manufacturing techniques, or to improve quality and yield withthe existing processes. It is well established that slags entrapped by the vortexing phenomenon during steelmaking processesare responsible for causing quality issues and lowering the yield of steel produced. Measures are taken to end teeming fromtundish before initiation of vortexing to prevent slag entrainment. This premature end of teeming is an inevitable yield lossthat needs to be minimized. The present work aims to increase the efficiency of the steelmaking process by control techniquesfor minimizing tundish slag entrainment during tundish teeming. Experimental and mathematical simulations with differenttundish configurations have been carried out to analyze the initiation of slag vortexing. The mathematical simulation usesmultiphase models with a steel?slag?air system while the physical simulation uses a water?paraffin oil system to replicatethe steel?slag system. It has been observed that the presence of higher turbulence and a thicker slag layer over liquid steelincreases vortex initiation height (Hcr). An empirical correlation between these parameters with Hcrhas been developed tooptimize the end of teeming and increase process yield.

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