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J. A. Spim

Researcher at Universidade Federal do Rio Grande do Sul

Publications -  23
Citations -  665

J. A. Spim is an academic researcher from Universidade Federal do Rio Grande do Sul. The author has contributed to research in topics: Continuous casting & Casting (metalworking). The author has an hindex of 13, co-authored 23 publications receiving 610 citations. Previous affiliations of J. A. Spim include State University of Campinas.

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Mathematical modeling and optimization strategies (genetic algorithm and knowledge base) applied to the continuous casting of steel

TL;DR: Using the numerical model linked to a search method and the knowledge base, results can be produced for determining optimum settings of casting conditions, which are conducive to the best strand surface temperature profile and metallurgical length.
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Modeling of solidification in twin-roll strip casting

TL;DR: In this article, a numerical model for the two-dimensional solidification problem in the twin-roll continuous casting system was presented by using a finite difference technique, and the thermal analysis results gave valuable insight into the thermal characteristics of solidification and processing for the strip casting.
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The use of artificial intelligence technique for the optimisation of process parameters used in the continuous casting of steel

TL;DR: In this paper, the authors present an algorithm, which incorporates heuristic search techniques for direct application in metallurgical industries, particularly those using continuous casting process for the production of steel billets and slabs.
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Numerical modeling and optimization of zone refining

TL;DR: In this article, a numerical model capable of predicting the solute redistribution at any stage of a multi-pass zone refining is proposed, which can establish an optimum combination of initial long zones followed by shorter ones, providing improvement in purification efficiency.
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Evaluation of heat transfer coefficients along the secondary cooling zones in the continuous casting of steel billets

TL;DR: In this paper, heat transfer coefficients along different cooling zones of a continuous caster billet machine were determined during casting of low and medium carbon steels, and the effects of casting parameters, such as machine characteristics, the ingot dimension, mold, sprays zones, radiant cooling, melt composition, and casting temperature were correlated with heat transfer coefficient.