Optimum spray cooling in continuous slab casting process under productivity improvement

Conference proceedings article

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Publication Details

Author list: Worapradya K., Thanakijkasem P.

Publisher: Hindawi

Publication year: 2009

Start page: 120

End page: 124

Number of pages: 5

ISBN: 9781424448708

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949521213&doi=10.1109%2fIEEM.2009.5373412&partnerID=40&md5=6e84f76291a4ada5a80c34fa201877f5

Languages: English-Great Britain (EN-GB)

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Abstract

In addition to casting speed, an improper control of temperature at the strand surface and center directly affects the product quality (e.g., cracking) in the continuous slab casting. In this study, an optimal control of temperature at the surface and center is achieved by using an optimal secondary cooling rate with a consistent casting speed. To optimize the cooling rate, both a solidification model based on a finite difference technique and an objective function, which satisfies the metallurgical criteria and the resource consumption, are developed. Case studies on quality and productivity improvements are raised and searched an optimal solution by a genetic algorithm. The results show that the effective maintain of the strand temperature with low water consumption can be achieved under the increased casting speed. ฉ2009 IEEE.

Keywords

Continuous slab casting, Solidification Model