M. Manish, P. Tripathi, Thayappa Hosahali, D. S. Kumar, Ravishekar Konangi
{"title":"Improvement in steel cleanliness of central strand in billet caster","authors":"M. Manish, P. Tripathi, Thayappa Hosahali, D. S. Kumar, Ravishekar Konangi","doi":"10.1080/03019233.2023.2180211","DOIUrl":null,"url":null,"abstract":"ABSTRACT JSW Steel, Vijayanagar works operates a 44 T, eight-strand billet caster for continuous casting. Such large volume tundish has large differences between the central and the end strands from the shroud which affects the cleanliness and solidification between different strands. With an aim to improve the steel cleanliness in central strands, water modelling studies were carried out in a 0.25-scale perspex water model. Different configurations of dams were studied under steady and unsteady state conditions. The combination of the wedge and V-shaped dam configuration resulted in increasing the mean residence time of the central strand without affecting the flow behaviour of the last strands. Residence time at central strands increased by 15% and does not affect the vortex formation height. It was further validated on a plant scale tundish. Plant trials demonstrated a reduction in inclusion area percentage by 21% confirming the improved steel cleanliness in central strands.","PeriodicalId":14753,"journal":{"name":"Ironmaking & Steelmaking","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ironmaking & Steelmaking","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/03019233.2023.2180211","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
ABSTRACT JSW Steel, Vijayanagar works operates a 44 T, eight-strand billet caster for continuous casting. Such large volume tundish has large differences between the central and the end strands from the shroud which affects the cleanliness and solidification between different strands. With an aim to improve the steel cleanliness in central strands, water modelling studies were carried out in a 0.25-scale perspex water model. Different configurations of dams were studied under steady and unsteady state conditions. The combination of the wedge and V-shaped dam configuration resulted in increasing the mean residence time of the central strand without affecting the flow behaviour of the last strands. Residence time at central strands increased by 15% and does not affect the vortex formation height. It was further validated on a plant scale tundish. Plant trials demonstrated a reduction in inclusion area percentage by 21% confirming the improved steel cleanliness in central strands.
期刊介绍：
Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.
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