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Key Lubrication Con...
Key Lubrication Concepts to Understand the Role of Flow, Heat Transfer and Solidification for Modelling Defect Formation during Continuous Casting
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- Ramirez Lopez, Pavel Ernesto (författare)
- RISE,MEFOS AB,Swerea MEFOS, Proc Met Dept, Casting & Flow Simulat Grp, Aronstorpsvagen 1, SE-97437 Lulea, Sweden.
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- Jalali, Pooria Nazem (författare)
- RISE,MEFOS AB,KTH Royal Institute of Technology, Sweden,Swerea MEFOS, Proc Met Dept, Casting & Flow Simulat Grp, Aronstorpsvagen 1, SE-97437 Lulea, Sweden.;KTH Royal Inst Technol, Dept Mat Sci & Engn, Brinellvagen 23, S-10044 Stockholm, Sweden.
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- Sjostrom, Ulf (författare)
- RISE,MEFOS AB,Swerea MEFOS, Proc Met Dept, Casting & Flow Simulat Grp, Aronstorpsvagen 1, SE-97437 Lulea, Sweden.
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- Jönsson, Göran (författare)
- KTH,Materialvetenskap,KTH Royal Institute of Technology, Sweden
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- Mills, Kenneth C. (författare)
- Imperial College London, UK,Imperial Coll London, Dept Mat, London SW7 2AZ, England.
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- Sohn, Il (författare)
- Yonsei University, South Korea,Yonsei Univ, Mat Sci & Engn Dept, Seoul 120749, South Korea.
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(creator_code:org_t)
- IRON STEEL INST JAPAN KEIDANREN KAIKAN, 2018
- 2018
- Engelska.
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Ingår i: ISIJ International. - : IRON STEEL INST JAPAN KEIDANREN KAIKAN. - 0915-1559 .- 1347-5460. ; 58:2, s. 201-210
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.2...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Surface defects are recurrent problems during Continuous Casting of steel due to the introduction of new grades that are often difficult to cast, as well as the everlasting pursuit for higher quality and improved yield. Accordingly, numerical modelling has become a ubiquitous tool to analyse the formation mechanisms of such defects. However, industrial application of simulations is often hampered by oversimplifications and omissions of important process details such as variations in material properties, specific casting practices or shortcomings regarding fundamental metallurgical concepts. The present manuscript seeks to create awareness on these issues by visiting key notions such as slag infiltration, interfacial resistance and Lubrication Index. This is done from a conceptual point of view based on industrial observations and numerical modelling experiences. The latter allows a re-formulation of outdated concepts and misconceptions regarding the influence of fluid flow, heat transfer and solidification on lubrication and defect formation. Additionally, the manuscript addresses common challenges and constraints that occur during industrial implementation of numerical models such as the lack of high -temperature material data for slags. Finally, the manuscript provides examples of improvements on product quality and process stability that can be achieved through a holistic approach which combines modelling with laboratory tests, experiences from operators and direct plant measurements.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- numerical modelling
- Continuous Casting
- defects
- lubrication
- powder consumption
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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