| Course Unit Code | 618-2002/02 |
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| Number of ECTS Credits Allocated | 5 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | First Cycle |
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| Year of Study * | Third Year |
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| Semester when the Course Unit is delivered | Winter Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| MIH50 | prof. Ing. Karel Michalek, CSc. |
| SAW002 | prof. Ing. Markéta Tkadlečková, Ph.D. |
| WAL0017 | Ing. Josef Walek, Ph.D. |
| Summary |
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| Subject is read with the purpose of understanding of basic theoretical and practical knowledge of methods of secondary metallurgy during treatment of liquid steel. Students will be also introduced to basic findings from the field of steel casting, namely during classic method into ingots and especially during progressive method by the help of continuous casting. |
| Learning Outcomes of the Course Unit |
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Acquired knowledge:
-student will be able to characterize the basic technologies of the secondary metallurgy and their theoretical essence
-student will be able to describe the principle and course of steel solidification together with presentation of particulate technologies of steel casting
Acquired skills:
-student will be able to use his knowledge for description of basis of theory and practice of secondary steel treatment and steel casting
-student will be able to develop his theoretical and practical findings during his further studies
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| Course Contents |
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1.Causes of Reasons of the development of methods of secondary metallurgy, its importance, dividing of methods.
2.Elements of steel, behaviour of elements during steel refining.
3.Refining of steel by the help of inert gases, effects, technologies, flotation of non-metallic inclusions by the inert gas, absorption of inclusions by the slag.
4.Gases in the steel, degassing of steel, basis, mechanism, vacuum steel refining, technological methods.
5.Steel refining by the help of synthetic slags, composition of slags, kinetics of processes.
6.Ladle furnaces, importance during steel treatment at the secondary metallurgy, dividing. Inputting of cored and Al wires into the liquid steel, importance, technology, modification of inclusions.
7.Steel casting, equipment of cast houses, characteristics of basic technologies.
8.Steel casting into ingot-moulds, top-pouring, uphill casting, steel crystallisation, structure of ingots, micro- and macro-segregation.
9.Ingots defects of killed and rimmed steel.
10.Continuous steel casting, dividing, advantages, disadvantages, construction of the CCM.
11.Secondary metallurgy, optimization of steel flowing, submerged nozzles.
12.Steel solidification in the mould, primary, secondary and tertiary cooling zone, dividing of blanks.
13.Defects of continuously cast blanks.
14.New directions at casting of blanks.
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| Recommended or Required Reading |
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| Required Reading: |
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GHOSH, A.: Secondary Steelmaking - Principles and Applications. New York, 2001, 322 p.
FRUEHAN, R. J.: The Making, Shaping and Treating of Steel, AISE Steel Foundation, 1998, 767 p. |
MICHALEK, K., SOCHA, L., ADOLF, Z., BAŽAN, J.: Rafinace a odlévání oceli. Studijní opora, VŠB-TUO, 2013, 102 s. http://www.fmmi.vsb.cz/cs/okruhy/urceno-pro/studenty/podklady-ke-studiu/studijni-opory/
ADOLF, Z.: Mimopecní rafinace oceli, VŠB-TU Ostrava, 1991, 133 s.
BÖHM, Z.: Plynulé odlévání oceli. SNTL Praha, 1992, 443 s.
GHOSH, A.: Secondary Steelmaking - Principles and Applications. New York, 2001, 322 p.
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| Recommended Reading: |
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STOLTE, G.: Secondary Metallurgy - Fundamentals Processes Applications. Düsseldorf, 2002, 216 p.
YOGESHWAR, S., TOSHIHIKO, E.: Tundish Technology for Clean Steel Production, World Scientific, 2007, 313 p. |
ŠMRHA, L.: Tuhnutí a krystalizace ocelových ingotů, SNTL Praha, 1983, 305 s.
KEPKA, M. Rafinace oceli. 1. vyd. Praha, SNTL, 1989. 211 s. |
| Planned learning activities and teaching methods |
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| Lectures, Tutorials |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 30 | 21 |
| Examination | Examination | 70 | 30 |