| Course Unit Code | 618-3006/03 |
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| Number of ECTS Credits Allocated | 7 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | Second Cycle |
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| Year of Study * | Second 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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| Co-requisities | Course Unit Code | Course Unit Title |
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| 618-3005 | Secondary Metallurgy |
| Name of Lecturer(s) | Personal ID | Name |
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| BAZ50 | prof. Ing. Jiří Bažan, CSc. |
| MIH50 | prof. Ing. Karel Michalek, CSc. |
| SAW002 | prof. Ing. Markéta Tkadlečková, Ph.D. |
| Summary |
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| Subject is read with the purpose to understand the basic regularities and processes proceeding at steel casting, solidification and crystallization of steel (by the help of practical exercises), the conditions of homogenous and heterogeneous nucleation of crystals, the micro-segregate and macro-segregate processes, the defects of ingots and continuously cast blanks, the theoretical and technological aspects at steel casting into the ingot moulds as well as on the continuous casting machine. |
| Learning Outcomes of the Course Unit |
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- student will be able to demonstrate basic regularities proceeding at steel casting, solidification and crystallization of steel. Student will be practice this knowledge due to practical exercises in the Department's lab.
- student will be able to formulate micro-segregate and macro-segregate processes in steel
- student will be able to characterize defects of ingots and continuously cast blanks
- student will know basic possibilities of simulations of ingots' solidification by the ProCast software and the possibilities of utilization of these simulations in the plant conditions.
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| Course Contents |
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1. Equipment of cast houses. Classification of steels by degree of deoxidation, killed steel, semi- killed steel and rimming steel.
2. Refractory materials used at casting of steel, material properties. Possibilities of evaluation of properties and resistance of refractory materials to molten metals and slags.
3. Casting of steels into ingot-moulds, top pouring, uphill casting. Behaviour of steel in a ladle.
4. Crystallisation of steel. Solidification of steel, regularities, solidification of the ingot crop end.
5. Structure of ingots made of killed and rimming steel.
6. Numerical simulation of ingot's solidification (utilization of ProCAST software - influence of various factors on the solidification process and segregations).
7. Micro-segregation, macro-segregation.
8. Ingots defects of killed and rimmed steel.
9. Casting of large ingots. Cleanness and quality of the ingots, defects. Process VIC (Vítkovice Ingot Casting).
10. Continuous casting of steel, division, benefits, disadvantages, economy.
11. Design of CCM equipment. Classification of CCM, vertical, horizontal.
12. Primary, secondary and tertiary cooling zone. Solidification of steel in mould, influencing factors.
13. Tundish metallurgy. Defects of continuously cast blanks.
14. Perspectives, new directions at casting of thin blanks.
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| Recommended or Required Reading |
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| Required Reading: |
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[1] FLEMINGS, M.C.: Solidification Processing. 1st ed., McGraw-Hill, 1974, 364 p.
[2] IRVING, W.R.: Continuous Casting of Steel. Institute of Materials, 1993, 207 p.
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[1] BAŽAN, J. Lití a krystalizace oceli. Studijní opora k předmětu. 2008, 157 s.
[2] ŠMRHA, L. Tuhnutí a krystalizace ocelových ingotů. 1. vyd. Praha: SNTL, 1983, 305 s.
[3] BÖHM, Z., a kol. Plynulé odlévání oceli. 1. vyd. Praha: SNTL, 1992, 443 s.
[4] YOGESHWAR, S., TOSHIHIKO, E.: Tundish Technology for Clean Steel Production. World Scientific, 2007, 313 p.
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| Recommended Reading: |
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[1] YOGESHWAR, S., TOSHIHIKO, E. Tundish Technology for Clean Steel Production. World Scientific, 2007, 313 p. ISBN 9812706216.
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[1] DOLEJŠÍ, Z. aj.: Plynulé odlévání oceli. Poradenská příručka 42/1. TEVÚH Praha, 1987
[2] DOLEJŠÍ, Z. aj.: Plynulé odlévání oceli. Poradenská příručka 42/2. TEVÚH Praha, 1988
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| Planned learning activities and teaching methods |
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| Lectures, Seminars, Individual consultations, Tutorials, Experimental work in labs |
| 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 |