| Course Unit Code | 618-3003/03 |
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| Number of ECTS Credits Allocated | 6 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 * | First Year |
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| Semester when the Course Unit is delivered | Summer 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 | |
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| Prerequisities | Course Unit Code | Course Unit Title |
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| 618-3001 | Theory Processes in the Production of Iron and Steel |
| Name of Lecturer(s) | Personal ID | Name |
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| SAW002 | prof. Ing. Markéta Tkadlečková, Ph.D. |
| Summary |
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The subject is focused and described how the theoretical bases as well as technological applications oxidation processes occurring during the production of steel by acid or alkaline manner, then the issue of deoxidation and steel cleanliness.
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| Learning Outcomes of the Course Unit |
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To provide students the theoretical basis of steel processes, explain the technological applications of steel in converters, in tandem and SM furnaces and apply knowledge of deoxidation of steel and clean steel technology practice.
Acquired knowledge:
- student will be able to characterise ...
Acquired skills:
-student will be able to use his knowledge for ...
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| Course Contents |
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1. Overview, significance and perspective of steel production. - Historical development of steel production. – Distribution of steel and steel products.
2. Physico-chemical nature of steel making under acidic and alkaline conditions. – Refractories used in steel aggregates. – Production of steel in LD converters. – The characteristics of the converter.
3. Charge, progress of refine processes, oxygen blowing mode. – Steel making lime – physical-chemical properties. – Slag mode during heat.
4. Thermal mode during heat. – Static and dynamic control model of melting in the LD converter. – Processing of pig iron with a high content of phosphorus (processes: OLP, LD-P, PL, KALDO, Rotor).
5. Steelmaking in the bottom blowing converters. – Process OBM (Q-BOP), OXYVIT. – Converter characteristics.
6. Nozzles, the thermal protection of nozzles, blowing media. – Charge. – Refining processes – differences against LD converters.
7. Slag creating and its importance. – Comparison of OBM and LD converter. – Steelmaking in tandem furnaces.
8. Development of tandem furnace and its construction. – Charge and technology of heat control. – Oxygen blowing, heat and slag mode.
9. Advantages and disadvantages of tandem furnaces. – Steelmaking process in SM furnaces. – Historical significance, furnace characteristics, variants of process.
10. Pig iron mixers. – Steel deoxidation, physico-chemical nature and significance of steel deoxidation, overview of methods. – Steel deoxidation and alloying.
11. Clotting deoxidation of steel. – Diffuse deoxidation. – Deoxidation of steel by synthetic slag.
12. Vacuum carbon deoxidation of steel. – Non-metallic inclusions in steel, distribution of non-metallic inclusions.
13. Oxidic and sulphidic inclusions, nitrides, carbides. – Changes in chemical composition and shape of inclusions depending on the Al content.
14. Inclusions modification. – Coagulation and coalescence and flotation of inclusions in steel. |
| Recommended or Required Reading |
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| Required Reading: |
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[1] FRUEHAN, R. J., ed. The making, shaping and treating of steel [CD-ROM]. 11th ed. Pittsburgh: AISE Steel Foundation, c1998. ISBN 0-930767-02-0.
[2] www.steeluniversity.org
[3] GHOSH, A. a A. CHATTERJEE. Ironmaking and steelmaking: theory and practice. New Delhi: PHI Learning, 2011. ISBN 978-81-203-3289-8.
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[1] ADOLF, Z. Technologie výroby oceli v konvertorech. Studijní opora k předmětu. Ostrava: Vysoká škola báňská - Technická univerzita Ostrava, 2013. Dostupná z www: http://katedry.fmmi.vsb.cz/Opory_FMMI/618/618-CD-Technologie-vyroby-oceli-v-konvertorech.pdf
[2] PARMA, Václav. Ocelářství I [Parma, 1979]. Ostrava: Vysoká škola báňská, 1979.
[3] PARMA, V. Ocelářství II [Parma, 1980]. Ostrava: Vysoká škola báňská, 1980.
[4] GHOSH, A. a A. CHATTERJEE. Ironmaking and steelmaking: theory and practice. New Delhi: PHI Learning, 2011. ISBN 978-81-203-3289-8.
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| Recommended Reading: |
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| [1] Papers in journals and conference proceedings. |
[1] Brož, L.: Hutnictví železa, SNTL Praha, 1988, 464 s.
[2] Články v odborném tisku, příspěvky na konferencích, výzkumné zprávy. |
| Planned learning activities and teaching methods |
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| Lectures, Tutorials, Project work, Other activities |
| 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 |