Lectures
1. Introduction to the subject. Steelmaking in Czech Republic and in the world.
2. Theory of slags. Basic steelmaking reactions. Mixers.
3. Refractory materials used at steelmaking, material properties. Possibilities of evaluation of properties and resistance of refractory materials to molten metals and slags.
4. Steelmaking in SM furnaces. Process variants.
5. Steelmaking in oxygen LD converters, design, course of oxidation of individual elements.
6. Steelmaking in bottom blown oxygen converters, course of individual reactions.
7. Converters with combined blowing.
8. Steelmaking in T-furnaces, furnace design, production technology.
9. Steelmaking in EAF and in induction furnaces, design, production technology.
10. Deoxidation of steel, deoxidation methods. Alloying of steel, role of ferro-alloys. Cleanness of steel.
11. Secondary processing of steel, vacuum refining, refining by inert gases.
12. Casting of steel, equipment of cast houses, classification of steels by degree of deoxidation, crystallization of steel, regularities of solidification.Defects of ingots.Segregation phenomena.
13. Numerical simulation of solidification of ingots (use the ProCAST - the influence of various factors on the process of solidification and the occurrence of segregation).
14. Continuous casting of steel, division of production, benefits, disadvantages, design of equipment. Tundish metallurgy. New directions of casting of thin continuously cast blanks.
Exercises
1. Introductory exercise. Familiarisation with the subject. Steelmaking in Czech Republic and in the world.
2. Standards of steels.
3. Slags, ion and molecular theory, role of slags at steelmaking and processing of steels.
4. Basic steelmaking reactions, decarburisation, dephosphorisation, desulphurisation, calculations.
5. Material and thermal balance of LD converter, metal loss, yield of steel.
6. Plant tour at ArcelorMittal Ostrava, a.s., T-furnaces, LF, CCM.
7. Calculation of the main dimensions of EAF, oxidation and reduction periods in EAF.
8. Plant tour at – VÍTKOVICE HEAVY MACHINERY, a.s. + Evraz Vítkovice Steel, a.s.
9. Deoxidation, alloying, calculation of alloying elements.
10. Secondary processing of steels.
11. Crystallisation of steels, classification of CCM, structural elements, defects of continuously cast blanks.
12. Laboratory experiments of steel solidification (familiar with the problem, the division of tasks, preparation and realization of simulation of solidification and crystallization and evaluation results).
13. Perspectives of continuous casting of steel.
14. Evaluation of exercises, credit.
1. Introduction to the subject. Steelmaking in Czech Republic and in the world.
2. Theory of slags. Basic steelmaking reactions. Mixers.
3. Refractory materials used at steelmaking, material properties. Possibilities of evaluation of properties and resistance of refractory materials to molten metals and slags.
4. Steelmaking in SM furnaces. Process variants.
5. Steelmaking in oxygen LD converters, design, course of oxidation of individual elements.
6. Steelmaking in bottom blown oxygen converters, course of individual reactions.
7. Converters with combined blowing.
8. Steelmaking in T-furnaces, furnace design, production technology.
9. Steelmaking in EAF and in induction furnaces, design, production technology.
10. Deoxidation of steel, deoxidation methods. Alloying of steel, role of ferro-alloys. Cleanness of steel.
11. Secondary processing of steel, vacuum refining, refining by inert gases.
12. Casting of steel, equipment of cast houses, classification of steels by degree of deoxidation, crystallization of steel, regularities of solidification.Defects of ingots.Segregation phenomena.
13. Numerical simulation of solidification of ingots (use the ProCAST - the influence of various factors on the process of solidification and the occurrence of segregation).
14. Continuous casting of steel, division of production, benefits, disadvantages, design of equipment. Tundish metallurgy. New directions of casting of thin continuously cast blanks.
Exercises
1. Introductory exercise. Familiarisation with the subject. Steelmaking in Czech Republic and in the world.
2. Standards of steels.
3. Slags, ion and molecular theory, role of slags at steelmaking and processing of steels.
4. Basic steelmaking reactions, decarburisation, dephosphorisation, desulphurisation, calculations.
5. Material and thermal balance of LD converter, metal loss, yield of steel.
6. Plant tour at ArcelorMittal Ostrava, a.s., T-furnaces, LF, CCM.
7. Calculation of the main dimensions of EAF, oxidation and reduction periods in EAF.
8. Plant tour at – VÍTKOVICE HEAVY MACHINERY, a.s. + Evraz Vítkovice Steel, a.s.
9. Deoxidation, alloying, calculation of alloying elements.
10. Secondary processing of steels.
11. Crystallisation of steels, classification of CCM, structural elements, defects of continuously cast blanks.
12. Laboratory experiments of steel solidification (familiar with the problem, the division of tasks, preparation and realization of simulation of solidification and crystallization and evaluation results).
13. Perspectives of continuous casting of steel.
14. Evaluation of exercises, credit.