| Course Unit Code | 618-3024/03 |
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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 | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| HAM33 | doc. Ing. Jiří Hampl, Ph.D. |
| Summary |
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| The course focuses on the theoretical and practical knowledge of iron metallurgy and technology and their application in smelting and processing mimopecním. Emphasis is placed on understanding the ongoing processes of melting and explain the nature of vaccination and modification of cast iron. Students will learn about the physical nature of volume changes during solidification of cast iron and about the principles of technological design of castings and risers. |
| Learning Outcomes of the Course Unit |
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Acquired knowledge:
-student will be able to characterize the physico-chemical processes in iron smelting in electric furnaces.
-student will have theoretical and practical knowledge mimopecního processing of iron and technological methods of casting iron castings.
Acquired skills:
-student will be able to use their knowledge to make decisions about how to metallurgical processing and casting
-student will be able to apply theoretical knowledge to manage the process of production of iron castings
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| Course Contents |
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1.Past and present of production of cast iron. Distribution of iron according to graphite shape, mechanical and physical properties. Basic types of cast irons and their use in industry.
2.Theoretical foundations of crystallization and formation of cast iron structure. Phase diagram of iron-carbon. Effect of chemical composition and cooling rate on the microstructure. Structural diagrams of cast iron.
3. Eutectic crystallization. Effect of physicochemical state cast iron eutectic crystallization. Degree of graphitization of cast iron. Alloyed cast iron.
4.The morphology of solidification of cast irons. Linear and volumetric changes during solidification of cast irons. Volumetric shrinkage of cast iron castings. Sizing riser and gating system.
5.Auxiliary facilities for smelting iron. Cupola fonace, construction. The basics of melting process in KP. Feedstock, changes in the chemical composition of the charge. Intensification melting KP.
6. Metallurgical processing of iron in an electric induction furnace, melting principle, design, modification of the melt. Smelting iron in an electric arc furnace - changing the content of the main elements. Thermal analysis of cast iron.
7.Ladle desulfurization, desulfurization technology principle and cast iron - CaC2, Na2CO3, CaO. Method Gazal. Rotary gas furnace, holding furnace.
8.Solutions of molten metals, types of solutions, thermodynamic activity, activity coefficients, interaction coefficients.
9.Application of the laws of thermodynamics to the molten iron. The solubility of oxygen in the iron. Interaction of carbon-silicon. The use of thermodynamic relations for the EIP of melting. Measurement of the oxygen activity in cast irons.
10.Vaccination. The thermodynamic nature of vaccination, vaccination hypothesis, the effect of oxygen on the vaccination process, mechanism of action and methods of vaccination.
11.Modifications, conditions, loss of Mg. Fundamentals of Thermodynamics modification. Definitions modifying pressure. Reaction of Mg, and Ca-S-S. Deoxidation effect of Mg, Ca, Al-modifying. Control methods of modification.
12.Technology of modification. Methods of irrigation, dip, converter, continuous. Methods cored. Comparison modification methods.
13.Technological of cast iron construction castings. Principles of design in terms of quality, static, dynamic, fatigue and shock loads.
14. Defects of iron castings. Microstructural defects. Shrinkage, blow holes, bubbles, struskovitost. Inadequate mechanical and physical properties.
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| Recommended or Required Reading |
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| Required Reading: |
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[1]GOODRICH Georg. Iron Castings Enginering Handbook. 418s. American Foundry Society. Schaumburg, Illinois. 2006.ISBN 0-87433-260-5.
[2]CAMPBELL, J. Castings practice: the 10 rules of castings. Oxford: Elsevier Butterworth-Heinemann, 2007, 205 p. ISBN 07-506-4791-4.
[3]STEFANESCU, D.M. Science and Engineering of Casting Solidification. Alabama: Springer Intrnational Pubishing Switzerland 2015. ISBN 978-3-319-15692-7,ISBN 978-3-319-15693-4 (eBook)
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[1]VONDRÁK,V.a J. HAMPL a A.HANUS. Metalurgie litin-mimopecní zpracování roztavené litiny. Ostrava:VŠB-TU Ostrava,2005.ISBN 80-248-0777-7.
[2]VONDRÁK,V.a A.PAVELKOVÁ a a.HANUS.. Metalurgie litin-vtokové soustavy a nálitkování. Ostrava: VŠB-TU Ostrava,2005.ISBN 80-248-0960-5.
[3]GEDEONOVÁ,Z.a I.JELČ. Metalurgia liatin. Košice: HF-TU Košice,2000. ISBN 80-7099-516-5.
[4]ANDERSON, J. Ductile Iron: The essentials of gating and risering system design. Canada: Rio Tinto Iron & Titanium Inc., 2000.
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| Recommended Reading: |
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[1]HASSE, S. Structure of Cast Iron Alloys. Graz: SCHILE&SCHON,2008.ISBN 978-3-7949-0753-3.
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| [1]ROUČKA, Jaromír. Metalurgie litin. Brno: Vysoké učení technické v Brně, 1998. ISBN 80-214-1263-1. |
| Planned learning activities and teaching methods |
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| Lectures, Individual consultations, 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 | 15 |
| Examination | Examination | 70 | 21 |