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Lecturer(s)
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Michnová Lenka, Ing. Ph.D.
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Michna Štefan, prof. Ing. PhD.
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Course content
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1. Importance of the foundry and its history, characteristics of foundry production and distribution 2. The production process nonpermanent molds and cores 3. Technology - design rule foundry technology and the choice of shaped castings. Use of advanced technologies in the production of casting parts for automobiles. 4. Modern and productive casting methods 5. Progressive Technologies offsetting forms - as investment and scraming model in-process, method C-Croning, method Shaw, etc. 6. Computer simulation programs for the casting material 7. Casting materials, properties, iron and nonferrous metals, summary and description. 8. Production of liquid metal - melt treatment and refining, modifying, vaccines, equipment for melting and casting metal, etc. 9. The nature, purpose and principle of modifying the vaccination of Al alloys and Fe alloys (the alloy), casting defects, classification of defects, corrective measures to avoid defects.
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Learning activities and teaching methods
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unspecified
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Learning outcomes
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Students will gain an overview and basics of the theory of casting of non-ferrous metals and steel. The content is focused on the properties of molten alloys, refining and purification of metal alloys, crystallization of foundry alloys, casting production processes in terms of design rules, inlet system and its calculations and computer simulation in foundry. Course contents: 1. Overview of the historical development of metal production and processing. 2. Foundry as a production process. 3. Thermodynamic system and component, alloy, solid metal phase, intermetallic phase, admixtures and impurities, polycrystalline structure, etc. 4. Basics of crystallization and segregation processes - crystallization of pure metals and alloys, micro and macrosegregation, band segregation, division of elements between liquid and solid phase, etc. 5. Mechanism and principles of melt inoculation and modification of Al alloys and cast iron. 6. Refining, purification and degassing of non-ferrous metal melts - refining procedures and methods for non-ferrous metal alloys, removal of non-metallic insoluble inclusions, exogenous and endogenous inclusions. 7. Methods of deoxidation of steels - deoxidation with aluminum, titanium, calcium, lanthanides, precipitation deoxidation of more elements, extraction deoxidation, deoxidation in vacuum, etc. 8. Influence of sulfur (and sulphides) and carbon on steel properties, desulphurisation of steel, influence of other impurities on steel properties. Defects in castings. 9. Secondary metallurgy in steels - division, principle and application of individual methods of secondary metallurgy, melt refining with inert gases, use of slags, etc. 10. Production process of castings and basic design rules in the production of castings. 11. Inlet system and its calculation. Fittings and determination of their size. Forming frames. 12. Computer simulation programs for material casting as a modern tool for obtaining quality castings.
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Prerequisites
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Assessment methods and criteria
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unspecified
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Recommended literature
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B. BEDNÁŘ. Technologičnost konstrukce odlitků. UJEP 2005..
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I. NOVÁ, I. NOVÁKOVÁ, J. BRADÁČ, J. TECHNOLOGIE I. - slévání a svářování, 2006.
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I. NOVÁ. Teorie slévání I. Liberec 2006. 2006.
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J. KOREŇ, A. PRIBULOVÁ. Vybrané kapitoly zo zlievárenských technológií..
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J. PLACHÝ, M. NĚMEC. Metalurgie a technologie slévárenských slitin. 1993.
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NOVOTNÝ, J. A KOL. Technologie I. Slévárenství, tváření a povrchové úpravy.
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Š. Michna a kol. Encyklopedie hliníku,kapitola 4, 6, 7, 200. 2005.
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Š. Michna, I. Nová. Technologie a zpracování kovových materiálů, 2008. 2008.
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T. GRÍGEROVÁ, T. a kol. Zlivárenstvo neželezných kovov. 1988.
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Z. BERÁNEK. Slévárenství. 1997.
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