618-3031/01 – Technology of foundry alloys (TSS)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 7 |
| Subject guarantor | doc. Ing. Petr Lichý, Ph.D. | Subject version guarantor | doc. Ing. Petr Lichý, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 2 | Semester | winter |
| | Study language | English |
| Year of introduction | 2020/2021 | Year of cancellation | |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
-student will be able to characterize metallic materials for the manufacture of castings.
-student will be able to formulate principles and metallurgical processing of foundry alloys.
-student will be able to describe the material properties for the type of casting.
- student will know the process and methodology of complicated and time-consuming tests ratings liquid phase metal materials based on visual methodology.
Teaching methods
Lectures
Individual consultations
Tutorials
Other activities
Summary
The course is aimed at deepening knowledge on alloys of ferrous and nonferrous metals. It deals with the classification properties of metallic alloys and their analysis using different methodologies. The intention is to show the wider context of the production technology of metal alloys and their useful properties.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Zkouška: Písemný test. Ústní zkouška.
E-learning
http://www.fmmi.vsb.cz/cs/urceno-pro/studenty/podklady-ke-studiu/studijni-opory
Other requirements
Elaboration of semestral projects and completion of the interim tests
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. The division of foundry alloys for castings. Iron Cast. Steels for castings. Alloys of non-ferrous metals. Mechanical, physical, and technological properties of foundry casting alloys.
2. The division of cast irons, basic types and their application in industry. Equilibrium diagram of iron-carbon. The basic chemical composition, microstructure and foundry properties of cast iron with lamellar graphite.
3. Incoming raw materials and furnaces for melting of iron cast. Cupola furnace. Processes of melting in the CF, Melting of iron casts in an electric induction furnace and in an electric arc furnace. Rotary gas furnace. Holding furnace.
4. Crystallization of iron cast, eutectic of crystallization. The mechanism and kinetics of graphitization. Influence of crystallization of cast iron. Theory and technology of cast iron inoculation.
5. Foundry cast iron properties. Volumetric shrinkage of cast iron castings. The module of casting. Sizing of riser and gating system.
6. Metallurgical processing of spheroidal graphite cast iron. Manufacturing methods and technology modifications. Thermodynamics and kinetics of modification.
7. Steels for castings. Incoming raw materials and auxiliary facilities for the production of steel castings. Physical, mechanical and casting properties of steels for castings.
8. Melting of steels in electric arc furnace. Oxidation and reduction melting period. Vacuum degassed steel. Oxygen, sulfur, hydrogen, nitrogen and inclusions in steels.
9. Casting technology of steel castings. Gating systems, the metal flow, casting speed. Reoxidation processes of casting of steel castings.
10. Non-ferrous alloy castings. Aluminum alloy, silumin Al-Si, Al-Cu duralumin. Magnesium alloy. Bronze, brass. Mechanical, physical, and technological and foundry properties non-ferrous alloys.
11. Metallurgical processing of non-ferrous alloys. Furnaces for melting and refining of the melt. Influence of microstructure, inoculation. Degassing of melts.
12. Gravity casting of non-ferrous metals into permanent and non-permanent forms, precision casting. Centrifugal casting.
13. Low-pressure die casting, vacuum and pressure die casting in metal molds. Casting with crystallization under pressure and in semi-solid state. Heat treatment of castings.
14. Control and analytical methods in metallurgy, foundry alloys. Thermal analysis.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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