618-1811/01 – Steel Castings (OCO)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 6 |
| Subject guarantor | Ing. Tomáš Válek, Ph.D. | Subject version guarantor | Ing. Tomáš Válek, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory |
| Year | 2 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2012/2013 | Year of cancellation | 2020/2021 |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Subject objectives:
- the student will be able to characterize the systemization of steels for castings
- the student will know the basic technological–metallurgical procedures of producing unalloyed and alloyed steels in electric arc furnaces
- the student will know basic technological-metallurgical procedures of producing unalloyed and alloyed steels in electric induction furnaces
- the student will be able to suggest and give reasons for the method of desoxidation, refining and alloying in steelmaking for foundry
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Other activities
Summary
The subject focuses on theoretical and practical aspects connected with the systemization of steelmaking for foundry in electric arc and induction furnaces. Special attention is paid to technological-metallurgical connections when producing groups of different quality using various types of ceramic linings. Ways and possibilities of steel processing in the area of secondary metalurgy currently used in steel foundries are also presented. Some possibilities of making use of cost analysis for production management are suggested.
Compulsory literature:
Recommended literature:
Recommended literature:
[1] BROŽ a kol., Iron metalurgy, SNTL, Praha 1988, 460 s.
[2] BENDA, M., Elektrometalurgie (Electrometallurgy), skriptum (Teaching material) VŠB-TU Ostrava 1989, 250 s.
[3] FREMUNT, P., ŠIMON, J. Tavení oceli v elektrických pecích (Steel Melting in Electric Furnaces), SNTL, Praha 1984.
[4] KEPKA, M., Rafinace oceli (Steel Refining), SNTL, Praha 1989, 211 s.
[5] ELBEL, T., HAVLÍČEK, F., JELÍNEK, P., LEVÍČEK, P., ROUS, J., STRÁNSKÝ, K., Vady odlitků ze slitin železa (klasifikace,příčiny a prevence), (Castings Defects from Ferro-alloys / classification, causes and prevention/). MATECS, Brno 1992, 340 s.
[6] MYSLIVEC, T., Fyzikálně chemické základy ocelářství (Physical-chemical Bases of Steelmaking). Praha: SNTL, 1971, 445 s.
Way of continuous check of knowledge in the course of semester
The way of continuous checking of knowledge:
Two written pieces of semester work and their defence in the framework of seminars during tuition.
E-learning
Contacts for the English version: http://staff.vsb.cz/
Other requirements
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Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1) Introduction to history of ironmaking till present times. Basic parameters of electric arc furnaces and electric induction furnaces.
2) Fundaments of thermodynamics of steelmaking processes. Solutions of molten metals, non-metals and gases.
3) Norms and assortment of steels for castings.
4) Structural steel for castings.
5) Special steels for stainless castings.
6) Special steels for castings resistant to wear.
7) Electrical and thermal mode of operation of electric arc furnace (EAF). Linings of electric arc furnaces and ramming mass for electric induction furnaces medium frequency (EIF).
8) Production of unalloyed steels for castings in basic electric arc furnaces (EAF). Development of individual technological-metallurgical phases.
9) Production of alloyed steels for castings in basic electric arc furnaces (EAF). Function of main thermodynamic conditions of metallurgical processes.
10) Production of steel in acidic EAF. Intensification of production of steel in EAF.
11) Energy mode of operation of electric induction medium frequency furnace (EIF). Production of unalloyed and alloyed steels in EIF.
12) Deoxidation of steel in ladle and its pouring.
13) Possibilities of secondary metallurgy in steel foundries.
14) Some possibilities of use of cost analysis for management of production of steel.
Practikal:
1) Occupational safety training. Tour at the FMME laboratories, scientific-research activities. Specification of two semestral tasks.
2) Raw materials for production of steels for castings, auxiliary materials.
3) Calculations of mass of the charge, of metallic and non-metallic additions, loss of alloying
elements in electric arc furnace (EAF) and in electric induction medium frequency
furnace (EIF).
4) Example of technological process for melting of alloyed steel in electric induction medium frequency furnace (EIF).
5) Monitoring of practical course of melting in EIF in the laboratories of the Department of foundry industry FMME TU-VŠB in Ostrava.
6) Seminar – selected questions related to production of steels for castings in EIF. Delivery of the first report on semestral tasks.
7) Monitoring of practical course of melting in vacuum electric induction medium frequency furnace, inspection of equipment of plasma furnace and equipment for electro-slag remelting (ESR) at the pilot plant of the Material and metallurgical research llc.
8) Monitoring of practical course of melting in electric arc furnace (EAF) in foundry shop.
9) Seminar – selected questions related to production of steels for castings in EAF.
10) Course of technological procedure of production of chromium-nickel steel stabilised by titanium and niobium in EAF.
11) Reading room – selection and processing of topical literary sources from the field of metallurgy of production of steels for castings.
12) Monitoring of practical course of processing of melts by secondary metallurgy at the EVRAZ VÍTKOVICE STEEL a.s.
13) Seminar – presentation of results of bibliographic search and study of literature.
14) Delivery and evaluation of reports. Credits.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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