Description:

Properties of liquid alloys. Crystallization of foundry alloys. Volume changes during cooling and solidification, and their consequences. Principles of Feeding. Controlled solidification. Interaction the metal with the mold. Defects resulting from shrinkage. Cast iron with lamellar graphite. Cast iron with spheroidal graphite. Malleable cast iron. Cast iron with vermicular graphite. Iron for special use. Metallurgy of steel. Metallurgy of aluminum alloys, magnesium and titanium. Alloys of copper.

Contents:

1. Foundry production in the Czech Republic and worldwide
a) Developments in the foundry industry
Foundries and market economy - the quality of castings, compared with forming technology
b) Production according to market needs, meet customer needs
c) Systematic approach to quality management, ISO 9000
2. Properties of casting alloys
a) Fusibility, fluidity and running capacity
b) Solubility of gases, inclusions
c) Segregation defects
d) Evaporation of metals
e) Interaction between mold and melt
3.Crystallization of casting alloys
a) Homogeneous and heterogeneous nucleation, constitutional supercooling
b) Crystallization of Fe and Al alloys
4. Solidification process
a) Transverse temperature gradient
b) Longitudinal temperature gradient
5. Volume changes during solidification and cooling
a) Solidification contraction, hot spots, shrinkage cavities
b) Feeding - types of risers, riser dimensions and shapes
c) Feeding distance, the size and number of risers
6. Solid contraction and contraction defects
a) Stress generation
b) Hot tearing and cracks
c) Distortion
d) Residual elastic stress
7.Gating system design
a) Main requirements on the gating system
b) Basic components of gating systems
c) Pouring time, choke area and gating ratios
8. Foundry iron alloys - their metallurgy and heat treatment
A. Cast iron with lamellar graphite
B. Cast iron with spheroidal graphite
9. Foundry iron alloys - their metallurgy and heat treatment
Cast iron with a graphite červíkovitým
B. Malleable cast iron
C. Cast iron for special applications
D. Steel for castings
10. Foundry alloys
A. Classification of aluminum alloys according to IEC and EN
B. Principles of melting aluminum alloys
c refining, treatment of the melt, degassing
d silumin alloy - types, vaccination, modification, heat treatment
E. Other used alloys Al - use heat treatment
11. Casting magnesium alloy
a characteristic, occurrence and properties of magnesium
B. Production of metal magnesium and its consumption
magnesium alloy
d Metallurgical and technological principles for magnesium
e Reaction with magnesium alloy molding materials
12. Foundry alloy of zinc and copper
A. History, occurrence production
zinc alloys and casting methods
c Copper alloys - types, principles of melting
13. Foundry alloys of titanium, tin, lead
a temperature, melting and casting, using

Seminar contents:

Phase diagrams Fe-C, Fe-Fe3C.
Cast iron evaluation criteria.
Solidification, feeding, casting tension.
Gating systems.
Calculation of charge.
Videos.
Excursion.

Recommended literature:

NĚMEC, M., BEDNÁŘ, B., STUNOVÁ, B.: Teorie slévání. České vysoké učení technické v Praze, Česká technika - nakladatelství ČVUT, Praha : 2009. 218 s. ISBN 978-80-01-04395-0.
NĚMEC, M., PROVAZNÍK, J. Slévárenské slitiny neželezných kovů. Vydavatelství ČVUT, Praha : 2008. 137 s. ISBN 978-80-01-04116-1.
PLACHÝ, J.; NĚMEC, M.; BEDNÁŘ, B. Teorie slévání. Vydavatelství ČVUT, Praha : 2002. 164 s. ISBN 80-01-02471-7.
VOJTĚCH, D. Kovové materiály. Vydavatelství VŠCHT Praha, Praha : 2006. 185 s. ISBN 80-7080-600-1.
ROUČKA, J. Metalurgie litin. 1. vyd., Brno : PC-DIR Real, 1998. 166 s. ISBN 80-214-1263-1.
ROUČKA, J. Metalurgie neželezných slitin. Akademické nakladatelství CERM, Brno : 2004. 148 s. ISBN 80-214-2790-6.
MICHNA, Š., LUKAČ, I., OČENÁŠEK, V., KOŘENÝ, R., DRÁPALA, J., SCHNEIDER, H., MIŠKUFOVÁ, A. A KOL. Encyklopedie hliníku. Adin s.r.o., Prešov : 2005.
GEDEONOVÁ, Z, JELČ, I. Metalurgia liatin. HF TU v Košiciach, Košice : 2000. 288 s. ISBN 80-7099-516-5.

Abbreviations used:

Semester:

• W ... winter semester (usually October - February)
• S ... spring semester (usually March - June)
• W,S ... both semesters

Mode of completion of the course:

• A ... Assessment (no grade is given to this course but credits are awarded. You will receive only P (Passed) of F (Failed) and number of credits)
• GA ... Graded Assessment (a grade is awarded for this course)
• EX ... Examination (a grade is awarded for this course)
• A, EX ... Examination (the award of Assessment is a precondition for taking the Examination in the given subject, a grade is awarded for this course)

Weekly load (hours per week):

• P ... lecture
• C ... seminar
• L ... laboratory
• R ... proseminar
• S ... seminar