1. Physical properties of molten metals and alloys.
2. Fluidity and castability of molten metal.
3. Flow dynamics of molten metal.
4. Gating system design.
5. Gases in metal and their transport in mould cavity.
6. Crystallization. Nucleation. Dendritic growth.
7. Solidification (freezing) of casting. Thermal axis.
8. Solidification contraction and shrinkage formation.
9. Hot spots. Chills. Feeding distance.
10. Risering (feeding) . Progressive and directional solidification.
11. Solid contraction.
12. Contraction stress. Hot tearing.
13. Properties of metals at high temperature (near solidus).
14. Thermal stress, Residual stress. Cold cracking.
Practice:
1st Opening exercises, lab work Poruba, EKF, security training.
2nd Differential thermal analysis (measure T for Exercise 7).
3rd The viscosity of molten metals and alloys. The surface tension of metals and alloys.
4th Cooling curves of metal (pure metal, alloy, measuring T for Exercise 7).
5th Fluidity I. (temperature effect - one alloy).
6th Fluidity II. (alloy of impact - constant overheating).
7th Fluidity III. (forms of influence - one alloy).
8th Gating system I (calculations, discharge from the pan, lift).
9th Feeding System II. (modeling the AFS - μ).
10th Gating system III. (calculations).
11th The temperature field of casting I (JBS - condensation zone).
12th The temperature field of casting II. (chromite + water glass (SiO2)).
13th Crystallization - a film on the etched samples dendritic structure.
14th Credits.
2. Fluidity and castability of molten metal.
3. Flow dynamics of molten metal.
4. Gating system design.
5. Gases in metal and their transport in mould cavity.
6. Crystallization. Nucleation. Dendritic growth.
7. Solidification (freezing) of casting. Thermal axis.
8. Solidification contraction and shrinkage formation.
9. Hot spots. Chills. Feeding distance.
10. Risering (feeding) . Progressive and directional solidification.
11. Solid contraction.
12. Contraction stress. Hot tearing.
13. Properties of metals at high temperature (near solidus).
14. Thermal stress, Residual stress. Cold cracking.
Practice:
1st Opening exercises, lab work Poruba, EKF, security training.
2nd Differential thermal analysis (measure T for Exercise 7).
3rd The viscosity of molten metals and alloys. The surface tension of metals and alloys.
4th Cooling curves of metal (pure metal, alloy, measuring T for Exercise 7).
5th Fluidity I. (temperature effect - one alloy).
6th Fluidity II. (alloy of impact - constant overheating).
7th Fluidity III. (forms of influence - one alloy).
8th Gating system I (calculations, discharge from the pan, lift).
9th Feeding System II. (modeling the AFS - μ).
10th Gating system III. (calculations).
11th The temperature field of casting I (JBS - condensation zone).
12th The temperature field of casting II. (chromite + water glass (SiO2)).
13th Crystallization - a film on the etched samples dendritic structure.
14th Credits.