Lectures:
1. Mould and metal coefficients in heat transfer on the metal/mould interface.
2. Thermal expansion coefficient.
3. Fuliid pressure in metals. Gating system calculation and aids. Filtering of the metal.
4. Freezing and solidification of castings in metallic mould. Air gap formation.
5. Growth of the solid. Segragation (dendritic, gravity). Thermal gravity convection
6. Macro-modelling of solidification. Physical and numerical methods.
7. Metal reoxidation in the mould cavity. Transport of gas in metal and mould cavity.
8. The angle of inner feeding channel. Directional solidification in hot spots.
9. Infiltration (penetration) of feeding metal in dendritic skeleton.
10. Riser optimalization. Feeding aids.
11. Thermal and transformation stress. Measurement and reduction of residual stress in casting.
12. The use of acoustic emission method for the study of discontinuity defects in castings.
13. The wall movement of a mould.
14. Rules to obtain the correct and conform casting.
Practice:
1st Safety Training
2nd Determination of the constant freezing (wax).
3rd Modelling of solidification thermal nodes paraffin.
4th Pouring tests on steel - chladítek influence the course of solidification
5th The temperature field of casting I
6th The temperature field of casting II.
7th Linear shrinkage - steel, aluminum alloy.
8th Linear shrinkage - iron.
9th Tensions in the casting, casting bars I.
10th Tensions in the casting, casting bars II.
11th Strength and plastic properties of steel in the solidus.
12th Acoustic emission
13th Simulation of solidification using the computer (calculating solidification basic shapes)
14th Final consultation - Credits.
1. Mould and metal coefficients in heat transfer on the metal/mould interface.
2. Thermal expansion coefficient.
3. Fuliid pressure in metals. Gating system calculation and aids. Filtering of the metal.
4. Freezing and solidification of castings in metallic mould. Air gap formation.
5. Growth of the solid. Segragation (dendritic, gravity). Thermal gravity convection
6. Macro-modelling of solidification. Physical and numerical methods.
7. Metal reoxidation in the mould cavity. Transport of gas in metal and mould cavity.
8. The angle of inner feeding channel. Directional solidification in hot spots.
9. Infiltration (penetration) of feeding metal in dendritic skeleton.
10. Riser optimalization. Feeding aids.
11. Thermal and transformation stress. Measurement and reduction of residual stress in casting.
12. The use of acoustic emission method for the study of discontinuity defects in castings.
13. The wall movement of a mould.
14. Rules to obtain the correct and conform casting.
Practice:
1st Safety Training
2nd Determination of the constant freezing (wax).
3rd Modelling of solidification thermal nodes paraffin.
4th Pouring tests on steel - chladítek influence the course of solidification
5th The temperature field of casting I
6th The temperature field of casting II.
7th Linear shrinkage - steel, aluminum alloy.
8th Linear shrinkage - iron.
9th Tensions in the casting, casting bars I.
10th Tensions in the casting, casting bars II.
11th Strength and plastic properties of steel in the solidus.
12th Acoustic emission
13th Simulation of solidification using the computer (calculating solidification basic shapes)
14th Final consultation - Credits.