632-0701/04 – Metalcasting (S)

Slévárenství

1. Moulding materials and mixtures, opening materials, bonding-agent systems of the lst-4th generation. Moulds and cores, surface protection – spraying, coatings and paints 2. Elements of gating, calculation of the teeming time, the gatings according to the AFS-standard. 3. Structure of molten metals, nucleation, constitutional under-cooling. The primary crystallization of castings 4. Changes in volume of steels and cast irons in the course of crystallization. Risering of the thermal nodal sites 5. Elimination of the thermal nodal sites by changed design, by the outside and inside cooling 6. Mathematical solution of the course of solidification of the thermal nodal sites 7. Superficial and internal defects of castings, surface roughness and the burning-in defects. 8. Condensing zone of water and its consequences, origination of scabs 9. Gases picked up in metals, exogeneous and endogeneous sources of gas bubbles in the castings 10. Foundry stress; shrinkage, thermally-residual stress and transformation stress 11. Die casting. High-pressure, low-pressure and counter-pressure casting 12. Production of precise castings, continuous casting 13. Steels for castings; carbon and alloyed steels. Metallurgy of melting, foundry properties 14. Graphitization iron alloys. Grey and nodular cast iron, white and malleable cast iron, alloyed cast irons. Metallurgy and foundry properties