1. Moulding and core mixtures. Basic components of moulding mixtures, their definition and classification. Basic characterization and division of sands. Evaluation of quality of natural and artificial sands
2. Silica sands, physical – chemistry properties, disadvantages of silica sands and their elimination
3. Artificial sands. Classification, general characterization and possibility of their utilization. Structure of moulding mixture. Porosity and permeability of moulding mixtures
4. Thermo-physical properties of moulding mixtures. Specific surface area, methods of its determination, Coefficient of angularity and its influence on technological properties of moulding mixture
5. Activation of sand grains. Reclamation of sands, methods and evaluation of quality reclaim
6. Binder systems of the I.-IV. Generation, general characterization. Clay binders of foundry technology. Role of water in clay minerals. Bentonites
7. Activation of bentonites. Changes of bentonite binder after thermal exposition. Control of green sand systems
8. Additives of green sand system. Carriers of Pyrolysis Carbon. Other additives of green sand systems.
9. Chemicization of mould and core manufacture. Binder system of the II. Generation – alkali silicates, general characterization. Methods and principles of alkali silicates curing
10. CT – and ST – mixtures with alkali silicates. CO2 – process. Self-setting mixtures with liquid hardeners. Problems with collapsibility of mixtures with water glass
11. Binder systems of the II. Generation based on organic resins. Moulding and cores mixtures based on phenol – formaldehyde resins. Croning method. HOT-BOX method and its versions. Gisag COLD-BOX method (No - bake )
12. Moulding and cores mixtures based on furan resins. Self-settings mixtures with catalyst. Self-hardening mixture (SO2 – process), Resol – CO2 process
13. Chemistry of polyurethane binders. Alkyd-oil polyurethanes. Phenol polyurethanes. Methods of core manufacture PUR COLD-BOX, PEP-SET. Saccharide binders and additives.
14. Binders systems of the III. And IV. Generation, application of physical and biological ways of binding for mould manufacture.
2. Silica sands, physical – chemistry properties, disadvantages of silica sands and their elimination
3. Artificial sands. Classification, general characterization and possibility of their utilization. Structure of moulding mixture. Porosity and permeability of moulding mixtures
4. Thermo-physical properties of moulding mixtures. Specific surface area, methods of its determination, Coefficient of angularity and its influence on technological properties of moulding mixture
5. Activation of sand grains. Reclamation of sands, methods and evaluation of quality reclaim
6. Binder systems of the I.-IV. Generation, general characterization. Clay binders of foundry technology. Role of water in clay minerals. Bentonites
7. Activation of bentonites. Changes of bentonite binder after thermal exposition. Control of green sand systems
8. Additives of green sand system. Carriers of Pyrolysis Carbon. Other additives of green sand systems.
9. Chemicization of mould and core manufacture. Binder system of the II. Generation – alkali silicates, general characterization. Methods and principles of alkali silicates curing
10. CT – and ST – mixtures with alkali silicates. CO2 – process. Self-setting mixtures with liquid hardeners. Problems with collapsibility of mixtures with water glass
11. Binder systems of the II. Generation based on organic resins. Moulding and cores mixtures based on phenol – formaldehyde resins. Croning method. HOT-BOX method and its versions. Gisag COLD-BOX method (No - bake )
12. Moulding and cores mixtures based on furan resins. Self-settings mixtures with catalyst. Self-hardening mixture (SO2 – process), Resol – CO2 process
13. Chemistry of polyurethane binders. Alkyd-oil polyurethanes. Phenol polyurethanes. Methods of core manufacture PUR COLD-BOX, PEP-SET. Saccharide binders and additives.
14. Binders systems of the III. And IV. Generation, application of physical and biological ways of binding for mould manufacture.