Mold and Core Sands in Metalcasting: Chemistry and Ecology

The metal casting, uses large amounts of natural resources, energy and metals as well as generates significant amounts of gases and solid wastes, which have an essential influence on the natural environment and work conditions in casting houses. The condition of the further development is the adjustment to the strategy of the sustainable development. This book examines potential solutions to the economic, ecological, and occupational hazards generated by the foundry industry. It focuses on emissions of chemical compounds during the preparation and formation of molding sands, molds pouring with molten metal, molds cooling and castings knocking out. It also addresses the effects of the spent molding sands reclamation process and the influence of spent sands on the environment during their storage. Establishing the most sustainable techniques for limiting the negative impact of foundry processes on the environment is explored in detail. The book will be valuableto academics and industry professionals alike.

• Describes the mechanisms of hardening and thermal destruction of individual binders in moulding and core sands;
• Assesses the influence of moulding and core sands technology on the environment;
• Discusses state of the art moulding and core sand technology.

Chapter 1. Introduction. - Part I. Organic Chemistry. - Chapter 2. General Principles of Organic Chemistry. - Chapter 3. Synthetic Resins. - Part II. Organic Binder Systems of Molding and Core Sands. - Chapter 4. Aggregate Molding Materials. - Chapter 5. Division of the Molding and Cores Sands Criterions. - Chapter 6. Cold - Setting Processes. - Chapter 7. Gas Hardened Processes. - Chapter 7. Heat Curing Processes. - Part III. Inorganic Binder Systems of Molding and Core Sands and Protective Coatings. - Chapter 9. Sodium Silicate Molding Sands. - Chapter 10. Green Sands. - Chapter 11. Other Molding And Cores Sands With Inorganic Binders. - Chapter 12. Protective Coatings for Mold and Core Sands. - Part IV. Special Technologies of Making Molds and Cores. - Chapter 13. Alternative Methods Using in Mold and Cores Technologies. - Part V. Environmental Aspects Mold and Core Technologies. - Chapter 14. Influence of the Technologies of Molding and Core Sands on the Environment and Working Conditions Summary.