Interakce tekutého kovu se slévárenskou cementovou formou

INTERACTION BETWEEN LIQUID METAL AND FOUNDRY CEMENT SAND

konferenční sborník (ne článek)

en

This paper presents the results of the investigation of new hydraulically setting binders in foundry moulds with contact of liquid grey cast iron. These binders based on alumina and Portland cements are environmentally friendly and exhibiting admirable performance. Methodology of trials was designed and its attestation was implemented in experimental and working conditions. In the interface between cement sands and liquid metal were certified generation of complex allied substances – on the base Si, Fe, Al and Ca. In many cases FeS has been found. All these compounds are illustrated by SEM microscopy. The mathematical model of mechanical penetration has been created and proved influence of the temperature and chemical composition of grey iron on the range of penetration in the experimental moulds. The research and development of these inorganic binders for the foundry use will be the solution for future no waste technologies.

Článek prezentuje výsledky výzkumu a vývoje ekologicky přátelských formovacích směsí na bázi portlandského cementu a popisuje reakce na rozhraní při odlévání litiny s lupínkovým grafitem.

This paper presents the results of the investigation of new hydraulically setting binders in foundry moulds with contact of liquid grey cast iron. These binders based on alumina and Portland cements are environmentally friendly and exhibiting admirable performance. Methodology of trials was designed and its attestation was implemented in experimental and working conditions. In the interface between cement sands and liquid metal were certified generation of complex allied substances – on the base Si, Fe, Al and Ca. In many cases FeS has been found. All these compounds are illustrated by SEM microscopy. The mathematical model of mechanical penetration has been created and proved influence of the temperature and chemical composition of grey iron on the range of penetration in the experimental moulds. The research and development of these inorganic binders for the foundry use will be the solution for future no waste technologies.

Cementová formovací směs, interakce, litina s lupínkovým grafitem, komplexní sloučeniny.

Cement Sand, Interaction, Gray Cast Iron, Complex Allied Substances

01.06.2009

978-80-214-3871-2

World Technical Forum-International PhD Foundry Conference

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