Preliminary communication

Processes at the inetrface molten metal-sand mold

Z. Janjušević ; Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey 86, Belgrade, Serbia
Z. Gulišija ; Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey 86, Belgrade, Serbia
M. Mihailović ; Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey 86, Belgrade, Serbia
A. Patarić ; Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey 86, Belgrade, Serbia

Abstract

The processes that take place at the liquid metal-sand mold interface during the casting and crystallization of metal were studied in this paper. The mold was made using the CO₂ – method, with the addition of active components, such as: MgO, TiO₂, AlK(SO₄)₂ and Na₂SO₄. At the liquid steel pouring temperature, these active components undergo decomposition in the mold, caused by heat release during pouring, crystallization and cooling of castings. Silicates, which have an important influence on casting surface quality, are formed as a result of the interaction between the mould material and liquid steel.

Keywords

molten steel; sand mold; interface

Hrčak ID:

110069

URI

https://hrcak.srce.hr/110069

Publication date:

1.4.2014.

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