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Metallurgy, Vol. 53 No. 4, 2014.

Preliminary communication

Compressive stresses of mould mixture

G. Solenicki ; ARTBOARD AB, Sweden
I. Budic ; Mechanical Engineering Faculty in Slavonski Brod, University of Osijek, Croatia
I. Kladaric ; Mechanical Engineering Faculty in Slavonski Brod, University of Osijek, Croatia
D. Novoselovic ; Mechanical Engineering Faculty in Slavonski Brod, University of Osijek, Croatia

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Abstract

The source of compressive stresses lies in the structure of quartz sand. By reaching the critical temperature (from 560 to 580 °C), the quartz sand grains increase volume. The increase in volume causes the movement of surrounding grains of sand. In this paper, it is shown by the dilatometric investigations of different granulometric compositions of quartz sands how the granulometric composition affects the size of the mould dilatation caused by heating during pouring of the melt.

Keywords

mould; quartz sand; compressive stresses; grain size; dilatometric investigations; scabbing

Hrčak ID:

122197

URI

https://hrcak.srce.hr/122197

Publication date:

1.10.2014.

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