Compressive stresses of mould mixture

Compressive stresses of mould mixture

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 investi...

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Veröffentlicht in:Metalurgija 2014, Vol.53 (4), p.591
Hauptverfasser: Solenicki, G, Budic, I, Kladaric, I, Novoselovic, D
Format: Web Resource
Sprache:eng
Schlagworte:
compressive stresses
dilatometric investigations
grain size
mould
quartz sand
scabbing
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Zusammenfassung: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.
ISSN:0543-5846
1334-2576