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Thermal Properties of Foundry Mould Made of Used Green Sand

Krajewski P. K., Piwowarski G., Buraś J.

Archives of Foundry Engineering

2016

Vol. 16, iss. 1

29--34

The paper presents results of measuring heat diffusivity and thermal conductivity coefficients of used green foundry sand in temperature range ambient – 600°C. During the experiments a technical purity Cu plate was cast into the green-sand moulds. Basing on measurements relationships of the measured properties were evaluated. It was confirmed that the obtained relationships are complex and that water vaporization strongly influences thermal conductivity of the moulding sand in the first period of the mould heating by the poured and solidified casting.