Determining Thermal Properties of Insulating Sleeves

Abstract:

The presented work is aimed at determining thermal diffusivity, thermal conductivity and heat capacity of insulating sleeves used in Polish metallurgical/foundry practice. On basis of the theory elaborated in [1] the mean values of thermophysical properties for temperatures range of about 150-1000 oC were obtained. The results obtained during the examinations presented in the paper can be helpful when formulating boundary conditions during the computer aided simulation of the processes of heat and mass transfer in the system: casting (ingot) – mould riser (ingot head) – ambient, which uses the investigated insulating sleeves [2, 3]. The method of determining thermal properties can be also used for other foundry materials, e.g. sands or cores.

• Periodical: Materials Science Forum (Volume 649)
• Pages: 487-491
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.649.487
• Online since: May 2010
• Authors: Witold K. Krajewski, Józef Szczepan Suchy
• Keywords: Heat Exchange, Ingot-Head, Insulation, Solidification, Thermal Property

References

[1] A.I. Vejnik: Theory and calculations of solidification of castings in ceramic mould. Maszgiz. Moscow 1954 (in Russian).

[2] W.K. Krajewski: Mater. Sci. Forum, this issue.

[3] W.K. Krajewski, J.S. Suchy, A.L. Greer and P. Schumacher: Development of Environmentally Friendly Cast Alloys and Composites, Marie Curie TOK-DEV Project No. MTKD-CT-2006042468, AGH University of Science and Technology - University of Cambridge - Montanuniversität Leoben (in progress).