Ceramics-Silikáty 48, (3) 128 - 134 (2004) |
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SIMULATION OF THE EFFECT OF MELT COMPOSITION ON MINERAL WOOL FIBRE THICKNESS
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Blagojević Bogdan 1, Širok Brane 1, Štremfelj Brane 2
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1 University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, SI-1000 Ljubljana, Slovenia
2 Termo, d.d., industrija termičnih izolacij, Trata 32, SI-4220 Škofja Loka, Slovenia
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Keywords: Mineral wool, Fibre thickness, Regression model
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This article presents an analysis of the influence of chemical composition of the melt on the thickness of mineral wool fibres
produced industrially on a double-disc spinning machine. To calculate density, viscosity and surface tension of a multi-component
silicate melt, several parameters as well as own constitutive equations were included in the model. The proposed
regression model was verified and fitted by the measurement of the thickness of an industrial fibre of known chemical composition
and produced under defined technological parameters, i.e. radius of spinning discs, disc rotational speed, thickness
of the melt film and melt volume flow rate. Verified model brings a possibility to simulate the fibre thickness when changing
both technological process parameters and chemical composition of the melt. |
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