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Manufacture of Rotationally Symmetric Multilayer Refractory Devices for Steel Casting Applications by Spiral Winding of Ceramic Green Tapes
D. Jakobsen1, R. Hammerbacher1, S. Dudczig2, T. Fey1, A. Roosen1
1 University of Erlangen-Nuremberg, Department of Materials Science, Glass and Ceramics, D-91058 Erlangen, Germany
2 Technische Universität Bergakademie Freiberg, Institute of Ceramics, Glass and Construction Materials, D-09599 Freiberg, Germany
received Nov 11, 2013, received in revised form Jan 22, 2014, accepted Mar 21, 2014
Vol. 5, No. 2, Pages 137-144 DOI: 10.4416/JCST2013-00040
Abstract
In order to create rotationally symmetric refractory devices from ceramic green tapes, the spiral winding method, which is mainly known from the paper industry, was applied. Different green tapes with varying properties with regard to shrinkage, porosity and Young's modulus were used to generate multilayer tubes with the spiral winding and the cold low pressure lamination technique. The tubes were fired in air and their microstructure was investigated. Thermal shock tests were conducted to evaluate the applicability of the fabricated structures for refractory applications. The correlation between the microstructure and thermal shock behaviour of the tubes is discussed.
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Keywords
Keywords: Spiral winding, green tapes, refractories, thermal shock
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