Linking Customer Needs of Refractory Suppliers with Technological Requirements on the Refractories

Leandro Schöttler1, Jens Fruhstorfer2, Christos G. Aneziris2

1 Deutsche Edelstahlwerke GmbH, 57078 Siegen/Germany
2 Institute of Ceramic, Glass and Construction Materials, TU Bergakademie Freiberg, 09596 Freiberg/Germany


Volume 11, Issue 2, Pages 71 - 75


Although the suppliers and developers of refractories often know what is expected of their product, in many cases the details of what requirement is how important are unknown and diffcult to estimate. A tool to link customer needs with technological requirements is a method called House of Quality (HOQ). In this study a planning matrix­HOQ for refractories applied in steel ingot casting is developed. Of the technological requirements thermal shock, erosion, impact and corrosion resistance, the thermal shock resistance has the highest impact on the application behaviour. Nevertheless, by optimising the corrosion resistance good results can be obtained faster. Thus, the method proved to be able to identify not only importances of the requirements but also an order in which to address their development.


house of quality, quality function deployment, steel ingot casting, refractories


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