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Abstract

The article presents the new technology of the refractory materials used for the ladles and pouring devices. The aim for solving the majority of the problems that originated from the refractory lining was to develop the group of cement-free TRIAD products by Vesuvius company. The cement-free setting system in the TRIAD products eliminates calcium oxide (CaO) that occurs in low and extra low cement concretes resulting in its higher strength at higher temperatures. The features of the new cement-free castables were described. One of the most unique features of this technology is the porous material structure. Small venting microchannels are formed during the concrete setting process. These micro-channels allow for removing water vapor from the lining without affecting its refractory properties. On the other hand, the diameter of pores is so low that it disallows the penetration of slag and metal into the lining, extends its operating life at the same time facilitates cleaning and removing build-ups. The procedure of the preparation of these materials, as well as the method of building of the lining, were presented. An example of the practical use of these materials in the ductile cast iron foundry was presented, showing the advantages of the new refractory materials over the traditional ones.
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Bibliography

[1] Drevin, J. (2014). Triad – a new range of user-friendly, high-strength refractory concretes. Przegląd Odlewnictwa. 9-10, 390-393. (in Polish).
[2] Rybak, M. (2011). Influence of alumina cement hydration conditions on concrete properties. Piece Przemysłowe & Kotły. 1, 21-25. (in Polish).
[3] Drevin J. (2011). Triad – Triad high-performance castable linings. Foundry Practice. 253(6) 16-20.
[4] Cygan B., Dorula J., Jezierski J. (2018). TRIAD - modern technology of non-cement concrete in cast iron foundry. In Congress Proceedings of the 73rd World Foundry Congress "Creative Foundry", 23rd–27th September 2018 (pp. 561-562). Krakow, Poland: Polish Foundrymen's Association.

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Authors and Affiliations

B. Cygan
1 2
J. Dorula
3
J. Jezierski
1
ORCID: ORCID

  1. Silesian University of Technology, Department of Foundry Engineering, 7 Towarowa, 44-100 Gliwice, Poland
  2. Teksid Iron Poland Sp. z o.o., 49 Ciężarowa, 43-430 Skoczów, Poland
  3. Vesuvius Poland Sp. z o.o. , Foundry Division - Biuro Handlowe, Portowa Business Center, 8 Portowa, 44-100 Gliwice, Poland

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