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Chemical Wear of Basic Brick Linings in the Non‐Ferrous Industry

Titelangaben

Gregurek, Dean ; Majcenovic, Christian ; Spanring, Alfred ; Kirschen, Marcus:
Chemical Wear of Basic Brick Linings in the Non‐Ferrous Industry.
In: TMS 2012 : Supplemental Proceedings: Materials Processing and Interfaces. Volume 1. - Pittsburgh : Wiley , 2012 . - S. 978-988
ISBN 9781118296073
DOI: https://doi.org/10.1002/9781118356074.ch123

Abstract

In the non-ferrous metals industry, particularly in copper and lead smelting furnaces, the working lining frequently comprising magnesia-chromite bricks is exposed to several stresses. These can be classified as chemical, thermal, and mechanical stresses occurring as a single wear factor or in combination. The chemical factors include corrosion caused by slag and/or gaseous SO2 diffusion, redox effects, and hydration. In most of the non-ferrous metallurgical processes the chemothermal load resulting from Fe-silicatic slags of a fayalithic type is a common wear mechanism of magnesia-chromite bricks. Nevertheless, atypical massive SiO2-supply caused by changes in the processing and/or the uncontrolled addition of silica sand results in the substantial formation of forsterite, which due to the associated volume expansion causes “forsterite bursting”. Whilst such a wear phenomenon is seldom experienced in non-ferrous applications, it is quite typical for regenerator chambers in the glass industry in the case of extreme SiO2 supply (“carry-over”).

Weitere Angaben

Publikationsform: Aufsatz in einem Buch
Begutachteter Beitrag: Nein
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften
Forschungseinrichtungen > Institute in Verbindung mit der Universität > Fraunhofer-Zentrum für Hochtemperatur-Leichtbau (HTL)
Fakultäten
Forschungseinrichtungen
Forschungseinrichtungen > Institute in Verbindung mit der Universität
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 14 Jun 2019 07:39
Letzte Änderung: 14 Jun 2019 07:39
URI: https://eref.uni-bayreuth.de/id/eprint/49541