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Relationship between Elasticity and Durability of Alumina-Magnesia Castables Used for the Impact Pad of Steel Ladles

作者:TSUYOSHI MATSUI;KIYOSHI GOTO;KOUICHI NISHI;

作者单位:Nippon Steel Corp., *Krosai Harima Corp.;Nippon Steel Corp., *Krosai Harima Corp.;Nippon Steel Corp., *Krosai Harima Corp.

刊名:Journal of the Technical Association of Refractories

ISSN:0285-0028

出版年:2010-01-05

卷:30

期:2

起页:126

止页:126

分类号:TQ175

语种:英文

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内容简介

Alumina-magnesia castables are generally used for the impact pad in steel ladle bottoms, but there is a problem that peeling-off damage can initiate from cracks that form. The authors framed a hypothesis that the cracks are generated due to thermal shock damage. Then by focusing on the elasticity, which governs the thermal shock resistance, a trial castable was produced which differed from a conventional castable only in the elasticity, to evaluate the characteristics in actual service in a steel ladle bottom. The authors attempted to reveal the damage mechanism(s) from the relationship between the difference in elasticity and the durability.

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