ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Quantitative Evaluation of Relationship between Coke Strength and Pore Structure
Yukihiro KubotaSeiji NomuraTakashi ArimaKenji Kato
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2011 Volume 51 Issue 11 Pages 1800-1808


Coke strength is mainly determined by pores and cracks that cause fracture of coke. In this study, connected pores that were considered to cause fracture of coke were investigated. In order to evaluate connected pores quantitatively, low roundness pores (whose roundness were below 0.2) were measured by image analysis technique of microscopic photographs of cokes. The relationship between the amount of low roundness pores and coke strength (DI1506) showed a good correlation. It is thought that the amount of low roundness pores is one of the factors determining coke strength.

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© 2011 by The Iron and Steel Institute of Japan
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