Analysis of Large Inclusions in Q195 Steel

Abstract:

Aimed at the Q195 steel strip inclusion defects in a steel mill, using tracer analysis make system analysis to casting of large inclusions content. Large inclusions in casting containing ladle slag accounted for about 39% of the total number of test, containing tundish covering agent accounts for about 42.2%, while containing protection slag accounted for 45%. Shows that large inclusions in the billet is mainly comes from the crystallizer mold powder entrapment, secondly is the tundish slag and the ladle slag powder entrapment. When transient casting large inclusions content is steady casting several times, increasing the stability of operation on transient casting, controlling the stability of cast-on and ladle changing, stabilizing the liquid level of tundish and mould can improve the quality of the steel.

• Periodical: Advanced Materials Research (Volume 997)
• Pages: 522-525
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.997.522
• Online since: August 2014
• Authors: Shuo Ming Wang*, Yan Wang, Ruo Si Wang
• Keywords: Large Inclusions, Tracer Analysis, Transient Casting

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