Study on Cleanliness of Ultra-Low Carbon Steel First Slab

Qi Chun Peng; Xue Sen Yu; Wei Xiong; Liu Yang; Liang Zhou Zhang; Ming Yao Peng; Ming Wei Zhou

doi:10.4028/www.scientific.net/AMR.524-527.2037

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 524-527Study on Cleanliness of Ultra-Low Carbon Steel...

Study on Cleanliness of Ultra-Low Carbon Steel First Slab

Abstract:

By means of Oxygen and Nitrogen Analyzer, Metallographic Examination, SLIME, SEM, EDS, etc, the cleanliness of ultra-low carbon steel first slab produced by LD-RH-CC, and the comparative analysis with the cleanliness of normal slab is studied. The results show that T[O] and [N] are obviously decreasing with the increasing of casting length. The micro-inclusions and large-inclusions are generally decreasing with the increasing of casting length. The micro-inclusions of the first slab are mainly from deoxidization products and reoxidation of liquid steel. And the sources of large-sized inclusions mainly are reoxidation of liquid steel, slag entrapment in mould or tundish and stuffing sand. The cleanliness of ultra-low carbon steel first slab is closed to those normal slabs at the length of 3.5m.

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Periodical:

Advanced Materials Research (Volumes 524-527)

Pages:

2037-2043

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.524-527.2037

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Online since:

May 2012

Authors:

Qi Chun Peng, Xue Sen Yu, Wei Xiong, Liu Yang, Liang Zhou Zhang, Ming Yao Peng, Ming Wei Zhou

Keywords:

Cleanliness, First Slab, Inclusion, Ultra-Low Carbon Steel

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