Novel Concept of Cleansing the Liquid Steel by the Fine In-Situ Phase due to the Composite Ball Explosion Reaction in RH Ladle

Abstract:

The production of high purity steel is a major task for the iron and steel enterprises in the 21^st century. To improve the quality of steel products and produce the cleanness steel, the key technique is to control inclusions in the molten steel. In the present investigation, a novel fine inclusion removal technology due to the dispersed in-situ phase induced by the composite ball explosion reaction was put forward. A composite ball with this function has been designed and the industrial experimental investigation was also carried out. The results indicate that feeding composite ball in RH ladle is a novel technology and the inclusion in the molten steel can be removed effectively. Compared with conventional inclusion removal technology, the number of the oxide inclusion can be decreased to a lower level and the inclusion size becomes much finer. Using this novel technology, the total oxygen in the as-cast slab can approach to 6ppm. This novel technology can be achieved without special facility and be realized in most steelmaking plant.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 2895-2904
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.2895
• Online since: May 2011
• Authors: Zhen Li, Xiao Feng Wang, Yang Lin, Peng Fei
• Keywords: Composite Ball, Explosion Reaction, Fine Bubble, Inclusion Removal, Slag Infiltration

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