Thermodynamics and Dynamics of Nitrogen Increasing in LF Refining Process

Zheng De Ren; Sheng Qin Zhang; Zhu Bing Gao; Qian Ying Zhang

doi:10.4028/www.scientific.net/AMR.538-541.2387

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Thermodynamics and Dynamics of Nitrogen Increasing...

Thermodynamics and Dynamics of Nitrogen Increasing in LF Refining Process

Abstract:

Nitrogen is one of harmful elements in liquid steel. Reducing nitrogen quantity is required for making high-grade steel. This paper analyzes the reaction mechanism of nitrogen increasing through the methods of metallurgical thermodynamics and dynamics. In liquid steel dissolved nitrogen and nitrides are the main forms of nitrogen. The factors of influence on nitrogen increasing are temperature, kinds and quantity of the alloying elements in the liquid steel, , the lifetime of foam in foam slag, the quantity of flow of argon and so on. Analytical results of metallurgical thermodynamics and dynamics are verified by measuring nitrogen content in the links of LF refining process of new developed area of Chongqing steel and iron Co.Ltd.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

2387-2391

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.2387

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Online since:

June 2012

Authors:

Zheng De Ren, Sheng Qin Zhang, Zhu Bing Gao, Qian Ying Zhang

Keywords:

Dynamic, LF Refining, Nitrogen Increasing, Thermodynamic

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