Control of Nitrogen Content in Liquid Steel in CSP Process
SHI Zhiji1，WU Wei2，JIAO Xingli1,2，LIU Liu2，LI Jun2
1. First General Steel Making and Rolling Factory, Maanshan Iron and Steel Co Ltd, Maanshan 243000,Anhui,China；2. Metallurgical Technology Institute, Central Iron and Steel Research Institute, Beijing 100081,China
Abstract：The relation between the performance of hot rolled plate and the nitrogen content in the steel are discussed. The results show that when the nitrogen content is decreased, the yield strength of hot rolled plate decreases, which meets the requirement of coldrolled base stuff. The reason of nitrogen content increasing in the smelting process is analyzed according to the real production data and the control methods of nitrogen content in the steel are presented, which has obtained better effects in production.
