Research and Practice of Nitrogen Content Control Technology in Titanium Microalloyed Steel
LI Ping
Abstract：This paper introduces the change of nitrogen content in Q355B titanium microalloyed steel produced by Yinshan steel-making plant,analyzes the influence of various factors in production process on nitrogen content in steel,including carbon and oxygen content at the end of converter and tapping temperature,molten steel temperature,electrode power consumption,bottom argon blowing,submerged arc effect,continuous casting protective casting etc.The corresponding optimization measures are put forward,and the stable control of nitrogen content below 40 × 10-6 is achieved by controlling the end carbon content of converter,tapping temperature and the composition of refining slag.
Keywords：titanium microalloyed steelnitrogen contentconverterrefinecontinuous casting
Publication Date：2024-06-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 43-45,49 )