Behavior Analysis of Nitrogen Content Increasing in Low Alloy Steel Smelting Process
ZHANG Fan
FAN Zhijin
DING Liquan
Abstract：In order to improve the level of nitrogen content control of low alloy steel, the paper analyzed the behavior of nitrogen content increasing from the perspective of thermodynamics and kinetics, and illustrated the factors with related experiment. The results show that, the nitrogen solubility in liquid steel relate to temperature, nitrogen partial pressure and alloy composition;bubbles-liquid steel surface chemical reaction is restrictive link; when w(O) ≥0.04% or w(S) ≥0.06% , the increasing nitrogen process of liquid steel stopped; when the whole strength of bottom blowing nitrogen of BOF is no more than 0.025 m3/(min·t), nitrogen content of converter can be controlled within 10×10-6.
Keywords：low alloy steel smeltingnitrogen content increasingthermodynamicskinetic
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 27-29,33 )