The requirement of sulfur content in high grade pipeline steel is very strict.There is obvious difference in deep desulphurization for molten steel refining between domestic and abroad.Based on the desulphurizatinn model of calcium treatment by the powder injection,the desulphutization model by the wire-feeding is established in this paper.Using this model to analysis the desulphurization experimental data of calcium treatment by the surface wire-feeding,the rising distance of calcium bubbles (the depth of feeding calcium) is obtained,and t...
